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330results about How to "Large choice" patented technology

Method and device for measuring electroencephalo of human body having mental pressure and for relaxation training

The invention relates to a method and device for measuring electroencephalo of a human body having mental pressure and for relaxation training. The device provided by the invention comprises an electroencephalo collecting electrode, a preprocessing unit, an analog-to-digital conversion unit, a central control unit and earphones. The method provided by the invention comprises the steps of: firstly, collecting initial electroencephalo data; secondly, calculating SI(0); thirdly, providing guiding respiratory parameters; fourthly, recording the respiratory parameters; fifthly, collecting electroencephalo data; sixthly, calculating SI; seventhly, judging whether SI is decreased or not; eighthly, keeping M(i) constant; and ninthly, adjusting the respiratory parameters. The method provided by the invention can better reflect the mental stress of a user and have high degree of accuracy and good real-time performance; the device provided by the invention has fewer electrodes and is convenient for installation; and a collection circuit and other hardware structure parts are simple, and the manufacturing cost is very low. According to the method and device provided by the invention, a noninvasive method for quantificationally assessing mental stress or mental pressure and a mental pressure relaxation training device based on the method are realized, which have certain easing function on mental pressure of the human body.
Owner:XIDIAN UNIV

System and method for intelligent control over automobile air conditioner according to fuzzy control

The invention provides a system and method for intelligent control over an automobile air conditioner according to fuzzy control and relates to the field of control over automobile air conditioners. The system for intelligent control over the automobile air conditioner according to fuzzy control comprises a temperature detecting device used for detecting the temperature in an automobile passenger cabin, a data processing unit used for obtaining the temperature difference in the passenger cabin and the change rate of the temperature difference in the passenger cabin according to the temperature, a fuzzy controller which is used for conducting fuzzification on the temperature difference and the change rate, conducting fuzzy inference according to a control rule list to obtain a fuzzy controlling quantity, obtaining an accurate control quantity after making the fuzzy control quantity clear, and outputting an accurate control quantity signal according to the accurate control quantity and the automobile air conditioner used for changing the temperature of the passenger cabin according to the accurate control quantity signal. By the adoption of the system and method for intelligent control over the automobile air conditioner according to fuzzy control, the temperature of the passenger cabin can be rapidly changed, the temperature of the passenger cabin is kept in the degree that a driver and passengers feel comfortable, the oxygen content and the ventilation condition in the passenger cabin are also considered, the comfortable sensation of the driver and the passengers is improved, and the risk of carbon monoxide poisoning is reduced.
Owner:ZHEJIANG GEELY HOLDING (GROUP) CO LTD +1

Heating wire heating device and construction method for winter concrete

The invention discloses a heating wire heating device and a construction method for winter concrete. The construction method comprises the following steps of: calculating and determining the total power of adopted heating wires according to physical parameters of concrete members, templates and a heat insulating material, and environmental temperature; determining a heating wire arrangement diagram according to a calculated result; determining a scheme for connecting a power line and the heating wires; pouring concrete, and laying plastic cloth isolating layers on the concrete members; arranging the heating wires on the plastic cloth isolating layers, and immediately covering heat insulating layers on the heating wires; and measuring temperature continuously for three days every 2 hours, and controlling the temperature of the concrete members to be between 10 and 20 DEG C by controlling the on/off of the heating wires. The power supply heating construction method is adopted, the temperature requirement due to strength increase of the winter concrete is met, the constraint of construction conditions and the difficulty of the conventional construction method are avoided, the construction is simple, the operation is convenient and the construction cost is saved. The invention is suitable for winter concrete construction.
Owner:CHINA CONSTR SECOND ENG BUREAU LTD +1

Thermal-insulation photovoltaic tile and producing method thereof

The invention discloses a thermal-insulation photovoltaic tile. The thermal-insulation photovoltaic tile is characterized by being composed of a flexible thermal-insulation substrate and a flexible photovoltaic cell component which is bound on the flexible thermal-insulation substrate through an inflaming retardant polymer binder. The flexible thermal-insulation substrate is a nano silicon dioxide aerogel felt core material with two sides covered with flexible water-proof sheets. The flexible photovoltaic cell component comprises a flexible thin-film cell component, a film layer and a coating layer from the interior to the exterior successively. The flexible water-proof sheets are in layer structures, and each comprises a lower inflaming retardant polymer cement mortar layer, a high-tenacity glass fiber reinforced inflaming retardant non-woven fabric padding and an upper inflaming retardant polymer cement mortar layer from the bottom to the top successively, and the three layers of structures are integrally consolidated. According to the thermal-insulation photovoltaic tile, the flexible substrate which is water proof and impervious, fire proof and inflaming retardant, anti-crack and impact resistant, thermal insulating and light and thin is combined with the amorphous silicon flexible thin-film solar photovoltaic cell component to form the photovoltaic roof tile which can be fire proof and water proof and thermal insulation and can perform photovoltaic power generation.
Owner:金玛环保科技有限公司

Precise molding method of biomimetic micro-channel system based on plant veins

InactiveCN102923639ABroaden the scope of application of materialsOvercome structural deformationDecorative surface effectsChemical vapor deposition coatingSilicon moldOrganic solvent
The invention relates to a precise molding method of a biomimetic micro-channel system based on plant veins. According to the invention, leaf mesophyll parts are removed, such that a leaf vein structure is obtained; a metal film is sputtered on the surface of the leaf vein structure, such that a vein mask is obtained; with a mask light curing technology, the vein mask is transferred onto a photoresist adhered to the surface of a glass plate or a silicon wafer; development is carried out, and a photoresist vein structure is obtained; a metal film is sputtered on the surface of the photoresist vein structure; the material is placed in an organic solvent, such that a metal film mask layer is formed on non-vein areas; a vein channel silicon mold or resin mold is manufactured; and a silicone rubber mold with a vein channel structure negative shape is cloned; and the silicone rubber mold is adopted as a template, such that complicated biomimetic vein micro-channel structures can be precisely duplicated on various materials. With the method provided by the invention, defects such as easy deformation, easy damage, and unsuitability for situations with high temperatures of a method for directly utilizing natural plant veins as a mold are overcome, and a possibility is provided for manual modification of natural vein structural performance.
Owner:XI AN JIAOTONG UNIV

Sheared towel with one-side terry and one-side velutum

ActiveCN101343811AReasonable organizational structureRich textureWoven fabricsWater storageMoisture absorption
The invention discloses a cutting velvet towel, which comprises a two-layer bottom fabric composed of warp yarns and weft yarns, a double-layer nap fabric which is formed by alternatively interweaving worsted warp yarns which have looped piles on both surfaces of the most outside of the two-layer bottom fabric, and worsted weft yarns through which the two-layer bottom fabric is connected, and after the warp yarns are cut from the middle of the two layers of fabrics, the cutting velvet towel with two pieces, one surface of which adopts a looped pile, and the other surface of which adopts a knap surface, is formed, and the two pieces are arranged up and down and face to face, and have the identical patterns. The two-layer bottom fabric can be also woven with the knap warp yarns which have looped piles on both surfaces at the most outside of the two-layer bottom fabric and simultaneously connect the two-layer bottom fabric. The invention solves the problems existing in the prior art and caused by the cutting of the looped piles on one surface of the double surface looped pile towel that the working procedures are multiple, the raw material consumption is large, the looped pipes and knops are not firm, and the towel is easy to depilate, the manufacture procedures are reduced, the cost of raw material is reduced, the product quality is improved, and the cutting velvet towel has theadvantages that the looped piles and the knops are firm, the hand feeling are soft and the moisture absorption and water storage rate is high.
Owner:常州市悦腾机械有限公司

High-density solid fermentation method for agricultural bacillus

The invention belongs to the technical field of microorganism bacterium agent fermentation, and particularly relates to a high-density solid fermentation method for agricultural bacillus. The fermentation method comprises the following steps that 1, sterilization treatment is performed on fermentation materials; 2, a fermentation device is sterilized; 3, the fermentation materials in the step 1 are put into the fermentation device in the step 2, and bacillus is inoculated into the fermentation materials; 4, aerated fermentation is performed on the fermentation materials; 5, the fermentation materials are dried. According to the method, the raw materials of a culture medium are simple, choosing range is wide, and the cost is low; the floor space is small, the requirement on equipment is low, special machines and tools are not needed, assembly is convenient, energy consumption is low, and therefore the production cost is much lower than that of liquid fermentation and only accounts for 30%-50% of that of liquid fermentation; compared with pile fermentation and traditional shallow tray fermentation, the fermentation method has the advantages that the requirements for temperature, humidity and ventilatory capacity in the bacillus growth process are taken into account, and the problems such as metabolic heat removal and mass transfer in the bacillus solid fermentation process are effectively solved.
Owner:JINAN HANGCHEN BIOTECHNOLOGY CO LTD

Fuzzy control based intelligent car seat heating control system and method

InactiveCN103448589AAccurate control of heating capacityGuaranteed real-timeSeat heating/ventillating devicesControl systemFuzzy reasoning
The invention discloses a fuzzy control based intelligent car seat heating control system and method and relates to the field of car seat heating. The intelligent car seat heating control system comprises a temperature sensor, data processing equipment, a fuzzy controller and a seat heating device, wherein the temperature sensor is used for detecting the temperature of a car seat surface, the data processing equipment is used for calculating temperature difference of the car seat surface and the change rate of the temperature difference which is obtained by subtracting the actually-measured temperature value of the seat surface from the preset temperature value of the seat surface, the fuzzy controller is used for fuzzifying the temperature difference and the change rate and defuzzifying the temperature difference and the change rate with fuzzy reasoning to obtain accurately controlled quantity, a control rule table is obtained by experimental statistics of comfortableness of the temperature of drivers and passengers, the seat heating device is used for heating the seat according to accurately-controlled quantity signals. Therefore, the temperature of the car seat surface can be accurately controlled to keep at a stable comfort temperature.
Owner:ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1
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