69results about How to "Reduce the degree of variation" patented technology

An ECU executes a program including the steps of determining that a change speed solenoid is abnormal when a target speed ratio falls within a predetermined range, an upshift is recognized and the change speed solenoid is abnormal; determining that the change speed solenoid is normal when the change speed solenoid is not abnormal; determining that a belt pinch pressure solenoid is abnormal when the target speed ratio is substantially equal to a speed ratio γmin on a maximum speed-increase side and the target speed ratio is not substantially equal to an actual speed ratio; and determining that the belt pinch pressure solenoid is normal when the target speed ratio is substantially equal to the actual speed ratio.

A conveyor belt comprising knit fabric of high practicality, and an apparatus which uses such a conveyor belt. The conveyor belt includes weft knit fabric. Suction of air from below belt(s) is used to convey sheet-like and/or small thing(s) which are object(s) to be conveyed that are placed. The strength of filament(s) of knit fabric at side end(s) is adequately maintained. Loops exhibit mutual intertwining of filament(s) Pitch Ps of loops in width direction is formed so as to be smaller than pitch Pg of loops in conveying direction. Adjacent loops are mutually flattened and filament(s) of loop(s) are entangled, mutual intertwining of filament(s) causes knit fabric to have suppressed percentage elongation and increased strength in conveying direction, fraying of filament(s) at side end(s) of belt(s) is prevented, and strength is adequately increased.

The invention discloses a high-chromium nickel-based superalloy, a diesel engine gas valve and a diesel engine gas valve manufacturing process. The high-chromium nickel-based superalloy comprises thefollowing essential elements: by mass, 35-45% of Cr, 1.0-5% of Al, 0.2-15% of Fe, 0.1-10% of Co, and the balance Ni and impurities, or Ni, impurities and any element. The diesel engine gas valve is made of the high-chromium nickel-based superalloy. The diesel engine gas valve manufacturing process adopts the electric upsetting-forging forming process; in the electric upsetting process, a high-order segmental dynamic loading mode is adopted to apply electric upsetting forming process parameters; the electric upsetting forming process parameters include the electric upsetting current; accordingto the high-order segmental dynamic loading mode, the electric upsetting process is subdivided into 10 segments or more, the corresponding electric upsetting forming process parameters are loaded to each segment of the electric upsetting process, and accordingly, the amplitude of variation of the electric upsetting forming process parameters is reduced. Through the high-chromium nickel-based superalloy, the diesel engine gas valve and the diesel engine gas valve manufacturing process, the hot forming property of the nickel-based superalloy can be improved, the crystal grain uniformity of electric upset parts is promoted, and surface waviness of the electric upset parts is improved. The hardness, high temperature resistance, corrosion resistance and creep resistance of the diesel engine gasvalve are improved.

In an acoustic design support apparatus, a speaker selection supporter selects a desired speaker as a candidate for use in a given space based on shape information representing a shape of the space. A speaker mounting angle optimizer calculates an optimal mounting direction of the selected speaker by selecting a mounting direction pattern which minimizes a degree of variation among sound pressure levels at a plurality of positions on a sound receiving surface defined in the space. An acoustic parameter calculator calculates a variety of acoustic parameters at sound receiving points within the space based on both of the shape information of the space and the optimal mounting direction of the speaker.

The invention relates to a silane-crosslinking flame-retardant polyvinyl chloride cable material and a preparation method thereof. The cable material contains the following components: 100 parts of PVC resin, 30-40 parts of a plasticizer a, 20-30 parts of a plasticizer b, 5-10 parts of a flame-retardant agent a, 5-20 parts of a flame-retardant agent b, 10-40 parts of a filler a, 20-30 parts of a filler b, 2-10 parts of a heat stabilizer, 0.5-2 parts of a lubricant, 0.1-0.3 part of an antioxidant, 0.1-2 parts of a silane cross-linking agent, 5-10 parts of a flexibilizer a, 5-10 parts of a flexibilizer b and 0.3-0.8 part of an aid, wherein the silane cross-linking agent is a mixture of silane a, silane b and silane c. The silane-crosslinking flame-retardant polyvinyl chloride cable materialis mainly applied to the domestic sites with requirements on high temperature resistance and high strength, has relatively high gel rate, relatively good mechanical strength and color stability and high strength, heat resistance and creep resistance, and lead salt does not need to be taken as a catalyst.

A submount which has a mounting surface on which three or more semiconductor lasers are arranged in a first direction, and includes a heat generator configured to increase the temperatures of the three or more semiconductor lasers, in which, where the heat generator generates heat, a first heat of the heat absorbed by a first semiconductor laser of the three or more semiconductor lasers disposed at one end along the first direction is larger than a second heat of the heat absorbed by a second semiconductor laser of the three or more semiconductor lasers disposed to be adjacent to the first semiconductor laser on the mounting surface.

The invention provides a self-adaptive operation-maintenance and parameter adjusting method based on an energy supply system. The self-adaptive operation-maintenance and parameter adjusting method comprises the steps of: S1, establishing a regression model of optimal hot water system energy consumption; S2, and carrying out optimization adjustment on each daily mean parameter value of a hot water system according to the regression model of the optimal hot water system energy consumption, wherein the daily mean parameter values include electric energy consumption, water energy consumption, water level, water temperature, ambient temperature and return water temperature. The self-adaptive operation-maintenance and parameter adjusting method can reduce the water supplementary amount, the return water temperature and water tank temperature as much as possible on the premise of satisfying use demand of users in self-adaptive adjustment, the ambient temperature is an important factor regarded as force majeure, but a controllable unit can be used for heating when the ambient temperature is high, thus the important factor, namely, the ambient temperature can be utilized reasonably. Therefore, the parameters of the hot water system can be optimized in real time, and the energy conservation purpose is achieved.

The invention relates to a liquid-insensitive ultrahigh-frequency RFID flexible tag antenna. The liquid-insensitive ultrahigh-frequency RFID flexible tag antenna comprises a folding dipole arm, a multi-loop matching structure, a radio frequency identification chip and a flexible dielectric substrate, wherein the folded dipole arm and the multi-loop matching structure are formed by mechanically engraving a copper-clad flexible dielectric substrate, and a radio frequency identification chip is placed in the center; Due to the impedance adjusting effect of the multi-loop matching structure, impedance matching between the tag antenna and the radio frequency chip in the air is good, and the impedance mismatching degree is greatly reduced when the tag antenna works on the liquid surface; in addition, adjustment of the dipole arms can significantly improve the gain of the tag antenna, so the reading distance of the tag antenna can reach 8 meters and 5.6 meters in the air and on the surface ofthe liquid respectively. The RFID tag antenna is low in cost and easy to manufacture, and the problem that a traditional RFID tag antenna cannot work on the surface of liquid is solved; and meanwhile, the flexible dielectric substrate can enable the tag antenna to be conformal with any bottle body or tank body, so the tag antenna can be conveniently matched with an identified object.

The invention discloses a method for preparing a semiconductor device, which comprises the following steps of: providing a substrate, wherein a shallow trench isolation region and a well region are formed on the substrate; forming a gate oxide layer on the well region and the shallow trench isolation region; forming a grid on the gate oxide layer; performing lightly doped ion implantation to form a lightly dope drain region on the substrate by taking the grid as a mask; forming an oxide layer on the grid and the gate oxide layer and etching the oxide layer to form a side wall oxide layer on the side wall of the grid; performing ion implantation with the grid and the side wall oxide layer as masks to form a source electrode and a drain electrode on the substrate; and performing fast thermal annealing process and raising the annealing temperature at the speed of 50-200 DEG per second till the annealing temperature reaches 900-1100 DEG C. The change degree of static current Idsat of the transistors with the same size can be reduced according to the control method of peak annealing temperature so as to improve the yield of the device.

The invention discloses a delay composition for fireworks. The delay composition for the fireworks is prepared from the following raw materials in percentage by weight: 20-80% of tungsten powder, 10-60% of barium chromate, 5-10% of potassium perchlorate and 1-5% of calcium fluoride. According to the delay composition for the fireworks, the delay compositions with different burning speeds can be obtained through compounding the tungsten powder, the barium chromate, the potassium perchlorate and the calcium fluoride in different proportions; the delay composition is easy to prepare; in addition,the calcium fluoride is added into the delay composition, and the combustible matter content is increased after the addition, so that the storage stability of the delay composition can be better ensured; and the delay precision is reduced to some extent after half-year storage, but the change degree is relatively small.

The invention belongs to the technical field of cooling machines, and particularly relates to a motor rotor heat sleeve rotating shaft cooling machine. The cooling machine comprises a compression refrigerator, a box body frame, a suction fan, an iron sheet tube, a strip-shaped sliding groove, strip-shaped grooves, a strip-shaped carrying plate, a square toothed plate, a pneumatic pushing rod, a rectangular groove, a supporting rod, support rods, a conveying belt, a strip-shaped side plate, a door plate, telescopic rods, semicircular clamping blocks, round rods and strip-shaped sliding blocks.The machine has the function of sequentially clamping and moving heat sleeve rotating shafts, the to-be-cooled heat sleeve rotating shafts can be rapidly placed in the cooling structure in a centralized mode, the cooling uniformity of the heat sleeve rotating shafts is facilitated, and the degree of stress changes, caused by non-uniform cooling, of the heat sleeve rotating shafts is reduced. A cold air cooling mode is used, high-temperature air enters an evaporation strip cover according to the principle that cold air descends and hot air rises, and an atomizing nozzle sprays mist-shaped liquid, so that the mist-shaped liquid is instantly vaporized and discharged through the suction fan as heat, and better heat dissipation and heat recycling are facilitated.

The invention provides a preparation process of freezing-resistant crystal balls. The preparation process comprises the steps of step-by-step gelling, heating, forming, sugaring concentration and the like; (1) sodium alginate, agar, carrageenan, konjac gum and locust bean gum powder as raw materials; (2) a physical means of adding coconut oil and a water-soluble emulsifier to refine water distribution is used; (3) a high and new technology for compounding gel with rigid gel and elastic gel by high-temperature instant forming and low-temperature slow forming is used; and (4) the solid content is increased by sugaring. The technical problem that ice crystals are formed due to gel freezing volume expansion in the freezing process of crystal balls to cause that a gel structure is prone to damage in the prior art is solved. The preparation process disclosed by the invention is reasonable in design, and the prepared freezing-resistant crystal balls have the advantages that the ice crystals are not prone to form after freezing, the gel structure is not prone to damage, and the mouthfeel is good.

A system for situational awareness monitoring within an environment, wherein the system includes one or more processing devices configured to receive an image stream including a plurality of captured images from each of a plurality of imaging devices, the plurality of imaging devices being configured to capture images of objects within the environment and at least some of the imaging devices being positioned within the environment to have at least partially overlapping fields of view, identify overlapping images in the different image streams, the overlapping images being images captured by imaging devices having overlapping fields of view, analyse the overlapping images to determine object locations within the environment, analyse changes in the object locations over time to determine object movements within the environment, compare the object movements to situational awareness rules and use results of the comparison to identify situational awareness events.