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4894results about How to "Reduce types" patented technology

Auctioning of message delivery opportunities in a location-based services system

Location-based services are provided in a communication system comprising at least a portion of at least one wireless network. In one aspect of the invention, one or more interested parties are permitted to bid on available opportunities for delivery of messages to mobile user devices, and delivery of at least one message to a given one of the mobile user devices is controlled based on user profile information and at least one received bid for a corresponding message delivery opportunity. The message delivery opportunities may be specified as combinations of two or more of a message category, a location for message delivery and a time for message delivery. For example, a given message delivery opportunity may be a category-location-time combination.
Owner:IDPA HLDG

Provision of location-based services utilizing user movement statistics

Location-based services are provided in a communication system comprising at least a portion of at least one wireless network. One aspect of the invention relates to generation of user movement statistics that may be utilized to facilitate the development of targeted marketing campaigns or other types of message delivery. In this aspect, the user movement statistics are generated based on location and profile information for mobile user devices, and delivery of at least one message to a given one of the mobile user devices is controlled based on the user movement statistics. The user movement statistics may comprise, for example, information sufficient to determine approximately how many users having particular designated characteristics are likely to be in a given location at a given time, and may be utilized to determine prices charged for delivery of messages to the mobile user devices.
Owner:IDPA HLDG

Methods and apparatus for providing location-based services in a wireless communication system

Location-based services are provided in a communication system comprising at least a portion of at least one wireless network. In one aspect of the invention, profile information is obtained for users associated with respective mobile user devices, and location and presence information is obtained for the mobile user devices. Delivery of at least one message to a given one of the mobile user devices is controlled based on a combination of the location, presence and profile information.
Owner:IDPA HLDG

Wire grid polarized and liquid crystal display device using the same

ActiveUS20080094547A1Brightness in display can be increasedLow costPolarising elementsNon-linear opticsLiquid-crystal displayOptical property
An image is displayed by modulating TM-polarized light between the polarizer 2 and the wire grid polarizer 18 through the variation of the optical characteristic of the liquid crystal layer 12 interposed between the transparent plate 4 and the transparent plate 26. Degradation of contrast in the bright ambience is avoided by providing an absorption layer for absorbing TE-polarized light on that surface of the wire grid polarizer 18 which faces the liquid crystal layer 12.
Owner:PANASONIC LIQUID CRYSTAL DISPLAY CO LTD +1

Solid state light fixture with cooling system with heat rejection management

Systems and methods for solid-state light source heat management are provided. A solid-state light source, e.g. having one or more LEDs, can be mounted within an enclosure. In some embodiments, a heat sink associated with semiconductor material and / or power electronics can be placed on a separate side of the enclosure that is thermally insulated or separated from the state-light source. The enclosure can include a first side or portion that allows light from the solid-state-light source (e.g., LEDs) to pass through to a target area. A fluid transfer conduit may be connected to the second side or portion of the enclosure for passing a fluid (e.g., air, water, coolant, etc.) across the heat sink to transport heat generated by the power electronics and / or semiconductor material away. The heated fluid can then be routed to, as examples, an HVAC system, a vent, water heating systems, heat exchanger systems, and / or storage systems (e.g., batteries).
Owner:MUSCO

Provision of location-based services utilizing user movement statistics

Location-based services are provided in a communication system comprising at least a portion of at least one wireless network. One aspect of the invention relates to generation of user movement statistics that may be utilized to facilitate the development of targeted marketing campaigns or other types of message delivery. In this aspect, the user movement statistics are generated based on location and profile information for mobile user devices, and delivery of at least one message to a given one of the mobile user devices is controlled based on the user movement statistics. The user movement statistics may comprise, for example, information sufficient to determine approximately how many users having particular designated characteristics are likely to be in a given location at a given time, and may be utilized to determine prices charged for delivery of messages to the mobile user devices.
Owner:IDPA HLDG

Infrared touch screen and its multi-point touch positioning method

The invention discloses an infrared touch screen and multi-point touch positioning method. That is, at least one touch-screen direction detection, a set of infrared emission scanning circuit corresponding two infrared receiver scanning circuit; a set of infrared emission scanning circuit of an infrared launching the beam of light emitted by the components of a scanning infrared receiver circuit in an infrared receiver components of the receiver at the same time, in the receiving area also receive another set of infrared scanning circuit components of the receiver to receive an infrared detection in infrared touch screen The algorithm process that could be used to determine in advance the scope of touch point touch-point detection algorithm module. The present invention generally use the touch position detection algorithm is a touch location coordinates point to touch another pre-detection algorithm to determine touch point in the region, in combination with detection algorithm is usually the touch location coordinates. The invention can identify two or more touch operation, while more effective identification can touch position.
Owner:GUANGDONG VTRON TECH CO LTD

Infra red touch screen and multiple point touching positioning method

This invention discloses an infrared touching screen and the multi-spot touching localization method, in an examination direction, the ray of light send out by the infrared emission part on the infrared emission sweep circuit not only can be received at least by one infrared sweep circuit's infrared receive part which is vertical to the part's position, but may also be received by another inclined relative infrared receive sweep circuit's infrared receive part at least which is deviated vertical to the part's position. Thus, in a scanning period, the ray of light send out by an infrared emission part may be received by two different position infrared receive parts in the different time, through a checking calculation between touching possible coordinate figure and location parameter, then may determine each touching position data, this invention realizes the multi-spot localization scanning examination method to be simple, the touching position data computation convenient, accurate, reliable, the circuit wafer type is few, the shape is rule, easy to realize the large scale production, does not have the complex succession corresponding relationships, easy to realize.
Owner:GUANGDONG VTRON TECH CO LTD

Avionics system automatic test platform based on reusable spacecraft

The invention discloses an avionics system automatic test platform based on a reusable spacecraft, which comprises an interface adapter, special test equipment, a photoelectric isolation network and a test terminal. According to the characteristics that the spacecraft has many subsystems and the subsystems are distributed dispersedly, the avionics system automatic test platform based on the reusable spacecraft unifies the adapter of the comprehensive test platform, reduces the types of ground equipment, realizes functional modularization of each system and integration of the system structure, and can automatically generate and change input signals or excitation sources, automatically control the on and off of input and output of a tested object, automatically measure and record output signals, automatically process test data, automatically interpret the work state of test equipment, automatically execute test program and automatically judge the test data so as to shorten the construction time of a test system and solve the problem about distributed remote test. The test system has high generality, flexibility and test efficiency, reduces the workload of testers and improves the test quality and the test efficiency.
Owner:CHINA ACAD OF LAUNCH VEHICLE TECH

Broadcast channel delivery of location-based services information

Location-based services are provided in a communication system comprising at least a portion of at least one wireless network. In one aspect of the invention, mobile user devices that are located within a common geographic area are identified, and location-based service information is delivered to the identified mobile user devices over a broadcast channel shared by those mobile user devices. A response to the location-based service information maybe received from at least a given one of the mobile user devices, and at least one message maybe controllably delivered to the given one of the mobile user devices based on the response to the location-based service information.
Owner:DRNC HLDG INC

Backup clock calibrated by GPS

The invention provides an adder-based backup clock calibrated by a GPS. The adder-based backup clock comprises a GPS receiver, a singlechip, a crystal oscillator, a programmable logic device and a time-digital converter (TDC) which are connected in sequence. The frequency of the crystal oscillator is divided into second pulse output by an adder-based clock circuit realized in the programmable logic device, wherein the frequency dividing ratio of the clock circuit can be finely adjusted. By utilizing the characteristic that 1PPS second pulse signals output by the GPS receiver has a random jitter error but no accumulation error while a second pulse generated after the frequency division of the high-stability crystal oscillator has good temporary stability but the accumulation error, the time-digital converter (TDC) is adopted to measure a phase difference between the two second pulses and filter measurement results of multiple times so as to calculate an accuracy error value of the frequency of the crystal oscillator, the error value is converted into a clock step fine-adjusting value and the frequency dividing ratio of the circuit is adjusted to compensate an accuracy error of the crystal oscillator generated by aging so as to realize high-precision backup. The backup clock has the advantages of full digitalization, simple structure, convenient integration and the like.
Owner:HUAZHONG UNIV OF SCI & TECH

Sound absorbing material preparation method, sound absorbing material and loudspeaker

ActiveCN105516880ARaw material type and grade requirements are reducedSimple preparation processElectrical transducersLoudspeakerAcoustic effect
The invention discloses a sound absorbing material preparation method, a sound absorbing material and a loudspeaker. The method comprises the following steps of preparing non-foamed material slurry, and mixing uniformly; performing reaction on the non-foamed material to form non-foamed sound absorbing material powder with the FER or MFI structure; performing heteroatom replacement on the non-foamed sound absorbing material powder; adding binder into the modified non-foamed sound absorbing material powder; shaping, drying and calcining the non-foamed sound absorbing material, and thereby obtaining the non-foamed sound absorbing material with a set grain size, wherein the mass ratio of silicon and aluminum in the non-foamed sound absorbing material is less than 200. The sound absorbing material is prepared by the non-foamed material, and the mass ratio of silicon and aluminum in the prepared non-foamed sound absorbing material powder is less than 200. The rear vocal cavity of the loudspeaker is filled with the sound absorbing material provided by the invention. The method is low in requirements on material category and grade and simple in technology; and the material prepared by the method is good in absorbing ability and slow in aging. The loudspeaker has good acoustic effect.
Owner:GOERTEK INC

A kind of preparation method of graphene and manganese dioxide nanocomposite material

The invention relates to a preparation method of a graphene and manganese dioxide nanocomposite material, comprising: (1) stirring and mixing graphite, potassium nitrate and concentrated sulfur evenly, adding potassium permanganate, and reacting at 30-40° C. for 20-40 minutes , add deionized water at room temperature, add hydrogen peroxide after reacting for 15 to 30 minutes to obtain graphite oxide; (2) disperse the above graphite oxide in water, add hydrazine hydrate, and react at 95°C for 1 to 24 hours to obtain graphene (3) ultrasonically disperse the graphene in a saturated potassium permanganate solution, add acid, and react at 60-80° C. for 1-5 hours to obtain graphene and manganese dioxide nanocomposite material. The invention has the advantages of simple reaction, easy control, convenient operation and simple process; the obtained composite material has broad application prospects and can be used for catalysts, biosensing materials, electrode materials of lithium ion batteries and supercapacitor electrode materials, and the like.
Owner:DONGHUA UNIV

Auctioning of message delivery opportunities in a location-based services system

Location-based services are provided in a communication system comprising at least a portion of at least one wireless network. In one aspect of the invention, one or more interested parties are permitted to bid on available opportunities for delivery of messages to mobile user devices, and delivery of at least one message to a given one of the mobile user devices is controlled based on user profile information and at least one received bid for a corresponding message delivery opportunity. The message delivery opportunities may be specified as combinations of two or more of a message category, a location for message delivery and a time for message delivery. For example, a given message delivery opportunity may be a category-location-time combination.
Owner:IDPA HLDG

Compound feed for teaching piglets to eat foods other than breast milk

InactiveCN102178115AHealthy micro-ecological balance environmentAvoid damageFood processingAnimal feeding stuffDiseaseSucrose
The invention provides compound feed for teaching piglets to eat foods other than breast milk, which is used for weaning piglets and teaching the piglets to eat foods other than breast milk, and comprises the following components in part by weight: 212.4 parts of corn starch, 154.0 parts of bulked corn, 100.0 parts of 46 percent of bulked bean pulp, 40 parts of fish meal, 100 parts of wheat flour, 5 parts of calcium powder, 21 parts of calcium hydrophosphate, 2 parts of table salt, 20 parts of soybean oil, 5 parts of lysine, 2 parts of threonine, 1.5 parts of choline chloride, 10 parts of premix, 0.2 part of complex enzyme, 0.3 part of pig Duowei, 0.2 part of sweetener, 0.3 part of flavouring agent, 3 parts of baking soda, 20 parts of cane sugar, 30 parts of glucose, 50 parts of egg powder, 70 parts of soy protein concentrate, 50 parts of fermented bean pulp, 6 parts of acidizer, 100 parts of whey powder, 0.5 part of mould removing agent, 0.3 part of antioxidant and 0.3 part of mildewpreventive. In the invention, the problems of incomplete immune functions, low disease resistance, inadequate digestive ferment, incomplete upper gastrointestinal development, low digestion and absorption ability, susceptibility to diarrhea and the like of piglets.
Owner:AGRI SCI & TECH INST CO LTD OF CHENGDU WEST HOPE GRP

Method and apparatus for efficiently locating and automatically correcting certain violations in a complex existing circuit layout

An exemplary CAD design flow modifies an existing large scale chip layout to reinforce the redundant via design rules to improve the yield and reliability. The flow operates on each metal-via pair from bottom up to locate and correct isolated via rule violations by adding metal features and vias in a respective patch cell associated with each cluster cell. A large complex design is thus divided into cells so that multiple processes can work concurrently as if every process were working on the top level of the design layout.
Owner:ORACLE INT CORP

Medlar and red date enzyme and preparation method thereof

The invention discloses a medlar and red date enzyme and a preparation method thereof, which belong to the technical field of enzyme preparation. Multi-strain composite fungi powder is adopted as a leavening agent; the medlar and the red date are adopted as main raw materials; dietary fiber, pectin hydrolyzate, seasoner extracting liquor, Chinese herbal medicine extracting liquor, enzyme stabilizer and other multifunctional auxiliary raw materials are scientifically compounded and modified; low-temperature processing technology such as ultrasonic cleaning, cryogenic grinding, microwave-assisted high-voltage pulse electric field processing and ultrasonic ripening are mainly adopted in the whole process, so that the natural colors, the flavor, the taste and the content of the active materials of the medlar and the red date are maintained furthest, the biological stability, the non-biological stability and the biological activity of the medlar and red date enzyme are obviously enhanced, the introduction of chemical addition agent is reduced, and the juicing rate of the medlar and the red date as well as the food safety of the enzyme are improved. Finally, the medlar and red date enzyme with high biological activity, strong stability, strong taste, flavor and appetite, long expiration date and edible safety is prepared.
Owner:NINGXIA JINSHANGQI BIOTECH

Middle ear implant and method

An improved middle ear implant and method are disclosed. The invention particularly relates to magnetic implants and to attachment devices and methods for mounting a magnet in the middle ear of a patient. The implant comprises a wire-form and a magnet disposed in a housing. The method may comprise the steps of: positioning a magnet in optimal alignment; and attaching said magnet to an ossicle in the middle ear. The method may further comprise the step of using a wire-form to attach the implant to the ossicle. Still further, the method may comprise the step of anchoring the implant to the ossicle with biological cement.
Owner:OTOTRONIX

CRISPR-Cas9 system used for assembling DNA and DNA assembly method

InactiveCN105821072ARepeatableSuccessfully synthesizedFungiMicroorganism based processesReporter geneGuide RNA
The invention discloses a CRISPR-Cas9 system used for assembling DNA and a DNA assembly method. The CRISPR-Cas9 system includes the following parts: a plasmid used for expressing Cas9 gene, a first guide RNA, and / or a plasmid used for expressing the first guide RNA, wherein the first guide RNA has a CRISPR site. The CRISPR site is combined with a first reporter gene carried by a semisynthetic chromosome used for assembling according to base complementation pairing rule. The CRISPR-Cas9 system has advantages of high replacement success rate of homologous recombination, less species of guide RNA which needs to design and use, less harmful effect subjected by the genomic sequence, and low off-target rate.
Owner:SHENZHEN HUADA GENE INST

Solid propping agent for oil-gas well fractrue

InactiveCN1508390ALess types of raw materialsSimple ingredientsFluid removalCeramic particleAluminium
The invention is about to improve the solid ceramic particle proppant of deep oil and gas well fracturing technique, the solid proppant composed of crude bauxitic clay fine powder and 6-10wt% manganese dioxide mineral fine powder. The manganese dioxide reacts with the bauxitic clay main material more completely under high temperature, largely reducing glass phase, and beneficial to raise the compactness of the resultant at the same time, able to largely heighten the guide-flow ability. The solid proppant: bulking density 1.65-1.8g / cu cm, apparent density 3.0-3.15g / cu cm, and breaking resistance (SY / T5108-1997) 86MPa not greater than 10%, the maximum able to reach 100MPa not greater than 10%.
Owner:宜兴东方石油支撑剂有限公司

Fine flaky-cryptocrystalline mixed graphite separation technique

The invention discloses a fine flaky-cryptocrystalline mixed graphite separation technique which comprises the following steps: primary rough grinding and rough separation, quintic regrinding and sextic concentrating, and middling centralized processing. According to the technique, in the rough separation step, the grinding fineness is -0.074mm, and the content is 90-95%; in the concentrating step, the regrinding fineness is -0.045mm, and the content is 90-95%; and thus, the graphite monomer is sufficiently dissociated, thereby sufficiently ensuring the fixed carbon content and recovery rate of the concentrated concentrate. The technique adopts gradually decreased low concentrating concentrations in multiple concentrating process to ensure the dispersity of ore slurry, thereby solving thesevere problem of entrapped impurities in floatation foam; and thus, in the final concentrate, the fixed carbon content is 91.35%, and the recovery rate is 91.30%, thereby solving the problems of lowtechnical indexes, low grade, low recovery rate and high cost in the fine flaky-cryptocrystalline mixed graphite concentrate separation, so that the fine flaky-cryptocrystalline mixed graphite ores are utilized in an efficient, economical and reasonable way.
Owner:SICHUAN PILOT GRAPHITE PROD

Alloy vermicular cast iron glass mold material and preparation method thereof

The invention relates to an alloy vermicular cast iron glass mold material and a preparation method thereof, and belongs to the field of glass mold manufacturing. The alloy vermicular cast iron glass mold material comprises the following chemical elements in percentage by mass: 3.5-3.6% of carbon, 2.9-3.0% of silicon, 0.4-0.5% of manganese, 0.4-0.5% of molybdenum, less than 0.15% of vanadium, less than 0.10% of titanium, 0.3-0.4% of chromium, 0.4-0.5% of nickel, less than 0.05% of phosphorus, less than 0.03% of sulfur and the balance of iron. The invention has the following advantages: the reasonable selection of the metal elements and the mass percents thereof is beneficial to saving noble metal materials and reducing the variety of the used noble metal elements; the selected alloy elements have a favorable solution strengthening effect, thereby being beneficial to enhancing the strength of the iron element under a high-temperature environment and then prolonging the service life of the glass mold; and the preparation method provided by the invention is beneficial to the dispersion and distribution of second-phase carbides in grain boundaries, so that the grain boundaries can be strengthened, and the creep strength can be improved.
Owner:ORI MOLD TECH SUZHOU

Strong-inhibition and strong-blockage aluminum-based anti-collapse water-based drilling fluid

The invention discloses a novel aluminum-based anti-collapse agent and provides a strong-inhibition and strong-blockage aluminum-based anti-collapse water-based drilling fluid system by combining the performance requirement of drilling fluid based on the novel aluminum-based anti-collapse agent. The strong-inhibition and strong-blockage aluminum-based anti-collapse water-based drilling fluid contains the following substances in parts by weight: 100 parts of fresh water, 4 parts of sodium bentonite, 0.1-1 part of a coating inhibitor, 0.3-5 parts of a strong amine inhibitor, 0.5-5 parts of a filtrate reducer, 0.3-1 part of a thickening agent, 1-5 parts of a lubricating agent and 0.5-5 parts of an efficient aluminum-based blocking agent. The key technique of the invention is to provide use of the aluminum-based anti-collapse agent as a mud rock blocking anti-collapse agent in drilling fluid. After an aluminum-based blockage anti-collapse agent acts with a rock core with same thickness, the time required for transferring differential pressure of 1MPa is substantially shortened in comparison with the time (about 1.5 hours) required for transferring differential pressure in a blank rock core, so that the aluminum-based blockage anti-collapse agent has excellent blockage performance. Compared with the prior art, the strong-inhibition and strong-blockage aluminum-based anti-collapse water-based drilling fluid has the following advantages that (1) an amine inhibitor has prominent inhibition performance, and the hydration dispersion inhibition capacity of shale of the drilling fluid system is strong; (2) the anti-collapse agent has prominent inhibition performance and strong blockage anti-collapse capacity, and the hydration expansion inhibition capacity of shale of the drilling fluid system is strong; (3) the water-based drilling fluid system has relatively good rheological property and strong temperature resistance, salt resistance and calcium and inferior soil pollution resistance; and (4) the system contains less treating agents and is simple to prepare and convenient to maintain.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA) +1

Waste rubber powder modified asphalt composition and its preparation method

ActiveCN1765998AUniform dispersion stabilityUniform storage stabilityBuilding insulationsWaste rubberDiluent
The invention provides a method to improve the storage stability for waste rubber powder modified asphalt. Wherein, the opposite compound comprises: 70~98.5% basic asphalt, 1~29.5% waste rubber, 0~10.0% diluent, and 0.1~5.0% coupling agent. The method comprises: adding the agents with given ratio into the waste rubber powder past 60-item screen to mix evenly; adding the treated rubber powder into asphalt to grinde for 30~190min by special device. As the alkoxy in coupling agent can form chemical bonding with inorganic filler to form organic active monomolecular layer between interfaces, this product can improve obviously the storage stability.
Owner:CHINA PETROLEUM & CHEM CORP +1

Chassis type automatic electric automobile battery changing station

InactiveCN106627513AOvercome the problem of only charging but not replacing the batteryLarge amount of workCharging stationsElectric propulsion mountingElectricityTest battery
The invention belongs to the field of electric automobile battery change and relates to a chassis type automatic electric automobile battery changing station. The chassis type automatic electric automobile battery changing station comprises a battery changing robot, a transfer machine, a charging frame and a charging machine. The battery changing robot is located on one side of the charging frame, and the charging machine is located on the other side of the charging frame. A transfer track in the advancing direction of an electric automobile is arranged between the battery changing robot and the charging frame. The transfer machine is located on the transfer track. The chassis type automatic electric passenger vehicle battery changing station can automatically take down batteries lack of electricity from an electric automobile, put in batteries full of electricity and automatically charge the batteries lack of electricity. Especially for large-scale and heavy-type batteries, the problem that the batteries can be charged but cannot be changed is solved, the batteries are protected, and a reference basis is provided for development of new energy automobile battery changing modes.
Owner:XIAN AEROSPACE PRECISION ELECTROMECHANICAL INST

Three-layer coextrusion heavy packaging membrane and fabrication method thereof

The invention relates to the technical field of heavy packaging membranes, in particular to a three-layer coextrusion heavy packaging membrane and a fabrication method thereof. An inner layer of the three-layer coextrusion heavy packaging membrane contains LLDPE (linear low density polyethylene) and m-LLDPE (metallocene-linear low density polyethylene); a middle layer thereof contains m-LLDPE, LLDPE, MDPE (medium density polyethylene), EVA (ethylene-vinyl acetate) and a color masterbatch; and an outer layer thereof contains LLDPE, LDPE (low density polyethylene) and m-LLDPE. The fabrication method of the three-layer coextrusion heavy packaging membrane adopts the proportioning, and a product is fabricated on a certain technological condition. Compared with the prior art, the membrane has the characteristics that the membrane is excellent in mechanical property and good in deflexion; a skin-friction coefficient of the membrane is moderate; and a heat-seal window can reach 180 minus / plus 50 DEG C. The membrane can fully meet the requirement of normal use of downstream packaging, is particularly suitable for high-speed FFS (form-fill-seal) packaging, and has a good economic benefit and a social benefit.
Owner:GUANGDONG SUNION CHEM & PLASTIC

Process for Producing Molten Iron and Apparatus Therefor

A bedding carbonaceous material is charged onto a hearth of a rotary hearth furnace, carbonaceous-material containing pellets containing powdery iron ore and powdery coal are placed on the bedding carbonaceous material, and the hearth is caused to pass inside the rotary hearth furnace to heat and reduce the carbonaceous-material containing pellets to solid reduced iron and to heat and dry the bedding carbonaceous material by distillation into char. Subsequently, the solid reduced iron and the char are charged into an iron-melting furnace without being substantially cooled, and an oxygen gas is blown into the iron-melting furnace to melt the solid reduced iron, thereby obtaining molten iron. At least a part of an exhaust gas from the iron-melting furnace is used as a fuel gas for the rotary hearth furnace after being cooled and having dust removed.
Owner:KOBE STEEL LTD

Transparent support for organic light emitting device

InactiveUS7298072B2Enhanced impermeability to oxygenImprove water impermeabilityIncadescent body mountings/supportElectrode assembly support/mounting/spacing/insulationOragenePhotochemistry
An improved transparent support substrate in an organic light emitting diode (OLED) device comprises an organic polymer support film and a composite layer on the support film which is disposed intermediate the support film and the diodes of the OLED; the composite layer has first and second discrete coating layers bonded together in opposed facing relationship; the layers are of material impermeable to oxygen and water vapor but contain inadvertent discontinuities which result in discontinuity-controlled permeation of oxygen and water vapor.
Owner:BEIJING XIAOMI MOBILE SOFTWARE CO LTD

Copper base particle reinforced friction material

The invention discloses a reinforced friction material of copper-based particle in the friction material making domain, which comprises the following parts: 30-70% Cu, 4-11% Sn, 1-15% Al, 5-18% Fe, 2-15% Al2O3, 2-15% SiO2, 0-15% ferrochrome and 5-20% graphite.
Owner:大连远通制动制品有限公司
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