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214results about How to "Stable moisture content" patented technology

Detection method and system of water content in plant leaf based on multispectral image

The invention discloses a detection method and system of water content in a plant leaf based on a multispectral image. The detection method comprises the following steps: a) getting monochrome images of a green light wave band, a red light wave band and a near-infrared wave band of the plant leaf of a sample; b) getting grayscale information of the monochrome images and getting grayscale texture characteristic quantity of the plant leaf of the sample; c) transforming the grayscale information to reflectivity information of the plant leaf of the sample and getting leaf vegetation index value through the reflectivity information; d) taking the grayscale texture characteristic quantity and the leaf vegetation index value as input vectors, taking actually measured water content value of the plant leaf as an output vector, and establishing a model; and e) getting the grayscale texture characteristic quantity and the leaf vegetation index value of the plant leaf to be detected by operating according to the steps a)-c) and putting into the model in the step d) to get the water content value of the plant leaf to be detected. The method disclosed by the invention can realize accurate, fast, non-destructive and real-time detection of the water content in the plant leaf.
Owner:ZHEJIANG UNIV

Production process of high-grade fir melamine ecological board

ActiveCN105459221AReduces surface white bloomsReduce defects such as carbonizationOther plywood/veneer working apparatusLaminationInfraredProduct inspection
The invention belongs to the field of board machining and particularly relates to a production process of a high-grade fir melamine ecological board. The process particularly includes the following steps of poplar middle plate selection, poplar middle plate splicing, fir core veneer selection, fir core veneer sanding, fir core veneer slotting, core veneer gluing, infrared ray board arrangement for forming a blank, cold pressing, core cutting, hot pressing, putty application, maintenance, sanding, semi-checking, secondary putty application, secondary sanding, gluing and veneering, base board cold pressing, base board edge cutting, base board hot pressing, base board putty application, base board fixed-thickness sanding, base board edge sawing, base board inspection, repairing, melamine impregnated paper hot pressing and finished product inspection, packaging and warehousing of finished products. The production process has the advantages that fir core veneers are adopted, the hardness, nail-holding ability and static bending strength of the board is improved; eucalyptus middle plates are replaced with poplar middle plates, and the defects that the surface of the finished products is stained and carbonized caused by multiple burrs and scabs on the surfaces of the gum wood are reduced effectively.
Owner:ZHEJIANG SHENGHUA YUNFENG GREENEO

Compact kitchen waste aerobic fermentation equipment

The invention provides compact kitchen waste aerobic fermentation equipment, which is composed of a reaction chamber with a stirrer, a cooling water circulating and condensate water collecting system, an air heating ventilation system having the function of deodorizing, a water bath heating and thermal insulation system, and an intelligent control system with a remote supervisor; a travel switch is arranged in the reaction chamber and used for changing the stirring direction of a motor; a heater and a temperature sensor are arranged in a water bath cavity; heat is supplied to the reaction chamber in time according to reaction requirements; a thermal insulation interlayer is outside the water bath cavity and used for insulating the chamber; the air heating ventilation system is capable of ensuring enough oxygen concentration in the reaction chamber in the treatment process; the cooling water circulating and condensate water collecting system is capable of condensing and guiding out water vapour in the reaction chamber in time; a tail gas deodorizing system is capable of preventing secondary pollution to the environment by malodorous gas in the reaction chamber; and the equipment is controlled to operate by a PLC (Programmable Logic Controller) intelligent control system. The compact kitchen waste aerobic fermentation equipment disclosed by the invention is simple in structure, high in space utilization rate, low in operation energy consumption and good in processing effect.
Owner:INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI

Grouting reinforcement construction process capable of realizing draining and plugging combined effect for underground water in vertical shaft

InactiveCN103089301AAvoid the tendency to diffuse penetrationPrevent sinkingFoundation engineeringDrainagePhosphoric acidSlurry
The invention relates to a grouting reinforcement construction process capable of realizing a draining and plugging combined effect for underground water in a vertical shaft. The grouting reinforcement construction process includes steps of (1), temporarily sealing the bottom of the vertical shaft, arranging grouting pipes on inner and outer sides of the vertical shaft, arranging drain pipes matched with the grouting pipes on the vertical shaft and locally pumping the water by a vacuum pump; (2), diluting sodium silicate of raw grout 39Be' by water to obtain grout 28Be', mixing TGRM grouting materials with cement according to a proportion of 1:3 to obtain second grout, mixing the grout 28Be' with the second grout according to a proportion of 1:1 to obtain liquid A, diluting sodium silicate of raw grout 39Be' by water to obtain grout 30Be', diluting strong phosphoric acid by water according to a proportion of 1:6 to obtain diluted phosphoric acid, and mixing the grout 30Be' with the diluted phosphoric acid according to a proportion of 1:1 to obtain liquid B; (3), alternately filling the liquid A and the liquid B into reinforcement soil layers of the vertical shaft via the grouting pipes and completing grouting for the periphery of the vertical shaft; and (4), feeding small pipes within a 1.5m range of the periphery of the vertical shaft by the aid of high-pressure blast, and alternately filling the liquid A and the liquid B into the periphery of the vertical shaft via the small pipes. The grouting reinforcement construction process has the advantages that 'draining' and 'plugging' are combined and work along both lines in the grouting construction process for the vertical shaft, so that water layers are prevented from diffusing and permeating towards feeble grouted positions, the vertical shaft construction difficulty is lowered, and the construction safety degree is increased.
Owner:BEIJING MUNICIPAL CONSTR

Automatic water distribution system for brick manufacturing device

ActiveCN104441209ATo achieve the purpose of auxiliary regulationTo achieve the purpose of closed-loop feedback regulationAuxillary shaping apparatusBrickMeasurement device
The invention discloses an automatic water distribution system for a brick manufacturing device. The automatic water distribution system comprises a water tank, a main water supply portion connected with the water tank, an auxiliary water supply portion connected with the water tank and used for supplying water to a brick manufacturing machine, a weighing sensor arranged on a brick manufacturing raw material conveying belt and used for detecting material flow of the brick manufacturing raw conveying belt, a current measuring device electrically connected with the brick manufacturing machine and used for detecting the actual working current of the brick manufacturing machine, a controller electrically connected with the current measuring device, the main water supply portion, the auxiliary water supply portion and the weighing sensor. The controller adjusts the water flow in the main water supply portion according to the material flow measured by the weighing sensor and the given required water proportion. The controller adjusts the water flow in the auxiliary water supply portion according to the difference value of the actual working current, measured by the current measurement device, of the brick manufacturing machine and the given working current. The water distribution system is provided with double water supply portions and capable of adjusting the water content of materials precisely to meet the forming requirement.
Owner:CHONGQING CENGTER GRAND TECH

Preparation method of water content standard material

The invention relates to a preparation method of a water content standard material. The method comprises the steps of: weighing the mass of a dried glass volumetric flask, adding propylene carbonate, 1-butanol and xylene in proportion, and weighing the mass of the mixed solution; measuring water in the mixed solution, and calculating the mass of water needing to be added according to a preparation target value; adding deionized water into the volumetric flask and mixing the solution well; shifting part of the mixed solution into an ampoule bottle, adjusting the humidity of a constant temperature and humidity chamber, monitoring water content variations over time under different humidity conditions; recording the humidity within the constant temperature and humidity chamber when the solution water content varies minimally; under a humidity condition with stable solution water content, charging ampoule bottles with the mixed solution separately, and sealing the ampoule bottles; taking the mean of the results measured by Coulometry and volumetric methods as the water content of a standard material; and evaluating the water uncertainty. The water content standard material prepared by the method of the invention is beneficial for improving the accuracy of a Karl Fischer water titrator measuring result.
Owner:NAT INST OF METROLOGY CHINA

Kitchen waste aerobic fermentation equipment with capability of rapid drying

The invention provides kitchen waste aerobic fermentation equipment with the capability of rapid drying. The kitchen waste aerobic fermentation equipment comprises a reaction cavity with the function of mixing, a cooling water circulation and condensate water collection system, an air heating and ventilation system with the function of deodorization, a water bath heating and thermal insulation system and an intelligent control system with the function of remote monitoring, wherein a temperature / humidity sensor and an oxygen concentration sensor are installed in the reaction cavity and used for monitoring the temperature, the humidity and the oxygen concentration in the reaction cavity; a heater and a temperature sensor are installed in a water bath cavity and can be used for providing heat to the reaction cavity timely, a thermal insulation interlayer is arranged outside the water bath cavity and used for preserving the heat of the water bath cavity; the air heating and ventilation system can be used for ensuring the oxygen concentration in the reaction cavity in the treating process; the cooling water circulation and condensate water collection system can be used for educing water vapor in the reaction cavity timely; a tail gas deodorization system can be used for preventing secondary environmental pollution due to the gas; and the equipment is controlled to run by a PLC (Programmable Logic Controller) intelligent control system. The kitchen waste aerobic fermentation equipment has a simple structure, is low in the running energy consumption and is good in the treating efficiency.
Owner:INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI

Grouting water sealing and reinforcement construction process capable of realizing draining and plugging combined effect for underground water in tunnel

InactiveCN103089280AAvoid the tendency to diffuse penetrationPrevent sinkingUnderground chambersTunnel liningPhosphoric acidSlurry
The invention discloses a grouting water sealing and reinforcement construction process capable of realizing a draining and plugging combined effect for underground water in a tunnel. The grouting water sealing and reinforcement construction process includes steps of (1), arranging grouting pipes from the inner side to the outer side of the tunnel, simultaneously arranging drain pipes matched with the grouting pipes in the tunnel, connecting the drain pipes with a vacuum pump so as to locally pump the water; (2), diluting sodium silicate of raw grout 39Be' to obtain grout 28Be', mixing TGRM grouting materials with cement according to a proportion of 1:3 to obtain second grout, mixing the grout 28Be' with the second grout according to a proportion of 1:1 to obtain liquid A, diluting sodium silicate of raw grout 39Be' by water to obtain grout 30Be', diluting strong phosphoric acid by water according to a proportion of 1:6 to obtain diluted phosphoric acid, and mixing the grout 30Be' with the diluted phosphoric acid according to a proportion of 1:1 to obtain liquid B; (3), alternately filling the liquid A and the liquid B into reinforcement soil layers outside an excavation range of the tunnel via the grouting pipes to complete grouting for the periphery of the tunnel; and (4), alternately filling the liquid A and the liquid B into a 1.5m range of the periphery of an excavation face via small pipes. The grouting water sealing and reinforcement construction process has the advantages that 'draining' and 'plugging' are combined and work along both lines in the construction process, accordingly, the underground water is prevented from diffusing and permeating to feeble grouted positions, the tunnel construction difficulty is reduced, and the construction safety degree is increased.
Owner:BEIJING MUNICIPAL CONSTR
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