51results about How to "Reduced feasibility" patented technology

Disclosed herein is a liquid crystal display device. The liquid crystal display device includes: a first substrate; a second substrate; a liquid crystal layer; a first electrode part; and a second electrode part. The first electrode part includes a pixel electrode formed in the pixel area and a peripheral electrode formed in the peripheral area. The second electrode part includes a pixel electrode part formed in the pixel area and a peripheral electrode formed in the peripheral area. The peripheral electrode of at least one of the first electrode part and the second electrode part is formed by a plurality of electrodes adjacent to each other. Voltage values of driving voltages applied to the respective electrodes adjacent to each other of the peripheral electrode are different from each other.

A method and system is disclosed for validating honesty of a student taking an online test. A camera is used to detect and monitor the test taker's eye movements and eye gaze positions during the taking of the test to ensure the test taker is looking only at the computer display showing the questions and answer choices to the test taker. A microphone is incorporated into, placed on, or in the vicinity of the computer display and the system compares audio received to recorded voice of the test taker to detect another voice. Other voices and eye movement beyond the display screen may be flagged as indicative of dishonest test taking.

Provided is a lithium mixed transition metal oxide having a composition represented by Formula I of LixMyO2 (M, x and y are as defined in the specification), wherein lithium ions intercalate into and deintercalate from mixed transition metal oxide layers (''MO layers'') and some of MO layer-derived Ni ions are inserted into intercalation / deintercalation layers of lithium ions (''reversible lithium layers'') thereby resulting in the interconnection between the MO layers. The lithium mixed transition metal oxide of the present invention has a stable layered structure and therefore exhibits improved stability of the crystal structure upon charge / discharge. In addition, a battery comprising such a cathode active material can exhibit a high capacity and a high cycle stability. Further, such a lithium mixed transition metal oxide is substantially free of water-soluble bases, and thereby can provide excellent storage stability, decreased gas evolution and consequently superior high-temperature stability with the feasibility of low-cost mass production.

The invention discloses an automatic test method for a directional diagram of a short-wave large-scale antenna array. The method includes the following steps: (1) 2D<2> / Lambda is used as a minimum test distance, wherein R is a distance between a to-be-tested antenna and a signal source, D is a maximum aperture of the antenna array and Lambda is a work wavelength; a test track is concentric circles which rise gradually with radiuses being reduced gradually; (2) test field intensity data and space GPS orientation data are combined and interferences and noise signals are removed and then through an algorithm, an overall directional diagram is calculated in an inversion manner. In the automatic test method, the whole system adopts a radio communication means to carry out whole-journey remote control on a test process so that test efficiency is improved and a function which cannot be achieved by the prior manual tests is realized; and at the same time, intervention of an automation device reduces errors caused by the manual tests and the accuracy and precision are improved.

Grooved metal tubes (1), of outer diameter De, the tubes being grooved internally with N helical ribs (2) of an apex angle α, height H, base width LN and helical angle β, two consecutive ribs being separated by a flat-bottomed groove (3) of width LR, with a pitch P equal to LR+LN. These tubes are characterised in that,a) De is between 4 and 20 mm,b) the number N of ribs ranges from 46 to 98,c) the rib height H ranges from 0.18 mm to 0.40 mm,d) the apex angle α ranges from 15° to 30°,e) the helical angle β ranges from 18° to 35°. These tubes make it possible to simultaneously obtain a high heat exchange coefficient in evaporation and condensation and a low pressure loss.

Disclosed herein is a liquid crystal display device. The liquid crystal display device includes: a first substrate; a second substrate; a liquid crystal layer; a first electrode part; and a second electrode part. The first electrode part includes a pixel electrode formed in the pixel area and a peripheral electrode formed in the peripheral area. The second electrode part includes a pixel electrode part formed in the pixel area and a peripheral electrode formed in the peripheral area. The peripheral electrode of at least one of the first electrode part and the second electrode part is formed by a plurality of electrodes adjacent to each other. Voltage values of driving voltages applied to the respective electrodes adjacent to each other of the peripheral electrode are different from each other.

The invention discloses a single-wavelength 100G light module. The module includes a light emitting unit and a light receiving unit. The light emitting unit receives a 100G / s-rate NRZ electrical signal, encodes and converts the 100G / s-rate NRZ electrical signal into a 50G / s-rate four-level electrical signal, and converts the 50G / s-rate four-level electrical signal into a 50G / s-rate PAG4 (Pulse Amplitude Modulation) light signal for emitting; and the light receiving unit receives the 50M / s-rate PAM4 light signal, converts the 50G / s-rate PAM4 light signal into a 50G / s-rate four-level electricalsignal, and decodes and converts the 50G / s-rate four-level electrical signal into a 100G / s-rate NRZ electrical signal for output. The single-wavelength 100G light module of the invention can support single-path 100Gb / s-rate transmission service, reduce use quantity of light devices, reduce costs of the light module, and be completely compatible with existing 100G switch interfaces at the same time.

The invention relates to a fixing device used for fixing the back skin of an experimental animal. The fixing device used for fixing the back skin of the experimental animal comprises a base and fixing tables, wherein each fixing table comprises a connecting part and a fixing and clamping part connected with the connecting part, the fixing tables are connected with the base in a detachable mode through the connecting parts, the fixing and clamping parts of the two fixing tables are matched to form a fixing through hole allowing the experimental animal to pass through, and the end faces, away from the connecting parts, of the two fixing and clamping parts are matched to clamp the back skin of the experimental animal so that the back skin which is pulled up of the experimental animal can be spread on the outer walls of the fixing and clamping parts. The fixing device used for fixing the back skin of the experimental animal has the advantages that the back skin of the experimental animal can be fixed, negative influence of respiratory movement of the experimental animal on imaging is effectively avoided, damage to the experimental animal is small due to the fact the non-invasive fixing method is adopted, and long-time and stable observation and study of a subcutaneous transplantation tumor model on the back of the experimental animal by means of a photoacoustic imaging system is available.

The invention particularly relates to a waste sand regeneration method reducing regeneration sand acid consumption value, and belongs to the field of environmental protection. The purpose is to provide the waste sand regeneration method capable of being simple and convenient in operation, low in cost, and effectively reducing the regeneration sand acid consumption value. The waste sand regeneration method by reducing the regeneration sand acid consumption value comprises the following steps of crushing the waste sand; roasting; carrying out wet-process stirring regeneration; grinding; and winnowing magnetic separation.According to the waste sand regeneration method by reducing the regeneration sand acid consumption value, the problems that the regeneration sand acid consumption value is unstable and high are solved, the regeneration rate is high, the quality of the regeneration sand is good, and the cost of the regeneration sand is low; and meanwhile, the regeneration sand is energy-saving and environment-friendly in the regeneration process, good economic benefits are achieved, and considerable economic benefits can be brought to the casting enterprises.

The disclosed process consists in filling the gap between a billet and the wall of a sectional mould with a molten slag in at least two stages. When the first portion is poured in, the gaps between the sections of the mould are filled. Once the slag in the gaps is solidified completely, voltage is supplied and the second and next portions of the slag are added. The creation of an electromagnetic field inside the mould takes place following the starting of the cladding process. The liquid metal is then added for the cladding process, which is carried out by means of the stable rotation of the slag and metal. The process can be carried out with varying levels of slag inside the current-carrying part of the mould. The billet can be preheated at the short-circuiting conditions prior to the cladding process.

The invention provides a novel external insulating anti-pollution flashover spraying composite material of an electric transmission line and belongs to the technical field of coating compositions. Thenovel external insulating anti-pollution flashover spraying composite material is prepared from the following raw materials in parts by weight: 30-40 parts of silicone rubber, 20-30 parts of fluorosilicone modified epoxy resin, 10-20 parts of an aluminate coupling agent, 2-7 parts of nano silicon dioxide, 1-5 parts of diatomite, 5-10 parts of calcium carbonate, 0.01-0.06 part of tributyl phosphate, 2-7 parts of ethyl acetate, 2-7 parts of a phosphate modified acrylic emulsion, 0.1-0.5 part of a dispersant, 0.001-0.004 part of a surfactant, 0.2-0.8 part of a curing agent and 30-50 parts of propylene glycol methyl ether acetate. The average static contact angle of the obtained composite coating is greater than or equal to 152 degrees, and the minimum static contact angle is greater than orequal to 145 degrees. The coating is excellent in mechanical property and self-cleaning performance, and is suitable for external insulating anti-pollution flashover of the electric transmission line.

The invention discloses a preparation method of low-temperature quick-soluble agar. The method comprises the following steps: 1, mixing agar powder with water to obtain a mixture, and heating at high temperature until the mixture is completely dissolved to form an agar solution; 2, carrying out ultrasonic treatment of the agar solution; 3, adding cosolvent into the solution obtained in the step 2, fully dissolving and evenly stirring; 4, carrying out high pressure homogenization treatment of the solution obtained in the step 3; 5, carrying out granulation treatment of the solution obtained in the step 4; and 6, sieving to prepare the low-temperature quick-soluble agar. Under the premise of reducing a melting point of the low-temperature quick-soluble agar, the low-temperature quick-soluble agar has relatively strong gel strength.

The invention provides a commodity information management system and method based on a two-dimensional code and a self-dissolving system, and relates to the technical field of commodity information management methods. The method comprises the steps: the initializing of commodity information; the reading of commodity information; the dissolving of commodity information; and the unblocking of the self-dissolving commodity information. According to the invention, a commodity certificate which can be inquired is provided, and a dealer and a consumer can obtain the detailed commodity information through the commodity certificate, so as to discern the false from the genuine. Moreover, the commodity certificate cannot be faked or used repeatedly, thereby preventing a counterfeit and shoddy product from using a true package.

The invention provides a prefabricated stiffness concrete shear wall plate with steel beam connecting keys, an assembled stiffness concrete shear wall and a manufacturing method. An edge restraint component is arranged on the prefabricated stiffness concrete shear wall plate; an upper connecting steel beam is welded and connected with the top ends of two edge profile steel, upper steel beam connecting keys are welded and connected to the two ends of the upper connecting steel beam, a lower connecting steel beam is welded and connected with the bottom ends of the two edge profile steel, and lower steel beam connecting keys are welded and connected to the two ends of the lower connecting steel beam; bolt holes are correspondingly formed in the upper steel beam connecting keys and the lower steel beam connecting keys; and built-in anchor bolts are embedded in the concrete around a wall. The invention provides an assembled stiffness concrete structure shear wall structure with the steel beam connecting keys and a connection mode of the wall, the rigidity of the wall is large, the lateral resistance is high, the assembly form of joints is simple, the cost is low, operation is convenientand fast, feasibility is good, the precision requirement is low, connection is reliable, stress is clear, the shear force between shear walls can be well transmitted, and the prefabricated stiffnessconcrete shear wall plate can be widely used in the assembly of high-rise buildings.

The invention discloses an identity authentication method fusing user multi-source sound production characteristics, a storage medium and equipment. The method comprises the following steps: constructing a sensing terminal; designing a transceiving protection mechanism, adding dynamic random noise during signal transmission in a label communication process of an RFID reader-writer and the sensingterminal, eliminating the noise and recovering a label EPC during signal receiving, and judging whether a sensing signal is true or false; identifying a user voice command, and if the user voice command contains a keyword, determining to enter a next step or reject the request and end according to whether the sensing terminal tag EPC can be correctly recovered; performing noise reduction and voiced part detection on the voice signal, converting the voice signal into a time-frequency spectrogram, extracting radio frequency signal phase information and preprocessing the radio frequency signal phase information; and simultaneously inputting the processed voice and radio frequency sensing data into a neural network through two branches, and carrying out user identity authentication. Based on the realization of voice and radio frequency technologies, the system can be ensured to be safe and credible, and relatively high application value, social significance and development potential are achieved.

A method and system is disclosed for validating honesty of a student taking an online test. A camera is used to detect and monitor the test taker's eye movements and eye gaze positions during the taking of the test to ensure the test taker is looking only at the computer display showing the questions and answer choices to the test taker. A microphone is incorporated into, placed on, or in the vicinity of the computer display and the system compares audio received to recorded voice of the test taker to detect another voice. Other voices and eye movement beyond the display screen may be flagged as indicative of dishonest test taking.

The invention discloses a preparation method of high-carbon metallized pellets for electric arc furnace smelting. The preparation method comprises the steps that carbon-containing powder is added intoiron concentrate for material preparation according to the mass ratio of carbon to iron of 1.5-2:1, prereduction is carried out at a reduction temperature of 1000-1300 DEG C for 40-60min, the reduction product is ground to 0.4-0.5 mm granularity, 4-6% of a binding agent and 9-12% of water are added, the mixture is mixed evenly, pressed into pellets and dried at the temperature of 120-140 DEG C for 60-90min, the high-carbon metallized pellets are obtained, and the pellets can reach the falling strength of 3-4 and reach the density of 2.6-3.3g / cm<3>. Molten steel can be stably and efficiently recarburized by the pellets below the slag-steel interface, the problems that the density of conventional carburant is insufficient, the carburant rapidly floats on the surface of furnace slag after being added, and the carburizing effect is poor are solved, meanwhile, the pellets can perform a good carbon-oxygen reaction below the slag-steel interface to remove inclusions and gas, formation of a large amount of foam slag is promoted, electric arc is stabilized, smelting time is shortened, iron loss is effectively reduced, steel material consumption is remarkably reduced, the metal yield is improved, and the smelting cost is reduced.

The invention discloses an active underground instrument heat management system and method. The active underground instrument heat management system comprises a pressure bearing cavity, a heat preservation cavity, fins, a chip box, a semiconductor chilling plate, a heat conduction copper block and a semi-arc copper shoe, wherein a notch is formed in the position, close to the top, of the heat preservation cavity; the chip box is installed in the notch; the semiconductor chilling plate, the heat conduction copper block and the semi-arc copper shoe are installed inside the chip box in sequence; the cold end of the semiconductor chilling plate is tightly attached to the chip box; the heat end of the semiconductor chilling plate is tightly attached to the heat conduction copper block which is tightly attached to the semi-arc copper shoe; the semi-arc copper shoe is located on the outer surface of the heat preservation cavity; the fins are arranged in the heat preservation cavity; the tops of the fins are fixed outside the chip box; seal end caps are arranged at the two ends of the heat preservation cavity; the heat preservation cavity is formed inside the pressure bearing cavity; and the semi-arc copper shoe is in contact with the inner surface of the stainless steel pressure bearing cavity. By arranging a cooling device inside to protect a normal-temperature electronic component, continuous cooling and heating management on the temperature field inside a logging instrument is achieved, and high-temperature well logging is achieved through a normal-temperature chip.

Systems and methods for controlling access to a vehicle or other object are provided. A vehicle-based authentication unit and mobile access device, e.g., a key fob, that wirelessly communicates with the vehicle-based authentication unit may each include environmental sensor(s) that collect respective environmental data local to the respective device / unit, e.g., GPS data, local temperature data, local barometric pressure data, etc. The mobile access device transmits an access request message (e.g., a response to a challenge from the vehicle-based authentication unit) that includes environmentaldata collected by the onboard sensor(s). The vehicle-based authentication unit receives the access request message and determines whether to grant access to the vehicle based on the environmental data included in the message. For example, the authentication unit may compare the environmental data in the access request message with corresponding environmental data collected by sensor(s) at the vehicle, or with other reference data (e.g., user-specific fingerprint data).

The present invention provided a method for salting-out extraction of acetone and butanol from a fermentation broth, characterized in that one type, or two or more types of salts and one type, or two or more types of extractants are added to an acetone-butanol-ethanol (ABE) fermentation broth, in which the salt saturation achieves 10%˜100%; and the volume ratio of the fermentation broth containing salts to the extractants is 1:0.1˜1:5. The mixture is allowed to stand until phase separation is formed. The top phase is a solvent phase or extraction phase enriched with acetone and butanol whereas the bottom phase is a salt-enriched phase or raffinate phase. This method involves many advantages, such as the simplified operation procedure, accelerated separation process and low separation cost, and therefore becomes a promising method of separating acetone and butanol in industrial application.

The invention relates to the field of genetic engineering medicines, in particular to a novel polyethylene glycol modified recombinant human basic fibroblast growth factor and a preparation method thereof. According to the invention, straight-chain monomethoxy polyethylene glycol aldehyde is adopted to modify the human basic fibroblast growth factor. The modification reaction is carried out in anacidic reaction system under the conditions that the mole number of PEG is excessive, the protein concentration is 2-10 mg / ml and the like, and the reaction mixture is purified through molecular sievechromatography and other steps to obtain a pure product. The polyethylene glycol modified recombinant human basic fibroblast growth factor disclosed by the invention has a wide application prospect in preparation of medicines for promoting wound repair.

The invention discloses a ceramic bonding area surface modification method suitable for ceramic / metal connection. The method comprises the following steps: carrying out magnetron sputtering coating onthe surface of a ceramic component to coat the surface of the ceramic component with a metal coating; using titanium hydride powder for carrying out titanium hydride sintering on the ceramic component plated with the metal coating film on the surface under the vacuum condition, generating a titanium layer on the surface of the metal coating film, and during titanium hydride sintering, filling theceramic component and the periphery with the titanium hydride powder; and after titanium hydride sintering is finished, finishing surface modification of the ceramic bonding area prepared from the ceramic / metal integrated component. By using the method, an alloying transition layer can be formed in the ceramic and metal bonding area, the surface energy of the ceramic bonding area can be remarkably improved, the wettability of the ceramic surface to the metal material is improved, and thus the joint performance and the stability of the ceramic / metal integrated component are improved.

The invention discloses a 3-gear double-clutch automatic gearbox for a motor electromobile. The 3-gear double-clutch automatic gearbox comprises a clutch K1, a clutch K2, a synchronizer, an input shaft, a second shaft parallel to the input shaft, a first-gear gear pair, a second-gear gear pair and a third-gear gear pair. The clutch K1 and the clutch K2 are arranged at the two ends of the input shaft, and the clutch K1 transmits power to the second shaft through the second-gear gear pair. The clutch K2 transmits power to the second shaft through the third-gear gear pair. The first-gear gear pair comprises a first-gear driving gear and a first-gear driven gear engaged with the first-gear driving gear. The first-gear driving gear is fixedly connected to the input shaft, and located between the second-gear gear pair and the third-gear gear pair. The synchronizer is arranged on the second shaft and located between the first-gear gear pair and the second-gear gear pair or the third-gear gearpair, and controls the first-gear driven gear of the first-gear gear pair to be connected with the second shaft. The 3-gear double-clutch automatic gearbox is mainly used for load-carrying vehicles with the load capacity larger than 10 t, meanwhile, the power of a motor is expected to be as small as possible, and therefore the specification and cost of all electrical components of the whole vehicle are reduced.

The invention relates to a task preprocessing method based on imaging quality estimation, which comprises the steps of: firstly calculating a visible time window of a satellite to a ground object according to satellite orbit data, attitude mobility and ground object location information, and removing an invisible time window and tasks in earth shadow areas in the visible time window from a task list; then analyzing and determining influencing factors which influence image quality, constructing an imaging quality determination function and continuously removing tasks which do not satisfy imaging quality requirements from the task list; and for each task remained in the task list, cutting the visible time window corresponding to the tasks to obtain a task execution time window, and at the same time, calculating task observation duration according to the attitude angle of the satellite which points to the vertex of the object at each time point during task execution. When the task observation duration is within the task execution time window, the tasks are executable tasks and all executable tasks are submitted to a satellite task planning system for task planning and scheduling.

Matrices and methods of stabilizing and storing biological samples containing nucleic acids are provided. The present application in particular provides systems and methods for stabilizing RNA and especially viral RNA in raw samples, where the stabilization and storage occur before additional processing, isolation, and analytical steps have taken place.

The invention provides a prefabricated stiffened concrete shear wall panel with a steel beam connecting key, an assembled stiffened concrete shear wall and a manufacturing method. The prefabricated stiffened concrete shear wall panel has edge restraint components; the upper connecting steel beam and The top ends of the two edge profiles are welded and connected with an upper steel beam connecting key, the lower connecting steel beam is welded with the bottom ends of the two edge profiles and the two ends are welded and connected with a lower steel beam connecting key; the upper steel beam connecting key is connected with Bolt holes are correspondingly opened on the connection key of the lower steel beam; built-in anchor bolts are pre-embedded in the concrete around the wall. The invention provides an assembled rigid concrete structure shear wall structure with steel beam connection keys and a connection method of the wall body. The wall body has high rigidity, strong lateral resistance, simple assembly form of joints, and low cost. The operation is convenient, the feasibility is good, the precision is low, the connection is reliable, the force is clear, and the shear force between the shear walls can be well transmitted, and it may be widely used in the assembly of high-rise buildings.

The invention discloses a key geometric error tracing method for a multi-axis numerical control machine tool and belongs to the technical field of machine tool precision analysis. The invention particularly relates to a spatial motion error modeling method of the multi-axis numerical control machine tool based on a multi-body system theory, a machine tool machining precision prediction method based on a side edge milling principle and a key geometric error traceability analysis method. According to the method, a multi-axis numerical control machine tool space motion error model, a machining precision prediction model and a key geometric error traceability analysis model are established. In machine tool precision optimization design truncation, a multi-axis numerical control key geometric error is subjected to traceability analysis, so that a machine tool design engineer can accurately identify the key geometric error conveniently, and the influence weight of each geometric error on the machine tool machining precision can be obtained before machine tool precision optimization design; machine tool precision design is correctly guided, and a theoretical foundation is laid for numerical control machine tool precision optimization design work.

The invention relates to a fixing device used for fixing the back skin of an experimental animal. The fixing device used for fixing the back skin of the experimental animal comprises a base and fixing tables, wherein each fixing table comprises a connecting part and a fixing and clamping part connected with the connecting part, the fixing tables are connected with the base in a detachable mode through the connecting parts, the fixing and clamping parts of the two fixing tables are matched to form a fixing through hole allowing the experimental animal to pass through, and the end faces, away from the connecting parts, of the two fixing and clamping parts are matched to clamp the back skin of the experimental animal so that the back skin which is pulled up of the experimental animal can be spread on the outer walls of the fixing and clamping parts. The fixing device used for fixing the back skin of the experimental animal has the advantages that the back skin of the experimental animal can be fixed, negative influence of respiratory movement of the experimental animal on imaging is effectively avoided, damage to the experimental animal is small due to the fact the non-invasive fixing method is adopted, and long-time and stable observation and study of a subcutaneous transplantation tumor model on the back of the experimental animal by means of a photoacoustic imaging system is available.