815results about How to "Solution volume" patented technology

The invention discloses a preparation method of a ZrO2 nanotube supported B2O3 catalyst, which comprises the following steps of: preparing aqueous solution containing NH4F with the concentration of 0.5 to 1.0%, boride with the concentration of 0.1 to 6% and (NH4)2SO4 with the concentration of 5 to 12%, taking the aqueous solution as reaction medium, taking a zirconium plate as anode and a platinum plate as cathode with the spacing of 1.5cm therebetween, adopting 10-30V direct current for anode oxidation for 3 to 5 hours at room temperature, stopping reaction, drying and roasting the resultant oxide to obtain the catalyst, wherein all the concentration percents are mass percents. The B2O3/ZrO2 catalyst prepared according to the method of the invention has large specific surface area and volume simultaneously, and when the specific surface area thereof is the same as that of nano powder, the volume is ten thousand times as much as that of nano powder, thus the contradiction between specific surface area and volume of powder carrier is settled, and the defects caused by the fact that powder ZrO2 supports the B2O3 catalyst can be overcome.

An intelligent card supporting high performance calculation and large-capacity storage as well as high speed transmission is prepared for connecting power supply management unit with two base pins and connecting microcontroller unit to the other six base pins according to base pin code defined by ISO / IEC 7816-3 protocol, connecting expansion storage unit separately to power supply management unit and microcontroller unit.

The invention discloses an air and water hybrid cooling high-speed permanent-magnet motor and belongs to the technical field of motors. The large-power high-speed permanent-magnet motor comprises a casing, a cooling water jacket, a stator core, a stator radial air duct, a stator inner air duct, a motor rotor, an outer rotor axial fan, an outer rotor fan fixing frame and two sliding bearings. The stator core is divided into two sections, the radial air duct is reserved in the middle, and the inner air duct is reserved in a stator slot close to the air gap position. The cooling water jacket is arranged outside the stator casing, a spiral water way is arranged in the water jacket, and water flows into the water way from the middle of the water way and flows out from a left spiral water outlet and a right spiral water outlet which are arranged at two ends of the water way. The air and water hybrid cooling high-speed permanent-magnet motor can mechanically solve the problem that a permanent magnet is broken when bearing large pulling stress during high-speed rotating, further solves the problems that the large-power high-speed motor is large in loss density, difficult in heat dissipation and over high in temperature rising, and prevents the permanent magnet from having irreversible demagnetization easily at high temperature.

A method and a device for synchronously recording and reproducing slides and live presentation speech are provided. The method comprises the following steps: first, converting the format of electronic slides into a webpage display format, and storing the electronic slides in a server; then, remotely selecting and remotely playing the electronic slides, synchronously recording live presentation speech when playing the electronic slides through operation at a client, and storing the operation information in the server; and finally, uploading the live presentation speech to the server, packaging the live presentation speech, the operation information and the electronic slides, storing the PPT package in the server, parsing the operation information data, and synchronously playing the slide content and the speech. The device comprises a server, and a first client and a second client which are in communication connection with the server. According to the invention, the slides are remotely controlled, and slide speech is synchronously recorded in the remote control process, so that the problem that the traditional video recording process is complex and costs high, the problem that it is difficult to share a large video online, and the like are well solved.

The invention discloses an intelligent shoe and a positioning system based on the same, and belongs to the technical field of wearable equipment. The intelligent shoe comprises a shoe body, a Bluetooth chip arranged in the shoe body and used for realizing a positioning function, and a power supply battery for the Bluetooth chip; the Bluetooth chip comprises a processor, and a memory and a Bluetooth wireless communication module which are electrically connected with the processor; and the processor is used for controlling the Bluetooth wireless communication module to send a Bluetooth broadcast message to the outside, wherein the Bluetooth broadcast message includes an identifier of the Bluetooth chip. The Bluetooth chip is arranged in the shoe body of the intelligent shoe and realizes a positioning function. On the one hand, compared with a GPS (Global Positioning System) positioning module, the Bluetooth chip is smaller and is beneficial to improving the portability and the comfort of the intelligent shoe on the premise of realizing the positioning function; and on the other hand, compared with the GPS positioning module, the Bluetooth chip is lower in power consumption and electricity consumption.

The invention discloses a spring-ring type inserting hole and an inserting needle thereof, wherein a ring-shaped slot with a U-shaped cross section is arranged on the inner wall of an inserting-needle hole, a spiral spring ring is arranged in the ring-shaped slot, the inside diameter of the spiral spring ring is smaller than the aperture of the inserting-needle hole, the height of the spiral spring ring is consistent with the width of the ring-shaped slot, and a spiral spring forming the spiral spring ring is an oblique spring; and arc-shaped slots surrounding the outer circumferential surface of an inserting-needle head are arranged on the inserting-needle head which is adapted to the inserting hole, and the quantity and the positions of the arc-shaped slots are adapted to the ring-shaped slot in the inserting-needle hole. Through the spring-ring type inserting hole and the inserting needle of the spring-ring type inserting hole, the problem that a connector in the prior art difficultly meets the requirement of a large-current working condition is effectively solved, and the spring-ring type inserting hole and the inserting needle of the spring-ring type inserting hole disclosed by the invention have large contact areas, small sizes and simple structures, are connector parts with bran-new structures and have high practical value.

The invention discloses an onboard 3D imaging solid state laser radar system, and relates to the field of onboard laser radars. The system herein can address the technical problems of slow scanning, large size, low receiving signal to noise ratio and low safety factor of conventional mechanical scanning laser radars. The system herein includes a laser device, a plurality of TR assembles and a central processing unit. The laser device includes an optoisolator, a pre-amplifier, a beam splitter, a main amplifier array, and a beam expanding collimated light path. Each TR assembly includes a transmitting system and an echo receiving system. The transmitting system includes a unidirectional glass array and a liquid crystal polarized grating array. The echo receiving system includes an optical filter array, a gathering lens array photoelectric detector array and a plurality of playback circuits. According to the invention, a radar has no mechanical rotary parts, which can greatly reduce the size of a laser radar system; a single TR assembly has no processor, and all the TR assemblies are under uniform control of a central processing unit of the laser radar system, which facilitates integration; and the arrangement of the plurality of TR assemblies can cover a 360 degree horizontal field of view and a 20 degree vertical field of view.

A modular and integrated satellite dynamics simulation test system and method, the system is used for the ground simulation test of the small satellite attitude and orbit control system, the small satellite dynamics simulation test system is based on modular construction, including measurement and control upper computer and real-time lower computer . The measurement and control upper computer is a general-purpose computer, which runs the human-computer interaction software of the simulation system; the real-time lower computer includes the chassis, controller, digital signal acquisition and output card, analog signal acquisition and output card, RS‑422 communication card, CAN communication card, power supply Card, interface box, real-time lower computer except the chassis and interface box, all functional module boards are integrated based on the PXI bus, and the lower computer controller runs dynamics simulation calculation software. In addition to the interface box of the real-time lower computer, other modules are integrated inside the chassis. The upper computer and the lower computer are connected through Ethernet, and communicate based on the TCP/IP protocol, and carry out the interaction of operation instructions, collected data and simulation data. The present invention is applied to the simulation test of the attitude-orbit control system of the small satellite, which improves the integration and scalability of the small-satellite attitude-orbit control simulation test equipment, and the deployment of the equipment is simple and fast.

The invention discloses multi-time pressure maintaining transfer equipment for deep-sea sediments. The multi-time pressure maintaining transfer equipment comprises a pressure maintaining barrel and a sampling device and is further provided with a connector and a main ball valve, wherein the connector is internally provided with a sampling channel and a sample discharging channel which are communicated with each other; the pressure maintaining barrel is in butt joint with the sampling channel by the main ball valve; the sampling device comprises a sampling barrel located in the pressure maintaining barrel, a multi-grade retracting mechanism for driving the sampling barrel and a piston located in the sampling barrel, wherein the sampling barrel is provided with a sampling working position which extends out of the sampling channel via the main ball valve and a sample discharging working position located in the connector; the piston is used for pushing away a sample from the sampling barrel to enter the sample discharging channel when the sampling barrel is located at the sample discharging working position. The multi-time pressure maintaining transfer equipment adopts a brand-new sub-sampling scheme, namely the retracting mechanism is used for a plurality of times so as to realize sub-sampling and transferring of the sample in a pressure cavity; the defects in the prior art that the volume is large and the utilization rate of the sample is not high are overcome.

The invention discloses a fractal and composite right/left-handed transmission line-based miniature double-frequency microstrip rat-race coupler, which consists of four composite right/left-handed transmission line (CRLH TL) braches and four input/output ports, wherein the four CRLH TL branches are sequentially connected end to end, and have a Koch fractal structure respectively; the four input/output ports are connected between every two adjacent branches respectively, and are used for connecting small A type (SMA) joints; the four branches comprise three CRLH TL branches with completely identical circuit parameters and the CRLH TL branch with different circuit parameters, namely, the four branches comprise three transmission line branches which realize +90 degrees and -90 degrees on the frequency bands of fL and fH respectively and the transmission line branch which realizes -90 degrees and -270 degrees on the frequency bands of fL and fH respectively; and each of the four branches is formed by concatenating two CRLH TL units. The fractal and composite right/left-handed transmission line-based miniature double-frequency microstrip rat-race coupler is rationally designed, convenient to realize, good in using effects, highly accuracy and widely applicable, and can effectively solve the problems of complex method, poor using effects, large volume, incapability of really working in a double-frequency mode and the like of the conventional double-frequency rat-race coupler.

The invention relates to an LED lamp bulb which belongs to the technical field of LED semiconductor lighting. The LED lamp bulb comprises a lamp base, a lamp holder, a driver, a radiator, LED light source assemblies, a reflecting shade and a transparent shade, and is provided with a luminous zone composed of two or more independent small luminous zones, wherein each small luminous zone is composed of an independent radiating body on the radiator, one LED light source assembly, the reflecting shade and the transparent hood; the independent radiating body is a surface radiating body which extends out from the upper part of the radiator; the LED light source assembly is fixed on the radiator; the reflecting shade is fixed on the radiator; the transparent shade is fixed on the radiator and covers the upper part of the radiator and the LED light source assemblies installed on the radiator; the lower part of the radiator is a hollow radiating chamber; and the driver is installed on the lamp holder and in the radiating chamber of the radiator. The invention has the advantages of novel and unique structure, scientificity, reasonableness, convenient and fast assembly, low cost, good integral artistic quality, beautiful appearance, large radiating area, favorable radiating effect, long service life and the like.

The invention belongs to the technical field of vehicle-mounted electronic devices, and discloses a head up display device. The head up display comprises an imaging source, a first reflector, a second reflector and a first lens, wherein the first reflector and the second reflector successively reflect an image output by the imaging source; and the first lens is arranged on a reflection light path of the second reflector and used for correcting aberration. The imaging source can axially reciprocate along a central shaft of an output face of the image. The optical distance between the imaging source and the first lens is smaller than the focal distance of the first lens. According to the invention, aberration such as astigmatism and distortion can be effectively corrected via the first lens; the first reflector and the second reflector are combined to fold light paths, thereby achieving clear imaging. By adjusting the axial position of the imaging source, the image distance can be adjusted, so the head up display can be fit for different driving environments. In the transmission-type imaging way, aberration such as astigmatism and distortion can be effectively corrected; a quite big clear virtual image can be obtained even by a quite small imaging source; the head up display can be installed on a narrow center console; and the difficulty to take both the small size and big images into consideration is solved.

A rotatable wedge-shaped sunshade capable of being unfolded segmentally comprises a cylinder part sunshade wall (1), an oblique angle part sunshade wall (2), a base (3), cylinder part linear hinge components (4), oblique angle part linear hinge components (5), a fixed chassis (6), a rotary chassis (7) and a driving component. The cylinder part linear hinge components (4) serve as a support frame of the cylinder part sunshade wall (1); the oblique angle part linear hinge components (5) serve as a support frame of the oblique angle part sunshade wall (2), and the extension of the corresponding sunshade walls are driven by extension of the corresponding support frames. The two ends of the cylinder part linear hinge components (4) are connected with the base (3) and the fixed chassis (6) respectively, and the two ends of the oblique angle part linear hinge components (5) are connected with the rotary chassis (7) and the oblique angle part sunshade wall (2) respectively. The rotary chassis (7) is mounted on the fixed chassis (6) by the driving component, and driven by the driving component to rotate relative to the fixed chassis (6).

The invention relates to a method and system to realize the transformation of document format by virtual printing, and belongs to the document format transformation technology.In conformity to the descriptive principles of the printer language generated in the virtual printing process of the original document, the invention can combine the complicated background patterns, laces, wordarts and other complicated webpage element data into objects that can be described in less descriptive speech according to certain method and then the combined data of the printer language description can be transformed into target document format.By using the invention, the amount of descriptive language occupied by webpage graphics primitives are reduced in the target format document, and thus achieve the effect of faster target document production, smaller target document size and faster display of the target document in the corresponding reading viewers.The method and system adopted in the invention can produce document with the same visual effect of the original document in a fast and exact manner. It can also satisfy the requirement for possibly smaller size and faster speed of electronic document and hand-hold reading equipments.

The invention relates to a smarter-vision-based high-performance ore granularity visual inspection system. Detection steps are as follows: a high-speed and high-definition camera is installed above anore conveyor belt; an ordinary image and an image with structured light of broken ore on the ore conveyor belt can be taken by the camera; information of the ordinary image and the image with the structured light is transmitted to a system host for detection, ore particles are cut, ore granularity information is extracted for statistics and analysis, and the ore granularity information is outputted to a main controller of an ore crusher; the main controller adjusts various control parameters of the ore crusher according to the requirements of the production process, and the ore crusher operates according to new control parameters; after the ore crusher operates according to the new control parameters, the broken ore again appears in the image of the camera, and the closed-loop control ofthe ore crusher is realized. The smarter-vision-based high-performance ore granularity visual inspection system can effectively solve the problems that an ordinary camera can only collect two-dimensional image information, and an ore particle size analyzer cannot distinguish an damaged or water-stained empty conveyor belt from a conveyor belt scattered with the ore, so that the ore granularity information detection and analysis are inaccurate.

The invention discloses a semiconductor chip stacking structure. A plurality of first chips are stacked, the first chips are arrayed in a stepped stacking manner, a dielectric board is arranged on the first chip on the uppermost layer, a second chip is further arranged on the dielectric board, the first chips are upwards and electrically connected with the dielectric board firstly, and then the dielectric board is electrically connected to a bottom substrate. Therefore, the dielectric board can collect the signals of all chips and transmit the signals to the bottom substrate through less electrical connecting components (such as conducting wires), the number of connecting pads needed by the substrate is relatively reduced, so that the length and width of the substrate can be reduced, and further, the stacking density of the chips is increased, and the packaging size is reduced.

The invention belongs to the technical field of a lithium ion battery, and particularly relates to an electrolyte applicable to a silicon carbon negative and a lithium ion battery comprising the electrolyte. The electrolyte comprises an electrolyte lithium salt, a non-aqueous organic solvent and an additive. Wherein the additive comprises a negative film formation additive, a fluorine-substitutedphenyl isocyanate compound additive with a formula I structure and a dosilane nitrogen-based compound additive. Compared with the prior art, the actual discharging capability, the cycle stability andthe high-temperature storage performance of a silicon carbon negative electrode lithium ion battery are effectively improved by means of a synergic effect generated by combined application of variousadditives, gas generation is prevented, the problems of volume expansion and pole plate pulverization of the battery during the charge-discharge process are solved very well, and meanwhile, the electrolyte is compatible with relatively good high- and low-temperature performance.

The invention discloses a graphite/silicon@carbon core-shell structure composite spherical cathode material and a preparation method thereof. By means of the material, the volume expansion effect of silicon in the lithium de-intercalation process can be inhibited, and a high-capacity lithium iron battery silicon/carbon composite cathode material is obtained. By means of the technical scheme, a spherical graphite/silicon framework precursor serves as the core of the composite cathode material, and an amorphous pyrolytic carbon or graphite-like carbon material wrapping layer serves as the shell; nanometer or micrometer silicon is embedded in flake graphite cracks to form a graphite framework, the volume expansion effect of silicon in the lithium de-intercalation process is inhibited through the mechanical characteristics of the graphite framework, then a spherical framework is formed by mixing and granulating 3-20 wt% of nanometer or micrometer silicon, 50-80 wt% of flake graphite and 10-40 wt% of amorphous pyrolytic carbon or graphite-like carbon, and an amorphous pyrolytic carbon or graphite-like carbon spherical composite conductive carbon net structure wrapping a graphite/silicon surface is formed.

The invention brings forward a power transmission line online monitoring circuit and an intelligent insulator suspension ring. The online monitoring circuit is integrated with a flashover monitoring function, a micro meteorology monitoring function, a leakage current monitoring function and a power transmission line icing monitoring function. At the same time, the monitoring circuit is combined with an insulator suspension ring. Through embedding a strain sensor, a leakage current sensor, a flashover sensor, a leakage current theft power supply module, a Beidou/GPS positioning module, a wireless signal transmission module and the like into the suspension ring, the insulator suspension ring becomes the intelligent insulator suspension ring with an online monitoring function, the intelligent suspension ring has a lead weight online monitoring function, an integrated leakage current online monitoring function, a flashover counting function and a positioning function, and the effectiveness and real-time performance of power transmission line sate monitoring are substantially improved.

The invention discloses a lithium battery silicon-carbon nanotube composite cathode material as well as a preparation method and application of the lithium battery silicon-carbon nanotube composite cathode material. The preparation method of the lithium battery silicon-carbon nanotube composite cathode material comprises the following steps of: mixing and uniformly stirring an organic carbon source and nanometer silicon based on the mass ratio of (0.4-9): 1, adding a catalyst to obtain mixed slurry, drying by a closed circulation spray dryer to obtain a precursor, insulating the precursor for 1-5 hours at the temperature of 300-700 DEG C to obtain a sample, feeding the sample in a tube furnace, increasing the temperature to 500-900 DEG C under the mixed gas of gaseous organic carbon source and N2 and Ar2, and naturally cooling to obtain the lithium battery silicon-carbon nanotube composite cathode material. The lithium battery silicon-carbon nanotube composite cathode material has excellent electrochemical properties, high first charge-discharge efficiency up to more than 2000mAh/g, reversible specific capacity of about 1100mAh/g after cycle of 50 weeks, and good specific capacity and cycle performance, and the problems of low first efficiency, large irreversible capacity loss and poor conductivity of silicon when being used to prepare a lithium ion battery cathode are successfully solved.

The invention discloses a full-automatic rice cooking device. The full-automatic rice cooking device comprises a frame, an electric cooker, a rice storage bin, a rice taking device, a rice washing device, a water conveying system, a transmission system and a controller, wherein the rice storage bin is disposed in the upper machine position of the frame, the rice taking device and the rice washing device are disposed in the middle machine position of the frame, the transmission system is disposed in the lower machine position of the frame, the electric cooker accesses the lower machine position through the transmission system, the rice washing device comprises a second drive machine, a rocker, a hollow-shaft motor and a stirring rod, the water conveying system comprises a water conveying pipeline, the stirring rod and the second end of the water conveying pipeline extends into the electric cooker, the active end of the rocker is driven by the second drive machine to drive the hollow-shaft motor to swing , and the hollow-shaft motor leaves the electric cooker. The full-automatic rice cooking device has the advantages that automatic rice taking, rice washing, water adding and rice cooking can be achieved, artificial interference is not needed in the whole process, rice can be directly washed in the electric cooker, and the full-automatic rice cooking device is compact in overall structure and convenient to operate.

The related new intelligent mobile phone with high-performance computation, grand-scale memory, and high-speed transmission comprises: a baseband processor chip, a RF module, a SDRAM, a LCD, a keyboard, and some DAC and ADC circuits, wherein a built-in 8-pin intelligent card socket accords with ISO/IEC 7816 standard and connects with C4, C6, C8 pins of socket as well as the baseband processor chip pin; a power management chip provides 3.3-5V voltage for all modules in phone, as well as the SIM card through intelligent card socket C1 pin. This invention supports GSM communication, has massive data storage and high-speed data communication, and supports new application in intelligent card.

The invention discloses a multiple-wave beam antenna which comprises a micro-strip Rotman lens, a micro-strip antenna array and a shielding layer, wherein the shielding layer is positioned between the micro-strip Rotman lens and the micro-strip antenna array, provided with a plurality of openings and used for conducting an electromagnetic wave between the micro-strip Rotman lens and the micro-strip antenna array by the shielding layer. The invention solves the problems of larger size and more complicated design of the multiple-wave beam antenna, thereby achieving the effects of compact structure and simple design.

The invention discloses a color regulating plate for a solid light source projector, wherein a fixing hole is arranged on the center of the color regulating plate; the plate is divided a blue light area, a green light area and a red light area along the circumferential direction; the blue light area is provided with a light filter capable of penetrating blue and red lights but reflecting green light, a green fluorescent powder layer, a substrate and a light filter capable of penetrating green light but reflecting blue and red lights, from an incidence side to an emergent side; the red light area is provided with the light filter capable of penetrating blue and green lights but reflecting red light, a red fluorescent powder layer, the substrate and the light filter capable of penetrating red light but reflecting blue and green lights, from incidence side to emergent side; and the blue light area comprises the substrate. The chromaticity of three basic color lights of the color regulating plate is matched by adjusting the opening circumferential angles in the blue light area, the green light area and the red light area after a solid light source and the red and green fluorescent powder layers are confirmed. The color regulating plate can generate blue, green and red three basic color lights. When the color regulating plate is used, the color regulating plate rotates at a fixed speed, the color picture having no flicker and no tail of moving objects can be observed, and the color regulating plate has the advantages of high light efficiency, low power consumption, long service life, safety, light and handy property, and the like.

The invention provides a distributed communication-in-motion light shaped antenna which is composed of a plurality of distributed front ends (9), a distributed optical fiber signal network (6), a distributed low-frequency signal network (7) and a distributed grating sensor network (8). Each of the distributed front ends comprises a distributed antenna sub-array (1), an electro-optical/photoelectric conversion chip (3), a sub-array wave beam control system (4) and a grating sensor (5), which are electrically connected around a silicon-based integrated transceiver chip (2). Under command control of a centralized processing terminal (10), each distributed front end (9) can implement beam scanning and satellite signal alignment; and then the plurality of distributed front ends (9) implement beam forming and real-time satellite communication under command control of the centralized processing terminal (10). The technical problem that the existing communication-in-motion antenna is designed in an integrated mode in an aperture, is large in size and heavy, and is hard to match a flexible wing structure in stiffness is solved.

The invention discloses a multifunctional portable experiment device, which mainly solves the problem that laboratory equipment cannot be widely applied as the laboratory equipment is precious and has a large size. The multifunctional portable experiment device comprises a signal generation module, a signal collection module, a universal meter module, a power supply module, a microprocessor control circuit and a communication drive circuit, wherein the microprocessor control circuit is connected with the signal generation module for generating two output analog signals; the microprocessor control circuit is connected with the signal collection module for collecting two input analog signals; the microprocessor control circuit is connected with the universal meter module for storing and processing data collected by the universal meter; the communication drive circuit is connected with the microprocessor control circuit for uploading processed data which are stored in the microprocessor control circuit to an upper computer and carrying out bidirectional communication; and the power supply module is connected with other modules for outputting direct-current stabilized voltage. According to the multifunctional portable experiment device disclosed by the invention, basic functions of instruments such as a signal source, an oscilloscope, a direct-current stabilized power supply and a universal meter can be realized.