40 results about "Effective potential" patented technology

There is disclosed a method of selectively extracting ions comprising the steps of: providing a supply of ions in a body of gas; generating a ponderomotive ion trapping potential generally along an axis; generating further potentials to provide an effective potential which prevents ions from being extracted from an extraction region; trapping ions in said effective potential; and selectively extracting ions of a predetermined m/z ratio or ion mobility from the extraction region; in which the characteristics of the effective potential which prevent ions from being extracted from the extraction region are caused, at least in part, by the generation of the ponderomotive ion trapping potential.

The invention discloses a shift register unit, a driving method, a gate driving circuit and a display device, and belongs to the technical field of display. The shift register unit includes an input circuit, an output circuit, a reset circuit, a first pull-down control circuit, a second pull-down control circuit, and a pull-down circuit. The first pull-down control circuit can control the potential of a pull-down control node to be an inactive potential under the control of a first input signal, prevent the second pull-down control circuit from controlling the potential of the pull-down node to be an effective potential under the control of a pull-down control node, prevent the pull-down circuit from affecting the charging of a pull-up node under the control of the pull-down node, and improve the charging efficiency of the pull-up node, so that when the refresh rate of the display device is high, the input circuit can also effectively charge the pull-up node. Moreover, since the firstpull-down control circuit directly controls the potential of the pull-down control node, the efficiency of controlling the pull-down node to the inactive potential is improved, and the problem that the pull-down circuit affects the potential of the pull-up node is further avoided.

Novel airbag coating compositions comprising at least two separate and distinct layers are provided. The first layer (base coat), being in contact with the airbag surface, comprises a composition of at least one coating material which may comprise up to 30% by parts of the total amount of material in the first layer of a silicone resin which provides excellent adhesion, excellent tensile strength, and overall lower cost than standard silicone airbag coating materials. The second layer, being a coating for the first layer, provides excellent reinforcement and blocking characteristics to permit effective potential long-term storage and optimum use upon the occurrence of a collision. Such a second layer (topcoat) is preferably a silicone material but may also be selected from the group consisting of homopolymer and coplymer resins based on ethylene, propylene, acrylates, methacrylates, vinyl esters, acrylic acid, methacrylic acid, polyurethanes, polyamides, and inorganic materials such as talc, silica, silicate, calcium carbonate, alumina, and the like. This two-layer system permits excellent strength and blocking properties to prevent undesired adhesion between portions of the target airbag when stored as well as to prevent seam combing at relatively low cost due to the materials and the relatively low amount required for the topcoat. An airbag fabric coated with this inventive two-layer system is also contemplated within this invention.

The invention discloses a shift register unit and a driving method thereof, a gate drive circuit and a display device, and belongs to the technical field of display. The shift register unit comprises a shift module, an initialization module and an output control module. The shift module can output a driving signal to a first control node. The initialization module can output an initialization signal to a second control node. The output control module is used for outputting the signal of the control node of which the potential is effective potential in the first control node and the second control node to an output end. Therefore, the shift register unit can normally scan and drive a display panel and can also output the initialization signal to the display panel under the control of the initialization module. The switching transistor in the pixel unit can be initialized by the initialization signal so that the switching transistor is enabled to discharge and the influence of the residual charge on the charging effect can be avoided.

The invention provides a shifting register unit. The unit comprises an input module, a pull-up module, a bootstrap module, a pull-up control module and a reset module, wherein the input module is connected with an input end and a pull-up node of the shifting register unit and is used for charging for the pull-up node when the input end receives effective signals; the pull-up module is connected with a first clock signal end, an output end and the pull-up node and is used for enabling the output end to be conductively connected with the first clock signal end when the pull-up node reaches an effective potential; two ends of the bootstrap module are connected with the pull-up node and the output end respectively; the pull-up control module is connected with the pull-up node and is used for discharging for the pull-up node when the potential of the pull-up node is higher than the effective potential; the reset module is connected with a reset end, the pull-up node, the output end and an invalid signal end and is used for enabling the pull-up node and the output end to be conductively connected with the invalid signal end when the reset end receives the effective signals. The invention further provides a driving method, grid driving circuit, and display device of the shifting register unit. The shifting register unit can prevent transistor characteristic drifting which is caused by excessive high potential of the pull-up node.

The invention provides a preparation method of a GaN based laser device. The preparation method comprises the following steps: S1: sequentially growing an n-type limiting layer, a lower waveguide layer, a quantum well active region, a composite upper waveguide layer, a p-type electron blocking layer, a p-type limiting layer, and a p-type ohmic contact layer on a GaN substrate; S2: etching the p-type ohmic contact layer, the p-type limiting layer, the p-type electron blocking layer and the composite upper waveguide layer to form a ridge structure of the laser device; S3: growing a layer of oxidation film on the manufactured ridge structure, and manufacturing a p-type ohmic electrode by using a photoetching method; S4: thinning and cleaning the GaN substrate, and manufacturing an n-type ohmic contact electrode on the GaN substrate; S5: splitting, coating a film, packaging on a tube shell, manufacturing the GaN based laser device with the composite upper waveguide layer, and finishing the preparation. The invention further provides the GaN based laser device. The effective potential barrier of the electron blocking layer is improved, and the laser power and the slope efficiency are improved.

The invention discloses a gallium nitride laser and a fabrication method thereof. The method comprises the following steps of: 1, sequentially fabricating a n-type limitation layer, a n-type waveguide layer, a quantum well active region, an electron barrier layer, an insertion layer, a p-type waveguide layer, a p-type limitation layer and a p-type contact layer on a gallium nitride substrate; 2, leading the P-type contact layer and the P-type limitation layer to form ridge shapes by wet etching or dry etching; 3, growing a layer of oxidation film on the fabricated ridge shapes, and fabricating a p-type ohmic electrode by using a photoetching method; 4, fabricating the gallium nitride substrate thinner and washing, and fabricating an n-type ohmic electrode on the gallium nitride substrate; and 5, carrying out cleavage and film coating, and finally packaging the gallium nitride substrate on a tube shell to make the gallium nitride laser. In the laser proposed by the invention, with the introduction of the insertion layer, two advantages can be brought to the structure: 1, hole injection is facilitated; and 2, effective potential barrier of an electron is increased.

The invention belongs to the field of geophysical exploration and relates to a natural potential continuous profile exploration method. The method comprises the following steps of : laying a plurality of sensors on each exploration point in an arrangement; measuring ground resistance Ri between adjacent exploration points, selecting one exploration point as the reference point; measuring the potential difference between each exploration point and the reference point repeatedly; laying an arrangement, wherein the exploration points on end portions of the two arrangement coincides with each other; measuring the ground resistance and the potential between the exploration points of the arrangement, and so forth; and subjecting the potential difference to denoising and superposition treatment to obtain an effective potential difference DeltUi'; calculating a corrected natural potential difference DeltUi according to the formula DeltUi=Ki*DeltUi', where Ki=(R1+R2+ ellipsis +Rn-1)/[(n-1)*Ri]; and subjecting the corrected natural potential difference DeltUi to leveling treatment to obtain desired natural electric field information. The invention can be used for detecting natural potential produced by oil-gas hydrocarbons to evaluate oil-gas possibility in trap.

The invention provides a gate drive circuit, and the circuit comprises a plurality of cascaded gate drive units. Each gate drive unit includes a shift register. In two adjacent gate drive units, an output end of the shift register at the former stage is connected with an input end of the shift register at the next stage. When a pull-up node of each shift register is at an effective potential, a clock signal end and the output end of the shift register are turned on. Each gate drive unit further includes a flyback control module which is connected with a flyback control terminal and the outputend of the corresponding shift register and is used for outputting a valid signal when the flyback control terminal receives the valid signal and the output end of the shift register outputs the validsignal. In the gate drive units of the continuous m stages, the output end of the flyback control module at the last stage is connected with the pull-up node of the shift register at the first stage,wherein m is an integer greater than one and less than the total number of gate drive units. The present invention also provides a drive method for the gate drive circuit and a display device. The gate drive circuit is capable of implementing flyback.

This invention relates to a furnace device for eliminating volatile organic compounds in exhaust gas. The furnace device has a hollow body (10) with a gas inlet (13) and a gas outlet (11), a positioning device (20) mounted inside the body (10) and an arc generator (30) attached to the positioning device (20). The arc generator (30) has multiple cylindrical chambers (31) for accommodating the exhaust gas and multiple central rods (32) respectively penetrating through the multiple cylindrical chambers (31). In each chamber (31), an inner periphery of the chamber (31) serves as an electrode, and the central rod (32) serves as another electrode. When an effective potential difference is applied to the electrodes, arcs are generated between the inner periphery of the chamber (31) and the central rod (32) inside the chamber (31). Thereby, volatile organic compounds in the exhaust gas are burned and decomposed effectively and completely by the generated arcs.

The invention discloses a method for predicting the typhoon wind speed by using stratosphere gravity waves. The method comprises the following steps: S100, collecting data and processing the data; S200, with a Rayleigh laser radar, detecting an area to be predicted, and acquiring Rayleigh laser radar echoes; S300, drawing a stratospheric atmospheric density vertical profile, a temperature verticalprofile, a stratospheric latitudinal wind vertical profile and a stratospheric longitudinal wind vertical profile; S400, acquiring a disturbance profile of the area to be predicted; S500, respectively calculating the horizontal wavelength, frequency, effective kinetic energy and effective potential energy of the gravity wave of the area to be predicted; and S600, predicting the typhoon wind speedof the area to be predicted. According to the method for predicting the typhoon wind speed by using the stratospheric gravitational wave, the frequency, the horizontal wavelength, the effective kinetic energy and the effective potential energy of the stratospheric gravitational wave are creatively proposed as main factors influencing the typhoon wind speed by collecting and analyzing the global over-the-year typhoon data.

The invention discloses a rail transit potential safety hazard data management system comprising a monitoring subsystem which comprises a control center which is electrically connected with a data processing module, a data encryption module, a wireless communication module and a display module; a station subsystem which comprises crowd photographing equipment and vehicle-mounted monitoring equipment; a building site subsystem which comprises shield monitoring equipment and foundation pit monitoring equipment; a cloud platform server side, wherein the control center transmits state informationto the cloud platform server side through the wireless communication module; and a mobile terminal which performs registration authentication on the cloud platform server side through the dedicated APP program of the monitoring subsystem. Effective potential safety hazard data management of all the stations and the rail transit building site under construction can be realized so that the efficiency of potential safety hazard checking and treatment and accident response processing can be enhanced and the major and severe accidents can be effectively prevented and contained.

The invention provides a shifting register unit, a driving method, a gate driving circuit and a display device. The shifting register unit comprises an anti-creeping circuit connected with a pull-up node and a control node, and a pull-down circuit is also connected with the control node. Since the anti-creeping circuit can control the potential of the control node based on the potential of the pull-up node, when the potential of the pull-up node is an effective potential, the potential of the control node can also be an effective potential. Moreover, when the potential of the pull-up node is an effective potential, the gate potential of the transistor included in the pull-down circuit is an ineffective potential, so that the gate-source voltage difference of the transistor connected with the control node can be kept at the ineffective potential, namely, the transistor connected with the control node is kept to be turned off, and the influence on the potential of the pull-up node is avoided. That is to say, the pull-down circuit can maintain the stability of the potential of the pull-up node based on the potential of the control node, and the problem that the transistor is turned onby mistake due to electric leakage is avoided.

The invention discloses an electroneurographic signal compression sensing processing method and an electroneurographic signal compression sensing processing circuit, which belongs to the technical field of electroneurographic signal processing. By means of compressing all the electroneurographic signals in the current data compression section containing the peak, the current data compression section refers to N electroneurographic signal data where the detected peak exists, and the electroneurographic signals of the current data compression section without the peak are removed, so that the data of the time period in which the peak is positioned are all output, the peak signals in the electroneurographic signals are relatively completely retained, the problem of the poor reconfiguration performance due to the uneven connection between peak and non-peak of electroneurographic signals. is effectively solved; in addition, by means of the device, subtraction and comparison operations needed to find the maximum difference between adjacent sampling points in the effective potential signal segment in the peak alignment phase in the traditional electroneurographic signal processing is avoided, therefore, the calculation amount of the circuit is less and the hardware resource consumption is lower.

The invention relates to a kind of Masang health-care sparkling wine, which is brewed from the following raw materials in parts by weight: 400-800 parts of white wine, 10-30 parts of Masang, 1-3 parts of Ophiopogon japonicus, and 4 parts of pork bones ‑9 parts, 8‑10 parts of cherries, 3‑5 parts of cashew nuts, 4‑6 parts of rice bran, 1‑2 parts of emblica, 10‑13 parts of black tea, 1‑3 parts of eggs, 1‑3 parts of air-dried pork skin. The masang wine brewed by the invention has stable medicinal properties, is safe and effective, and can fully exert its efficacy and improve the curative effect because the medicine borrows the power of the wine and the wine helps the medicine.