297results about How to "No risk" patented technology

A basket calculation engine is deployed to receive a stream of data and accelerate the computation of basket values based on that data. In a preferred embodiment, the basket calculation engine is used to process financial market data to compute the net asset values (NAVs) of financial instrument baskets. The basket calculation engine can be deployed on a coprocessor and can also be realized via a pipeline, the pipeline preferably comprising a basket association lookup module and a basket value updating module. The coprocessor is preferably a reconfigurable logic device such as a field programmable gate array (FPGA).

A handpiece and method of use for laser-assisted liposuction for melting, disrupting, and removing cellulite and adipose tissue. Electromagnetic energy is used to selectively melt or disrupt cellulite and adipose tissue and ablate the collagen in the constricting bands of connective tissue that causes the dimpled appearance of cellulite and adipose tissue, while avoiding damage to the surrounding fatty cells.

The invention provides a nanometer bionic wound-surface cover and a preparation method thereof. The nanometer bionic wound-surface cover comprises a nanometer bionic bracket and hydrosol attached to the bracket, wherein the hydrosol covers one or a plurality of cytokines. The preparation method for the nanometer bionic wound-surface cover provided by the invention comprises the steps of preparingan electrostatic-spinning solution, a cytokine-containing hydrosol solution and a crosslinker solution, preparing the nanometer bionic bracket by use of electrostatic spinning, using an ink-jet printer to print the cytokine-containing hydrosol solution onto the nanometer bionic bracket, and the like, wherein electrostatic spinning and printing can be repeated so as to form the wound-surface covers different in thickness. The preparation method adopts an in-situ autologous stem-cell engineering technique and adopts stem-cell chemotactic factors to attract autologous stem cells to directionally migrate, enter a wound surface and be differentiated according to designed requirements, thereby avoiding inconvenience caused by using viable cells, achieving rehabilitation effects the same with orbetter than that of using the viable cells and having broad application prospects.

The invention provides a tissue engineering nerve graft based on a biological printing technology and a preparation method thereof. The tissue engineering nerve graft comprises an outer tube and a tube inside scaffolds, wherein trophic factors and/or cells can cover the inner surface and the outer surface. A high-fidelity printing operation is performed according to the actual nerve shape demand by utilizing the biological printing technology, a polymer solution is printed into the specified nerve graft in a three-dimensional way by using an ink-jet printer by adjusting the sizes and the quantity of the jet nozzles of the ink-jet printer, the distances from the jet nozzles to a bottom layer and the pulse frequency of a supercharger and writing a control program of specific printing, and the specified nerve graft is applied to treatment of peripheral nerve defect and spinal cord injury.

The invention discloses an automobile warm air control method and an automobile warm air control device. The method includes steps: using a control circuit to load weak-current voltage; using a PTC (positive temperature coefficient) heater to load strong-current voltage; using the control circuit to detect temperature of the PTC heater and comparing the temperature of the PTC heater with a target temperature value; and using the control circuit to detect the voltage and the current of a strong-current circuit of the PTC heater through a photocoupling strong-weak current isolation circuit. The automobile warm air control method and the automobile warm air control device are characterized in that a driving circuit receives duty cycle pulse width modulation signals outputted by the control circuit by the aid of an IGBT (insulated gate bipolar transistor) to lead a collector and an emitter to be on or off; and a strong-current power source is applied to the PTC heater through the IGBT. Strong-current voltage of different frequencies is outputted under pulse width modulation control and duty cycle change to realize linear control of the PTC heater. The automobile warm air control method and the automobile warm air control device have the advantages that overhigh surface temperature of the PTC heater can be effectively avoided so that reliability is high and risks and potential hazards are avoided; electrodeless power adjustment and smooth temperature control are realized, and overheating and overcooling are avoided; and cost is low.

The invention relates to a ceramic filter suitable for filtering metal fused mass, comprising refractory material, carbonaceous material and silica adhesive. The invention also relates to making method for the filter. The ceramic filter has the advantages of more economical making, high mechanical strength not shrinkage during sintering process, more stable performance in memory process and more safe usage.

The invention belongs to the field of polyurethane adhesives, relates to coating adhesive for woodworking industry, in particular to a double-component polyurethane adhesive and a preparation method thereof. The double-component polyurethane adhesive is obtained by compounding a component A and a polyurethane component B containing an isocyanate-terminated group, wherein the component A is polyurethane synthesized by polyester polyol and diphenylmethane diisocyanate (MDI) as well as accessory ingredients; the polyurethane component B containing the isocyanate-terminated group is synthesized by polyester polyol and/or polyether polyol, isocyanate, epoxy resin and accessory ingredients. The double-component polyurethane adhesive disclosed by the invention is good in adhesion performance, high in early-stage bonding strength and final bonding strength, and good in heat resistance, does not bounce at 80 DEG C, and is colorless, low in smell and low in cost.

The invention discloses a preparation method of a water-blush-resistant fluoride and siloxane modified waterborne pressure-sensitive adhesive for a polyethylene protective film, and the method is used for synthesizing a cross-linking type water-blush-resistant fluoride and siloxane modified waterborne pressure sensitive adhesive with less emulsifier dosage and excellent performance by introducing an organic siloxane monomer and a fluoride-containing vinyl monomer to perform copolymerization modification in a polymerizing process, compounding by utilizing an emulsifier, and adopting a seed emulsion polymerization method. The invention also provides a preparation method of the polyethylene protective film, and the prepared protective film is excellent in water blush resistance, and guarantees that the surface of a protected material does not have residual adhesive of the torn film and is not polluted after the protective film is used outdoors for a long time according to the requirement.

The invention discloses performance test equipment for an ABS solenoid valve. An ABS solenoid valve performance test mechanism and a marking mechanism are integrated in the all-in-one equipment, so that the plugging and sealing test on the solenoid valve can be automatically realized. Therefore, the working efficiency is high and the manpower is saved. The ABS solenoid valve test equipment is integrated with the marking equipment at one piece. In this way, the missed detecting condition or the missed marking condition of parts is avoided.

The invention provides an MEMS aluminum and germanium bonding structure and a manufacturing method thereof. The structure comprises a device silicon chip and a sealing cap silicon chip, wherein the device silicon chip is provided with a micro mechanical structure area and an aluminum bonding layer; the sealing cap silicon chip is provided with a germanium bonding layer, and the germanium bonding layer is in bonding with the aluminum bonding layer. The sealing cap silicon chip is further provided with a pitch column extending out of the sealing cap silicon chip, and the end of the pitch column is in contact with the device silicon chip. The MEMS aluminum and germanium bonding structure can control aluminum and germanium horizontal extension quantity caused by bonding pressure in the bonding process, and an aluminum and germanium bonding layer with a preset thickness is obtained.

The invention relates to the technical field of time synchronization and discloses a time-giving system composed of dedicated fiber time-giving devices and a dedicated optical route and a method for implementing same. The time-giving system comprises a clock source and dedicated fiber time-giving devices arranged at various time-giving nodes and specially used for time frequency synchronization. Each dedicated fiber time-giving device for time frequency synchronization transmits a time frequency signal via the dedicated optical route, is provided with a time interface and a frequency interface, is connected with an external optical communication device (or other device) through the time interface and the frequency interface, and provides a time signal and a frequency signal for the external optical communication device (or other device). According to the invention, each dedicated fiber time-giving device transmits the time frequency signal via the dedicated optical route so as to prevent interferences of service signals on the time frequency signal and achieve fast transmission speed and high time synchronization frequency precision.

The invention relates to a rapid plugging device of a dewatering well with a deep foundation, which comprises a plugging sleeve, a plugging cover base, a plugging cover, an external water stopping ring, an inner water stopping ring and a water stopping plate, wherein the plugging cover base is a ring base connected and vertically fixed with the lower part of the inner wall of the plugging sleeve, more than three bolts are welded on the circumference in equal parts of plugging cover base, the plugging cover is provided with bolt holes relative to the bolts of the plugging cover base, the inner and external water stopping rings are vertically fixed and connected to the inner and outer walls of the plugging sleeve, the water stopping plate and the inner water stopping ring are connected through welding or flange. The device has simple structure, low process cost, convenient use and wide adaptability, and uses unified construction method to replace each plugging process, has rapid plugging, low cost, no construction risk and dangers, avoids the limitless underground water pumping, and protects the environment.

A terminal adapter connects a terminal to a computer local area network capable of identifying any of several terminal types by detecting the presence of a particular identifier electronic circuit specific to one type, even though the terminal does not include any such identifier circuit as standard. The terminal adapter includes first connectors for inserting the adapter between two sections of a connection between the terminal and the network and an identifier circuit specific to one type of terminal that the network is able to detect. The identifier circuit is connected to at least two conductors of a network side section of the connection.

The invention discloses an experimental method of a surge detecting device of a gas compressor. The experimental method comprises the following steps that: surge dynamic pressure digital signals are converted into analog signals by D/A (digital/analog); and a driving displacement mechanism drives a piston to move in a cylinder and generates pressure by change of the volume of gas in the cylinder, so that the pressure is real representation of dynamic pressure digital signals, and the surge detecting device of the gas compressor installed on the cylinder can be checked, inspected or studied. The experimental method disclosed by the invention has the advantages that the consistency of the experimental condition and the working condition of the surge detecting device is guaranteed, the dynamic pressure digital signals of surge of the gas compressor generated by numerical simulation are realized into real dynamic pressure, and the surge forcing experiment of the gas compressor can be avoided or reduced; the experimental method has the characteristics of flexible experimental parameter setting and easiness in adjustment; and the experimental method disclosed by the invention is easy in implementation, low in energy consumption, short in period and good in repeatability.

A method for protecting microgrid feeder includes collecting feeder current and bus voltage, calculating current direction, current variation value and bus zero-sequence voltage value of each feeder,utilizing IEC 61850-GOOSE network communication protocol receives a protection start signal sent by a downstream protection, A sudden change of feed current is adopted to start that protection, the voltage change and current direction are used as the comprehensive criterion to find out the faulty circuit, At the same time, over-current protection is set as backup protection under abnormal communication conditions, which can solve the problem that over-current or directional over-current protection action is not reliable when feeder fault occurs in micro-grid, resulting in power loss of the whole network, and realize fast and accurate fault location and fault tripping isolation. The invention also provides a corresponding feeder protection device.

The invention relates to an intelligent plug and a socket for safe power use. The plug comprises a plug housing and insertion sheets. The plug housing is provided therein with a switch sliding plate and a moving block. A first baffle plate and a second baffle plate are capable of being inserted into the clamping grooves corresponding to the insertion sheets, the switch sliding plate and the moving block. The direction guide column of the moving block penetrates the electromagnetic coils. A first spring is fixed between the plug housing and the insertion sheets; a second spring is fixed between the push plate of the moving block and the plug housing; the plug housing is provided therein with a coil switch and a position limiting switch. For the conductive wire between the two insertion sheets, the two insertion sheets are connected in series with the electromagnetic coils, the coil switch and the position limiting switch. The socket comprises an insertion and connection cavity that matches the plug housing. The insertion and connection cavity is provided therein with a first socket clamping block that clamps with the sliding plate clamp on the switch sliding plate and a second socket clamping block that clamps with the operation port on the plug housing. According to the invention, in the plugging process, the sheets could automatically pop out and are collected so as to avoid electric shocks and igniting accidents. When plugged, the plug and the sockets are well fixed, providing safe and convenient use.

The invention relates to an additive of a wool making solution for monocrystalline silicon pieces, containing the components of lactic acid, vitamin and the balance of water. When the monocrystalline silicon pieces for solar cells are subjected to surface wool making, the additive is added in the alkali wool making solution so that an excellent wool making effect is achieved.

The invention is directed to stabilizing functionalized polymers and compositions containing polysaccharides and polysaccharide derivatives functionalized with amine, alkyl and/or alkyl/amine moieties, and methods for reducing swelling of soils and especially clay-containing soils with stabilization functionalized polymers and compositions of the invention.

The invention discloses a printed circuit board with embedded micro-channels. The printed circuit board comprises an embedded micro-channel metal core plate, wherein the top part of the embedded micro-channel metal core plate is provided with n wiring layers I, the bottom part of the embedded micro-channel metal core plate is provided with m wiring layers II, and the printed circuit board is provided with a liquid inlet and a liquid outlet which are communicated with the micro-channel. The structure has efficient heat dissipation capability, can realize transmission of high-density electrical signals, and meets the application requirements of high-density integrated high-power electronic devices.

The invention discloses a water-based polyurethane, which comprises the following components in portion by mass: 20 to 80 portions of polyol resin emulsion, 1 to 5 portions of zeolite powder, 0.2 to 0.5 portion of wetting dispersant, 0.4 to 0.8 portion of epoxy resin curing agent, 0.1 to 1 portion of organic drier, 20 to 80 portions of water-based curing agent, and water which is added based on the viscosity of the water-based polyurethane. The water-based polyurethane overcomes the defects that the conventional solvent-based polyurethane is water-insoluble, has poor environment protection property and the like, has the advantages of low viscosity, sprayability, convenient construction, no dangers of flammability and explosiveness, washability with water, good paint film adhesive force, excellent chemical resistance, high-degree abrasive resistance and tenacity and the like, can be used for preparing a varnish applied to water-based wood lacquers, can be used as a colored paint by adding color fillers, can be mixed with cement, is quickly cured for repair work, and can also be applied in the fields of floor coatings, binding agents, mold injection molding, electric appliance packaging, chemical grouting and the like.