47results about How to "Small drift" patented technology

An ultrasonic measuring unit and a method for detecting ultrasonic signal run-times, in which the ultrasonic measuring unit has two ultrasonic transducers for coupling ultrasonic signals into a flowing medium. Analysis electronics are provided to be accommodated on or in a flow tube, in which a gaseous medium such as circulating air flows. A probe unit is accommodated in the flow tube, the probe unit being assigned a temperature probe having a flow around it, whose measured value is used for correcting a temperature signal detected by ultrasound.

There is provided an element mapping unit, scanning transmission electron microscope, and element mapping method that enable to acquire an element mapping image very easily. On the scanning transmission electron microscope, the electron beam transmitted through an object to be analyzed enters into the element mapping unit. The electron beam is analyzed of its energy into spectrum by an electron spectrometer and an electron energy loss spectrum is acquired. Because the acceleration voltage data for each element and window data for 2-window method, 3-window method or contrast tuning method are already stored in a database and accordingly the spectrum measurement is carried out immediately even when an element to be analyzed is changed to another, the operator can confirm a two-dimensional element distribution map immediately. Besides, because every electron beam that enters into an energy filter passes through the object point, aberration strain in the electron spectrometer can be minimized and higher energy stability can be achieved. As a result, drift of the electron energy loss spectrum acquired by analyzing the electron beam into spectrum can be minimized and element distribution with higher accuracy can be acquired.

The invention provides an OLED display device array substrate preparation method. Doping of different function regions such as a channel region, a source region, a drain region, an LDD region and a capacitor lower pole plate is realized through two masks and three ion doping steps, the preparation requires fewer steps, and the process is simple. The three doping steps are implemented under the condition of spacing by a gate insulation layer, the same accelerating voltage can be applied, the process cost is saved, and the stability of the process and the yield of devices are improved. The accelerating voltage is the same, and a rapid thermal treatment process is not needed after the completion of the doping process, thus simplifying the process steps. A whole semiconductor layer is doped before the semiconductor layer is patterned, and after a TFT is formed, the carrier mobility of the TFT channel region is increased, a small drift value is given to the threshold voltage (Vth), the space heterogeneity and instability of the TFT are compensated successfully, and the brightness (gray) of pixels can be accurately controlled by controlling the magnitude of current of each pixel unit.

The invention relates to a skin care product containing a biological buffering agent. The product includes microbial fermentation product extracts, and is characterized by further including the biological buffering agent with a mass percentage of 0.1-3.0%. The skin care product has the advantages that: the pH value of the product drifts in a small amplitude, the pH value stabilizes at 6.0-8.0 in three years after preparation of the skin care product, good protection is applied on the microbial fermentation product extracts added in the product, the microbial fermentation product extracts are not easy to be hydrolyzed, and anti-aging effects of the product lasts a long time.

The invention relates to a compound granule or microgranule of trichlorphon and phoxim and a preparation method thereof. The granule or the microgranule comprises the following components in percentage by weight: 1-10 percent of trichlorphon, 1-8 percent of phoxim, 1-8 percent of white carbon black, 1-5 percent of calcium chloride or ammonium sulfate, 2-5 percent of starch or paraffin and 68-86 percent of china clay or kaolin or kieselguhr or coal gangue or slag. For some crops, particularly for the planting of tobaccos, the granule or the microgranule has good settleability, small drift, light environmental pollution, short residual period, convenient application and time and labor saving. The new preparation form has strong complementarity, greatly improves the stability of solid preparations and avoids adverse factors that the trichlorphon is easy to absorb moisture, acidize and decompose, and the phoxim is easy to decompose under light during spraying. The invention has the advantages of cost reduction, toxicity reduction, convenient application and enlargement of prevent and cure spectrum.

The invention relates to the field of pesticides, particularly relates to a compound formula of a pesticide and a preparation method thereof, and discloses a compound formula of trichlorphon and diazinon and a preparation method of granules and fine granules. The granules and fine granules are characterized by being prepared from the following components in parts by weight: 1-10 parts of trichlorphon the content of active compound of which is more than or equal to 90 percent, 1-10 parts of diazinon the content of an active compound of which is more than or equal to 90 percent, 1-10 parts of a stabilizing agent, 1-3 parts of an adhering agent, and 67-96 parts of a carrier. The compound has the advantages of enlarging a pesticide control spectrum as all agents can be made good for deficiency and complement, increasing the insecticidal efficacy, and having no remarkable increase in compounding toxicity.

The invention provides a semiconductor device manufacturing method. The technology of directly injecting high-concentration impurity ions to a semiconductor layer is adopted, injection of the high-concentration impurity ions through a capacitor dielectric layer can be avoided, and influences on the capacitor dielectric layer are thus reduced. On the premise of not increasing the technological steps, the problems that voltage-resisting performance of the capacitor is reduces as the capacitor dielectric layer is damaged can be effectively solved, the yield of the semiconductor devices is improved, and the production cost is greatly reduced. According to the semiconductor device provided by the invention, the capacitor has excellent voltage-resisting performance, threshold voltage of a thin film transistor has a small shift value, the manufacturing method is simple, and large-scale industrial production can be realized.

The invention discloses a coated seed and a preparation method thereof and belongs to the technical field of agriculture. A seed coating of the coated seed is prepared from composite microorganism drypowder, peat powder and a composite fertilizer through compounding; the seed coating is capable of promoting early-stage growth of seeds; the seed coating comprises the following components in percentage by mass: 10-15% of the composite microorganism dry powder, 70-80% of the peat powder and 5-20% of the composite fertilizer; the mass ratio of the seed to the seed coating is (1:12)-(1:8); and theraw materials are sufficiently stirred and mixed and are processed by using a low-temperature pelletizing method to form a granular preparation which is convenient for seed sowing. The raw materialsof the seed coating are cheap and easy to obtain, the seed coating is simple to prepare, and the coated seed is wide in application range and diverse in function.

The invention belongs to the technical field of pesticide formulations and relates to prothioconazole containing pesticide-fertilizer granules and an application. The prothioconazole containing pesticide-fertilizer granules are prepared from prothioconazole, a fertilizer and auxiliaries. According to the prothioconazole containing pesticide-fertilizer granules and the application, provided by the invention, the prothioconazole containing pesticide-fertilizer granules have obvious sterilizing and fertilizing actions, pesticide damage is not easy to cause, and the remaining and overproofing of pesticides can be effectively avoided.

The invention discloses a thiamethoxam and monosultap containing insecticide composition and a preparation method and application thereof.The composition comprises effective components including thiamethoxam and monosultap in a mass ratio of 1-40:1-40.The insecticide composition is simple in preparation and can be made into effervescent tablets for prevention and control of injurious insects in paddy fields, and control effects of the insecticide composition are evidently higher than those of the thiamethoxam or the monosultap.In addition, the effervescent tablets effectively avoid micropowder flying in scattering to weaken toxicity of the high-toxicity insecticide and can be directly spread with hands, an operator is protected from inhaling micropowder in an insecticide applying process, and accordingly toxication accidents are avoided; the effervescent tablets generate a great quantity of bubbles in water and can be quickly disintegrated under a driving force of gas generated in the tablets, so that the effective components can be distributed more uniformly and diffused more quickly in a large range to give full play to efficacies of the insecticide; the effervescent tablets can be directly thrown into the paddy fields, and accordingly labor saving and time saving are realized, and harms to pollinating insects such as bees and natural enemies are reduced.Therefore, the thiamethoxam and monosultap containing insecticide composition has a promising application prospect.

The invention relates to a compound granule or microgranule of trichlorphon and chlorpyrifos and a preparation method thereof. The granule or the microgranule adopts a formula that both trichlorphon and chlorpyrifos are more than 95 percent of active compounds, and the granule or the microgranule comprises the following components in percent by weight: 1-13 percent of microgranule, 1-10 percent of trichlorphon, 1-8 percent of white carbon black, 1-8 percent calcium chloride or ammonia sulfate, 1-3 percent of starch or paraffin and 65-86 percent of china clay or kaolin or kieselguhr or coal gangue or slag. The invention has the obvious advantages of good settleability, small drift, light environmental pollution, long residual period, convenient application, time and labor saving, strong complementarity, great improvement of solid preparation stability, reduction of toxicity, convenience and enlargement of prevent and cure spectrum in an application process.

The invention provides a thiamethoxam and dimehypo-containing insecticidal effervescent tablet applied to a paddy field. The effervescent tablet is characterized by comprising effective components andauxiliary materials, and the effective components are thiamethoxam and dimehypo in a mass ratio of (1-60): (1-60). Thiamethoxam and dimehypo are compounded, the advantages of thiamethoxam and dimehypo are effectively played, the obtained product is excellent in quality and good in pesticide effect and can be used for preventing and controlling pests in paddy fields, and the prevention effect is obviously higher than that of single thiamethoxam or single dimehypo. The insecticidal composition disclosed by the invention can obviously save the economic cost, reduce the residual quantity of the insecticide in agricultural products and the environment, delay the generation of insecticide resistance of pests and prolong the service life of the insecticide, and has important economic significance, environmental protection significance and ecological significance.

The invention provides an acetamiprid and monosultap-containing insecticidal effervescent tablet applied to paddy fields by broadcasting. The effervescent tablet comprises effective components and auxiliary materials, and the effective components are acetamiprid and monosultap in a mass ratio of (1-60): (1-60). The acetamiprid and the monosultap are compounded, the advantages of the acetamiprid and the monosultap are effectively played, the obtained product is excellent in quality and good in pesticide effect and can be used for preventing and controlling pests in paddy fields, and the prevention effect is obviously higher than that of single use of the acetamiprid or the monosultap. The insecticidal composition disclosed by the invention can obviously save the economic cost, reduce the residual quantity of the insecticide in agricultural products and the environment, delay the generation of insecticide resistance of pests and prolong the service life of the insecticide, and has important economic significance, environmental protection significance and ecological significance.

An organic light emitting diode (OLED) display panel and a driving method thereof are provided. The OLED display panel includes a plurality of pixel unit circuits and an external compensation unit connected to all of the pixel unit circuits. The external compensation unit performs external compensation on each of the pixel unit circuits, obtains an initial threshold voltage of a corresponding driving thin film transistor (TFT) of each of the pixel unit circuits, adds the initial threshold voltage to a predetermined initial potential, and then inputs a sum of the initial threshold voltage and the predetermined initial potential to each of the pixel unit circuits Each of the pixel unit circuits performs internal compensation based on the sum of the initial threshold voltage and the predetermined initial potential. That is, the external compensation and the internal compensation are combined. The external compensation can compensate for a non-uniformity of the corresponding initial threshold voltage of each driving TFT caused by a process, and a permanent drift of a corresponding actual threshold voltage of each driving TFT due to external stress. The internal compensation can instantly compensate for a relatively smaller drift of the actual threshold voltage occurred when the OLED display panel is lightened.

Method and electronic circuit for determining a scaling factor k for a driving force function of a model of an electrodynamic acoustic transducer having at least two voice coils. Input signal fed into the transducer and it's model cause electromotive forces. A shift for the driving force function is determined on the base of the ratios between the real electromotive forces and the modeled electromotive forces. Finally, the scaling factor k is determined on the basis of a deviation between the real electromotive forces and the modeled electromotive forces at time points where the real electromotive forces and the modeled electromotive forces each are equal. The invention moreover relates to an electronic circuit for performing the above steps, and to a transducer system with the electronic circuit and a connected transducer.

The invention discloses an acetochlor and prometryn containing weeding composition and a preparation method and application thereof.The composition comprises effective components including acetochlor and prometryn in a mass ratio of 1-50:1-50.The weeding composition can be used for prevention and control of weeds in transplanted rice fields, and control effects of the weeding composition are evidently higher than those of the acetochlor or the prometryn.The weeding composition can be made into effervescent tablets, and accordingly labor intensity in application is greatly relieved, and time saving and labor saving are realized; in addition, the weeding composition can be spread more uniformly to achieve excellent weeding effects, and drifting of the weeding composition is avoided, so that safety of surrounding sensitive crops is guaranteed.