120results about How to "Good controllability" patented technology

Methods for performing microfluidic sampling are provided. The method includes providing a substrate including an arrangement of first, second and third electrodes, wherein the second electrode is interposed between the first and third electrodes. The method additionally includes causing a fluid input to continuously flow to the first electrode and biasing the first, second and third electrodes to a first voltage to cause a portion of the fluid input to spread across the second and third electrodes. The method further includes biasing the second electrode to a second voltage different from the first voltage to form a droplet on the third electrode, the droplet being separate from the fluid input.

A memory device of a resistance variation type, in which data retaining characteristic at the time of writing is improved, is provided. The memory device includes: a plurality of memory elements in which a memory layer is provided between a first electrode and a second electrode so that data is written or erased in accordance with a variation in electrical characteristics of the memory layer; and pulse applying means applying a voltage pulse or a current pulse selectively to the plurality of memory elements. The memory layer includes an ion source layer including an ionic-conduction material and at least one kind of metallic element, and the ion source layer further contains oxygen.

A circuit pattern is formed by following steps: forming a light-blocking mask over a major surface of a light-transmitting substrate, forming a first film in a first region over the substrate and the mask, forming a photocatalytic film in at least a part of the first region over the first film, changing wettability of the first film in a second region which is in the first region, being in contact with the photocatalytic film, and not overlapping the mask, by light irradiation from a back surface opposite to the major surface of the substrate, removing the photocatalytic film, and forming a composition including a pattern forming material in the second region.

Provided is a crystalline multilayer structure having good semiconductor properties. In particular, the crystalline multilayer structure has good electrical properties as follows: the controllability of conductivity is good; and vertical conduction is possible. A crystalline multilayer structure includes a metal layer containing a uniaxially oriented metal as a major component and a semiconductor layer disposed directly on the metal layer or with another layer therebetween and containing a crystalline oxide semiconductor as a major component. The crystalline oxide semiconductor contains one or more metals selected from gallium, indium, and aluminum and is uniaxially oriented.

The invention relates to a one-stage method for preparing a metal matrix light-weighted composite material. The invention uses the method of pressure maintaining percolation and vacuum suction casting to make molten metal immerse into the gaps among hollow spheres by penetrating through a porous ceramic plate or a graphite plate under the function of negative pressure, after the molten metal is cooled down after totally infiltration, and finally, the molten metal is demoulded and taken out, then a foamed metal matrix composite material including closed bubbles can be obtained. The hollow spheres are mixed hollow spheres of two or more than two kinds of Al2O3 hollow spheres, SiC hollow spheres, C hollow spheres or glazed hollow beads of different or same sizes. The porosity of the metal matrix composite material prepared by the method of the invention can reach more than 60% and the density can be obviously reduced, besides, the compression strength can be improved by 20-50% compared with the similar product, so that the high-strength and light-weighted matrix light-weighted composite material with various functions like damp shock absorption, sound insulation and noise reduction, energy absorption can be obtained. According to the one-stage method for preparing the metal matrix light-weighted composite material disclosed by the invention, the process is simple, the procedure is less and the applicable range to the varieties and sizes of the hollow sphere particles is wide, and nearly no selection to the matrix metal, the foam metal products of different densities can be prepared.

The invention discloses biomedical polysaccharide hemostatic and healing sponge and a preparation method thereof, and belongs to the technical field of medical materials. The preparation method comprises the following steps: firstly, dissolving a polysaccharide material carboxymethyl cellulose, hyaluronic acid or a mixture thereof into an alkaline solution, stirring sufficiently, and swelling into colloid; secondly, adding a crosslinking agent into the colloid, stirring sufficiently, incubating into uniform gel, and dialyzing and purifying the obtained gel; thirdly, adding glycerin into the purified product, stirring at a high speed for bubbling, and pouring into a lyophilizing disk; and finally, performing freeze drying at a low temperature to obtain dehydrated sponge. The hemostatic and healing sponge prepared with the method is good in flexibility, do not drop crumbs, is strong in liquid absorption, can provide a wet environment to a wound, is non-stick to the wound, is good in biocompatibility, is qualified in heavy metal detection and endotoxin detection, is non-cytotoxic in a bio-safety test, is free of intradermal irritation and sensitization response, and has the functions of stopping bleeding rapidly, absorbing exudate and promoting wound healing.

The invention provides a medical device for treatment of an obstructed vessel, the apparatus comprising: (a) an external conduit comprising a proximal end, a distal end, a cylindrical outer surface sized for passage through a blood vessel, and an internal lumen, the conduit lumen being threaded within at least a portion of the length of the conduit at the distal end, and (b) a shaft comprising a proximal end, a distal end, an internal lumen, and a cylindrical outer surface fitted inside the conduit lumen and having external threading over at least a portion of the length of the shaft at the distal end; where the shaft threading engages the external conduit threading allowing the shaft to be advanced through the lumen by rotation of the shaft.

The invention relates to a gravitational potential energy recovery device during descending of an engineering machinery movable arm, comprising three parts, i.e. a hydraulic device for driving the movable arm to work, an accumulator device and a hydraulic system safety protection device, wherein the hydraulic device adopts two bidirectional quantitative hydraulic pumps-motors, an oil port thereof is respectively connected with a rod cavity of a movable arm cylinder (10) and an accumulator (9) by a connecting pipeline, and another oil port thereof is connected with a rodless cavity of the movable arm cylinder (10) by a connecting pipeline; the two bidirectional quantitative hydraulic pumps-motors are driven by mechanical transmission or driven coaxially; the flow ratio of the two bidirectional quantitative hydraulic pumps-motors is 1:(K-1), wherein K is the area ratio of the rodless cavity and the rod cavity of the movable arm cylinder; and the hydraulic system safety protection device mainly comprises three groups of overflowing valves and three groups of check valves which are respectively arranged on connecting pipelines.

The invention discloses a composite membrane reinforced by an inclusion complex of ring molecules and a polymer. The composite membrane is mainly formed by a polymer layer consisting of a linear polymer or a branch polymer and an inclusion complex layer formed by serially sleeving the ring molecules on partial chain links of the polymer which are compounded and accumulated layer by layer. The preparation of the composite membrane mainly comprises the following steps: a polymer component and a ring molecule component are dissolved into a solvent respectively to be prepared into a solution; and a substrate material is alternately immersed into the solution prepared by the polymer component and the ring molecule component, is kept stand for a period of time, and is taken out to remove excessive adhesive substances, and a multi-layer membrane system can be obtained by circulating the process. Compared with the prior art, a supermolecular multi-layer membrane greatly strengthens the mechanical property and the friction-resistant performance of the multi-layer membrane by introducing a self-assembling inclusion component of the polymer and the ring molecules, and has broad varieties of selectable polymers and broad application prospect.

The invention provides a sliding control method and device for a touch screen as well as electronic equipment. The sliding control method for the touch screen comprises steps as follows: sliding operation performed by a touch body on the touch screen is detected, and corresponding location information, sliding direction and inertial sliding initial speed of a display window when the sliding operation is ended are acquired; an inertial sliding speed of the display window is self-adaptively determined according to the inertial sliding initial speed; an inertial sliding distance of the display window is determined according to the inertial sliding speed; the display window is moved in the sliding direction according to the corresponding location information and the inertial sliding distance of the display window when the sliding operation is ended. The technical scheme has the beneficial effects as follows: the inertial sliding speed of the display window can be self-adaptively adjusted, and the controllability is good; the processing speed is high, and the compatibility is good.

A three-piece solid golf ball composed of a solid core, an intermediate layer which encloses the core, and a cover layer which encloses and is softer than the intermediate layer is characterized in that the solid core undergoes a deflection of 2.8 to 3.6 mm when a load of 130 kg is applied thereto from an initial load of 10 kg and has a surface hardness and a center hardness which differ by at least 15 Shore D hardness units; the intermediate layer has a surface hardness which differs from the surface hardness of the solid core by not more than 12 Shore D hardness units; and the cover layer has a surface hardness which differs from the surface hardness of the intermediate layer by at least 7 Shore D hardness units, is made primarily of a thermoplastic polyurethane, and has a thickness in a range of 0.5 to 1.3 mm. This combination of features provides an overall outstanding golf ball endowed with excellent flight characteristics, excellent controllability and durability, and a soft feel on impact.

The invention provides a titanium alloy pipe inner wall magneto-rheological polishing method and device. Magneto-rheological liquid is pumped into a polishing head inner cavity along the inner surfaceof a transmission rod under the effect of a creepage pump, and flows over through rectangular holes around the middle of a polishing head, the liquid flows to the polishing area from the left side and the right side, under the effect of a magnetic field, the apparent viscosity and the shear yield stress of the magneto-rheological liquid are rapidly increased, a Bingham medium with certain viscousplasticity is formed, along with relative motion of the polishing head and the pipe wall, the Bingham medium carries out shear removal on the pipe wall material, the magneto-rheological liquid obtained after polishing is collected through magneto-rheological liquid collecting mechanisms on the two sides of a pipe fitting, through filtering and stirring, the polishing process is continuously carried out, and circular utilization of the magneto-rheological liquid is achieved; in the magneto-rheological liquid circulation process, heat generated in the polishing area is brought away. The inner wall of the titanium alloy pipe can be automatically polished, the beneficial effects of being easy to control, good in polishing uniformity, high in work efficiency and the like are achieved, and themethod and device are particularly suitable for polishing treatment of the inner wall surface of the fine and long titanium alloy pipe.

The invention discloses a rock-soil mass high volume expansion cement slurry expansion process visualization device. The device includes a cuboid box for holding soil or rock sample, and the cuboid box has an opening top and a sealed bottom. One side of the cuboid box is open and is equipped with tempered glass, the outer surface of the tempered glass is provided with calibrated scale, the inner side of the tempered glass is provided with a pipe for adding expansion cement slurry, the pipe is internally provided with an anchor rod, the anchor rod is equipped with a pressure sensor and a strain gauge, and the output ends of the pressure sensor and the strain gauge are connected to a data acquisition system. The top of the cuboid box is connected to a mounting plate through a support frame, the bottom of the mounting plate is connected to a jack fixed end, the support frame is internally provided with a bearing plate matching the cuboid box top opening, and the jack telescopic end clings to the upper surface of the bearing plate. The invention also discloses a corresponding use method, thus finally realizing the whole process visualization of time-varying cement slurries with different expanding agent contents and the anchor rod pull-out test destruction mode under different soil compactness or ground stress conditions.

The invention provides a coiled tubing drilling electric-hydraulic control directional tool which comprises a driving part, a hydraulic pump, a reversing valve, a hydraulic cylinder, a drive shaft and a central spindle which are sequentially connected with one another from top to bottom, wherein the hydraulic cylinder comprises a piston, an upper cavity positioned above the piston, and a lower cavity positioned below the piston; the reversing valve is provided with an oil inlet communicated with the hydraulic pump, a first working hole communicated with the upper cavity, and a second working hole communicated with the lower cavity; one end of the drive shaft is connected with the piston; and the other end of the drive shaft can be rotationally connected with the central spindle. According to the invention, flow direction of hydraulic oil is controlled by virtue of the reversing valve, axial reciprocating motion or stop of the piston of the hydraulic cylinder is further controlled, bidirectional rotating or locking of the central spindle is controlled by virtue of the axial reciprocating motion or stop of the drive shaft, and translation is changed into rotation, so that bidirectional continuous control of rotation of a tool face angle can be realized, the tool face is locked by the reversing valve, the hydraulic locking efficiency is improved, and the controllability is high.

The invention relates to a device for continuously polymerizing lactide monomer, wherein said device comprises a tubular polymer reactor, a meter pump and a fuser, which are serially connected; the tubular polymer reactor is formed by several serially connected tubular stable mixers whose diameters are increased stepped; the meter and the fuser are serially connected to the small end of reactor. The invention also provides a relative method, which comprises: adding material into the fuser, to be fused and mixed; using meter pump to feed the mixture into the small end of reactor, to pass all stable mixers; the polymer will be extruded from the large end. The invention has high transform rate, high yield and high quality.

The invention relates to a niobium-doped anode material for a lithium ion battery and a method for preparing the same, belonging to the technical filed of the anode material for the lithium ion battery. The niobium-doped anode material for the lithium ion battery has the chemical formula of Li4Ti5-xNbxO12, wherein the x is equal to 0.05-0.1. The method for preparing the niobium-doped anode material for the lithium ion battery comprises the following steps: mixing niobium source, TiO2 source and lithium source, grinding the mixture by a ball grinder for 6-10h, putting the ground mixture in a muffle furnace, making the ground mixture react at 800-900 DEG C for 16-24h, and naturally cooling the product of reaction to room temperature to obtain the niobium-doped anode material for the lithium ion battery, which has the chemical formula of Li4Ti5-xNbxO12. The method for preparing the niobium-doped anode material for the lithium ion battery uses the raw materials of wide source and no organic chelating agent, is convenient to operate, is controllable and repeatable and ensures that the particles of the niobium-doped anode material for the lithium ion battery are small and are uniform in size and have high crystallinity and the niobium-doped anode material for the lithium ion battery has higher electrochemical performance and is prepared with low cost.

The invention discloses a self-assembly controllable preparation method of a composite of metal nano particles and carbon materials. The self-assembly controllable preparation method comprises the steps that carbon material nano carriers are firstly and fully scattered into an ionic liquid solution through ultrasound, and turbid liquid of the carbon material carriers and the ionic liquid is obtained; then the turbid liquid is transferred into a container, various different metal targets are sputtered into the turbid liquid through using a magnetic control sputtering method, and a mixed solution of the ionic liquid, the carbon materials and the metal nano particles is obtained for the time being; and finally, the ionic liquid is washed clean through adopting a high speed centrifugation method and utilizing an organic solvent of acetone, absolute ethyl alcohol or the like, and the nano composite of the metal nano particles and the carbon material carriers formed through self-assembly can be obtained. By using the self-assembly controllable preparation method, various high-quality composites formed by the metal nano particles and the carbon materials can be prepared through a self-assembly process, the size of the metal nano particles can be controlled through selecting different ionic liquid, and the density of the metal nano particles can be controlled through changing a sputtering condition (see the last paragraph of texts and the last picture). The controllability of the self-assembly controllable preparation method is good, extra reducing agents does not need to be added, and no by-product is produced.

The invention discloses a method for preparing a porous calcium phosphate biological ceramic material. The method comprises the following steps of: 1) adding a hydroxylapatite pre-phase into a die casting mould, compacting and keeping certain time, and taking a compacted green body out; and 2) raising the temperature of the compacted green body to 200 to 500 DEG C and sintering, keeping the temperature for 0.5 to 2h, heating to the temperature at which the hydroxylapatite pre-phase can be changed, stopping heating after the temperature at which the phase change can be ensured is reached, and naturally cooling the green body to room temperature in sintering equipment to obtain the porous calcium phosphate biological ceramic material. The process is simple and is high in controllability, the purity is high, and the strength of the material is influenced slightly. The porous biological ceramic material prepared by the method has better biocompatibility and bioactivity.

The invention discloses a porous layer structure perovskite solar battery and a preparation method thereof. The porous layer structure perovskite solar battery comprises a substrate, a compact layer, a porous layer, a light absorption layer, a hole transport layer and a metal electrode layer which are stacked sequentially. The novel porous layer is used, that is, the porous layer is prepared by utilizing mixture of an upconversion material with NaYF4 as the matrix and TiO2 nano-particles. The upconversion material can absorb near-infrared light and emit visible light. The porous material not only can increase electronic transmission paths and reduce recombination of electron hole pairs, but also can effectively improve the number of photons absorbed by a perovskite film layer. The preparation method has the advantages of being simple in process, good in controllability and high in coordination.

The invention provides a high-capacity high-rate graphite negative pole material used for a lithium ion battery and a preparation method thereof. The interlayer spacing of the material is 0.3382-0.3410 nm, D50 is equal to 15 mu m, the half-cell specific capacity is 360-365 mAh/g, and after a finished product battery is prepared, the pole piece compaction density of the material is 1.65-1.75 g/cc.According to the high-capacity high-rate graphite negative pole material used for the lithium ion battery, pitch and biomass tar are used as raw materials, the material is prepared through cross-linking, polycondensation and graphitization treatment, the preparation method is simple and clean, and industrialization is easy.

The invention relates to a precision machining method for small-aperture rotating shaft symmetric optical cambered elements. The method is based on a precision machine tool for small-aperture rotating shaft symmetric optical cambered elements, and the small-aperture rotating shaft symmetric optical cambered elements made of different workpiece materials are machined by different processes. An inclined shaft superfine milling device, an inclined shaft electrorheological polishing device and a single-point diamond turning device are integrated on a single machine tool, and different machining modes can be switched over rapidly; by a detecting device, on-position measurement and shape error correction on workpieces can be implemented, compensated machining of the workpieces can be realized, and the controllability of a machining path is good; the workpieces are clamped at a time in a machining process, accumulated errors are reduced, assisted working hours are shortened, and the machining precision is improved; the method is suitable for machining and detecting the workpieces with different surface shapes, and interference between a knife and the workpieces can be avoided effectively; the precision machining method is suitable for machining the workpieces made of various materials; and the machining efficiency of surface shapes of workpieces is high.

The invention discloses an automatic-adjustment robot clamp which is arranged on a robot. The automatic-adjustment robot clamp comprises a bearing device, a bearing plate and a clamping device. One end of a rotating arm is connected to one end face of the bearing plate, and the other end of the rotating arm is connected to a mechanical arm of the robot. The clamping device is arranged on the other end face of the bearing plate and composed of a plurality of clamping assemblies. The clamping assemblies are arranged on the bearing plate at intervals through separation devices. Each clamping assembly comprises a clamping air cylinder, two clamping parts and a connection base, wherein the fixed end of the clamping air cylinder is connected to the connection base, the two clamping parts are symmetrically connected to the movement end of the clamping air cylinder, and clamping motion is completed through the drive and control of the clamping air cylinder. The automatic-adjustment robot clamp is simple and sensitive in structure, good in controllability, high in clamping precision and efficiency and good in adaptability and stability.

The present invention relates to structural design of six pole mechanism knee joint with knee moment of force controlling device, it is characterized in that a knee moment of force controlling deviceis set on the hinge shaft of member (5) and (6), said device is composed of step-by-step motor, driving gear wheel on the motor shaft and controllable friction moment of force system, said system adopts left and right symmetrical structure with central line as axle, and said structure mainly includes screw with left and right helix at two ends, left and right spiral nuts, compression spring and friction conical body set on screw, the friction conical body is fixed with member (6), its external conical surface and internal conical surface of member (5) form conical surface friction. Advantagesflexible in operation, good controllability etc.

The invention relates to a method for preparing a transparent yttrium hafnate ceramics, belonging to the ceramics preparation field. In the invention, a solid phase synthesis method or a coprecipitation method is adopted to prepare yttrium hafnate powder, and then the yttrium hafnate after ball milling and screening is subject to shaping, sintering and annealing heat treatment, so as to obtain the yttrium hafnate ceramics. The yttrium hafnate ceramics prepared by the invention has good application prospect in the fields of information detection, laser medium and high temperature visual window and the like with maximum transmission more than 60% in visible light range.

The invention discloses a preparation method and application of ZnO/TiO2 composite powder. The preparation method comprises the following steps: dissolving soluble a zinc salt, a surfactant and butyl titanate in alcohol, and mixing to obtain a raw material liquid; adding a strong base aqueous solution to the raw material liquid under the stirring condition to obtain a mixed liquid; and reacting the mixed liquid at 120-180 DEG C for 8-16h, washing and drying to obtain the ZnO/TiO2 composite powder. The preparation method is relatively low in temperature conditions, good in controllability, simple in preparation and strong in operability, is favorable to industrialized popularization and production, and has wide application prospects. The obtained ZnO/TiO2 composite powder is complete in crystallization, small in original granularity, uniform in distribution and low in agglomeration, and is particularly suitable to be used as an additive for an automobile paint to be applied to the automobile paint, so that the automobile finish coat has the advantages of being plump in lacquer film, level and bright, strong in adhesion force, high in hardness, good in light retention rate, excellent in natural solarization performance and the like.

The invention relates to gate pole sensitive triggering unidirectional thyristor chip and preparation method thereof. In the gate pole sensitive triggering unidirectional thyristor chip, a surface thin film resistor stripe is connected between a P type connection hole and an N+ emitting region. The preparation method of the gate pole sensitive triggering unidirectional thyristor chip adds steps of LPCVD polysilicon thin film deposition, ion injection polysilicon doping, photoetching thin film resistor stripe, LPCVD oxide layer protection and ion injection doping and annealing between the step of diffusing the N+ emitting region and the step of photoetching groove window. Advantages of the invention lie in: a resistor is added between the gate pole electrode G and cathode electrode K of the thyristor, which may save a resistor during use and reduces influence of temperature to product electrical parameters. The invention can be used in a scale of temperature at -40 DEG C to 110 DEG C. Controllability and consistency of triggering current are great. Scale of I[GT] among batches can be controlled within 20 microamperes. The invention has strong capacity of resisting disturbance and gate pole sensitivity.

The invention discloses a lumbar intervertebral disc degeneration animal model biomechanical builder which structurally comprises a fixing frame, an animal binding and fixing device with an upper body fixing mechanism and a lower body fixing mechanism and a movement control device controlling the upper body fixing mechanism to move. The fixing frame comprises a top frame, a base and a pair of vertical frames connecting the top frame with the base, and a pair of upper sliding rods and an upper threaded screw positioned between the upper sliding rods. The animal model biological mechanical builder can simulate biomechanical and kinetic characteristics of a human spine to enable an experimental animal body to be in six-position composite motion of forward bending and backward stretching, leftward and rightward bending and leftward and rightward rotating under action of the movement control device to nondestructively build a lumbar intervertebral disc degeneration animal model so as to well represent intervertebral disc degeneration etiology, occurrence regularity and pathologic changes; to-be-intervened sections can be selected according to experiments, and the model is controllable and standardized.

The invention provides a control method and a corresponding device for game props used in a batch. The control method comprises steps as follows: a, trigging a prop using quantity counting control related with an object when a predetermined trigger operation on the object in a game is detected, and displaying the prop using quantity in the prop using quantity counting control; b, tracking the motion state of a dragging operation in real time to change the prop use quantity correspondingly when the dragging operation of the prop using quantity counting control is detected, continuously increasing the prop using quantity when the motion state of the dragging operation is detected to be moving in the first direction, and continuously reducing the prop using quantity when the motion state of the dragging operation is detected to be moving in the second direction; c, responding to the stopping position of the dragging operation and determining the prop using quantity. With the adoption of the control method, the prop operation convenience, flexibility and accuracy are improved.

The invention relates to a bicycle slowdown training device with a rear wheel. The bicycle slowdown training device comprises a base, a wheel, a roller device, a driving device and a support steering device, wherein the wheel is rotatably connected to the base, the roller device is rotatably connected to the base and is used for placing the bicycle rear wheel, the driving device is connected between the roller device and the wheel, and the support steering device is arranged between the base and a bicycle. The bicycle slowdown training device can be matched with the existing bicycle, the riding speed of the bicycle is reduced, an exercise effect is achieved, the controllability is good, and the manufacturing cost is low. The bicycle slowdown training device can be used outdoors, and the problems that a traditional bicycle type exercise machine can be only fixed indoors and exercise is boring are effectively solved. The bicycle slowdown training device is matched with the bicycle outdoors, so that the exercise is full of fun.

The invention provides a self-flowing meta-aramid and a preparation method thereof. The preparation method comprises the following steps: 1) dissolving m-phenylenediamine with sulfonic groups and the additive lithium chloride or calcium chloride in a solvent to prepare a solution, maintaining the temperature of the solution to be 80 to 100 DEG C, adding an m-phthalyl dichloride solution, decreasing reaction temperature and adding m-phthalyl dichloride into the solvent of m-phenylenediamine with sulfonic groups under the conditions of inert gas and rapid stirring in 1 to 8 min for a reaction; and 2) adding alkali into the solution obtained in step 1), allowing alkali to react with the solution and adding a quaternary ammonium salt solution for reaction, wherein synthesis reaction is finished after 5 to 7 h, a self-flowing meta-aramid material is obtained, and the self-flowing meta-aramid material has a molecular weight of 2000 to 40000 and a thermal decomposition temperature of 300 to 600 DEG C and can be dissolved in water and most organic solvents. Aramid fibers prepared from the self-flowing meta-aramid material have elongation at break of 2 to 4%, compressive strength of 0.01 to 1.00 GPa, tensile strength of 1000 to 6000 MPa and elastic modulus of 1 to 1.6 MPa. Polymerization in the invention is mild and has good controllability, the structure of quaternary ammonium salt is changed, and dissolving performance of a polymer can be adjusted.