56results about How to "Full security" patented technology

The invention relates to the technical field of lithium batteries, in particular to a preparation method of a power lithium battery diaphragm. The preparation method comprises the following steps of dissolving, assistant adding, extruding, sheeting casting, diaphragm forming by drawing, shaping and the like, and a polyolefin resin microporous membrane, namely a lithium battery diaphragm, is formed finally. The diaphragm prepared by the method is 10-25 mu m thick, has a preferential porosity being 40-70%, and 105 DEG C heat shrinkage rate below 5%. The prepared diaphragm has the advantages of low closed-pore temperature, high fusing temperature, low heat shrinkage rate, good mechanical properties and has excellent safety performance when used as a power lithium battery diaphragm. In addition, the power lithium battery diaphragm is a polyolefin resin microporous sinlge-layer membrane which has good heat stability after being subjected to process steps such as drawing and shaping.

The invention relates to a novel lifting device for a building. The novel lifting device comprises a support and a bottom plate. A left supporting rod is arranged at the left end of the bottom plate, and a right supporting rod is arranged at the right end of the bottom plate. A weighing sensor is arranged in the middle of the top of the bottom plate. A supporting plate is arranged above the bottom plate and is in sliding connection with the left supporting rod and the right supporting rod through a left supporting plate through hole and a right supporting plate through hole. The supporting plate is provided with a microcontroller, an LCD and a hydraulic cylinder. The top end of a piston rod of the hydraulic cylinder is connected with a top plate. The top plate is in sliding connection with the left supporting rod and the right supporting rod through a left top plate through hole and a right top plate through hole. The top plate is further provided with a left baffle and a right baffle. A front protection net and a rear protection net are arranged between the left baffle and the right baffle. A transverse inserting rod is inserted in a left baffle through hole of the left baffle in an embedded manner, a handle is arranged at the right end of the transverse inserting rod, and a limiting block is arranged at the left end of the transverse inserting rod. The part, located on the left of the left baffle, of the transverse inserting rod is sleeved with a spiral spring. A plurality of limiting clamping grooves are formed in the right side of the left supporting rod from top to bottom. By means of the above structure, the flexible height lifting adjustment can be conducted, and a constructor can be fully protected.

The embodiment of the invention discloses a method and device for attacking a secret key. The method comprises the steps that the length of an RSA code operation is set to be t, and the RSA code operation is conducted on data through the attacked secret key, so that a first power consumption curve for the attacked secret key to conduct modular exponentiation is obtained; whether the RSA code operation in the first power consumption curve is implemented through hardware or not is analyzed through a simple energy SPA attack / analysis method, if yes, an attack is failed; if not, according to the number of execution times of modular multiplication in the first power consumption curve, a testing secret key is obtained, RSA code operation is conducted on same random data through the testing secret key and the attacked secret key, whether results are identical or not is judged, and if yes, the attack is successful; the RSA code operation is a standard RSA decoding operation or a signature operation which is implemented through modular exponentiation.

The invention discloses a smart Internet of Things communication service system and a smart Internet of Things communication service method. The system comprises: a forwarding layer device and a control layer device, wherein the forwarding layer device comprises: an LNS, a PCRF, and an egress routing device; the LNS accesses a PGW, and the LNS, the PCRF, and the egress routing device are connectedwith each other through a forwarding layer communication link; the control layer device comprises: an accounting server, a policy server, a CRM server, and a certification authentication server, which are in communication connection through the control layer link based on a control management switch; the policy server is in communication connection with the PCRF through the control layer link; the LNS establishes an L2TP VPN channel with the PGW; the CRM performs customer relationship management; the policy server synchronizes and controls the policy configuration of the PCRF; the PCRF records the network call bills of the user equipment based on the configured policy, and controls the network access behavior of the user equipment; the accounting server generates a corresponding traffic bill according to the network call bill recorded by the PCRF; and the certification authentication server performs certification authentication and log recording on the user equipment.

The invention discloses a crack width checking and control method of an underground continuous wall. The method is characterized in that a maximum bending moment under the characteristic combination of some working condition at a foundation pit construction stage is adopted, and a minimal protective cover thickness and a suggested component height are substituted into a formula required by a standard for checking until reinforcing bars of the underground continuous wall meets the requirements; the checking specifically comprises the following steps: calculating widths of primary reinforcing bars and cracks, thickness of a protective cover and height of a component, reinforcement ratio, equivalent stress of reinforcing steel bars, non-uniform coefficient of stress and maximum crack width. Compared with the prior art, the method has the advantage that on the premise of meeting and ensuring the safety of the structure, the waste of reinforcement for the underground continuous wall is reduced to the greatest extent, so that the engineering cost is further lowered.

The invention discloses interval-adjustable double-clamp clamping application pliers. The pliers comprise a pair of first clamping application rods, a pair of second clamping heads, a pair of second clamping application rods and an open-close device; first clamping heads are connected with the front portions of all the first clamping application rods; all the second clamping heads are rotatably connected with the tails of the corresponding first clamping heads and can be opened and closed relative to the first clamping heads; the second clamping application rods are connected with the tails ofa pair of second clamping heads respectively; the open-close device which is used for driving a pair of second clamping heads to be opened and closed relative to the first clamping heads is connectedwith a pair of second clamping application rods respectively. In addition, the pliers further comprise an interval adjustment device and a holding device; the interval adjustment device which is usedfor adjusting the interval between a pair of first clamping heads is connected with a pair of first clamping heads respectively; the holding device which is used for supporting the interval adjustment device and facilitates clamping application operation is connected with the interval adjustment device. The adjustable-interval double-clamp clamping application pliers are simple in structure, convenient to operate and high in practicability, according to blood vessels of different sizes, thicknesses and positions and different arteriovenous conditions in clamping application operation, clamping application interval adjustment can be conducted, the blood vessels are ligated, and operation safety is guaranteed.

Disclosed is a user-friendly vehicle which can be used comfortably in safety and can ensure motion performance as much as possible while guaranteeing adequate security even when the body is fixed while leaning heavily to either the left or right side by reducing the transverse acceleration limit of the vehicle when a body tilting link mechanism is fixed. The vehicle comprises right and left drive wheels (12) fixed rotatably to the body, a body tilting link mechanism which tilts the body to the right or left, a link brake which fixes the body tilting link mechanism, and a vehicle controller which controls the position of the body by controlling the drive torque to be imparted to each drive wheel (12) and the link torque to be imparted to the body tilting link mechanism, wherein the vehicle controller reduces the transverse acceleration limit of the vehicle when the link brake fixes the body tilting link mechanism.

The invention discloses a cooling water circulation system applicable to a high-flow test platform. The back of barreled distilled water is connected with a small water pump. The periphery of a water tank is connected with the small water pump, a first manual stop valve and a second manual stop valve. A damping block is placed at the bottom of the water tank. A water pipe in the water tank is connected with a first hose. The damping block is located under the water pipe. A first pressure sensor, a first temperature sensor and a first pressure meter are arranged on the water pipe and used for detecting state parameters of the distilled water. The water pipe is provided with a tee joint connected with a third manual stop valve. The second manual stop valve is connected with a second hose. A water inlet of a high-pressure water pump is connected with the second hose. A water outlet of the high-pressure water pump is connected with a third hose and a second pressure meter. The rear portion of the third hose is provided with a tee joint connected with a safety valve and a flow regulating valve. The flow regulating valve is provided with a tee joint connected with a fourth manual stop valve and a filter. The rear portion of the filter is provided with a tee joint connected with a third pressure meter and a solenoid valve; the rear portion of the solenoid valve is connected with a flowmeter. The outer end of the flowmeter is connected with a fourth hose. A second pressure meter and a second temperature sensor are connected between the flowmeter and the fourth hose. The two ends of a test piece are connected with the fourth hose and the first hose respectively.

The invention provides an excavator and a hydraulic system for the bucket arm of the excavator. The hydraulic system comprises a bucket arm cylinder, which comprises an armless chamber and an arm chamber; a first oil way, which is communicated with the armless chamber; a second oil way, which is communicated with the arm chamber; a third oil way, which is connected with the second oil way; and a bucket arm control valve, which is used for enabling an oil supply way to be communicated with the first oil way when a soil excavation signal is received and enabling the oil supply way to be communicated with the third oil way and an oil return way to be communicated with the first oil way when a soil dumping signal is received. A reversing valve is arranged between the third oil way and the second oil way. The second oil way is connected with a hydraulic control valve. When the soil excavation signal is received, the hydraulic control valve is arranged at a conducted position to conduct the reversing valve and therefore the second oil way is communicated with the oil return way; and when the oil dumping signal is received, the hydraulic control valve is arranged at a shut-off position to shut off the reversing valve and therefore hydraulic oil can flow in one way only from the third oil way to the second oil way. The excavator and the hydraulic system have the advantages that the position of the bucket arm can be kept reliably during soil dumping operation and the dangers caused by accidental sinking of the bucket arm can be avoided simply and effectively.

The invention discloses a support method and device for preventing mud rock landslides. A design excavation line is set at the position away from a slope top building outer wall by 2 M or above; during construction, excavation is conducted according to the sloping slope ratio required by the design from top to bottom, excavation is paused every time when excavation is downwards conducted by 1.5 m, temporary anchor rod support is conducted on the layer, and a drainage pipe is driven into a slope body to conduct drainage treatment; downward excavation is conducted while support and drainage are conducted layer by layer till the slope bottom is reached; a foundation trench is dug in the slope bottom, the outer wall of the foundation trench is a concrete pouring body, the foundation trench is filled with mud rock materials obtained after excavation to be compacted; then, a concrete cavity is constructed above the foundation trench in a layering pouring manner, and the cavity is filled with the mud rock materials to be compacted till the slope top is reached; and finally, anchor rods, the drainage pipes and the outer side of the concrete cavity are fixed. According to the support method and device, the structure is simple, the cost is low, little waste slag exists, the safety performance is high, and construction and operation are fast.

In order to enable the rotary vanes of a windmill to rotate to any position by means of a simple and low-cost configuration, and to prevent malfunctions even when excessive torque variation from the rotary vanes of the windmill is applied during gusty winds, a turning device (35) is characterized by being equipped with: a brake disk (24), which serves as driven-side friction pulley provided so as to rotate integrally on an output shaft (21) of a speed-increasing gear; a driving-side friction pulley (36), which is provided so as to be capable of moving between an engaged position (36b) wherein the outer circumferential surface (24a) of the brake disk (24) is frictionally engaged, and a free position wherein the driving-side friction pulley is separated from the outer circumferential surface (24a) of the brake disk (24); a pulley compression mechanism (37), which moves the driving-side friction pulley (36) from the free position to the engaged position (36b) in response to the manpower of the operator, causing the driving-side friction pulley to frictionally engage the outer circumferential surface (24a) of the brake disk (24); and a pulley-driving means (an electric motor or the like) which rotationally drives the driving-side friction pulley (36). When excessive torque variation is applied, the friction engagement between the brake disk (24) and the driving-side friction pulley (36) slips, and damage is avoided.

The invention provides a liquefied natural gas pump lifting device which is simple to move and install and easy to maintain and operate. The liquefied natural gas pump lifting device comprises a supporting column which is vertically arranged on the ground or a storage tank at the side of the liquefied natural gas storage tank; a bench top arranged above the supporting column through a rotation part; a cantilever which is arranged above the bench top on one end of the upper part of the supporting column in a manner of extending in a direction roughly parallel to the bench top; and an elevator provided with a pump lifting device capable of moving along the cantilever. All parts except the supporting column can be detached / assembled. Preferably, the elevator of the liquefied natural gas pump lifting device is provided with a non-oil-pressure type overloading detection device.

The invention provides a degradable biomedical magnesium alloy drug eluting intravascular stent and a preparation method thereof. Wherein the magnesium alloy is prepared from the following components in percentage by weight: 3.0 to 6.0 percent of Gd, 2.5 to 5.5 percent of Y, 1.0 to 3.0 percent of Li, 0.3 to 1.0 percent of Zn, 0.2 to 1.0 percent of Zr and the balance of Mg on the basis that the total weight of the magnesium alloy is 100 percent. The stent has good radial supporting strength and strain dispersion capacity through finite element design. After the protective coating designed by the invention is used, the corrosion resistance of the magnesium alloy stent is greatly improved. The arsenic trioxide or rapamycin and tacrolimus composite drug sustained-release system is used, and is fully adapted to the damage repair process of blood vessels. The implantation result of a large animal shows that the intravascular stent system has a good anti-restenosis treatment effect.

The invention relates to a safety protection device for a special iron core ejector rod welding machine. The safety protection device comprises a safety light curtain and two light curtain supports. The two light curtain supports are symmetrically arranged on the two sides of the front of the worktable of the rack of the welding machine. The safety light curtain consists of a light transmitter and a light receiver, wherein the light transmitter and the light receiver are arranged on the light curtain supports and face each other. The safety light curtain is connected with the welding head of the welding machine. The light transmitter comprises an elongated plate body and a plurality of infrared transmitters. The light receiver comprises an elongated plate body and a plurality of infrared receivers. By arranging the safety light curtain on the two sides of the rack of the welding machine, when an operator stretches a hand into a movement area, the safety light curtain can automatically sense the hand, the welding head goes back to the original position, the safety performance is improved, and the safety of the operator and equipment is fully protected.

The invention discloses a solar photovoltaic power generation device of a frame through-conductor type, and the device comprises a photovoltaic power generation plate. The top of the photovoltaic power generation plate is provided with an aluminum frame, and the bottom of the photovoltaic power generation plate is provided with an inverter. The top of the photovoltaic power generation plate is provided with a solar cell panel, and the bottom of the photovoltaic power generation plate is provided with a support. The bottom of the support is provided with a support strut, and the top of the support is provided with a fixed groove. One side of the fixed groove is provided with a fixing screw. The top of the solar cell panel is provided with a tempered glass cover plate, and the bottom of the tempered glass cover plate is provided with an EVA filling material. The device provided by the invention is small in investment, is quick in construction, is small in occupied area, is high in photoelectric conversion efficiency, has full cleanness, absolute safety, relative universality, definite long service life, maintenance-free performance, sufficient resources and potential economical efficiency, and is good in application prospect.

The invention provides a system for controlling vehicle entering and leaving. The system comprises a vehicle ID (identification) card, a signal emission base installed inside a vehicle, a reader, a control device connected to the reader and a passgate controlled by the control device. Specifically, the vehicle ID card sends vehicle ID information including vehicle ID data to the signal emission base; the signal emission base sends vehicle ID information and receives characteristic information sent by the reader; the reader sends the characteristic information to a deck emission device and monitors the reception of the vehicle ID information sent by the signal emission base; and the control device controls the rise of the passgate based on a signal from the reader. The invention also discloses a method for controlling vehicle entering and leaving.

Provided is a vehicle wherein even when an active weight portion is fixed at a position that greatly deviates from a neutral position, the highest possible motion performance can be secured and adequate safety can be ensured by reducing the vehicle acceleration and vehicle deceleration limit values when the active weight portion is fixed, the vehicle being able to be used user-friendlily, safely,and comfortably. Specifically provided is a vehicle comprising a drive wheel (12) which is rotatably attached to a vehicle body, an active weight portion which is movably attached to the vehicle body, an active weight portion brake which fixes the active weight portion to the vehicle body, and a vehicle control device which controls the posture of the vehicle body by controlling the drive torque to be applied to the drive wheel (12) and the position of the active weight portion, wherein when the active weight portion is fixed to the vehicle body, the vehicle control device makes the vehicle acceleration and vehicle deceleration limit values lower than the vehicle acceleration and vehicle deceleration immediately before the active weight portion is fixed to the vehicle body.

The invention relates to an ophthalmic depot formulation containing benzyl benzoate and / or benzyl alcohol and polyethylene glycol and / or dimethylsulfoxide wherein the volume ratio of benzyl benzoate and / or benzyl alcohol and polyethylene glycol and / or dimethylsulfoxide in the ophthalmic depot formulation is 75:25-25:75, and the ophthalmic depot formulation contains a total of 50% (w / w) or more of benzyl benzoate and / or benzyl alcohol and polyethylene glycol and / or dimethylsulfoxide.

The invention provides a mobile phone protective film with high toughness and a preparation technology of the mobile phone protective film, and relates to the field of a mobile phone protective film and a preparation technology thereof. The mobile phone protective film with high toughness is prepared from raw materials as follows: a PET (polyethylene glycol terephthalate) plastic film, natural rubber, AB glue, a PE (polyethylene) waterproof film, fingerprint-proof oil, electroplating oil, tungsten powder, silver fiber, molybdenum powder and an SMC (sheet molding compound) composite material. The raw materials are taken according to the metering proportion and processed with a processing technology of the mobile phone protective film with high toughness, and the mobile phone protective filmwith high toughness can be prepared. With the adoption of the technical scheme, the mobile phone protective film with high toughness is prepared from the raw materials with higher toughness, after the protective film collides with a sharp object, the protective film can disperse force to each point and performs sufficient safety protection on a mobile phone screen, corners of the mobile phone screen cannot be damaged due to friction, the mobile phone protective film can keep flat, appearance is guaranteed, radiation is reduced, and harm to a human body is reduced.

The invention discloses a smart lock with voice prompt function. The smart lock comprises a lock body (10) and a prompting device (20) fixedly connected to the inner side of the lock body (10); the lock body (10) comprises a housing (11), a two-dimensional code (12) and a lock cylinder (13), a curved lock bolt (14) and a first elastic member (15). The prompting device (20) comprises a control unit(21), a detecting unit (22) for detecting a state change of the lock body (10), and an alarm unit (23) capable of emitting a voice prompt; the control unit (21), the detecting unit (22) and the alarmunit (23) are electrically connected. When the state of the lock body (10) detected by the detecting unit (22) changes, the control unit (21) drives the alarm unit (23) to issue a corresponding voiceprompt. The invention can effectively prevent the possibility of getting lost caused by that the user's riding deviation is beyond the range of the scenic spot and the possibility of personal injuryaccident, and the smart lock is totally safe.

The invention discloses an attribute-based encryption method based on a prime number order group, and the method comprises the steps: (1) an authentication center generates the prime number order group, and generates a public parameter and a main private key according to a safety parameter; (2) the authentication center generates a user private key associated with the user attribute set accordingto the public parameters, the main private key and the user attribute set; (3) the data publisher encrypts the plaintext according to the public parameters and the required access control strategy, and outputs the ciphertext and the access control strategy only with the attribute name set; and (4) the data acquirer verifies whether the attribute set meets an access control strategy or not according to the private key, the public parameter and the ciphertext related to the personal attribute set, and then acquires a plaintext through decryption. The method is constructed on the basis of the prime number order group, the complete safety of the construction of the composite number order group is met, public parameters and key length are effectively shortened, meanwhile, the operation and storage efficiency is improved, and the operation and storage requirements of limited equipment in intelligent medical treatment are met.

A processed edge face structure of a laminated film composed of two or more layers comprising a uniaxially or biaxially stretched base film layer and a sealant layer superposed on one side or each side of the base film layer, the structure including one or more layers, e.g., an adhesive layer, an anchor coat layer, and an ink layer, which have been completely prevented from being exposed. Also provided are: a method of edge face processing for producing the structure; a liquid ejection nozzle capable of preventing a filling to be packaged into a flexible packaging bag from coming into contactwith the adhesive layer, etc.; and a process for producing the nozzle. The edge face of the laminated film comprising a base film layer and sealant layers superposed thereon so that the base film layer is sandwiched therebetween is characterized in that the edge face of the base film layer has been covered with the sealant layers by disposing the sealant layers so as to protrude from the edge of the base film layer.

The invention relates to a defrosting method of a high-temperature air source heat supply system, which comprises the following steps: 1) treatment before installation: (1) disassembly of a compressor shell: a welding filler on the outer surface of the compressor shell is polished and removed, the filler can be cleaned by a polishing machine, and after the filler is cleaned up, the compressor shell is defrosted; the compressor shell can be knocked open by a hammer to be divided into an upper part and a lower part; and (2) cleaning the compressor shell and the fins: removing rusty parts on the inner side surface, the outer surface and the surfaces of the fins of the compressor shell, and washing away residual dirt by using clean water. According to the defrosting method of the high-temperature air source heat supply system, the compressor shell and the fins are treated before the capillary tubes are installed, the treatment mode is detailed to removal of rusty parts and dirt on the surfaces of the compressor shell and the fins, and therefore the installation stability of the capillary tubes after welding is avoided; and the capillary tubes are welded after being embedded by forming the grooves, so that the overall stability of welding installation is improved.

[Problem] To provide an upper surface antireflective film forming composition, having film formability, a refractive index, temporal stability, and safety all equal to or better than conventional products, and a pattern forming method using the same. [Solution] The upper surface antireflective film forming composition is characterized by comprising: a fluorine containing polymer having a weight-average molecular weight of 300,000-800,000, said polymer being represented by general formula (1): -Ax-By- (1) (where A is a repeating unit represented by general formula (A): (where R is a fluorine containing alkylene group with a carbon number of 1-40, or a fluorine containing alkylene group which has an ether linkage and has a carbon number of 2-100); B is a repeating unit with which it is possible to form a copolymer by bonding with A; x and y are numbers representing polymerization ratios; x is not 0; and A and B may randomly be bonded, or form blocks); an alkyl sulfonic acid with a carbon number of 10-18; and a solvent.

The invention discloses a telescopic variable-angle stair climbing wheelchair, which comprises: a motor, crawler wheels, a level road driving wheel, a first seat balance push rod, a crawler wheel push rod, a level road driving wheel push rod, a seat push rod, a second seat balance push rod, a seat, a main support telescopic push rod, a battery, a level road driven wheel, a level road driven wheel push rod and a main support. The wheelchair is simple and convenient to produce, wherein by adopting the four-wheel-drive four-track driving mode, the speed of going upstairs and downstairs can be more effectively increased on the premise that safety is guaranteed. Due to the scalability and angle variability of the crawler wheels and the connection and rotation characteristics of the seat, the wheelchair is more reasonable and stable in structure, more complete in safety performance and higher in safety coefficient, the front-up and front-down advancing mode is adopted, operation is convenient, and the visual safety sense of a passenger is higher. The wheelchair has the characteristic of simple operation, and is suitable for popularization and application.

The invention provides a safety system of a stereo parking garage. The safety system of the stereo parking garage comprises mobile parking spaces, portals, safety isolating devices, a top platform, a lift car guide rail, a lift car, a horizontal guide rail and a transmission mechanism, wherein the portals are fixed to the mobile parking spaces; each safety isolating device is arranged between the corresponding mobile parking space and the corresponding portal; and the number of the mobile parking spaces is twelve or over, and the mobile parking spaces are of a movable combined structure. By means of the safety system, car owners can go back and forth between the floor and parked cars through an elevator, so that time is greatly saved, the situation that in order to take or place objects, people have to move the cars and consequently various inconveniences are caused is avoided, the car owners can go back and forth between the floor and the cars directly, and efficiency is greatly improved. Meanwhile, safety of all the cars in the stereo parking garage is ensured, the car owners can enjoy the full sense of safety as private parking garages, lawbreakers cannot easily steal any cars parked in the stereo parking garage, and the car owners do not need to worry about that the own cars are scratched but relevant people in charge cannot be found.