121results about How to "Reduce stress damage" patented technology

The invention discloses an anchored roadbed widening method, which belongs to the technical field of road construction. The anchored roadbed widening method comprises the following steps of: firstly performing slope cutting on an old roadbed slope, then excavating a step on the old roadbed slope from the ground, obliquely drilling an anchorage hole into an old roadbed at the joint of the vertical plane of the step and the horizontal plane, placing a steel bar into the anchorage hole, and casting the steel bar and the old roadbed into a whole by pouring cement grout; laying a new roadbed in layers, rolling, flatly laying a geogrid on the step of the old roadbed when the new roadbed is filled to be aligned with the step of the old roadbed provided with the anchorage drilled hole, connecting a transverse rib of the geogrid with an end hook which is bent upwards of the exposed part of the steel bar, tensing the geogrid, fixing with the lower layer of a soil body, and finally filling soil on the geogrid and rolling. According to the anchored roadbed widening method disclosed by the invention, an anchor rod technology is used for reinforcing the old roadbed slope, the geogrid and the old roadbed are connected into a whole, the geogrid can be prevented from sliding on the step of the old roadbed, the stability of the new roadbed and the old roadbed is improved, and non-uniform sedimentation can be effectively controlled.

The invention relates to an application of ginsenoside Rg 1 for treating/preventing Alzheimer disease, and provides new use of ginsenoside Rg 1 in treating/preventing Alzheimer disease caused by A beta 1-42 induced neurotoxic effect. This provided Chinese medicinal monomer of ginsenoside Rg 1 has the following functions: protecting cytochondriome and reducing neuron apoptosis through relieving oligo-A beta 1-42 induced neuron stress injury, relieving inhibiting effect of A beta 1-42 on PKA-CREB signal passage, contributing to form long-term potentiation, and improving memory, thereby providing direct powerful experimental foundation and theoretical basis for ginsenoside Rg 1 in treating Alzheimer disease, and has high scientific and originality, and application value.

The invention discloses a flexible substrate, a production method, a flexible display device and an electronic device. The flexible substrate comprises a substrate body, a first flexible material layer arranged on the substrate body, a metal wire arranged on the first flexible material layer and a second flexible material layer covering the first flexible material layer and the metal wire. The flexible substrate also comprises multiple island regions and island connection regions, wherein the metal wire is arranged in the island connection regions and extend into the island regions. Accordingto the flexible substrate, the metal wire is arranged in the flexible substrate body with better tensile properties to relieve cracking or fracturing in the prior art, meanwhile, shear stress generated during warping deformation of the flexible substrate is reduced, and stress damage of the metal wire in the multidirectional folding and stretching process is reduced. Therefore, the tolerance of the flexible display device or the electronic device to device deformation is improved, and accordingly the yield of a product is increased.

The invention provides a method for controlling a load-shedding working condition of a supercritical unit. The method comprises the following steps of: when the load-shedding working condition is detected, starting an ignition system and operating a set quantity of powdering systems; reducing the total coal quantity of a boiler to rated fuel quantity for maintaining pressure and combustion stability, and supplying water of which the quantity corresponds to the total coal quantity; and opening a high-pressure bypass and a low-pressure bypass, adjusting the openness of the high-pressure bypass and the openness of the low-pressure bypass according to a unit load, and controlling the pressure of the boiler to return to a normal state. Moreover, the invention also provides a system corresponding to the method. By the method and the system for controlling the load-shedding working condition of the supercritical unit, when the load-shedding working condition of a generator unit occurs, steam in the boiler is scientifically and reasonably discharged by bypass control, the boiler can safely and stably operate, stress damage to the metal of the unit is reduced, and safety in power supplying of a power grid is ensured.

The invention belongs to a quick-response leakproof high-temperature thermocouple, which consists of a junction box, a protective casing and a temperature measurement element. The protective casing consists of an upper protective casing and a lower protective casing in coaxial arrangement; the upper end of the upper protective casing is fixedly arranged on the junction box; and the temperature measurement element is arranged in the protective casing coaxially, and a software wire at the upper end of the temperature measurement element is fixed on the junction box. The quick-response leakproof high-temperature thermocouple is characterized in that: an open reinforced tube is fixedly arranged at the lower end of the lower protective casing coaxially; and the lower end of the temperature measurement element is arranged in the reinforced tube out of the protective casing. The quick-response leakproof high-temperature thermocouple has simple structure, scientific and reasonable design, short response time in measurement, convenient replacement of a measurement core, high measurement accuracy and relatively high safety.

The invention relates to a method for assembling an underwater copper alloy perforated mesh of a pasture type shallow sea fence farming facility. Basic components include standard assemblies of copper alloy perforated mesh plates with equilateral triangular profile and standard assemblies of copper alloy perforated mesh plates with right angled triangular profile. Assembly of standard assemblies of copper alloy perforated mesh plates is completed through ultrahigh molecular weight polyethylene extruded profiled lath connecting pieces and ultrahigh molecular weight polyethylene injection moulded corner-end connecting pieces. After the copper alloy perforated mesh plates are assembled, the copper alloy perforated mesh plates are hinged to reinforced concrete piles via endless tube section assembly parts prefabricated on the reinforced concrete pillar and ultrahigh molecular weight polyethylene bars. The method prevents adhesion of marine fouling organisms and retains excellent seawater flowing.

The invention discloses a four-level food grinding smashing high speed blender. The blender comprises a base, an electric heater, a dry burning resistance electrode, a temperature sensor, a rotary shaft, a cup body, a cup cover, a motor and a four-level grinding smashing assembly, and the bottom of the cup body is arranged on the base; an up-down through ladder hole is formed in the center which is located at a placing groove and is of the base, a main shaft is in transmission connection with the lower end of the rotary shaft through a coupler, the ladder hole extends upward and is located atthe upper portion of the ladder hole, the rotary shaft is rotatably connected with the inner wall of the ladder hole through a bearing assembly, a sealing disc sleeves the rotary shaft and is arrangedon the upper portion of the ladder hole, and an end cover used for limiting the axial position of the bearing assembly is arranged at the bottom of the ladder hole; the electric heater, the dry burning resistance electrode and the temperature sensor are all arranged at the bottom of the cup body, and the four-level grinding smashing assembly is fixedly arranged on the upper end portion of the rotary shaft. The four-level food grinding smashing high speed blender has the advantages that the blender is reasonable in design and compact in structure, the grinding and smashing effect is good through four-level high speed rotating cutters, better damping effect is achieved, the stability is strong, and the noise is low.

The invention relates to an anticreeper mounting base for a low-floor rail vehicle. The anticreeper mounting base is of a box structure; a vehicle hook mounting joint and/or a driver cab mounting port and/or an anticreeper mounting port is arranged on the mounting base, the vehicle hook mounting joint is fixedly connected with a vehicle hook mounting base, the driver cab mounting port is fixedly connected with a driver cab vehicle body, and the anticreeper mounting port is used for mounting an anticreeping energy absorbing element. The anticreeper mounting base has the advantages that the structure is simple, the occupation space of the whole mounting base is small, and the installation requirement of the narrow space of a chassis of the low-floor rail vehicle is met; at the premises of guaranteeing the structure rigidity and connecting strength of the mounting base, the maximum light-weight design is realized, and the higher light-weight requirement of the vehicle is met.

The invention discloses a surface cover of a door fingerprint lock of a manager room. The surface cover of the door fingerprint lock of the manager room comprises a lock cover body, wherein a window is formed in the outer surface of the lock cover body, and fingerprints can penetrate through the window. The surface cover of the door fingerprint lock of the manager room further comprises a gear reducer and a cover plate which is used for covering the window in an overturned mode, wherein the gear reducer comprises a box body and a gear train installed in the box body, the output end of the gear train is connected with the cover plate, a driving gear which extends out of the box body is arranged at the output end of the gear train, and is installed on an output shaft of the gear train, a blind hole is formed in the output shaft, a notch is formed in an inner hole, corresponding to the blind hole, of the driving gear, a spring is arranged in the blind hole, a clamping ball is clamped between the spring and the notch, one end of the clamping ball extends into the blind hole, and the other end of the clamping ball extends into the notch. The surface cover of the door fingerprint lock of the manager room is simple in structure, capable of preventing overload, small in size, low in cost and beneficial to installation and use.

The invention relates to the technical field of cell culture and in particular relates to an oocyte in-vitro maturation culture solution added with rosmarinic acid and application thereof. The in-vitro maturation culture solution is characterized by being prepared from a component rosmarinic acid; the concentration range of the rosmarinic acid is 2muM to 200muM. According to the oocyte in-vitro maturation culture solution provided by the invention, the rosmarinic acid is added into a pig oocyte maturation culture solution and is matched with the synergistic effect of other components, so thatthe maturation quality of pig oocytes is improved and the oocyte in-vitro maturation culture solution has a good promotion effect on pig embryo development. A result shows that the in-vitro maturationculture solution provided by the invention can be used for improving the anti-oxidization capability of the oocytes and the rosmarinic acid with the suitable concentration can be used for effectivelyimproving the oocyte maturation quality, so that the in-vitro development potential of the pig oocytes is improved. The in-vitro maturation culture solution is simple to prepare and convenient to operate and has a relatively great application prospect.

The invention belongs to the production process for diodes, particularly relates to a process for manufacturing a photovoltaic bypass Schottky diode. The process is characterized in that through improving the compositions of a black-filled compound adopted in the process of casting and mould pressing, improving the production process for schottky diodes, carrying out tempering and diameter increase on leads and carrying out upsetting processing on the ends of the leads, the stress in the lead is reduced, the heat dissipation capacity of the lead is improved, and the surge current impact resistant capacity of the diode is improved; and because the black-filled compound with a high heat conductivity and a low stress is adopted, the heat-conducting property of the schottky diode is improved, and the surface temperature of the diode is reduced, so that the schottky diode can meet the requirements for being used in junction boxes.

The invention provides an HDPE composite material for a snowboard. The HDPE composite material for the snowboard comprises, by weight, 50-65 parts of HDPE, 10-15 parts of silicon carbide fibers, 8-12 parts of CPE, 8-10 parts of fire retardant, 0.5-1 part of antioxygen, 0.5-1 part of ultraviolet light absorber, 0.9-1.4 parts of antistatic agent, 1-2 parts of light screener, 3-8 parts of flexibilizer, 0.7-1.2 parts of dispersing agent, 0.1-0.6 part of stabilizer and 0.1-0.3 part of coupling agent. The invention further provides a preparation method of the HDPE composite material. The HDPE composite material for the snowboard has good creep resistance and environmental cracking resistance.

The invention discloses a three-axis acceleration sensor which comprises an MEMS accelerated speed chip, a signal processing chip and a substrate. The MEMS accelerated speed chip comprises a cover body, a micro mechanical system and a circuit substrate, and the micro mechanical system is composed of an X axis accelerated speed induction area, a Y axis accelerated speed induction area and a Z axis accelerated speed induction area; the Y axis accelerated speed induction area comprises an H-shaped motion piece with two through holes in the Y direction, two motion electrodes in the Y direction and two fixed electrodes in the Y direction; the Z axis accelerated speed induction area comprises quality strip bars and a supporting shaft; the lower surface of the signal processing chip is pasted with the surface of the cover body of the MEMS accelerated speed chip through a first insulated adhesive layer, the circuit substrate of the MEMS accelerated speed chip is pasted with part of the substrate area through a second insulated adhesive layer, a first metal wire is arranged between a chip welding point and a signal inputting welding point in a spanning mode, and a second metal wire is arranged between a signal output welding point and a substrate welding point in a spanning mode. The three-axis acceleration sensor improves the reliability of appliances and effectively reduces stress damage to the chip by external force.

The invention provides a raw gas riser pipe heat exchange device for a coking furnace. The device comprises an inner barrel, a middle barrel, a heat exchange assembly, an outer barrel and a heat insulation piece, wherein the inner barrel is provided with a smoke flue penetrating through the inner barrel, and the smoke flue is provided with an inlet located in the lower end of the inner barrel and an outlet located in the upper end of the inner barrel; the heat exchange assembly is arranged between the inner barrel and the middle barrel, gaps are reserved between the heat exchange assembly and the inner barrel as well as between the heat exchange assembly and the middle barrel, and a fluid outlet and a fluid inlet are formed in the upper end and the lower end respectively; the heat insulation piece is arranged between the middle barrel and the outer barrel. According to the raw gas riser pipe heat exchange device for the coking furnace, the heat exchange assembly is arranged between the inner barrel and the middle barrel, and the gaps are reserved between the heat exchange assembly and the inner barrel as well as between the heat exchange assembly and the middle barrel, that is, the heat insulation assembly is independent of the inner barrel and the middle barrel, is suspended between the inner barrel and the middle barrel and is not contacted with the inner barrel and the middle barrel, so that the influence of stress change of the barrels under various thermal-state working conditions on the heat exchange assembly is reduced; the heat insulation piece has a heat insulation effect on the device, the heat exchange efficiency of the device is improved, and the environmental influence of heat produced by the raw gas is reduced.

The invention discloses a capacitive MEMS acceleration sensor which comprises an MEMS acceleration chip, a signal processing chip and a substrate. The MEMS acceleration chip comprises a cover body, a micromechanical system and a circuit substrate. The micromechanical system is composed of an X-axis acceleration induction area, a Y-axis acceleration induction area and a Z-axis acceleration induction area. The Y-axis acceleration induction area comprises a Y-direction 'H'-shaped moving sheet provided with two through holes, two Y-direction moving electrodes and two Y-direction fixed electrodes. The Z-axis acceleration induction area comprises a mass block and a supporting shaft used for supporting the center of the mass block. The lower surface of the circuit substrate is bonded with a partial area on the upper surface of the signal processing chip through a first insulation adhesive layer. The upper surface of the circuit substrate is provided with a plurality of chip welding points. The upper surface of the substrate is provided with a plurality of substrate welding points which are distributed in the edge areas on the two sides of the substrate. The upper surface of the signal processing chip is provided with signal input welding points and signal output welding points respectively. The capacitive MEMS acceleration sensor improves the reliability of a device and effectively reduces stress damage to the chips by external force.

The invention discloses a rotating arm type axle box force measuring device and a method thereof. According to distribution positions of loads exerted on rotating arm type axle boxes, the normative testing method is specified for vertical loads exerted on shock absorber bases and spring bases and vertical, transverse and longitudinal loads exerted on elastic nodes, so that actual and reliable testing parameters are provided for scientific judgment and measurement of the magnitude and directions of loads exerted on rotating arm type axle boxes. The rotating arm type axle box force measuring method comprises the steps of adopting the force measuring device comprising a loading cross beam and a simulation structure to install four rotating arm type axle boxes on the simulation structure according to actual usage positions; connecting a pair of vertical actuating cylinders between the simulation structure and the loading cross beam in the vertical direction, and connecting a transverse actuating cylinder and a longitudinal actuating cylinder respectively on horizontal side portions of the simulation structure; and connecting a first sensor between a vertical shock absorber and the simulation structure, connecting a second sensor between an axle box spring and the simulation structure, and connecting a third sensor between a node base and the simulation structure.