52results about How to "Cost impact" patented technology

The invention relates to a method and a device for eliminating a residual image. The method comprises the following steps of: providing a gray level reference voltage or a common electrode voltage with the cyclical change in predetermined amplitude for a liquid crystal display through a voltage-supply circuit. The invention also relates to a device for eliminating the residual image. The device comprises a voltage-supply circuit used for supplying the gray level reference voltage or the common electrode voltage with the cyclical change in the predetermined amplitude to a thin film transistor liquid crystal display. The method and the device for eliminating the residual image can decrease or eliminate the asymmetry which occurs in a positive and negative display region relative to the common electrode voltage and is caused by the deviation between the ideal value and the actual value of the common electrode voltage, thereby decreasing or eliminating the direct-current component loaded on a pixel electrode for a long time, and reducing the degree of the residual image of the thin film transistor liquid crystal display.

The invention relates to an ultrasonic altimeter used for a small unmanned aerial vehicle and belongs to the field of near earth ranging technologies of medium-low speed small unmanned aerial vehicles. An ultrasonic ranging technology is introduced into near earth ranging of the unmanned aerial vehicle, and the designed ultrasonic altimeter is small in volume and is low in power consumption, and is suitable for being installed on the small unmanned aerial vehicle with lighter load. The ultrasonic altimeter comprises an ultrasonic probe and a signal acquisition box, wherein an output signal is time pulse used for enabling the ultrasonic wave to move back and forth between an airplane and the ground. The ultrasonic altimeter has the advantages of low cost, small size, light weight, low power consumption, high precision and high practicability.

The invention discloses a method for reducing the charge and discharge polarization of a lithium air battery with a nonaqueous electrolytic solution. According to the method, the purpose of reducing the charge and discharge polarization of the lithium air battery with the nonaqueous electrolytic solution can be achieved on the basis of neither increasing the battery cost nor reducing the energy density of the battery; the method is simple and easy to realize.

The invention discloses a low-acid phenolic resin foam, which is characterized in that the foam is prepared by foaming and curing the following components, by mass: 100 parts of expandable phenolic resin, 2-8 parts of surface active agents, 2-6 parts of fillers, 4-10 parts of foaming agents and 8-15 parts of curing agents. The potential of hydrogen (pH) value of the foam is 4-6. The invention further discloses a preparation method of the low-acid phenolic resin foam. Due to the fact that the low-acid phenolic resin foam contains alkaline powder fillers coated by low-melting-point organic compounds, the coated alkaline powder fillers are released slowly in the curing process of the low-acid phenolic resin foam to perform neutral reaction with acid, thereby greatly reducing acidity in a foam body and then reducing corrosion of the phenolic resin foam on materials contacted with the phenolic resin foam. Additionally, due to the fact that the acidity reduction process and the curing process are performed simultaneously, thereby simplifying operation steps and avoiding problems in the prior art.

The invention discloses a chip adaptive configuration method and device, and relates to the electronic equipment field; the method comprises the following steps: to connect each chip to be identified with a testing controller through a testing link; the testing controller scans each chip to be identified through the testing link so as to obtain a chip model of each chip to be identified; to determine configuration parameters of each chip to be identified and/or other chips connected with the chip to be identified according to the chip model of each chip to be identified, and to configure the configuration parameters to the corresponding chip. In a chip power-on process, device scanning is used to obtain the chip model of each chip to be identified, and the obtained chip model is used to carry out different configurations for the corresponding chip, thereby realizing best signal matching between interconnected chips.

The invention provides an MMC sub-module with fault current blocking and self-voltage-sharing capabilities. The MMC sub-module comprises a half-bridge sub-module consisting of switching tubes T1 and T2, diodes D1 and D2 and a capacitor C1, and a sub-module consisting of switching tubes T3, T4 and T5, diodes D3 to D8 and a capacitor C2, wherein the capacitor C1 and the capacitor C2 are connected inparallel through a diode; a connection part between the switching tubes T1 and T2 is connected with one wire outlet end of the MMC sub-module; and the lower end of a two-way switch formed by the diodes D5 to D8 and the switching tube T5 is connected with the other wire outlet end of the MMC sub-module. According to the MMC sub-module, only 2.5 IGBTs are needed for outputting unit level; and compared with an existing sub-module topology with a fault current blocking capacity, the MMC sub-module has the advantage of being more cost-effective. According to the invention, the difficulty of capacitor voltage balance control is simplified by the sub-module; after a fault is locked, when a forward fault current flows through, the capacitors are connected into a fault loop in series; and when a reverse fault current flows through, the sub-module connects the capacitors to the fault loop in parallel, thereby facilitating rapid recovery of a system after a fault.

The invention discloses a stabilizer and an application thereof, and SBS modified asphalt and a preparation method thereof. The stabilizer is prepared by a method comprising the following steps: carrying out an esterification reaction on a styrene-maleic anhydride copolymer and long-chain alcohol under the action of acid catalysis to obtain the stabilizer. The stabilizer disclosed by the inventioncan stably adsorb and act on polystyrene chains and asphaltene macromolecules of SBS; by utilizing the long-chain alkyl, the agglomeration of SBS and the aggregation and sedimentation of asphaltene in the heat storage process can be prevented, and the dispersion effect of light components in the asphalt on the SBS and the asphaltene can be enhanced, so that the SBS modified asphalt has long-termheat storage stability.

The invention relates to an ultra-low parasitic ESD protection device. The device comprises a P type substrate; a field oxide layer is formed on the P type substrate and is a polysilicon layer; one end of the polysilicon layer is a P+injection region, the other end of the polysilicon layer is a N+injection region, the middle part of the polysilicon layer is an intrinsic region; and a plurality of contact holes are alternately formed on the P+injection region and the N+injection region. Therefore, the ultra-low parasitic ESD protection device has the characteristics of ultra-low parasitic capacitance and ultra-low parasitic resistance, and can ensure excellent releasing capacity.

The invention discloses a medicinal preparation used for protecting the livestock and poultry from diarrhea, which comprises the following raw materials by weight ratio: 1-20 parts of Radix Astragali, 1-20 parts of bighead atractylodes rhizome, 1-20 parts of licorice, 2-40 parts of white peony root, 20-150 parts of Limonite, 20-150 parts of red halloysite, 2-20 parts of pomegranate rind, 20-100 parts of alum, 3-30 parts of radix bupleuri, 4-10 parts of cimicifuga foetida, 1-20 parts of coptis and 0-3 parts of diphenoxylate. The components of the medicinal preparation are direct and mutual synergism, and has efficacy of supplementing the center and boosting qi, lifting up Yang and depression, antidarrhea with astringent, inhibiting smooth muscle spasm of gastrointestinal tract and alleviating peristaltic of gastrointestinal tract, and is capable of rapidly recovering the functions of gastrointestinal tract, thereby, the medicinal preparation has an obvious function of weight increasing.

A hardware optimization method for a CPU comprises the following steps: (1) hardware of a system is designed, wherein the system comprises a master controller, a storage controller, an external bus interface and other modules; (2) a burst region is set, wherein the burst region and a non-burst region in an internal storage can be set simply through a burst address editor; (3) a burst mode is used, wherein the burst mode can be started when the length of data is larger than 32 bits. The hardware optimization method for the CPU has the advantages that the hardware optimization method is completely compatible with an X86 instruction set, and a burst read-write region can be configured entirely to conduct segmented optimization of data read-write; with respect to hardware deign, a peripheral circuit is not added, the number of logic gates of the CPU is rarely increased, and therefore the cost of the system is not affected; the execution time of an instruction is greatly shortened, and the number of bus visit times of the CPU is reduced; the hardware optimization method can be popularized to the CPU design of other CISC or RISC instruction sets, thereby being wide in application range.