多功能智慧杆（秋莲）

多功能智慧杆（金枋）

多功能智慧杆（承檐）

LED路灯灯头（覆掌）

LED路灯灯头（乘驰）

多功能智慧杆（茗芽）

多功能智慧杆（互明）

多功能智慧杆（凝萃）

多功能智慧杆（栈航）

Construct directional formula fixed stay head

... 一种建筑定向式固定支撑头，本实用新型特征是：由长方形带孔支撑板、分别固定在带孔支撑板上四个角的定位角铁、固定在带孔支撑板底面中间位置的腰孔圆管构成。本实用新型能够对一到两根次梁进行定向支撑，使交叉布置的次梁始终成直角分布，规范次梁布置格局，使整体次梁组合美观规范。利用成型定位角铁的直角特性，实现次梁的定向需要。利用带孔支撑板合适板厚，配合支撑体系上支撑件实现定向式固定支撑头强度要求。利用带孔支撑板四角处的小孔，实现将支撑体系的销钉栓接在支撑头上，不易遗失。利用腰孔圆管，实现定向式固定支撑头和支撑体系的定向联接。 ...

Comb capacitor and manufacturing method thereof

The invention provides a comb-shaped capacitor and a manufacturing method thereof. The method comprises the following steps of: alternately laminating a plurality of highly-doped polycrystalline silicon layers and lightly-doped polycrystalline silicon layers on a substrate; according to the image layout design of the comb-shaped capacitor, a mask is arranged at the upper end of the polycrystalline silicon layer, first etching is carried out, and polycrystalline silicon columns are formed; doping treatment is carried out on one side of the polycrystalline silicon column, the doping concentration of the side of the low-doping polycrystalline silicon layer is improved, and a vertical-face integral first framework with high doping concentration is formed on the side of the low-doping polycrystalline silicon layer and the high-doping polycrystalline silicon layer; the selection ratio is determined according to the doping concentration of each layer, secondary etching is carried out, the polycrystalline ...

Method for preparing diaminodiphenyl ether based on continuous catalytic hydrogenation of trickle bed reactor

The invention relates to a method for preparing diaminodiphenyl ether based on continuous catalytic hydrogenation of a trickle bed reactor, which adopts a supported nickel-based catalyst and adopts a filling mode that an upstream part is filled with a nickel-based catalyst with higher nickel content and a downstream part is filled with a nickel-based catalyst with lower nickel content in a catalyst bed layer. Thermodynamic equilibrium is achieved by utilizing reaction heat generated by catalytic hydrogenation reaction, on one hand, reaction energy consumption is reduced, and on the other hand, reaction risks caused by violent heat release and generation of other by-products can be avoided; besides, by optimizing and controlling the operation conditions of catalytic reaction temperature, reaction pressure and air speed, the generation of byproducts such as nitro incomplete hydrogenation, hydroxylamine condensation and amino azotization is effectively inhibited, and the reaction conversion ...

Application of lactobacillus plantarum in increasing alkaloid and/or polysaccharide in motherwort

The invention relates to the technical field of traditional Chinese medicine fermentation, and provides application of lactobacillus plantarum in increasing alkaloid and/or polysaccharide in motherwort. The herba leonuri is fermented through lactobacillus plantarum, so that the alkaloid content of the fermented herba leonuri is averagely increased by 28.24% and the polysaccharide content of the fermented herba leonuri is averagely increased by 58.50% compared with an unfermented group, and the increase is extremely remarkable (Plt; 0.01) of the substrate. When the alkaloid content reaches the maximum value, the alkaloid content is averagely increased by 44.51% compared with that of an unfermented group, and when the polysaccharide content reaches the maximum value, the polysaccharide content is averagely increased by 100.03% compared with that of the unfermented group. Results show that the content of part of active ingredients before and after fermentation of motherwort is remarkably increased ...

Multi-chip spliced CMOS flat panel detector and splicing method

The invention discloses a multi-chip spliced CMOS flat panel detector and a splicing method. A CMOS flat panel detector chip comprises a row gating circuit and a pixel array. The row gating circuit comprises a D trigger, a phase inverter, a data selector MUX1 and a data selector MUX2. The IN1 input end of the data selector MUX1 is used for receiving a BIN signal, and the control end of the data selector MUX1 is used for receiving an SEL signal; and the phase inverter is connected with the control end of the data selector MUX1 of the even-numbered line. The BIN signal and the SEL signal are processed through a data selector MUX1 and a data selector MUX2, and then the Nth line in the pixel array is stitched with the splicing line and read. According to the invention, two data selectors and one selection signal SEL are added, and the two data selectors combine the splicing seam and the chip pixel through the combination of the BIN signal and the SEL signal, so that the splicing seam is eliminated ...

Server and network connection hardware fault self-checking device thereof

The invention discloses a network connection hardware fault self-checking device, which relates to the technical field of servers, and comprises a network cable plug inserted in a network interface on a case, a network cable connected with the network cable plug and wound into a spiral shape, and an iron core inserted in an internal spiral space of the network cable, and the detection assembly is matched with the iron core and is used for judging whether a physical network is conducted or not by detecting whether an induced magnetic field exists at the end part of the iron core or not. According to the network connection hardware fault self-checking device disclosed by the invention, when a server has a network connection fault, a worker can judge whether a physical network is smooth or not only by checking the detection result of the detection assembly, so that the physical fault or the software fault is specifically checked and maintained, and the working efficiency is improved. When ...

多功能智慧杆（贯虹）

多功能智慧杆（蓄锐）

多功能智慧杆（翠羽）

多功能智慧杆（静远）

多功能智慧杆（玉梭）

导轨灯(60009002)

多功能智慧杆（霜岩）

Low-illumination high-definition optical lens

An optical system of the lens comprises a first lens, a second lens, a third lens, a diaphragm, a fourth lens, a fifth lens and a sixth lens which are sequentially arranged from left to right along a light incident light path, the first lens is a negative meniscus lens, the second lens is a negative meniscus lens, the third lens is a biconvex positive lens, and the sixth lens is a biconvex positive lens. The fourth lens is a negative meniscus lens, the fifth lens is a biconvex positive lens, the sixth lens is a positive meniscus lens, the fourth lens and the fifth lens form a cemented lens group, the first lens, the fourth lens and the fifth lens are all glass spherical lenses, and the second lens, the third lens and the sixth lens are all glass aspheric lenses. According to the optical system, an optical structure formed by combining the three glass spherical lenses and the three glass aspherical lenses is adopted, high light transmission capacity is achieved, it is guaranteed that the ...

Bipolar plate of water-cooled hydrogen fuel cell and preparation method

The invention relates to the technical field of hydrogen energy, and particularly discloses a water-cooled hydrogen fuel cell bipolar plate and a preparation method thereof. The water-cooled hydrogen fuel cell bipolar plate comprises a frame and a core body integrated in the frame in an embedded manner, the core body comprises a gas diffusion pipe row which is integrated in the frame and is internally provided with a gas diffusion flow channel, and a water cooling pipe row which is arranged in the gas diffusion pipe row and is provided with a cooling water flow channel; a water inlet, a water outlet, an air inlet and an air outlet are formed in the frame; the water inlet and the water outlet are respectively communicated with the cooling water flow channel, and the gas inlet and the gas outlet are respectively communicated with the gas diffusion flow channel; the water cooling tube row is made of a premix I prepared from ceramic or graphite powder, the gas diffusion tube row is made of ...

LED路灯灯头（飞梭）

多功能智慧杆（凤鸣）

多功能智慧杆（临风）

多功能智慧杆（芳枝）

多功能智慧杆（升腾）

多功能智慧杆（太阳能睿兴）

排水机器人

多功能智慧杆（流云）

多功能智慧杆（慧炬）

Drought-resistant endophytic fungus W10 for tobacco seedlings

The invention discloses a drought-resistant endophytic fungus W10 for tobacco seedlings. Tobacco is one of important economic crops in China and plays a crucial role in economic development in China, but in recent years, tobacco planting and production are often limited by multiple factors such as diseases and insect pests, heavy metal stress and drought stress, so that tobacco plants grow slowly in the seedling stage or the field stage, and the yield and quality of tobacco leaves are seriously threatened. The endophytic fungus liquid separated from K326 is applied to soil of the overground parts and roots of different varieties of tobacco seedlings in a watering manner, so that the biomass and agronomic characters of the tobacco seedlings can be remarkably improved.

Variable cross-section pier column top formwork construction method

The invention discloses a variable cross-section pier column top formwork construction method, and relates to the technical field of building construction. Comprising the steps that firstly, a pier body is poured, and after a first pier body section and a second pier body section are poured, a wall-attached support is installed; after three sections of the pier body are poured, a jacking system is installed and comprises a C-shaped frame, a hydraulic oil cylinder, an upper reversing box and a lower reversing box, the C-shaped frame is fixedly connected with the wall-attached support, and pawls are arranged on the upper reversing box and the lower reversing box; after four sections of the pier body are poured, a rail is installed, a ladder baffle steel plate is welded to a web of the rail, the rail is arranged on the C-shaped frame in a penetrating mode, a pawl is movably connected with the ladder baffle steel plate, and a triangular supporting bracket is arranged at the top end of the rail ...

TENOFOVIR ALAFENAMIDE COMPLEX, PREPARATION METHOD THEREFOR AND USE THEREOF

The present invention relates to tenofovir alafenamide complex represented by formula II. The present invention also relates to a preparation method for said tenofovir alafenamide complex, pharmaceutical compositions containing the tenofovir alafenamide complex, and uses of the tenofovir alafenamide complex in preparing medicines for preventing and/or treating virus infection, especially Hepatitis B Virus (HBV) and/or Human Immunodeficiency Virus (HIV) infection.

Precision-controllable modulation optical micro-electro-mechanical structure

The invention provides a precision controllable modulation optical micro-electro-mechanical structure, which comprises a suspension mass block, a plurality of suspension tethers, a photonic crystal microcavity, a suspension optical waveguide, a first connecting lacing, a suspension beam, a second connecting lacing, a rigid block body and a capacitor, and is characterized in that a first capacitor end of the capacitor is fixed on the suspension beam, and a second capacitor end is fixed on the rigid block body. The optical micro-cavity is modulated by using a capacitance modulation method, so that the optical micro-cavity produced by a photoetching process can be corrected, the actual resonant wavelength of the photonic crystal micro-cavity is perfectly matched with the designed working wavelength, and the offset of the resonant wavelength caused by the change of a working environment can be adjusted, thereby improving the measurement precision. According to the invention, the capacitor only ...

6mm monitoring optical lens and imaging method thereof

The invention relates to a 6mm monitoring optical lens and an imaging method thereof. An optical system of the lens is composed of a first lens, a second lens, a third lens, a diaphragm, a fourth lens, a fifth lens and a sixth lens which are sequentially arranged from left to right along a light incident light path. Under the condition that retroflexion caused by aspheric coefficients is not considered, the first lens is a meniscus negative lens, the object side surface of the first lens is a convex surface, and the image side surface of the first lens is a concave surface; the second lens is a biconvex positive lens; the third lens is a biconcave negative lens; the fourth lens is a biconvex positive lens; the fifth lens is a biconvex positive lens; the sixth lens is a biconcave negative lens; the fifth lens and the sixth lens form a balsaming lens group; wherein the first lens, the second lens, the third lens, the fifth lens and the sixth lens are spherical lenses, and the fourth lens ...

VEHICLE BODY

A vehicle body (10000) comprises a body frame, a front bumper (400), an engine cover (500), a top cover (600), a trunk cover (700), a tailgate (800), two front fenders (900), two vehicle doors (1100), and two rear fenders (1200). The body frame comprises an engine compartment frame (100), a driving compartment frame (200), a trunk frame (300), a front enclosing board assembly (203), a rear enclosing board assembly (204), and a floor panel (205). The top cover (600) is adapted to be fixedly connected, above the driving compartment frame (200), to the driving compartment frame (200). A front end of the top cover (600) is fixedly connected to the front enclosing board assembly (203). A rear end of the top cover (600) is fixedly connected to the rear enclosing board assembly (204). The trunk cover (700) is adapted to be pivotably connected, above the trunk frame (300), to the rear enclosing board assembly (204). The tailgate (800) is adapted to be pivotably connected, behind the trunk frame ...

BETRIXABAN SALTS AND PREPARATION METHOD AND USE THEREOF

The present invention relates to betrixaban salts as shown by formula II, wherein the method for preparing these salts is simple, the crystal form is easy to control, the stability and solubility are good, and the salts are suitable for preparing a variety of preparations. The present invention also relates to the method for preparing these salts, pharmaceutical compositions comprising these salts, and the use of these salts in the preparation of medicaments for the prevention and treatment of diseases characterized by adverse thrombus formation in mammals.

Natural gas emptying and recycling device, system and method based on pressure difference

The invention provides a natural gas emptying and recycling device, system and method based on pressure difference. A natural gas emptying and recycling device based on pressure difference comprises a first valve used for being connected with a high-pressure mechanism, a self-operated pressure regulating valve used for reducing the pressure of natural gas and a second valve used for being connected with a low-pressure mechanism, one end of the first valve is connected with the first end of the self-operated pressure regulating valve through a pipeline, and the other end of the first valve is connected with the second end of the self-operated pressure regulating valve through a pipeline. The second end of the self-operated pressure regulating valve is connected with one end of the second valve through a pipeline, and the third end of the self-operated pressure regulating valve is connected with the pipeline between the self-operated pressure regulating valve and the second valve through ...

Urban underpass tunnel lighting aided design method and device

The invention discloses a city underpass tunnel lighting aided design method and device, and relates to the aided design field, and the technical scheme is characterized in that the method comprises the following steps: tunnel parameters are acquired, tunnel lighting indexes are calculated through the tunnel parameters, and the lighting indexes comprise total brightness uniformity and longitudinal uniformity; obtaining tunnel lighting condition parameters, and calculating the total brightness uniformity and the longitudinal uniformity through the tunnel lighting condition parameters; judging whether the total uniformity and the longitudinal uniformity are within the range of lighting indexes or not; and if the total uniformity and the longitudinal uniformity are not within the illumination index range, re-acquiring the adjusted tunnel illumination condition parameters until the total uniformity and the longitudinal uniformity are within the illumination index range. The purpose of rapidly ...

Method for detecting water content of vinasse

According to the vinasse moisture content detection method based on the near infrared spectrum, data preprocessing and analysis are conducted through measurement of the near infrared reflection spectrum in combination with a physicochemical metrology method, a vinasse moisture content prediction model is established, and then rapid and accurate measurement of the vinasse moisture content is achieved. The method has the advantages that rapid and nondestructive detection can be realized without consuming chemical reagents, the near-infrared spectrum test means has better test stability, the detection result has higher repeatability, and in the near-infrared band, the test signal can be transmitted in the optical fiber in a long distance, so that the method is suitable for large-scale popularization and application. Therefore, long-distance data transmission can be performed through the optical fiber, automation and integration of the whole detection process are realized, parallel processing ...

LUGGAGE COMPARTMENT FRAME AND VEHICLE HAVING SAME

A luggage compartment frame (100) comprises: an upper luggage compartment frame (10) and a lower luggage compartment frame (20). The upper luggage compartment frame (10) has a left column assembly (11a) and a right column assembly (11b); the left column assembly (11a) is connected to the left side of the lower luggage compartment frame (20), and the right column assembly (11b) is connected to the right side of the lower luggage compartment frame (20); the lower luggage compartment frame (20) and the upper luggage compartment frame (10) together define an accommodating space (c); one of the upper luggage compartment frame (10) and the lower luggage compartment frame (20) is provided with a damper mounting portion (13). The luggage compartment frame features light weight and ease of machining, and facilitates improving the rigidity of the complete vehicle.

CABIN FRAME AND VEHICLE HAVING SAME

A cabin frame and a vehicle having same. The cabin frame (200) comprises a left side roof rail (2011), a right side roof rail (2012), a front roof crossbeam (2013), a rear roof crossbeam (2014), a lower cabin frame (202), a dash panel (203), a floor panel (205), and a back panel (204). The left side roof rail (2011), the right side roof rail (2012), the front roof crossbeam (2013), and the rear roof crossbeam (2014) together form a roof frame assembly (201); the lower cabin frame (202) is fixed below the roof frame assembly (201); the dash panel (203) is fixed to the front of the lower cabin frame (202); the floor panel (205) is fixed at the bottom of the lower cabin frame (202); the back panel (204) is fixed to the back of the lower cabin frame (202). In this way, the structure of the cabin frame is modularized, the number of parts required during assembling of the cabin frame is reduced, and the assembling of the cabin frame is facilitated.

OPTICAL FIBER PREFORM AND MANUFACTURING METHOD THEREOF

An optical fiber preform and the manufacturing method thereof are disclosed. The ratio of the diameter of the optical fiber core rod to the diameter of the core layer is 2.1-2.8. The optical fiber core rod is fitted within a small cladding tube, which is made of fluorine-doped quartz glass. The optical fiber core rod and the small cladding tube are melted and combined together to form an assembled core rod. The ratio of the diameter difference between the assembled core rod and the optical fiber core rod to the diameter of the core layer is 0.5-2.2. The fluorine content ΔF of the small cladding tube made of fluorine-doped quartz glass is -0.20% to -0.35%, and the hydroxyl content is equal to or less than 500 ppb. A large cladding tube made of quartz glass is fitted outside of the assembled core rod, or a SiO2 glass jacket is deposited directly onto the assembled core rod. The ratio of the effective diameter of the optical fiber preform to the diameter of the assembled core rod is 2.5-5.6 ...

PREPARATION METHOD OF INTERMEDIATE OF FEBUXOSTAT

A preparation method of ethyl 2-(3-formyl-4-hydroxyphenyl)-4-methyl-5-thiazolecarboxylate as a key intermediate of febuxostat is provided. The preparation method comprises: using thioacetamide and p-cyanophenol as raw materials which are reacted in an acid aqueous solution to obtain 4-hydroxy thiobenzamide, and reacting 4-hydroxy thiobenzamide with ethyl 2- chloroacetoacetate to obtain ethyl 2-(4-hydroxyphenyl)-4-methyl-5-thiazolecarboxylate, and reacting the obtained compound with methenamine in the presence of polyphosphoric acid and methanesulfonic acid to obtain ethyl 2-(3-formyl-4-hydroxyphenyl)-4-methyl-5-thiazolecarboxylate.

Large-aperture day and night wide-angle lens

An optical system of the lens comprises a first lens, a second lens, a third lens, a diaphragm, a fourth lens, a fifth lens and a sixth lens which are sequentially arranged from left to right along a light incident light path, the first lens is a meniscus negative lens, the second lens is a biconcave negative lens, and the third lens is a biconcave negative lens. The third lens is a biconvex positive lens, the fourth lens is a biconvex positive lens, the fifth lens is a meniscus negative lens, and the sixth lens is a biconvex positive lens; the first lens, the second lens and the sixth lens are all glass spherical lenses; the second lens, the fourth lens and the fifth lens are all plastic aspheric lenses. The design of mixing the three glass lenses and the three plastic lenses is adopted, and the shapes and the focal power of the lenses are reasonably matched, so that the requirements of large aperture, large target surface, day and night confocal and the like are met while the optical ...

Early support head of tearing open of building templates slidingtype

... 一种建筑模板滑动式早拆支撑头，本实用新型特征是：包括固定导轨和套设在固定导轨上的升降托板构成，模板主梁设在升降托板上部，模板次梁设在模板主梁上部，模板次梁上部顶住顶面模板；在升降托板底部设有一滑动开关板。本实用新型的有益效果是，通过此实用新型可以实现主梁，次梁，顶木模板的循环使用。只需要配置3套早拆头和支撑杆，就可以满足多层楼面的浇筑需要，大大的降低了工程中的模板成本。本实用新型操作简便，很大程度上减少了对操作人员技能的依赖。使模板体系更加合理，更好为现代建筑服务。 ...

Manufacturing method of semiconductor structure and semiconductor structure

The invention provides a manufacturing method of a semiconductor structure and the semiconductor structure, and the method comprises the steps: forming a substrate which comprises an active region and at least one gate structure group, each gate structure group comprises a plurality of spaced gate structures, each gate structure comprises a gate and a first gate dielectric layer covering the side surface of the gate, the channel region of the active region covers at least part of the side surface of each gate structure in the gate structure group; and forming a source electrode and a drain electrode on the substrate, the source electrode being in contact with the source region of the active region, and the drain electrode being in contact with the drain region of the active region. According to the method provided by the invention, the plurality of spaced gate structures are formed on the substrate, and the gate of each gate structure is separated from the active region through the first ...

DISPERSION COMPENSATION FIBER

A dispersion compensation fiber comprises a fiber core and cladding. The fiber core is a core layer mainly doped with germanium and having a positive relative refractive index difference. The cladding covering the fiber core comprises a sunken cladding mainly doped with fluorine, an annular cladding mainly doped with germanium, a matching cladding mainly doped with fluorine, and an outermost mechanical cladding in order. Relative refractive index differences of the fiber core and the claddings are as follows: Δ1% is 1.55% to 2.20%, Δ2% is -0.55% to -0.30%, Δ3% is 0.40% to 0.65%, Δ4% is -0.20% to -0.01%, and Δ5% is 0. Radius ranges, from R1 to R5, of the fiber core and the claddings are as follows: R1 is 1.4 μm to 1.7 μm, R2 is 4.1 μm to 4.8 μm, R3 is 6.7 μm to 8.8 μm, R4 is 10 μm to 17 μm, and R5 is 38 μm to 63 μm. The dispersion compensation fiber has a high negative dispersion coefficient and a suitable negative dispersion slope at the wave band C, has good welding performance, and can ...

BRAKE AND ELECTRICALLY-CONTROLLED ACTUATOR

A brake and an electrically-controlled actuator, the brake comprising: a drive mechanism, a planetary gear transmission mechanism, an output gear (3), and an output shaft (4); the output gear (3) is fixed on the output shaft (4), a first end of the planetary gear transmission mechanism is connected to the drive mechanism, and a second end of the planetary gear transmission mechanism is connected to the output gear (3), such that the drive mechanism drives the first end of the planetary gear transmission mechanism so that the second end of the planetary gear transmission mechanism drives the output gear (3) to rotate axially around the output shaft (4) to drive the rotation of the output shaft (4). The brake has a small overall volume, and achieves the technical effect of making the overall structure of the brake more compact.

Manufacturing method of semiconductor structure and semiconductor structure

The invention provides a manufacturing method of a semiconductor structure and the semiconductor structure, and the method comprises the steps: forming a substrate which comprises an active region; forming an oxygen-free isolation layer on the substrate, wherein the oxygen-free isolation layer covers at least part of the active region; and forming an interlayer dielectric layer on the oxygen-free isolation layer, wherein the oxygen-free isolation layer is used for separating the active region from the interlayer dielectric layer. The oxygen-free isolation layer is arranged to cover at least part of the surface of the active region before the interlayer dielectric layer is formed, and when the interlayer dielectric layer is subsequently formed, oxygen and hydrogen generated in the forming process cannot permeate into the active region under the isolation effect of the oxygen-free isolation layer, so that oxygen vacancies are prevented from being formed in the active region, and the service ...

Atomic interferometer and method for synchronously measuring gravitational acceleration and magnetic field

The invention provides an atom interferometer and method for synchronously measuring gravitational acceleration and a magnetic field, and belongs to the technical field of gravitational field survey, and the method comprises the steps: carrying out the initial state preparation of a cold atomic group through the polarized light of linear polarization; the cold atomic group descends to enter an interference time sequence, and a Bragg laser pulse and an RF (Radio Frequency) pulse are applied to the cold atomic group through Bragg light and an RF field, so that the cold atomic group generates atomic interference of a momentum state and atomic magneton energy state interference; the cold atomic group freely falls to a detection area, Raman light is applied to the interfered cold atomic group, and atomic population detection of a momentum state and atomic population detection of a magneton energy level state are carried out; pumping light is applied to the cold atomic group, the total number ...

HIGH-PURITY FEBUXOSTAT AND THE METHOD FOR PREPARATION

A febuxostat which purity is no less than 99.0％, method for preparation thereof, and pharmaceutical composition thereof. The said method for preparation includes recrystalling febuxostat in mixed solvent. The said pharmaceutical composition can be used in manufacture of medicaments for treating diseases associated with hyperuricemia.

Financial data cloud sharing method and device based on rapid transmission and electronic equipment

The invention relates to the technical field of data sharing, and discloses a financial data cloud sharing method based on rapid transmission, which comprises the following steps: acquiring financial data information, and performing format conversion on financial data in the financial data information to obtain standard financial data; performing business processing on the standard financial data to obtain shared financial data; performing data coding on the shared financial data to obtain a data coding stream; cloud transmission paths of financial data are obtained, a data transmission index of each cloud transmission path is calculated, and a data weight is distributed to each cloud transmission path according to the data transmission index; and transmitting the data coding stream to a preset cloud database according to the data weight corresponding to each cloud transmission path to obtain a cloud database after financial data information sharing. The invention further provides a financial ...

Hybrid precoding method based on dynamic subarray in super-large scale MIMO

The invention discloses a hybrid precoding method based on a dynamic sub-array in super-large scale MIMO. The hybrid precoding method comprises the following steps: step 1, designing the dynamic sub-array according to a downlink channel matrix H and calculating an analog precoding matrix FRF; step 2, calculating a digital precoding matrix FBB according to the downlink channel matrix H and the analog precoding matrix FRF; and step 3, according to the analog precoding matrix FRF and the digital precoding matrix FBB, carrying out hybrid precoding on the input multi-path data stream and outputting the data stream. According to the method, the block sparse characteristic of the channel matrix of the super-large-scale MIMO system is fully utilized, and the spectrum efficiency close to the optimal spectrum efficiency of the super-large-scale MIMO hybrid precoding system can be obtained; fairness of different user terminals is considered, so that the spectrum efficiency difference of the different ...

Clothing design strip pasting device

The invention discloses a strip pasting device for costume design, and belongs to the technical field of costume design auxiliary machinery. The costume designing strip pasting device comprises a support and an extrusion plate used for strip pasting and further comprises a hydraulic cylinder, a sliding hole is formed in the top end of the support, and a piston of the hydraulic cylinder is in sliding connection with the sliding hole; the connecting shaft is connected with a sliding block, and a sliding groove in the vertical direction is formed in the support; the opening mechanism comprises a first connecting rod, a second connecting rod, a first roller and a second roller, one end of the first connecting rod is in pivot connection with the connecting shaft, the other end of the first connecting rod is in pivot connection with the first roller, and a first coil spring is arranged at the joint of the first connecting rod and the connecting shaft; a second coil spring is arranged at the joint ...

DEVICE AND METHOD FOR MANUFACTURING OPTICAL FIBER PREFORM OUTSIDE TUBE

A device and method for manufacturing an optical fiber preform outside the tube; the device comprises a rack, a rotating chuck and a blast burner assembly; the rotating chuck or blast burner assembly is connected to a movable base; the blast burner assembly communicates with fuel gas and a chemical raw material supply system; the present invention is characterized by having a plasma generator; and the inlet end of the plasma generator communicates with a doping source, and the outlet end of the plasma generator is connected to a spray head. The device and method utilize a plasma generator to plasmatize gas containing F or other doping elements, thus increasing the doping efficiency of the outside method, and avoiding the problem of preform powder cracks caused by excessive content of doped F. The device is additionally provided with an atomizer, improving solution ionization.

Network capacity expansion method and device, electronic equipment and computer readable storage medium

The embodiment of the invention provides a network capacity expansion method and device, electronic equipment and a computer readable storage medium, and the method comprises the steps: inputting the current PRB utilization rate of each cell into a pre-trained traffic prediction model corresponding to the type of each cell, and obtaining the theoretical traffic of each cell, according to the current actual flow and the theoretical flow of each cell, predicting the increased flow of each cell; according to the increased flow of each cell and a preset evaluation parameter, determining a target cell having a capacity expansion demand in each cell; determining a network capacity standard of the target cell according to a preset value identifier of the target cell, and monitoring whether the target cell meets a capacity expansion condition according to the network capacity standard; and when it is monitored that the target cell meets the capacity expansion condition, the capacity expansion scheme ...

METHODS FOR PREPARING LARGE-DIMENSION OPTICAL FIBER PREFORM AND OPTICAL FIBER

Methods for preparing a large-dimension optical fiber preform and an optical fiber are provided. The method for preparing the preform comprises steps of depositing a depressed cladding, an inner cladding and a core in sequence inside a fluorine-doped or pure silica glass substrate tube; melting and collapsing the deposited tube to obtain a solid core rod; fitting the solid core rod with a cladding tube to obtain the preform, or depositing an outer cladding surrounding the solid core rod to obtain the preform. The preform is directly drawn to the optical fiber, or it is firstly drawn to a small preform, then the small preform is drawn to the optical fiber. The bare optical fiber is coated with two layers of coating material to obtain a single mode optical fiber with advantages of high fatigue resistance parameter, bending insensitive and low water peak. The preform having large dimension, long drawing length can be obtained by the method. Additionally, the method is simple and cost-efficient ...

Thin film transistor and preparation method thereof

The thin film transistor comprises at least one thin film transistor unit, the thin film transistor unit at least comprises a grid electrode composite layer and an active layer which are arranged on a substrate, the active layer comprises a first part and a second part which are connected with each other, the first part extends along a first direction, and the second part extends along a second direction. The first portion extends along a first direction, the second portion extends along a second direction, the first direction is different from the second direction, the second direction is not parallel to the plane where the substrate is located, the first portion is arranged on the side, away from the substrate, of the gate composite layer in a stacked mode, a first via hole is formed in the gate composite layer, and a second via hole is formed in the second portion. At least part of the second part is arranged in the first via hole, and a channel is formed in the part, opposite to the ...

Method and device for improving dynamic range of flat panel detector in trigger mode

The invention relates to a method and device for improving the dynamic range of a flat panel detector in a trigger mode, and the method comprises the steps: detecting a time interval of a trigger signal; when the time interval is the first time interval of the trigger signal, triggering to generate a pulse signal after the first time interval of the trigger signal, and controlling the flat panel detector to read out an image data stream once by using the pulse signal and generate a frame of image; when the time interval is the second time interval or the time interval after the second time interval of the trigger signal, triggering to generate a plurality of pulse signals in one time interval of the trigger signal, and controlling the flat panel detector to read out an image data stream once by using each pulse in the plurality of pulse signals; performing arithmetic average processing on a plurality of image data streams read by the flat panel detector within a time interval of the trigger ...

PREPARATION METHOD FOR BIOLOGICAL TISSUE ENGINEERING STENT BY SOLUTION SPRAYING

A preparation method for a biological tissue engineering stent by solution spraying, comprising the following steps: (1) dissolving a biomedical material to obtain a biomedical material aqueous solution having a concentration of 2-50%; (2) performing solution-spraying spinning by using a high-pressure air jet as a drawing power, and receiving spun fibers by a spun fiber receiver to prepare a biological tissue engineering stent. The fiber diameter of the biological tissue engineering stent is 100 nm-10 μm, so that a human extracellular matrix structure can be imitated to the greatest extent. The prepared biological tissue engineering stent has a large specific surface area, can provide a good microenvironment for the survival of cells, and facilitates the adhesion, differentiation, and proliferation of cells.

IMPEDANCE MATCHING-BASED DEVICE WHICH DOES NOT BLOCK WIRELESS SIGNAL

The present invention relates to an impedance matching-based device which does not block a wireless signal, formed by construction materials having two different dielectric constants and periodically stacked in one direction. The impedance matching-based device which does not block a wireless signal of the present invention may be designed as a wall body, and increases the permeability of microwaves such that no angle causes blockage of a wireless signal, thus accomplishing unobstructed transmission of wireless signals; in addition, the materials used to form the wall body are polypropylene and concrete; in contrast to a noble-metal aperture array series, a microscopic circuit electronic component is expanded to a macroscopic wall body application and manufacturing costs are significantly reduced at the same time.

Method for preparing rocuronium bromide intermediate

The invention discloses a method for preparing a rocuronium bromide intermediate, and belongs to the technical field of rocuronium bromide intermediate preparation. The preparation method comprises the following steps: carrying out oxidation reaction on 17-acetoxy-5alpha-androstane-2, 16-diene serving as a raw material and a first oxidant to generate a primary intermediate 2, 3-epoxide, carrying out reaction on the primary intermediate 2, 3-epoxide and morpholine to open the ring of epoxy so as to introduce morpholinyl into the 2-site to produce a morpholinyl intermediate, adding a second oxidant to react to obtain an intermediate 16, 17-epoxide, and separating the intermediate 16, 17-epoxide from the intermediate 16, 17-epoxide. The intermediate 16 and 17-site epoxide is subjected to ester group hydrolysis under an alkaline condition to obtain a hydrolysate, the hydrolysate reacts with pyrrolidine, pyrrolyl is introduced into the 16 site to obtain a carbonyl compound, and finally 17-site ...

Neural network activation function calculation device, chip and equipment

The invention provides a neural network activation function calculation device, a chip and equipment. The neural network activation function calculation device comprises a first LUT unit, a weighting unit, a second LUT unit and a multiplication unit, wherein the first LUT unit is used for obtaining an activation function molecular value corresponding to a first parameter by looking up a table; wherein the first parameter is a difference value between a value of a neuron of the neural network and a maximum value of the neuron, and the activation function molecular value is an exponential function value taking the first parameter as an independent variable; the weighting unit is used for weighting the activation function molecular values corresponding to a plurality of neurons of the neural network to obtain a fusion result; the second LUT unit is used for obtaining the reciprocal of the fusion result through table look-up; and the multiplication unit is used for carrying out multiplication ...

HIGH PURIFIED (2Β,3Α,5Α,16Β,17Β) -2-(4-MORPHOLINYL)-16-(1-PYRROLIDINYL)-ANDROSTANE-3,17-DIOL OR COMPOSITION CONTAINING IT AND ITS PREPARATION METHOD

High purified (2β,3α,5α,16β,17β) -2-(4-morpholinyl)-16-(1-pyrrolidinyl)-androstane-3,17-diol (formula III) or composition containing it and their use in preparing rocuronium bromide (formula I) are disclosed.

BENDING INSENSITIVE SINGLE MODE OPTICAL FIBRE

A bending insensitive single mode optical fibre, comprising a core and a cladding. The diameter of the core is 7.6μm - 8.4μm, and the relative refractive index difference Δ1 thereof is 4.66 × 10—3 ~ 6.12 × 10—3. The cladding outside the core comprises an inner cladding, a hollow outer cladding and an outer cladding in sequence from inside to outside. The diameter of the inner cladding is 17.4μm - 20μm, and the relative refractive index difference Δ2 thereof is -0.1 × 10—3 ~ 0.1 × 10—3. The diameter of the hollow outer cladding is 28μm - 32μm, and the relative refractive index difference Δ3 thereof is -4.37 × 10—3~-7.25 × 10—3. By optimizing the depth and width of the hollow outer cladding of the optical fibre, the optical fibre not only has a lower additional bending loss, but also has a stable mechanical property and a uniform material composition. On the basis of keeping effective mode field diameters and bending properties, the process control difficulty is reduced, and the processing ...

PREPARATION METHOD FOR MORPHINAN BROMIDE QUATERNARY AMMONIUM SALT

Disclosed is a preparation method for a morphinan bromide quaternary ammonium salt as represented by Formula (I). The method comprises: transforming a compound as represented by Formula (II) in a compound as represented by Formula (I) by an ion-exchange using a brominated strongly basic anion-exchange resin. The definitions of A, R1, R1 and X- found in Formula (I) and Formula (II) are as presented in the description.

Vertical two-dimensional field effect device and manufacturing method thereof

The invention provides a vertical two-dimensional field effect device and a manufacturing method thereof, and the method comprises the steps: arranging a first forming mask and a first etching mask which are intersected with each other on the surface of a substrate according to the graphic design of the vertical two-dimensional field effect device, the width of the first forming mask is equal to the thickness of a field effect transistor unit, and the width of the first etching mask is equal to the thickness of the field effect transistor unit; the distance between the first etching masks is equal to the length of the field effect transistor unit, and performing first etching to form a first groove with a first depth; the reserved parts of the lower parts of the first forming mask and the first etching mask respectively form a vertical field effect device prototype and a tension skeleton; and performing second etching to form a second groove with a second depth, and performing a post-processing ...

BEND-PROOF MULTIMODE OPTICAL FIBER

A bend-proof multimode optical fiber comprises a core layer and cladding layers. The cladding layers, from inner to outer, comprise an inner cladding layer, a sunken ring, a rising ring, and a sunken outer cladding layer. The core layer has the radius R1 being 23-27 microns, and the refractive index section of the core layer is a parabola. The unilateral thickness W2 of the inner cladding layer is 0-2.5 microns, and the relative refractive index difference Δ2 of the inner cladding layer is -0.1% to 0.1%. The unilateral thickness W3 of the sunken ring is 0.5-6 microns, and the minimum relative refractive index difference Δ3min of the sunken ring is -0.1% to -0.3%. The unilateral thickness W4 of the rising ring is 0.5-10 microns, and the rising ring is a pure silica layer. The unilateral thickness W5 of the sunken outer cladding layer is 17-39 microns, and the minimum relative refractive index difference Δ5min of the sunken outer cladding layer is -0.15% to -0.6%, and Δ3min > Δ5min. The multimode ...

MULTIFUNCTIONAL EMERGENCY LED BULB WITH STAND-BY POWER SUPPLY

A multifunctional emergency LED bulb with a stand-by power supply. The bulb comprises a CC-CV control circuit, a battery charging and discharging protection circuit, a battery, a charging state display module, a UPS digital detection control circuit, an LED dimming circuit and an LED light-emitting source; the UPS digital detection control circuit is connected to the CC-CV control circuit, the battery charging and discharging protection circuit, the battery and the LED dimming circuit; the CC-CV control circuit, the battery charging and discharging protection circuit, the battery and the charging state display module are connected successively; the LED dimming circuit is connected to the LED light-emitting source; the CC-CV control circuit is connected to a mains power supply; a positive electrode end of the LED light-emitting source is connected to the LED dimming circuit; and a negative electrode end of the LED light-emitting source is connected to a UPS digital dimming control circuit ...

X-ray detector quality detection method and system, storage medium and electronic equipment

The invention discloses an X-ray detector quality detection method and system, a storage medium and electronic equipment, and the method comprises the steps: obtaining an original bright field image obtained through the shooting of an X-ray detector, and correcting the original bright field image to obtain a corrected bright field image; determining a target parameter of the corrected bright field image, when the target parameter exceeds a corresponding threshold range, determining that the corrected bright field image is an abnormal image, otherwise, determining that the corrected bright field image is a normal image; and when the corrected bright field image is an abnormal image, determining that the quality of the X-ray detector is abnormal, otherwise, determining that the quality of the X-ray detector is normal. By detecting the quality of the X-ray image shot by the X-ray detector, the production quality of the X-ray detector is monitored, so that the research and development of the ...

Convergence piece, convergence assembly and power supply rack

Disclosed is a bus member, comprising: a main body part having an upper end and a lower end and capable of electrically connecting an upper power supply module and a lower power supply module; the connecting part and the main body part are integrally formed, the connecting part is used for being connected with an electric connector in an inserted mode, and the confluence piece is simple in structure, convenient to install and manufacture and low in manufacturing cost. The invention also discloses a bus assembly comprising the bus piece and a power supply rack comprising the bus assembly.

BRAKE

A brake, comprising: a driving motor (1), an inner gear (2) provided in linkage with the driving motor (1), an intermediate gear (3) provided in linkage with the inner gear (2), and a sector-shaped gear (4) provided in linkage with the intermediate gear (3). A rotation shaft of the driving motor (1), a rotation shaft of the inner gear (2), a rotation shaft of the intermediate gear (3), and a rotation shaft of the sector-shaped gear (4) are arranged in parallel; the sector-shaped gear (4) internally sleeves a sector-shaped gear output shaft (41); one end of the sector-shaped gear output shaft (41) is connected to a connection rod (5); and an output pin (6) is provided on the connection rod (5). By using a mode that the driving motor (1), the inner gear (2) in linkage with the driving motor (1), the intermediate gear (3) in linkage with the inner gear (2), and the sector-shaped gear (4) in linkage with the intermediate gear (3) are provided in parallel in an overlapping manner, the technical ...

SOLUTION-SPRAYING PREPARATION METHOD FOR SILK FIBROIN BIOLOGICAL TISSUE ENGINEERING STENT WITH OPTIMIZED MECHANICAL PROPERTIES

Provided is a solution-spraying preparation method for silk fibroin biological tissue engineering stent with optimized mechanical properties, the preparation method includes a post-processing step for fiber spinning, the specific process is: using an ethanol spraying device to perform spraying treatment to the fiber spinning, wherein the ethanol spraying speed in the ethanol spraying device is 100-1000 mL/min, preparing the bioprotein tissue engineering stent. Spraying treatment of silk fibroin spinning fiber can promote the random conformation of silk fibroin to β-sheet conformation, thus, a silk fibroin biological tissue engineering stent with uniform macroscopic texture is obtained; the prepared silk fibroin biological tissue engineering stent can be used for tissue engineering stent of blood vessels, urethra, cartilage, bone and the like, and can also be used for blood filtration after surface treatment.

WATER TREATMENT APPARATUS, AND PHOTOCATALYST-BASED TREATMENT MECHANISM AND TREATMENT METHOD THEREOF

A water treatment apparatus (10), and a photocatalyst-based treatment mechanism (300) and treatment method thereof. Water is introduced into a container (310) by means of a water inlet (311); a controller (321) controls an ultraviolet lamp (322) to be turned on to generate ultraviolet rays; a reaction gas is introduced into the container (310) by means of a gas inlet (331) of a gas inlet pipe (330); a photocatalytic material loaded on a carrier catalyzes the reaction gas to react with water molecules of the water in the container (310) so as to generate hydroxyl radicals having oxidization capacity; the free hydroxyl radicals can almost decompose all organic matters and partial inorganic matters harmful to a human body and the environment, have a strong sterilizing effect and an extremely strong killing effect on algae, and can decompose bromate generated by oxidation of bromides and bromate in water, so that the application range is wide and no carcinogenic byproduct of bromate is generated ...

NEW CRYSTALLINE FORMS OF PEMETREXED DIACID, AND PREPARATIONS THEREOF

Three new crystalline forms of pemetrexed diacid, preparation methods and uses thereof. These preparation processes are simple and have better practicality.

NOVEL TRIAZOLOPYRIMIDINE DERIVATIVE AND USE THEREOF

Provided are a novel triazolopyrimidine derivative represented by formula II, crystal form and preparation method thereof, and use thereof in the preparation of medicine for resisting coagulation and thrombus, treating or preventing cerebral ischemia diseases, or improving sleep.

VIDEO MANAGEMENT SYSTEM, MULTI-SCREEN DISPLAY CARD AND MONITORING ALL-IN-ONE MACHINE

A video management system, a multi-screen display card and a monitoring all-in-one machine (11). The video management system comprises: a monitoring all-in-one machine (11), wherein the monitoring all-in-one machine (11) comprises a multi-screen display card arranged on the monitoring all-in-one machine (11), the multi-screen display card is used to collect, process, manage and output a video image, and the video image is displayed on a multi-screen display wall (9) by means of a display chip (8); a network parallel connection module (12) is connected to a plurality of monitoring all-in-one machines (11) and used for centralized management of the multi-machine parallel connections of the monitoring all-in-one machines (11); and a management control end (10) is connected to the network parallel connection module (12) and used for outputting a control instruction to the network parallel connection module (12). The present invention solves the problem that current monitoring all-in-one machines ...

VEHICLE AND ANGULAR TRAVEL ELECTRIC CONTROL ACTUATOR

An angular travel electric control actuator, comprising a rotary shaft component, a shell (2), and an angle sensor (4). The angle sensor (4) comprises an information transmitting unit (41) and an information receiving unit (42); two ends of the rotary shaft component are supported on the shell (2) in a rotation mode; the information transmitting unit (41) is provided at a non-axial end of the rotary shaft component; the information receiving unit (42) is fixed on the shell (2) and close to the position where the information transmitting unit (41) is located; and the information transmitting unit (41) and the information receiving unit (42) are both located between two rotating support points of the shell (2). The rotation of the rotary shaft component of the actuator is stable, the structure design of the shell is not limited, the force bearing condition of the shell is optimized, and the radial force bearing strength of the rotary shaft component is improved.

MULTI-ENERGY STATIC SECURITY CT SYSTEM AND IMAGING METHOD

A multi-energy static security CT system comprises at least one N-stage image chain structure (5) and a baggage conveying belt (4) provided at an inner side at the bottom of the N-stage image chain structure (5). The N-stage image chain structure (5) and the baggage conveying belt (4) are fixed at a pre-configured positions by means of a machine frame (8). The N-stage image chain structures (5) are sequentially arranged in a forward direction of a baggage channel, and adjacent N-stage image chain structures (5) are offset relative to each other. By exposing radiation sources in the N-stage image chain structure (5) at different times, the static security CT system generates an image having a higher temporal resolution and more energy spectrum levels than an image generated by a spiral CT system, thereby improving the identification rate of prohibited goods and increasing baggage inspection speed. Also provided is an imaging method implemented by means of the static security CT system.

Foot margin device and method for adjusting attitude of atom interferometer

The invention provides a foot margin device and method for adjusting the attitude of an atom interferometer, and belongs to the technical field of adjustment of the rotation angle of the atom interferometer around the vertical axis, and the method is specifically characterized in that a fixed rotating bearing base is arranged above a first platform; an annular positioning groove is formed for limiting the second platform, and angular scale marks are arranged outside the annular positioning groove for positioning the second platform; the rotating bearing is embedded into the rotating bearing base of the first platform and is used for supporting the second platform to rotate around the vertical shaft of the second platform; a limiting groove is formed in the second platform and used for preventing the second platform from translating in the horizontal plane direction when the second platform rotates on the rotating bearing, so that the second platform rotates relative to a vertical shaft ...

Neural network activation method and device, NPU, equipment and storage medium

The invention discloses a neural network activation method and device, an NPU, equipment and a storage medium, and relates to the field of artificial intelligence. The method comprises the following steps: determining a target first-level interval to which an input value belongs from a first-level lookup table, wherein the first-level lookup table comprises a corresponding relationship between the first-level interval and an interval parameter; based on a target interval parameter of the target first-level interval, determining a target conversion parameter of a target second-level interval to which the input value belongs from a second-level lookup table, the second-level lookup table including a corresponding relationship between the second-level interval and the conversion parameter, and the conversion parameter being obtained by converting a fitting parameter of linear fitting of an activation function corresponding to the second-level interval; and determining an activation value based ...

NEW CRYSTALLINE FORMS OF AGOMELATINE AND PREPARATION METHODS THEREOF

Three new crystalline forms of Agomelatine, their preparation methods and the pharmaceutical compositions containing them and their preparation use of drug used for curing the diseases of central nervous system are provided. These three new crystalline forms of Agomelatine have the advantage of high stability and easy preparation and are suitable for the production of pharmaceutical preparation.

SINGLE-MODE OPTICAL FIBER AND MANUFACTURE METHOD THEREOF

A single-mode optical fiber and its manufacture method are provided. The optical fiber comprises a core layer, an inner cladding layer, a sunk cladding layer and an outer cladding layer made of pure SiO2 glass, wherein the core layer consists of quartz glass doped with germanium and fluorine, and exhibits a diameter (a) of 8.0-8.8 microns, Δ1 of 0.35~0.38% and ΔF of -0.09±0.02%; the inner cladding layer consists of quartz glass doped with germanium and fluorine, and exhibits a diameter (b) of 18-21 microns, Δ2 of 0±0.02%; the sunk cladding layer comprises fluorine doped quartz glass and has a diameter (c) of 26-36 microns, an outer interface with a Δ32 of -0.22 to -0.35% , an inner interface with a Δ31 of -0.20 to -0.35% and Δ32 ≤Δ31. Additional stress caused by bending during bending process of the optical fiber cannot be easily transmitted to core layer area to increase attenuation while bending resistance of optical fiber can be improved, thus mechanical property and service life of ...

Multiple exposure method for preparing semiconductor device

The invention provides a multiple exposure method for preparing a semiconductor device, which comprises the following steps of: forming a predetermined photoresist pattern on a semiconductor substrate on which a plurality of deposition layers are deposited in advance through a patterning process, and using the predetermined photoresist pattern as a first photoetching mask; depositing two insulating layers on the first photoetching mask step by step to sequentially form a first insulating layer and a second insulating layer; and finally forming a target pattern with relatively high integration density through continuous four times of etching processes. According to the invention, a traditional self-aligned quadruple patterning process (SAQP) is replaced by a self-aligned triple patterning process (SATP), so that the process is simplified, and the preparation cost is saved.

Flexible storage and transformation integrated system with dynamic reconstruction function

The invention discloses a flexible storage and transformation integrated system with a dynamic reconstruction function. The flexible storage and transformation integrated system comprises a controller, and a three-phase isolation transformer, three groups of storage and transformation integrated energy storage structures, three groups of single-phase control switch assemblies and a synchronous generator which are electrically connected with the controller, the controller comprises a battery detection module and a battery management module, and the battery management module is used for controlling on and off of the first electric control switch, the second electric control switch and the third electric control switch on each group of single-phase control switch assemblies and each sub-module according to battery voltage and battery current detected by the battery detection module. Therefore, the corresponding battery energy storage sub-module is selected to be communicated with the flexible ...

TITANIUM FILM APPLICATION AND SILICON-BASED OPTICAL WAVEGUIDE WITH THE SAME

Provided are an Titanium film application and a silicon-based optical waveguide with the same. The titanium film is used for reducing and even completely eliminating reflection of an electromagnetic wave of a near-infrared band. According to the invention, the titanium film that is used as an anti-reflecting film for the electromagnetic wave of a near-infrared band has properties of broad band of 1000nm to 2200nm, wide angle, and ultra-thin; and the preparation method of the film is simple and the preparation cost is low. Because of the ultra-thin property of the film, the weight of the anti-reflection device can be reduced and the cost of the anti-reflection device is saved; and the device can be carried conveniently. Besides, in order to realize anti-reflection effects for different dielectric substances, only the thickness of the titanium film needs to be adjusted, so that the film can be applied widely. In addition, because a titanium film covers the end surface of a silicon-based optical ...

METHOD FOR PREPARING MICROSTRUCTURE ARRAY SURFACE WITH SMOOTH INCLINED BOTTOM FACE ON BASIS OF AIR MOLDING METHOD

Disclosed is a method for preparing a microstructure array surface with a smooth inclined bottom face on the basis of an air molding method. The present invention relates to the technical field of the preparation of functional surfaces. The method comprises: firstly, preparing a surface having a micropore array; then preparing an auxiliary microstructure polymer template, and subjecting the auxiliary microstructure polymer template to a plasma treatment; uniformly spreading, on the auxiliary microstructure polymer template which has undergone plasma treatment, a layer of a liquid polymer film to be formed; placing small gap balls in empty positions of the micropore array surface; placing the auxiliary microstructure polymer template, on which the liquid polymer film has been spread, on the small gap balls on the micropore array surface, and sending same into a vacuum drying oven while maintaining this condition; and then heating and curing the polymer material, and separating the surface ...

Opening and closing control structure for inlet valve of centrifugal thrust augmentation fuel pump

The invention discloses a centrifugal boosting fuel pump inlet valve opening and closing control structure which comprises a fairing, a piston assembly is installed in a cup-shaped piece assembly, a cavity defined by the fairing and the cup-shaped piece assembly is divided into an adjusting cavity VI and a control cavity V. The adjusting cavity VI and the control cavity V can communicate with control oil II through oil ways correspondingly. The adjusting cavity VI can be communicated with inlet fuel oil I; and the electromagnetic valve controls the control cavity V and the system oil return III to be in a communication state or a disconnection state according to the control signal. The structure is adjustable in control margin, reliable in work and wider in application range, and the technical level of the structure reaches the domestic leading level. The control structure can be quickly popularized and applied to a new generation of aero-engines in China, and the military fighting capacity ...

Production method for improving bending performance of Al-Mg-Si extruded aluminum alloy

The invention discloses a production method for improving the bending performance of an Al-Mg-Si series extruded aluminum alloy. The Al-Mg-Si series extruded aluminum alloy is prepared from, by mass, 0.4%-1.3% of Mg, 0.4%-1.4% of Si, 0.15%-0.40% of Fe, 0.10%-0.25% of Cu, 0.05%-0.20% of Mn, smaller than 0.03% of Cr, smaller than 0.03% of V, smaller than 0.1% of Zn, smaller than 0.1% of Ti and the balance Al and inevitable impurities. When mMg + Si is smaller than or equal to 1.4%, the Mg/Si ratio is controlled to be 1.0-2.0; when mMg + Si is larger than 1.4%, the Mg/Si ratio is controlled to be 0.6-1.0, meanwhile, trace rare earth elements Ge and La are added, and the added trace rare earth elements Ge and La account for 0.10%-0.20% of the total amount of alloy element components respectively. The method has the advantages of being small in bending performance anisotropy, excellent in longitudinal bending performance, high in casting and extrusion production efficiency, low in production ...

Molecular marker and application thereof

The invention relates to the technical field of plant biology, in particular to a molecular marker and application thereof. The invention provides application of a molecular marker in predicting or identifying the content of linoleic acid in gramineous plants and/or improving the nutritional quality of the gramineous plants. The molecular marker is an LAQ4 site located at the 1771240th site of a No.6 chromosome of the gramineous plant; the gramineous plants comprise rice, and the rice comprises polished rice or brown rice. The method has the advantages of simplicity and convenience in operation, rapidness in typing, accurate result, low cost and the like, the character selection efficiency can be improved, and the requirements of large-scale molecular marker-assisted selection are met.

ALKYLALKOXY ESTER PRODRUG OF NUCLEOSIDE ANALOGUE AND USE THEREOF

Provided in the present invention are an alkylalkoxy ester prodrug of a nucleoside analogue as shown in formula IV and a preparation method thereof, and the use thereof in preparing drugs for preventing and/or treating viral infections, in particular, the hepatitis B virus (HBV) and/or the human immunodeficiency virus (HIV) infection.

Automatic feeding equipment for large-scale breeding of meat rabbits

The invention discloses automatic feeding equipment for large-scale breeding of meat rabbits, and relates to the technical field of automatic feeding, the automatic feeding equipment comprises a mounting guide seat, the mounting guide seat is in guide connection with a first movable connecting seat, and the first movable connecting seat is provided with a driving assembly matched with the mounting guide seat; the bottom of the first movable connecting base is connected with a storage barrel through a connecting block, and the bottom of the storage barrel communicates with a material distributing assembly. When the device is used, foodstuff is conveyed into the storage barrel under the action of the conveying assembly, and the process is matched with the U-shaped conveying pipe, so that the foodstuff falls into the storage barrel along two discharging ports of the U-shaped conveying pipe, the foodstuff is conveyed in a split-flow mode, rapid accumulation is avoided, foodstuff conveying is ...

Magnetic tunnel junction and preparation method thereof

The invention discloses a magnetic tunnel junction and a preparation method thereof. The magnetic tunnel junction comprises a bottom electrode; the magnetic tunnel junction main stacking layer is arranged on one side of the bottom electrode; the separation layer is arranged on one side, far away from the bottom electrode, of the magnetic tunnel junction main stacking layer; the etching barrier layer is arranged on one side, far away from the bottom electrode, of the separation layer; the top electrode is arranged on one side, far away from the bottom electrode, of the etching barrier layer; and the sacrificial hard mask layer is arranged on one side, far away from the bottom electrode, of the top electrode. According to the magnetic tunnel junction and the preparation method thereof, damage of Cl, H2O, O2 and the like to an MTJ device can be effectively avoided or greatly reduced.

Automatic inspection system of electric inspection robot

The invention belongs to the technical field of electric power inspection, and discloses an automatic inspection system of an electric power inspection robot. The background center is connected with the inspection robot terminal and is used for monitoring and recording inspection information and controlling the inspection robot terminal; and the track unit is used for providing an inspection route for the inspection robot terminal. A setting module for setting inspection time parameters, a signal sending module for sending an inspection instruction to an inspection robot and a marking module for marking key detection equipment are arranged in an inspection robot terminal, and an auditing module is used for rechecking abnormal detection data and transmitting rechecking data to the signal sending module. The equipment can be repeatedly detected, and the detection accuracy can be improved.

Method and device for improving dynamic range of detector in real time in trigger mode

The invention relates to a method and device for improving the dynamic range of a detector in real time in a trigger mode, and the method comprises the following steps: generating an initial pulse signal which is synchronous with a first external trigger signal, and controlling a flat panel detector to read out an image data stream once by using the initial pulse signal; generating a frame of image from the primary image data stream read by the flat panel detector under the control of the initial pulse signal; a plurality of preset pulse signals are generated in the interval time of two adjacent external trigger signals, and each pulse in the plurality of preset pulse signals is utilized to control the flat panel detector to read out an image data stream once; performing arithmetic average processing on a plurality of image data streams read by the flat panel detector under the control of a plurality of preset pulse signals to generate a frame of image; compared with the prior art, the ...

SCINTILLATOR SCREEN MANUFACTURING METHOD, SCINTILLATOR SCREEN AND CORRESPONDING IMAGE DETECTOR

Provided are a scintillator screen manufacturing method, a scintillator screen and an image detector. The manufacturing method comprises the following steps: making a crystal column scintillator layer (4) on the predetermined surface of a flexible substrate (1); making a moisture-proof layer on the periphery of the flexible substrate (1) on which the crystal column scintillator layer (4) is formed; making an X-ray absorption layer on the other surface of the moisture-proof layer except the surface for receiving X-rays; and making a protective layer (5) on the outer surface of the X-ray absorbing layer and on the surface of the moisture-proof layer for receiving X-rays.