Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

1758results about How to "Free from damage" patented technology

Charging pile group energy management method

The invention relates to the technical field of power management, in particular to a charging pile group energy management method, which comprises the following steps: S1, predicting the power demand of each charging pile in a short period and the available amount of renewable energy; s2, adjusting the charging power of each charging pile through a dynamic allocation algorithm; s3, encouraging a user to charge in an off-peak period based on a preset pricing algorithm; s4, predicting a user charging demand mode; s5, monitoring electric energy quality in a charging process in real time, and automatically adjusting parameters of charging equipment by using a preset electric energy adjusting technology; and S6, automatically activating a preset standby energy supply scheme under the emergency condition of the power grid fault. According to the invention, energy distribution is optimized through real-time monitoring and intelligent adjustment of the charging strategy, the power grid efficiency is improved, the cost is reduced, and the continuity and safety of the charging service are ensured through the standby energy system, so that the operation efficiency of the charging infrastructure and the user satisfaction are remarkably improved.
Owner:江西驴充充物联网科技有限公司

Air blower based on magnetic and air combination axial force balance and control method thereof

The invention relates to an air blower based on magnetic and gas combination axial force balance and a control method of the air blower, and belongs to the technical field of axial force regulation and control of air blowers. An axial air suspension bearing and an axial magnetic bearing are arranged in a main machine of the air blower, the axial magnetic bearing is connected with a magnetic bearing controller, and the magnetic bearing controller controls the axial position of a rotor by controlling the current of the axial magnetic bearing; an axial displacement sensor and a radial displacement sensor are arranged to detect the displacement of the rotor; and the main controller is used for controlling the starting and stopping of the axial magnetic bearing and the main machine based on the axial displacement and the radial displacement of the rotor, and sending out early warning. According to the magnetic and air combined axial force balance device, the axial magnetic bearing is used for providing active control force, the air bearing is used for providing passive support, the stability and reliability of a system are improved, and an important protection effect is achieved on core parts of an air blower.
Owner:SHANDONG ZHANGQIU HUADONG BLOWER

Dynamic strain testing method for surface of rotating body in electromagnetic environment

The invention provides a method for testing the dynamic strain of the surface of a rotating body in an electromagnetic environment. The method comprises the following steps: constructing a bridge by using strain gauges and acquiring dynamic characteristic data of the rotating part under actual constraint conditions; performing simulation calculation according to the dynamic characteristic data, and determining the optimal pasting position of the strain gauge; pasting a strain gauge and formulating a wiring scheme of a strain gauge wire; the strain gauge is connected with a voltage signal amplifier, the amplified signal is connected with a data acquisition system through a conductive slip ring, and the amplified strain signal is recorded and processed; acquiring strain signals in real time and taking the strain signals as test data, and performing whole-course test in a full-rotating-speed range to complete dynamic strain test on the surface of the rotating body. The system has high sensitivity, the sensitivity and the measurement precision of the system are improved through full-bridge configuration, larger output signals are provided, the full bridge can achieve temperature compensation through symmetrical circuit design, and the system has good linear output characteristics and facilitates signal processing and analysis within the strain range.
Owner:HARBIN INST OF TECH

Chip detecting and sorting equipment and method

The invention relates to the field of semiconductor detection, and discloses a chip detecting and sorting device and method.A rack is provided with a feeding and discharging gripper module, a detecting module, a transferring module and a braiding module; the transfer module comprises a first conveying line, a second conveying line, a third conveying line and a tray transfer mechanism; the detection module comprises a first detection device and a second detection device, the first detection device is used for detecting the side surface and the bottom surface of the chip, and the second detection device is used for detecting the front surface of the chip; the taping module comprises a taping mechanism, and the taping mechanism is used for taping and packaging the chip; the feeding and discharging gripper module comprises a feeding mechanism and a discharging mechanism. The feeding mechanism is used for transferring chips between the first conveying line and the first detection device. The discharging mechanism is used for transferring chips among the second conveying line, the third conveying line and the braiding mechanism. The chips are transferred through the feeding mechanism and the discharging mechanism, damage to the chips when the chips are manually moved is avoided, and the chip sorting and detecting efficiency is higher.
Owner:SHENZHEN GRAND INNOSYS CORP

Waterproof bio-based polyurethane coating and preparation process thereof

The invention relates to the field of polyurethane coating processing, in particular to a waterproof bio-based polyurethane coating and a preparation technology thereof.The waterproof bio-based polyurethane coating is prepared from, by weight, 25%-40% of castor oil polyester polyol, 15%-25% of isocyanate, 5%-10% of bio-based polybasic acid, 0.2%-0.6% of a catalyst, 0.5%-1% of a chain extender, 15%-20% of modified nanofiller, 3%-5% of a wetting agent and 1%-2% of a curing agent. By adopting the formula, the prepared waterproof bio-based polyurethane coating has good weather resistance, high and low temperature resistance, strength and waterproofness, and can be used in Tibet, Xinjiang, Inner Mongolia, Qinghai and other regions for a long time without aging, and the service life of the waterproof coating is prolonged.
Owner:GUANGDONG SANQI CHEM TECH CO LTD

CIP automatic cleaning system of oily sludge treatment equipment

The invention relates to the field of cleaning systems, in particular to a CIP automatic cleaning system of oily sludge treatment equipment. The technical problems that when an existing oil-containing sludge treatment equipment CIP automatic cleaning system cleans the oil-containing sludge treatment equipment, running of a CIP system needs to consume a large amount of water and energy, especially in the high-temperature cleaning stage, although the cleaning effect can be improved by increasing the concentration of a cleaning agent, the cleaning cost can be remarkably increased, and the cleaning effect is poor are solved. Therefore, the cleaning cost and the resource consumption are high; according to the technical scheme, the CIP automatic cleaning system of the oily sludge treatment equipment comprises a data acquisition module, a data analysis module, a strategy making module, an execution adjustment module and a cleaning module; the cleaning process is optimized through the intelligent control system, accurate detection of the equipment surface pollution degree, intelligent making of the cleaning strategy and real-time adjustment and optimization of the cleaning process can be achieved, and therefore energy consumption and water resource consumption are reduced while the cleaning effect is ensured.
Owner:NANJING MONYA CENTRIFUGE TECH DEV CO LTD

Culture medium and culture method for persistent DC-CIK cells and application of culture medium and culture method

The invention relates to a culture medium and a culture method of persistent DC-CIK cells and application of the culture medium and the culture method, and belongs to the technical field of cell culture. The invention provides a culture medium for persistent DC-CIK cells, which takes a serum-free culture medium as a solvent and comprises a recombinant human granulocyte macrophage colony stimulating factor, a recombinant human interleukin-12, a recombinant human tumor necrosis factor-alpha, a recombinant human interferon-gamma, L-cysteine, glutathione, ginseng polysaccharide and streptomycin sulfate. According to the culture medium and the culture method of the persistent DC-CIK cells, proliferation and growth of the DC-CIK cells can be promoted, and very high tumor killing activity of the DC-CIK cells can be maintained for a long time.
Owner:广东壹加再生医学研究院有限公司

LMES suspension system

The invention discloses an LMES suspension system, belongs to the field of vehicle suspensions, and aims to improve the adjustment performance of the suspensions. Comprising a hydraulic shock absorber, a spring, a linear motor and a controller. The hydraulic shock absorber comprises a piston rod and an outer barrel structure which is arranged outside the piston rod in a sleeving mode and is vertically and movably matched with the piston rod. The linear motor comprises a stator and a rotor, and the stator and the rotor are movably matched in the vertical direction. Stators of the linear motors are connected with piston rods of the hydraulic shock absorbers, and the top ends of the piston rods are connected to an upper support of the vehicle body; a rotor of the linear motor is connected with an external cylinder structure of the hydraulic shock absorber, and the bottom end of the external cylinder structure is connected to a lower support used for being installed on a wheel. And the spring is arranged between the rotor of the linear motor and the upper support. The output force of the linear motor and the damping force of the hydraulic shock absorber are overlapped to form the output force of the suspension system, compared with a traditional suspension system, the adjusting performance of the suspension system is greatly improved, and the comfort performance of a vehicle is improved.
Owner:SICHUAN NINGJIANG SHANCHUAN MACHINERY

Modularized intelligent dynamic power distribution charging pile

The invention relates to the technical field of charging piles, in particular to a modular intelligent dynamic power distribution charging pile. The invention provides a modular intelligent dynamic power distribution charging pile which comprises a charging pile body, a charging wire is fixedly connected to the charging pile body, a charging connector is installed at the movable end of the charging wire, a locking fastener is fixedly connected to the outer side of the charging connector, and a fixing frame is fixedly connected to the side, close to the charging wire, of the charging pile body. According to the invention, through the cooperation of a second rack and a notched gear, a sealing sleeve can be automatically opened when a charging connector is inserted into a charging socket, and can be automatically closed when the charging connector is pulled out, so that external wind and sand are effectively prevented from entering a charging port, and the charging port is protected from being damaged; the charging wire can be always in a suspended state, the charging connector does not make contact with the ground, abrasion is reduced, water and sand are prevented from entering the charging connector, the service life is prolonged, and applicability and durability are improved.
Owner:湖北奥利给能源服务有限公司

Automatic comprehensive detection flaw detection equipment for railway line

The invention relates to the technical field of railway line flaw detection, in particular to railway line automatic comprehensive flaw detection equipment which comprises two steel rails and a flaw detection car and further comprises a C-shaped mounting plate, a buffer assembly, a waist detection mechanism and a bottom detection mechanism. A first fixing rod is transversely arranged in the C-shaped mounting plate, fixing sleeves are slidably connected to the two ends of the first fixing rod correspondingly, and balance assemblies are arranged at the ends, away from each other, of the two fixing sleeves correspondingly. The device has the advantages that different detection assemblies are arranged for different detection areas, so that steel rail detection of different parts is more efficient and accurate, it is ensured that different types of defects can be detected, the detection period is shortened, the balance assembly and the buffer assembly cooperate with each other to enable the head detection assembly to keep a dynamic balance state, and the detection efficiency is improved. The probe is effectively protected from vibration damage, and the adaptability of the probe to the change of the steel rail and the detection stability of the probe are improved.
Owner:GUANGJUN SPECIAL ENGINEERING (SHANXI) CO LTD

Industrial personal computer with UPS power-off protection function and protection system thereof

The invention discloses an industrial personal computer with a UPS power-off protection function and a protection system thereof, and relates to the technical field of industrial personal computers, and the industrial personal computer comprises a protection case, a fixed base is installed at the bottom of the protection case, a battery is installed in the protection case, a chain type wire is arranged above the battery, and a management mainboard is arranged above the chain type wire. When the industrial personal computer runs, especially the industrial personal computer is placed in an environment with large vibration or impact, the multifunctional sliding block is driven by the fixing block to vertically press to drive the L-shaped clamping plate to horizontally extrude the fixing base, so that vibration energy can be effectively absorbed and dispersed. Through the design of the scheme, the reset springs and the rubber damping blocks in the L-shaped clamping plates are combined, and the double damping effect can be provided through the elastic effect of the springs and the buffering effect of the rubber damping blocks in the L-shaped clamping plates.
Owner:SHENZHEN YANYUE TECH CO LTD

Binding head assembly, eutectic equipment and chip mounting method

The invention relates to the technical field of eutectic, in particular to a binding head assembly, eutectic equipment and a chip mounting method.The binding head assembly comprises a driving assembly, a suction nozzle assembly and a visual assembly, and the suction nozzle assembly is arranged at the output end of the driving assembly and comprises a suction nozzle base, a suction nozzle, a first transparent part and a second transparent part; a through hole is formed in the suction nozzle seat, and the visual assembly is aligned with the through hole; the suction nozzle is arranged at one end of the through hole, and the first transparent part is arranged at the other end of the through hole and seals a port of the through hole; a penetrating adsorption channel is formed in the suction nozzle and communicated with the through hole, and an air path connecting hole is formed in the inner wall of the through hole; the suction nozzle is further provided with a perspective observation window, the observation window and the adsorption channel are arranged in a spaced mode, projection is conducted in the axial direction of the through hole, and the projection of the observation window is located in the projection of the through hole. The binding head assembly provided by the invention can be used for carrying out high-precision positioning on a plurality of chips in the eutectic mounting process.
Owner:WEIJIAN INTELLIGENT PACKAGING TECH (SHENZHEN) CO LTD

Impurity removing device installed on circulating water pump

The utility model belongs to the technical field of cooling water impurity filtering equipment, and particularly relates to an impurity removing device installed on a circulating water pump. The impurity removing device mainly comprises a trumpet-shaped cylinder body and a trumpet-shaped filter cylinder. The trumpet-shaped barrel adopts a conical design, and the trumpet-shaped filter cartridge is mounted in the trumpet-shaped barrel through the assembly flange; the trumpet-shaped filter cartridge is also conical and is provided with a filter screen for intercepting impurities, and a deposition tank is arranged at the bottom of the trumpet-shaped filter cartridge and is communicated with the slag discharge pipe. And the slag discharge pipe extends out of the trumpet-shaped cylinder body through the through hole. The device can be mounted at the water inlet of the circulating water pump, and impurities in the inlet water of the circulating water pump are effectively removed by using the trumpet-shaped filter cartridge. Meanwhile, a rotary scraper mechanism is additionally arranged to automatically clean impurities attached to the inner wall of the trumpet-shaped filter cartridge by utilizing water flow entering the circulating water pump, and an intercepting net and a dirt discharge groove are additionally arranged to improve the safety and reliability of the whole device. The device is simple in structure, good in filtering effect and suitable for impurity treatment of the circulating water pump of the gas power plant.
Owner:SHANXI JINNAN IRON & STEEL GRP CO LTD

Cutting device for photovoltaic panel battery piece

The invention relates to the technical field of battery piece cutting, in particular to a photovoltaic panel battery piece cutting device which comprises a cutting device body, a laser head and a cutting table and further comprises multiple negative pressure suction cups, the negative pressure suction cups are located on the cutting table, and the multiple negative pressure suction cups are used for adsorbing and fixing the battery piece; the fixing assembly is arranged on the cutting table, and the fixing assembly is used for driving the negative pressure suction cup to adsorb and fix the battery piece; the photovoltaic panel battery piece cutting device comprises a fixing assembly and a separation assembly, the separation assembly is arranged on the fixing assembly, the separation assembly is used for driving a negative pressure suction cup to drive a battery piece subjected to laser cutting to deflect, and therefore the battery piece which is not completely cut is controlled to be separated along a preset cutting line. The negative pressure suction cup can firmly adsorb the battery piece, meanwhile, the separation process of the battery piece can be accurately controlled by controlling deflection of the negative pressure suction cup, automatic operation is achieved, manual intervention is reduced, and the cutting efficiency is improved.
Owner:英利新能源(宁夏)有限公司

Wafer jacking device of semiconductor

The invention provides a wafer jacking device of a semiconductor, and belongs to the technical field of semiconductor processing equipment. The device comprises a process cavity, a supporting part and a wafer, and further comprises a jacking assembly, a uniform-flow gas-flowing assembly and a gas-blocking and gas-exhausting assembly, through the arrangement of the gas storage tank and the annular baffle, it is ensured that the movable part is subjected to uniform and stable thrust in the rising process, the abrasion, inclination or jamming phenomena caused by uneven pressure are avoided, meanwhile, gas can be uniformly discharged only through one gas conveying pump, and an additional valve control system is not needed; through a magnetic control mechanism, opening and closing control over the vent groove is achieved in the jacking process, air can be automatically exhausted after jacking is completed, additional pumping treatment is not needed, and energy consumption is reduced; the corrugated sleeve and the sealing gasket are dual-guaranteed, so that support can be provided under extreme conditions, and the spring and the corrugated sleeve cooperatively buffer and reduce vibration so as to protect the wafer; the ejector pin is flexibly adjusted and is suitable for jacking processing of wafers of multiple specifications, and the universality of the device is enhanced.
Owner:江苏爱矽半导体科技有限公司

Eye cream containing composition with efficacy of improving eye skin problems and preparation method of eye cream

The invention discloses eye cream containing a composition capable of improving eye skin problems and a preparation method of the eye cream, and belongs to the technical field of cosmetics. The eye cream provided by the invention contains a repairing composition, and the repairing composition is prepared from the following raw materials: an acer rubrum extract, a zingiber zingiberensis extract, a dendrobium officinale extract, a North American arbor pine bark extract and an epilobium fragile extract. The repairing composition provided by the invention has the effects of resisting aging, fading wrinkles and improving the migration rate of skin cells, and the whole repairing composition is mild and non-irritant; when being applied to the eye cream, the repairing composition can effectively resist aging, lighten wrinkles, improve skin elasticity and increase the water content of cuticle. In addition, the composition provided by the invention is natural in component source, simple in preparation method and suitable for actual production.
Owner:DOCTOR PLANT GUANGDONG BIOTECHNOLOGY CO LTD

High-efficiency wafer test probe station

The invention relates to the technical field of precision machinery manufacturing technology, and discloses a high-efficiency wafer test probe station, which comprises a base, the upper surface of the base is fixedly connected with a loading base and a motion control system, the output end of the motion control system is fixedly connected with a microscope, the upper surface of the loading base is fixedly connected with an objective table, and the objective table is fixedly connected with the output end of the motion control system. The interior of the base is in threaded connection with a synchronous adjusting mechanism and a support protection mechanism, the top of the synchronous adjusting mechanism is fixedly connected with a probe angle adjusting mechanism, and the upper surface of the probe angle adjusting mechanism is clamped with a probe seat, so that simultaneous adjustment of a plurality of probes can be realized, the test time is shortened, and the test efficiency is improved. Adjustment is carried out according to different wafer sizes to adapt to different test scenes; the angle of the probe is adjusted by adjusting the angle of the probe seat, so that the influence of resistance on a test signal is reduced in a low-resistance test.
Owner:SHANDONG LIANHUA ZHICHENG INFORMATION TECHNOLOGY CO LTD

Composition for dispelling effects of alcohol and protecting liver and application thereof

The invention relates to the field of food and health care products, and discloses a composition for dispelling effects of alcohol and protecting liver, which comprises 20-100 parts of ampelopsis grossedentata leaf extract; 50 to 200 parts of a radix puerariae extract; 10-50 parts of a semen hoveniae extract; 10-50 parts of a turmeric extract; 10 to 100 parts of a yeast extract; 5-50 parts of a licorice extract; and 5 to 20 parts of pyrroloquinoline quinone disodium salt. The ampelopsis grossedentata leaf extract, the kudzuvine root extract and the hovenia dulcis thunb extract are utilized, alcohol decomposition is promoted, the blood ethanol concentration is reduced, and drunkenness symptoms are relieved. Puerarin improves activity of liver metabolic enzymes, accelerates discharge of ethanol and acetaldehyde, and reduces liver damage. The anti-oxidation effects of dihydromyricetin and PQQ can eliminate alcohol metabolism free radicals and protect liver cells. The components such as puerarin, hovenia dulcis thunb, curcumin and glycyrrhizic acid jointly promote liver cell regeneration, inflammation and oxidative damage are reduced, the levels of ALT and AST in serum are reduced, and liver health is maintained.
Owner:EUGENE EXCELLENCE (TIANJIN) BIOMEDICAL TECH CO LTD

Formula of pet food for strengthening intestines and balancing nutrition for pets

The invention relates to the technical field of pet food, and particularly discloses a pet food formula for strengthening intestines and balancing nutrition for pets, the pet food formula comprises the following raw materials: meat, vegetables, fruits, whole goat milk powder, Maillard reaction products, composite algae powder, yucca powder and synbiotics microcapsules; the preparation method comprises the following steps: respectively crushing the meat, the vegetables and the fruits; stirring and mixing the meat paste, the vegetable paste, the fruit paste, the whole goat milk powder, the composite algae powder, the yucca powder and the synbiotics microcapsules to obtain a mixed material; placing the mixed material in an extruder to prepare cylindrical particles; spraying the Maillard reaction product on the surfaces of the particles by adopting vacuum spraying equipment; the sprayed particles are fed into a freeze-drying bin to be freeze-dried; and packaging the frozen freeze-dried particles into bags to obtain the pet food capable of strengthening the intestines and being balanced in nutrition. The formula of the pet food capable of strengthening the intestines and balancing the nutrition has remarkable effects in the aspects of improving the health of the intestines, guaranteeing the balanced nutrition, improving the appetite of the pets and the like.
Owner:深圳海珹科技有限公司

Control cabinet with insect expelling function

The utility model discloses a control cabinet with a desinsectization function, and relates to the field of electrical engineering, in particular to the control cabinet with the desinsectization function, which comprises a top cross beam, upright posts, inclined struts and the like. The insect expelling lamp and the sound wave insect expelling device are used in a combined mode, insect invasion is effectively reduced, and internal electrical equipment is protected. The insect repelling lamp attracts and kills insects, and the sound wave insect repeller emits ultrasonic waves or infrasonic waves which interfere with the insects to repel the insects which are not sensitive to light. And secondly, the cooling fan is additionally arranged at the ventilation opening of the control cabinet, air circulation is greatly improved through forced convection, the internal temperature is effectively reduced, and electronic components are prevented from being overheated. And finally, normal operation in a low-temperature environment is ensured by using a heating pad, heat preservation or heat dissipation is adjusted according to the air temperature through the manual adjusting function of a shutter baffle, cold air invasion is avoided, the equipment stability is ensured, and the service life is prolonged.
Owner:CHINA RESOURCES NEW ENERGY BEIPIAO WIND POWER LTD

GaAs solar cell with moth-eye bionic micro-nano structure anti-reflection layer and preparation method of GaAs solar cell

The invention belongs to the technical field of solar cell materials, and discloses a GaAs solar cell with a moth-eye micro-nano structure anti-reflection layer and a preparation method of the GaAs solar cell in order to enhance the solar spectrum utilization rate and improve the photoelectric conversion efficiency of the solar cell. The method comprises the following steps: growing a thin film with a nano-column structure on a Si substrate with a SiO2 layer in an MBE autocatalytic growth mode, spin-coating PMMA on the surface of the thin film, and transferring the nano-column structure to a GaAs and carbon nanotube heterojunction solar cell through a two-dimensional material wet transfer technology to prepare the solar cell with the moth-eye micro-nano structure anti-reflection layer. Compared with a nanoimprint lithography technology and a photolithography technology, the method provided by the invention is more convenient to operate and more environment-friendly, and does not need to use some harmful gases and harmful chemicals to etch the micro-nano structure. According to the GaAs heterojunction solar cell with the moth-eye bionic micro-nano structure anti-reflection layer prepared by the method, the material used by the anti-reflection layer is not limited, and the utilization rate of sunlight can be remarkably improved, so that the photoelectric conversion efficiency of a device is remarkably improved.
Owner:SOUTH CHINA UNIV OF TECH

A wire rope straightening machine

The invention discloses a wire rope straightening machine, which relates to the technical field of wire rope processing, and comprises a lubrication straightening mechanism and an oil injection pump installed on one side of the lubrication straightening mechanism, wherein a straightening and winding mechanism is arranged on one side of the lubrication straightening mechanism, and a wire rope body is arranged inside the straightening and winding mechanism, wherein the lubrication straightening mechanism comprises an oil storage tank, wherein first lifting support columns are symmetrically installed at the bottom of the oil storage tank, and first lifting top plates are fixedly installed at the tops of two of the first lifting support columns, wherein a first lifting motor is fixedly installed at the top center position of the first lifting top plate, and a rotating storage arm is rotated around a second rotating shaft while being able to slide inside a rotating sleeve by starting a second rotating motor, so that the rotating storage arm drives the first straightening roller to fit the surface of the wire rope body, thereby performing preliminary straightening of the wire rope body and improving the straightening effect of the wire rope body.
Owner:GUANGDONG ZHILING TECHNOLOGY CO LTD

Continuous feeding method for plastic products

The invention relates to the technical field of plastic product processing, and discloses a plastic product continuous feeding method which comprises the following steps: step 1, intelligent material level monitoring: mounting a high-sensitivity material level sensor in a hopper, monitoring material level change in real time, and ensuring timely material supplement; and 2, multi-channel feeding design is conducted, specifically, a plurality of feeding channels are designed, multiple materials are allowed to be fed at the same time, and feeding interruption caused by blockage of a single channel is avoided. According to the continuous feeding method for the plastic products, through intelligent material level monitoring and multi-channel feeding design, the system can monitor the material level in real time and supplement materials in time, meanwhile, due to the multi-channel design, when a certain channel is blocked, the channel is automatically switched to a standby channel, and therefore production stagnation caused by feeding interruption is avoided, and the production efficiency is improved. By means of the continuous and stable feeding mode, the production efficiency and stability of the injection molding process are improved, and production delay and cost loss caused by the feeding problem are reduced.
Owner:HONGWO MASCH TECH (SUZHOU) CO LTD

High-activity intestinal crypt as well as separation method and application thereof

The invention relates to the technical field of tissue isolation, and particularly discloses a high-activity intestinal crypt and an isolation method and application thereof. The separation method comprises the following steps: S1, taking fresh intestinal tracts, cleaning contents, and scraping mucous membrane layer tissues to obtain intestinal mucous membrane tissues; s2, shearing intestinal mucosa layer tissues, mixing the intestinal mucosa layer tissues with the separation liquid after cleaning, and digesting and dissociating to obtain intestinal mucosa tissue digestive juice; s3, centrifuging the intestinal mucosa tissue digestive juice, removing supernate, mixing the supernate with the protective liquid to obtain intestinal crypt mixed liquid, filtering, centrifuging, and taking precipitate to obtain high-activity intestinal crypts; wherein the separation liquid comprises collagenase I, collagenase II, collagenase IV, elastase, DNA enzyme I and a ROCK inhibitor; the protection liquid comprises an RPMI1640 culture medium, antibiotics, fetal calf serum, bovine serum albumin and a ROCK inhibitor. The technical scheme provided by the invention aims to shorten the intestinal tract crypt separation time and improve the cell viability.
Owner:HUNAN NORMAL UNIVERSITY

Loader driven by double motors and maintenance method thereof

The invention provides a loader driven by double motors and a maintenance method thereof, and relates to the technical field of engineering mechanical equipment, the loader comprises a frame, a cab and wheels arranged on the frame, a bucket arranged at the front end of the cab, a working device arranged at the right rear end of the frame, and a walking device arranged at the left side of the frame; the working device is arranged above the right side of the walking device; the working device comprises a working motor, a first fixing piece and a second fixing piece; the walking device comprises a walking motor, a third fixing piece, a fourth fixing piece, a fifth fixing piece and a sixth fixing piece. The first fixing piece is fixed with the rear end of the frame; the second fixing piece, the third fixing piece and the fourth fixing piece are fixed with the right lower end of the frame; and the fifth fixing piece and the sixth fixing piece are fixed with the left lower end of the frame. A pure electric driving system is adopted, and the working device and the walking device are driven by double motors to work, so that emission of carbon dioxide and other harmful gases is effectively reduced, and noise pollution is reduced.
Owner:QINGDAO LOVOL EXCAVATOR

IPNs anti-corrosion antibacterial coating in marine environment as well as preparation method and application of IPNs anti-corrosion antibacterial coating

The invention discloses an IPNs anti-corrosion antibacterial coating in a marine environment as well as a preparation method and application thereof, and belongs to the technical field of coatings. The coating comprises a semi-finished product A and a semi-finished product B in a weight ratio of 1: 1; the semi-finished product A comprises the following raw materials in parts by mass: 35-45 parts of acrylic acid, 1-4 parts of an antibacterial agent and 3-12 parts of a dispersing agent; the semi-finished product B comprises the following raw materials in parts by mass: 6-12 parts of a curing agent, 3-8 parts of a film-forming agent and 8-15 parts of a pH regulator; 20 to 32 parts of a filling agent; the curing agent comprises an organic silicon curing agent and a fatty acid anhydride curing agent in a mass ratio of (4-7): (2-6). The invention further provides a preparation method of the coating and application of the coating in marine operation equipment. The marine operation equipment comprises a naval vessel, an anchor chain, drilling equipment, an instrument and a culture net cage. The anti-corrosion and antibacterial performance of the coating is effectively improved, the curing time is short, the subsequent coating method is simple and easy to implement, and the coating is suitable for large-scale production.
Owner:JIANGSU JICUI SURFACE ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO LTD

Control system of variable-frequency refrigerated dryer

The invention relates to the technical field of dryers, in particular to a control system of a variable-frequency refrigerated dryer, which is composed of the following three controls: superheat degree adjustment, dew point temperature adjustment and protection mechanism through an electronic expansion valve, low-frequency pre-operation of the dryer after the dryer is started, and operation of a compressor according to a set lower limit frequency. The electronic expansion valve adjusts the degree of superheat, specifically, when the degree of superheat is higher than a target value after pre-operation, the opening degree of the electronic expansion valve is increased, and when the degree of superheat is lower than the target value, the opening degree of the electronic expansion valve is reduced, and the degree of superheat reaches a constant range, the electronic expansion valve stops adjusting at the moment. The variable-frequency refrigeration dryer can dynamically balance the high pressure and the low pressure of a refrigerant system, enables the frequency and the dew point of compressed air to be stable, ensures that equipment is kept in a safe working range under various operation conditions, and not only improves the reliability of the system, but also prolongs the service life of the equipment through the protection mechanism.
Owner:XIAMEN EAST ASIA MASCH IND CO LTD

Anti-collision reset device for three-dimensional laser cutting

The invention relates to the field of laser cutting, in particular to an anti-collision reset device for three-dimensional laser cutting, which is arranged on a driving mechanism for driving a laser head to move, and the driving mechanism is provided with a driving block on which the laser head is arranged. The anti-collision reset device comprises a sleeve fixedly arranged on the driving block, anti-collision strips movably arranged on the periphery of the sleeve and a reset mechanism. The reset mechanism comprises an elastic connecting piece fixedly arranged between the laser head and the sleeve and a locking assembly in transmission connection between each anti-collision strip and the laser head. The laser head is protected through the anti-collision strip, the laser head is prevented from making direct contact with a welded workpiece, and after the anti-collision strip collides with the welded workpiece, constraint of the locking assembly on the laser head is rapidly relieved, so that the laser head rapidly retracts into the sleeve and is reset to the non-working state of the laser head; and the risk that the laser head is damaged due to collision is avoided.
Owner:SHENZHEN OSPRI INTELLIGENT TECH CO LTD

Charger with winding mechanism

The utility model relates to the field of chargers, in particular to a charger with a winding mechanism. The technical problems that a charging wire of an existing charger usually needs to be frequently plugged and pulled out of the charger and carried, in the charging wire carrying process, the charging wire is inconvenient to wind and store evenly, the charging wire is prone to bending and stretching, the charging wire is damaged and broken, and the service life and the charging effect of the charging wire are affected are solved. According to the technical scheme, the charger with the winding mechanism comprises a shell, a rolling assembly, a limiting assembly, a fixing assembly and a plug; a plurality of groups of partition plates are adopted to separate charging wires for winding, so that the charging wires are kept tidy and orderly in the winding process, the winding distance of the charging wires is consistent, the situation of excessive winding or too tight winding is avoided, winding and entanglement between the charging wires are effectively prevented, the winding process is more stable, and the winding efficiency of the charging wires is improved. And the inconvenience in use and the damage risk caused by winding of the charging wire are reduced.
Owner:深圳市威源新能科技有限公司

Application of antioxidant lipidosome in preparation of medicine for preventing and / or treating inner ear injury caused by active oxygen accumulation

The invention relates to application of an antioxidant liposome in preparation of a medicine for preventing and / or treating inner ear injury caused by active oxygen accumulation, and belongs to the field of medical technologies and biological medical materials. The antioxidant lipidosome is rutin-entrapped lipidosome, and the inner ear injury is preferably cis-platinum induced inner ear injury. The antioxidant liposome disclosed by the invention is used for inhibiting active oxygen accumulation, mitochondrial injury and cell apoptosis in cells; the compound is used for inhibiting auditory hair cell mitochondrial injury in cochlea. The antioxidant liposome disclosed by the invention can be used for effectively packaging medicines and improving the bioavailability and the stability of the medicines; the limitation of a tympanic membrane barrier and other biological barriers can be overcome, so that the medicine can effectively reach the inner ear part; precise targeted delivery of the medicine can be achieved, and it is ensured that the medicine is intensively released at the needed position.
Owner:XIEHE HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI & TECH UNIV