Bucket is sprayed with pesticide that has support to gardens agricultural

The utility model relates to a spray a barrel support technical field, concretely relates to bucket is sprayed with pesticide that has support to gardens agricultural, including air -drying base, damping spring and altitude mixture control part, the utility model discloses the paling board, it places on the fence board to spray the bucket with the pesticide, because it probably has the water droplet and remains to spray the bucket after spraying, the utilization blow the fan will spray fast the bucket weather, prevents at the user back of getting wet when using next time, damping spring is used for the buffering to spray the bucket placing the impact force that the in -process brought, hydraulic lifting columns accessible hand switch height -adjusting, place when need add water with the medicine on the fence board when spraying the bucket, accessible hydraulic lifting columns adjusts suitable height, after the water of treating the ladle body weathers, still can adjust the height thatis ...

Sheet metal part recess detection method and device based on image recognition

The invention relates to a sheet metal part recess detection method and device based on image recognition, and belongs to the technical field of sheet metal part detection, and the method comprises the following steps: installing a sheet metal part on a universal holder, and adjusting the orientation; feeding the sheet metal part into a condensing chamber to condense water drops on the surface of the sheet metal part; the sheet metal part is fed into a detection area, and the sunken position of the sheet metal part is detected; feeding the sheet metal part into a dyeing area, and dyeing the processing defects of the sheet metal part. According to the invention, the sunken position on the sheet metal part is detected; the machining defects in the concave positions are recognized, the sheet metal part is fed into a dyeing area, and the machining defects of the sheet metal part are dyed; the sheet metal part is fed into a high-temperature chamber, water drops on the sheet metal part are evaporated ...

Coordination template for ZnS or ZnSe nanometer crystal preparation and hydrothermal preparation method thereof

The invention relates to a matching template of nano ZnS or ZnSe crystal and a hydrothermal synthesis method thereof. Glutin or chitosan salt is taken as the matching template. The hydrothermal synthesis method includes the following steps: heating zinc salt and matching template agent at mass ratio of 1:1-10 for 1-8hours in water which is at mass ratio of 10-50 to zinc salt under constant temperature of 50-80 DEG C, then filtrating after cooling; adjusting the pH value to 9-12 through sodium hydroxide or ammonia, then adding sodium thiosulfate or sodium selenite at mass ratio of 0.5-5 to zinc salt; after dissolution, adding hydrazine hydrate or vitamin C at mass ratio of 0.5-10 to sodium thiosulfate or sodium selenite, after which clear and uniform solution can be obtained after dissolution; transferring the solution into a hydrothermal kettle and filling 60-90%of the hydrothermal kettle; rising the temperature to 120-240 DEG C and heating for 12-24h, then collecting the deposit and washing ...

Library seat distribution system and method based on sensor technology

The invention discloses a library seat distribution system and method based on a sensor technology. The library seat distribution system comprises five modules, namely a background management system, a pressure sensing and detecting system, a seat identification system, a user mobile phone and a user information card. All the modules work cooperatively, and the automatic distribution of library seats is achieved. According to the library seat distribution system and method based on the sensor technology, the sensing and detecting module used for managing the seats is introduced in, the conditions of using the seats by users are monitored in real time, dynamic distribution of the seats is conducted by combining user timetable information and current user appointment conditions, the using efficiency of the library seats is improved, and reasonability, rapidness and intelligence of the library seats are achieved finally.

Hemostat special for diabetic foot broken toes

The invention relates to a haemostat special for diabetic foot broken toes, and belongs to the technical field of medical instruments, the haemostat comprises a clamping assembly and a pressing assembly, the clamping assembly comprises a clamping piece and a pressure relief piece which is integrally arranged outside the clamping piece and used for opening the clamping piece, the clamping piece is a U-shaped elastic piece, and the clamping piece is a U-shaped elastic piece. A clamping neck protruding inwards is arranged in the area, close to the opening, of the U-shaped elastic piece, the pressure relief pieces are bent pieces which are arranged on the two sides of the clamping neck and extend towards the U-shaped closed end, and the two bent pieces are symmetrically arranged on the two sides of the U-shaped elastic piece. The pressing assembly comprises a pressing piece arranged on the inner side of the U-shaped elastic piece and a tightening stud penetrating through the U-shaped elastic ...

Process for preparing carbon nano-tubes filled by metal Zn

The invention discloses a method for preparing carbon nanotubes filled with metal Zn, which comprises the steps of dissolving water soluble salt of the metal Zn (used as a Zn source) in deionized water, preparing into a catalyst powder by a freeze-drying method, placing the catalyst powder into a chemical vapor deposition furnace, and allowing reaction with methane as a carbon source and nitrogenas a protective gas at 800-1,000 DEG C to obtain carbon nanotubes filled with the metal Zn. The inventive preparation method has the advantages of simple process, easy product purification, high yield, good effect, and applicability to industrial production.

Intelligent riding control system and method for two-wheeled vehicle

The invention provides an intelligent riding control system and method for a two-wheeled vehicle, the intelligent riding control system comprises a sensing system, a control system and an execution system, and the sensing system and the execution system are respectively connected with the control system; the sensing system is used for collecting posture parameters of a driver, and the posture parameters comprise the current gravity center offset, the time used by the current gravity center displacement offset and the current gravity center offset direction; the control system is used for calculating and estimating the riding intention according to the current center-of-gravity offset, the time used by the current center-of-gravity displacement offset and the current center-of-gravity offset direction; controlling an execution system to execute corresponding operation according to the riding intention and the current state of the vehicle; driving control is conducted on the vehicle by collecting ...

Method for detecting quality of rivet-free connection joint of metal material

The invention discloses a method for detecting the quality of a joint of a metal material without rivet connection, and belongs to the technical field of quality inspection. The quality detection method comprises the following steps: pre-screening joints of a rivet-free connection product to obtain a test sample; obtaining joint bottom thickness data of the test sample, and carrying out destructive test on the joint of the test sample; obtaining the standard reaching range of the joint bottom thickness data by utilizing the performance data obtained by the destructive test; collecting joint bottom thickness data of the to-be-detected rivet-free connection product, and screening the joint bottom thickness data of the to-be-detected rivet-free connection product by using the standard reaching range to obtain a mechanical locking standard reaching joint corresponding to the joint bottom thickness data in the standard reaching range; and obtaining a fracture morphology image of the mechanical ...

Low-nitrogen-emission three-return-stroke gas-fired boiler

The low-nitrogen-emission three-return-stroke gas boiler comprises a box body, a heat insulation plate is fixedly connected to the middle position of one side of the box body, a water storage tank is fixedly connected to the side, away from the box body, of the heat insulation plate, a water adding device is fixedly connected to one side of the top end of the water storage tank, and a top cover is fixedly connected to the top end of the box body. One side of the top end of the top cover is fixedly connected with a tail gas outlet, one side of the tail gas outlet is fixedly connected with a gas returning opening, the bottom end of the side, away from the gas returning opening, of the tail gas outlet is fixedly connected with an adsorption box, and the bottom end of the box body is fixedly connected with a combustion furnace body. The working time is shortened, a novel return pipeline is arranged, the heat utilization efficiency is improved, the production efficiency is improved, the production ...

Pipipemidic acid-salicylic acid drug-drug salt and preparation method thereof

The invention relates to a pipemidic acid-salicylic acid drug-drug salt and a preparation method thereof. The preparation method comprises the following steps: mixing pipemidic acid, salicylic acid and an organic solvent, and preparing the pipemidic acid-salicylic acid drug-drug salt by a volatile solvent crystallization method, wherein the structural formula of the drug-drug salt is shown in the specification; mixing pipemidic acid and salicylic acid, adding an organic solvent, and heating to form a clear solution; cooling and volatilizing the solvent until the total volatilization amount of the solvent accounts for 80-90% of the volume of the initial organic solvent to obtain crystal mush; filtering, and drying a filter cake at 40-60 DEG C; the pipemidic acid-salicylic acid drug-drug salt has excellent wet stability and thermal stability and is remarkable in solubilizing effect, the antibacterial performance is improved through the synergistic antibacterial effect of pipemidic acid and ...

Food feeding bag

The utility model discloses a food feeding bag contains the bag body that is used for the splendid attire to feed food matter, is provided with the filling opening who is used for the input to feed food matter on the bag body, still contains high temperature alarm, connecting pipe to and feed and eat the nipple, wherein, the connecting pipe is used for connecting feeding eats the nipple and the bag body, high temperature alarm sets up in the connecting pipe outside for measure the temperature of feeding food matter, and carry out audible alarm when the temperature of feeding food matter exceedes the warning predetermined value. The utility model discloses a set up high temperature alarm, can ensure to feed the temperature of food matter in eating the nursing to feeding of old person, prevent to scald, improve nursing safety nature. In addition, set up the leak protection valve inside the connecting pipe, can prevent to feed the excessive of food matter or spill, ensure the health, avoid ...

METHOD FOR WASTEWATER TREATMENT AND THE TREATMENT SYSTEM THEREOF, AND METHOD FOR THE PREPARATION OF A MOLECULAR SIEVE AND THE PREPARATION SYSTEM

Antiseptic paper containing natural mineral powder and making method thereof

The invention provides antiseptic paper containing natural mineral powder. The antiseptic paper has the fixed quantity of 60+/-2 g/m<2>, the quantitative breadth difference of no more than 5%, the tensile strength of MD4.0/CD2.0 kN/m, and the moisture content of 5-8%, and stellerite powder remained in the paper accounts for 15-20% of the paper by weight percentage; and with respect to the sterilization performance, the antiseptic paper can be used for killing no less than 60% of escherichia coli/staphylococcus aureus/candida albicans can be inhibited. The making method of the antiseptic paper comprises the following steps of weighing raw material components of 50-80% of paper pulp, 19-49% of zeolite powder, 0.2% of softening agent and 1% of retention aid according to weight percentage; and with adoption of a wet paper making process and equipment, mixing and pulping cotton pulp, bleached softwood kraft pulp and bleached hardwood kraft pulp, adding the softening agent and the 800-mesh stellerite ...

Placenta stem-cell anti-tumor vaccine, preparation method and application thereof

The invention relates to a biomedical engineering technology, in particular to anti-tumor vaccine prepared from placenta stem cells, a preparation method and application thereof. In the invention, the vaccine is prepared by saving the placenta stem cells after being cultured for 8 generations in small freezing tubes, and each small freezing tube contains 5*105 (200Mul) placenta stem cells. The preparation method of the vaccine comprises the following steps: (1) treating a placenta tissue; (2) acquiring the placenta stem cells; (3) culturing the placenta stem cells and sub-culturing for 8 times; and (4) preparing the placenta stem-cell anti-tumor vaccine. The invention provides a cell biological preparation which have an effect on vaccine defense before establishing tumors so that an organism generates a specific immune antibody and sensitized lymphocytes on tumor stem cells, and inhibit growth and migration of the tumor stem cells to obtain the cell biological preparation for blockingup ...

Zinc-modified aluminum sol as well as preparation method and application thereof

The invention relates to the field of aluminum sol for catalytic cracking catalysts, and discloses zinc modified aluminum sol as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) carrying out first contact reaction on a zinc source and first acid at the temperature of 20-90 DEG C; (2) at the temperature of 50-80 DEG C, carrying out second contact reaction on the feed liquid obtained in the step (1) and a first aluminum source, and then adding second acid to carry out third contact reaction; and (3) carrying out fourth contact reaction on the feed liquid obtained in the step (2) and a second aluminum source at the temperature of 60-80 DEG C to obtain the zinc modified aluminum sol. The prepared zinc-modified aluminum sol product is used as a binder of a catalyst, has better binding performance, can improve the catalytic activity of the catalyst in a heavy oil cracking reaction, and effectively improves the yield of BTX and low-carbon ...

Drug spectrum data analysis method and device based on deep learning

The invention provides a drug spectrum data analysis method and device based on deep learning, and relates to the technical field of drug analysis, and the method comprises the following steps: obtaining first information and second information; performing feature fusion processing on the historical spectrum data and the structure information to obtain third information; performing clustering processing on the third information to obtain fourth information; a preset deep learning mathematical model is trained according to the fourth information, and a drug interaction prediction model is constructed; and performing analysis according to the drug interaction prediction model and the second information to obtain an interaction evaluation result of the new drug. According to the drug spectrum data analysis method based on deep learning, the historical spectrum data, the drug structure data and the drug interaction information are fused, the drug spectrum data analysis method based on deep ...

Collecting method and storage mode technology of lead denounce quantum elements

The invention relates to a collecting method and storage mode technology of lead denounce quantum elements, in particular to a technology for collecting and storing lead denounce quantum element resources which are massively distributed in airspace and aerospace to be taken as new substitute energy resources for standby. The collection and storage production process provided by the invention is extremely easy and safe and is exactly as the example in a diagram that a molecular closed container 1 made of a solid atomic wall material is butted with a gravitation mechanical pump 4 to eliminate molecules in the container, thereby enabling the lead denounce quantum elements outside the container to be absorbed into the container to form a condensed state of a strong gravitation field. When a gravitation monitoring meter 2 shows that the purity of the elements in the container reaches the standard, a stop valve 3 is turned off, the gravitation pump is switched off, and the needed lead denounce ...

Building building flood control door

The utility model relates to a door technical field for building, concretely relates to building building flood control door. Building building flood control door includes the door frame, be provided with in the door frame to the doorstep with lower of lieing in lower end to the doorstep, be connected with the door frame by the hinge respectively with lower to the doorstep, call to opening the house inboard, open to outside the house for lower, xia men left and right sides edge is equipped with vertical sealing respectively, lower downside edge is equipped with horizontal sealing, is provided with the sealing strip between sealing and door frame, when closing down, the sealing strip is compressed tightly between sealing and door frame to clearance between sealed sealing and the door frame stops that the water logging in the external world is advanced indoorly. Compare with traditional flood control door, this utility model has realized door and the integration of flood control function, ...

Handheld fast quick test table appearance

Handheld fast quick test table appearance, including the host computer, set up detecting element in the host computer, the surface of host computer sets up measuring time display screen and error display screen, the preceding both sides lower part of host computer sets up starting switch and error adjustment switch respectively, the lower part of host computer sets up handheld handle, the upper portion of host computer sets up live wire measuring probe and zero line measuring probe, live wire measuring probe and zero line measuring probe connect detecting element respectively, measuring time display screen and error display screen are connected to detecting element's output, detecting element is connected respectively to starting switch and error adjustment switch. Adopt photoelectricity collection, the full -automatic conversion of microcomputer to handle, the precision is high, and is quick, and it only needs to measure every ammeter - minute, it is simple and convenient, need not work ...

Traditional Chinese medicine gynecological leg support with rapid adjusting function

The invention relates to the technical field of medical instruments, in particular to a traditional Chinese medicine gynecological leg support with a rapid adjusting function. The device comprises a movable table, a distance limiting plate, a lifting body, a corner body and a fixed body. By arranging a lifting body and a corner body, a patient moves legs and drives a vertical pipe and a horizontal plate to rotate, so that the posture of the legs of the patient is adjusted, when the posture of the legs of the patient is adjusted and the legs of the patient are unfolded, a clamping hook at the top of a distance limiting plate is clamped with the top of a side plate, and a connecting rod clamped with the middle of the distance limiting plate drives a first inserting rod to be inserted into a through opening; the sliding plate is prevented from sliding in the plate opening, and the second insertion rod is driven to be inserted into the bolt for synchronous fixation, so that the legs of the ...

Grinding and polishing machine for inner wall of large square medical stainless steel tank and control method of grinding and polishing machine

The invention discloses a grinding and polishing machine for the inner wall of a large square medical stainless steel tank. A sliding rail and a single-row chain are fixed to a base. The driving spindle is rotationally connected to the middle of the base; the driving motor is fixed on the base and is in transmission connection with the driving spindle; the bottom disc guide rail mechanism, the middle disc mechanism and the top disc mechanism are sequentially connected to the driving main shaft through keys from bottom to top. The multiple grinding and polishing sleeve components are evenly distributed on the bottom disc guide rail mechanism, and the bottoms of the grinding and polishing sleeve components are matched with the single-row chain through chain wheels and limited through sliding rails. The multiple supporting shaft components correspond to the grinding and polishing sleeve supporting components one to one, are fixed to the bottom disc guide rail mechanism and are used for supporting ...

Device and method for detecting relation between bone marker and coronary artery calcification

The invention discloses a device and a method for detecting the relationship between bone markers and coronary artery calcification, bone marker samples formed in human bones are taken out and put into a bone marker sample reagent tube, the masses of the bone marker samples in the bone marker sample reagent tube are different, then centrifugal layering is carried out, and the coronary artery calcification relationship between the bone markers and the coronary artery calcification is obtained. The method comprises the following steps: extracting a bone marker sample from a coronary artery, taking out a dyeing layer from the bone marker sample, filtering a calcium substance in the blood sample in the coronary artery through a calcium substance pre-filtering tank, extracting the calcium element through a calcium element extraction tank, and inputting the calcium element into a calcification analyzer through a calcium element output pipe for analysis. The method comprises the following steps ...

Preparation of molecular sieve and treatment of silicon-containing wastewater therefrom

A method for the treatment of silicon-containing wastewater from the preparation of a molecular sieve or a catalyst includes the step of contacting the silicon-containing wastewater with at least one acid or at least one alkali, so that at least a part of the silicon elements in the silicon-containing wastewater form a colloid. A mixture containing a colloid is thus obtained. A silicon-containing solid phase and a first liquid phase are produced by a solid-liquid separation. A solid phase and a second liquid phase are produced by a solid-liquid separation after at least a part of the metal elements in the first liquid phase form a precipitate. At least a part of the second liquid phase is subjected to electrodialysis to produce an acid liquor and/or an alkali liquor. The silicon-containing solid phase can be used as the raw material for a molecular sieve synthesis.

Medical nursing hot compress device

The invention provides a medical nursing hot compress device, and relates to the field of medical equipment. Comprising an outer shell, the inner wall of the outer shell is connected with a plurality of connecting columns, the connecting columns are connected with an inner shell, the gap between the outer shell and the inner shell is smaller than 2.8 mm, the end face of a lower opening of the inner shell abuts against a gauze bag, the lower portion of the gauze bag abuts against a fixing ring connected to the outer shell in a threaded mode, a plurality of thermoelectric refrigeration pieces are connected into the inner shell, and the thermoelectric refrigeration pieces are electrically connected with a control panel connected to the inner shell. A heating cavity is in threaded connection in the inner shell, and a steam outlet penetrating through the inner shell is connected to the middle of the heating cavity; liquid medicine can be evenly guided into a treatment part through the capillary ...

Non-carrier yellow brass catalyst for preparing stephanoporate carbon fiber, preparation and process of using

The invention discloses a carrier-free copper zinc alloy catalyst for preparing multiporous carbon fiber and a preparation method and a use method thereof. The catalyst consists of oxides of copper metal and zinc metal, wherein, the mol ratio of copper to zinc is 9 to 1. The preparation method comprises the following steps that: according to the mol ratio, metal salt of the copper, metal salt of the zinc and citric acid equivalent to a mol number of the copper are taken to be mixed and dissolved in distilled water to prepare a transparent solution, and then the transparent solution is placed into a porcelain boat and is heated in a muffle furnace at a temperature of between 500 and 800 DEG C to produce the catalyst. The preparation of the multiporous carbon fiber is performed in a fixed bed gas continuous-flow reactor. No carrier is added in the copper zinc alloy catalyst, the catalyst consists of the oxides of the copper metal and the zinc metal, and no alkali metal needed for the prior ...

PREPARATION OF MOELCULAR SIEVE AND TREATMENT OF SILICON-CONTAINING WASTEWATER THEREFROM

A method for the treatment of silicon-containing wastewater from the preparation of a molecular sieve or a catalyst includes the step of contacting the silicon-containing wastewater with at least one acid or at least one alkali, so that at least a part of the silicon elements in the silicon-containing wastewater form a colloid. A mixture containing a colloid is thus obtained. A silicon-containing solid phase and a first liquid phase are produced by a solid-liquid separation. A solid phase and a second liquid phase are produced by a solid-liquid separation after at least a part of the metal elements in the first liquid phase form a precipitate. At least a part of the second liquid phase is subjected to electrodialysis to produce an acid liquor and/or an alkali liquor. The silicon-containing solid phase can be used as the raw material for a molecular sieve synthesis.

Maize planter with adjustable interval

The utility model discloses a maize planter with adjustable interval, including support, handle, walking wheel, interior barrel, outer barrel, closing plate, drive plate, lower hopper, inlet pipe, unloading pipe, planting wheel, spout, spacing knob, pillar, discharge gate, branch, feed inlet, shovel board. The beneficial effects of the utility model are that: the utility model discloses a plantercan change the number of shoveling the board according to planting the interval, and work shovel board intervals many more are more little, the booth distance is big more for work shovel board, and accommodation process is simple, quick to still the accessible changes the planting demand that the extension elongation that shovels the board changes the dig pit degree of depth, effectual adaptationdifferent cultivars maize, fill full maize kind in the unloading pipe, rotate when locate to the discharge gate when branch, alright make the seed fall into the hole that the shovel board dug, the realization ...

Method for preparation of hollow spherical cadmium sulfide nanocrystalline

The invention discloses a method for preparing a hollow spherical cadmium sulfide nano-crystal. The method adopts a hydro-thermal method, and comprises the following steps of: firstly, adding sodium dodecyl sulfonate and hexadecyl trimethyl ammonium bromide into deionized water, sufficiently stirring the mixed solution until the sodium dodecyl sulfonate and the hexadecyl trimethyl ammonium bromide are completely dissolved in the water to form a transparent solution, and adding cadmium chloride and thioacetamide into the transparent solution to stir and mix evenly; then, adding the mixed solution in a hydrothermal reaction kettle, sealing the hydrothermal reaction kettle at a temperature of between 80 and 160 DEG C for 6 to 24 hours; opening the reaction kettle after the reaction kettle is naturally cooled to room temperature; and scrubbing and precipitating the reacted mixed solution by the deionized water and absolute ethyl alcohol, and centrifugally filtering and drying the precipitate ...

Self feed back intelligence earth leakage protection controlling means

The utility model provides a self feed back intelligence earth leakage protection controlling means belongs to earth -leakage protector centralized control device field, including earthleakage protective equipment, earthleakage protective equipment's measuring junction is connected to the test signal output of earth leakage protection tester, the earth leakage protection tester is equipped with control chip and communication module, the earth leakage protection tester is connected to power supply communication network through communication module, the control signal that control chip received master server uploads master server with the test result of earth leakage protection tester simultaneously, the communication end of earth leakage protection tester is connected to the communication end of earth leakage protection device, receive earthleakage protective equipment's signal, can carry out the cycle test to all residual current operated protec tive device, guaranteed that electric wire ...

Hydraulic-electric control system for picking Chinese wolfberries

A hydraulic-electric control system for picking Chinese wolfberries comprises an oil tank, a pumping subsystem, a valve control subsystem and an executing mechanism, wherein the pumping subsystem comprises a first oil delivery pump, a second oil delivery pump, a third oil delivery pump, an oil filter and a first motor; the first oil delivery pump, the second oil delivery pump and the third oil delivery pump are connected in series and then connected with the first motor; one end of the oil filter is connected with the oil tank through an oil conveying pipe, while the other end of the oil filter is connected with the first oil conveying pump, the second oil conveying pump and the third oil conveying pump through a three-way oil conveying pipe; the valve control subsystem is assembled with conveying pipelines of the first oil conveying pump, the second oil conveying pump and the third oil conveying pump; the executing mechanism is connected with the valve control subsystem through the oil ...

Highway double-guide-beam bridge erecting machine and turning method

The invention discloses a highway double-guide-beam bridge erecting machine and a turning method. The bridge erecting machine comprises longitudinal guide beams, a front support leg, a rear support leg and a rear propping device, wherein the longitudinal guide beams comprise two rows of parallel space trusses with the same structure and size, a front frame is installed between the front end partsof the two rows of space trusses, an upper rear cross beam is installed between the rear end parts, and the front frame and the upper rear cross beam are used for integrating the two rows of space trusses into a whole. The turning method comprises the following steps of: (1) preprocessing the upper rear cross beam; (2) removing part of rods of the front frame; (3) installing the preprocessed upper rear cross beam; (4) removing and hoisting the front support leg; (5) installing a removed lower front cross beam; (6) interchanging the front support leg and the rear support leg; and (7) subsequently ...

High performance liquid chromatography method for determining related substances in nicardipine hydrochloride bulk drug

The invention provides a high performance liquid chromatography for determining related substances in a nicardipine hydrochloride bulk drug, which adopts a chromatographic column with octadecylsilane chemically bonded silica as a filler, adopts a mobile phase A consisting of 3.5 g/L sodium perchlorate monohydrate and a 1ml triethylamine-containing aqueous solution with the pH adjusted to 2.0 by perchloric acid and a mobile phase B consisting of acetonitrile-methanol (70: 30), gradient elution is carried out, and the content of the related substances in the nicardipine hydrochloride bulk drug is measured. According to the method, related substances including process impurities, forced degradation impurities and the like in the nicardipine hydrochloride raw material medicine can be effectively separated, a gradient elution method is adopted for analysis, and the method is good in reproducibility, high in specificity, high in sensitivity and easy and convenient to operate.

Preparation method and application of heterogeneous electro-Fenton bifunctional cathode material

The invention discloses a preparation method and application of a heterogeneous electro-Fenton bifunctional cathode material. The preparation method comprises the following steps: accelerating Fe < 3 + > etching through chloride ions, doping foamed nickel, and growing Fe < 3 + >-doped beta-Ni (OH) 2 nanosheets on the foamed nickel in situ. In a heterogeneous electro-Fenton system, the foamed nickel and Fe < 3 + > doped beta-Ni (OH) 2 nanosheet can be simultaneously used as a bifunctional cathode catalyst for H2O2 production through electrochemical oxygen reduction and Fenton reaction. According to the catalyst growth mode, efficient combination of an electro-Fenton cathode and a heterogeneous catalyst is achieved, the defect that traditional Fenton sludge is large in yield is overcome, and meanwhile the risk of H2O2 transportation and storage is avoided; the heterogeneous electro-Fenton cathode has a nanosheet morphology, a large number of active sites are provided, and doping is beneficial ...

Method for preparing Bi2Te3/carbon nanotube composite material

The invention discloses a method for preparing a Bi2Te3/carbon nanotube composite material, which comprises the following steps: dissolving acidized carbon nanotubes into aqueous solution of surfactant EDTA, performing ultrasonic dispersion, and adding alkali to adjust the OH- concentration of the solution to between 0.1 and 1mol/L; in a determined molar ratio of Bi to Te of 2:3 through chemical composition analysis of Bi2Te3, dissolving a compound containing Bi element, a compound containing Te element or a Te simple substance into the aqueous solution, and adding a reducing agent NaBH4 with stirring to obtain mixed solution; and stirring and heating the mixed solution in a water bath, centrifugally separating, washing and collecting solid product after the reaction is finished, and drying. In the Bi2Te3/carbon nanotube composite material prepared by the method, the size of Bi2Te3 particles is about between 10 and 20nm; and the Bi2Te3/carbon nanotube composite material combines advantages ...

CA/PANI/ZnO nano material, gas sensitive element, QCM ammonia gas sensor and preparation method and application of CA/PANI/ZnO nano material

The invention relates to the technical field of ammonia gas sensors, in particular to a CA/PANI/ZnO nano material, a gas sensitive element, a QCM ammonia gas sensor and a preparation method and application thereof. Dissolving CA in a mixed solution of acetone and DMAc to obtain an electrostatic spinning precursor solution; and obtaining the white CA nanofiber through an electrostatic spinning process. CA/PANI nanofibers are prepared through an oxidative polymerization method, ZnO nanoflowers prepared through a one-step thermal solvent method and the CA/PANI nanofibers are doped and mixed for 24 h, and the CA/PANI fibrous nanomaterial assisted by the ZnO nanoflowers is obtained. The CA/PANI/ZnO composite nano material is coated on a silver electrode on the surface of a quartz crystal microbalance through a spin-coating method to prepare the gas sensitive sensor. The QCM gas sensor prepared based on the method disclosed by the invention has very high sensitivity to ammonia gas, has the advantages ...

NON-COMBUSTION PNEUMATIC-VACUUM ENGINE

An engine includes cylinders using pressure differences to motivate the pistons. Each cylinder has a first outlet in its' first end, the first outlet being coupled to a vacuum chamber via a first valve and a first conduit, a second outlet in the cylinder's first end, the second outlet being coupled to an air pressure chamber via a second valve and a second conduit, a third outlet in the cylinder's second end, the third outlet being coupled to the vacuum chamber via a third valve and a third conduit, and a fourth outlet in the cylinder's second end, the fourth outlet being coupled to the air pressure chamber via a fourth valve and a fourth conduit. The valves are electrically controlled by a processor. When the first and fourth valves are turned on, the piston is pulled forward by a pressure difference created by the vacuum chamber and is at the same time pushed forward by a pressure difference created by the air pressure chamber. When the piston reaches its maximum length, the first and fourth valves are turned off, and the second and third valves are turned on, and the piston is pulled backward by a pressure difference created by the vacuum chamber and is at the same time pushed backward by a pressure difference created by the air pressure chamber. When the piston reaches its minimum length, the second and third valves are turned off, and the first and fourth valves are turned on. 1. An engine using air pressure and vacuum , comprising:a dual-function compressor coupled to a vacuum chamber and an air pressure chamber, said compressor maintaining said chambers to predetermined pressure values;one or more cylinders, each of which housing a piston coupled to a single crankshaft which transforms reciprocating linear motion into rotation;wherein each of said cylinder has a first outlet in its first end, said first outlet being coupled to said vacuum chamber via a valve and a first conduit; ["a first outlet in said cylinder's first end, said first outlet being coupled to ...

Parking lot parking management system based on Internet of Things

The invention discloses a parking lot parking management system based on the Internet of Things, relates to the technical field of parking management, and discloses an information acquisition module, a parking space special reserving module and an information display module, by arranging the parking space special reserving module, parking information of vehicles can be acquired, the vehicles difficult to park in lifting parking spaces are marked, and the parking space special reserving module is used for displaying the parking space special reserving module. After entering the parking lot, the position of the unoccupied common parking space is sent to the central controller of the vehicles, so that the situations that the vehicles cannot find the common parking space for a long time, time is wasted when the vehicles are parked on the lifting parking space, and passing of the vehicles in front of and behind the road is affected are avoided.

Method of preparing Bi2Te3 nano-slice

Single cell on-line chemical derivatization mass spectrometry device

The invention provides an on-line photochemical derivatization mass spectrometry device for single cells. The system comprises a cell sample injection power unit, a cell liquid storage tank, a micro-fluidic chip, a derivatization reagent injection device and a metabolite component monitoring unit, the micro-fluidic chip is provided with a snakelike channel, the output end of the cell sample introduction power unit is connected with an inlet of the snakelike channel of the micro-fluidic chip through the cell liquid storage tank, and the cell sample introduction power unit is used for providing forward power for cells; the output end of the micro-fluidic chip is connected with the derivatization reagent injection device, and the derivatization reagent injection device is used for enabling a derivatization reagent to react with single cells and sending the derivatization reagent to the metabolite component monitoring unit under the pushing of the cell sampling power unit, so that the ionization ...

Power supply device with funnel-shaped guide hole

The invention provides a power supply device with funnel-shaped guide hole. The power supply device comprises a main body (9) and a plug (6) inserted into the socket of the main body (9); a locking and unlocking motor (91) is arranged in the main body (9); the rotor of the locking and unlocking motor (91) is in power connection with a screw (95); the screw (95) is in screw-thread fit with a screw hole formed in a movable part (8) in the main body (9); the stator of the locking and unlocking motor (91) is fixedly connected with a power supply conducting rod (74) which goes through a sliding hole formed in the movable part (8) in sliding fit; the power supply conducting rod (74) is combined with a power supply hole (61) formed in the plug (6) inserted into the jack of the main body (9) to supply power.

Screening method for pesticide, veterinary drug and chemical pollutant residues in serum

The invention discloses a novel method for screening pesticide and veterinary drug and chemical pollutant residues in serum based on two-dimensional liquid chromatography-high resolution mass spectrometry. A device involved in the method comprises three high performance liquid chromatography infusion pumps, an automatic sample injector, a detector, three two-position six-way valves, a trapping column and two liquid chromatography analysis columns. The method is characterized in that pesticide and veterinary drugs and chemical pollutants with different chemical properties in a serum sample subjected to efficient concentration pretreatment are separated and transferred by introducing a trapping column, and subsequent parallel column analysis aiming at a strong polar group and a non-polar group respectively is combined; and exogenous agricultural, veterinary and chemical pollutants in a strong polar group and a non-polar group can be effectively screened at the same time through one-time sample ...

A TREATMENT METHOD FOR SILICON-CONTAINING WASTEWATER AND THE UTILIZATION METHOD THEREOF, AND A METHOD FOR PREPARING A MOLECULAR SIEVE AND THE SYSTEM THEREOF

Method for carrying out ion exchange on solid matters containing exchangeable ions

The invention provides a method for carrying out the ion exchange on solid matters containing exchangeable ions, which comprises the following steps: carrying out the bipolar membrane electrodialysis on a solution containing ions to prepare acid liquid and alkali liquid; making the solid matters containing the exchangeable ions in contact with the acid liquid or the alkali liquid, and carrying out the ion exchange to obtain the pulp of the solid matters through the ion exchange; carrying out the solid-liquid separation on the pulp of the solid matters through the ion exchange to obtain a solid phase and a liquid phase; and recycling the liquid phase obtained in the step of the solid-liquid separation as the solution containing the ions in the step of the bipolar membrane electrodialysis, wherein the negative ion concentration or the positive ion concentration in the solution containing the ions in the step of the bipolar membrane electrodialysis is 0.01-10 mole/liter. According to the method ...

Preposed denitrification aeration biofilter and method for treating sewage

The invention discloses a preposed denitrification aeration biofilter and a method for treating sewage and belongs to the field of wastewater treatments. The biofilter comprises a DN tank body and a CN tank body and further comprises a first water storage tank body, a second water storage tank body and an aeration pump, wherein a first water storage tank inner cylinder is placed in the middle of the first water storage tank body; an annular water storage tank buffering groove is arranged at the outer side of the first water storage tank inner cylinder; the height of the water storage tank buffering groove is lower than that of the first water storge tank inner cylinder; and the area between the side wall of the first water storage tank body and the first water storge tank inner cylinder is a first water storage tank storage area. As the water flowing direction of the DN tank is upward, suspended solids are prevented from concentrating in a filler layer, the dirt containing rate of a filler ...

Intelligent greenhouse

A planting space is defined by the support body and the ground, the support body is covered with the transparent covering body, the two ends of the support body are each provided with a supporting plate, at least one supporting plate is provided with a door opening, and a first motor is installed at one end of the top of the outer side of the support body; one end of a rotating rod is connected with an output shaft of the first motor, the other end of the rotating rod is installed at the other end of the top of the support body through a bearing seat, a plurality of take-up rollers capable of rotating along with the rotating rod are installed on the rotating rod at intervals, and a traction rope is wound around each take-up roller. A clean water tank and a liquid medicine tank communicated with the clean water tank through a first valve are arranged on the outer side of one end of the support body, a waste water tank is arranged on the outer side of the other end of the support body, and ...

A antidetonation isolating device for building friction non - of foundation structure is swayd

The utility model discloses an antidetonation isolating device for building friction non - of foundation structure is swayd, including hook -like of concave surface base, rotatory hammering block and disc, rotatory hammering block is located the centre of concave surface base, and the hook -like piece of disc is located rotatory hammering block, the bottom surface of concave surface base is the plane, is located subaerially, the upper surface that the disc is hook -like is the plane, and the building foundation structure is located on it, the utility model discloses simple structure, in the spot time of earthquake, rotatory hammering block is rotatory around the center in its arch or concave yield groove, and inconsistent with the rotation center of concave surface base, and both form the vibration of vertical direction, because the contact surface of high smoothness between concave surface base, hook -like three in rotatory hammering block and the disc for earthquake entrained water square ...

Black-smoke-free environment-friendly energy-saving boiler capable of fully combusting fuel

The utility model provides an environment-friendly energy-saving boiler capable of fully combusting fuel without black smoke, which comprises a combustion chamber, a homogeneous combustion frame is arranged in the combustion chamber, and one side of the combustion chamber is detachably connected with a quantitative material guide structure; a first water tank is detachably connected to the upper portion of the combustion chamber, a first drainage pipe is arranged on the lower portion of one side of the first water tank, a first electromagnetic valve is arranged on the first drainage pipe, a second water tank is arranged on the periphery of the outer side of the water tank, a first supporting frame is arranged below the second water tank, and the first supporting frame is detachably connected with the combustion chamber. A smoke exhaust pipe is arranged in the middle of the inner side of the first water tank, one end of the smoke exhaust pipe is detachably connected with a coil pipe, the ...

Boiler low-nitrogen combustion air volume adjusting equipment

The utility model provides boiler low-nitrogen combustion air volume adjusting equipment which comprises a box body, a top cover is fixedly connected to the top end of the box body, a display control panel is arranged on one side of the top end of the top cover, a motor control device is fixedly connected to the side, away from the display control panel, of the top end of the top cover, and a bottom cover is fixedly connected to the bottom end of the box body. A tail gas detection box is fixedly connected to one side of the top end of the bottom cover, a boiler tail gas connector is fixedly formed in the center of one side of the tail gas detection box, a gas distribution box is fixedly connected to the middle of one side of the top end of the bottom cover, and a nitrogen suction box is arranged in the center of the top end of the gas distribution box. And a gas inlet and a gas outlet of the boiler are controlled and adjusted, all-directional detection and control are achieved, adsorption ...

Highway double-guide-beam bridge erecting machine and turning method

The invention discloses a highway double-guide-beam bridge erecting machine and a turning method. The bridge erecting machine comprises longitudinal guide beams, a front support leg, a rear support leg and a rear propping device, wherein the longitudinal guide beams comprise two rows of parallel space trusses with the same structure and size, a front frame is installed between the front end parts of the two rows of space trusses, an upper rear cross beam is installed between the rear end parts, and the front frame and the upper rear cross beam are used for integrating the two rows of space trusses into a whole. The turning method comprises the following steps of: (1) preprocessing the upper rear cross beam; (2) removing part of rods of the front frame; (3) installing the preprocessed upper rear cross beam; (4) removing and hoisting the front support leg; (5) installing a removed lower front cross beam; (6) interchanging the front support leg and the rear support leg; and (7) subsequently ...

Get soil spade

The utility model provides a get soil spade, belongs to the instrument that fetches earth field. The problem of current geotome carry inconveniently, and the rate of accuracy of sampling is low is solved. It includes soil sample barrel, whip, variable -length handle and upper cover, and the one end of soil sample barrel is equipped with the blade that fetches earth, and the other end of soil sample barrel is fixed with the variable -length handle, the upper cover through the hinge with the blade rotary joint fetches earth, the whip is fixed in the soil sample barrel, is equipped with the clear glass who has the scale on the lateral wall of soil sample barrel, the variable -length handle is folding handle, rotation type handle or telescopic handle, the rotation type handle include dead lever and rotary rod, the surface of dead lever is equipped with the screw thread, the rotary rod is cylindrical structures, and the internal surface is equipped with the screw thread, the other end and the ...

A filtering controller for power supply system transfers magnetism

The utility model relates to a filtering controller for power supply system transfers magnetism can effectively solve relaxation phenomenon that condenser in use exists and the induction reactance characteristic that leads to because of the temperature variation and change, influences the problem of filtering effect, and the technical scheme of its solution is, circuit in casing and casing, casing week the edge be equipped with man -machine interface, communication interface, sample thief interface, IO output interface, PWM output interface, IO input interface, the circuit comprises microprocessor integrated circuit, microprocessor integrated circuit respectively with the casing on IO output interface, PWM output interface, IO input interface link to each other, the utility model discloses simple structure, it is novel unique, installation convenient to use, with low costs, effectual, economy and social are showing.

Anti-static self-exhaust protection adhesive tape and preparation method thereof

The invention provides an anti-static self-exhaust protection adhesive tape and a preparation method thereof. The anti-static self-exhaust protection adhesive tape successively comprises a base material (1), an adhesive layer (3) and a release film (4); and an anti-static layer (2) is arranged between the base material (1) and the adhesive layer (3). The anti-static self-exhaust protection adhesive tape possesses excellent anti-static performance, the anti-static performance also possesses excellent thermal stability, a defect of pollution caused by transference of ionic additives onto the surface of the anti-static self-exhaust protection adhesive tape is avoided, quick attachment can be realized when the anti-static self-exhaust protection adhesive tape is contacted with the surface of glass or a mirror plane, and the anti-static self-exhaust protection adhesive tape possesses self-exhaust performance.

Novel anti -electricity -theft batch meter

The utility model discloses a novel anti -electricity -theft batch meter, including metering box body, the spout has been seted up on metering box body's surface, metering box body's fixed surface isconnected with second outer box cover, the inner wall sliding connection of spout has the slider, first outer box cover of the one end fixedly connected with of slider, the other end of slider extendsto metering box body's inside, first outer box cover's inner wall is connected with metering box body's sliding surface. This novel anti -electricity -theft batch meter, the surperficial sliding surface with the slider who passes through the poker rod between first fixed block when can connect through the lock is connected the dual theftproof effect of completion, the theftproof performance of electric batch meter has been strengthened, can make when closing electric batch meter through the spring elasticity by the poker rod remain throughout with the sliding connection on slider surface, thesurface ...

Bending pressure test system for aviation pipeline connecting hoop

The invention provides an aviation pipeline connection hoop bending pressure test system, which comprises a constant pressure assembly, a test control assembly, a flow test assembly and a bending loading assembly, and is characterized in that the constant pressure assembly conveys a constant pressure air source to the test control assembly, and the test control assembly controls opening and closing of each valve by adjusting air pressure; the gas leakage amount of the aviation pipeline connecting clamp assembly in a test can be monitored in real time through the flow testing assembly, and the bending loading assembly is used for testing the bending pressure of a test piece. The test control assembly and the bending loading assembly are arranged in parallel, load and pressure can be controlled only by controlling opening and closing of a switch valve and a stop valve and loading an electric cylinder, the test load and pressure can be adjusted in real time according to test data fed back ...

Multi-functional glasses display system and method

The invention provides a multifunctional glasses display system and method. The multifunctional glasses display system comprises an information collection module used for acquiring vehicle driving information; the auxiliary function input module is used for collecting user display requirements; the information processing module is used for judging whether the vehicle driving information is screen display information; if not, the vehicle driving information is not received or recollected response information is sent to the information collection module; if yes, whether the information value included in the vehicle driving information is within the effective value range or not is judged; if yes, the vehicle driving information is calculated through vehicle preset information or a control system information processing algorithm, and a calculated value is obtained; classifying and packaging the calculation values to obtain packaged calculation values; the packaged calculation value is sent ...

Explosion-proof medicine taking mechanism with motor anti-vibration function

The invention discloses an anti-explosion type medicine taking mechanism with a motor anti-vibration function, and relates to the technical field of transportation or storage devices. The device comprises a workbench, a medicine distributing mechanism, a conveying mechanism, a material containing mechanism, an abutting mechanism, an anti-lifting mechanism and an anti-explosion treatment mechanism. The conveying end is covered with the anti-raising mechanism, the problem that gunpowder falls to the outside from the conveying mechanism is avoided, the piston assembly generates negative pressure through vibration force of vibration equipment, the negative pressure effect is transmitted to the anti-raising mechanism, the anti-raising mechanism absorbs the gunpowder thrown to the position above the conveying mechanism, and the gunpowder is conveyed to the conveying end through the conveying mechanism. According to the anti-explosion device, the explosion risk caused by collision when the gunpowder ...

Multichannel fertilizer distributor with controllable rate of fertilizer application is planted to maize

The utility model discloses a multichannel fertilizer distributor with controllable rate of fertilizer application is planted to maize, include shell, motor, connecting axle, drive wheel, follow driving wheel, trailing bar, fertilizing channel, fixed plate, soil loosening mechanism, belt, rabbling mechanism, fertilization room, regulating plate, pivot, adjust knob, clamping screw, battery, push rod and switch. The beneficial effects of the utility model are that: the utility model discloses an adjust knob rotates the size that thereby the rate of fertilizer application was adjusted to the regulating plate, soil loosening mechanism's use has improved the oxygen gas content of soil, the efficiency of corn growth is improved, soil loosening mechanism drives the rabbling mechanism and rotatesthe effectual jam that prevents fertilizing channel, make fertilization uniformity simultaneously, the fertilization room is the trapezium structure automatic unloading of being convenient for, the use ...

Environmental protection concrete road surface structure of supply groundwater

The utility model discloses an environmental protection concrete road surface structure of supply groundwater, the concrete road surface structure includes filtration layer and concrete layer. The filtration layer is located on the clay layer, concrete layer locates the top on filtration layer. The inside stiffener that increases concrete layer intensity that is equipped with of concrete layer. The inside surface drainage pipes that still are equipped with many receipt earth's surface water of concrete layer. The filtration in situ is equipped with a plurality of filtration pipelines, filtration pipeline intercommunication the water that the surface drainage pipe will come from the surface drainage pipe releases to the filtration layer, and the clay in situ runs through there is the pipeline of catchmenting, and the pipeline that just catchments is followed the filtration layer and is extended to the clay layer and get into in the chiltern layer. The utility model discloses when keeping ...

Aspergillus niger proline protein endopeptidase and preparation method thereof

The invention relates to Aspergillus niger proline-specific endoprotease and the preparation method thereof, which belong to the field of genetic engineering and enzymology. The Aspergillus niger proline-specific endoprotease is selected from amino acid sequence of Aspergillus niger proline-specific endoprotease with a sequence code of SEQ ID No.2, wherein the amino acid sequence has nucleotide sequences represented by the first to the 1,581 in SEQ ID No.1, and has polypeptides of amino acid sequence represented by SEQ ID No.2. Test shows that haze protein bands with molecular weight of 8to 14 kDa are disappeared completely after SDS-polyacrylamide gel electrophoresis detection of beer protein added with PEP, which shows that the haze activity protein rich in proline residues is hydrolyzed completely by PEP, and primarily testifies that proline-specific endoprotease can specifically cut protein and proline residues at carbon terminal of a peptide chain, and can eliminate cold haze substance ...

Metal workpiece surface flatness detection device

The invention discloses a metal workpiece surface flatness detection device, which belongs to the technical field of stamping part surface detection, and comprises a shell, a control device is arranged on the shell, a conveying mechanism is arranged in the shell, a material distribution mechanism is arranged at the input end of the conveying mechanism and is used for controlling the feeding quantity of workpieces, and a linkage fixing mechanism is arranged on the conveying mechanism and is used for fixing the workpieces. The conveying mechanism is arranged on the base and used for driving the workpiece to move, the linkage fixing mechanism and the conveying mechanism move synchronously and used for fixing the workpiece to the conveying mechanism, a cleaning and dyeing mechanism and a detection device are further arranged above the conveying mechanism, the cleaning and dyeing mechanism is used for cleaning and dyeing the surface of the workpiece, and the detection device is used for detecting ...

Soil infiltration capacity sampling device

Soil infiltration capacity sampling device relates to a soil infiltration capacity sampling device, the utility model discloses an it than lower, is not suitable for the problem than arid area to solve the present device collection efficiency of gathering farmland infiltration water sample. The utility model discloses a water gathering tube, roating seat, aqueduct, support, retaining plug, water catch bowl and stores pylon are equipped with the infiltration hole on the water gathering tube lateral wall, the inside packing has the infiltration material, and the water gathering tube is installed on the roating seat, and it is rotatory that the roating seat passes through the output shaft drive of motor, the one end intercommunication of water gathering tube and aqueduct, and the main part of the other end of aqueduct is passed through the retaining plug and is fixed on the last horizontal pole of support, is fixed with the one stores pylon on the two side lever of support respectively, and ...

METHOD FOR WASTEWATER TREATMENT AND THE TREATMENT SYSTEM THEREOF, AND METHOD FOR THE PREPARATION OF A MOLECULAR SIEVE AND THE PREPARATION SYSTEM

Bridge type reclaimer dolly drive arrangement

The utility model discloses a bridge type reclaimer dolly drive arrangement, install on dolly girder (6) speed reducer (2), and motor (1) installs on speed reducer (2) and the output shaft of motor (1) and the input shaft rigid connection of speed reducer (2), the output shaft and main shaft (4) the rigid connection of speed reducer (2). The utility model discloses a direct as an organic whole with dolly wheelset antithetical couplet with drive mechanism, the trolley frame is solved because the interference of production out of balance to the flexible beat error of bringing that drags of elimination, drive mechanism adopts motor, speed reducer, shaft coupling to be a trinity drive mechanism, cancellation assembly pulley, wire rope, the special hoist of reel adopt little wheel self to rotate and replace special hoist, this bridge type reclaimer dolly drive arrangement can not only play the drive effect, can play anti impact again, satisfies the dolly smooth running, and dry sound and vibration ...

Anti-seepage and leak-blocking construction method for excavation of subway foundation pit in soft soil area

The invention discloses an anti-seepage and leak-blocking construction method for excavation of a subway foundation pit in a soft soil area, which comprises the following steps: 1) joint pre-reinforcement construction of an underground continuous wall: constructing a pre-reinforcement structure of a high-pressure rotary jet grouting pile, guiding holes, grouting by a sleeve valve pipe, sealing the holes, guiding the holes again and pre-burying the sleeve valve pipe for standby; and 2) the excavation of the foundation pit and the anti-seepage and leak-blocking construction: using surface floating earth for clearing and using the encased steel plate reinforcement method for anti-leak treatment for the situations that joints of the underground continuous wall have defects definitely and riskpoints are positioned below the excavation surface of the foundation pit, adopting the hole-guiding cyanogen injection condensing method for blocking of leak points with slight water leakage situation, ...

Soil nitrogen regulation method after straw turnover

The invention relates to a soil nitrogen regulation method after straw turnover. According to the method, chemical fertilizers and compound fungal and bacterial fertilizers are applied after straw turnover, nitrogen content of soil is improved, by proceeding from reduction of crop planting cost and factors such as environments, yield is ensured, and usage of the chemical fertilizers is decreased. In order to achieve the purpose, the compound fungal and bacterial fertilizers comprise bacteria, fungi and ray fungi, the problem of limited decomposition capacity of a single microorganism for macromolecular substances with complicated structures such as cellulose, hemicellulose and lignin in straws is solved, and mixed bacteria cooperate with each other, depend on each other and have better activity and decomposition effects as compared with a single bacterium. An optimization scheme is provided for existing straw turnover, and the regulation method has an excellent reference value for popularization ...

Voice signal recognition system and method based on surface myoelectric signal

The invention discloses a voice signal recognition system and method based on a surface myoelectric signal; as the motion of the forearm corresponds to the motion modes of hands, wrists and elbows, the facial muscles correspond to different motion modes during speaking; and by acquiring the surface myoelectricity of the facial muscles, the corresponding muscle motion mode can be completely recognized from a signal characteristic, furthermore, the voice information is recognized. The voice signal recognition system based on the surface myoelectric signal comprises a voice signal acquiring module (1) connected with a voice signal preprocessing module, wherein the voice signal preprocessing module is connected with a voice signal separating module (3), the voice signal separating module is connected with a characteristic parameter extracting module (4), and the characteristic parameter extracting module is connected with a voice signal distinguishing module (5). The system and the method are ...

Ion-exchange process

A process for ion-exchanging an exchangeable-ion containing solid material, characterized in that said process include a bipolar membrane electrodialysis step, which comprises subjecting an aqueous ion-containing solution to a bipolar membrane electrodialysis to produce an acid liquid; an ion-exchange step, which comprises contacting the exchangeable-ion containing solid material with the acid liquid and conducting the ion-exchange to produce a slurry containing the ion-exchanged solid material; a solid-liquid separation step, which comprises subjecting the slurry containing the ion-exchanged solid material to a solid-liquid separation to produce a solid phase and a liquid phase, adjusting the liquid phase to a pH of 4-6.5, and subjecting the pH-adjusted liquid phase to a solid-liquid separation to produce a treatment liquid. Oxalic acid is used in at least one of the bipolar membrane electrodialysis step, the ion-exchange step, and the solid-liquid separation step.

Saline-alkali soil rice field recession circular ditch recycling system and method

The invention provides a saline-alkali soil paddy field recession circular ditch cyclic utilization system and method, and the method comprises the steps: a control system analyzes and determines the number of days of injecting a modifier into a paddy field by a saline-alkali improvement system and the number of times of salt leaching according to paddy field environment information collected by a data collection system, and analyzes and determines the field surface water level of injecting a water fertilizer into the paddy field by a water-fertilizer integrated system; the saline-alkali improvement system and the water and fertilizer integrated system inject a modifier or a mixed water and fertilizer formed by mixing a liquid fertilizer and irrigation water into the rice field through the rice field water layer regulation and control system, and the water enters the rice field water recession circular ditch; mixed water and fertilizer to be discharged in the water recession circular ditch ...

Process for preparing carbon nano-tubes filled by metal Zn

The invention discloses a method for preparing carbon nanotubes filled with metal Zn, which comprises the steps of dissolving water soluble salt of the metal Zn (used as a Zn source) in deionized water, preparing into a catalyst powder by a freeze-drying method, placing the catalyst powder into a chemical vapor deposition furnace, and allowing reaction with methane as a carbon source and nitrogen as a protective gas at 800-1,000 DEG C to obtain carbon nanotubes filled with the metal Zn. The inventive preparation method has the advantages of simple process, easy product purification, high yield, good effect, and applicability to industrial production.

Antiseptic paper containing natural mineral powder and making method thereof

The invention provides antiseptic paper containing natural mineral powder. The antiseptic paper has the fixed quantity of 60+/-2 g/m<2>, the quantitative breadth difference of no more than 5%, the tensile strength of MD4.0/CD2.0 kN/m, and the moisture content of 5-8%, and stellerite powder remained in the paper accounts for 15-20% of the paper by weight percentage. With respect to the sterilization performance, the 2h antiseptic experiment on the paper shows that, the antiseptic paper can be used for killing no less than 60% of escherichia coli/staphylococcus aureus/candida albicans can be inhibited. The making method of the antiseptic paper comprises the following steps of weighing raw material components of 50-80% of paper pulp, 19-49% of zeolite powder, 0.2% of softening agent and 1% of retention aid according to weight percentage; and with adoption of a wet paper making process and equipment, mixing and pulping cotton pulp, bleached softwood kraft pulp and bleached hardwood kraft pulp ...

Energy saver for environment-friendly gas-fired hot water boiler

The energy saver for the environment-friendly gas-fired hot water boiler comprises a first connecting box, a lifting type water tank is arranged in the first connecting box, and a coil pipe type waste heat utilization pipe is arranged in the middle of the inner side of the lifting type water tank; the two sides of the lower portion of the first connecting box are detachably connected with first rotating devices, the first rotating devices are detachably connected with a second water tank, the lower end of the lifting type water tank is slidably connected with an upper opening of the second water tank, an exhaust pipe is arranged in the middle of the second water tank, and the lower end of the coil pipe type waste heat utilization pipe is slidably connected with the exhaust pipe above. A combustion chamber is detachably connected below the exhaust pipe and at the lower end of the second water tank, and a first supporting frame is detachably connected to the outer side of the combustion chamber ...

Novel environment-friendly and energy-saving gas-fired boiler

The novel environment-friendly energy-saving gas boiler comprises an outer boiler body, a combustion furnace and an inner boiler body, the combustion furnace is detachably connected to the bottom of the outer boiler body, one side of the combustion furnace is detachably connected with a gas inlet pipe, a water inlet is formed in one side of the upper portion of the inner boiler body, and a water outlet is formed in one side of the lower portion of the inner boiler body. The upper portion of the outer pot body is slidably connected with a pot cover, the outer wall of the outer pot body is fixedly connected with a plurality of clamping mechanisms, the outer wall of the inner pot body is fixedly connected with a plurality of inserting rods, the inserting rods are slidably connected to the clamping mechanisms, and the upper portion of the inner pot body is fixedly connected with a transverse moving mechanism. The energy-saving and environment-friendly electric cooker has the advantages that ...

ION-EXCHANGE PROCESS

A process for ion-exchanging an exchangeable-ion containing solid material involves several steps. There is a bipolar membrane electrodialysis step, which involves subjecting an aqueous ion-containing solution to a bipolar membrane electrodialysis to produce an acid liquid. The process also contains an ion-exchange step, during which the exchangeable-ion containing solid material is contacted with the acid liquid to conduct ion-exchange to produce a slurry containing the ion-exchanged solid material. It further include a solid-liquid separation step, during which the slurry containing the ion-exchanged solid material is subject to a solid-liquid separation to produce a solid phase and a liquid phase. The pH value of the liquid phase is adjusted to 4-6.5. The pH-adjusted liquid phase is further subject to a solid-liquid separation to produce a treatment liquid. 1. A process for ion-exchanging an exchangeable-ion containing solid material , characterized in that said process comprises:a bipolar membrane electrodialysis step, which comprises subjecting an aqueous ion-containing solution to a bipolar membrane electrodialysis to produce an acid liquid;an ion-exchange step, which comprises contacting the exchangeable-ion containing solid material with the acid liquid and conducting the ion-exchange to produce a slurry containing the ion-exchanged solid material;a solid-liquid separation step, which comprises subjecting the slurry containing the ion-exchanged solid material to a solid-liquid separation to produce a solid phase and a liquid phase, adjusting the liquid phase to a pH of 4-6.5, and subjecting the pH-adjusted liquid phase to a solid-liquid separation to produce a treatment liquid;wherein the treatment liquid can replace at least a part of the aqueous ion-containing solution in the bipolar membrane electrodialysis step;wherein the aqueous ion-containing solution has an anion concentration or a cation concentration of 0.01-10 mol/L;wherein oxalic acid exists in ...

Method of preparing Bi2Te3 nano-slice

The invention discloses a method for preparing Bi2Te3 nanometer thin slice. The method adopts a technology of chemosynthesis with low temperature and wetness. Compound containing Bi are mixed with simple substance of Te in ionized water according to a proportion determined by the chemical constituents of final products, sufficient reducing agents and proper complexing agents are added, under the temperature of 95-110 DEG C, the mixture is stirred when the mixture is boiling, then the process of reacting is for 24-48 hours, then centrifugalization, washing and drying are carried out, and finally the method is completed. The shape is a polygon nanometer thin slice. The method has the advantages of simple technology and no addition of alkaline regulators, the obtained products have unified morphology, the shapes of the products are polygon nanometer thin slice, and the products have high purity, thus being capable of increasing the thermoelectric properties of Bi2Te3 base thermoelectric materials ...

Instrument for storing and automatically pushing syringes

The utility model discloses an instrument for storing and automatically pushing injectors. The instrument comprises a placing part and an overturning cover, the device is characterized in that a placing cavity is formed in the placing part; a plurality of spacing plates of which the spacing distance is greater than the diameter of a single injector and smaller than the diameters of two injectors are arranged in the placing cavity; an interval outlet communicated with the interval plate for moving out the injector is also formed in front of the bottom of the placement cavity; the width of the spacing outlet is equal to the spacing distance between the spacing plates; the height of the spacing outlet is slightly greater than the diameter of the injector, and a pushing structure for automatically resetting the injector falling into the bottom after the injector is pushed out is arranged behind the bottom of the spacing of the spacing plate and in the placing part; and a control structurefor ...

Anti-seepage and leak-blocking construction method for excavation of subway foundation pit in soft soil area

The invention discloses an anti-seepage and leak-blocking construction method for excavation of a subway foundation pit in a soft soil area, which comprises the following steps: 1) joint pre-reinforcement construction of an underground continuous wall: constructing a pre-reinforcement structure of a high-pressure rotary jet grouting pile, guiding holes, grouting by a sleeve valve pipe, sealing the holes, guiding the holes again and pre-burying the sleeve valve pipe for standby; and 2) the excavation of the foundation pit and the anti-seepage and leak-blocking construction: using surface floating earth for clearing and using the encased steel plate reinforcement method for anti-leak treatment for the situations that joints of the underground continuous wall have defects definitely and risk points are positioned below the excavation surface of the foundation pit, adopting the hole-guiding cyanogen injection condensing method for blocking of leak points with slight water leakage situation, ...

Novel zero gram stick of multi -functional high pressure

Novel zero gram stick of multi -functional high pressure, comprises an insulator spindle, the tip of insulator spindle sets up the inductive head, the upper portion installation LED lamp and the LED lamp switch of insulator spindle, LED lamp lower part sets up hemisphere type cover, the lateral part of hemisphere type cover can with the sliding tray cooperation of seting up on the insulator spindle, hemisphere type cover sub -unit connection pulling stick, the lower part of pulling stick sets up the hasp and turns round, it sets up the several mating holes to stimulate excellent lower part, the hasp is turned round and is passed the pulling stick, tip and mating holes cooperation that the hasp was turned round, the hasp is turned round and is stimulateeed and sets up the spring between the stick, the spring can keep the hasp to turn round cooperating with the mating holes. The utility model discloses can easily under weather such as night, cloudy day reliably use and operate zero gram stick ...

Method for performing ion exchange on molecular sieve containing exchangeable ions

The invention provides a method for performing ion exchange on a molecular sieve containing exchangeable ions. The method comprises the following steps of: performing dealumnization and/or silicon reinsertion on the molecular sieve containing the exchangeable ions to obtain a molecular sieve with high ratio of silicate to aluminum; performing bipolar membrane electrodialysis on ion-containing solution to obtain acid liquor; contacting the molecular sieve with high ratio of silicate to aluminum and the acid liquor and performing ion exchange to obtain slurry of the molecular sieve which is subjected to ion exchange; performing solid-liquid separation on the slurry of the molecular sieve which is subjected to ion exchange to obtain a solid phase and a liquid phase; and circulating the liquid phase obtained through solid-liquid separation to serve as ion-containing solution in the step of bipolar membrane electrodialysis, wherein the content of negative ions in the ion-containing solution ...

Wine producing area intelligent identification method and system

The invention discloses an intelligent identification method and system for a grape wine producing area, and the method comprises the following steps: collecting grape wine samples from different producing areas, randomly collecting at least three pieces of spectral data of the grape wine samples in a spiral descending manner, drawing a spectrogram, preprocessing the spectrogram, and determining the grape wine producing area according to the preprocessed spectrogram. Carrying out feature variable extraction and prediction classification on the spectrogram by utilizing an identification model to generate a traceability spectrogram; the method comprises the following steps: randomly collecting at least three spectral data of a to-be-identified wine sample in a spiral descending manner, drawing a spectrogram, and preprocessing the spectrogram to generate a to-be-identified spectrogram; according to the method, at least three pieces of spectral data of the wine sample are randomly collected ...

A TREATMENT METHOD FOR SILICON-CONTAINING WASTEWATER AND THE UTILIZATION METHOD THEREOF, AND A METHOD FOR PREPARING A MOLECULAR SIEVE AND THE SYSTEM THEREOF

Fertilizing method for reducing weight, improving efficiency, improving quality and increasing yield of cabbage

The invention provides a fertilizer application method for reducing weight, improving efficiency, improving quality and increasing yield of cabbage, and belongs to the technical field of crop nutrition and fertilizer application. The cabbage fertilization method comprises the following steps: calculating the fertilizer demand of the cabbage in the growth period according to the target yield, testing soil and carrying out formulated fertilization, and carrying out combined application of organic fertilizer and inorganic fertilizer. Applying 30% of an organic fertilizer nitrogen source and 70% of an inorganic fertilizer nitrogen source by taking the total nitrogen amount as a standard; inorganic fertilizer phosphorus and potassium sources are supplemented based on the application amount of the organic fertilizer phosphorus and potassium sources to meet the fertilizer requirement of the cabbage in the growth period. According to the fertilizing method, the content of nitrogen, phosphorus and ...

Electric vehicle anti-theft and tracking system and method based on zigbee

The invention discloses an electric vehicle anti-theft and tracking system and method based on zigbee. The electric vehicle anti-theft and tracking system comprises a backstage management system, an intersection monitoring system, an electric vehicle terminal and a traffic police handheld device, where all the modules can work cooperatively. According to the electric vehicle anti-theft and tracking system and method, the zigbee technology is used in cooperation with the backstage management system, and the intersection monitoring system transmits received vehicle information to the backstage so that a lost vehicle driving map can be drawn and transmitted to the traffic police handheld device. Through the zigbee positioning technology, the anti-theft and tracking problem of an electric vehicle is solved, and finally electric vehicle anti-theft and tracking can be intelligently managed and widely carried out with low cost.

Automobile sheet metal part bending quality detection device

The invention discloses an automobile sheet metal part bending quality detection device, and belongs to the technical field of quality detection. The detection device comprises a workbench, a rotating center assembly is installed on the workbench, a workpiece carrier is rotationally arranged between the rotating center assembly and the workbench, the rotating center assembly is matched with the workpiece carrier and used for controlling the rotating center of the workpiece carrier, a workpiece clamping jaw is installed on the workpiece carrier, and the workpiece clamping jaw is used for positioning and clamping one end of a sheet metal part. A deflection detection assembly is installed on the workbench and used for detecting the rotating path of the bending point position of the sheet metal part, and an angle detection assembly is installed on the workbench and used for detecting the rotating path of the end point position of the other end of the sheet metal part. The two rotation centers ...

Power supply system filtering compensation device

The utility model relates to a power supply system filtering compensation device can effectively solve because of big, the easy magnetic saturation of reactor consumption, condenser decay and influence the problem of filtering effect, and the technical scheme of its solution is, including controller, switch and condenser, the controller links to each other with switch, reactor respectively through the wire, and the reactor links to each other with power supply system through the switch to through the condenser ground connection that is used for filtering, the reactor be by excitation coil in casing and the casing and filtering loop formation, insulating mutually between excitation coil and filtering coil to warp, weft coiling become the columniform hollow body, and excitation coil's both ends link to each other with controller PWM output, and the one end of filtering coil links to each other with the switch, and the other end links to each other with the ground capacitor, the utility model ...

Method for preparing Bi2Te3 / carbon nano-tube composite material

The invention discloses a method for preparing Bi2Te3 carbon nano tube composite material, which adopts microwave polyol synthesis technique: 1) Bi element compound and Te element compound or Te elementary substance are respectively dissolved in glycol according to the mol ratio of Bi: Te determined by the chemical composition of Bi2Te3 and then stirred and mixed together; 2) ultrasonic dispersion is carried out on the processed carbon nano tube in the glycol, and the pH value is adjusted to be 11-14; 3) according to the mass ratio of 0.1:1-2:1 between the carbon nano tube and the Bi2Te3, the mixed solution in the step 1) is titrated in the solution of the step 2) for reaction at the temperature of 140-190 DEG C in a state of microwave radiation; after the reaction, the products are separated centrifugally and washed, and the solid products are collected and dried. The technique is simple and rapid, and the prepared Bi2Te3 carbon nano tube composite material can be used for improving the ...

Aspergillus niger proline protein endopeptidase and preparation method thereof

The invention relates to Aspergillus niger proline-specific endoprotease and the preparation method thereof, which belong to the field of genetic engineering and enzymology. The Aspergillus niger proline-specific endoprotease is selected from amino acid sequence of Aspergillus niger proline-specific endoprotease with a sequence code of SEQ ID No.2, wherein the amino acid sequence has nucleotide sequences represented by the first to the 1,581 in SEQ ID No.1, and has polypeptides of amino acid sequence represented by SEQ ID No.2. Test shows that haze protein bands with molecular weight of 8 to 14 kDa are disappeared completely after SDS-polyacrylamide gel electrophoresis detection of beer protein added with PEP, which shows that the haze activity protein rich in proline residues is hydrolyzed completely by PEP, and primarily testifies that proline-specific endoprotease can specifically cut protein and proline residues at carbon terminal of a peptide chain, and can eliminate cold haze ...

Intervene doctor and protect lead shield

The utility model provides an intervene doctor and protect lead shield, board is straightened including removing the frame, protecting against radiation, removal frame for the L die cavity body, seted up the opening on the L die cavity vertical cavity physically, the lower extreme of the straight board of radiation protection pass the opening, and should link to each other with adjusting device by the end, the one end in the upper end of the straight board of protecting against radiation with the radiation protection arc links to each other, from the bottom up is equipped with the operation hand in proper order and stretches into hole, radiation protection glass board on the radiation protection arc, radiation protection glass board is fixed on the opening on the top of radiation protection arc, adjusting device include hand wheel, lead screw and nut. The beneficial effects of the utility model are that: be convenient for medical personnel operation, effectively perform the operation doctor's ...

Method for extracting anatase coarse powder by using waste vanadium-titanium denitration catalyst

The invention relates to a method for extracting anatase coarse powder by using a waste vanadium-titanium denitration catalyst. The method comprises the following steps: A, surface pretreatment; B, pore impurity treatment; C, acid pickling and drying; the invention aims to solve or at least alleviate the problem that the utilization rate of a spent catalyst is low when the spent catalyst is used for extracting anatase coarse powder at present, and provides a method for extracting anatase coarse powder by using a waste vanadium-titanium denitration catalyst.

Transformer temperature remote monitoring warning protection system

Transformer temperature remote monitoring warning protection system, including intelligent temperature controller 1, set up antenna 4 on the intelligence temperature controller 1, operating switch 5 and ac contactor control terminal, intelligence temperature controller 1 connects temperature probe 7, intelligence temperature controller 1's rear portion sets up the mount, fixed mounting bracket is by fixed plate 9, movable plate 12 is constituteed with bolt 11, 9 one end fixed mounting of fixed plate are on intelligent temperature controller 1, intelligence temperature controller 1 sets up sliding tray 10, 10 fit ins of sliding tray set up sliding block 13, movable plate 12 is connected to sliding block 13, set up the screw on the movable plate 12, bolt 11 passes the screw cooperation of fixed plate 9 and movable plate 12. Can reliably provide real -time data with the help of current each transformer of " GPRS " network real time remote monitoring, last rising when reaching certain limit ...

Environment-friendly energy-saving low-nitrogen vertical boiler

The utility model provides an environment-friendly energy-saving low-nitrogen vertical boiler which comprises a boiler body, a uniformly-arranged combustion supporting frame assembly is detachably connected to the lower portion of the inner side of the boiler body, a feeding port is formed in the portion, on one side of the uniformly-arranged combustion supporting frame assembly, of the boiler body, the upper end of the boiler body is detachably connected with a first water tank, and a first drainage pipe is arranged below one side of the first water tank. A first electromagnetic valve is arranged on the drainage pipe, a second water tank is detachably connected to one side of the first water tank, the first water tank and the second water tank are both detachably connected with a water inlet device, a second water outlet pipe is detachably connected to the lower portion of the second water outlet pipe, and a second electromagnetic valve is arranged on the second water outlet pipe; the ...

Preparation method of composite material of carbon nanotube loaded with Bi2Te3 nanosphere

The invention relates to a preparation method of a composite material of a carbon nanotube loaded with a Bi2Te3 nanosphere, comprising the following steps: mixing ethylene glycol solution containing Bi and ethylene glycol solution containing Te according to the molar ratio 2:3 of Bi to Te determined based on the chemical formula of Bi2Te3; ultrasonically dispersing a processed carbon nanotube into mixed solution of ethylene glycol and deionized water, mixing the mixture with the mixed solution containing Bi and Te, and centrifugating, washing and collecting the deposited substance after reaction under microwave irradiation; ultrasonically dispersing the deposited substance into the ethylene glycol and dropping NaBH4 to be dissolved in the ethylene glycol solution, centrifugating, washing and collecting the solid product after reaction under microwave irradiation, and drying the solid product. The invention has a simple process. Since the Bi2Te3 is loaded and closely coated on the carbon ...

Preparation method of large-grain size latex particles

The invention relates to a preparation method of latex particles with grain sizes from 500nm to 1000nm. Agglomerating agent is copolymer of alkyl acrylate and carboxyl monomer, wherein the weight percentage of the carboxyl monomer is 3-60%, and the weight percentage of the alkyl acrylate is 97-40%; mixed emulsifying agent is fatty acid soap and alkane sulfonate, ferrous sulfate, rongalit, ethylenediaminetetraacetic acid tetrasodium salt and sodium hydrogensulfite are reducing agent, the reaction temperature is 75 DEG C, a first section of initiating agent is water-soluble initiating agent, a second section of initiating agent is oil-soluble initiating agent, and the average grain diameters are adjusted by cross-linking agent from 50 to 250nm to obtain the agglomerating agent; and the large-grain size latex comprises the components based on the parts by weight: 100 parts of the primary latex, 0.5-4 parts of the agglomerating agent, and 0.05-0.8 part of KOH solution under the agglomerating ...

Radiating type power supply device with touch sensor

The invention provides a radiating type power supply device with a touch sensor. The device comprises a device body (9), and an inserting head (6) which is inserted into an inserting hole in the device body (9); a locking and unlocking motor (91) is arranged in the device body (9); radiating fins (94) are lengthways arranged on the outer surface of the locking and unlocking motor (91) and used for absorbing and radiating heat produced by the locking and unlocking motor (91) in running so as to prevent the locking and unlocking motor (91) from being burnt out due to excessively high temperature in long-time operation; a rotor of the locking and unlocking motor (91) is in power connection with a screw rod (95); the screw rod (95) is in threaded fitting with a screw hole in a movable part (8) in the device body (9); a stator of the locking and unlocking motor (91) is fixedly connected with a power supply guide rod (74) which glidingly passes through a slide hole in the movable part (8), wherein ...

Method for preparation of hollow spherical cadmium sulfide nanocrystalline

The invention discloses a method for preparing a hollow spherical cadmium sulfide nano-crystal. The method adopts a hydro-thermal method, and comprises the following steps of: firstly, adding sodium dodecyl sulfonate and hexadecyl trimethyl ammonium bromide into deionized water, sufficiently stirring the mixed solution until the sodium dodecyl sulfonate and the hexadecyl trimethyl ammonium bromide are completely dissolved in the water to form a transparent solution, and adding cadmium chloride and thioacetamide into the transparent solution to stir and mix evenly; then, adding the mixed solution in a hydrothermal reaction kettle, sealing the hydrothermal reaction kettle at a temperature of between 80 and 160 DEG C for 6 to 24 hours; opening the reaction kettle after the reaction kettle isnaturally cooled to room temperature; and scrubbing and precipitating the reacted mixed solution by the deionized water and absolute ethyl alcohol, and centrifugally filtering and drying the precipitate ...

Blanked material sampling device for stamping and sampling method

The invention relates to a blanking sampling device for stamping and a sampling method, and belongs to the technical field of blanking sampling, a fixed shell is mounted on a blanking guide groove, a main shaft is rotatably connected to the fixed shell, a movable plate door is hinged to the blanking guide groove, and a driving mechanism for driving the movable plate door to be closed for sampling is mounted on the main shaft; a driving mechanism for driving the trapdoor to be closed for sampling is mounted on the main shaft, an energy storage mechanism for providing power for the driving mechanism is mounted on the main shaft, and a power mechanism for continuously enabling the energy storage mechanism to store energy is mounted on the main shaft. The main shaft is provided with the energy storage mechanism used for providing power for the driving mechanism, and the main shaft is provided with the power mechanism used for continuously enabling the energy storage mechanism to store energy ...

Networking type short network reactive compensation controlling means

The utility model relates to a networking type short network reactive compensation controlling means, it is limited effectively to solve the controller return circuit, expands inconveniently, and the expense is high, problem that work load is big, the technical scheme of its solution is, constitutes by the circuit in casing and the casing, the circuit include controller, inductance coils, compensating power supply and switch, the controller links to each other with inductance coils, inductance coils connects the electric wire netting transfer chain through condenser ground connection, controller through the switch, the controller links to each other through RS485 interface and follower, the on -off switch of follower in the RS485 bus connects the electric capacity cabinet, the follower constitute by integrated module and the dial switch who links to each other with integrated module, output pilot lamp, IO output interface, RS485 bus, the utility model discloses simple structure, it is novel ...

Preparation method of three-dimensional graphene oxide aerogel with high specific surface area

The invention discloses a preparation method of a three-dimensional graphene oxide aerogel with high specific surface area. The method is as below: first mixing an of graphene oxide powder and deionized water solution, conducting ultrasonic dispersion to obtain a stable graphene oxide aqueous solution with good dispersibility; then preparing the graphene oxide aqueous solution into a three-dimensional self-assembly graphene columnar material by a constant temperature hydrothermal method; the placing the prepared three-dimensional self-assembly graphene columnar material into an alcohol solution, and then freeze-drying to obtain the three-dimensional graphene oxide aerogel with high specific surface area. The preparation method is simple, easy to operate, low in energy consumption and pollution-free; the material with high specific surface area can be used as an electrode material for fuel cell, lithium-ion battery and super capacitor, also can be used as a filler material for composite ...

Energy-saving and environment-friendly gas-fired boiler with adjustable air volume

The utility model provides an air volume adjustable energy-saving environment-friendly gas-fired boiler which comprises a first water inlet pipe, the first water inlet pipe is detachably connected to the upper portion of the left side of the boiler, a heating assembly is arranged on the inner wall of the boiler, a first water drainage pipe is arranged below the boiler and below the heating assembly, and the first water drainage pipe is provided with a first electromagnetic valve; an observation opening is formed in the right side of the boiler, a temperature detector is arranged below the observation opening, one side of the temperature detector is fixedly connected with the right side of the boiler, the upper portion of the boiler is detachably connected with a first smoke pipe, the smoke pipe is detachably connected with a first smoke exhaust pipe, and the first smoke exhaust pipe is detachably connected with a waste heat recovery mechanism. A first supporting rod is detachably arranged ...

Contact separation mode triboelectric sensor and preparation method and application thereof

The invention belongs to the technical field of friction nano-generators, and particularly relates to a contact separation mode triboelectric sensor and a preparation method and application thereof. The triboelectric sensor is constructed in a contact separation mode, an Ag interdigital electrode on the surface of a high-density EVA sponge and a PTFE spraying layer serve as a lower friction layer, and a multi-layer stacked PVA-propylene fluorescent layer serves as an upper friction layer. The triboelectric sensor is applied to a friction power generation motion detection system, and the friction power generation motion detection system can be used for detecting motion characteristics of different joints of a human body. The triboelectric motion detection sensor provided by the invention has higher response speed and better motion intensity resolution, external mechanical stimulation is converted into electric pulses with corresponding intensity through the triboelectric sensor, battery ...

Thermal-insulation-shield-contained cable with high stability

The invention provides a thermal-insulation-shield-contained cable with high stability. The cable comprises a cylindrical cable body (9) arranged in a thermal-insulation shield and the thermal-insulation shield containing an upper thermal-insulation shield (8) and a lower thermal-insulation shield (7). The shield walls of the upper thermal-insulation shield (8) and the lower thermal-insulation shield (7) include bottom walls (80 and 70) and side walls arranged at the two sides of the bottom walls (80 and 70) respectively; and the bottom walls (80 and 70) are in contact with two circular top parts, opposite to each other at the diameter, of the cable body (9). Cooling fluid channels (81 and 71) extending along the shield walls are formed in the shield walls. The two side walls of the lower thermal-insulation shield (7) are inserted between the two side walls of the upper thermal-insulation shield (8).

Crystalline Form of Phenyl Bis (2,4,6-Trimethylbenzoyl) Phosphine Oxide With Large Particle Size and Crystallization Method for Making Same

A crystalline form of phenyl bis (2,4,6-trimethylbenzoyl) phosphine oxide, with a large particle size, which belongs to a triclinic crystal system and space group P-1. A crystallization method for making the crystalline form of phenyl bis (2,4,6-trimethylbenzoyl) phosphine oxide, comprising adding a solid of phenyl bis (2,4,6-trimethylbenzoyl) phosphine oxide to a solvent and mixing; followed by heating to 50 to 70° C. to achieve complete dissolution; cooling the solution to room temperature; and adding an anti-solvent to the resulting solution to cause precipitation of crystals. The crystals are allowed to grow at a constant temperature for 10 to 60 minutes, so as to give a slurry containing the crystals. Said slurry is subjected to filtration and then drying to obtain the crystalline form of phenyl bis (2,4,6-trimethylbenzoyl) phosphine oxide. 1. A crystalline form of phenyl bis (2 ,4 ,6-trimethylbenzoyl) phosphine oxide with a large particle size , having:an X-ray powder diffraction pattern comprising characteristic peaks at 4.7±0.1, 9.3±0.1, 12.2±0.1, 13.5±0.1, 14.0±0.1, 16.2±0.1, 17.3±0.1, 18.7±0.1, 19.6±0.1, and 24.9±0.1 degrees 2θ; wherein, the crystalline form belongs to a triclinic crystal system and to a space group P-1; cell dimensions from single crystal:', 'a=8.0301(16)Å', 'b=8.6673(17)Å', 'c=19.252(4)Å', 'α=84.07(3)°', 'β=82.83(3)°', 'γ=63.75(3)°', 'molecules/unit cell (Z): 2., 'and wherein, the crystalline form is characterized by unit cell parameters substantially equal to the following2. The crystalline form of claim 1 , having:a melting point measured by differential scanning calorimetry of 117 to 121° C.; anda thermo-gravimetric analysis profile showing that the crystalline form starts to lose weight at 110±1° C. with a weight loss of 6.9±0.1% and starts to decompose and thus lose weight at 160±1° C.3. A crystallization method for making the crystalline form of phenyl bis (2 claim 1 ,4 claim 1 ,6-trimethylbenzoyl) phosphine oxide with a large ...

Wastewater treatment method, wastewater treatment system, molecular sieve manufacturing method and manufacturing system

The present invention discloses a method for a wastewater treatment and the treatment system thereof, and a method for the preparation of a molecular sieve and the molecular sieve preparation system. The wastewater treatment method of the present invention comprises an electrodialysis treatment of the wastewater to obtain desalted water having a reduced content of organic ammonium ion and an alkali liquor containing an organic ammonium ion, wherein the electrodialyser used in the electrodialysis has at least one membrane unit, and at least a part of the membrane unit comprises a cation exchange membrane. The method for wastewater treatment and the system thereof in the present invention can effectively reduce the content of the organic ammonium ion in the wastewater and thereby reduce the COD value of the wastewater. Both the recovered organic ammonium ion and the produced desalted water can be recycled when the wastewater containing the organic ammonium ion from the production of a molecular sieve is treated using the present method, as realizes an effective reuse of resources.

Crystalline form of phenyl bis (2,4,6-trimethylbenzoyl) phosphine oxide with large particle size and crystallization method for making same

A crystalline form of phenyl bis (2,4,6-trimethylbenzoyl) phosphine oxide, with a large particle size, which belongs to a triclinic crystal system and space group P-1. A crystallization method for making the crystalline form of phenyl bis (2,4,6-trimethylbenzoyl) phosphine oxide, comprising adding a solid of phenyl bis (2,4,6-trimethylbenzoyl) phosphine oxide to a solvent and mixing; followed by heating to 50 to 70° C. to achieve complete dissolution; cooling the solution to room temperature; and adding an anti-solvent to the resulting solution to cause precipitation of crystals. The crystals are allowed to grow at a constant temperature for 10 to 60 minutes, so as to give a slurry containing the crystals. Said slurry is subjected to filtration and then drying to obtain the crystalline form of phenyl bis (2,4,6-trimethylbenzoyl) phosphine oxide.

Genomic editing of improved efficiency and accuracy

Provided are compositions and methods for enhanced prime editing, which include a pegRNA that encodes a target mutation in a target protein, along with one or more nearby silent or conservative mutations. These silent mutations can increase the editing efficiency, without causing a change to the target protein sequence. Also provided are compositions and methods of using the improved prime editing for preventing or treating infections by SARS-CoV or SARS-CoV-2.

Double-sided weeding machine equipped with grass-cutting toothed plates

Disclosed is a double—sided weeding machine equipped with grass—cutting toothed plates, comprises a fixing frame, the top of the fixing frame is fixedly connected with a battery box, 5 the top of the battery box is fixedly connected with four wires, and both sides of the fixing frame are fixedly connected with fixing plates. A user holds the handle, and the driving motor drives the roller under the hub bracket to rotate, thereby driving the whole equipment to move. The battery supplies power to the hydraulic cylinder further make the shovel plate shovel grass back and forth. As the two sides of the shovel plate are set in V shape and the 10 end of the tooth rack far away from the shovel plate is set in a screw conehead shape, it is easier for the equipment to break soil and shovel grass, thereby facilitating improvement of weeding efficiency.

Front splayed backfiller for wolfberry

A front splayed backfiller for wolfberry comprises a front suspension frame, a backfilling frame body, a first scraper and a second scraper; the first scraper and the second scraper are fixedly 5 disposed on the backfilling frame body in a splayed structure; and the front suspension frame is arranged on the backfilling frame body for suspension connection with the front end of a tractor, and the present invention is driven by the tractor moving forward along the central line ofthe ditch. The excavated soi| on both sides ofthe ditch is pushed into the ditch by means of the first scraper and the second scraper arranged in a splayed structure to refill the ditch. 10 Therefore, the present invention is suitable for backfilling operation on wolfberry fields with simple structure, small occupation and relatively high working efficiency.

一种可调节电视机壁挂支撑装置

本实用新型公开了一种可调节电视机壁挂支撑装置，包括固定基座本体、一组相对的固定滑槽、移动滑动块、固定旋转座、旋转轴、旋转臂以及固定座，所述一组相对的固定滑槽分别开在固定基座本体上，所述移动滑动块滑动安装在一组相对的固定滑槽内，所述固定旋转座固定安装在移动滑动块一侧，所述旋转轴套装在固定旋转座上，所述旋转臂固定安装在旋转轴上，所述固定座固定安装在旋转臂上，所述固定基座本体上设有电视机调节机构。本实用新型的有益效果是，通过转动旋转臂调节电视机的角度，通过移动滑动块滑动调节电视机的位置，通过旋转螺纹固定杆调节电视机的高度，电视机使用灵活，方便对电视机的位置进行调节移动，并且占据的空间小。

Method of treating silicon-containing wastewater and method of utilizing silicon-containing wastewater, and molecular sieve manufacturing method

Radiation-proof wall structure for ct room of hospital

Genomic editing of improved efficiency and accuracy

Provided are compositions and methods for enhanced prime editing, which include a pegRNA that encodes a target mutation in a target protein, along with one or more nearby silent or conservative mutations. These silent mutations can increase the editing efficiency, without causing a change to the target protein sequence. Also provided are compositions and methods of using the improved prime editing for preventing or treating infections by SARS-CoV or SARS-CoV-2.

Walking power control system for wolfberry picking

A walking power control system for wolfberry picking, including a frame, a turntable, rotating rods, first gears, second gear, gear racks, supporting rods, hydraulic motors, a front traveling wheel, a left traveling wheel and a right traveling wheel. Hydraulic motors rotate to drives three traveling wheels to rotate, thereby driving the frame to move, when it is necessary to turn, a turntable is rotated, the turntable rotates to drive two first gears to rotate, and the two first gears rotate to drive the supporting rods to rotate, thereby driving the left traveling wheel and the right traveling wheel to rotate, so that the traveling direction of the frame is changed.

Multi-gas detection system based on internet of things

Genomic editing of improved efficiency and accuracy

Cancer immunotherapies using engineered cells

The disclosure provides hematopoietic cells wherein one or more selected second signaling molecule (s) are knocked out, such that stimulation of heterologous CD8+ T cells by the hematopoietic cells is substantially reduced.

Systems and methods for enhanced cell therapies

The present disclosure describes systems and methods for cell therapies. Cells (e.g., stem cells, immune cells, cardiomyocytes, etc. ) can be engineered to exhibit enhanced half-life as compared to control cell (e.g., a non-engineered cell). Cells can be engineered to exhibit enhanced proliferation as compared to a control cell. In some cases, immune cells can be engineered to effectively and specifically target diseased cells (e.g., cancer cells) that a control cell otherwise is insufficient or unable to target. In some cases, stem cells or differentiate cells such as cardiomyocytes can be administered to a target tissue for enhanced tissue engineering or regenerative medicine. The engineered cells disclosed herein can be engineered ex vivo, in vitro, and in some cases, in vivo. The engineered cells that are prepared ex vivo or in vitro can be administered to a subject in need thereof to treat a disease (e.g., myeloma or solid tumors). The engineered cells can be autologous to the subject. Alternatively, the engineered cells can be allogeneic to the subject.