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547 results about "Contact condition" patented technology

Encapsulated active materials

The invention is an encapsulated active agent comprising an active agent encapsulated in a crystallizable or thermoplastic polymer wherein the particle size of the encapsulated active agent is 3,000 microns or less wherein the active agent is not significantly extractable from the particles under ambient conditions. In another embodiment the invention is a process for preparing an encapsulated agent which comprises a) contacting an active agent with a crystallizable or thermoplastic polymer wherein the polymer is molten and the active agent in not volatile under the contacting conditions; b) forming particles of about 3000 microns or less; and c) exposing the particles to conditions such that the portion of the particle at and near the surface undergoes rapid solidification. The encapsulated active agents of the invention do not require washing in order for them to be stable in curable compositions. These encapsulated active agents can be designed to release the active agent at a desired temperature. The encapsulated agents of the invention demonstrate excellent stability at ambient temperatures and exhibit relatively rapid reactivity upon release of the active agent. Furthermore, the presence of the encapsulating agent does not result in deterioration of adhesive or elastomer properties of a cured composition after preparation.
Owner:LANDEC +1

Optical measurement system and method for three-dimensional shape of large-scale complex curved surface member

The invention provides an optical measurement system and method for a three-dimensional shape of a large-scale complex curved surface member. The method is based on binocular optical grating projection measurement technologies, point cloud poses of all station positions during multiple station position measurement are obtained via a laser tracker and a corresponding target ball, point cloud obtained via the multiple station position measurement is converted to be under a unified laser tracker coordinate system according to corresponding pose data, and overall merging of point cloud data of a large-scale complex surface-shaped member can be realized; in the system, a six degree-of-freedom robot is used as a carrier for a point cloud space pose tracking unit and a binocular structured light measurement device, single station position measurement precision is ensured via calibration of the binocular structured light measurement device before measurement work starts, and data integrity and measurement efficiency are ensured via measurement route planning. Via the optical measurement system and method, all kinds of large-scale complex surface-shaped members can be accurately measured in non-contact conditions; practical, reliable and complete original three dimensional shape data can be provided for evaluation of all kinds of processing quality.
Owner:SHANGHAI JIAO TONG UNIV

Bioelectrical impedance measuring apparatus

There is provided an apparatus capable of carrying out an accurate bioelectrical impedance measurement by determining whether contact of a living body with electrodes used at the time of the bioelectrical impedance measurement is normal or not more accurately. The apparatus uses a parameter associated with a phase difference in determining the contact condition of the living body with the electrodes. As the parameter associated with a phase difference, the apparatus uses a value represented by X / R wherein R is a resistance component in a bioelectrical impedance to be measured and X is a reactance component in the bioelectrical impedance and determines that contact of the living body with the electrodes is not normal when the value of X / R is out of a determination range such as a<X / R<b (a and b are real numbers).
Owner:TANITA CORP

Fixing unit and image forming apparatus using same

A fixing unit includes a fixing member, a pressing member, a heating device, a sheet width detector, and a heating area adjustor. The pressing member faces the fixing member to form a fixing nip between the fixing member. An un-fixed toner image is fixed on a recording medium when the recording medium passes through the fixing nip. The heating device heats the fixing member while maintaining a non-contact condition with the fixing member. The sheet width detector detects sheet width of the recording medium. The heating area adjustor changes a heating area of the fixing member, heatable by the heating device, based on the sheet width detected by the sheet width detector. The heating area adjustor is moveable in a space between the fixing member and the heating device along a sheet width direction to change a size of the heating area.
Owner:RICOH KK

Methods for producing a total product with selective hydrocarbon production

Methods of producing a total product are described. A method includes contacting a feed with a hydrogen source in the presence of one or more inorganic salt catalysts and steam to produce a total product; and controlling contacting conditions such that the conversion of feed to hydrocarbon gas and hydrocarbon liquid in the total product is between 5% and 50%, based on the molar amount of carbon in the feed.
Owner:SHELL OIL CO

Probe apparatus

A probe apparatus 1 includes displacement detection means 6 disposed on a surface 4a of a probe card 4 from which probing needles 41 of the probe card 4 protrude, and control means 5 for receiving a signal of a positional change of the probe card 4 from the displacement detection means or a positional change on the stage side, or signals of positional changes of both of them and moving a stage 2 in a Z axis direction. The displacement detection means detects on the real time basis the positional change of the probe card due to influences of heat, etc, moves the stage to correct the positional change and keeps the contact condition between probing needles of the probe card and electrode pads of a wafer 10 always constant.
Owner:TOKYO SEIMITSU

Method for predicting multiaxial fatigue of automobile rear suspension

The invention discloses a method for predicting multiaxial fatigue of an automobile rear suspension, which comprises the following steps: performing rear suspension elastic plasticity finite element analysis based on a uniaxial cyclic stress-strain relationship, performing biaxiality analysis on the rear suspension, determining a rear suspension bearing multiaxial nonproportional load condition and possible crack propagation form thereof, and selecting a Bannantine model and a Wang-Brown model based on a critical plane method to test the multiaxial fatigue life of the rear suspension. The method has the advantages of avoiding the problem that an actual load condition of the automobile rear suspension cannot be truly considered in the conventional uniaxial fatigue life test, considering nonlinear factors of a rear suspension structure, rubber connecting elements and wheel tyres, contacting condition of the tyres and the ground and the like, and improving calculation accuracy.
Owner:TONGJI UNIV

Rail vehicle compartment state non-contact detection device and method

The invention discloses a rail vehicle compartment state non-contact detection device and method. The device comprises three groups of data acquisition units, each of which is formed by a laser scanner and a high-definition camera, and a control unit for carrying out image identification processing on data collected by the data acquisition units. The data acquisition units collect relevant data of rail vehicles and send the data to the control unit; and the control unit is used for carrying out training with compartment surface contour and image data being as samples through an image recognition algorithm based on a deep belief network model, and carrying out fast and accurate detection on each compartment under a non-contact condition. The device and method can judge vehicle arrival, measure vehicle speed, identify compartment types, reduce a three-dimensional image of each compartment, judge overlimit and load information of each compartment, identify compartment cargo kind and covering information and detect opening and closing state of a compartment door and damage degree of a door lock and the like, so that detection efficiency is greatly improved, and operating personnel are free from tedious operation.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Fluidized bed reactor

The invention discloses a fluidized bed reactor which comprises a reactor shell and a three-phase separator, the three-phase separator is arranged at the upper part inside the reactor shell and is of a sleeve structure comprising an inner sleeve and an outer sleeve, the upper ends and lower ends of the inner sleeve and the outer sleeve are both of opening structures, the inner sleeve and the outer sleeve are respectively composed of an upper section and a lower section, the upper sections of the inner sleeve and the outer sleeve are in reverse frustum structures, and the lower sections of the inner sleeve and the outer sleeve are in frustum structures. By designing a novel three-phase separating structure, the invention can further improve separating effect, reduce catalyst carrying-out amount, and enhance the operation elasticity of the three-phase separator. The reactor is mainly applicable to chemical reactions between liquid and gas substances of different types and solid particles under contact condition, and has the advantages of large catalyst inventory, high reactor use ratio, simple structure, easy operation and the like.
Owner:CHINA PETROLEUM & CHEM CORP +1

Electric lubricating grease and preparation method thereof

The invention relates to electric lubricating grease and a preparation method thereof, and in particular relates to electric lubricating grease used for a terminal in the electric locomotive and power industries and a preparation method thereof. A fatty acid soap-type thickening agent is weighed in proportion and is added into base oil to be mixed, stirring and slow heating are carried out, then the base oil is continuously added, stirring and heating are continuously carried out, and then the base oil is added, and mixing is carried out and homogenizing by virtue of a homogenizer or grinding by virtue of a grinding machine is carried out, thus base ester is obtained; and an anti-oxidation additive, an anti-corrosion additive, an anti-rust additive, a conductive additive and an anti-static additive are sequentially added into the obtained base ester and mixed; and then the mixture is homogenized by virtue of the homogenizer or ground by virtue of the grinding machine; and finally filtering and packaging are carried out to obtain the electric lubricating grease product. The lubricating grease provided by the invention has excellent conductive performance, contact condition of an electric contact is effectively improved, and antiseptic and antirust performances of the electric contact are obviously improved. The electric lubricating grease product can be widely applied to the electric contact of an electric locomotive and a power supply system.
Owner:无锡中石油润滑脂有限责任公司

Method and device for detecting overheat faults of GIS (Gas Insulated Switchgear) busbar joints

The invention provides a method and device for detecting the overheat faults of GIS (Gas Insulated Switchgear) busbar joints. The method comprises the following steps of: establishing a function equation according to a relation among the shell temperature value, contact resistance value, load current value and environmental temperature value of a GIS busbar joint under typical bad contact conditions; carrying out regular polling according to a preset temperature polling cycle, measuring the shell temperature value, load current value and environmental temperature value of the GIS busbar joint in the current cycle, and according to the function equation, calculating the polling contact resistance value of the GIS busbar joint; and comparing the polling contact resistance value with a contact resistance value of the GIS busbar joint under normal contact conditions so as to judge whether a fault occurs. According to the method and device for detecting the overheat faults of GIS busbar joints, provided by the invention, a situation whether a fault occurs is judged according to the contact resistance, so that the overheat faults of GIS busbar joints can be detected more effectively, and an effect of ensuring the safe and stable operation of a power system can be facilitated.
Owner:FOSHAN POWER SUPPLY BUREAU GUANGDONG POWER GRID +1

Methods for producing a total product with minimal uptake of hydrogen

Methods of producing a total product are described. A method includes contacting a feed with light hydrocarbons in the presence of one or more inorganic salt catalysts and steam to produce a total product; controlling contacting conditions such that at least 50% of the light hydrocarbons are recovered; and producing a total product, wherein the ratio of atomic hydrogen to carbon (H / C) in the total product is between 80% and 120% of the atomic H / C of the feed.
Owner:SHELL OIL CO

Flat plate type vacuum pulsation drying machine

The invention belongs to the technical field of agriculture product processing, and particularly relates to a flat plate type vacuum pulsation drying machine. The flat plate type vacuum pulsation drying machine comprises a machine body, a control unit, a material drying unit and a pulsation vacuum unit, wherein the material drying unit is provided with multiple layers of material shelves. According to the flat plate type vacuum pulsation drying machine disclosed by the invention, a heating part adopts special electric heating plates, so that the processing is simple and convenient, the cost is low, the heating temperature is uniform, and the manufacturing cost, the using cost and the maintaining cost of the drying machine are greatly reduced; through a hierarchical control mode, corresponding heating plates can be opened according to actual processing amount, so that the energy consumption is reduced; meanwhile, soft material trays are adopted, so that the contact conditions between the material trays and the heating plates are remarkably improved, the quality of dried products can be effectively ensured, and the problem that the soft material trays are inconvenient to move is overcome by using a dedicated material tray shovel to assemble and disassemble the material trays; in addition, the flat plate type vacuum pulsation drying machine belongs to static drying, the breakage of materials cannot be caused; the processing and loading capacity of equipment can be effectively increased by virtue of a multi-layer structure.
Owner:CHINA AGRI UNIV

Chemical plating material and preparation method thereof

The invention discloses a chemical plating material, which comprises a plastic substrate and a chemical plating layer, wherein the chemical plating layer comprises a simple substance copper particle layer and a metal plating layer; the simple substance copper particle layer is positioned between the plastic substrate and the metal plating layer; the particle diameter of simple substance copper particles is between 15 and 100 nanometers; and the bonding force between the chemical plating layer and the plastic substrate is between 100 and 400MPa. The invention also discloses a preparation methodfor the chemical plating material, which comprises that: the plastic substrate is contacted with aqueous solution of a reducing agent and cupric brine solution, so that the surface of the plastic substrate is adhered with the simple substance copper particle layer; and the metal plating layer is formed through metal deposit, and the simple substance copper particle layer and the metal plating layer form the chemical plating layer, wherein the contact condition ensures that the reducing agent reduces cupric salt into simple substance copper particles of which the diameter is between 15 and 100nanometers, and the bonding force between the chemical plating layer and the plastic substrate is between 100 and 400MPa. The method has high production efficiency and low cost; and the chemical plating layer can be firmly bonded with the substrate.
Owner:安徽新合富力科技有限公司

Large-scale complex curved surface three-dimensional shape robot movement measuring system and method

The invention belongs to the field of automatic optical measurement, and particularly discloses a large-scale complex curved surface three-dimensional shape robot movement measuring system and method.The system comprises structured light three-dimensional scanning equipment, an industrial robot, an autonomous moving platform, stereoscopic vision measuring equipment and ground positioning targets.The method using the system for measurement comprises the following steps that coordinates of the positioning targets under an overall coordination system are calibrated; a robot hand-eye relationship is calibrated; an automatic measuring route is programmed; cloud data of a plurality of position points are obtained; cloud poses of the position points are obtained; and the cloud data of the multiple position points are subjected to alignment. According to the large-scale complex curved surface three-dimensional shape robot movement measuring system and method, efficient and high-precision automatic measurement of a large-scale complex curved surface three-dimensional shape under a non-contact condition can be realized, so that original three-dimensional data is provided for machining quality estimation of a large-scale complex curved surface.
Owner:HUAZHONG UNIV OF SCI & TECH

Planarity diagnostic system, E.G., for microelectronic component test systems

Maintaining proper planarity of elements of a microelectronic component test system helps ensure reliable operation of the test system. This disclosure suggests test systems and methods for verifying planarity of, for example, a head and a support surface of a microelectronic component test system. In one exemplary method, a probe card is mounted to and electrically coupled to a head of a microelectronic component test system. The probe card has an array of probes. A contact surface of the support is moved with respect to the head and a change in contact condition of each of the probes is recorded in a first data set. The orientation of the probe card with respect to the contact surface is changed, the contact surface is moved with respect to the head again, and a change in contact condition of each of the probes is recorded in a second data set.
Owner:MICRON TECH INC

Method and apparatus for driver hands off detection for vehicles with active front steering system

A system and method for detecting the absence of contact between the hands of a driver of a vehicle and a steering wheel of the vehicle that have particular application in ensuring the proper functioning of various components of the driver assist steering systems and maintaining driver attentiveness. The method for detecting a no-contact condition between the hands of the driver of the vehicle and the steering wheel includes generating a model of the no-contact condition using a second-order transfer function. The method further includes obtaining a set of model-generated steering dynamics by estimating a plurality of parameters of the second-order transfer function and a set of measured steering dynamics using a plurality of sensors. The set of model-generated steering dynamics and the set of measured steering dynamics are then compared and the no-contact condition is detected based on this comparison.
Owner:GM GLOBAL TECH OPERATIONS LLC

Heating method for tissue contraction

Systems and methods are disclosed for therapeutically heating a target zone of a collagenous support tissue within a patient body. In exemplary embodiments, the present invention provides electronically determining an acceptable or unacceptable contact condition between an energy source and a first tissue layer disposed proximally to the target zone. Upon determining an acceptable contact condition, the target zone is irradiated or otherwise heated for a finite time period with energy. A determination of an unacceptable contact condition causes cessation of irradiating.
Owner:ENDO OPERATIONS LTD

Bidirectional final motion test fixture and bidirectional final motion test method thereof

The invention relates to a bidirectional micro motion test fixture and a bidirectional micro motion test method thereof. The fixture is mainly in the structure that: a planar test-piece fixture (2) is in an inversed V shape, the opposite surfaces of the left and right sides of the lower part are all opened with a groove (4) fit to a planar test-piece (13), and the wall of the groove (4) is provided with a puller screw (3); a spherical test-piece fixture (8) is opened with a spherical test-piece cavity (7) fit to a spherical test-piece (5), and the wall of the spherical test-piece cavity (7) is provided with a puller screw (6); and the vertical axes of the spherical test-piece cavity (7), a piston (9) and the planar test-piece fixture (2) are coincided. One side of the upper part of the planar test-piece fixture (2) is connected with an upper vertical screw (10) while the spherical test-piece fixture (8) is connected with a lower vertical screw (12), and a displacement sensor is connected with the upper vertical screw (10) and the lower vertical screw (12). The test fixture can effectively simulate bidirectional fretting under spherical / surface contact condition, test tribology properties and estimate contact fatigue life of a coating under spherical / surface bidirectional micro motion condition on the existing hydraulic servo micro motion test platform.
Owner:SOUTHWEST JIAOTONG UNIV

Involute bevel gear tooth end relief and parametric modeling method

The invention disclose s an involute bevel gear tooth end relief and parametric modeling method which includes the steps of building a three-dimensional model of a bevel gear without the relief; building a finite element model of the bevel gear without the relief; determining 4 key engaging positions in the gear engaging process according to the gear engaging period to obtain the gear circumferential displacement difference value and the tooth width-direction equivalent contact stress distribution; determining the relief amount and the relief length of the tooth end relief; building a relief curve equation and a relief tooth surface equation; realizing the primary modeling of the relief curve and the tooth surface after the relief, and building a three-dimensional model of the relief gear; analyzing the gear after the relief by finite element analysis software and comparing the gear after the relief with a gear without the relief. The tooth surface contact condition is improved, the vibration noise in the gear engagement is reduced, and the NVH quality of the gear is improved.
Owner:WUHAN UNIV OF TECH

High-accuracy method for testing thermal interface material

ActiveCN102768225AEliminate Uncertainty ErrorsMaterial heat developmentHeat fluxEngineering
The invention discloses a high-accuracy method for testing a thermal interface material. The high-accuracy method comprises step one, preparing testing devices and selecting a test point of a testing thermal flow meter; step two, loading pressure stress and heating the thermal flow meter in a forward direction; step three, collecting the temperature of the test point and calculating forward contact thermal resistance R'; step four, loading pressure stress and reversely loading heat flux and collecting temperature of the test point; step five, calculating reverse contact thermal resistance R''; step six, calculating contact thermal resistance of the thermal interface material; and step seven, measuring the thickness L of the thermal interface material and calculating equivalent heat conductivity of the thermal interface material. According to the method, a symmetrical test structure capable of achieving vertical two-way heat flux is utilized to perform measurement, so that uncertainty errors of temperature measurement caused by a plurality of temperature sensors distributed on the testing thermal flow meter and different contact conditions of the testing thermal flow meter are basically eliminated, and then the contact resistance and effective equivalent heat conductivity of the thermal interface material can be measured in high accuracy mode under the premise that the heat flux accuracy is ensured.
Owner:NANJING UNIV OF SCI & TECH

Relay controller

ActiveUS20070205771A1Diminish and eliminate system down timeAvoid damageCircuit interrupters testingRelaysContact conditionEngineering
A relay controller for connecting a power source includes at least one relay having at least two contacts. The relay controller includes a processing device operable to selectively switch the relay contacts, and a feedback circuit adapted to identify an actual state of the relay contacts. The processing device is configured to recognize a fault contact condition of a disparity between an expected state of the relay contacts and the actual state of the relay contacts. The processing device is also configured to responsively communicate information relating to the relay fault condition.
Owner:EMERSON ELECTRIC CO

Method for cleaning diamond wire cut silicon wafers

The invention discloses a method for cleaning diamond wire cut silicon wafers. The method for cleaning the diamond wire cut silicon wafers comprises the steps that the cut silicon wafers are pre-cleaned, and activated cleaning is carried out on the pre-cleaned silicon wafers through an activated cleaning agent, wherein the activated cleaning agent is a mixed reagent formed by pure water, sodium hydroxide and hydrogen peroxide. According to the method, impurities such as organic matters, bacteria, reducible metal ions remained on the surfaces of the silicon wafers can be removed effectively through the hydrogen peroxide strong in oxidizing property; by controlling the concentration of the sodium hydroxide in the activated cleaning agent, the activated cleaning agent can only react with portions, with large flaws and damage, of the surfaces of the silicon wafers, the damage portions of the surfaces of the silicon wafers are removed, the surfaces of the silicon wafers have the same contact condition with a texture surface making reagent in the subsequent texture surface making process, namely, the reaction speeds of all portions of the surfaces of the silicon wafers with the texture surface making reagent are identical, and thus the silicon wafers after texture surface making have good texture surfaces. Therefore, the method for cleaning the diamond wire cut silicon wafers can effectively improve the cleanliness of the surfaces of the silicon wafers, and the evenness of the texture surfaces of the silicon wafers after the texture surface making is good.
Owner:ZHEJIANG YUHUI SOLAR ENERGY SOURCE

Terminal contact-type IC card having terminal contact fault detector, IC card system using the IC card, and IC for the IC card

An IC card system has, at least, an IC card having a first set of terminals and an external unit having a second set of terminals. The IC card has a detector for detecting a contact condition between the first and second sets of terminals, a controller, and an internal circuit such as an EEPROM. If the detector determines that the contact condition is faulty, the controller completes a given process, and then, stops the operation of the internal circuit. If an access operation to the internal circuit is in progress when the detector finds contact fault, the controller does not stop immediately and continues to complete the access operation, to prevent the writing or reading of erroneous data. The present invention also provides an IC card for the IC card system and a semiconductor IC incorporated in the IC card.
Owner:KK TOSHIBA

Methods for detecting contact between a read-write head and the accessed disk surface in a hard disk drive

Determining a contact condition between read-write head and accessed disk surface inside hard disk drive, where micro-actuator assembly mechanically couples to slider and electrically interacts through signal path. Signal path sensed, creating sensed feedback signal, used to determine contact condition, which indicates when read-write head is, or is not, in contact with accessed disk surface. Means for implementing this process. Contact condition is product of process. The process may respond to contact condition, altering read-write head flying height. Process may be implemented as operations of embedded control system and / or servo controller. Method of predictive failure analysis using the contact condition to estimate performance parameter and create performance degradation warning. Manufacture process collecting contact condition to partly create reliability estimate of the hard disk drive, which may be form of Mean Time to Failure. Manufacturing may further include screening the hard disk drive based upon the reliability estimate.
Owner:SAMSUNG ELECTRONICS CO LTD

Method for more producing light oil by using hydrocarbon oil

The invention discloses a method for more producing light oil, comprising the following steps of: enabling hydrocarbon oil to contact with a cracking catalyst under the conditions of catalytic cracking, wherein the contacting condition makes the transformation ratio of the hydrocarbon oil be 50-73wt%; cutting and separating the catalytic cracking products according to the order of boiling points to obtain rich gas, crude gasoline fraction, light diesel fuel fraction, heavy diesel fuel fraction, refining oil fraction and slurry oil; carrying out solvent deasphalting on a part of or all of the obtained slurry oil to obtain solvent deasphalting oil with the distillation range of 250-600 DEG C; mixing the obtained solvent deasphalting oil with the obtained heavy diesel fuel fraction and refining oil fraction and then contacting with a hydro-upgrading catalyst, wherein the contact condition makes the yield of hydrogenised heavy oil be 70-99wt%; carrying out the separation reaction on the mixture to obtain gas, light oil and hydrogenised heavy oil; and enabling the obtained hydrogenised heavy oil to contact with a cracking catalyst under the condition of catalytic cracking, wherein the contact condition makes the transformation ratio of the hydrogenised heavy oil higher than 60wt%. With the method provided by the invention, the yield of the light oil is greatly improved.
Owner:CHINA PETROLEUM & CHEM CORP +1

Catalyst for combustion of soot particles in diesel vehicle exhaust, and preparation method thereof

InactiveCN102658122AMeet the low temperature requirements of the exhaust gasPromote regenerationMetal/metal-oxides/metal-hydroxide catalystsRare earthSoot particles
The invention provides a rare earth oxide and transition metal oxide-supported alkali metal catalyst for reducing the combustion temperature of soot particles in diesel vehicle exhaust, and a preparation method thereof. The preparation method is characterized in that non-noble metal salts are taken as raw materials, the sol-gel method is employed as the preparation technology, and the preparation process is easy to control. Soluble salts of rare earth Ce, transition metal Mn and alkali metal K are taken as precursors and the mass percents of Ce, Mn and K are adjusted to obtain the K / CeO2-MnO2 catalyst. In a bulk contact condition, the combustion temperature of the soot can be reduced from 575 DEG C in absent of a catalyst to 395 DEG C in present of the catalyst, thereby meeting the temperature range of the diesel vehicle exhaust. The catalyst is a catalyst which is capable of removing the soot in the diesel vehicle exhaust effectively.
Owner:EAST CHINA UNIV OF SCI & TECH
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