筋膜枪组件

Lead sulfide nanocrystal as well as preparation method and application thereof

The present invention provides the use of a lead (IV)-containing compound for the preparation of chalcogenide nanocrystals of lead and a process for the production of broad band chalcogenide nanocrystals of lead in a low-cost, size-controllable and scaled process comprising contacting a lead (IV)-containing compound with an organic acid and a chalcogenide-containing agent.

Method and apparatus for laser cutting by means of laser beam guided in multi-core optical fiber, and related computer program product

In a method for laser processing, in particular for laser cutting, a workpiece (2) by means of at least one laser beam (3) which is guided in a multi-core fiber (5) in a direction towards the workpiece (2), which multi-core fiber has a plurality, in particular at least three fiber cores (6) which are arranged parallel to one another along a straight line (A), according to the invention, the number of fiber cores (6) into which the at least one laser beam (3) is coupled and/or the distribution of the laser power of the at least one laser beam (3) to the fiber cores (6) is set depending on workpiece properties or processing parameters.

Chamber structure suitable for cleaning waste in groove of grinding pad and cleaning method

The invention discloses a cavity structure suitable for cleaning waste in a grinding pad groove and a cleaning method.The cavity structure is internally provided with a cleaning cavity and a vacuum adsorption cavity which are independently arranged, and the outer wall of the cavity structure is provided with a cleaning cavity connector communicating with the cleaning cavity and a vacuum adsorption connector communicating with the vacuum adsorption cavity; the cleaning cavity connector is suitable for being connected with a cleaning device so that a cleaning medium can enter the cleaning cavity, the vacuum adsorption connector is suitable for being connected with a vacuum adsorption device so that the cleaning medium with waste entering the vacuum adsorption cavity can be sucked outwards, a lower concave cavity is further formed in the bottom of the cavity structure, and a bottom opening of the lower concave cavity is suitable for being sealed by the upper surface of the grinding pad; a ...

Plunger type water pump

The invention belongs to the related technical field of plunger pumps, and discloses a plunger type water pump which comprises a cylinder body, a shell and a suction flow distribution valve, and the cylinder body is connected with the shell; the cylinder body is provided with a first flow distribution valve hole and a plunger hole which are coaxially arranged and are communicated with each other, the suction flow distribution valve is arranged in the first flow distribution valve hole, and the plunger hole is used for accommodating the plunger; the suction flow distribution valve comprises a first valve element, a first valve shell and a first flow distribution valve seat, wherein the first valve shell and the first flow distribution valve seat are connected. One end of the first valve element penetrates through the first flow distribution valve seat and then is connected to the first valve shell. A first small channel and a first buffer groove are formed in the end face, facing the first ...

Greenhouse temperature and humidity control method based on environmental information

The invention provides a greenhouse temperature and humidity control method based on environmental information. The method comprises the following steps: acquiring optimal growth temperature and humidity data of crops; judging the current season; acquiring external meteorological environment information; environment temperature and humidity in the greenhouse are monitored, and whether temperature and humidity adjustment is started or not is judged according to the optimal temperature and humidity data; and performing temperature and humidity adjustment according to the optimal growth temperature and humidity data of the crops, the current season and the external gas phase environment information. The invention aims to provide a greenhouse temperature and humidity control method based on environmental information, and the method comprises the steps: carrying out the analysis of the growth period of a crop, carrying out the control and adjustment of the temperature and humidity according ...

Water pump shell drilling machining device with removing structure and machining method

The invention relates to the technical field of pump shell drilling machining, in particular to a water pump shell drilling machining device with a removing structure and a machining method. The water pump shell drilling device comprises a supporting base and a drilling mechanism installed on the supporting base, the drilling mechanism comprises a drilling assembly used for forming a hole groove in a water pump shell, a limiting and removing mechanism is arranged on the drilling mechanism, and the limiting and removing mechanism comprises a limiting assembly used for limiting the bursting range of the drilling assembly. The limiting assembly is provided with a removing assembly for guiding the cuttings to fall, the removing assembly is provided with a filtering assembly for removing the cuttings in the hole groove, and the removing assembly is further used for changing the gathering position of the cuttings on the filtering assembly. The extending drilling core body is limited through the ...

Lunar surface wheel escape bionic leg type mechanism

The invention belongs to the technical field of engineering bionics, and relates to a bionic bouncing leg type mechanism for releasing from a lunar surface wheel, which takes posterior limbs of a diving mouse as bionic elements and is designed to be capable of releasing from a lunar surface environment. The robot is a bionic mechanism composed of wheels, bionic thighs, shanks and feet. When no difficulty exists, the bionic mechanism rolls and runs on the lunar surface in a wheel form; when the wheels are stuck, the leg structures release the stored elastic potential energy, the foot end impacts the lunar surface to step on the ground, and the feet step off the ground under the low-gravity condition to complete escape; the length of each part of the leg type mechanism simulates the proportion of anatomical bones of the mouse, the shank is connected with the end of the foot through an elastic rope, and the foot rotates around a hinge point to store and release elastic potential energy. The ...

METHOD AND CIRCUIT FOR SUPPRESSING PULSE INTERFERENCE IN CODING AND DECODING COMMUNICATION

Disclosed are a method for suppressing pulse interference in coding and decoding communication, and a circuit for suppressing pulse interference in coding and decoding communication. The method for suppressing pulse interference in coding and decoding communication comprises: performing gain amplification and sampling on a communication signal, and recognizing a preamble part x1(i) of the communication signal; according to a valid preamble signal T1(i) and other interference signal parts N1(i), setting an amplification gain G2 of a controllable gain circuit; a subsequent communication signal which comprises load data being subjected to amplification processing of the amplification gain G2 of the controllable gain circuit and being sampled; performing suppression processing of frequency interference on sampled data X2(i) of the communication signal, so as to obtain a signal y2(i), the frequency interference of which is suppressed; then calculating a signal z2(i), the pulse interference of ...

SUBSTRATE POLISHING APPARATUS AND CONTROL METHOD

The invention relates to the technical field of substrate grinding, and provides a substrate grinding device and a control method, and the substrate grinding device comprises a polishing head and a suction cup. A first gas path channel is arranged in the polishing head; the top of the suction cup is connected to the bottom of the polishing head, and the bottom of the suction cup is provided with an air hole communicating with the first air channel and a contact face located around the air hole. The substrate is directly adsorbed through the negative pressure of the air hole, so that the installation time of loading the substrate on the polishing head can be shortened, the substrate can be firmly fixed to the bottom of the suction cup through the adsorption force of the air hole and the friction force of the contact surface, a retaining ring does not need to be arranged, and the grinding cost is reduced. Besides, when the substrate is unloaded, the first air channel can provide air pressure ...

Liquid crystal copolyester as well as preparation method and application thereof

The invention belongs to the technical field of high polymer materials, and particularly relates to liquid crystal copolyester as well as a preparation method and application thereof. The liquid crystal copolyester has the following structure: 0% < = x < = 90%, 10% < = y < = 40%, and 0.1% < = z < = 20%. According to the liquid crystal copolyester disclosed by the invention, 2, 7-acetoxynaphthalene and isophthalic acid are introduced into a molecular main chain, so that the regularity of the macromolecular main chain is destroyed, the melting point of the liquid crystal copolyester is effectively reduced, and a processing window is expanded. Meanwhile, a large number of benzene ring structures are reserved on a main chain of a liquid crystal copolyester molecule, so that the liquid crystal copolyester has relatively high thermal stability.

Composite material as well as preparation method and application thereof

The invention provides a composite material as well as a preparation method and application thereof. The composite material comprises montmorillonite and nano Cu2-xSe particles loaded on the surface and in pores of the montmorillonite. The composite material disclosed by the invention has multiple functions of extremely high lithium polysulfide adsorption performance, high conductivity, rapid lithium ion transmission performance, extremely high lithium polysulfide redox catalytic activity and the like. The Cu2-xSe nanoparticles in the composite material obtained by adopting a simple wet chemical method are smaller in particle size, the adsorption and catalytic activity of the composite material is higher, higher electrochemical capacity can be contributed, and the capacity and the energy density of the lithium-sulfur battery are further improved.

Polishing head and wafer polishing device with same

The invention discloses a polishing head and a wafer polishing device with the same. The polishing head comprises a body. The elastic membrane assembly is arranged on the body, the elastic membrane assembly comprises an inner membrane and an outer membrane which are nested with each other, the inner membrane is fixedly arranged on the bottom wall of the body, and a plurality of pressure cavities which are suitable for acting on the center area of the wafer and are independent from each other are formed in the inner membrane; the outer film is clamped on the peripheral side of the body in a sleeving mode and wraps the inner film, and a buffering gap is formed between the outer film and the inner film. In the grinding process, the inner film applies acting force to the wafer through the outer film. By arranging the elastic film assembly formed by mutually nesting the inner film and the outer film, in the grinding process, due to the fact that the counter-acting force of a wafer on the polishing ...

Polyarylate monomer as well as preparation method and application thereof

The invention discloses a polyarylester monomer as well as a preparation method and application thereof. The structural formula of the polyarylester monomer is shown in the specification, wherein R comprises a polyhedral oligomeric silsesquioxane substituent group. According to the polyarylate monomer, the large steric effect can effectively improve the torsion resistance of a main chain, the melting point of liquid crystal polyarylate is effectively reduced, and the polyarylate monomer can be used for adjusting the melting point and processability of thermotropic polyarylate.

JUICE EXTRACTOR

Disclosed is a juice extractor, comprising a base (100); a drive mechanism (200) which is installed in the base (100); and a juice extracting part (300) which is supported by and fixed to the base (100). The juice extracting part (300) comprises: a shell (700) which has an opening part (710) on the top thereof, a juice outlet (715), and a residue outlet (720); a first grinding plate (500) which can be rotatably installed in the shell (700), wherein the first grinding plate (500) comprises a body part (510) of the first grinding plate and a connecting part (520) of the drive mechanism, the body part (510) of the first grinding plate has a first grinding surface (511), and a first grinding tooth (513) is arranged on the first grinding surface (511); a second grinding plate (400) which is fixedly installed in the shell (700), wherein the second grinding plate (400) comprises a body part (410) of the second grinding plate, the body part (410) of the second grinding part has a second grinding ...

Multipurpose thermometer

... 本实用新型公开了种多用途温度计，包含温度检测模块、模数转换模块、放大电路模块、MCU模块、发声模块、显示模块、复位电路模块和供电模块；所述温度检测模块依次通过模数转换模块、放大电路模块连接MCU模块，所述发声模块、显示模块、复位电路模块和供电模块连接在MCU模块的相应端口上；本实用新型能够在工作期间实时检测温度的大小，当温度达到个极大值时，可以给出声音提醒使用者当前检测已经检测出最大值，让使用者可以及时作出相应调整。 ...

Project system integral intelligent display system and method

The invention discloses a project system integral intelligent display system and method, and belongs to the technical field of project system integral analysis. The method comprises the following steps: constructing a monitoring platform for monitoring performance assessment scores of employees; acquiring assessment score conditions of the employees in each historical project, recording each score as a node, and marking the node to generate a curve; obtaining the assessment score condition of the employee in the current project, recording the current score as a node, and generating another curve; part of curves are intercepted from the two sets of curves respectively, and the distance between the intercepted curves is calculated through a DTW model; and setting a threshold value of the regular path distance, and when the threshold value is exceeded, sending out an early warning to notify a manager to adjust the proportion of the assessment system. According to the invention, the assessment ...

Thermotropic liquid crystal polyarylester as well as preparation method and application thereof

The invention discloses thermotropic liquid crystal polyarylester as well as a preparation method and application thereof. The thermotropic liquid crystal polyarylester provided by the invention is obtained by copolymerizing the following monomers in molar percentage: 40-85% of 4-acetoxybenzoic acid; 10% to 50% of 6-acetoxy-2-naphthoic acid; and 0.5%-10% of 4-acetoxy-2-naphthoic acid. The preparation method of the thermotropic liquid crystal polyarylester comprises the following steps: mixing 4-acetoxybenzoic acid, 6-acetoxy-2-naphthoic acid, 4-acetoxy-2-naphthoic acid and a catalyst, and then carrying out melt polycondensation under a protective atmosphere, so as to obtain the thermotropic liquid crystal polyarylester. The thermotropic liquid crystal polyarylester provided by the invention has the advantages of excellent molding processing performance, good thermal stability and the like, and the preparation process is simple and suitable for large-scale industrial application.

Automatic production scheduling method and system for cigarette filter stick forming method

The embodiment of the invention provides an automatic production scheduling method and system for a cigarette filter stick forming method, and the method comprises the steps: obtaining a monthly demand plan of a self-produced filter stick of a rolling and packaging progress plan of a rolling and packaging workshop, carrying out the adjustment of the monthly demand plan of the self-produced filter stick through material consumption, obtaining the theoretical productivity and the actual productivity of all types of equipment, and carrying out the adjustment of the theoretical productivity and the actual productivity; and calculating a single-machine single-day productivity rule of the equipment, generating a forming production plan based on the monthly demand plan of the self-produced filter stick and the single-machine single-day productivity rule, and generating a daily production plan of each day in the monthly working calendar in combination with the production time, the equipment maintenance ...

Polishing head, substrate polishing device and grinding method

The invention discloses a polishing head, a substrate polishing device and a grinding method. The polishing head comprises a body; the adsorption maintaining assembly is fixedly arranged at the center position of the bottom of the body and used for adsorbing the base plate and pressing the base plate on the polishing surface; and the edge force application assembly is arranged on the peripheral side of the adsorption maintaining assembly and located below the body, and the bottom wall of the edge force application assembly is suitable for being pressed on the peripheral area of the base plate so as to adjust the polishing pressure borne by the edge area of the base plate. By arranging the edge force application assembly, the control over the grinding amount of the edge of the base plate can be adjusted; meanwhile, an adsorption maintaining assembly is further arranged, the grinding amount of the middle position of the substrate can be adjusted by adjusting the air pressure value in each ...

Sports park equipment and crowd monitoring device and method

The invention provides sports park equipment and a crowd monitoring device and method, and the device comprises a sports equipment monitoring module, a park safety monitoring module, a park environment monitoring module, a training risk monitoring module, a central processor, and a park display broadcast module. The sports equipment monitoring module, the park safety monitoring module, the park environment monitoring module, the training risk monitoring module and the park display and broadcast module are electrically connected with the central processing unit. According to the sports park equipment and crowd monitoring device and method provided by the invention, the safety and environment of a park can be monitored, the use condition of sports equipment can be monitored, the training risk of a user can be monitored, the safe operation of the park is ensured, a reference can be provided for a manager to make a decision, and the training safety of the user is ensured.

Two-step fermentation process for sour bamboo shoots

The invention discloses a two-step fermentation process for sour bamboo shoots, and relates to the technical field of food fermentation. The fermentation process comprises two steps of pure lactic acid bacteria fermentation and flavor adjustment. The method comprises the following steps: 1, pure lactic acid bacteria fermentation: carrying out activation culture on lactic acid bacteria, inoculating the lactic acid bacteria into a sucrose aqueous solution, carrying out propagation, adding a lactic acid bacteria fermentation seed solution obtained by propagation into water, adding fresh bamboo shoots, immersing the fresh bamboo shoots below the water surface, sealing, and carrying out room temperature fermentation; 2, flavor adjustment and fermentation: adding fermentation microorganisms or enzymes into the pure lactic acid bacteria fermentation system in the first step to ensure that the bamboo shoots are not exposed out of the water surface, and carrying out secondary fermentation at room ...

CoO-coated NC composite material and preparation method and application thereof

The invention provides a CoO-coated NC composite material and a preparation method and application thereof, the preparation method comprises the following steps: taking a specific wrinkled ZIF-67 flaky material obtained after NaBH4 is subjected to layer stripping treatment as a precursor, and conveniently and quickly synthesizing CoO-coated NC nanoparticles with relatively high specific surface area and good dispersity by a calcining method so as to realize quick and efficient catalytic degradation of antibiotics.

Disassembling and assembling tool and method for marine diesel engine pressure accumulator

A disassembling and assembling tool for a diesel engine pressure accumulator is characterized in that the disassembling and assembling tool is composed of a clamping ring set and two lifting plates, the clamping ring set is used for wrapping and fixing a pressure accumulation tank and comprises a pair of semicircular clamping ring bodies, a bolt and a nut, and the clamping ring set is connected into a whole through the bolt and the nut; the fastening connecting holes and the lifting holes are evenly distributed in the semicircular clamping ring lug plates, the lifting protruding plates are reasonably arranged on the outer circumferences of the semicircular clamping ring lug plates to disassemble and assemble the pressure accumulator and the pressure accumulation tank, the blank of an existing pressure accumulator disassembling and assembling tool and method is filled up, and the working efficiency is improved. The device is compact in structure, convenient to assemble and low in manufacturing ...

Electric energy meter verification method and system

The invention belongs to the technical field of wireless communication and electric energy meters, and particularly relates to an electric energy meter verification method and system, and the method comprises the steps: building a Bluetooth connection between a verification platform and a to-be-verified electric energy meter, and transmitting data through a first transmission channel or a second transmission channel; the first transmission channel is a broadcast synchronization channel; the second transmission channel is a CIS connection synchronization channel; the to-be-calibrated electric energy meter collects an electric energy meter pulse signal according to a meter calibration command sent by the calibration table, and broadcasts the collected electric energy meter pulse signal through a broadcast synchronization channel, or sends the collected electric energy meter pulse signal to the calibration table through a CIS connection synchronization channel; and the verification platform ...