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40results about How to "Reduce technical difficulties" patented technology

Construction method used after tunnel integral type collapse

ActiveCN107165652AStable supportAvoid the disadvantages of inoperabilityUnderground chambersTunnel liningStructural engineeringImpact area
The invention provides a construction method used for tunnel integral type collapse. A collapsed tunnel is divided into two sections in the tunneling direction, the first section is an impacting area, and the second section is a collapsing area; a first support is complete in the impacting area, only a tunnel face collapsing part is subjected to treatment, and tunnel surrounding rocks are not subjected to treatment; and part of a first support in the collapsing area is damaged, and tunnel surrounding rocks and a tunnel face collapsing part are both subjected to treatment. Compared with the prior art, the construction method used for tunnel integral type collapse has the beneficial effects that (1) advanced small guiding pipes at the top of a tunnel and I-shaped steel arching frames are ingeniously combined, so that the advanced small guiding pipes form a structure similar to a pipe shed, and the supporting capacity is strengthened; and (2) collapsing part small guiding pipes are densely hit on tunnel faces to enable the tunnel face collapsing parts to be concreted, the collapsing part small guiding pipes and surrounding rock soil form a stone body, and thus the capacity of resisting the tunnel top collapsing load and impacting load is strengthened.
Owner:DATANG LINZHOU THERMAL POWER CO LTD

Parkinson's disease monitoring method and device and storage medium

The invention provides a Parkinson's disease monitoring method and device and a storage medium. The Parkinson's disease monitoring method comprises the steps of acquiring a video picture from pre-installed acquisition equipment; obtaining a monitoring user picture according to the video picture; identifying human body contours of the monitored user pictures to obtain a plurality of monitored userhuman body contours, and obtaining action behavior information according to the plurality of monitored user human body contours, the action behavior information comprising state parameters in a staticstate and state parameters in a motion state; and comparing the state parameters in the static state and the state parameters in the motion state with corresponding preset action thresholds respectively, judging whether the user is in a suspected illness state or not according to a comparison result, and if so, sending a judgment result to a specified terminal. According to the Parkinson's disease monitoring method, the technical difficulties are reduced, meanwhile, a user can be monitored in real time, and information about whether suspected disease occurs or not can be obtained through automatic analysis, and related personnel are informed in time to perform prevention and attention.
Owner:AFFILIATED HOSPITAL OF GUILIN MEDICAL UNIV

Electric mould clamping mechanism of injection moulding machine

The invention discloses an electric mould clamping mechanism of an injection moulding machine, and relates to the technical field of injection moulding machine manufacturing. The electric mould clamping mechanism comprises a servomotor, a ball screw, a bearing seat, a crosshead, a screw seat, a tail plate and a speed reducer, wherein the speed reducer is mounted on the end surface of the outer side of the tail plate; the servomotor is mounted on the speed reducer; the front end of the servomotor extends into the back end of the speed reducer and is directly, rigidly and fixedly connected with the speed reducer; the bearing seat is mounted in the middle of the tail plate; the screw seat is mounted in the middle of the crosshead; one end of the ball screw is positioned in the bearing seat, and the other end of the ball screw is mounted in the screw seat on the crosshead; an output shaft of the speed reducer is connected with the ball screw positioned at one end of the bearing seat; the crosshead is guided by four pull rods; and the planetary speed reducer is driven through the servomotor to drive the ball screw for driving the crosshead to move, so that the mould opening and closing movement of the injection moulding machine is realized. The electric mould clamping mechanism has the advantages that the structure is relatively simple, and the mechanism is convenient to mount, long in service life, relatively high in control precision and the like.
Owner:LIUZHOU KAIYU PLASTIC INJECTION MACHINERY CO LTD

Internet of things system

The invention relates to an Internet of things system. The Internet of things system comprises an LTE video device, a center management server, a terminal and a hardware access device. The hardware access device comprises a communication module and an electronic label; the communication module is used for establishing communication connection between the LTE video device and the center management server and transmitting the electronic label to the center management server; after the communication connection is established, the center management server, according to the electronic label, generates configuration information, thus, the process of authenticating the LTE video device through the center management server is completed, and the LTE video device is added to the Internet of things system; and the terminal receives the configurations information and controls the LTE video device. According to the invention, by use of generalization and platform ideas, the technical difficulty of hardware manufacturers in accessing the LTE video device into the Internet of things system is substantially reduced, the LTE video device is added to the Internet of things system through a registration mode, and thus the terminal of the Internet of things can realize control of the LTE video device.
Owner:HANGZHOU EASTCOM SOFTWARE TECH

Color film substrate, manufacturing method thereof and display panel

The invention discloses a color film substrate, a manufacturing method thereof and a display panel. The color film substrate is sequentially provided with a first substrate, a color resistance layer,a flat layer and a quantum dot layer in a stacked mode in the first direction. The color resistance layer is provided with a plurality of sub-color resistance layers with different colors along a second direction, and a black matrix is not arranged between every two adjacent sub-color resistance layers; the quantum dot layer is divided into a plurality of quantum dot areas in the second direction,a dike part is arranged between every two adjacent quantum dot areas, the dike parts are right opposite to every two adjacent color resistance layers, and the color of the dike parts is black. According to the invention, the light loss in the display panel is reduced, and meanwhile, the technical difficulties and the manufacturing cost are also reduced; furthermore, the dike parts are arranged between every two adjacent quantum dot areas, the dike parts are black, light leakage between the light-emitting areas can be prevented, the preset length of the dike parts in the first direction is thefirst length L, the preset length range of the first length L is that L is larger than 6 micrometers, and the thickness printing requirement of the quantum dot layer is met.
Owner:SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD

Multi-functional rubber pad limiting device

The invention belongs to the technical field of building construction, in particular to a multi-functional rubber pad limiting device. Left and right sides between a bridge surface and a bridge pier are respectively equipped with two rubber pads. Left and right sides between a bridge surface and a bridge pier are respectively equipped with two rubber pads. Two sides of each rubber pad are respectively equipped with six support rods. Bearings vertically support rod bodies of the support rods. At the center between through holes of two support rods, a roller is arranged. Limiting boards are arranged on two sides of each rubber pad. Bolts vertically penetrate through the limiting boards and the top surface of the bridge pier. Multiple limiting ramps are arranged on the surfaces of the limiting boards at equal intervals and extend into the bridge pier. When an earthquake happens, longitudinal waves deliver energy to the bridge pier. The bridge pier then delivers energy to the rubber pads.Slight deformation is generated on the rubber pads and energy is consumed. Transverse waves transfer energy to the bridge surface and the bridge pier. Relative displacement is generated between the bridge surface and the bridge pier. The limiting ramps on surfaces of the limiting boards produce relative displacement in order to avoid great displacement and prevent the bridge surface from falling off.
Owner:SHENYANG JIANZHU UNIVERSITY

Foundation pit support system with firstly-supporting and secondly-digging construction method piles combined with inclined piles

The invention relates to a foundation pit support system with piles combined with inclined piles in a supporting-before-digging construction method, which comprises two rows of water-soil mixing piles, H-shaped steel inserted in the piles, coping ring beams and connecting beams of front and rear rows of piles, an upper inclined inclined pile and a lower inclined inclined pile, the inclined pile can be H-shaped steel, a steel pipe, a hollow square pile, a hollow pipe pile, a solid square pile, a water stop groove square pile, a water stop groove circular pile and the like; the deep foundation pit supporting type means that the supporting type can be applied to deep foundation pits of two underground layers. The raking piles are embedded in the coping ring beam, and when the raking pile bodies are H-shaped steel or steel pipes, pre-embedded steel plates can be arranged on the coping ring beam to serve as welding connection measures; meanwhile, in order to prevent the inclined piles from passing through the intersection point of the floor slab and the outer wall in the basement, the vertical angles of the inclined piles can be adjusted within 15-50 degrees; the inclined pile can be pressed into a guide hole of the high-pressure jet grouting pile through a special construction machine and then inserted into the guide hole. The invention has the advantages that the portal frame structure is H-shaped steel, the inclined piles can be directly used and can be bought in the market, and the portal frame is convenient and fast to construct, low in manufacturing cost, energy-saving, environment-friendly, few in technical difficulty and convenient to popularize; meanwhile, the structure has multiple functions of reinforcement, skid resistance, soil retaining and water stopping, and can be used for deep foundation pit supporting of two underground layers.
Owner:城地建设集团有限公司 +2

Preparation method and application of fiber with high ion exchange volume and high strength

The invention discloses fluororesin with high ion exchange volume and high strength, which is formed by copolymerizing tetrafluoroethylene, ethylene and one or more monomers having the structure of the general formula (I) (disclosed in the specification), wherein in the general formula (I), a is equal to 0-5, b is equal to 0-5, the summation of a and b is not equal to 0, and n is equal to 0-2; Rfand Rf' are selected from -F, -Cl, -Br or -CzF2z, and z is equal to 1-5; A is -PO(OR1)(OR2); and R1 and R2 are selected from -H, -CmH2m+1, -Ph and substituted benzene, and m is equal to 1-10. The molecular weight of the fluororesin with high ion exchange volume and high strength is 200-1,500 thousands. Melt spinning is carried out on the fluorine-containing polymer having high ion exchange function and high mechanical strength by adopting corrosion resistant alloy melt spinning equipment to prepare polymer fibers, and then the fibers are woven into a fiber net having the ion exchange functionby using a weaving technology. The fiber net can be used as an enhancement net material of a proton exchange membrane and a chlor-alkali ion membrane to achieve the purpose of simultaneously improving the strength of the membrane materials, increasing the adhesion force of the fibers and the membranes and improving the ion exchange capacity.
Owner:SHANDONG DONGYUE WEILAI HYDROGEN ENERGY MATERIAL CO LTD

A method for installation, operation and maintenance of a stabilized pressure pilot drive valve

The invention discloses an installation and operation and maintenance method of a pressure-stabilizing pilot drive valve. The pressure-stabilizing pilot drive valve comprises a hexagonal upper valve body, an upper pressing plate, a diaphragm, a lower pressing plate, a stand column, a first through hole, a valve plate, a valve rod, a lower guide frame, a second through hole, an upper guide frame, alower valve body, a lower spring and an air cylinder, wherein the air cylinder comprises a left cavity, a middle cavity, a right cavity, an air inlet, a pressure regulating port, a pressure relief port, a right port, a left piston, an upper spring, a right piston, a limiting column, a hemisphere cover, a pivot and a connecting plate, and a containing groove is formed in the connecting plate. Theinstallation and operation and maintenance method comprises a mounting method, a testing method, and an operation method, wherein the testing method comprises the following steps that the pressure ofthe air inlet end of the valve is improved, the pressure above the diaphragm is improved, the valve plate is opened, the pressure of the air outlet end of the valve is tested, when the pressure of theair outlet end meets a preset value, after the pressure of the air inlet end is maintained for thirty minutes, the integrity of the diaphragm is detected, so that the pressure-bearing capability of the diaphragm under extreme pressure is tested.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Installation and operation and maintenance method of pressure-stabilizing pilot drive valve

The invention discloses an installation and operation and maintenance method of a pressure-stabilizing pilot drive valve. The pressure-stabilizing pilot drive valve comprises a hexagonal upper valve body, an upper pressing plate, a diaphragm, a lower pressing plate, a stand column, a first through hole, a valve plate, a valve rod, a lower guide frame, a second through hole, an upper guide frame, alower valve body, a lower spring and an air cylinder, wherein the air cylinder comprises a left cavity, a middle cavity, a right cavity, an air inlet, a pressure regulating port, a pressure relief port, a right port, a left piston, an upper spring, a right piston, a limiting column, a hemisphere cover, a pivot and a connecting plate, and a containing groove is formed in the connecting plate. Theinstallation and operation and maintenance method comprises a mounting method, a testing method, and an operation method, wherein the testing method comprises the following steps that the pressure ofthe air inlet end of the valve is improved, the pressure above the diaphragm is improved, the valve plate is opened, the pressure of the air outlet end of the valve is tested, when the pressure of theair outlet end meets a preset value, after the pressure of the air inlet end is maintained for thirty minutes, the integrity of the diaphragm is detected, so that the pressure-bearing capability of the diaphragm under extreme pressure is tested.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

A kind of manufacturing method of pcb board

The invention discloses a manufacturing method for a printed circuit board (PCB) and the PCB. The method comprises the steps that a first window is formed in first core plates and first resin plates, wherein the first core plates and the first resin plates form a lamination, and the shape and the size of the first window are matched with the shape and the size of a heat dissipation copper block; a second window is formed in second core plates and second resin plates between the second core plates and the lamination, wherein a daughter plate is to be inserted into the second core plates, and resin blocks at the position of the second window of the second resin plates are enabled to be connected with one edge of the second window of the second resin plates, wherein the shape and the size of the second window are matched with the shape and the size of the daughter plate; sol dissolving is conducted on the lamination, the second core plates and the second resin plates; the resin blocks at the position of the second window of the second resin plate are turned over, and the heat dissipation copper block is embedded into the first window in the lamination through the second window; the resin blocks at the position of the second window of the second resin plate are dissolved into the second window of the second resin plates; and the daughter plate is embedded into the second window of the second core plates.
Owner:NEW FOUNDER HLDG DEV LLC +1
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