849results about How to "Increased protection" patented technology

The invention discloses a radiation heat dissipation coating for reducing the light-emitting diode (LED) chip junction temperature and a preparation method thereof. The coating comprise the following components in percentage by weight: 30-70% of macromolecular resin, 5-40% of solvent, 10-30% of far infrared ceramic powder, 5-20% of silicon carbide, 0.5-3% of cerium oxide and 1-5% of addition agent. By utilizing the radiation heat dissipation coating disclosed by the invention, the LED chip junction temperature can be greatly lowered, and the service life of an LED chip in a lamp can be prolonged.

The invention belongs to the technical field of materials, and relates to a wave-transmitting core clamping material and a manufacturing method and application thereof. The wave-transmitting core clamping material comprises an upper skin layer, a core layer and a lower skin layer, wherein the upper skin layer and the lower skin layer are bonded on the two sides of the core layer, respectively; the upper skin layer and the lower skin layer are made of a fiber-reinforced thermoplastic composite material or a laminated material of the fiber-reinforced thermoplastic composite material and a transition material. The prepared wave-transmitting core clamping material provided by the invention has the characteristics that the quality is light, the intensity is high, the wave-transmitting property is good, the adaptive temperature range is wide, and the core clamping material is manufactured to be in different shapes through different manners of hot pressing, vacuum forming and the like so as to meet the requirement on the shape of an antenna cover.

The invention discloses a method and a device for preparing a working layer of a metallurgical hot roll by laser direct deposition, which belong to the field of the application of laser technology. The method is characterized in that high speed steel-like powder and Co-based alloy composite powder are used as the materials for the working layer of the roll. Concretely, the method comprises: filling high speed steel-like powder or mechanically mixed powder which uses Co-based alloy and the like as a substrate material and is added with reinforcing and toughening submicron grains with different amounts into a powder supply system; and performing laser-assisted direct metal deposition on the surface of a roll core, of which the travel is controlled by a worktable, with synchronous powder supply to manufacture the working layer of the roll. A deposition method adopts an alternate deposition mode. The corresponding deposition thickness is determined according to the requirements on the thickness of the working layer. The hard phase content of the powder, in which the Co-based alloy is added as a hard phase, is increased layer by layer so as to form a gradient deposited layer. In the method, the reinforced, toughened and wear-resistance working layer is prepared on the surface of a cheap hot roll core part material by laser-assisted metal direct deposition technology under specific process conditions.

The invention discloses wood lacquer for purifying formaldehyde and a preparation method thereof. The wood lacquer is prepared by mixing a component A with a component B in a mass ratio of (1:0.25)-(1:0.5), and then stirring the mixture uniformly, wherein the component A is prepared by putting alkyd resin and alcohol solvents into a reaction kettle under the protection of nitrogen, stirring the materials uniformly and heating the materials to 50-75 DEG C, adding first diluents, fillers, driers, wax powder, formaldehyde removal agents and an anti-settling agent in sequence, continuing stirring, maintaining the temperature at 40-70 DEG C and reacting for 15-60 minutes, and discharging the material after returning to the room temperature; the component B is prepared by putting second diluents into the reaction kettle under the protection of nitrogen, stirring and insulating the materials, putting curing agents, a levelling agent and a defoaming agent into the reaction kettle, insulating and stirring the materials, and discharging the material after returning to the room temperature. The wood lacquer has high formaldehyde removal efficiency and good durability, dispenses with recoating films, and is convenient to use.

The invention discloses a preparation method and the construction process of a waterborne marble-imitated multicolor paint, in particular to a compounding technology and the construction process of the water-in-water type multicolor external wall paint. The paint consists of a disperse phase and a disperse medium, wherein the waterborne multicolor dispersoid containing water-soluble colloid is taken as the disperse phase and the water is taken as the disperse medium, namely the multicolor dispersoid is uniformly dispersed in the water-dispersed medium containing the film-forming substance. The wall paint has excellent wall decoration and protection performance and high performance-to-price ratio; and as the coating is thin and light and has elasticity and stain resistance, the paint can be applicable to the high-rise external walls and the external heat-preservation coating decoration, thus solving the problem that the self-weight is large in the practical application process of the marbles, the wall bricks and the glass curtain walls. In the invention, the wall paint solves the construction localization that the special spraying gun is only used for the waterborne multicolor paint, the normal spraying gun for building can be used, therefore, the construction is convenient and is easy for operation, and the wall paint has wider application prospect.

The invention discloses a nanocomposite road marking coating material. The nanocomposite road marking coating material comprises the following ingredients in parts by weight: 20-30 parts of glass powder, 6-10 parts of aluminum oxide powder, 50-80 parts of filler, 30-40 parts of epoxy resin, 15-20 parts of aqueous epoxy modified acrylate, 15-20 parts of glass micro-beads, 10-20 parts of chitin, 15-20 parts of chitosan, 20-40 parts of nano titanium white, 15-20 parts of nano zinc oxide, 10-15 parts of nano-silica, 2-4 parts of 25wt% ammonia water, 30-40 parts of acrylic emulsion and 15-20 parts of nano rare-earth self-luminous material. The invention further discloses a preparation method of the nano coating material. The nanocomposite road marking coating material disclosed by the invention is high in drying speed and long in service life, is wear-resistant and anti-fouling and has a bacterium resisting effect, and nano-materials or nano-structured ingredients are introduced into an organic coating material, so that organic and inorganic matched compositing or hybridization is realized. The advantages of organic polymers and inorganic-structured ingredients are integrated, so that the properties of the coating material are obviously improved.

The present invention relates to a preparation process of breathable fire-retardant oil-proofing water-proofing acid-proofing and anti-near-infrared polyester sailcloth. Said preparation process includes the following several steps: firstly, making permanent flame retardant treatment of polyester sailcloth, said permanent flame retardant treatment includes padding and baking, baking temperature is 170 deg.C-200deg.C, baking time is 1-10 min, coating flame retardant PU coating adhesive, making water-proofing and acid-proofing treatment, drying and baking for 1-10 min, at 170-230 deg.C, then making permanent flame retardant of base cloth, dyeing, coating flame retardant PU coating adhesive, making water-proofing, oil-proofing and acid-proofing treatment.

The invention provides an environmentally-friendly aqueous spray paint liquid, a propellent, an aerosol coated environmentally-friendly aqueous spray paint and a preparation method of the paint. The liquid comprises, by weight, 30-45 parts of aqueous resin, 5-15 parts of a pigment, 15-30 parts of a cosolvent, 20-35 parts of water and 0.5-2 parts of an assistant. The environmentally-friendly aqueous spray paint liquid adopts an aqueous resin system, so a whole paint film has a good hydrophobic and oleophobic effect, and improvement of the quality of spray paint products is facilitated; water is used to substitute parts of a solvent, so the VOC is reduced, and environmental protection is realized; and the produced environmentally-friendly aqueous spray paint has good sprayability and a high spray rate, and a film formed by the paint has high fullness, excellent hardness, adhesion, glossiness, flexibility and impact resistance, and has abundant and gorgeous colors, excellent decorative effect, good ageing resistance, and extremely good antirust and protection functions.

The invention relates to a method for generating a cryptographic key in a network. The network has a first network element (102), a second network element (104) and a network node (106), wherein the first network element can communicate with the network node via a first transmission channel (112) while the second network element can communicated with the network node via a second transmission channel (114). The method comprises, on the part of the first network element, a step of determining a first channel information on the first transmission channel based on a first pilot signal emitted from the network node, and a step of determining the symmetric cryptographic key using the first channel information and information on a combined channel information, wherein the combined channel information represents a combination of transmission characteristics of the first and the second transmission channel ( 112, 114), determined based on a second pilot signal transmitted to the network node by the second network element and a third pilot signal transmitted to the network node by the first network element at the network node side.

The present invention relates to embedded frequency varying control apparatus based on DSP for electromobile and its control method. The present invention has battery to provide the system with electric energy via a switching power module, a triphase voltage type frequency converter to constitute a DC / AC converter circuit, a gate signal isolating driver circuit to generate frequency variable AC voltage driving a triphase squirrel cage motor; a signal A / D detection interface circuit module including the feedback inputs of triphase current signal, DC voltage signal, frequency converter temperature signal, pedal accelerator signal, etc.; the DSP to read and judge the I / O signal from the driver controller for corresponding treatment and operation and to read the feedback signal for vector control or direct torsion control; and a communication module for real-time control via serial port or CAN bus. The present invention has the features of small size, light weight, simple and compact structure, high efficiency, etc.

The invention discloses a data access method and device. The data access method and device are used for improving the data access protection degree. The method comprises the steps that when a data access request from a terminal device is received, a user identification corresponding to the data access request is certified; after the user identification passes the certification, the network position of the terminal device is certified; after the network position of the terminal device passes the certification, a device identification of the terminal device is certified, and if the device identification passes the certification, the terminal device is allowed to have access to data corresponding to the data access request. The data access method and device can well prevent an attacker from having access to data with sensitive attributes, and the data access protection degree is greatly improved.

The invention relates to a privacy protection method based on a location of a moving object in road network space. The method comprises the following steps: sending location search request information to an anonymous server by a user; utilizing anonymous algorithm to finish anonymity by the anonymous server; sending an search after completion of anonymity to a serve based on a location by the anonymous server; conducting a search processing according to an anonymous request by the serve based on the location; and sending back a concentratedly selected real location to the user from searching processing results by the anonymous serve. According to the method, a false location generated through initialization is more natural and real, and in line with living habits of people; the protection for the privacy of the user is realized in the process of moving; and protection degree for the privacy of the user is improved.

The invention discloses a stone side slope biological control method which comprises the following steps of (1) side slope status analysis and safety evaluation, (2) nursery stocks pre-cultivating, (3) bird nest type layout, (4) bionic nest building, (5) formula planting and (6) community forming. The stone side slope biological control method integrates the engineering mechanics, the ecology, the aesthetics, the biotechnology and other disciplines and fields, a stable and ecological three-dimensional side slope can be quickly formed, the landscape effect is good, the ecological benefit is lasting and stable, maintenance cost is low, maintenance difficulty is low, the slope fixing effect is obvious, a protection function is outstanding, and the method is used for side slope protection of roads, railways, dams and the like, and also can be used for ecological management of desertification and stony desertification.

This invention publicized one kind to use the frequency conversion technology closed type the return route hydraulic pressure pumping unit The application frequency conversion technology control motor rotational speed, the control pumps the output current capacity, then the control pumping unit running rate, may enable the oil pump the dynamic coordination, the production increase, the energy conservation obvious: The frequency conversion velocity modulation can provide the current capacity according to the system demand the low overflow loss, how regardless of the load does change, the output all can adapt the load request change, has very strong automatic control About the use the limit switch, the speed, the position transmitter and so on, through the controller, the frequency changer realization to the electric motor and the control valve electro-magnet and so on the vector transformation control technology, the realization overloads, crosses the electric current, overvoltage, the instant loses speed and so on the protection function This invention from enhances the pumping unit the overall efficiency to embark, in reduces the pumping unit the installing equipment power, effectively uses the pumping unit under good energy at the same time, maximum limit enhances the hydraulic pump and the electrical machinery efficiency This pumping unit may widely apply to the oil field extraction

The embodiment of the invention discloses a database accessing method. The method comprises the following steps of: receiving a modifying operation request of shared data of a database, wherein the shared data of the database is mapped to address space of a process; decomposing the modifying operation request into a predetermined number of atomic operation sequences; calling atomic operation interfaces according to an execution sequence of the atomic operation sequences; and accessing the shared data, which is mapped to the address space of the process, of the database through atomic operation provided by the atomic operation interfaces. Accordingly, the embodiment of the invention also discloses a database accessing device and a database application system. In the embodiment of the invention, the modifying operation is performed on the database through the technical scheme, the shared data of the database is accessed through atomic operation for processing, and the atomic operation is not interrupted by other processes during processing, so that consistency of the data can be guaranteed, and protection level of the shared data of the multi-process embedded concurrent accessed database is improved.

The invention is applicable to the technical field of data desensitization and data sharing, and provides a data desensitization method, device, apparatus and medium for unstructured data access. Themethod comprises the steps of after the application for data access rights sent by the user has been approved, getting the corresponding user access, and then receiving the query request of the user to the unstructured data of the database, auditing the query requests for user access, after approval, based on query request, performing data query operations in databases that have user access to obtain the corresponding undesensitized data, recognizing and desensitizing the non-desensitized data by the sensitive data recognition and desensitization engine to obtain the corresponding desensitizeddata to return the desensitized data to the user, thereby realizing the access of the user to the unstructured data in the database, effectively preventing the leakage of the sensitive information inthe unstructured data, and improving the protection degree of the sensitive information in the unstructured data.

The invention discloses a personal wearable air purification balance system. The personal wearable air purification balance system comprises a wearable body and an air purification balance system body arranged on the wearable body. The air purification balance system body comprises an air filtering device, an air quality monitor, a gas release device, a pressure detecting system, a human body numerical value detecting device and a chip processor. The air filtering device, the air quality monitor, the gas release device, the pressure detecting system and the human body numerical value detecting device are all connected with the chip processor. Due to the mode, the personal wearable air purification balance system is small in structure and small in size, a user can conveniently wear the personal wearable air purification balance system at any time, and the personal wearable air purification balance system can have a good protective effect on a riding wearer.

This invention relates to a combined control device for integrated instruments and electric appliances composed of a shell with a faulty display window and labels, an electronic control circuit, an intelligent expanding module circuit, a moving and static contactor component with a current sensor at the side of a static contact bridge, an iron core, a coil and a spring, which realizes multiple kinds of protections and fault display by the electronic control circuit and has the function of power saving, a photo electric isolation technology is applied for its high voltage drive and low voltage signal circuit and the I / O expanding interface and an intelligent expansion module are applied to enrich the function of the display and control of the instrument.

The invention relates to the technical field of power equipment maintenance, in particular to a power equipment maintenance and transportation lifting device. The power equipment maintenance and transportation lifting device comprises a base, a support frame, a motor, a transmission gear, at least two screw rods and a carrier plate, wherein the support frame is fixed on the base; the screw rod isvertically arranged; one end of the screw rod is rotationally connected to the base, and the other end is rotationally connected to the support frame; the carrier plate is provided with a mounting hole corresponding to the screw rod; the carrier plate is connected with the screw rod through the mounting hole; the motor is fixed on the base; and the transmission gear is connected with the screw rodand the motor respectively. The device solves the problem of poor stability of the lifting device during lifting. Meanwhile, clamping and protection functions are added, thereby avoiding accidents, facilitating movement, improving flexibility, lowering maintenance cost, improving transportation efficiency and facilitating use.

The invention discloses blend oil rich in alpha-linolenic acid and capable of protecting the cardiovascular system. The blend oil is blended by at least five of linseed oil, eucommia seed oil, peony seed oil, purple perilla seed oil, walnut oil, tomato seed oil, safflower seed oil, acer truncatum seed oil and black sesame oil. The blend oil has the advantages that the content of the alpha-linolenic acid reaches 20-48%, the alpha-linolenic acid can convert into EPA and DHA needed by human bodies, the total content of saturated fatty acid is lower than 10%, and various fatty acids are coordinated in proportion and conform to the recommended amount of dietary nutrition guidelines; the raw material oil is obtained through cold pressing and physical refining, no chemically-synthesized antioxidant is added, and accordingly the blend oil is rich in active components capable of protecting the cardiovascular system and has an evident cardiovascular system protecting function.

The invention provides a battery protection and temperature control system. The system comprises at least two battery units which are connected, wherein each battery unit comprises a bearing structure, a casing and a battery, at least one through hole is formed in the bearing structure, the battery is accommodated in the at least one through hole, and the casing is arranged on the outer surface of the bearing structure. By means of the battery protection and temperature control system, impact and vibration to batteries are effectively relieved, damage to the battery structure is reduced, the protection function and the bearing capability of the battery protection and temperature control system are improved, and the safety and the reliability of a battery assembly are enhanced.

The invention relates to the technical field of electrostatic film, and in particular, relates to a polyvinyl chloride electrostatic film and a preparation method thereof, wherein the polyvinyl chloride electrostatic film comprises the following raw materials in parts by weight: 80-120 parts of PVC resin, 46-73 parts of a plasticizer, 1-3 parts of a heat stabilizer, 3-7 parts of an anti-electrostatic agent, 0.3-0.7 part of a gelatinizing agent, 0.02-0.03 part of a pigment powder, and 0.1-0.3 part of other auxiliary agents. The polyvinyl chloride electrostatic film has high electrostatic resistance, has high anti-electrostatic effect and protection functions, has high self-adhesive performance, and has excellent stable performance under high temperature conditions; the polyvinyl chloride electrostatic film also has the advantages of being ultra thin, tough, transparent, self-adhesive, good in transparency, small in watermarks and the like, has fewer crystal points and low-temperature resistance, and has excellent comprehensive performance.

The invention discloses provides a far infrared bamboo charcoal viscose fiber and a preparation method thereof, in order to make up for the blank of the conventional far infrared bamboo charcoal viscose fiber and solve the problem of poor spinnability of the bamboo charcoal viscose fiber. The far infrared bamboo charcoal viscose fiber is characterized in that the fiber comprises 1-10 percent by weight of far infrared ceramic powder and 0.1-10 percent by weight of bamboo charcoal, wherein the far infrared emissivity is greater than 80 percent, the ammonia absorption rate is greater than or equal to 50 percent, the permeability is greater than or equal to 500 mm / s, and the color fastness to washing is class 4-5. The far infrared bamboo charcoal viscose fiber has a heat insulation effect; the radiated far infrared also has the health-care functions of activating cell tissues and promoting the blood circulation.

Disclosed is an equalization apparatus and method based on audiogram. The equalization method includes the steps of a) outputting a reference sound having reference frequency and intensity for approximate assumption of auditory threshold, b) determining a start sound corresponding to an assumed value of the auditory threshold while calling a sound having intensity different from a prior sound at a sound source memory depending on whether a user has received an answering signal in response to the reference sound, c) outputting a first test sound whose intensity is controlled at a value set prior to the start sound, having the reference frequency, d) calling a test sound having intensity and frequency different from the prior sound at the sound source memory depending on whether the user has received the answering signal, e) storing data on reception of the answering signal of the user in response to the test sound, f) repeating the steps d) to e), g) determining the auditory threshold per previously set fiequency band using the reception data of the answering signal, and h) performing equalization depending on the auditory threshold per the determined frequency.

The invention discloses a method and a device for a trough solar heat collector to automatically track solar trace. The method comprises the following steps of: arranging a fulcrum bushing on the trough solar heat collector, fixing the fulcrum bushing on a supporting shaft of a pedestal, arranging two crankshafts on the fulcrum bushing, controlling two hydraulic cylinders to push or pull the two crankshafts to rotate around the supporting shaft via a hydraulic control device through a solar trace sensor or a DPU controller, and adjusting postures of the trough solar heat collector. The invention adopts the solar trace sensor or the DPU controller to control a solar tracking system, so the trough solar heat collector can normally work in sunny days, can also normally work in cloudy days, and can automatically return to the initial state which begins to receive thermal energy of sunlight in the morning at night. The method and the device have the advantages of good universality, high tracking accuracy, good condensation, and high heat collection efficiency.

The invention relates to a charging pile for a new energy automobile. The charging pile effectively solves the problems that an existing automobile charging pile is poor in safety protection measure and prone to being damaged. According to the technical scheme, the method comprises the following steps of: ; the new energy automobile charging pile can be contracted when not in use; external rainwater is prevented from eroding the device; when an automobile collides with the charging pile due to misoperation, the charging pile is started; firstly, the impact force acts on the first buffer plateand absorbs most impact force at the moment of automobile impact; and then the automobile acts on the second buffer plate, positioning of the protection box is relieved through the second buffer plate, when the automobile forces the protection box to slide, the wheels make contact with the multiple sets of rotating rollers and idle, the forward inertia of the automobile is weakened, and thereforedamage to the charging pile is reduced.

The invention belongs to the coating and textile function finishing field, in particular relates to a nanometer protective liquid for textile and the preparation method thereof. At present, when stain like juice, oil, etc. is splashed on textile like clothes, etc., the stain is usually difficult to remove, and textile, such as clothes, etc., does not have relative capability of antifouling. The compositions of the nanometer protective liquid of the invention are inorganic nanometer materials, organic siloxane, pseudo-perfluoroalkyl acrylate and deionized water, that means the inorganic nanometer materials are introduced while introducing low surface free energy materials. The nanometer protective liquid for textile and the preparation method thereof adopted by the invention can easily receive the nanometer protectively liquid, which can form a breathable thin layer on the surface of the textile, so that the textile can effectively prevent water, oil and stains without affecting wearing comfort of the textile and other functions, thereby improving wearing durability of the textile.

This invention relates one functional finish non-wovens fabrics of coating staining in 100% cotton and its method. The process for this new cotton non-wovens fabrics is that attach uniformly the functional finishing agent in the form of solution, slurry and bubble to the surface of the non-wovens fabrics by coating staining (the treatment of rotary screen printed James, Roll James, leaching James, bubble James, scraper, transfer, and so on), fix to surface by the pine-drying and the reaction between finish agent and fiber. By the method one cotton non-wovens fabrics in which one side it has protective function (Exhibit 1) of 'Waterproof, anti-alcohol, anti-blood, anti-oil pollution, fire-retardant, anti-rays, anti-static' and in the other side it is with the cotton Fiber characteristics of 'Suction fluid, breathable, comfortable' Compared to the current stains rolling (ie, the entire stain soaked) methods, this invention has the advantages as follows: short time for processes, flexible technology, raw materials and energy saving, low cost, rich colors, forming without damaging non-woven fabrics, non-pilling, finish agent closely attached to the non-woven fabrics without losing.

The invention discloses a portable cutting device. The portable cutting device comprises a cutting machine and a socket, wherein the cutting machine comprises a cutting table, a cutting gear and a base, the cutting gear is embedded into the cutting table and is connected with the cutting table in a rotating and matching way, the base is arranged at a bottom part of the cutting table, a pin is arranged at a bottom part of the socket, a power line is arranged at a bottom part of the pin and is connected with a bottom surface of a rear side of the base, an accommodating bin is arranged at a bottom part of the socket, sliding grooves are formed in a left side and a right side of the accommodating bin, studs are arranged in the sliding grooves, top parts of the studs are connected with a motor, a lifting plate is arranged in the accommodating bin, two side ends of the lifting plate penetrate through the sliding grooves and are in threaded connection with the studs in a matching way, a lifting block is arranged at a bottom part of the lifting plate, the bottom part of the lifting block penetrates through a bottom wall of the socket and is movably connected with the bottom wall of the socket in a matching way, first sliding grooves are symmetrically formed in a left part and a right part of the lifting block, hole grooves are formed in top parts of the first sliding grooves, and a connection groove is formed in an end surface of the bottom part of the lifting block. The portable cutting device is simple in structure and high in safety, and is convenient to operate, and automatic connection power supply can be achieved.