63results about How to "Good competitive advantage" patented technology

The present invention uses “Chip-on-Board” (COB) metal core printed circuit board (PCB) technology in conjunction with high efficiency compact imaging and non-imaging optics to provide an emergency light that is more compact, offers higher performance with respect to luminance levels (higher brightness), longer life, and lower cost relative to systems incorporating pre-packaged LED devices. The thermal impedance between the LED junction and the heat sink is significantly reduced for COB technology by placing the LED die directly on a metal core (or other high thermal conductivity material substrate), thereby increasing temperature dependant life and thermally dependant output power. Additionally, because there is no encapsulant or domed optic over the LED die initially, it is possible to get a much more compact and efficient substantially Etendue (area, solid angle, index squared product) preserving collection optic directly over the die. Cost is significantly reduced for COB configurations due to elimination of the expense of additional components attached to the LED die for the case of pre-packaged LED devices.

The invention provides a method for preparing a construction material by utilizing electrolytic manganese slag, including the following steps: (1) pretreatment: additive is blended in the electrolyticmanganese slag, water is added for fully stirring, and the raw material reacts in the open air for 1-7 days, wherein the added additive is mixture of lime, plaster and kaolin; (2) cement, sandstonescoarse aggregate, sandstones fine aggregate and component selection air entraining agent are added into the electrolytic manganese slag after the pretreatment, water is added and blended evenly to form a mixture; (3) the mixture is loaded into a mould and formed on a compression forming machine by vibration and pressurizing, and then demoulding is carried out; (4) adobe is naturally cured for 14-28 days, thus obtaining the electrolytic manganese slag construction material product. The technique is simple with high product quality and low production cost and has good social, economic and environmental benefits.

The invention discloses a method for melting a nickel alloy by a selective ink instead of a dry film, which comprises the following steps: (1) selectively coating ageing resistant nickel alloy ink on a circuit board by a screen printing technology to form a wet film; (2) drying the ink; (3) exposing the ink; (4) developing the wet film so as to expose the required copper surface; (5) performing nickel alloy melting on the circuit board; and (6) removing the wet film. The selective ink instead of the dry film is used for selective nickel alloy melting, so the cost is greatly reduced, and the combination effect of the wet film and the board surface is superior to the combination effect of the dry film and the board surface, unfavorable phenomena such as diffusion coating and the like can beeffectively prevented, the defective rate of production is reduced and the quality of products is ensured. In addition, the method simplifies the manufacturing flow, saves the ink, greatly reduces theemission of pollutants, saves the expenses of wastewater treatment and is simultaneously favorable for the protection of ecological environment.

The invention relates to a preparation method of boehmite, particularly a preparation method of ultralow-sodium boehmite. In the preparation process, aluminum hydroxide is used as the raw material. The preparation method is characterized by comprising the following steps: adding water into the raw material aluminum hydroxide to obtain a pulp, and carrying out hydrothermal treatment, wherein in the hydrothermal treatment process, boehmite and the like are added as seed crystals to control the granular form of the boehmite, and acid or acidic electrolyte is added to enable the pulp to be weakly acidic, thereby further reducing the sodium content in the boehmite; and filtering, washing and drying to obtain the boehmite. The method provided by the invention has the advantages of simple production technique, wide material source, low production cost and the like, and is an ideal method for preparing ultralow-sodium boehmite and aluminum oxide.

The invention discloses a four-die stepless speed change series-parallel hybrid power driving system, belonging to the technical field of automobile hybrid driving. The system comprises an engine, a clutch, two motors, corresponding transmission chains of the two motors, a power transfer switching device, a planetary gear differential device, a deceleration differential device, an energy storage device and a motor control device. The system provided by the invention has the characteristics of better technical inheritance with existing vehicles, overall dynamic property, fuel economy and low emission, and has functions of four-die driving, stepless speed change and series-parallel system; the problems of insufficient driving power, lack in ramp starting ability, large system volume and high cost of the existing similar technologies and the problems that the stepless speed regulation of the engine cannot be realized and the batch industrialization is difficult as the electromechanical components are difficult to manufacture are solved, and organic combination of high performance, low development cost, low system cost and easy implementation of scale industrialization is realized.

The invention provides micropore type coating sizing and a preparation method of the micropore type coating sizing. The micropore type coating sizing is characterized by comprising the following components in parts by weight: 100 parts of polyurethane resin, 15-25 parts of toluene, 15-25 parts of butanone, 2-6 parts of bridging agent, 1-5 parts of anti-skinning agent, 1-5 parts of waterproof agent and 30-60 parts of water. The preparation method of the micropore type coating sizing is characterized by comprising the following steps of: weighing, adding the raw materials, stirring and sealing up for safekeeping. The invention has the benefits as follows: the bridging agent, the anti-skinning agent and the waterproof agent are used as assistants in a formula and sequentially added in a mixture of polyurethane resin, toluene and butanone, so that the prepared sizing forms a white emulsion system which is stable and can be kept for long time; and the sizing is coated on a textile by a scraper and has a specific micropore structure, so that the prepared fabric has good moisture penetrability and waterproofness.

The invention provides a barrier degradable antibacterial food fresh-keeping film and a preparation method thereof. The preparation method comprises the following steps: drying polylactic acid and anantibacterial nanomaterial, weighing the polylactic acid, the antibacterial nanomaterial, a plasticizer, an antioxidant and a chain extender, and carrying out extrusion granulation on the obtained mixture to obtain modified polylactic acid resin particles; and adding the modified polylactic acid resin particles into a casting machine, extruding the particles to form a casting sheet, and carrying out bidirectional stretching. The barrier degradable antibacterial food fresh-keeping film keeps the performances of a basic film, has excellent antibacterial activity and heat resistance and a high barrier function, can be applied to packaging materials, can replace functional packaging materials such as PVDC, PA and EVOH aluminum-platinum materials, can be completely biodegraded when applied inorder to prevent environmental pollution, can be completely comparable with petroleum-based products in cost performance, and can be widely applied to the fields of precision electronic devices, automobile mechanical parts, foods, medical products and the like.

The invention provides a polyoxyethylene ether monomer which is methoxy polyethylene glycol vinyl ether formed by taking polyethylene glycol monomethyl ether as raw materials and carrying out dehydration reaction, and the structural formula is CH3O(CH2CH2O)nCH=CH2, wherein n is integer within the range of 10-44. The polyoxyethylene ether monomer reserves the advantages of the existing water reducing agent monomer compound and overcomes the defects thereof, and has better cost performance and competitive advantage. The invention also provides a preparation method of the polyoxyethylene ether monomer and the application thereof in the synthesis of the water reducing agent.

The invention relates to a primacord rolling method and primacord rolling machine, characterized in that passivation explosive material of 90-98% Hexogen(RDX) and 10-2% bonding agent are agglutinating and mixing evenly, and is cased into a one-end sealed soft blank pipe, to form granular structure with stacking density of 0.6-1.0 g/cm3. Then blank pipe opening is sealed, and the pipe is put into a cannelure matched with the desired pipe rolling diameter between a pair of roller flanges of the primacord rolling machine. The blank pipe is continuously passing multiple roller pairs of which the diameter is gradually decreased, and the decrease ratio of the diameter of blank pipe is less than 50%, until achieve the design requirement of the primacord product diameter. The length of primacord rolled by this method and equipment can be more than 200 metres. High safety can be assured during production process without any environmental pollution. Product quality is stable, and the wire loading density can be flexibly adjusted to meet the desire of different usages, good market competition advantage is provided.

The invention discloses an advanced exhaust recovery system of available energy of diesel waste gas, consisting of a plurality of exhaust pipe units and expansion joints. Each exhaust pipe unit comprises a pipe body (1) and an exhaust branch (3). The pipe diameter of the exhaust branch (3) is tapered. One end of the exhaust branch intersects with the pipe body (1) at a right angle and the other end of the exhaust branch is connected with the vent of an air cylinder. After a plurality of exhaust pipe units are connected, the pipe body (1) of the connected exhaust pipe units constitutes an exhaust collector. One end of the exhaust collector is sealed up and the other end of the exhaust collector is connected with a turbine inlet. The advanced exhaust recovery system has rational structure and simple structure. As the exhaust pipes are connected in series and the vent of each air cylinder is connected with the exhaust pipe unit, exhaust pulse energy can be effectively used. A pulse system can respond quickly, so the diesel has good acceleration performance. When the diesel runs at low speed, as the energy damper loss of waste gas is relatively less, pulse energy can be better used and the diesel ahs better low-speed torque performance.

The present invention relates to a composition for modulating tumor cell dissemination, in particular metastatic cancer cells. In particular, the invention relates to an agent for modulating metastatic tumor cell dissemination for use in the treatment and/or prevention of a metastatic cancer wherein the agent an extracellular matrix (ECM) protein carried on a polycarbonate polyurethane matrix. The invention also relates to a product, comprising an agent for modulating metastatic tumor cell dissemination, and to a method of treatment or prevention of cancer.

The invention relates to a PTFE multilayer extrusion pipe and a preparation method thereof. The preparation method comprises the following steps: respectively preforming an inner-layer green body andan outer-layer green body of the PTFE multi-layer extrusion pipe, then putting the inner-layer green body into the central part of the outer-layer green body, applying certain pressure to form a preformed green body of the PTFE multi-layer extrusion pipe, and extruding, drying and sintering to obtain the PTFE multi-layer extrusion pipe with good wear resistance. The PTFE multi-layer extrusion pipeadopts a two-layer structure, the inner layer is a modified PTFE wear-resistant layer with one or a mixture of two of thermoplastic resin PPS, PES, PAI, PI and PEEK with good wear resistance, and theouter layer is a pure PTFE layer so that the performance of the PTFE of the outer layer is not influenced, the wear resistance of the inner layer is improved and the manufacturing cost is reduced. The manufacturing process is simple, repeatability is good, performance is stable, and the problem that a pure PTFE extrusion pipe is poor in wear resistance is solved.

The invention discloses a foamed lithium-enriched manganese-based layered oxide and a low-temperature fused salt preparation method and belongs to the technical field of lithium battery material preparation. The foamed lithium-enriched manganese-based layered oxide has a foamed structure and has structural features of 'twin domain' and one of the structural features of the 'twin domain' is a monoclinal Li2MnO3-like layered structure domain, the rest is diamond LiTMO2, TM is transition metal, at least three transition metals are included, and one of the transition metals is Mn. The foamed- lithium-enriched manganese-based layered oxide is prepared by sintering mixed lithium salt and a lithium-enriched material precursor. Capacity of a lithium ion battery assembled by an electrode material prepared from active substance obtained by the method can reach 300mAh/g, and the lithium ion battery has high coulombic efficiency and circulating stability, has high first-circle coulombic efficiency at 55 DEG C and is higher than lithium ion batteries assembled by a lithium-enriched material obtained by sintering lithium salt in capacity and circulating stability.

The present invention discloses a preparation method of a polycarboxylate superplasticizer with carbon dioxide, comprising the following steps: (1) preparing a polycarboxylate superplasticizer prepolymer: performing an oxidation-reduction radical polymerization of an unsaturated macromonomer, an unsaturated phenol derivative, a reducing agent, an initiator and a chain transfer agent with different proportions under a nitrogen atmosphere to obtain a novel polycarboxylate superplasticizer prepolymer with different molecular weight; adjusting the pH by adding an alkali; (2) preparing a polycarboxylate superplasticizer: performing a Koble-Schmitt reaction between the polycarboxylate superplasticizer prepolymer and a carbon dioxide for a certain time to obtain the polycarboxylate superplasticizer. The polycarboxylate superplasticizer prepared by the method of the present invention retains the advantages of the existing water-reducing admixture of the polyether monomer compounds, and the production process is simple, safe, controllable, less side effect and has a better cost effective and competitive advantage.

The invention belongs to the field of organic synthesis and particularly relates to a preparation method of SYP-14288. The method includes the steps of: adding a reaction solvent A to 2,6-dichloro-3,5-dinitrotoluene, adding dropwisely ammonia water or feeding ammonia gas to the solution at from 0 DEG C to reflux temperature of the solvent A, continuously performing the reaction for 1-10 h, and removing the solvent after the reaction is finished to obtain an intermediate substituted ammoniated substance; performing a reaction to the substituted ammoniated substance, 3,5-dichloro-4-fluoronitrobenzene, an alkali and a reaction solvent B for 1-20 h at from room temperature to reflux condition of the solvent B; and removing the solvent after the reaction is finished, performing post-treatment to obtain a crude product, and re-crystallizing the crude product to obtain the product, SYP-14288. The product SYP-14288 is high in purity and yield. The method employs easy-to-obtained raw materials, has simple operations and mild reaction conditions, and is suitable for industrial production.

The invention discloses a fatigue driving monitoring method based on an acceleration sensor. The fatigue driving monitoring method comprises the following steps: S1, obtaining acceleration informationof an automobile through the acceleration sensor; S2, generating driving state information of the automobile according to the acceleration information; S3, controlling the working mode of a monitoring module according to the driving state information of the automobile; and S4, judging whether the driver is in a fatigue state or not according to the monitored information. According to the invention, specific requirements of a CAN bus on a communication protocol are overcome; and the defects that the GPS is weak in signal in a specific area (such as a tunnel) and cannot continuously and stablywork are overcome. Meanwhile, the cost of the scheme is not high; the product manufactured by using the scheme has better competitive advantages.