358results about How to "Reduce spread" patented technology

A prosthesis for transluminal implantation consists of a flexible tubular three-dimensionally braided structure of metal or polymeric monofilaments, and polymeric multifilament yarns. The prosthesis can be elastically deformed to reduce its diameter through axial elongation. The monofilaments and multifilament yarns are arranged in axially spaced apart helices, concentric on a common central axis of the prosthesis. The monofilaments are selectively shaped before their interbraiding with the multifilament yarns, either by an age-hardening or other heat-setting stage, or a cold-working stage that controllably plastically deforms the strands. The shaped structural strands cooperate to impart to the prosthesis its nominal shape and resilience. The textile strands cooperate to provide one or more layers of sheeting that reduce permeability and thereby enhance the utility of the prosthesis as a vascular graft. An alternative embodiment prosthesis includes elastically and plastically deformable structural strands, selectively plastically deformed by cold working, then three-dimensionally braided to form the prosthesis.

A memory interface (20) for receiving memory signals individually synchronizes data signals to a delayed strobe signal in order to reduce the spread of the data signals prior to sampling. A delay is increased for an individual data signal if it transitions prior to the delayed strobe signal and the delay is decreased if the data signal transitions after the delayed strobe signal.

The invention relates to a silver alloy wire and a preparation method thereof. The silver alloy wire is prepared from the following components of 0.5-10 percent of Au, 0-1 percent of Pt, 1-6 percent of Pd, 0-1 percent of Rh, 0-1 percent of Cu, 0-500ppm of Ln, 0-200ppm of Ce, 0-0.5 percent of Al, 0.7-3 percent of Ti, 0-0.2 percent of Si, 0-0.3 percent of Zn, 0-1 percent of Sn, 0-10 percent of Be and the balance of Ag. A directional continuous casting process is adopted. The prepared silver alloy wire overcomes the problem that the bonded silver wire is easily subjected to sulfur corrosion in the prior art, and has a series of other excellent characteristics.

Compounds and pharmaceutical compositions containing the same are provided, which are useful in therapeutic treatment or prevention of various diseases.

The invention discloses a nitride LED (light-emitting diode) structure. A P-type doped InGaN/GaN superlattice structure is inserted between a multiple quantum well active layer and an electronic barrier layer so as to improve the hole concentration and reduce the dosage concentration of the P-type hole injection layer; the superlattice structure has polarization effect, thus being capable of improving the doping efficiency and reducing the P-type impurity concentration; and impurity atoms are prevented from being diffused to the potential well, and the inner quantum efficiency and the luminous efficiency of the device can be improved. The invention also discloses a preparation method of the nitride LED structure, through inserting the P-type doped InGaN/GaN superlattice structure between the multiple quantum well active layer and the electronic barrier layer, the hole concentration can be improved, and the dosage concentration of the P-type hole injection layer can be reduced; since the superlattice structure has polarization effect, the doping efficiency can be improved and the P-type impurity concentration can be reduced; and the impurity atoms are prevented from being diffused to the potential well, and the inner quantum efficiency and the luminous efficiency of the device can be improved.

The invention discloses a compound material manufacture technology that uses modified nanometer kaolin to take place of nanometer montorillonite clay as antiflaming synergic action bulking agent. It contains matrix resin, fire retardant, antiflaming synergic action bulking agent, lubricant, and antioxidant; the matrix resin is the mixture of ethylene vinyl acetate copolymer, thermoplastic elastomer and grafting compound. The fire retardant contains three type fire retardants; and the antiflaming synergic action bulking agent is kaolin. The weight portions of the constituents are: 100 portions matrix resin, 100-140 portions fire retardant, 10-30 portions, 1-5 portions lubricant, 1-3 portions antioxidant. The invention has the advantages of low cost, easy technology, and excellent flame retardant property.

The invention discloses an instant execution method of a block chain based on homomorphic encryption. The instant execution method includes the steps: encrypting data needing to be shared by using ahomomorphic encryption algorithm; outputting the encrypted data; jointly generate cooperation parameters by multiple participants; and verifying that the input and output of the encrypted ciphertext amount in the transaction are equal, and executing a response or write operation on accounts of a transaction initiator and a transaction receiver with readable or writable authority, wherein incentivepayment is used for encouraging a resource provider to share redundant memory and bandwidth resources as cache nodes of a transaction flow. According to the instant execution method of a block chainbased on homomorphic encryption, the block chain is used to carry out hierarchical linking on each service node, so as to ensure that the data exchange record is real and reliable and cannot be tampered, and meanwhile, for the data distribution problem, in combination with a blockchain cross-chain and instant execution contract technology, the blockchain-based data distribution system is provided,thus changing the traditional data distribution mode, and promoting the system maintenance on the system safety, stability and other performances through an incentive payment excitation measure.

Compounds represented by the following structure (I) are disclosed:

as are methods for making such compounds, wherein said methods comprise reacting a diacyldiketopiperazine with a first aldehyde to produce an intermediate compound; and reacting the intermediate compound with a second aldehyde to produce the class of compounds with the generic structure, where the first aldehyde and the second aldehydes are selected from the group consisting of an oxazolecarboxaldeyhyde, imidazolecarboxaldehyde, a benzaldehyde, imidazolecarboxaldehyde derivatives, and benzaldehyde derivatives, thereby forming the above compound wherein R₁, R₁′, R₁″, R₂, R₃, R₄, R₅, and R₆, X₁ and X₂, Y, Z, Z₁, Z₂, Z₃, and Z₄ may each be separately defined in a manner consistent with the accompanying description. Compositions and methods for treating vascular proliferation are also disclosed.

The invention relates to an oxidation resistant coating for aluminum electrolytic carbon anode and a coating method thereof. The method is characterized in that the surface of the aluminum electrolytic carbon anode is provided with an anti-oxidation coating formed by dried and mixed coat which is sprayed on the surface of the electrode, wherein the mixed coat comprises the following compositions in weight percentage: 1 to 25 percent of bisphenol A-type waterborne epoxy resin, 0.1 to 16 percent of boron carbide, 2 to 13 percent of boric acid and/or boric oxide, 15 to 50 percent of alumina, 0 to 20 percent of pseudo-boehmite, 10 to 30 percent of alumina sol, 0.1 to 0.3 percent of foam suppressor, and the balance being water. The coating and the method adopt an alumina-based gradient boron carbide oxidation resistant coating with a multilayer structure, and effectively blocks the contact of air and CO2 with carbon anode carbon, thereby avoiding or reducing excessive consumption of the carbon anode carbon. The method can realize carbon conservation by aluminum electrolytic prebaked anode by 10 to 20 kilogram/ton-Al.

The invention discloses a natural color, flammable and antistatic polyolefin master batch, pertaining to the field of the preparation technology of master batches for the engineering plastic modification. The master batch comprises matrix resins, nano-silicate, coated red phosphorous agents, antistatic agents, polysiloxane silicone surface surfactants and boride charring agents. The weight percentages of the components are as follows: 5 percent to 20 percent of matrix resins, 3 percent to 5 percent of nano-silicate, 20 percent to 50 percent of coated red phosphorous agents, 10 percent to 20 percent of antistatic agents, 1 percent to 2 percent of polysiloxane silicone surface surfactants, and 10 percent to 15 percent of boride charring agents. The polyolefin is used as the matrix resins, and after a plurality of repeated tests and study the component percentages and technique of the flammable antistatic polyolefin master batch are reasonably determined, therefore the production of the master batch with three efficacies, namely, natural color, flammable and antistatic properties is realized; the problem of single color (black) of the flammable antistatic polyolefin master batch series can be solved and colorful plastic products can be prepared to enrich the environmental senses.

The invention discloses a root-promoting liquid fertilizer, which is prepared from the following raw materials in parts by weight: 2-4 parts of ferrous sulfate, 2-3 parts of ammonium molybdate tetrahydrate, 1-3 parts of potassium pyrophosphate, 5-7 parts of short rhizome of spathiphyllum, 6-9 parts of castor cake, 15-20 parts of bran, 5-8 parts of potassium sulfate, 7-10 parts of urea, 2-4 parts of matrine, 2-3 parts of zinc sulphate heptahydrate, 0.1-0.2 part of 6-benzylaminopurine, 0.1-0.2 part of triiodobenzoic acid, 4-8 parts of rose, 10-14 parts of brewer's grains and 8-12 parts of an ingredient. Due to the addition of the 6-benzylaminopurine, the triiodobenzoic acid and the like, the liquid fertilizer disclosed by the invention has the function of adjusting the raw materials with a crop growth function, and is capable of effectively promoting rooting and formation of flower buds of the crops; the nutrient components of a microelement fertilizer can be increased by extract liquids such as chaff and brewer's grains; and the root-promoting liquid fertilizer is convenient to use, and obvious in yield-increasing effect, and has a good application prospect.

A systematic temperature compensation method for a laser inertial measurement unit based on spline interpolation iterative correction, provided by the invention, comprises the following steps: (1) obtaining gyro and accelerometer zero offset and scale factors corresponding to different temperature points in a preset temperature range; (2) establishing the initial temperature model of the gyro andaccelerometer zero offset and scale factors by using a cubic spline interpolation technology; (3) offline compensating obtained gyro and accelerometer pulse output values; (4) calculating the zero offset and scale factors corresponding to all the temperature points after the compensation according to the compensated gyro and accelerometer pulse output values; (5) establishing the secondary temperature model of the gyro and accelerometer zero offset and scale factors; (6) normalizing the initial temperature model and the secondary temperature model to obtain a gyro and accelerometer zero offsetand scale factor optimized temperature model; and (7) offline compensating and outputting the actually measured pulse output values of the gyro and the accelerometer by using the optimized temperature model. The method improves the systematic precision of the laser inertial measurement unit.

A light-weight and sound-damped brake rotor for a vehicle braking system includes a rotor hat and a rotor cheek supported by the rotor hat. The rotor hat includes an axially-protruding central hub and a flange that extends radially from and circumferentially around the central hub. The rotor cheek, which provides at least one braking surface, is formed from two or more separate and distinct pieces which are fixedly secured to the flange of the rotor hat. Located within the rotor cheek underneath the at least one braking surface is a vibration damping element. The brake rotor derives its vibration-deadening and sound-damping effects from the vibration damping element through the occurrence of relative frictional contacting movement.

A method and assembly for monitoring at least one condition outside of a containment device containing a gaseous or fluid substance and an inlet and outlet attached to the containment device. The method includes the steps of providing a monitoring system having a housing surrounding the containment device extending an inlet and outlet through openings in the housing; sealing the housing and sealing around the inlet and outlet so that a cavity internal to the housing is sealed from the exterior environment; providing at least one sensor located in the cavity between the containment device and the housing; connecting the sensor to a unit for monitoring the sensor; sensing at least one parameter indicative of a leak or potential leak of the containment device or attachment of the containment device to the inlet or outlet; and providing alerts of the leak or potential leak.

The invention relates to a method for a composite centrifugal casting high-chromium steel roller. The invention is characterized in that a semi-steel intermediate transition layer is arranged between a high-chromium working layer and a nodular-cast-iron core. The steel roller is produced through the following steps: smelting; modifying the semi-steel intermediate transition layer and the external high-chromium cast steel respectively, and nodulizing and inoculating melted iron used for preparing a nodular-cast-iron core; carrying out centrifugal casting; casting the nodular-cast-iron core; and cooling at room temperature and carrying out heat processing. The semi-steel intermediate transition layer comprises the following chemical components in percentage by weight: 1.0-2.2% of C, 0.4-1.5% of Si, 0.4-1.5% of Mn, 0-0.1% of P, 0-0.03% of S, 0-0.2% of Cr, 1.0-2.0% of Ni, 0.2-1.0% of Mo and the balance of Fe. The method provided by the invention has the beneficial effects that the bonding strength of the high-chromium working layer and the nodular-cast-iron core is enhanced, and occurrences of bonding-layer stripping and roller breakage accidents of the high-chromium composite cast steel roller are avoided.

The invention discloses a high-double bond content allyl polyether production method and belongs to the technical field of polyether compound synthesis in organic chemistry. In an anoxic environment, at a temperature of 110-140 DEG C, under catalysis action of an allyl alcohol solution of sodium allylate, allyl alcohol and an epoxy compound are mixed and undergo a reaction, the reaction product is aged and cooled to form an allyl polyether crude product, the allyl polyether crude product and water are mixed, the mixture is neutralized and filtered, and a liquid phase is collected and is allyl polyether. The prepared allyl polyether has molecular weight of 200-8000, double bond content greater than or equal to 98% and a molecular weight distribution coefficient less than or equal to 1.05. In catalyst preparation, an outer circulation reaction vessel with two condensers utilizing a freezing liquid for condensation is used so that a reaction rate is accelerated, an allyl alcohol loss is less than 0.2% and environmental pollution is reduced.

To attain objects to reduce the spread of electrons as compared with a conventional one without degrading the multiplication factor of electrons; to provide a large electron multiplication factor; and to improve positional resolution, there is provided a gas electron multiplier using interaction between radiation and gas through photoelectric effects including: a chamber filled with gas and a single gas electron multiplication foil arranged in the chamber wherein the gas electron multiplication foil is made of a plate-like multilayer body composed by having a plate-like insulation layer made of a macromolecular polymer material having a thickness of around 100 μm to 300 μm and flat metal layers overlaid on both surfaces of the insulation layer, and the plate-like multilayer body is provided with a through-hole structure.

The invention relates to a method for preparing a small molecule hydrophilic drug-embedded sustained-release capsule. The method comprises the following steps: filtering a prepared'internal aqueous phase/oil phase/external aqueous phase' pre-multi-emulsion solution through a microporous membrane; and then removing a solvent, washing and drying to obtain the small molecule hydrophilic drug-embedded sustained-release capsule, wherein the internal aqueous phase comprises a small molecule hydrophilic drug and a thickening agent. The small molecule hydrophilic drug-embedded sustained-release capsule provided by the invention has the advantages of uniform grain diameter, high embedding rate, low burst-release rate, stable drug release and long action.

The invention provides a prussian blue positive pole material and a preparation method thereof, and an electrochemical energy storage device. The molecular formula of the positive pole material is AxMc[M'(CN)6]y, wherein the A is one or more of H<+>, Li<+>, Na<+>, K<+> and NH4<+>, the M is transition metal, and M' is also the transition metal, 0 < x <= 2, 0 < y < 1, and 0 < c <= 1. The positive pole material has a porous structure and a high specific surface area, so that the diffusion and transmission path of ions and electrons can be obviously shortened, both the ion and electron conductiveproperties of the electrochemical energy storage device can be enhanced, and therefore, the cycle performance and rate performance of the electrochemical energy storage device can be improved; and thecontact with a conductive agent can be also increased, the electron conductive properties of the electrochemical energy storage device can be further enhanced, and the cycle performance and rate performance can be further improved as well.

The invention discloses a production technology for polycrystalline silicon. The production technology includes the following steps: 1, a first coating, a second coating and a third coating are sequentially arranged on the surface of a crucible from inside to outside, and a crystalline silicone leftover material layer is laid; 2, a small quantity of raw polycrystalline silicon materials in the melted state is contained in the crucible, and the temperature of the crucible is controlled to be lower than the melting point of the crystalline silicone leftover material layer to enable the small quantity of melted raw polycrystalline silicon materials to form a crystallization protection layer; 3, in the vacuum environment, to-be-processed raw polycrystalline silicon materials are contained in the crucible, placed in a melting furnace with an electron beam generating device and processed through laser irradiation; 4, high-frequency induction heating is carried out in the vacuum environment, a slag forming constituent is added, plasma heating is carried out, steam-and-hydrogen-mixed argon is introduced, and directional solidification is carried out to obtain the polycrystalline silicon serving as the target product. By means of the production technology, the boron content, the phosphorous content and the metal impurity content can be effectively reduced, the complete polycrystalline silicon is prepared, long crystal dislocation is less, grain boundaries are proper, and the conversion rate of a polycrystalline silicon battery is increased.

The invention discloses a method for molding a vertical wall of a deep foundation pit. The method comprises the following steps: drilling a plurality of presplit holes on a preset edge of the foundation pit and filling each presplit hole with a stick dynamite and a detonating fuse connected with an instant electric detonator outside the hole by adopting full-pit-depth one-step drilling molding; forming a buffer hole, a main explosion hole and a cutting hole in turn from outside to inside on the surface layer of the foundation pit; arranging segmented stick dynamites and non-electric millisecond difference detonators in the buffer hole, the main explosion hole and the cutting hole, wherein the non-electric millisecond difference detonators are connected with the instant electric detonators; after all the instant electric detonators are connected with each other in series, connecting all the instant electric detonators to a trigger; igniting a plurality of rows of blast holes at the same time and detonating the presplit hole, the cutting hole, the main explosion hole and the buffer hole in turn; after blasting, performing digging and transportation and wall surface timbering in sequence; blasting step by step to the bottom of a preset foundation pit; and manually repairing and scattering the bottom of the foundation pit. The method has the advantages of little construction difficulty, high protection safety, short construction period, stable engineering project quality and excellent comprehensive benefit.

The invention discloses a fireproof explosion-proof high-low voltage switch cabinet, which relates to the technical field of switch cabinets. The fireproof explosion-proof high-low voltage switch cabinet comprises a cabinet body, a cabinet door and an explosion-proof device, wherein the cabinet door used for displaying the temperature of each cavity of the switch cabinet is hinged to the front face of the cabinet body; the explosion-proof device used for ventilation and air diffusion is fixedly installed in the cabinet body; and an air inlet fan, a dust exhaust hole and a filter plate are arranged in the cabinet body. A controller, the air inlet fan and an exhaust fan are arranged, external air is extracted by the air inlet fan and is sequentially filtered by a first filter hole and a second filter hole to effectively filter impurities, and the problem that impurities easily enter the switch cabinet to block electrical equipment due to a conventional heat dissipation mode is solved. The device is good in filter effect, prevents impurities from blocking electrical equipment and reduces the heat dissipation effect, prolongs the service life of the electrical equipment, reduces the probability of open fire of the electrical equipment caused by overheating, and prolongs the service life of the device.

The invention relates to a preparation for a lithium sulfur battery modified anode material. The preparation includes mixing sublimed sulfur and a conductive agent according to a mass ratio of 6:3, adding absolute ethyl alcohol, performing ball milling for 6 hours, drying in a vacuum drying box for 12 hours at the temperature of 50 DEG C to 80 DEG C to obtain a mixture, mixing the mixture and hollow nickel fiber tubes according to a mass ratio of (5-9):1, adding an adhesive, dispersing in a dispersing agent, stirring to obtain slurry, coating the slurry on a metal aluminum foil which is subjected to acetone ultrasonic cleaning, and drying in the vacuum drying box for 12 hours at the temperature of 60 DEG C to obtain the lithium sulfur battery anode material. The preparation for the lithium sulfur battery modified anode material has the advantages that electrochemistry performances of battery cyclicity and the like are improved, and the performances and cyclic service life of the battery can be improved.

The invention provides a controlled-release formula fertilizer, a preparation method and application thereof. The controlled-release formula fertilizer comprises more than two controlled-release fertilizers with different release periods and at least one quick-acting chemical fertilizer. Supply of the fertilizer is coordinated with the fertilizer requirement rule of plants.

The invention provides a water spraying fireproof door capable of delaying fire, including a frame, a rectangular bucket, bakelite plates, an evaporation cavity, an evaporation liquid, a water pipe, water, an evaporation box, an air pipe, a balancing weight, a rubber sheet, a clamping block, a gasket, a sheet, an air outlet, a nozzle and a protrusion; the rectangular bucket is seamlessly welded atthe bottom of the inner wall of the frame; two bakelite plates are adhered to the inner wall of the rectangular bucket through structural adhesives; and the evaporation cavity is formed in the rectangular bucket, the evaporation box is embedded and welded to one side of the frame, the air pipe is seamlessly embedded into the top of the evaporation box, the evaporation cavity and the evaporation box are filled with evaporation liquid with uncertain shapes, the water pipe is embedded into the frame, the rectangular bucket is filled with water with uncertain shapes, and the balancing weight is arranged between the bakelite plates in a seamless sliding mode. The water 7 in the rectangular bucket 2 can be rapidly sprayed out of the frame 1 through the water pipe 6 and the nozzle 16 when the frame 1 encounters a fire, so that the fire spreading function is greatly slowed down, and precious time is gained for people to escape.

Disclosed herein are antitumor compositions and methods of interfering with the biological activity of PC cell derived growth factor (PCDGF), anti-PCDGF receptor antibodies, fragments thereof, and methods of making anti-PCDGF receptor antibodies. The methods involve inhibiting the proliferation of tumor cells expressing the PCDGF receptor by contacting the surface of the cell with anti-PCDGF receptor antibodies. Anti-PCDGF receptor antibodies are capable of binding to the surface of a cell and interfering with the binding of PCDGF to its receptor. Also provided are compositions comprising anti-PCDGF receptor antibodies and cytotoxic molecules (e.g., toxins, oncotoxins, mitotoxins, immunotoxins, and antisense oligonucleotides).

The invention discloses a building outer face fire simulation apparatus, characterized by comprising: a multi-layer combustion chamber, a simulated side wall, a moving platform, an armored thermocouple probe, a heat radiation flux measuring instrument, a thermocouple patch, a glass frame, sunlight-controlled film-coated glass, simulated combustibles, a water-cooled heat flow meter, an axial fan, a DV camera, and a telescopic fireproof cornice. The multi-layer combustion chamber is formed by the lamination of two combustion chambers. The simulated side wall is combined with the wall faces with windows to form a U shaped structure. The telescopic fireproof cornice is arranged at the upper part of the lower-layer combustion chamber's windows. The apparatus of the invention can be used in the research on the fire spreading condition of the outer wall face of a high rise building under the action of an environmental wind, the research on the development characteristics of the fire flames and the smoke plume under the restrictive condition of the side wall as well as the characteristic rule of a secondary fire generated from the fire overflow at the outer side of the building into the upper layer combustion chamber, so as to provide reference to fire prevention designs for similar buildings.

The invention discloses a novel cryogenic soaping agent. The novel cryogenic soaping agent is characterized by comprising the following components in percentage by weight: 5-25% of laccase, 25-45% of persulfate, 15-35% of alkali, 15-25% of polyvinylpyrrolidone, 15-25% of sodium polyacrylate and 5-10% of sodium carboxymethyl cellulose. The novel cryogenic soaping agent is applied to a soaping process after reactive dyeing, and can effectively remove a flooding color, a paste material and an auxiliary agent on fabric at a relatively low temperature to improve the color brilliance, color fastness and cleanliness of the fabric.

The invention provides a high temperature oxidation-resistant thermal barrier coating layer with a composite structure. The high temperature oxidation-resistant thermal barrier coating layer comprises a metal bonding layer, a first ceramic layer, a second ceramic layer, a metal deposition layer, a third ceramic layer and a fourth ceramic layer deposited at the top of a high-temperature alloy basal body in sequence; the first ceramic layer and the third ceramic layer are both isometric crystal structures; the second ceramic layer and the fourth ceramic layer are both columnar crystal structures; components of the ceramic layers are ZrO2 with stable Y2O3; components of the metal bonding layer are MCrAlY; and components of the metal deposition layer are MCrAlY or NiAl, wherein M is Ni or/and Co. The invention further provides a method for preparing the high temperature oxidation-resistant thermal barrier coating layer. The high temperature oxidation-resistant thermal barrier coating layer has multiple layers of laminated isometric crystal and columnar crystal structures, and is excellent in oxygen resistance and thermal shock resistance; and the preparation method is simple in process, excellent in repeatability and easy to operate.

The invention relates to the field of composite board welding methods, in particular to a high-efficiency welding method of a stainless steel composite board. The high-efficiency welding method of the stainless steel composite board comprises the following steps: processing grooves; cleaning and pairing the grooves; welding a base layer on the side of a composite layer; welding the composite layer; welding a base layer on a back surface. The high-efficiency welding method of the stainless steel composite board has the beneficial effects that since electroslag welding with wire electrodes is adopted for welding the composite layer and electrode wires with content of Cr and Ni which is close to the content of Cr and Ni of composite materials, low-carbon weld metal with excellent corrosion resistance is guaranteed to be obtained; since the electroslag welding with wire electrodes has the characteristics of small weld depth and large weld width, welding passes can be effectively reduced, the reduction of the welding passes means the simplification of the welding process, the welding efficiency is improved and the probability of occurrence of defects such as incomplete fusion and slag inclusion is also greatly reduced; since the base layer of the back surface is welded by adopting 450A-500A large-current submerged-arc welding, the weld penetration of base metal can be effectively guaranteed, the defect of incomplete fusion is precluded from occurring and the welding efficiency can be greatly improved.