149results about How to "Potential stability" patented technology

The potential at a channel region of a MOSFET on a substrate needs to be stabilized to assure a drain withstand voltage. To this end, a new potential line is additionally required. However, the addition of the potential line causes a drop in the aperture ratio in a transmissive type liquid-crystal display device, in which lightness is particularly important. A light shielding layer overlapping the MOSFET formed on the substrate is electrically connected to the channel region in the MOSFET.

The invention relates to a constant temperature wiggly corrosive wear testing device and a test method thereof. A medium cavity of a high ball discharge test piece is arranged on the periphery of a lower clamp of the testing device, and the cavity is filled with test medium; the wall of the cavity is of a sandwich layer structure, the lower part of the sandwich layer is provided with a water inlet, the upper part is provided with a water outlet, the water inlet is connected with a constant temperature water bath kettle by a miniature water pump, and the water outlet is directly connected with the constant temperature water bath kettle, thereby forming a constant temperature water circulation system; an auxiliary electrode and a reference electrode are immersed in test medium of the medium cavity; and the auxiliary electrode, the reference electrode and the upper end face of an upper test piece are respectively connected with the corresponding port of a microprocessor controlled electrochemical workstation by conducting lines so as to form an electrochemical corrosion test system. The testing device and the method thereof can conveniently wear materials in the constant temperature test medium by wiggly corrosion, thereby much more factually and accurately testing the wiggly corrosive wear property of the materials in the specific corrosion medium; and the testing device and the method thereof provide much more accurate and reliable test basis for corresponding design, so that the properties and the service lives of equipment and apparatus can be increased.

A polymeric membrane for ion sensitive measurement comprising a polymer, a lipophilic salt and at least two ionophores selective for different chemical species. The membrane may be used in a pseudo reference for measurement of a plurality of ions.

The embodiment of the invention discloses a pixel circuit and a display device. The pixel circuit comprises a driving module, a storage module, a light emitting module and a leakage current suppression module; the storage module is used for storing the voltage of the control end of the driving module; the driving module is used for driving the light-emitting module to emit light according to the voltage of the control end of the driving module; and the leakage current suppression module is electrically connected with the control end of the driving module and is used for maintaining the potential of the control end of the driving module. The module electrically connected with the control end of the driving module is set as the leakage current suppression module, so that the potential of the control end of the driving module is not easy to discharge, and the potential of the control end of the driving module can be well maintained; moreover, the driving frequency of the pixel circuit can be reduced, and the power consumption of a driving chip in the display device comprising the pixel circuit is reduced. Due to the fact that the electric potential of the control end of the driving module is not prone to being discharged through the leakage current restraining module, the area of the storage module can be reduced, and pixel density can be improved.

The embodiment of the invention discloses a display panel, a driving method and a display device. The display panel comprises a substrate base plate; a plurality of sub-pixels positioned on one side of the substrate base plate; the plurality of sub-pixels being arranged in an array; each sub-pixel comprising a pixel driving circuit and a light-emitting element; a pixel driving circuit, comprisingan initialization transistor and a driving transistor, and the initialization transistor and the driving transistor each comprising a first electrode, a second electrode and a grid electrode; a firstelectrode of the initialization transistor being electrically connected with a grid electrode of the driving transistor, and the driving transistor being used for providing driving current for the light-emitting element; and at least one switch module. The second electrodes of the initialization transistors of the at least two sub-pixels are connected with the output end of the same switch module.The input end of the switch module is electrically connected with the initialization signal end. The switch module is used for transmitting an initialization signal to the second electrode of the initialization transistor. The problem that the gate voltage of a driving transistor is unstable due to electric leakage of an initialization transistor can be solved, and the display effect is improved.

A particle filter for treating exhaust gases includes an SCR catalyst that, when in the presence of a reductant such as ammonia, promotes selective catalytic reduction of NO_x; an active oxidation catalyst that promotes oxidation of hydrocarbons and carbon monoxide; and an oxygen storage catalyst that alternately stores and releases oxygen, enhances soot oxidation, and stores NOx at temperatures below optimal SCR functioning. The particle filter may be included in a system having an oxidation catalytic device (OCD) upstream of the particle filter, and optionally includes one or more SCR converters upstream and/or downstream of the particle filter, and/or an ammonia slip catalyst downstream of the particle filter. The system may further be adapted for operation under a high frequency injection fuel control with an OCD having substantial NOx storage material content, or an NSC for improving the efficiency tradeoffs between soot oxidation during filter regeneration and NO_x reduction.

An optical transceiver module is constituted so as to have an optical transmission module, an optical receiving module, a drive circuit board for driving the optical transmission module and the optical receiving module, and short-circuit means which induces an electrical short circuit between housings of the respective modules or induces an electrical short circuit between ground (GND) terminals of the respective modules on the module sides with respect to the drive circuit board. As a result, in the optical transceiver module, stray capacitance and stray inductance in lead pins, housings, and internal components of optical devices, such as an LD and a PD, are removed, thereby suppressing fluctuations in the potential (GND) of an LD housing which arise during high-frequency driving operation, as well as considerably suppressing electrical crosstalk between the transmission and receiving modules.

The invention discloses an active carbon double-electrode system-based heavy metal electrochemical sensor. The active carbon double-electrode system-based heavy metal electrochemical sensor comprises a work electrode and an auxiliary electrode. The work electrode and the auxiliary electrode are respectively connected to an electrochemical workstation by leads. The auxiliary electrode is prepared from active carbon. The active carbon double-electrode system-based heavy metal electrochemical sensor does not adopt a reference electrode adopted by the traditional three-electrode system, does not need regular maintenance, prolongs a sensor service life and reduces a maintenance cost. The invention also discloses a method for detection of heavy metals by the active carbon double-electrode system-based heavy metal electrochemical sensor. The method utilizes a square wave anodic stripping voltammetry method to determine a heavy metal concentration, has high detection sensitivity, good reappearance and high stability, realizes recycle of the electrodes only by electrocleaning, can be operated simply, has low energy consumption and can be used for on-site real-time monitoring of heavy metals.

A solid-state imaging device including: a semiconductor substrate of a first conductivity type, having a fixed electric potential; a dark-current drain region of a second conductivity type, formed on a portion of the semiconductor substrate; a connection region of the first conductivity type, formed on another portion of the semiconductor substrate where the dark-current drain region is not formed; a well region of the first conductivity type, covering the dark-current drain region and the connection region; and a first region and a second region, formed within the well region and constituting a part of a read transistor that reads signal charge generated by photoelectric conversion. The well region is maintained at a fixed electric potential by being connected to the semiconductor substrate via the connection region.

The invention discloses intelligent monitoring equipment for monitoring a fault of a video camera. The intelligent monitoring equipment comprises an operational amplifier input circuit, an enhanced calibration circuit and a clamp output circuit, wherein the operational amplifier input circuit receives a data signal output by a modulation signal module in the intelligent monitoring equipment for monitoring the fault of the video camera; the enhanced calibration circuit utilizes a triode Q2, a triode Q3, a triode Q4 and a triode Q5 to form a signal enhancement circuit for enhancing signals; an operational amplifier AR3 and a variable resistor RW1 form a frequency modulation circuit for modulating frequency of signals; an operational amplifier AR2 is designed for feeding back signals to an emitter of the triode Q2, so as to adjust output signal potential of the frequency modulation circuit; and finally, the clamp output circuit utilizes a diode D2 and a diode D3 to clamp an output signalof the enhanced calibration circuit to be in a range from 0 to +5 V, and the signal is filtered for output by means of a pi type filtering circuit composed of an inductor L3, a capacitor C4 and a capacitor C5. The intelligent monitoring equipment realizes automatic calibration of the signals, stabilizes the signal frequency and potential, and prevents signal distortion.

A sheet-forming wire with a lower fabric layer formed from a multiplicity of identically constructed lower weave repeats, each of which contains longitudinal threads extending in the lower fabric layer, and lower cross threads, with the lower cross threads extend only in the lower fabric layer. The lower cross threads are tied into the lower fabric layer in each case by exactly two longitudinal threads extending in the lower fabric layer, in that each particular lower cross thread is run under by a first longitudinal thread at a first tying-in point (x) and is run under by a second longitudinal thread at a second tying-in point (x). The lower cross threads form first lower cross threads (I) and second lower cross threads (II). The first lower cross threads form a shorter float on the running side than the second lower cross threads.

The invention provides a fabrication method of a lithium ion battery. An electrode of the lithium ion battery comprises ethylene sulfate and sodium hexafluorophosphate used as an additive, wherein theethylene sulfate accounts for 0.5-3% of the total volume of the electrolyte, and the concentration of the sodium hexafluorophosphate in the electrolyte is 0.001-0.02mol/L. A formation method comprises the steps of 1, formation under an atmosphere of high-concentration CO2; and 2, formation under an atmosphere of low-concentration or zero-concentration CO2. By the method, a stable SEI membrane isformed, the internal resistance rising is prevented, and the volume expansion rate of the battery after circulation, particularly after circulation in a high-temperature environment is reduced.

The invention discloses an OLED array substrate, a display panel and a display device, and relates to the technical field of display, and the OLED array substrate comprises a substrate, a plurality ofgrid lines and a plurality of data lines, and the grid lines and the data lines intersect to define a plurality of pixel regions; the pixel region comprises a pixel driving circuit; the pixel drivingcircuit comprises a driving transistor and at least one first node transistor electrically connected with a first node; in the direction perpendicular to the plane where the substrate is located, anoverlapped area between an active layer of the first node transistor and a grid electrode of the first node transistor is a channel of the first node transistor, at least one blocking unit is arrangedin the side, far away from the substrate, of a first metal layer, and at least part of the channel of the at least one first node transistor is covered by a blocking unit. According to the invention,at least part of the region of the channel of the at least one first node transistor is covered by the blocking unit, so that the leakage current of the first node transistor is reduced, and a screenshaking phenomenon is overcome.

The invention discloses a high-frequency isolation type inverter for preventing three-phase load unbalance. The high-frequency isolation type inverter comprises a direct current input circuit, a high-frequency inverter, a high-frequency isolation transformer with double secondary side windings, a magnetic amplifier rectifying circuit, a direct current filter, a three-phase bridge type inverter and an alternating current filter, wherein the direct current input circuit is connected with the high-frequency inverter; the inversion voltage is transformed through the high-frequency isolation transformer with double secondary side windings; the two voltage output ends subjected to voltage transformation are respectively connected with the input end of the magnetic amplifier rectifying circuit; the output end of each magnetic amplifier rectifying circuit is connected with the direct current filter; the direct current filter is connected with the three-phase bridge type inverter; the three-phase bridge type inverter is connected with the alternating current filter; capacitors of two direct current filters are connected with each other; and the joint of the two capacitors is connected with a point N of the alternating current filter.

This oscillation circuit includes a crystal oscillator and a main circuit portion connected by a signal path to the crystal oscillator and driven by the crystal oscillator. The main circuit portion is provided with a DC-cutting capacitor that galvanically separates the signal path between the input side of an inverter that is connected by the signal path to the crystal oscillator and an input terminal Xin of the signal path. A potential stabilization circuit is also provided, connecting the input terminal Xin of the signal path to the output side of the inverter through a resistance element.

The invention relates to a bioelectrochemistry auxiliary anaerobic composting device capable of improving putrescibility of dewatered sludge and a startup operation method thereof, relating to an anaerobic composting device and aiming at solving the technical problems of slow composting progress, long period and poor composting maturity in the existing anaerobic composting methods. The composting device comprises an anaerobic composting chamber, an electrochemical electrode chamber and an electricity storage or consumption device, wherein the anaerobic composting chamber is positioned in the center of a reactor, formed by a space surrounded by an internal shell and provided with a first graphite brush electrode, and the side wall of the internal shell is a proton exchange membrane; and the electrochemical electrode chamber is formed by spaces between an outer shell and the internal shell of the reactor and provided with a second graphite brush electrode, and an electrode liquid is added in the electrochemical electrode chamber; and the first graphite brush electrode and the second graphite brush electrode are connected by a copper conducting wire to form a closed circuit. The composting device disclosed by the invention can compost dewatered sludge in 35-40 days with the composting maturity 28%-30% higher than that produced according to the existing composting methods, and is used for anaerobic composting.

The invention discloses a process of mechanical copper plating and mechanical copper alloy plating and belongs to the technical field of surface plating of a steel product. The process of mechanical copper plating and mechanical copper alloy plating comprises the steps of adjusting the pH value of a plating solution by means of universal mechanical plating equipment, then adding copper powder or copper alloy powder and a sedimentation accelerating agent into the plating solution, and finally a cooper coating or a copper alloy coating is prepared on the surface of the steel product along with the rotation of a plating cylinder of the mechanical plating equipment. The sedimentation accelerating agent adopted by the process is composed of diatomite, sodium gluconate, triethanolamine, stannous salt, ammonium dihydrogen phosphate, polyethylene glycol, OP-10, inorganic acid and a defined amount of water. By adopting the process of mechanical copper plating and mechanical copper alloy plating, the copper powder or the copper alloy powder can subside on the surface of the steel product rapidly, the process is simple, the operation is convenient, and the dual-effect of corrosion prevention and decoration of the steel product can be achieved.

A directional coupler includes in a laminate block, a first main line, a first sub-line, a second sub-line, and a second main line sequentially provided in a lamination direction of layers. Further, each of the first main line, the first sub-line, the second sub-line, and the second main line is divided into at least two divided coil conductors. Furthermore, at least two divided ground conductors are provided between the first sub-line and the second sub-line.