REUSABLE DEVICE FOR PRESTRESSED TENSION OF RAILWAY CONTINUOUS CAST-IN-PLACE BEAM

Disclosed is a reusable device for prestressed tension of a railway continuous cast-in-place beam. An outer side of a trench body of a stainless steel tension trench is coated with a demolding layer, a vertical prestressed tendon vertically penetrates a centre of the bottom of the trench body, and an anchor bearing plate of the vertical prestressed tendon is fixed to the bottom of the trench body through a finish-rolled thread tension nut. The outer side of the trench body of the stainless steel welded tension trench used in the present invention is coated with the demolding layer, and the anchor bearing plate of the vertical prestressed tendon is fixed to the bottom of the trench body, and manual demolding may be performed after concrete is finally set, such that the device is reusable. Therefore, the device may be used to effectively guarantee a geometric size and a quality of the tension trench, and has a simple structure, is convenient to use and saves labour and materials. Drawings ...

Juncus effususl phenanthrene effective part and preparation method and use thereof

The present invention relates to a juncus effususl phenanthrene effective part and a preparation method and use thereof in the manufacture of anti-anxiety drugs, the juncus effususl phenanthrene effective part contains more than 50% of effusol, dehydroeffusol, juncus effususl phenol and dehydro juncus effususl phenol, the preparation method comprises the following steps: taking juncus effususl stem medulla, using an ethanol aqueous solution for extraction with refluxing; combining the obtained extract and concentrating, then using ethyl acetate for ultrasound extraction, combining the extract, concentrating and drying the combined extract to obtain a dry ethyl acetate crude extract; and taking the dry ethyl acetate crude extract for silica gel column chromatography or high-speed countercurrent chromatography separation to obtain the juncus effususl phenanthrene effective part.

SUPPORT AND FALLING PROTECTION CAGE FOR INITIAL DIGGING OF DEEP DIGGING PILE

The present disclosure discloses a support and falling protection cage for initial digging of a deep digging pile. The cage body is of a three-sided structure, two sides of which are rectangular surfaces perpendicular to each other, and the other side is a sector surface; a main skeleton of the cage body is made of angle steel, and steel plates are mounted at the top and bottom; steel bars are welded into fences on the two rectangular surfaces; and the sector surface is an entrance/exit. Angle steel, steel plates and steel bars are welded into a steel cage capable of accommodating operators, and the steel cage is placed at a corner of a shaft bottom. When a winch lifts slag, operators hide in the steel cage, which can avoid casualties due to high-altitude falling objects. The present disclosure is simple in structure, low in manufacturing cost and convenient to operate, occupies a small space, and has little construction interference. After multiple trials, operators can be completely prevented from being hurt by high-altitude falling objects. 1/3 Drawings: FIG. 1 - 2--------- FIG. 2

Device for preventing high confined water from ejecting drill

The invention discloses a device for preventing high confined water from ejecting a drill. The whole structure of the device comprises a drill rod clamper, a flange plate, an orifice casing, studs, hexagon nuts and a stop disc, wherein the drill rod clamper can be firmly buckled on a drill rod; the flange plate and the orifice casing are connected through welding; and the flange plate and the stop disc are connected through four studs and sixteen hexagon nuts. If the high confined water is detected in a drill hole, the high confined water enables a drill tool to rush out the drill hole; in the process of rushing out the drill rod, the drill rod clamper on the drill rod is stopped by the stop disc, so that the outgoing state of the drill rod is stopped so as to prevent the ejection of the drill from the high confined water.

Oil additive composition for engine with ethanol or ethanol gasoline as fuel

The invention relates to an oil additive composition for an engine with ethanol or ethanol gasoline as the fuel to meet the lubrication requirements of the engine with ethanol or ethanol gasoline as the fuel under harsh conditions. The lubricating oil composition has excellent lubricating performance, low-temperature oil sludge dispersing performance, piston detergency, antioxidant and anticorrosion performance, and especially has good inhibiting effects on the corrosion caused by ethanol gasoline combustion produced acetic acid, sulfides and other acidic substances to engine metal parts, particularly copper parts and the corrosion and wear to piston rings and air cylinder walls, thereby ensuring normal lubrication of the engine. The engine oil composition comprises at least one metal detergent, one ashless dispersant and one oxidation and corrosion inhibitor.

Baculovirus expressed antitumor Onconase protein

The invention provides a baculovirus expressed antitumor Onconase protein. The anti-cancer Onconase protein is prepared by the following steps: co-transfecting Onconase protain recombinant plasmid through polyhedrin gene; preparing recombinant virus by plaque purification; and injecting the recombinant virus in the five-instar of young silkworm for high-efficiency expression. The protein has the following advantages: (1) high the expression has high efficiency; and (2) the post-processing of the expression product is more perfect. Meanwhile, the protein has the following defects: (1) the expression is discontinuous; (2) the protein is lack of composite oligosaccharide; and (3) the safety of the protein has no conclusion.

METHOD FOR APPLYING COMPOSITE STEEL PIPE SUPPORT AS BASE OF SOUND BARRIER ON SIMPLY SUPPORTED BRIDGE

The invention discloses a method for constructing a sound barrier foundation of a railway simply supported beam by using a combined steel pipe support, which comprises the following steps: the longitudinal and transverse spacing and pace of the whole support system according to load are calculated; two upright rods are erected on the ground directly below the design position of the sound barrier foundation of simply supported railway beams; a lead screw is placed in the top of the upright rod, and the external thread of the lead screw is connected with an adjusting screw thread; square wood is installed at the top ends of the two lead screws, and the height of the square wood is adjusted through the adjusting threads; the formwork is installed on the upper surface of the square wood; after reinforcement is completed and checked to be correct, steel bars are bound, concrete is poured and foundation is formed. The advantages of the present invention are as follows: convenient assembly and ...

Automatic sprinkling and maintenance method of flat concrete roof in area with high temperature and low rainfall

The invention provides an automatic sprinkling and maintenance method of flat concrete roof in area with high temperature and low rainfall, which belongs to the technical field of building material construction. The automatic sprinkling and maintenance device of the present invention includes a water pipe and a leaking pipe. The inlet end of the water pipe has a time relay, and the pipe body of the leaking pipe has a water leakage hole. The automatic sprinkling and maintenance device provided by the present invention is suitable for automatic maintenance of flat concrete roofs in areas with high temperature and low rainfall; it can also effectively save labor costs and reduce construction costs. - 1- Drawings Fig2 0 a00 0 00 0 00 0 0 QOQ0 o 0 0 0 0 0 00 0 0 0 0 Fig.3

Gasoline and engine oil composition

The invention relates to a prepared gasoline engine lubricating oil composition, which meets the APISJ, SJ/GF-2 and SAEJ300 specification indicators. The gasoline engine lubricating oil composition can meet the lubrication requirement of a gasoline engine with higher compression ratio, the lubricating oil composition has excellent lubrication performance which can ensure the favorable lubrication of an engine, has excellent dispersion performance which can effectively reduce the forming of oil sludge, ensures the engine piston to be clear, effectively prevents oil product from oxidative deterioration, prevents the abrasion of the parts of the engine, and has certain energy saving effect to reduce the oil consumption. The lubricating oil composition comprises metallic detergent, ashless dispersant, oxidation and corrosion inhibitor, pour inhibitor, viscosity index improver and base oil.

COMPREHENSIVE GUIDE AND DRAINAGE METHOD FOR PREVENTING WATER SEEPAGE IN DEEP BASEMENTS USING GEOTEXTILE BLIND DRAINS

A comprehensive guide and drainage method for preventing water seepage in deep basements using geotextile blind drains, comprising the following steps: tying the basement floor reinforcing bars and installing steel plate water stops around the bored pile according to the design drawings; measuring the length from the bored pile location to the nearest sewage pit and recording the length; intercepting the blind drains according to the recorded length and numbering them; using geotextile to wrap each blind drain and tying them tightly with binding wires to prevent the geotextile from falling off; placing the wrapped blind drains in order from the side of the bored pile to the sewage pit; using binding wires to fix the blind drains to the floor bottom reinforcing bars; placing one end of the blind drains on the side of the bored pile without special protection, and not pouring concrete within the range of 2m*2m for the bored pile. The beneficial effect of the invention is that it can play a role in preventing water seepage and ensuring that the basement is dry and water-free; it basically does not increase construction costs; it can avoid the treatment of water seepage and avoid the treatment costs caused by water seepage, which is cost-saving and economical. 1 DRAWINGS 2 FIG. 1 3 FIG. 2 1

ANTI-FREEZING AND ANTI-SHIFTING STABILISATION STRUCTURE OF HEAVY CEMENT TANK FOUNDATION OF MIXING PLANT IN LONG WINTER AREA AND CONSTRUCTION METHOD

Disclosed are an anti-freezing and anti-shifting stabilisation structure of a heavy cement tank foundation of a mixing plant in a long winter area and a construction method. The stabilisation structure includes a filling layer, a thermal insulation and water blockage layer and a frozen soil slackening layer which sequentially enclose a periphery of the cement tank foundation from inside to outside, wherein the filling layer is made of a mixture of cement, fly ash, clay and gravel, the thermal insulation and water blockage layer is made of foam boards, and the frozen soil slackening layer is made of salt powder which adheres to an outer side of the thermal insulation and water blockage layer. The anti-freezing and anti-shifting stabilisation structure prevents the cement tank foundation from shifting due to frost heaving. DRAWINGS: 2-1 Fig.

Movable internal supporting crib ring for wall of well during backfill grouting

The invention discloses a movable internal supporting crib ring for a wall of a well during backfill grouting. The movable internal supporting crib ring mainly comprises channel steel crib rings, a pretightening stud, connecting bolts and connecting nuts. The channel steel crib rings are divided into No.1 channel steel crib rings and No.2 channel steel crib rings; each movable internal supporting crib ring for the wall during backfill grouting comprises two sections of No.1 channel steel crib rings and two sections of No.2 channel steel crib rings. The No.1 channel steel crib rings are closely connected through connecting bolts and connecting nuts; the No.2 channel steel crib rings are connected through the pretightening stud. After the crib rings are connected, the diameter of the whole crib ring can be increased or decreased to certain extent under the action of the pretightening stud, the aim of internally supporting the wall of the well is fulfilled, and the aim of reducing the cracking ...

Energy-saving engine oil additive composition

The invention discloses an engine oil additive composition, which can be used for preparing SL/GF-3 gasoline engine oil, wherein the connected oil product can meet lubrication requirements of a gasoline engine with harsh conditions. A lubricating oil composition has the advantages of high lubricating property, low-temperature oil sludge dispersive property, piston detergency, oxidation and corrosion resistance, abrasion resistance, and effects of improving fuel economy and energy conservation. The engine oil composite additive comprises at least a metallic detergent, an ash-less dispersant, an oxidation and corrosion inhibitor and a friction modifier.

A METHOD FOR EXCAVATING AND ENTERING A STEEP SLOPE MEGA THICK UNCONSOLIDATED TALUS TUNNEL BY ADOPTING FULL-RING BACK HAUNCH FILLET OF ARCH

A method for excavating and entering a steep slope mega thick unconsolidated talus tunnel by adopting full-ring back haunch fillet of arch, comprising the following steps: preprocessing the side slope; constructing 3m long back haunch fillet of arch first against the slope; after the concrete reaches the strength, providing 43m supporting steel pipe inside the guide steel pipe; after the large pipe shed is grouted, constructing 10m back haunch fillet of arch to the outside; after the construction of the 13m-long back haunch fillet of arch is completed, excavating into the tunnel from one end of the arch. The invention reduces the excavation quantity of the talus and the disturbance to the talus by the engineering construction in the open tunnel section of the tunnel. / 1-2 - - - ~TUNNEL C NTER LINE-- 1-2 ...

Oil composition for two-stroke carbaretor engine

Gray scale test method and system based on big data, electronic equipment and storage medium

The invention discloses a gray scale test method and system based on big data, electronic equipment and a storage medium. The method comprises the following steps: obtaining a to-be-delivered user according to a delivery priority; putting the target function to the to-be-put user, and testing according to the target function; and counting test results. Through the above mode, the security of the big data gray scale test can be improved.

BOTTOM-VALVE-FREE AUTOMATIC DRAINAGE METHOD USING IMPROVED JET DEVICE FOR DEEP SHAFT CONSTRUCTION

The present disclosure discloses a bottom-valve-free automatic drainage method using an improvedjet device for deep shaft construction. The improvedjet device includes an air mixing tube, a neck tube and a diffusion tube sequentially welded in the axial direction, and a diffusion port is provided at an outer end of the diffusion tube; a jet tube is inserted and welded to the air mixing tube by means of one end insertion and one end exposure, a nozzle is formed at an inner end of the jet tube, an air compression tube quick plug is mounted at an outer end of the jet tube, and an air compression valve is mounted on the jet tube; a suction adapter tube is connected to the air mixing tube in the radial direction, a water level observation chamber is serially connected to the suction adapter tube, a suction valve is mounted on the suction adapter tube close to the outer end, and a suction tube quick plug is mounted on the suction adapter tube inside the water level observation chamber. The improved jet device is simple in structure and convenient to use; and the drainage method has small reform project quantity and short reform time, and reduces late maintenance of a water pump. 1/1 Drawing: .5 /6 4-1 FIG. 1

ENVIRONMENTAL PROTECTION TREATMENT METHOD FOR SECONDARY SOLID-LIQUID SEPARATION OF MUD IN BRIDGE DEEP BORED PILE

OF THE DISCLOSURE The present invention discloses an environmental protection treatment method for secondary solid-liquid separation of mud in bridge deep bored pile, which comprises the following steps: Si: Waste mud is input into a sedimentation tank for sedimentation, and the rock debris deposited on the bottom is directly discarded into the spoil disposal area; S2: The waste mud in which rock slag is removed by precipitation is input into a buffer tank, and water and destabilizing agent are added for early stability breaking treatment and buffer settlement; S3: The waste mud after the early stability breaking treatment is input into a sludge stability breaking integrated unit, destabilizing agent is added again for secondary stability breaking treatment, and the solid-liquid separation is forcibly realized by a pressurizing pump; S4: The separated dewatered sludge is discharged by a sludge conveyor and dried to form mud cakes; the separated sewage can be recycled or discharged into the sewage treatment unit, and directly discharged after meeting the standard. The treatment method avoids the direct discharge of waste mud and occupation of the storage area, realizes the separation of water and mud, and facilitates the secondary utilization of water and mud. 1 DRAWINGS: Waste mud Museietto Rokdbidscag site Add water Buffer area (Early stability Primary dosing breaking treatment) Secondary Sludge stability breaking integrated equipment (Secondary stability breaking treatment, pressurized solid-liquid separation) Sewage treatment unit Reclamation of spoil ground, land reclamation Naturaldrying Sludgeconveyor of river beach, planting soil mudcake gcClarwter of slope Fig. 1

Business test method and device and electronic equipment

The invention provides a service testing method and device and electronic equipment, and relates to the technical field of service testing, and the method comprises the steps: responding to a test starting operation, and constructing a random directed acyclic graph (DAG); traversing nodes of the DAG, and creating an offline job according to a traversing sequence; generating a verification point according to the business logic corresponding to the offline operation and the dependency relationship; acquiring job instance information of the to-be-tested service system; and verifying the instance information according to the verification point to determine whether the dependency relationship of the to-be-tested service system is correct or not. Compared with a mode of manually generating a test case, the service test method and device and the electronic equipment provided by the invention have the advantages that the interference and influence of artificial experience are greatly reduced, the ...

Growing tray seeder

The invention provides a growing tray seeder which relates to the field of agricultural production machinery. A seed distribution shaft (3) of the growing tray seeder is arranged at the lower end of a seed box (1), a shaft sleeve (4) is arranged at the outer side of the seed distribution shaft (3), gears (2) are arranged at both ends of the seed distribution shaft (3), brackets (6) are arranged at both sides of the lower end of the seed box (1), the lower ends of the brackets (6) are provided with supporting wheels (7), the outer sides of the gears (2) and the supporting wheels (7) are provided with caterpillar bands (5), and handles (8) are arranged at both ends of the seed box (1). The invention has simple structure, lower cost, convenient operation, easy control and high working efficiency, is suitable for both a paddy field and a dry farmland, can accurately regulate the seeding quantity and realizes the seeding of the whole tray.

Edible fatless animal protein and its preparation method and uses

The fat-free animal protein is prepared with protein containing matter, such as bird feather, animal hair, silk, etc. as material, and through alkali treatment to eliminate fishy smell, breaking walland chain, purification, electrically deposition to separate, drying and crushing. The fat-free animal protein has reasonable molecular structure, high biological cost protein content up to 90 %, highactive immune globulin content, eight kinds of amino acids essential for human body and incapable of being synthesized and nutritive value near to that of breast milk. It may be eaten directly or used as food additive. The present invention has the features of high functionality, high convenience, high purity and low cost.

Novel seedling raising disc seeding device

The invention provides a novel seedling raising disc seeding device, which relates to the field of agricultural production machinery. The novel seedling raising disc seeding device consists of a seed box (1), gears (2), a seed distributing shaft (3), a shaft sleeve (4) and a handle (5), wherein the seed distributing shaft (3) is arranged at the lower end of the seed box (1), the shaft sleeve (4) is arranged at the outer side of the seed distributing shaft (3), the gears (2) are arranged at both ends of the seed distributing shaft (3), and the handle (5) is fixed on the seed box (1). The invention has the advantages of simple structure, low cost, small size, convenient operation and the like, can realize the whole disc seedling, and has the characteristics of few hollow pit amount, uniform pits and stains and high work efficiency.

一种食用纤维素的制备方法及产品

The present invention prepares edible cellulose with refined cotton or wood pulp cake as material and through five steps of hydrolysis, degradation and purification, enzymolysis and deactivation, drying and crushing. Compared with cellulose prepared with husk and bean coating, the edible cellulose of the present invention has high purity, no sugar, no sodium, no heat, no fat, no cholesterol and rich material source. The present invention is suitable for large scale production in low cost.

Commonly-used internal combustion engine oil composition

The universal internal combustion engine oil composition features its proper amount of dinonyl dianiline resulting in improved high temperature oxidation property and it shows excellent effect in solving the problem of densified engine oil in the III D engine test. The said composition contains also proper amount of esters as ashless additive, sulfonate, sulfurized calcium alkyl phenate, polyisobutene butyl diimide and zinc dialkyldithiophosphate to improve its high temperature detergent property, dispersivity and other property while further raising the antioxidant property.

Conveying device for chestnut production and processing

The utility model discloses a conveying device for chestnut production and processing. The device comprises a shell, a motor, a conveying chamber, a power cavity and a control panel, a power cavity isformed in the bottom end of the interior of the shell; a bracket is arranged on one side of the bottom of the power cavity; a motor is arranged in the center of the top end of the bracket; a rotatingshaft is mounted at the output end of the motor through a coupling; rotating rollers are arranged on the two inner side walls of the power cavity; a conveying belt is wound on the surface of the rotating roller, a conveying chamber is arranged in the shell above the power cavity, a feeding port is formed in one side of the top end of the shell, a transparent observation window is arranged at oneend of the surface of the shell, a control panel is arranged on the surface of the shell below the transparent observation window, and a counter is arranged on the outer wall of the side, away from the control ...

Anti-tumor epothilone oral liquid

The invention relates to an anti-tumor epothilone oral liquid. EpothiloneA-epothilonel are combined in different ways to generate different epothilone liquid mixtures; and the liquid mixtures are used as oral liquids since the epothilones are effective when being orally taken.

Semiconductor multi-endpoint access test equipment

The invention discloses a semiconductor multi-endpoint access test device, which relates to the technical field of semiconductor testing, and comprises a placement mechanism, the placement mechanism comprises a placement base, a turntable base is fixedly mounted on the placement base, a rotating disc is rotatably mounted on the turntable base, and a plurality of semiconductor chips are fixedly placed on the rotating disc. A rotating disc motor is fixedly installed on the rotating disc base, a grooved wheel rod is fixedly installed on an output shaft of the rotating disc motor, a grooved wheel is fixedly installed on the rotating disc, the grooved wheel is matched with the grooved wheel rod, a cam is fixedly installed on the grooved wheel rod, a cam rod is rotatably installed on the rotating disc base, the cam rod is matched with the cam, and a transmission rod is fixedly installed on the cam rod. A rotating rod is fixedly installed on the transmission rod, a rotating seat is rotatably installed ...

Test data importing method and device, computer equipment and storage medium

The invention relates to the field of cloud testing and finance, and discloses a test data importing method and device, computer equipment and a storage medium, and the method comprises the steps: responding to a selection operation of a plurality of pieces of metadata, and obtaining to-be-processed data corresponding to the plurality of pieces of metadata; performing sensitive information identification on the plurality of pieces of metadata, and if the metadata including sensitive information exists, marking the metadata as sensitive metadata; performing desensitization operation on the to-be-processed data corresponding to the sensitive metadata to obtain to-be-tested data; obtaining a test data set based on the to-be-tested data and the to-be-processed data without the desensitization operation; and importing the test data set from a data platform into a test data bin to test the system and/or software. According to the technical scheme provided by the embodiment of the invention, the ...

Universal internal combustion engine oil composition

Oil composition for two-stroke carburetor engine

The invented lubricant composite contains two polyisobutylenes with different molecular weight, poly-alpha-olefine polymer oil, mineral oil as base oil, diluent kerosene, low base number sulfonate and polyisobutylene disuccinimide ashless dispersent. Said invented composite possesses excellent lubricating property, piston-cleaning property, exhaust blockage property and low smoke discharge property, so that it can reduce environmental pollution, and can meet the requirements of high-speed, high-power and high-performance two-stroke motorcycle and two-stroke carburetor engine for lubrication.

Dynamic synthetic testing system for retarding stop

The invention discloses a retarder dynamic synthesis detection system, which comprises a controller, a test board, a signal pick device, and a data processing and analyzing system. The test board consists of a stander, a hydraulic power impact unit, a clamping device and a sliding chute. The controller adjusts and controls the test board through a data line to cause the test board to generate pressure and impact force with different strength on the measured retarder. The signal pick device causes the received pressure and the displacement of the retarder to be collected by a pressure sensor and a displacement sensor and to be outputted to a signal collecting card through an amplifier, the signal collecting card converts the signal into the data read by a computer, a user analyzes and settles the data by using the computer and the corresponding program to obtain the dynamic response curve under the impact load of the retarder, the parameters of the return time, the terminal speed, and the ...

Novel after-rooting composite pile foundation

The invention relates to a novel after-rooting composite pile foundation. A hydraulic drill is used for drilling holes on a reinforced concrete floor (4) around a reinforced concrete column (3) on a reinforced concrete column base (2), the holes drilled by the hydraulic drill downwards penetrate through the reinforced concrete column base (2) from the reinforced concrete floor (4), an after-rooting high-pressure rotary jet grouting cement soil pile (9) is below the reinforced concrete column base (2), and the high-pressure rotary jet grouting cement soil pile (9) and the reinforced concrete column base (2) generate the novel after-rooting composite pile foundation under the action of high-pressure rotary jet grouting cement slurry. The after-rooting novel composite pile foundation disclosed by the invention can avoid taking down an old building at first and then building an old building pile foundation after excavation, so that the cost is saved; the after-rooting composite pile foundation ...

Composite gasoline and engine oil additive

The composite gasoline and engine oil additive includes metal detergent, ashless dispersant polyisobutylene succinimide and antioxidant anticorrosive agent. When the additive in 5.0-7.5 wt% is added into gasoline or engine oil, the gasoline or the engine oil will have excellent lubricant performance, piston clearing performance and antioxidant anticorrosive performance, meet the lubricating requirement of various kinds of gasoline engine equipped with tail gas converter and catalytic converter and with mid and high compression ratio, and the requirement of GB 11121 SE and SF specification andAPISE and SF specification.

Gasoline and engine oil composition

The invention relates to a prepared gasoline engine lubricating oil composition, which meets the APISJ, SJ/GF-2 and SAEJ300 specification indicators. The gasoline engine lubricating oil composition can meet the lubrication requirement of a gasoline engine with higher compression ratio, the lubricating oil composition has excellent lubrication performance which can ensure the favorable lubricationof an engine, has excellent dispersion performance which can effectively reduce the forming of oil sludge, ensures the engine piston to be clear, effectively prevents oil product from oxidative deterioration, prevents the abrasion of the parts of the engine, and has certain energy saving effect to reduce the oil consumption. The lubricating oil composition comprises metallic detergent, ashless dispersant, oxidation and corrosion inhibitor, pour inhibitor, viscosity index improver and base oil.

Passively Q-switched solid laser for pumping ring light and switching output columnar vector light

A passively Q-switched solid laser for pumping ring light and switching output columnar vector light comprises a pumping source with annularly-distributed output light beams, and a pumping coupled system, a laser gain medium, a saturable absorber and an output coupling mirror are arranged in sequence in the direction of the output light beams of the pumping source. The passively Q-switched solid laser has the advantages that the structure is simple and compact, efficiency is high, light beam quality is good, work is stable, cost is low, debugging is easy, the output columnar vector polarized light can be switched by changing pumping power, the output light can be switched into radial polarized light by adjusting the inclination angle of a crystal relative to an optical axis when the output light is angular polarized light, and columnar polarized light switching does not influence the efficiency of the laser.

Edible fatless animal protein and its preparation method and uses

The fat-free animal protein is prepared with protein containing matter, such as bird feather, animal hair, silk, etc. as material, and through alkali treatment to eliminate fishy smell, breaking wall and chain, purification, electrically deposition to separate, drying and crushing. The fat-free animal protein has reasonable molecular structure, high biological cost protein content up to 90 %, high active immune globulin content, eight kinds of amino acids essential for human body and incapable of being synthesized and nutritive value near to that of breast milk. It may be eaten directly or used as food additive. The present invention has the features of high functionality, high convenience, high purity and low cost.

Method for preparing grain size test sample of high-chromium cast iron

The invention relates to a method for preparing a grain size test sample of high-chromium cast iron. The method is characterized by comprising the following steps of: cutting a high-chromium cast iron test block from high-chromium cast iron and pre-polishing the surface of the high-chromium cast iron test block; upward placing the polished surface into a resistance furnace; gradiently controllinga temperature rising rate at 30 to 50 DEG C per hour and slowly rising the temperature at 650 to 730 DEG C; controlling the temperature rising rate at 150 to 250 DEG C per hour, rising the temperature at 850 to 900 DEG C and keeping the temperature for 40 to 70 minutes; controlling the temperature rising rate at 150 to 250 DEG C per hour, rising the temperature at 910 to 940 DEG C and keeping thetemperature for 15 to 30 minutes; controlling the temperature rising rate at 150 to 250 DEG C per hour, rising the temperature at 950 to 980 DEG C and keeping the temperature for 10 to 20 minutes; quenching ...

Use of ferulic acid in preparation of drug for resisting mammal anxiety

The invention provides a use of ferulic acid in preparation of a drug for resisting mammal anxiety and provides a novel antianxiety drug having good effects and small side effects. Ferulic acid is an effective component of the antianxiety drug. Results of mouse elevated plus-maze test, hole-board test and spontaneous activity test on ferulic acid shows that ferulic acid has substantial antianxiety effects and no calmness effect and thus adverse reactions such as fatigue and somnolence caused by calmness effects of the existing antianxiety drug are avoided.

Permeating impregnating condensing body reinforcing component formed through being combined with original underground concrete component

The invention relates to a permeating impregnating condensing body reinforcing component formed through being combined with an original underground concrete component, and belongs to the technical field of civil engineering underground cement structure component reinforcement. The component comprises the original underground concrete component and is characterized by also comprising a grouting transition small pile and a permeating impregnating condensing body, wherein the grouting transition small pile is arranged under the ground and is formed by high-pressure spiral cement slurry spraying, the permeating impregnating condensing body connects the grouting transition small pile and the original underground concrete component into a whole, the condensing body is filled in a gap part between the original underground concrete component and the grouting transition small pile, the condensing body is also filled in hole gaps between material molecule structures inside the original underground ...

Gas distribution detection method for limited space operation safety

The invention provides a gas distribution detection method for limited space operation safety, and belongs to the technical field of limited space gas detection.The gas distribution detection method for limited space operation safety comprises the following steps that a three-dimensional structure of a current limited space is collected; placing a plurality of acquisition terminals according to the three-dimensional structure of the current limited space; acquiring current acquisition data of the plurality of acquisition terminals; establishing a gas distribution model in the limited space, and analyzing the currently acquired data to judge the safety of the operation in the limited space; according to the invention, the problem that how to place the gas detection terminal is unclear in the prior art can be solved, so that more accurate gas distribution data for safety can be obtained.

Squeezing lock head spring bearing plate stress dispersing type large-tonnage expanding head anchor cable

The invention discloses a squeezing lock head spring bearing plate stress dispersing type large-tonnage expanding head anchor cable which comprises a steel strand, a locking device, a compressed spring, a bearing steel plate blocking ring, a guiding sleeve, a grouting concretion body, a steel strand support, an anchor cushion plate and a working anchor. An anchor cable frame formed by the steel strand is small in overall diameter, when the anchor cable frame is placed into an anchor hole, obstruction and interference with the hole wall are avoided, the front end of the steel strand is provided with a cone-shaped guiding sleeve, quicksand and mud in the anchor hole can be squeezed out and separated, the hole wall is squeezed and expanded, smooth pushing forward of the anchor cable is guaranteed, after grouting forming, a dispersed structure formed by the locking device, the bearing plate blocking ring, the compressed spring and the steel strand together and the cement concretion body work ...

Low ash lubricating oil composition for gas engine

Pulse detonation internal combustion engine

The invention provides a novel pulse detonation internal combustion engine (as figure 1), which is characterized in that a valve group, a cam shaft and the like of an automobile engine cylinder cover are adopted as an air inlet system and a combustion chamber in the cylinder cover is used as a small combustion chamber for detonation, and gas in the small combustion chamber is used for detonating combustible gas in a big detonation tube to generate push power to push a turbine to apply work. Compared with the conventional internal combustion engine, the pulse detonation internal combustion engine of the invention has unique advantages of high thermal cycle efficiency, large power converted from push power, wide work range, simple structure and light mass, is possible to replace the currently used internal combustion engine as power of traffic transport machines after technology maturation and has a defect of large noise which is expected to be further improved.

Traditional Chinese medicinal composition for treating undifferentiated spondyloarthropathy

The invention relates to a traditional Chinese medicinal composition for treating undifferentiated spondyloarthropathy. The composition comprises 3-7g of fringed iris, 5-10g of oriental stephania root, 3-5g of Common Yarrow, 2-6g of Rostellularia procumbens, 5-15g of Galium verum L., 3-5g of Lobelia sessilifolia Lamb., 3-7g of Japanese Pachysamdra Herb, 2-5g of slender falsenettle herb, 2-4g of Helleborus thibetanus, 1-3g of Calendula officinalis, 5-8g of wild buckwheat, 1-4g of Japanese China Fern Rhizome, 5-8g of Root of Greyblue Spicebush, 3-9g of Caulis Fici Tikouae, 2-4g of Root of Artocarpus hypargyreus, 1-3g of Herba Alyxiae Sinensis, 1-5g of Root of Calyx-shaped Daphniphyllum and 1-4g of Salix hypoleuca. The traditional Chinese medicinal composition has the efficacies of clearing heat and detoxifying, disinhibiting dampness and relaxing veins, invigorating blood circulation and removing stasis, and recuperating kidney and strengthening essence, and has the advantages of substantial ...

Ion radical carbon fiber

The invention provides an ion radical carbon fiber, wherein the preparation method of the ion radical carbon fiber comprises the following steps of: dissolving cellulose with ion liquid (C4MIM)cL to prepare ion fiber; and preparing the carbon fiber by the means that the ion fiber is protected by protecting gas. The ion radical carbon fiber is one of high-performance fibers, not only has the inherent characteristic of the carbon material, but also has the flexible machinability of the textile fiber, and is the most important reinforcing material of the advanced composite materials. The carbon fiber is widely applied to each field in the military industry, the civil industry, the sports equipment, the leisure products and the like such as the space flight, the aviation, the automobile, the electron, the machinery and the light textile, etc. Therefore, the carbon fiber is regarded as the classic representative of the novel industrial material in the high-tech field, has the important meaning ...

Dynamic synthetic testing system for retarding stop

The invention discloses a retarder dynamic synthesis detection system, which comprises a controller, a test board, a signal pick device, and a data processing and analyzing system. The test board consists of a stander, a hydraulic power impact unit, a clamping device and a sliding chute. The controller adjusts and controls the test board through a data line to cause the test board to generate pressure and impact force with different strength on the measured retarder. The signal pick device causes the received pressure and the displacement of the retarder to be collected by a pressure sensor and a displacement sensor and to be outputted to a signal collecting card through an amplifier, the signal collecting card converts the signal into the data read by a computer, a user analyzes and settles the data by using the computer and the corresponding program to obtain the dynamic response curve under the impact load of the retarder, the parameters of the return time, the terminal speed, and the ...

Light-duty diesel oil/gasoline car engine lubricating oil composition

The invention discloses an engine lubricating oil composition. The engine lubricating oil composition has quality satisfying ACEA-2010A3/B4 and SAEJ300 specification requirements, is suitable for lubricating a light-duty diesel oil/gasoline car engine under harsh conditions and is especially suitable for lubricating a direct injection light-duty diesel oil/gasoline engine having turbocharging. The engine lubricating oil composition has excellent oxidation and wear resistance, middle/low temperature dispersibility and high temperature detergency, a high base number and strong alkali maintenance capability, can effectively inhibit high-temperature piston deposit generation, can prevent piston adhesion to a ring, has a long oil change period and can provide full lubricating protection on the engine. The engine lubricating oil composition comprises at least two metal detergents, two ashless dispersants, three antioxidant, anticorrosive and antiwear agents, a viscosity index improver, a pour ...

Environment-friendly cleaning system for large-scale vehicle equipment in tunnel construction

The present invention discloses an environmentally friendly cleaning system for large-scale vehicle equipment in tunnel construction, comprising an information collection system, a data processing system and a control room; the information collection system is used to collect location information of the vehicle or equipment and transmit the information to the digital control processing system; the information collection system includes includes an infrared sensing module for sensing the location of the vehicle or equipment. The data processing system is used to generate control command information and transmit it to the control room according to the location information of the vehicle transmitted from the information collection system; the control room is used to control the ON and OFF of the spray cleaning system and the transportation system according to the control command transmitted from the data processing system; and the spray cleaning system and the transportation system are respectively controlled by the control room. The gantry type large-scale vehicle and equipment cleaning system of the present invention has simple structure design, strong operability, high cleaning efficiency and thorough cleaning.