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460results about How to "Improve the induction effect" patented technology

Multi-phase-jump and vehicle full-dynamic induction traffic control method

InactiveCN104778845ASolve the situation of waiting in line (blind waiting)Improve the induction effectControlling traffic signalsTotal delayControl system
The invention relates to an urban intersection traffic signal control method, relates to a multi-phase-jump and vehicle full-dynamic induction traffic control method, and aims to flexibly control traffic signals at intersections by using a traffic signal instrument so as to improve the traffic pass property of vehicles at the intersections and reduce the total delay time of vehicles. The method comprises the following steps: 1) setting an upstream vehicle detector and a parking line vehicle detector at each lane of a traffic intersection, and detecting dissipating vehicle and information of vehicles entering the intersection in real time; 2) according to the numbers of vehicles waiting in different lanes and vehicles running into the intersections, automatically transmitting passing signals to busy lanes by using a busy lane priority pass method through a traffic signal instrument control system so as to induce the vehicles in the lanes to pass prior; 3) by using a method that compatible lanes adopt one same phase and non-compatible lanes are subjected to phase-jump induction control, providing the priority pass right for lanes with a plenty of waiting vehicles or a lane into which a plenty of vehicles run. Due to the adoption of the method, a relatively good induction effect can be achieved at intersections with unsaturated traffic vehicles.
Owner:HENAN INST OF SCI & TECH

System and method for monitoring sand production rate of oil-gas well

The invention relates to a system and a method for monitoring the sand production rate of an oil-gas well. The system comprises a high-frequency signal sensing device and a control device, wherein the high-frequency signal sensing device comprises an oil stream introducing pipeline and an oil stream returning pipeline which are arranged in parallel on an oil-gas production pipeline of the oil-gaswell; the oil stream introducing pipeline is provided with a fixed displacement pump; the oil stream returning pipeline is provided with a pressure sensor; an oil stream monitoring pipeline is arranged between the oil stream introducing pipeline and the oil stream returning pipeline; a signal sensing drum is arranged between the oil stream monitoring pipeline and the oil stream returning pipelineand bonded with a high-frequency signal sensor; the control device comprises a data acquisition system which acquires pressure and impact signals monitored by the pressure sensor and the high-frequency signal sensor, transmits the acquired signals to a filter amplifier for filtering and signal amplifying and transmits the filtered and amplified signals to a signal processing unit; and the signal processing unit analyzes and judges the impact signals monitored by the high-frequency signal sensor so as to monitor the sand production rate of oil-gas stream in real time. The system and the methodare suitable for the field of oil-gas well development engineering.
Owner:CHINA NAT OFFSHORE OIL CORP +1

Phellinus igniarius mycelium liquid fermentation method by utilizing fungal elicitor for improving yield of flavone of phellinus igniarius

The invention discloses a phellinus igniarius mycelium liquid fermentation method by utilizing a fungal elicitor for improving the yield of flavone of phellinus igniarius, which comprises the steps of: inoculating a fungal elicitor strain for activated culture, and then inoculating and culturing a fungal block to obtain a fungal elicitor mycelium through filtration; then drying, grinding and crushing the fungal elicitor mycelium, adding the crushed fungal elicitor mycelium into ethanol for soaking, filtering the obtained solution, collecting filter residue, orderly adding a mixed solution of chloroform and normal butanol, acetone and water into the filter residue for washing, adding trifluoroacetic acid into a dry substance after the air-drying, performing boiling water bath for 0.5 to 2 hours, then filtering the obtained solution, taking a filtrate for neutralization, standing the filtrate, using a microporous filtering film with the pore diameter between 0.4 and 5mu m to filter the filtrate for sterilization to obtain the fungal elicitor, and cryopreserving the fungal elicitor at the temperature of between 10 and 20 DEG C below zero; inoculating a phellinus igniarius strain for activated culture, and then inoculating a fungal block for fermentation culture; and adding the fungal elicitor into the phellinus igniarius to continue culturing to obtain a phellinus igniarius mycelium within 1 to 5 days of liquid fermentation culture of the phellinus igniarius. The method has simple process, low cost and remarkable effect, can greatly improve the content of the flavone of phellinus igniarius cells, and is a production method with industrialization prospect.
Owner:LUDONG UNIVERSITY

Pearl powder artificial bone supporting material with multi-stage micro-nano structure and technique for producing the same

The invention relates to a novel biological scaffold material for bone repair and a preparation method thereof. PLGA and PLA with a mass ratio of 1: 1-10: 1 are dissolved into chloroform, dimethyl sulfoxide, 1, 4-dioxane or a mixed liquid of the 1, 4-dioxane and ultrapure water, and then pearl powder which is subjected to partial or complete deproteinization treatment is added into the obtained product according to the proportion of the PLGA / a PLA mixture to the pearl powder (mass ratio) is 1: 1-10: 1 to obtain forming slurry. A three-dimensional scaffold with high porosity and connectivity rate is designed through a 3D software, and then a low-temperature rapid forming system is utilized to ensure that the three-dimensional scaffold is formed to obtain a scaffold with a microporous structure. An artificial bone biological scaffold material prepared by the method has a three-dimensional scaffold structure that a macroscopic structure has aperture channels with diameters of between 100 and 500mu m and a microstructure has micropores with diameters of between 10 and 20mu m, wherein micron pearl powder is dispersedly distributed on walls of the micropores. The porosity is between 60 and 90 percent, and a macroporous structure is perforated in three directions of X axis, Y axis and Z axis, and has 100 percent of connectivity.
Owner:REGENOVO BIOTECH

Multi-light position multi-dimensional tunnel lighting mode

ActiveCN102840519AThe irradiation direction is reasonableReasonable illumination distributionPoint-like light sourceElectric circuit arrangementsLight sourceEngineering
The invention provides a multi-light position multi-dimensional tunnel lighting mode which is composed of a plurality of dimensional lighting components, which are respectively the low-light position reverse lighting component, the homodromous lighting component, the transverse lighting component and the high-light position reverse lighting component. All the lighting components are independent on lighting functions, light color scope, lighting direction and lighting space, and can be individually adjusted. Each component is provided with a special light source and a light which are installed at low position and independently run based on the task characteristics, and the special demands on pavement lighting, space lighting and tunnel lighting can be met. The efficiency can be maximized in each task, so that the total lighting can be comprehensively optimized. With the adoption of the multi-light position multi-dimensional tunnel lighting mode, the shortcomings of the traditional tunnel lighting mode can be overcome; the light source and the light which have different functions perform relevant functions, so that a series of problems of tunnel lighting can be effectively solved, and the lighting efficiency can be greatly improved. The multi-light position multi-dimensional tunnel lighting mode is independently applied and developed based on the property of the low power and high light efficiency light source; the lighting mode of traditional tunnel light is completely removed; and the mode of simply replacing HPS (High Pressure Sodium) and MH (Metal Halide) lights with the LED lights can be changed.
Owner:SHENZHEN UNIV

Electrochemical sensor based on metal organic framework-vertical graphene composite structure and preparation method thereof

InactiveCN108982622AOptimized inductive and conductive performanceOptimize device functionalityMaterial electrochemical variablesAmount of substanceMetal-organic framework
The invention belongs to the technical field of biosensors, and in particular discloses an electrochemical sensor based on a metal organic framework-vertical graphene composite structure and a preparation method thereof. The preparation method specifically comprises the following steps: (1) growing vertical graphene on a stainless steel substrate; (2) synthesizing various different metal organic framework (MOF for short) materials such as ZIF-8, KAUST-1 and Ni-MIL-77 by taking the vertical graphene on the stainless steel substrate as a template; and (4) constructing the electrochemical sensorby taking the MOF-vertical graphene composite nanostructure as an electrode material. The electrochemical sensor has higher electric conductivity, larger specific surface area and more types of responsive substance surfaces, and the preparation method is relatively clear, different MOFs can be made by selecting materials according to performance of chemical reactions directly, and the spatial structure of the MOF material can be altered according to performance demand, so that the electrochemical sensor which further meets the demand can be manufactured more easily, and is wide in applicationrange.
Owner:SUN YAT SEN UNIV

Ionic induction type artificial skin array structure and preparation method thereof

The invention discloses an ionic induction type artificial skin array structure and a preparation method thereof. The array structure is characterized in that the array structure is an array structure formed by distributing composite electrode fibers in a crossed mode, or an array structure formed by distributing composite electrode fibers and flexible fiber electrodes made of conductive materials in a crossed mode, or a fabric structure formed by weaving composite electrode fibers, or a fabric structure formed by blending and weaving composite electrode fibers and flexible fiber electrodes made of conductive materials, wherein the composite electrode fibers are composed of core layers and sheaths, the core layers are flexible fiber electrodes made of the conductive materials, the sheaths are wrapping layers of the flexible fiber electrodes made of polyelectrolyte, the outer surfaces of the core layers are wrapped by the sheaths, and the two ends of the core layers are exposed. The ionic induction type artificial skin array is based on ionic migration, and can simulate the biological skin tactile sense biological electric induction principle. Compared with artificial skin materials of other types, the induction ability higher, and response is more sensitive.
Owner:HEFEI UNIV OF TECH

Method for cultivating, rapidly propagating and regenerating tissues of seedlings of radix aconiti lateralis preparata

InactiveCN106212275AAdventitious bud induction effect is goodImprove the induction effectPlant tissue cultureHorticulture methodsSeedlingAconitum
The invention discloses a method for cultivating, rapidly propagating and regenerating tissues of seedlings of radix aconiti lateralis preparata. Stem fragments with auxiliary buds, stem fragments, sterile leaves and seeds of the radix aconiti lateralis preparata are used as explants, rapid propagation systems and seed sterile cultivation and regeneration systems for optimizing the radix aconiti lateralis preparata are built by the aid of links of disinfection conditions, bud induction, bud multiplication, rooting and transplanting, callus induction, multiplication and differentiation and the like, and technical support can be provided for industrializing seedling growing. The method includes a process for rapidly propagating the radix aconiti lateralis preparata, a process for regenerating and propagating the radix aconiti lateralis preparata and a process for rapidly growing the seedlings of the radix aconiti lateralis preparata. The process for rapidly propagating the radix aconiti lateralis preparata includes a technology for rapidly propagating the stem fragments of the radix aconiti lateralis preparata and a technology for rapidly propagating the seeds; the process for regenerating and propagating the radix aconiti lateralis preparata includes a technology for regenerating and propagating the stem fragments and adventitious roots of the radix aconiti lateralis preparata and a technology for regenerating and propagating the sterile leaves of the radix aconiti lateralis preparata. The stem fragments and the adventitious roots of the radix aconiti lateralis preparata are used as explants in the technology for regenerating and propagating the stem fragments and adventitious roots of the radix aconiti lateralis preparata. The sterile leaves of the radix aconiti lateralis preparata are used as explants in the technology for regenerating and propagating the sterile leaves of the radix aconiti lateralis preparata. The method has the advantages that the radix aconiti lateralis preparata seedling rapid propagation and growing efficiency can be obviously improved, the seedling growing periods can be obviously shortened, technical support can be provided for production application of radix aconiti lateralis preparata seedling rapid propagation and growing, and problems in the aspect of seedling propagation and growing on current markets can be effectively solved.
Owner:SOUTHWEAT UNIV OF SCI & TECH

Rotor position detection device for permanent magnet motor

The invention discloses a rotor position detection device for a permanent magnet motor. The rotor position detection device comprises a Hall position sensor, a permanent magnet, a rotor core and a stator core, wherein the permanent magnet, the rotor core and the stator core form the permanent magnet motor; the permanent magnet is positioned between the rotor core and the stator core, and is connected with the rotor core; the Hall position sensor is arranged above the upper surface of the permanent magnet; a certain space is reserved between the Hall position sensor and the upper surface of the permanent magnet; the axis of the Hall position sensor forms an included angle Theta with the upper surface of the permanent magnet; the detection surface of the Hall position sensor faces the upper surface of the permanent magnet; a magnetization lining plate is arranged on the back surface of the Hall position sensor; the Hall position sensor is connected with a printed circuit board (PCB) through a non-magnetization bracket; the PCB is connected with the stator core through a PCB bracket; and a signal wire and a power cord of the Hall position sensor are electrically connected with a preposed processing circuit on the PCB. The device has the characteristics of simple and rational structure, high sensing capability and wide application range.
Owner:MIDEA WELLING MOTOR TECH SHANGHAI

Low-lighting-position and multidimensional lighting street lamp

The invention discloses a low-lighting-position and multidimensional lighting street lamp. The street lamp is lighting equipment designed according to 'a low-lighting-position and multidimensional road lighting mode' invented by the inventor. The low-lighting-position and multidimensional lighting street lamp comprises a lamp body, a light source, a fixing device and a pipeline. Lighting light sources for different purposes and the lamp are integrated, and the light sources and circuits are placed in a hollow lamp body to form the integrated street lamp. Problems of glare and invalid lighting are solved, and energy consumption is greatly reduced. The conventional mainstream snake-head lamp lighting mode is eliminated, and a simple replacement mode of replacing other light sources by using light-emitting diode (LED) lamps is also eliminated. Because the low-power LED light source is used for lighting in a dispersion manner, longitudinal uniformity degree is increased, and the problem that the conventional high-power LED street lamp is poor in heat dissipation is solved. Compared with the traditional street lamp, the low-lighting-position and multidimensional lighting street lamp has the advantages that integration level is high, the lamp is convenient to assemble and disassemble in fields, daily maintenance is facilitated, and a lamp pole is not required; and the one-time investment and the running cost of the low-lighting-position and multidimensional lighting street lamp are greatly reduced compared with those of the conventional mainstream road lighting system.
Owner:SHENZHEN UNIV

Pelteobagrus fulvdraco sperm ultralow temperature freezing and recovery technology

The invention relates to pelteobagrus fulvdraco sperm ultralow temperature freezing storage and recovery method. Parent pelteobagrus fulvdraco which is in good shape and good growth, has no disease and is sexually mature is selected, 30Mug/kg LHRH-A2 intraperitoneal injection is carried out to induce sperm increasing, after 36 hours, dissection is carried out to obtain spermary, and the spermary is cut into pieces in a clean mortar cooled in a refrigerator at 4 DEG C in advance, the pieces are diluted by Ringers solution in the proportion of 1:6, balancing is carried out for 30min at 4 DEG C, 10% methyl alcohol is added, and mixing to be uniform is carried out, packaging is carried out, balancing is carried out for 10min 6cm above liquid nitrogen surface, and balancing is carried out for 5min on the liquid nitrogen surface, and then the product is thrown into liquid nitrogen to be stored. Water bath ate 37 DEG C is carried out, activation solution SM is used for activation, pelteobagrus fulvdraco roe is extruded into a container, frozen sperm is added in drops in the sperm roe quantity ratio of 105:1, stirring to be uniform is carried out, then appropriate activation solution SM is added in drops, and stirring to be uniform is carried out, so that fertilization of roe is carried out. The sperm stored by the invention has high quality, has insemination capability and has important theoretical significance and application value on seed quality saving, inheritance breeding, sustainable culture and disease control of pelteobagrus fulvdraco.
Owner:FRESHWATER FISHERIES RES INSITUTE OF JIANGSUPROVINCE +1

Fiber felt manufacturing device

The invention provides a fiber felt manufacturing device and relates to fiber felt. The fiber manufacturing device comprises a spinning box, a vibration generating device, a vibration transmitting system, a solution supply system, a collecting device, a high-voltage power supply, inducing pieces and fixing pieces. The interior of the spinning box is divided into a vibration transmitting chamber and a solution trough, the vibration transmitting system is arranged in the vibration transmitting chamber, and the vibration transmitting system is provided with a vibration output shaft, a connecting seat and a vibration transmitting block. The solution supply system is provided with a solution storage tank and a metering pump. The vibration output shaft is fixed to the spinning box through the connecting seat, the shaft end of the vibration output shaft is connected with one end of the vibration transmitting block, and the inducing pieces are hinged to the other end face of the vibration transmitting block. Inducing piece protrusions are arranged on the tops of the inducing pieces, and fixing piece protrusions are arranged on the tops of the fixing pieces. A concave fixing block is arranged in the solution trough, and the fixing pieces are fixed in grooves of the concave fixing block. The metering pump is communicated with the solution trough through a solution supply pipe, solution is supplied to the solution trough through the metering pump, the collecting device is arranged over the solution trough, and the collecting device is electrically connected with the output end of the high-voltage power supply.
Owner:XIAMEN UNIV

Highway exit downgrade ramp inducing system and design method

ActiveCN108755481AEase the curveAlleviate the illusion of slopeTraffic signalsRoad signsIntermediate frequencyControl theory
The invention relates to the technical field of road traffic safety, in particular to a design method of a highway exit downgrade ramp inducing system. The highway exit downgrade ramp inducing systemcomprises multiple low frequency single-layer linear inducing marks, multiple low frequency multi-layer linear inducing marks, a medium frequency yellow light-reflective aluminum plate, continuous high frequency cat eye road studs, multiple anti-collision buckets and a light-reflective vibration mark line, wherein the multiple low frequency single-layer linear inducing marks are arranged behind anexit ramp nose guardrail; the multiple low frequency multi-layer linear inducing marks are arranged behind the exit ramp nose guardrail; the medium frequency yellow light-reflective aluminum plate isarranged on an exit ramp left side guardrail; the continuous high frequency cat eye road studs are arranged on a beginning lane edge line of an exit ramp deceleration lane; the multiple anti-collision buckets are arranged in the position, close to the internal side of a guardrail, of the nose end of the exit ramp; the light-reflective vibration mark line is arranged on the edge line of an exit ramp lane; the single-layer linear inducing marks, the multi-layer linear inducing marks, the yellow light-reflective aluminum plate and the cat eye road studs are correspondingly arranged to form multi-frequency active inducing vision information; the arranging ending positions of the single-layer linear inducing marks, the multi-layer linear inducing marks, the yellow light-reflective aluminum plate and the cat eye road studs are the ending cross section of a ramp curve; and the anti-collision buckets, the light-reflective vibration mark line and the guardrail are correspondingly arranged to form a passive protection facility.
Owner:湖北晶视通交通科技有限公司
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