136results about How to "Structure has no effect" patented technology

The invention relates to a secondary lithium ion battery positive active material with the surface coated with Li2O-2B2O3 as well as a preparation method thereof designed for solving the technical problem of electrochemical stability of the existing secondary lithium ion battery under high temperature. The positive active material has the design points: the transition metal lithium oxide particle positive active substance with the surface coated with Li2O-2B2O3, a conductive agent and a binder are present in weight percentages of: 96 to 10 percent, 2 to 5 percent, and 2 to 5 percent respectively. The preparation method comprises: LiOH-H2O, H3BO3 and transition metal oxides are under ball-mill mixing in a certain proportion, wherein, LiOH-H2O and H3BO3 are present in a molar ratio of 1: 2-1: 1, and the secondary calcination method is adopted to obtain a transition metal lithium oxide particle with the surface coated with Li2O-2B2O3. The surface physical and chemical characters of the positive active material are changed, and the preparation method is feasible and is applied to the development and application of similar products.

The invention relates to a method for separating and extracting protein in a biological product technology, in particular to a preparation method of human serum albumin. The preparation method comprises the following steps of: separating components I, II and III, separating a component IV, separating a component V, and refining and purifying; and performing ultrafiltration, pasteurization and sterilized filling, examining a finished product, and packaging the qualified product by pasting a label, boxing and the like. According to the preparation method disclosed by the invention, a relatively-moderate pressure-filtration separation method is adopted, so that the molecular structure of the protein is not influenced, and the human serum albumin with high quality is ensured to be prepared; moreover, the product yield is greatly increased, the human serum albumin which is low in aluminum ion content or even does not contain aluminum ions can be provided for clinical application, and the quality of the human serum albumin is improved.

The invention discloses a reflective optical fiber sensor device, which comprises a light source, an optical detector and a sensor probe, wherein the sensor probe is used for receiving and processing the incident light emitted by the light source and sending the obtained reflected light to the optical detector. The reflective optical fiber sensor device can overcome the defects that the sensor in the prior art has large volume, cannot be used in an environment with electromagnetic interference and has short service life and poor corrosion resistance, and has the advantages of small volume, wide application range, long service life and good corrosion resistance.

The invention relates to a vibration knocking device and a mining dump vehicle. The vibration knocking device comprises a base, a vibration rod, a support, an impact ball A and an impact ball B, wherein the support is arranged on the base, and the impact ball A and the impact ball B are installed at the two ends of the vibration rod. The impact ball A and the impact ball B are each made of metal. The vibration rod is installed on the support and can freely swing around the support. An electromagnet A is arranged below the impact ball A. An electromagnet B is arranged below the impact ball B. By means of the interrupted power supply between the electromagnet A and the electromagnet B, the impact balls can swing in a reciprocating manner. The mining dump vehicle comprises a platform floor. The vibration knocking device is installed on the platform floor. By means of the vibration knocking device and the mining dump vehicle, residual materials adhering to the platform floor can be removed in the one-time discharge process, the vibration knocking device can adapt to different materials by regulating the vibration knocking frequency, the structure is simple, and installation is convenient.

The invention discloses a method for assisting brazing by a carbon nanotube reinforced type three-dimensional middle layer, and relates to a method for brazing ceramic and metal, which aims at solving the problems of larger residual stress and insufficient high-temperature property in the existing ceramic and metal brazing connection process. The method comprises the following steps of 1, preparing soaked foam metal; 2, putting the soaked foam metal into a plasma reinforced type chemical vapor depositing vacuum device, and increasing temperature at certain pressure and hydrogen atmosphere; 3, preparing nanotube reinforced type foam metal; 4, preparing surface impurity-removed metal, surface impurity-removed brazing material foil and surface impurity-removed ceramic; 5, sequentially overlapping the surface impurity-removed to-be-brazed metal, the carbon nanotube reinforced type foam metal, the surface impurity-removed brazing material foil and the surface impurity-removed ceramic, so as to obtain a to-be-brazed part; brazing the to-be-brazed part, and cooling to room temperature. The method disclosed by the invention is used for assisting the brazing by the carbon nanotube reinforced type three-dimensional middle layer.

An inclination sensing type storage tank liquid level intelligent detection method is achieved through an inclination sensing type liquid level meter, an inclination sensor module, a temperature compensation module, an MCU processor module, a collection processing module and a data remote transmission module. A mechanical floating ball pointer is used as a working mechanism of the liquid level meter, an inclination sensing type liquid level meter pointer is used for measuring rotating angles, the processor module collects and processes each electrical signal converted from a pointer inclination, the liquid level and the volume of a storage tank are worked out according to corresponding relation of each angle and one liquid level and through correction of data by a temperature collecting module, and liquid level and volume data are output in a remote transmission mode through electrical signals and digital signals. For a remote storage tank without power supply, the inclination sensing type liquid level meter is provided with a solar panel and a storage battery power supply module, wireless networks such as CDMA or 3G or GPRS are used for remote transmission of data.

The invention provides a dustproof mesh enclosure for a radiator. A dustproof mesh capable of being unfolded for shielding or being folded to stack is arranged in front of the air inlet of the radiator, and a pulley and a reversing wheel are arranged through a fixing plate; a motor control box drives a winch deploying and retracting steel wire rope to control the dustproof mesh to unfold upwards or fold downwards along a U-shaped guide groove; the dustproof mesh stops dust, grass clippings, poplar catkins, insects and other debris, thereby reducing the adsorption and accumulation of the debris through radiator fins of a transformer to make a heat sink network be unimpeded and improve the heat dissipation effect of the radiator; the dustproof mesh enclosure of the radiator can be folded and unfolded, so that disassembly and assembly and cleaning maintenance can be easily conducted; the dustproof mesh of the radiator adopts an assembling structure, and the installation is convenient and simple; the installation mode of the dustproof mesh enclosure of the radiator adopts a special C-shaped clamp which is fixedly connected with the radiator, and the original radiator structure is not changed, so that the process of installation needs no punching or welding, and has no influence on the original component structure of the radiator.

The invention discloses a regulating stem type anti-falling device for human body to climb up and down an electric pole, which is provided with a wiring sleeve. The anti-falling device comprises a regulating stem, a self-locking hook, a safety rope, the wiring sleeve and a connector, wherein the upper end of the regulating stem is fixed with the connector; the lower end of the connector is provided with a connecting hole or a U-shaped ring and the upper end of the connector is provided with a U-shaped ring or a connecting hole; two arms of the U-shaped ring are provided with bolt fastening holes; bolts are detachably locked into the bolt fastening holes; the safety rope is fixed on the lower end of the connector; the wiring sleeve is fixed on the upper end of the connector; the self-locking hook is locked on the safety rope; and a fixed ring of the self-locking hook is connected with a short safety rope the other end of which is connected with a front hanging point of a whole-body safety belt. The regulating stem type anti-falling device is carried and used by workers without any device in advance on the electric pole, has no influence on the structure of an electric pole body, has the characteristics of convenient storage, maintenance and carrying, easy use, simple maintenance, low cost and high safety, can be put into application in large scale, has low investment and quickly obtained benefit, and improves the work efficiency.

The invention discloses a lithium supplementing current collector which comprises a metal foil and a lithium supplementing layer loaded on the metal foil. The lithium supplementing layer comprises conductive carbon, a lithium-containing additive, a first polymer and/or a derivative thereof, and a second polymer and/or a derivative thereof. The first polymer is selected from any one or more of polyacrylic acid, polymethyl methacrylate, polyvinyl alcohol, polystyrene, polyvinylidene fluoride, carboxymethyl cellulose, epoxy resin and phenolic resin, and the second polymer is polytetrafluoroethylene. The invention also discloses a preparation method of the lithium supplementing current collector, and the method comprises the following steps of placing lithium-supplementing slurry between the preheated rollers of a roller press for rolling to obtain a self-supporting lithium-supplementing coating, the preheating temperature of the rollers being 50-150 DEG C; placing the self-supporting lithium-supplementing coating on the metal foil, and carrying out hot-pressing compounding between the preheated rollers. The invention also discloses a negative plate. The invention also discloses a lithium battery.

The invention relates to a piezoelectric energy collection device and an application and method on a floating slab track. The piezoelectric energy collection device comprises an upper cover plate anda lower cover plate, a central block is arranged at the central position between the upper cover plate and the lower cover plate, a plurality of groups of piezoelectric ceramic stacks which are distributed in central symmetry by taking the central block as a center and are distributed along the radial direction are arranged between the upper cover plate and the lower cover plate, one ends of the piezoelectric ceramic stacks are supported on the central block, the other ends are supported on a pushing and pressing device for converting vertical pressure of the upper cover plate and the lower cover plate into radial horizontal thrust, and the floating slab track comprises the piezoelectric energy collecting device arranged in a steel spring vibration isolator. The invention comprises the piezoelectric energy collecting device which is high in bearing capacity, high in output power and low in vertical size. In addition, the piezoelectric energy collecting device is applied to the floatingslab track to form a floating slab track which can provide stable energy and has a safety protection function. The invention further provides a design method of the piezoelectric energy collecting device.

The invention relates to an Ethernet MAC module realization device and an Ethernet MAC module realization method used for IEEE 1588v2 protocol. The Ethernet MAC module realization device comprises aMAC receiving module and a MAC transmitting module. The MAC receiving module is used for receiving of all Ethernet messages, and is realized on an FPGA or an ASIC. The MAC transmitting module is for the transmitting of all Ethernet messages, and is also used to return the transmitting time stamps of the Ethernet messages to a PTP protocol stack. The MAC transmitting module is formed by a softwareprogram and a hardware logic. The software program of the MAC transmitting module is installed on a CPU or DSP platform, and is used for PTP time stamp related auxiliary computation and MAC part control function. The hardware logic of the MAC transmitting module can be realized on the FPGA or the ASIC, and is used for PTP time stamp processing, time stamp related part real-time computation, and MAC layer protocol realization. Exchange between the MAC receiving module and the PTP protocol stack, the exchange between the MAC transmitting module and the PTP protocol stack, and the exchange between the software program and the hardware logic of the MAC transmitting module are reduced, and the mutual exchange is required to wait.

The invention discloses an adsorbing material with water-induced shape memory function, and a preparation method and an application thereof. The adsorbing material is prepared by performing physical cross-linking gelation in an aqueous solution system with a tape casting method, wherein a porous aqueous solution system is prepared from the following components in parts by weight: 10-20 parts of functional polymer material containing amino functional group, 10-20 parts of water-soluble high-molecular polymer containing polyhydroxy/carboxyl/amino, 0.5-10 parts of microorganism and 0.01-10 parts of a nutrient solution. The preparation method is simple in operation and low in cost; the raw materials are easily acquired; the prepared material has an excellent adsorbing property and can realize non-irritant quick response in deionized water at normal temperature; the material is endowed with excellent mechanical property and shape memory function; the performance shows certain recycling possibility.

The invention discloses a plugging injection mix for air leakage of a furnace bottom foundation of a hot-blast stove. The injecting mix comprises the following components by mass percentage: 40-50% ofa special grade high alumina bauxite granular material; 25-35% of special grade high alumina bauxite powder; 2-4% of active alpha-alumina micro powder; 2-4% of active silica micro powder; 0.05-0.5% of a dispersant; 19-25% of furan resin; and 1-3% of a curing agent. The injecting mix has the characteristics of easy mechanized construction, good fluidity, short construction time, strong bonding performance, curing at room temperature, high strength after curing, good volume stability and the like, can effectively improve the problems such as shrinkage cracking, great brittleness and the like existing in the existing online repair method, and has important industrialization and promotion values.

The invention relates to a vision-based trackless electric door running control method, device and system. The method comprises the steps of S1, acquiring a current image, collected by an image acquisition device, of an electric door in the moving direction; S2, extracting current features of the current image through a preset method, comparing the extracted current features of the current image with prestored features to judge whether the current features are matched with the prestored features or not, if yes, executing the step S4, and if not, executing the step S3; S3, outputting a controlsinal to control the electric door to stop; S4, conducting analytical processing on the current image and acquiring skewing information of a machine head of the electric door through combination withmotion information of the machine head of the electric door; and S5, controlling the electric door to operate according to the skewing information to the machine head. Through the method, traditionalmagnetic nails or guide rails can be effectively omitted; an obstacle can be accurately avoided without an additional infrared sensor, navigation of the electric door can be more accurately realized,and the electric door is effectively prevented from skewing.

The invention discloses a two-way automatic centering fixture, and relates to the field of mechanical machining, in particular to the two-way automatic centering fixture. The two-way automatic centering fixture comprises two clamping vice jaws arranged on a workbench and is characterized in that one far end of the two clamping vice jaws is connected with a clamping wheel of a machine tool, and the other far end of the two clamping vice jaws is connected with the wall of the machine tool through a tension spring; two deflector rods are arranged at the two clamping vice jaws correspondingly, one end of each deflector rod is connected with the corresponding clamping vice jaw through a pin shaft, and the other end of each deflector rod is connected with a corresponding gear; the deflector rods can drive the gears to rotate, and the two gears are engaged with each other. According to the two-way automatic centering fixture, the structure is simple, the requirement for machining precision of the fixture is not high, and action is flexible and reliable; an existing power source of the machine tool is utilized, the main structure of the machine tool is not influenced, the manufacturing period is shortened, and the cost is low.

The invention relates to a low-temperature dyeing method for high-performance fabric, and belongs to the technical field of textile printing and dyeing. According to the method, silicic acid gel generated by hydrolyzing sodium silicate is adopted in the dyeing process of the high-performance fabric. N,N-dimethylacetamide is enriched in the silicic acid gel which is adsorbed on the fiber surface ofthe fabric. At 50-70 DEG C, N,N-dimethylacetamide opens part of hydrogen bonds between macromolecules on the surface of the high-performance fiber, and surface roughness and porosity of the fiber areincreased; then under the action of sodium hydroxide, the silicic acid gel adsorbed on the surface of the high-performance fabric is dissolved, and N,N-dimethylacetamide is released. Under the condition of low temperature dyeing at 70-90 DEG C, N,N-dimethylacetamide has strong polarity, and can effectively increase dissolution concentration of dye and reduce micelle concentration. Dye molecules are easily adsorbed and dye the high-performance fabric, and dyeing efficiency of the high-performance fabric is effectively improved. Besides, better dyeing effect can be achieved with the method at relatively low dyeing temperature, and thus, production cost and energy consumption are reduced.

The invention discloses a plug and play integrated modular active harmonic isolator. The plug and play integrated modular active harmonic isolator comprises a current detection module, an inversion control module and a special transformer; the current detection module is used for detecting a fundamental current in the grid-entering current, and a feedback current which is generated by applying a voltage to the secondary side of the special transformer through an inverter; the special transformer comprises a primary side winding and a secondary side winding, wherein the primary side winding is used as a busbar to be connected to the power grid; the secondary side winding is wound in the axial direction, and is connected with the output end of the inversion control module; the input end of the inversion control module is connected with the direct current side voltage; the control end of the inversion control module is connected to the output end of the current detection module; and the inversion control module is used for outputting a control voltage for controlling the secondary side of the transformer to generate the feedback current according to a reference current signal. By adoption of the closed current transformer or open transformer access mode, simple access and no influence to the structure of the power grid are realized.