142results about How to "Expensive to solve" patented technology

The invention relates to a magnetic particle direct chemiluminiscence microfluidic chip for whole blood sample testing. The chip is composed of a top adhesive tape (10), a chip substrate (1) and a bottom adhesive tape (13); the chip substrate comprises a filtering area (2), a coating area (3), a cleaning area (4), a testing area (5), a cleaning liquid storing pool (7), a luminescence substrate liquid storing pool (8) and a waste liquid pool (11), wherein the testing area is connected with the cleaning liquid storing pool and the luminescence substrate liquid storing pool through liquid releasing channels (9) respectively; the top adhesive tape comprises a sample feeding opening (11) and a cleaning liquid storing pool demising hole (12).

The invention discloses a modified manganese dioxide catalyst, a modified manganese dioxide catalyst electrode and a preparation method of and the modified manganese dioxide catalyst and the modified manganese dioxide catalyst electrode. The manganese dioxide catalyst is prepared through an impregnation method, and is formed by fluorine ions and metal ions doped nano-manganese oxide is loaded on a metallic oxide carrier with a rutile crystal structure and an oxygen-deficiency structure simultaneously; a corrosion-resistant conductive layer formed by the metallic oxide with the rutile crystal structure and the oxygen-deficiency structure and a modified manganese dioxide catalyst layer formed by the fluorine ions and metal ions doped nano-manganese oxide are sequentially prepared on a conductive base body to prepare the modified manganese dioxide catalyst electrode; the modified manganese dioxide catalyst and the modified manganese dioxide catalyst electrode have the characteristics of high current efficiency and long service life; and besides, the preparation method can be operated simply, the cost is low and the industrial production requirement is met.

The invention relates to a method for detecting pre-treatment of nitrofurans metabolite, comprising the following steps: (1) choosing a sample; (2) uniformly mixing the sample and extractant to obtain supernate; (3) adding the extractant to carry out extraction once again and obtaining mixed extractant; (4) adding derivatization reagent and catalyst to the mixed extractant and uniformly mixing the mixture; (5) cooling the mixture to room temperature; (6) adjusting the mixed extractant to neutrality and adding ethyl acetate to carry out extraction; (7) repeating the operation and combining ethyl acetate layers; (8) carrying out rotary evaporation on the mixture to be dry and adding methanol solution to dissolve residue; (9) activating a purification pillar to cause the methanol solution to pass through the purification pillar and obtaining and drying eluent; (10) adding acetonitrile aqueous solution and isooctane to the residue, dissolving and obtaining lower acetonitrile water layer; (11) causing the acetonitrile water layer to pass through a microfiltration membrane; and (12) analyzing and measuring the components and contents of the nitrofurans metabolite. The method of the invention is accurate, reliable and highly sensitive and enjoys good technical effect.

The invention relates to dialyzing paper winding equipment which comprises a bottom plate. Two mounting supports are arranged on the right side of the bottom plate; the two mounting supports are connected with the bottom plate; two transmission mechanisms are mounted between the two mounting supports; the transmission mechanisms comprise driven rotary drums and driving rotary drums, and the driven rotary drums are connected with the driving rotary drums by conveyor belts; two V-shaped belt pulleys are respectively mounted at the front ends of the two driving rotary drums; the two V-shaped belt pulleys connected with each other by a V belt; a support plate is welded on the right side of the bottom plate; a first driving motor is mounted on the support plate; the first driving motor is connected with the driving rotary drums; a first fixing plate is welded on the bottom plate; two V-shaped tension mechanisms are symmetrically welded on the first fixing plate; each V-shaped tension mechanism comprises three tension shafts; a double-winding device is welded on the left side of the upper end surface of the bottom plate. The dialyzing paper winding equipment has a bidirectional dialyzing paper winding function on the premise of low cost, and has the advantages of low cost, easiness and convenience in operation, high work efficiency, wide application range and the like.

The invention provides a nested type three-phase mixing nozzle of water, oil and gas. The nested type three-phase mixing nozzle comprises a nozzle body, a nesting ring and a mixing chamber, and is characterized in that the nozzle body comprises a head portion, a middle portion and a bottom, the head portion of the nozzle body is a cone, and a spray hole is formed in the top end of the head portion of the nozzle body; the middle portion of the nozzle body is a cylinder, and at least two gas holes are evenly formed in the cylinder; the bottom of the nozzle body is of a thread structure; the nesting ring and the middle portion of the nozzle body are matched to form a clearance structure; an inner chamber with the top of a cone is arranged inside the nozzle body; the mixing chamber is arranged in the inner chamber and corresponds to the position of the middle portion of the nozzle body; a fluid channel communicated with the spray hole is further formed in the top of the inner chamber. The nozzle is arranged in a metal processing lubricating device, point lubricating is achieved, the problem that gas consumption is large in existing novel metal near-dry type processing lubricating is solved, meanwhile, a power source is saved, and the advantages of saving lubricating oil and being more environmentally friendly are achieved.

The invention provides an antitheft device based on wireless signals. The antitheft device comprises a first communication module used for receiving access request information of a mobile terminal; a control module used for processing access request information and controlling other modules, wherein the control module comprises an analysis module and a signal processing module, the analysis module is used for obtaining mobile terminal identification information included in the access request information and determining whether the mobile terminal identification information is preset safety identification, and the signal processing module is used for determining whether information intensity of the access request information of the mobile terminal is greater than a preset signal intensity threshold; and a second communication used for, when the mobile terminal identification information is not the preset safety identification and the signal intensity of the access request information is greater than a preset signal intensity threshold, emitting alarm information. The antitheft device is simple and practical, the problems of complexity and high price of a conventional antitheft system are solved, and the antitheft device provided by the invention is more suitable for a common family.

The invention provides a passive mode-locked pulsed laser which simultaneously outputs two or more optical pulses with different wavelength. Under the condition that an optical resonant cavity does not contain an optical filter with two or more transmittance peaks in the gain spectrum of a gain medium, the laser ensures two or more gain peaks of the gain medium to simultaneously have maximum and equal gains by reasonably controlling the loss in the optical resonant cavity and further simultaneously outputs two or more optical pulses with different center wavelength.

The invention relates to a double-winding device for a dialyzing paper winding device. The double-winding device comprises a base plate. A fixing plate is welded to the base plate. Two winding branched chains are installed on the upper side and the lower side of the fixing plate through bearings. The winding branched chains comprise step shafts, installing sleeves are arranged on the outer sides of the middles of the step shafts, two sides of the step shafts are sleeved with two limiting shaft barrels respectively, and the upper end and the lower end of each limiting shaft barrel are connected with an upper strip-shaped groove and a lower strip-shaped groove of the corresponding step shaft through two limiting screws respectively. A supporting disc is arranged on the two step shafts through bearings respectively. Two transmission gears are arranged at the tail ends of the two step shafts through keys respectively. An idle pulley is meshed between the two transmission gears and installed on a fixing shaft through a ball bearing. The fixing shaft is welded to the middle of the supporting disc. A drive motor is installed at the left ends of the step shafts through a coupler. The two-direction winding function of dialyzing paper can be achieved on the premise that cost is low, and the double-winding device has the advantages of being low in cost, easy and convenient to operate, high in working efficiency, wide in application range and the like.

The invention relates to an alloy surface casting method, in particular to a method for casting a surface layer by using TiAlC-base ceramic powder as metal and titanium alloy. TiAlC-base metal ceramic power or ceramic block is made from Ti2AlC, Ti3AlC2 and TiC1-x. The method includes: weighing materials according to the proportion, and performing ball milling, drying, tabletting and sintering to obtain Ti3AlC2 block material; cutting and grinding the Ti3AlC2 block material into grains, adhering the grains into a compound-base shell by zirconium acetate as binder; performing shell test, melting Ti alloy in a calcia crucible in a vacuum induction heating furnace, and vacuuming the furnace and filling argon during melting. The yttrium oxide can be replaced with the TiAlC-base ceramic powder used in method, so that production cost is lowered. The problems that alloy surface molding material for precision investment casting is expensive and production process is complex are solved.

The invention provides an oil-water-gas three-phase mixing nozzle which is characterized by comprising a nozzle body and a nesting ring, wherein the nozzle body comprises a head part, a middle part and a bottom part; the head part of the nozzle body is a cone, a jet hole is formed in the top end of the cone, and at least two water spray holes are uniformly distributed in the cone; the middle part of the nozzle body is a cylinder, and at least two gas holes are uniformly formed in the cylinder; the bottom part of the nozzle body is of a thread structure; the nesting ring and the middle part of the nozzle body form a clearance structure in a matching manner. The oil-water-gas three-phase mixing nozzle is simple in design and is suitable for a variety of oils and used in trace lubrication devices for metal processing.

The invention provides a large-area high-efficiency carbon fiber coating process. The large-area high-efficiency carbon fiber coating process is characterized by including the following steps that thesurface of a to-be-coated part is evenly coated with a layer of carbon fiber dipping glue and curing agent; carbon fiber prepreg is laid on the surface of the part according to needed thickness; thecarbon fiber prepreg is covered with an isolation film; a layer of release agent is smeared on an aluminum alloy mold, and the aluminum alloy mold is press-fit on the surface of the to-be-coated part;the part is put in heating equipment to be heated; after the carbon fiber prepreg is completely cured into a carbon fiber finished product, the mold is separated from the carbon fiber finished product, and the isolation film on the surface is removed; the cured carbon fiber surface is subjected to quality testing; and then a layer of carbon fiber surface glue is smeared on the carbon fiber surface. The process can be used for carbon fiber coating of the surfaces of multiple materials such as metal, engineering plastic, ceramic and foamed plastic, the coated carbon fiber surface is high in evenness, the process is especially suitable for the surfaces of parts of unmanned aerial vehicles and automobiles, and the impact resistance of the unmanned aerial vehicles and the automobiles is improved.

The invention provides an AlN single crystal substrate production apparatus and an application method thereof. The main body of the AlN single crystal substrate production apparatus is a high temperature resistant crucible and the crucible is divided into two parts, namely a crystal growth chamber and a raw material chamber. A gas pipe of ammonia gas or nitrogen gas or mixed ammonia gas and nitrogen gas is arranged on the sidewall of the crystal growth chamber, and a gas outlet is formed in a position opposite to the gas pipe; a substrate is fixed on the top of the reaction chamber; a carrier gas pipe is arranged at the bottom of the raw material chamber; raw materials are placed at the bottom of the raw material chamber; and the growth chamber is separated from the raw material chamber by a perforated separator. The crucible can be heated by heaters around the crucible, or directly heated by use of the crucible. According to the AlN single crystal substrate production apparatus, a large-size cheap sapphire substrate is taken as seed crystal for AlN crystal growth and the problem of expensive seed crystal of the PVT apparatus is solved; and besides, compared with halide vapor phase epitaxy (HVPE) equipment, the growth temperature of the AlN single crystal substrate production apparatus is higher and closer to the balance growth temperature of the AlN crystal, and therefore, the grown crystal is higher in quality.

The invention discloses a classification-model building method and device. The classification-model building method comprises the following steps: building a standard data set of the regulation-control relation between each pair of proteins; in the standard data set, acquiring a plurality of function annotation items contained by the pair of proteins; classifying the standard data sets according to an activation regulation-control relation and/or an inhibition regulation-control relation: respectively performing concentration significance analysis to the function annotation items in all classes, and building a classification model according to the analysis results. According to the technical scheme provided by the invention, the cost in researching the regulation-control relations between the pairs of proteins is reduced, and the accuracy of the researching result is improved.

The invention discloses a shop quality evaluation method and device. The shop quality evaluation method comprises the steps that shop features of multiple preset shop dimensions are extracted from a shop database; aiming at each preset shop dimension, a plurality of shops are sorted according to the shop features, and a shop sorting result corresponding to each preset shop dimension is obtained; according to the shop sorting result corresponding to each preset shop dimension, first shop positive samples and first shop negative samples are selected as a first training sample set; according to the shop features of the multiple preset shop dimensions of all the first shop samples in the first training sample set and calibration data of all the first shop samples, a shop quality evaluation model is trained; and the shop quality of the to-be-evaluated shops is determined through the trained shop quality evaluation model. The accuracy of shop quality evaluation is improved, the credibility of the shop quality is further enhanced, and the high cost generated by manual labeling is avoided.

The invention relates to a polarizer and a manufacturing method thereof. Acrylic resin serves as a protective film of a polyvinyl alcohol polarizing film to be combined into the polarizer, wherein the acrylic resin has the glass transition temperature of higher than 50 DEG C. Because cheap acrylic resin is used for replacing the conventional expensive protective film material, namely cellulose triacetate and/or cycloolefine polymer; and by utilizing the hot melt adhesive property of the acrylic resin, the acrylic resin protective film and the polyvinyl alcohol polarizing film can be combined through hot pressing only, and the step of coating hydrogel between the acrylic resin protective film and the polyvinyl alcohol polarizing film can be saved. Therefore, due to the implementation mode, the manufacturing cost of the polarizer can be greatly saved, and the manufacture procedure of the polarizer can be simplified.

The embodiment of the invention provides a preparation process of a titanium and titanium alloy thick plate. According to the preparation technology, a plate blank is pretreated, and technological parameters in the rolling process are controlled; production of titanium and titanium alloy thick plates can be realized by utilizing the existing equipment of a steel mill; equipment does not need to bereconstructed; the problems of equipment limitation and high investment of large-opening hot rolling equipment in the current titanium industry are solved; the preparation process of the titanium andtitanium alloy thick plate provided by the embodiment of the invention is a one-fire forming process; a process for preparing titanium and titanium alloy thick plates by forging in the prior art canbe replaced; the thickness of the prepared titanium and titanium alloy thick plate can reach 350-500 mm, the width of the prepared titanium and titanium alloy thick plate can reach 1400-2000 mm, the plate shape is good, the thickness precision is high, the same plate difference can be controlled within +/-1%, the thickness hit rate exceeds 99%, the straightness of the offline plate is smaller than5 mm/m, and the surface of the plate is smooth and in dark gray.

The invention provides a smart camera network system and dynamic task allocation method. The smart camera network system comprises a smart camera network which monitors intersection information, a management center which stores the operating state and analysis results of the smart camera network, and a remote configuration system which configures the node parameters and operating states of the smart camera network. When detecting a required target for the first time, a camera node establishes an active tracking task, and transmits a tracking task message in a multicast form; when receiving the tracking task message, a camera node establishes a passive tracking task; and when the tracked target enters the visual threshold range of a next camera node from the visual threshold range of a last camera node, the last camera node terminates the active tracking task, and the next camera node converts the passive tracking task of the tracked target into an active tracking task. With the smart camera network system and dynamic task allocation method of the invention adopted, multicast communication can be realized, and the problem of high cost of broadcast communication can be solved. The smart camera network system and dynamic task allocation method have the advantages of high tracking quality and excellent expansibility.

The process of reducing hematite or limonite without magnetic phase directly into iron powder without roasting has low power consumption and no pollution. The direct reducing process includes the following steps: crushing iron ore; water washing in a spiral separator to eliminate mud; mixing with proper amount of low sulfur coke powder, lime, Q-type catalyst and dolomite to form mixture material; crushing, adding water through stirring and making adobe with pore in an adobe making machine; filling the adobe inside earth jar and sealing with anthracite; roasting in tunnel kiln; grinding the roasted adobe in a ball mill and separating iron powder in magnetic separator.

The invention relates to a method for manufacturing thin-wall guard rings for large-sized high-speed motors. The method for manufacturing guard rings comprises the steps of refining billet steel and performing hot-forging billet manufacture, solid-solution heat treatment, cold deformation and rough machining, wherein the solid-solution heat treatment and the cold deformation comprise the following steps: a steel ingot after hot-forging molding is sent into a furnace, heated to be between 950 and 1,100 DEG C and thermally insulated to ensure that carbide is subjected to sufficient solid solution so as to obtain a uniform austenite structure; the austenite structure is rapidly subjected to water cooling till the austenite structure does not look red; and then the austenite structure is taken out from water and subjected to semihot-forging deformation. Due to the technical solution, the problem that the thin-wall guard rings for the large-sized high-speed motors are expensive in manufacturing material, complex in manufacturing method and high in manufacturing cost is completely solved, and the manufacture of the guard rings no longer needs special corollary equipment or expensive material. The manufacturing method has the advantages of effectively saving nickel resources and remarkably reducing cost for manufacturing the guard rings, along with simplicity and convenience. In addition, the guard rings manufactured by the method are high in plasticity and reliable in quality.

The invention discloses a polycrystalline silicon bar crushing device and system. According to the polycrystalline silicon bar crushing device and system, a polycrystalline silicon bar is electromagnetically heated, the heated polycrystalline silicon bar is rapidly cooled, accordingly, stress is generated in the polycrystalline silicon bar, and the polycrystalline silicon bar is crushed. Comparedwith the prior art, the scheme solves the problems that due to existing mechanical crushing, impurity pollution is caused, the radiation heating speed is low, and energy consumption is high, the production efficiency is improved, and energy consumption is reduced.

The invention discloses a map loading device. The map loading device comprises an acquiring module, a downloading module, an extracting module and a loading module; the acquiring module is used for acquiring touch parameters corresponding to a double-finger touch operation when the double-finger touch operation on a current map display interface of a mobile terminal is detected; the downloading module is used for determining a first map area of map data to be downloaded according to the acquired touch parameters and downloading the map data corresponding to the first map area; the extracting module is used for determining a second map area of a map to be loaded according to a determination instruction when the determination instruction of loading the map is received and extracting out map data corresponding to the second map area from the downloaded map data; the loading module is used for loading the map corresponding to the second map area according to the extracted map data corresponding to the second map area. The invention further discloses a map loading method. Accordingly, the flow consumed when the map is loaded is reduced.

This invention relates to data transmission network and to one ATM network structure and its data transmission method. This invention provides one ATM ring network, which divides ATM ring network points into upper and down types and when upper points are connected to core device as management points in charge for maintenance topological and dispatching materials as ring data terminal points connected to other device.

The invention discloses a manufacturing process for a copper-nickel compensating conductor alloy wire, and relates to the technical field of alloy wire processing. The manufacturing process includes the steps of main material selection, ingot casting refining, forging and hot rolling, cold wire drawing, heat treatment, finished product inspection and storage. The manufacturing process has the beneficial effects that the method that reasonable processing equipment is supplemented by corresponding process parameter selection for processing and preparing the copper-nickel alloy wire is determined, the measureable temperature interval of the prepared copper-nickel alloy wire is 0-100 DEG C, a nickel-chromium or nickel-silicon alloy wire on the market can be effectively replaced, manufacturing cost is low, measuring is accurate, stability performance is high, the problem that the alloy wire is high in manufacturing cost in the prior art is effectively solved, and application and popularization are facilitated.

The invention provides a manufacturing method of a solar battery module. The method comprises the following steps: stacking a backboard, a solar battery sheet and photovoltaic glass together to form a stack assembly; (2) sealing internal space of the stack assembly; (3) carrying out vacuum-pumping on the sealed internal space of the stack assembly; (4) injecting optical cement into the internal space of the stack assembly after vacuum-pumping processing; and (5) after filling out the internal space of the stack assembly with the optical cement, sealing the internal space. Correspondingly, the invention provides a solar battery module prepared by employing the above method. The manufacturing method of the invention is simple in technology, operation time can be substantially shortened, and product yield is high.

The invention relates to a formfeed coding feedback circuit. A first simulating signal and a second simulating signal which are detected and output by a light sensor are received. The formfeed coding feedback circuit comprises: a digital control circuit for generating a plurality of digital counting signals; a comparison circuit used for comparing the first simulating signal and the second simulating signal respectively with corresponding a third simulating signal and a fourth simulating signal. When compared results are not same, the digital control circuit generates a second digital counting signal to be transferred to a digital simulating conversion circuit for the subsequent comparison. When the compared results are the same, the digital control circuit obtains the position and the moving distance of an optical scale according to the corresponding signal counting signal.

The invention discloses a stair closeness centrality determination method and system. The method comprises the following steps of: constructing a data map of a target database; forming a residual nodeset by all the nodes in the data map; calculating distances between all the node pairs in the residual node set, and calculating closeness centralities of all the nodes through the distances and weight functions; selecting a node with the maximum closeness centrality from the residual node set, deleting the selected node from the residual node set, and deleting edges associated with the selectednode from the data map so as to generate a new sub-map, wherein a stair closeness centrality of the selected node is closeness centrality calculated in the current sub-map; and judging whether the residual node set after the deletion is empty or not, and if the judging result is negative, repeating above steps to continue the calculation until the residual node set is empty, wherein stair closeness centralities of all the nodes are calculated. According to the method and system, stair closeness centrality indexes have better locality and anti-jamming capability.