475results about How to "Extended temperature range" patented technology

Devices, systems and methods are provided for stimulation of tissues and structures within a body of a patient. In particular, implantable leads are provided which are comprised of a flexible circuit. Typically, the flexible circuit includes an array of conductors bonded to a thin dielectric film. Example dielectric films include polyimide, polyvinylidene fluoride (PVDF) or other biocompatible materials to name a few. Such leads are particularly suitable for stimulation of the spinal anatomy, more particularly suitable for stimulation of specific nerve anatomies, such as the dorsal root (optionally including the dorsal root ganglion).

The present invention is directed to oral, therapeutically effective extended release pharmaceutical compositions of 3-hydroxy-N-methylmorphinan, including delayed onset, extended release dosage forms and the use thereof.

Novel aluminum alloys are provided for use in an impact extrusion manufacturing process to create shaped containers and other articles of manufacture. In one embodiment blends of recycled scrap aluminum are used in conjunction with relatively pure aluminum to create novel compositions which may be formed and shaped in an environmentally friendly process. Other embodiments include methods for manufacturing a slug material comprising recycled aluminum for use in the impact extraction process.

The invention relates to a method for preparing propylene from methanol, which mainly solves problems of the prior art, such as low weight ratio of propylene/ethylene and low propylene selectivity. The invention solves the problems by using the methanol/water mixing liquid as material, contacting the material with a catalyst under conditions of 400-550 DEG C, 0.1-1Mpa, 1-5 hour<-1> of methanol weight hourly space velocity and 0.2-5:1 of water/methanol weight ratio, reacting and generating an effluent containing propylene, wherein the catalyst contains following componets by weight percent: a) 0-10% P of P2O5; b) 0-10% Mg of MgO; c) 0-10% La of La2O3; d) and the rest ZSM-5 molecular sieve, wherein the dosage of a, b, and c can not be zero at the same time. Thereby, the invention is useful in industrial production of propylene from methanol.

The present invention relates to one kind of waste rubber tyre powder modified asphalt and its preparation process. The waste rubber tyre powder modified asphalt consists of asphalt matrix 100 weight portions, waste rubber tyre powder 10-30 weight portions, compatilizer 1-10 weight portions, dissolution promoter 0.5-30 weight portions, activating modifier 1-40 weight portions and emulsifier 0-5 weight portions. It is prepared through a chemical and physical process including the steps of degrading and activating the waste rubber tyre powder, vulcanizing and cross-linking, stirring and shearing. It is suitable for paving and repairing highway.

A composite hydrogen storage material including 1) an active material having hydrogen storage capacity; and 2) a catalytic material having greater catalytic activity toward the dissociation of molecular hydrogen and/or oxidation of hydrogen than that of said active material having hydrogen storage capacity. Also, a fuel cell employing anodes formed from the composite hydrogen storage material. The fuel cell has the ability to start up instantly and can accept recaptured energy such as that of regenerative braking by operating in reverse as an electrolyzer.

Disclosed is a novel compound, namely a pentacyclic liquid crystal compound having a CF2O bonding group, which has general physical properties necessary for a compound, stability against heat and light, a wide temperature range of a liquid crystal phase, a high clearing point, good compatibility with other compounds, and large dielectric anisotropy and large refractive anisotropy. This pentacyclic liquid crystal compound has a particularly high clearing point and particularly large refractive anisotropy. Also disclosed are a liquid crystal composition and a liquid crystal display.

Systems and methods for combining a mineral acid and a polymer additive in an asphalt composition are described. Methods of preparing a polymer modified asphalt include providing a source of a neat asphalt; heating the neat asphalt; providing a source of a polymer; adding the polymer to the neat asphalt to form a blend; providing a source of a dilution asphalt; and adding the blend to the dilution asphalt to form a diluted product. The systems and methods provide advantages in that the addition of the mineral acid widens the temperature range in which satisfactory performance from a given polymer asphalt composition can be achieved or, as a corollary, reduces the amount of polymer additive that would otherwise be needed to achieve satisfactory performance within a given temperature range.

An active matrix-type liquid crystal device is constituted by a pair of substrates, a chiral smectic liquid crystal composition disposed between the pair of substrates so as to form a plurality of pixels, and a plurality of active elements provided to the pixels, respectively, for driving the liquid crystal device in a matrix driving scheme. The chiral smectic liquid crystal composition may preferably comprise at least two specific fluorine-containing mesomorphic compounds and assume two stable states between which a threshold voltage for switching from one of the two stable states to the other stable state is different from a threshold voltage for switching from the other stable state to said one of the two stable states and liquid crystal molecules of the liquid crystal composition change their alignment states so as to provide a halftone state depending on a voltage applied to the chiral smectic liquid crystal.

The invention provides for a process for dewaxing a waxy hydrocarbon feedstock to form a lubricant oil. The invention is also directed to a catalyst system comprising a hydrotreating catalyst upstream of a dewaxing catalyst, used in the dewaxing of a waxy hydrocarbon feedstock to form a lubricant oil. In particular, the invention is directed to a process and catalyst system designed to maintain yield of lubricant oil product. Specifically, the yield of lubricant oil does not decrease more than 2%, at a target pour point, over a dewaxing temperature range. The hydrotreating catalyst helps prevent aging of the dewaxing catalyst and maintains lubricant oil product yield at a target pour point over a wide temperature range. The hydrotreating catalyst comprises platinum, palladium, or combinations thereof on a low acidity inorganic oxide support where acidity is measured by a decalin conversion of less than 10% at 700° F.

A plasma display device is provided which is capable of expanding an ensured operating temperature range or operating life time even at time of changes of a driving margin induced by a panel temperature or cumulative operating time of the panel. Display is controlled in a scanning period during which writing discharge is made to occur in a cell, in a sustaining period during which a cell having undergone writing discharge is turned ON for displaying, and in an initializing period during which wall charges in a cell and space charges accumulated before the scanning period starts are initialized. A wall charge adjusting period during which a potential difference between scanning electrodes and data electrodes varies gradually is set and a change rate of a potential between scanning electrodes and data electrodes during the wall charge adjusting period is changed according to the panel temperature and/or cumulative operating time of the panel.

The invention discloses a control method of an electronic expansion valve of an indoor machine during refrigerating of a convertible frequency air conditioner. The control method comprises the following steps of: 1, judging whether a microprocessor of the indoor machine (8) is in a heating standby state; 2, regulating the openness of the corresponding indoor electronic expansion valve (7) to reach 30-50 paces by the microprocessor; and 3, keeping the openness of the indoor electronic expansion valve (7) in the step 2 for 2-6min, regulating the openness of the corresponding indoor electronic expansion valve (7) by the microprocessor according to temperatures transmitted by a liquid pipe temperature sensor (9) and an indoor heat exchanger coil temperature sensor (11) every 15-35S in accordance with the following rules: the openness of the regulated indoor electronic expansion valve (7) is equal to the sum of the openness of the indoor electronic expansion valve (7) before the regulation and the openness of the regulation of the indoor electronic expansion valve (7), and the openness of the regulation of the indoor electronic expansion valve (7) is equal to (T3-Tmin-A)*E+delta(T3-Tmin)*F. Compared with the prior art, the control method disclosed by the invention has the characteristics of being suitable for a one-more air conditioner, being capable of effectively ensuring stable operation of the system and improving heating efficiency of the system, being low in energy consumption, and ensuring that the temperature change range of an indoor environment is smaller and the comfort degree of the indoor environment is higher.

A green article comprising an A-B powder mixture and methods of manufacturing such green articles and corresponding sintered articles are disclosed. The A-B powder mixture consists of a minor volume fraction of a relatively fine powder A and a complementary major volume fraction of a relatively coarse prealloyed powder B wherein the A-B powder mean particle size ratio is at least about 1:5. Metal powder A consists of one or more elemental metals or alloys which has a melting or solidus temperature above the highest sintering temperature at which the A-B powder mixture may be sintered without slumping. Prealloyed metal powder B consists of one or more alloys which are amenable to supersolidus liquid phase sintering. Green articles made from the A-B powder have a wider sintering temperature window than do articles made from prealloyed metal powder B alone.

A system and method for forming a TSV contact is presented. A preferred embodiment includes a TSV in contact with a portion of the uppermost metal layer of a semiconductor die. The interface between the TSV conductor and the contact pad is preferably characterized by a non-planar zigzag pattern that forms a grid pattern of contacts. Alternatively, the contacts may form a plurality of metal lines that make contact with the contact pad.

A semiconductor force sensor capable of preventing a diaphragm part (37) from being broken and accurately measuring a force applied thereto in a direction orthogonal to the diaphragm part (37), wherein a force transmitting means for applying a measured force to the diaphragm part (37) of a semiconductor force sensor element (31) is formed of a sphere (33) having a rigidity, and a through hole (63) passing through an opposed wall part (55) toward the diaphragm (37) is formed in the opposed wall parts (55) at a position opposed to the center part of the diaphragm part (37) so that a part of the sphere (33) can face the outside of the opposed wall part (55) and stores a part of the remaining part of the sphere (33) to allow the sphere (33) to be moved only in a direction orthogonal to the diaphragm part (37) and rotated on the center part of the diaphragm part (37).

A cooling apparatus that cools a fuel cell has a first forced circulation cooling system that directly cools the fuel cell, a second forced circulation cooling system that is independent of the first forced circulation cooling system, and an intermediate cooling system that exchanges heat with each of the first and second forced circulation cooling systems. A container provided in the intermediate cooling system contains an electrically insulating liquid as a coolant.