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486results about How to "Reduce distress" patented technology

Brain part MRI image segmentation method

The invention provides a brain part MRI image segmentation method. The brain part MRI image segmentation method is characterized in that a gray level image of a brain part MRI image to be segmented can be acquired; the gray values of different pixel points of the brain part MRI image can be used as the clustering centers, which are used to form the clustering center sets as the particles, and the optimization of the clustering center sets can be carried out by adopting the particle swarm optimization algorithm; every pixel point of the brain part MRI image belongs to the category having the maximum membership, and then the gray values of the pixel points of the same category are equal to the same gray value, and the brain part MRI image segmentation can be completed. The brain part MRI image segmentation method is advantageous in that according to the chaotic characteristic and the logic self-mapping function, the uniformly-distributed particle swarms can be initialized by adopting the logic self-mapping function, and then the quality of the initial solution, the stability of the PSO algorithm, the speed and the precision of the image segmentation can be improved; the chaotic searching can be carried out, when the particles are in the premature convergence state, and the premature convergence phenomenon caused by the stagnated state of the particles during the iteration process can be prevented, and the optimal solution in the range of the whole situation can be realized, and then the speed and the precision of the image segmentation can be improved.
Owner:NORTHEASTERN UNIV LIAONING

Optimized-extreme-learning-machine-based detection system and method for blast furnace fault

The invention, which belongs to the technical field of blast furnace fault detection, provides an optimized-extreme-learning-machine-based detection system and method for a blast furnace fault. On the basis of an artificial bee colony (ABC) algorithm, an input weight and an implicit strata threshold value in an extreme learning machine (ELM) are optimized, thereby establishing a reasonable and effective classification model; on the basis of Tent mapping, an initial colony with uniform distribution is generated, thereby improving the quality of an initial solution and enhancing stability of the method; good balancing between global searching and local searching is realized by using an adaptive searching strategy; and jumping out of a local optimal solution is realized by using a Tent chaotic local searching strategy. According to the invention, the convergence speed and the optimizing searching precision of the ABC algorithm are improved; the classification precision of the blast furnace fault detection is enhanced; the probability of generating a new solution is increased; involvement in a local optimal solution is avoided; the rapid evolution direction of the algorithm is guaranteed; and the global searching capability is guaranteed and the local searching capability of the algorithm is also improved to a certain extent.
Owner:NORTHEASTERN UNIV LIAONING

Emergency brake system based on brain-computer interface technique

The invention provides an emergency brake system based on a brain-computer interface technique and relates to an automotive emergency brake system. The emergency brake system is provided with a brain wave and muscle tone collection device and an automobile-assisted emergency brake processing device, wherein the brain wave and muscle tone collection device is provided with an electrode cap, electric signal amplifying and processing circuits, an MCU (Micro Controller Unit) microprocessor, a wireless emitting module and a muscle tone sensor; the automobile-assisted emergency brake processing device is provided with a wireless receiving module, a main controller, an air bag device, an automobile braking module, an accelerator shielding module, an automobile speed indicator, a distance measurement instrument, a pedaling accelerometer and an overall vehicle accelerometer. According to the emergency brake system, the rapid emergency brake can be realized, the thought of a human body is faster than actions of the human body, and the little time difference tends to decide the severity of an accident during the high-speed movement of an automobile; improper operations of a driver can be assisted to be corrected; air bags can be popped out when the accelerated speed exceeds the bearing range of the human body during the braking of the overall automobile.
Owner:XIAMEN UNIV

Intelligent fiber distribution system with function of remote control, and control method for intelligent fiber distribution system

The invention relates to an intelligent fiber distribution system with a function of remote control, and a control method for the intelligent fiber distribution system. The system comprises a near-end control platform and a far-end fiber distribution box. The near-end control platform carries out the signal control of the far-end fiber distribution box in a wireless or wired communication manner. The system is characterized in that the near-end control platform comprises a fiber distribution state management module and a near-end communication module; the far-end fiber distribution box comprises a mobile control unit, a user port fiber connection seat, a fiber port positioning hole, a mechanical arm assembly, a rebound-type or sliding-type fiber storage assembly, and a fiber connector; the mobile control unit receives signal control information which is transmitted by the near-end control platform in a wireless or wired communication mode; the mobile control unit is used for operating the clamping and moving operation of the mechanical arm assembly, thereby enabling the fiber connector and the fiber storage assembly to cooperate and be connected with each other for operation; and the connection or disconnection of a fiber in a box with a fiber outside the box can be completed through one-time fiber jump. The system can meet the demands of the miniaturization of a fiber distribution device.
Owner:南京丰泰通信技术股份有限公司

Approach electric safety early warning device for construction machinery

The invention discloses an approach electric safety early warning device for a construction machinery, which, in the structure, comprises an electromagnetic radiation measurement device, a camera device, an analog-to-digital converter, ultrasonic radars, a bottom plate, data input and output connectors, a USB interface, a spring movable supporting foot, a start button, a host, a display screen, asingle chip microcomputer controller, an alarm and a data line, wherein the ultrasonic radars transmit and receive ultrasonic signals through a vibration coil and a piezoelectric ceramic vibrator, thesignals are inputted to the single chip microcomputer controller of the host, the alarm carries out sound-light alarming when a boom approaches an obstacle for a certain distance during an operationprocess, the camera device is matched for use to intuitively inform a driver of the obstacle condition around the boom in an image mode, troubles caused by blind area visiting in front and back when the driver lifts the boom are relieved, the driver is helped to eliminate defects of visual field dead angles and blurred vision, the electromagnetic radiation measurement device can measure the electromagnetic radiation value in the area, and the alarm gives an alarm when the boom approaches a high-voltage area.
Owner:江涛

Sliding window with automatic dust removal function

The invention belongs to the field of a window, and particularly relates to a sliding window with an automatic dust removal function. The sliding window comprises a window frame and a window body, wherein a handle is fixedly connected onto the side wall of the window body; a first sliding groove and a second sliding groove are respectively formed in the inner top surface and the inner bottom surface of the window frame; the upper end lower ends of the window body are respectively positioned in the first sliding groove and the second sliding groove; a sliding rod in horizontal arrangement is fixedly connected in the second sliding groove; the lower part of the window body is provided with a gas suction cavity; the sliding rod is arranged in a way of penetrating through the air suction cavity; the sliding rod and the air suction cavity are glidingly connected in a sealed way; a piston block is fixedly sleeved and connected onto the sliding rod; the piston block and the air suction cavityare glidingly connected in a sealed way; an air suction opening communicated with the outside is formed in each of the left and right side walls of the air suction cavity; a first one-way valve is fixedly connected in the air suction opening; an exhaust cavity is formed in the upper part of the window body. In the use process, the dust in the sliding groove can be treated; the influence on the normal use of the sliding window due to the long-time accumulation of the dust can be avoided.
Owner:LIXIN FUYA GAUZE CO LTD

Anti-interference electrochemical detection sensor and manufacturing method therefor

The invention relates to an anti-interference electrochemical detection sensor and a manufacturing method therefor. The sensor has a reaction cell and an injection flow channel, and the injection flowchannel is connected to the reaction cell. A reaction electrode and a reaction reagent layer disposed on the detection electrode for reacting with the target detection object are disposed in the reaction cell, and the reaction reagent layer is exposed in the reaction cell. An auxiliary electrode is disposed in the injection flow channel, and the interior and/or surface of the auxiliary electrodecontains an anti-interference substance capable of reacting with an interference substance in the sample to be tested. The anti-interference electrochemical detection sensor further has an electrode connector for connecting to an external detecting device, and the electrode connector is electrically connected to the detection electrode. The anti-interference electrochemical detection sensor is provided with an auxiliary electrode in the injection flow channel in the front stage of the reaction cell, and the auxiliary electrode contains an anti-interference substance capable of reacting with the interference substance. Therefore, during the detection, the interference substances in the sample solution can be removed, the influence of the interference substances on the detection results is eliminated, and the accuracy and reliability of the detection results are ensured.
Owner:GUANGZHOU WONDFO BIOTECH
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