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454results about How to "Low environmental impact" patented technology

Aluminum oxide ceramic substrate with high heat conductivity and preparation method thereof

The invention discloses an aluminum oxide ceramic substrate with high heat conductivity. The aluminum oxide ceramic substrate is prepared by steps of stirring a ceramic powder material, a binder, a plasticizer, a dispersant and a solvent uniformly, preparing a ceramic raw-ceramic substrate through a tape casting method, glue discharging and sintering. The aluminum oxide ceramic substrate is characterized in that the solvent is a mixture of butanol, isopropanol and butyl acetate, and the ceramic powder material comprises aluminium oxide powder and auxiliary agents. The invention also discloses a preparation method for the aluminum oxide ceramic substrate with the high heat conductivity. According to the aluminum oxide ceramic substrate and the preparation method, the solvent system which comprises the butanol, the isopropanol and the butyl acetate are used as the main solvent in place of traditional toluene, thus enhancing dissolution of PVB by the solvent, thereby guaranteeing uniformity of raw ceramic slurry, making physical properties of sintered ceramic stable, reducing environmental influences of the exhausted gas during production processes compared to traditional modes of production, contributing to energy conservation and emission reduction, and reducing the cost.
Owner:NANJING ZHONGJIANG NEW MATERIAL TECH

Underwater outer circular pipe cleaning and detecting robot

PendingCN109229310ALarge range of reciprocating motionFlexible operationVessel cleaningHullsCommunications systemEnvironment effect
The invention discloses an underwater outer circular pipe cleaning and detecting robot, which comprises a chassis, a propeller propulsion system, a center of gravity adjusting mechanism, a cleaning system, a manipulator, a light communication system and an operation detecting tool. The chassis is located below the robot, and is used for providing a stable operation platform to support and drive the robot to crawl; The propeller propulsion system is fixed on the upper part of the chassis for driving the robot to suspend; The center of gravity adjusting mechanism is located below the chassis foradjusting the center of gravity position of the robot. The cleaning system is fixed under the front part of the chassis and is used for underwater cleaning. The manipulator is fixed on the front partof the robot chassis and used for grasping the operation detection tool. Light communication system is used to provide lighting, camera and external communication functions. At that same time, the invention has the function of cleaning and detection, has flexible operation, small environmental influence, large operation time window and moderate operation cost, can provide a stable detection platform for the detection of offshore and underwater facilities, and improves the detection precision.
Owner:SHANGHAI OCEAN UNIV

Three-dimensional shape sensing monitoring method and system based on multi-core optical fiber

InactiveCN111023991AImprove general performanceLess affected by the environmentUsing optical meansGratingEngineering
The invention discloses a three-dimensional shape sensing monitoring method and system based on a multi-core optical fiber, and the method comprises the steps: obtaining the strain measured by all fiber gratings on each measuring section of the multi-core optical fiber, and obtaining the curvature and bending direction of each measuring section through inversion; performing interpolation and encryption processing on the curvature of each measuring section according to the measuring section interval to obtain a curvature function of each measuring section; substituting the curvature function ofeach measuring section into a Frenet equation set to obtain a vector expression of each measuring section; performing iterative operation according to the vector expression of each measuring sectionto obtain a central coordinate of each measuring section; and performing three-dimensional shape reconstruction according to the central coordinates of each measuring section, and determining the three-dimensional shape of a to-be-measured structure. According to the method, the key technical problems of three-dimensional shape autonomous sensing and diagnosis, curvature demodulation, three-dimensional shape reconstruction and the like are solved, and the requirements of future structural environment sensing and shape self-adaptive active control can be met.
Owner:BEIJING INST OF AEROSPACE CONTROL DEVICES

Near-infrared detection method for peanut quality and application

The invention belongs to the technical field of agricultural product quality analysis, and particularly relates to a near-infrared detection method for the peanut quality and application. The method comprises the following steps that peanut samples are collected, physical and chemical testing is performed on the peanut samples, near-infrared scanning is performed on the peanut samples, denoising processing and preprocessing are performed on obtained light absorption values, obtained preprocessed light absorption values are analyzed, near-infrared spectrum characteristic wavelengths are obtained through screening, and a prediction model of the peanut quality is built through a stepwise regression method. According to the near-infrared detection method for the peanut quality and the application, the obtained information is intuitive and reliable, the characteristic wavelengths of the peanut quality are determined and are few in number, and the analytical method that the model is built through the characteristic wavelengths is applied, so that the model precision is improved; on the condition of the same prediction precision, the prediction speed is high; meanwhile, through the built near-infrared prediction model method for the moisture, protein, fat, total sugar and ash content of peanuts, the peanut quality can be analyzed more comprehensively, and usage and popularization are easy.
Owner:HUAZHONG AGRI UNIV

Aquatic amino acid preparation and preparation method and aquatic feed thereof

The invention relates to an aquatic amino acid preparation and a preparation method and aquatic feed thereof, wherein the aquatic amino acid preparation comprises an amino acid raw material and a capsule auxiliary material, and is an amino acid microcapsule preparation prepared by a preparation method of the microcapsule preparation. The preparation method comprises the following steps: (1) preparing the amino acid raw material and the capsule auxiliary material; (2) melting the capsule auxiliary material; (3) emulsifying, shearing and agitating the melted capsule auxiliary material and the amino acid raw material at high speed; (4) insulating heat for the mixed material and spraying to prepare microcapsule particles; and (5) cooling and sieving the microcapsule particles to collect the prepared finished products of the amino acid microcapsule preparation. The aquatic feed is the aquatic feed in which the amino acid microcapsule preparation is added. The aquatic amino acid preparationhas better slow release property, special controlled release property, good anti-water-solution-loss property and better free-running property, can effectively promote the synchronous absorption of exogenous amino acid and protein amino acid in the feed, and has the characteristics of low formula cost, high cultivation benefit and little influence on the cultivation water environment.
Owner:GUANGDONG HINAPHARM PHARMA CO LTD

Cervical vertebra rehabilitation and health care training aiding system

The invention discloses a cervical vertebra rehabilitation and health care training aiding system, which comprises a headband and a computer, wherein a three-axis acceleration sensor, a microcontroller and a signal transmission module are arranged on the headband; the microcontroller collects three axial acceleration signals and sends the three axial acceleration signals to the computer through the signal transmission module; the computer receives the acceleration signals and transmits the acceleration signals to a cervical vertebra rehabilitation and health care training application program inside; the application program builds a virtual object for simulating head movement, utilizes information technology to build a virtual cervical vertebra training environment and preset an efficient and interesting training mission, i.e. presets mouse or keyboard movement corresponding to the movement of the virtual object in a two-dimensional space or a three-dimensional space, and drives the virtual object to move correspondingly according to mouse or keyboard movement converted by the three axial acceleration signals. Meanwhile, the application program judges whether the head movement meets a preset training mission requirement or not in real time according to acceleration information, and if not, a text, voice and/or picture prompt is displayed.
Owner:CAPITAL UNIVERSITY OF MEDICAL SCIENCES

Process technique for producing crop straw fuel

Under the guidance of a national policy, a technique for producing a biomass fuel by using crop straws is developed slowly so that the development of a downstream energy-consumption industrial (power generation, industries, civilian uses and the like) technique is obstructed. The straws are only used by civilian parts, and most of the straws are burnt. Mainstream techniques developed on markets comprise a biomass fuel granule granulating machine and a ring model briquetting machine, and both machines adopt a mechanical force compression technical scheme and do not solve technical problems fundamentally. The technical scheme of the invention is that: according to physical and chemical properties of the main components namely cellulose, hemicellulose and lignin of the straws, the cellulose, the hemicellulose and the lignin are separated from one another under a certain process condition; the cellulose is promoted to swell and increase an inter-felting capacity; the hemicellulose and thelignin are transformed, degraded and condensed into a phenolic aldehyde condensation compound to play a role of phenolic aldehyde resin; under the action of mechanical force, the phenolic aldehyde condensation compound is compressed and formed, and the density of a product fuel brick is between 1 and 1.4 tons/cubic meter; and each ton of the straw biomass fuel is amounted to about 0.5 ton of standard coal.
Owner:尚征

Fatigue drive detecting method based on eye features

The invention relates to a fatigue drive detecting method based on eye features. The fatigue drive detecting method based on the eye features comprises the following steps that a face detection classifier is established; drive state images of a driver are collected in real time; the eyes of the driver are accurately positioned in the drive state images; in continuous video images, according to the positions of the eyes in the image of the last frame, the positions of the eyes in the image of the current frame are accurately predicted; according to the predicated positions of the eyes, the positions of the eyes are accurately positioned, and the positions of the eyes on the last frame are replaced by the new positions of the eyes; whether the eyes of the driver are opened or closed is judged, and according to the ratio of the number of closed eye frames within unit time, whether the driver is in the fatigue drive state or not is judged; if the driver is in the fatigue drive state, an alarming reminding is conducted or a real-time video of the driver in the fatigue drive state is sent to a remote server, and a remote order is received. The fatigue drive detecting method based on the eye features has the advantages that the monitoring accuracy is high, the leak detection and false detection rate is low, the environmental influence is small, the speed is high, and the cost is low.
Owner:ANHUI TSINGLINK INFORMATION TECH

Wireless idle brake control system and control method for railway wagon

The invention discloses a wireless idle brake control system and control method for a railway wagon. The control system comprises a locomotive brake control system and a vehicle brake control system; the locomotive brake control system comprises an operator, a display screen and a control module; the vehicle brake control system comprises an electric control device and an execution module; the control module is communicated with an electric control device of each vehicle by a wireless ad hoc network; the control module and the electric control module of each vehicle are nodes of the wireless ad hoc network. By using the wireless ad hoc network technology, in the operation of a railway wagon train, a brake release signal becomes a wireless network signal and is transmitted to the rear vehicles, and the transmission speed is improved, so the rear vehicles act at the time as consistent as possible, the longitudinal force in the brake process of the train is reduced, the impact among the vehicles is reduced, a bus cable does not need to be arranged on the train due to the wireless signal transmission mode, the operation that stations are arranged along the railway line as relay points is not needed, and the influence on the environment of the railway line is smaller.
Owner:MEISHAN CRRC BRAKE SCI & TECH CO LTD
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