38 results about "Limited component" patented technology

A mobile apparatus for configuring, testing or providing portable electronic devices for accessing an on-board system of a mobile platform provides a single convenient location for ensuring proper configuration. Portable electronic devices pre-configured for connection to the on-board system are easily tested and re-configured if needed. Further, external components, such as PC cards or disk drives may be provided for configuring the portable electronic devices for accessing the on-board system. Entire portable electronic devices having limited components also may be provided for accessing the on-board system.

The rectification circuit includes following parts: synchronous rectification MOS tubes connected to bridge type rectification circuit; being connected between grid and source electrodes of corresponding synchronous rectification MOS tubes, the voltage amplitude limited components in use for limiting amplitude of drive voltage led from AC input end in order to insure safety of operation of corresponding MOS tubes; being connected between one terminal of AC input voltage and a relevant grids of synchronous rectification MOS tubes, shaping circuit of driving voltage in use for carrying out wave shaping for drive voltage led from AC input end in order to turn MOS tubes on/off in correct time. Features are: simple structure, independent use, and long wire of load. The invention is widely applicable to high frequency, low voltage synchronous rectification circuit in switch mode for output of power supply.

A first method for fabricating low-noise optical components for use in optical metrology systems includes shaping a glass substrate to obtain a desire shape and then coating the glass substrate with a reflective coating. A second method includes shaping a glass master die to a desired shape and then using the glass master to form a glass substrate to the desire shape. A third method includes diamond turning a substrate to a desired shape and then polishing the substrate to meet two surface conditions which in turn ensures that the scattered light is minimized and the metrology instruments performance is greatly increased. These conditions relate to a measurement of encircled energy compared to an ideal diffraction limited component of the same focal length and diameter.

The invention discloses a DC bias oversampling digital-to-analog converter. A method and a device for an oversampling digital-to-analog converter with improved DC bias are provided. The DC bias oversampling digital-to-analog converter comprises a digital-to-analog converter; and the digital-to-analog converter comprises an oversampling quantizer, such as a single-bit or multi-bit Delta-Sigma regulator, a successive approximation quantizer, a dynamic quantizer, or a quantized or other proper oversampling quantized pipeline system device. Through limited components, a method for broadband attenuation for digital output of the digital-to-analog converter is provided.

A predistorter gives an input signal inputted to a power amplifier distortion corresponding to a compensation coefficient. A band limiter limits components in a second frequency band other than a first frequency band of a feedback signal fed back from the power amplifier, and distorts components in the first frequency band according to the limited components in the second frequency band. A learner updates the compensation coefficient on the basis of the distorted feedback signal.

An architecture for a fusion power plant is disclosed. The plant includes a fusion chamber for producing neutrons from a fusion reaction, and a laser system in which lasers are arranged about a vacuum chamber to provide energy to the fusion chamber to initiate the fusion reaction. The beam paths between the lasers and the fusion chamber are configured to prevent neutrons from the fusion chamber from reaching the laser system at a level that would preclude human access to the laser system.

The invention discloses a feed additive for livestock and poultry and a preparation method of the feed additive, and belongs to the technical field of livestock breeding. The feed additive comprises the following components in parts by weight: 5-20 parts of eucommia ulmoides bark powder, 5-30 parts of hogskin powder, 8-20 parts of mulberry leaves, 1-5 parts of garlic, 1-5 parts of edible baking soda, 0.1-2 parts of salt and 2-8 parts of sesamum indicum. The preparation method comprises the step of uniformly mixing raw materials. According to the feed additive and the preparation method, which are disclosed by the invention, through reasonable concerted application of the limited components, the feed additive are matched with a basal feed to be used for raising the livestock, so that the immunocompetence of the livestock is improved, the efficacies of preventing and treating diseases are realized, common diseases of the livestock can be effectively prevented, toxin, side effects and untoward effects do not exist, bad influence on the palatability of the feed does not exist, and the survival rate and the growth speed of the livestock and poultry are greatly increased when the feed additive for the livestock and the poultry is eaten by the livestock and poultry; the feed additive for the livestock and the poultry is simple in preparation, the quality and the taste of the meat of the livestock and the poultry are improved, so that animal products are safe and good in taste, and the old concept that products of the livestock and the poultry which are raised by feeds are poor in taste is changed.

A position-limiting device includes a position-limiting element and a body. The position-limiting element has a position-limiting portion and a blocking portion. The body has a corresponding blocking portion and a fitting portion. The blocking portion of the position-limiting element and the corresponding blocking portion of the body block each other such that the position-limiting element and the body are fitted together. The fitting portion is fitted to an object. The position-limiting element penetrates a position-limited component before being rotated to block or position-limit the position-limited component. Therefore, the body is fitted to the object, and the position-limiting element is rotated to position-limit or move away from the position-limited component, so as to couple together and separate the object and the position-limited component, thereby allowing two objects to be coupled together and separated repeatedly and rapidly.

The invention relates to a line-out fixed structure of a heat dissipation fan. Each of both sides of a casing body forms a first end surface and a second end surface. The casing body between the first end surface and the second end surface is formed from the circumambience of the side wall, and at least one end surface of the casing body is provided with a penetrating wave. The side wall of the casing body is provided with at least a limited component; one end of the limited component is fixed to the side wall, and the other end forms a free end which is not connected with the side wall. A lead-in mouth is formed between the terminal of the free end and the side wall. The casing body of the heat dissipation fan can effectively endure the outside force of dragging a lead to prevent the lead from falling off from a connecting point position because of the drag of the outside force, and can reduce the manufacturing cost of the heat dissipation fan.

The invention discloses a novel hand-held chemical fertilizer spreading device, which comprises a supporting frame, wherein a storage groove is formed in the upper end of the supporting frame; a handrail is arranged at the rear end of the supporting frame; a first rotating rod is connected to the lower end of the supporting frame in a rotary manner; rotary wheels are fixedly connected to both endsof the first rotating rod; a plurality of supporting columns are arranged at the lower end of the supporting frame; and the other end of each the supporting columns is fixedly connected to the upperend surface of a supporting plate, so that when chemical fertilizers are spread, the chemical fertilizers can be spread into soil layers. By additional arrangement of a soil leveling device, after thechemical fertilizers are spread, the soil layers can be turned over by the arrangement of the soil leveling device, and thus the chemical fertilizers are covered under the soil layers, so that volatilization of the chemical fertilizers can be effectively avoided, and the utilization rate of the chemical fertilizers is improved; and meanwhile, limited components are additionally arranged, and thusthe spreading regularity of the chemical fertilizers can be ensured, and the uniformity of the spreading amount of the chemical fertilizers can be ensured, so that the effect of avoiding waste can beachieved.

The invention discloses an aluminum foil used for a lithium ion battery, a microporous aluminum foil and a preparation method thereof. The aluminum foil comprises 0.16-0.18wt% of Mg, less than or equal to 0.08wt% of Si, less than or equal to 0.2wt% of Fe, less than or equal to 0.03wt% of Ga, less than or equal to 0.04wt% of Cu, less than or equal to 0.04wt% of Zn, less than or equal to 0.05wt% ofV, less than or equal to 0.03wt% of Ti, and 99.7wt% of aluminum; the microporous aluminum foil is prepared by adopting a chemical corrosion method; 300-6,000 through holes and/or blind holes with thediameters of 6-12[mu]m are distributed in each square centimeter of the microporous aluminum foil; compared with limited component composition and the existing series aluminum alloy, the aluminum foildisclosed in the invention has higher yield strength; in the subsequent chemical corrosion process, the formed micropore hole diameters are smaller and more uniform; and the through holes and the blind holes and the material body are in circular arc transition, so that stress concentration can be lowered, mechanical property can be reinforced, and electrical performance is not weakened. The aluminum foil can be used for the lithium battery.

The invention provides steel for a nuclear reactor pressure vessel. The steel comprises, by mass, 0.12-0.20% of C, 0.05-0.15% of Si, 0.25-0.40% of Mn, 0-0.006% of P, 0-0.004% of S, 3.0-3.9% of Ni, 1.5-2.9% of Cr, 0.45-0.70% of Mo, 0.01-0.02% of Al, and the balance Fe. According to the steel for the nuclear reactor pressure vessel, on the basis of the limited components, the hardenability is improved remarkably, coordination and cooperation between all the components are guaranteed, and the effect that the function of each component is brought into full play when each component exists alone is guaranteed; and the size, distribution state, shape and content of precipitated carbide in the phase change process are affected by coordination and cooperation of all the components, and accordingly the structure performance is affected.

The invention discloses a method for simultaneously detecting the content of five limited components in food additives. The method includes the steps that to-be-detected food additive samples are weighed, an absolute ethyl alcohol solution and an internal standard solution are added, and the mixture is oscillated to be subjected to ultrasonic extraction; supernatant liquid is taken, anhydrous sodium sulfate is added, supernatant liquid is taken to be filtered through an organic membrane, analysis is carried out with the gas chromatography-mass spectrometry method to obtain the quantitative ion peak areas of the five components in the supernatant liquid, and a five-grade mixing standard series work solution is prepared; analysis is carried out through the gas chromatography-mass spectrometry method, the quantitative ion peak areas serve as vertical coordinates, the content of unit areas serve as transverse coordinates, working curves pass through an original point in a forced mode, and the standard curves of the five components are obtained; according to the standard curves, the obtained quantitative ion peak areas of the five components in the supernatant liquid are substituted into the standard curves for calculation, and the content of the five components in the supernatant liquid is obtained. The method is simple, convenient and accurate, the content of the five components in the food additives can be simultaneously detected, and the universality and the extendibility of the detecting and analyzing method in the field are improved.

The invention discloses aluminum foil and micro-pore aluminum foil for a lithium-ion battery and a preparation method of the micro-pore aluminum foil. The aluminum foil comprises the following components in percentages by weight: 0.08-0.1wt% of Mg, not more than 0.08wt% of Si, not more than 0.2wt% of Fe, not more than 0.03wt% of Ga, not more than 0.04wt% of Cu, not more than 0.04wt% of Zn, not more than 0.05wt% of V, not more than 0.03wt% of Ti and 99.7wt% of aluminum. The micro-pore aluminum foil is prepared by adopting a chemical corrosion method; and 300-6,000 through holes and/or blind holes of which the diameters are 6-12 microns are distributed in each square centimeter of micro-pore aluminum foil. Compared with existing series of aluminum alloys, limited components have higher yieldstrength and the apertures of formed micro-pores are smaller and more uniform in the subsequent chemical corrosion process; the through holes, the blind holes and a material body are in arc transition, so that stress concentration is reduced, the mechanical property is strengthened and the electric property is not reduced; and the aluminum foil can be applied to the lithium battery.

The present invention pertains to a programmable logic controller (100) that is formed of a control unit (3) and a power supply unit (2) to which a lifespan-limited component is mounted, wherein the power supply unit (2) is provided with a residual lifespan storage unit (21) which retains residual lifespan information representing the residual lifespan of the power supply unit (2), and the controlunit (3) is provided with: a load current calculation unit (31) for calculating a load current of the programmable logic controller (100); an estimated temperature calculation unit (32) whereby the programmable logic controller (100) calculates an estimated value of the temperature of the lifespan-limited component in operation on the basis of the load current and ambient temperature informationacquired from a user; and a residual lifespan calculation unit (33) which updates the residual lifespan information on the basis of the estimated value and the operating time of the programmable logiccontroller (100).

The invention provides an automatic reversing multistage reciprocating type hydraulic cylinder applied to an agricultural machine. The automatic reversing multistage reciprocating type hydraulic cylinder comprises an air inlet pipeline, an air discharging pipeline, a cylinder block, a reciprocating device and a piston rod, wherein the air inlet pipeline is matched with the air discharging pipelineand provides air for the reciprocating device; the reciprocating device is arranged in the cylinder block, takes air as a power source and pulls the piston rod to reciprocate along the axial direction of the piston rod; the reciprocating device comprises a reciprocating mechanism and a piston; the reciprocating mechanism comprises a reciprocating triggering component and a limited component; thelimited component is used for limiting the movement of the reciprocating triggering component; the reciprocating triggering component is used for receiving abutting force generated when the piston moves along the axial direction of a cylinder barrel, and completes state switching under the action of the abutting force; the reciprocating triggering component comprises a triggering column which is formed by two sections of cylinders which are coaxial, have different diameters and are respectively a sliding section and a circulating section.