222results about How to "Conducive to stable operation" patented technology

Disclosed is an apparatus and method for operating a microwave amplifier with improved efficiency and reduced harmonic emissions. The disclosed amplifier includes a variable rail voltage supply and a variable input drive stage. A controller continually monitors the amplifier output and adjusts the rail voltage and input drive signal to achieve high efficiency and low harmonic emissions. The amplifier may include a dynamic bias controller configured to operate the gain elements outside the linear region. Efficiencies of over 70% may be achieved by the disclosed amplifier.

The invention discloses an environmental-protective composite inhibiting antisludging agent, which comprises the following parts: inhibiting component, antisludging component and deionized water, wherein the inhibiting component is composed of one or more materials in the molybdate, tungstate, borate, organic substituted carboxylic acid or organic heterocyclic compound; the inhibiting component contains one or more materials in the natural macromolecular compound, epoxy succinic acid or acroleic acid ternary copolymer.

An organic electro luminescence device is provided. In the organic electro luminescence device, first and second electrodes are arranged to face each other and to be spaced apart from each other by a predetermined interval, and includes sub-pixels for reproducing an image. An array element is formed in the first substrate per sub-pixel, and includes at least one TFT. An organic electro luminescent diode is formed in the second substrate per sub-pixel. A spacer covered with a metal portion for electrically connecting the first and second substrates. A drain electrode of the TFT and a first electrode (anode) of the organic electro luminescent diode are electrically connected by the spacer covered with the metal portion.

For an error rate QBER, threshold values are preset, including a threshold value Q_bit for frame synchronization processing, a threshold value Q_phase for phase correction processing, and a threshold value Q_Eve for eavesdropping detection. Upon the distribution of a quantum key from a sender to a receiver, when the measurement value of QBER is deteriorated more than Q_bit, frame synchronization processing is performed. When the measurement value of QBER is deteriorated more than Q_phase, phase correction processing and frame synchronization processing are performed. When QBER does not become better than Q_Eve even after these recovery-processing steps are repeated N times, it is determined that there is a possibility of eavesdropping, and the processing is stopped.

A hybrid drive of a motor vehicle having an automated manual transmission with two coaxial input shafts and a common output shaft. The input shafts are respectively driven by an engine and an electric machine and can couple the output shaft via respective groups of gearwheel sets. Each gearwheel set comprises a gear fixed to the associated input shaft and an idler gear supported by respective countershafts. At least two idler gears disposed on one of the two countershafts of two gearwheel sets, within the transmission, assigned to two different input shafts, can be coupled via a winding-path shift element, and the two output constants are disposed in a common radial plane by using a common output gear disposed on the output shaft.

The invention belongs to the technical field of a limestone/gypsum wet flue gas desulfurization technology, and particularly relates to an additive for strengthening a wet flue gas desulfurization technology, which comprises the following components in percentage by mass: 35-45% of mixed organic acid, 5-10% of organic acid salt, 6-9% of surfactant, 1-6% of heavy metal salt and 35-45% of dirt dispersion agent; and the mixed organic acid comprises adipic acid, wherein the percentage of mass of the adipic acid in the mixed organic acid is not less than 50%. The additive can be added and used for strengthening the wet flue gas desulfurization technology, improve the desulfurization efficiency of a system, reduce the energy consumption, strengthen oxidization, improve the limestone quality and restrain system scaling, and accordingly, the purposes of energy conservation, consumption reduction and waste recycling are realized.

A method of controlling an AC machine that includes a stator and a rotor. The method includes observing a stability parameter that is indicative of the stability of the AC machine and dependent on a current state of the AC machine; and controlling the AC machine based on the observed stability parameter so as to promote stable operation of the AC machine. The method may include controlling the AC machine to operate as a motor or as a generator. The AC machine may be a permanent magnet synchronous machine. A controller suitable for performing the method is also disclosed.

An apparatus for cooling a substantially closed space with recirculation air having at least one cooling unit which includes a heat exchanger with a primary set of ducts and a secondary set of ducts, each set of ducts having an in- and outlet. The unit includes a controller to control an operation of the unit, and a sensor to provide a sensor signal representative of a parameter of the unit. The controller is arranged to derive a control signal from the sensor signal, whereby the unit includes a control signal output for outputting the control signal to another unit and a control signal input for receiving a control signal from another unit, the controller being arranged to control the operation of the unit in response to the control signal and the control signal from another unit as received at the control signal input.

The invention provides a process method for preparing isobutylene by dehydrogenizing iso-butane. Particularly, solid Cr2O3-CaO-K2O-Al2O3 used as a catalyst is prepared by solid-state ion-exchange; after dehydrogenation reaction is performed for 5 to 30 minutes under the conditions of reaction temperature of 530 to 590 DEG C, reaction pressure of 0.1 to 0.5MPa, reaction quality space velocity of 1.0 to 1.5h<-1>, feeding of a reaction raw material (iso-butane) is stopped under the same reaction conditions, hydrogen is filled into a reactor according to hydrogen volume space velocity of 10 to 1,000h<-1> and the catalyst is subjected to hydrogen reduction regeneration; a ratio of hydrogen reduction regeneration time to reaction time is controlled according to a ratio of (1 to 3):1; and after hydrogen reduction regeneration is finished, feeding of the hydrogen is stopped, feeding of the hydrogen is switched into feeding of the raw material (iso-butane) and the operation is cycled and repeated. With adoption of the process method disclosed by the invention, online continuous reduction regeneration on the iso-butane dehydrogenization catalyst can be carried out, service life of the catalyst can be greatly prolonged, process flow is simplified, and energy consumption and material consumption of the reaction process are reduced.

The invention provides a thread scheduling method and a thread scheduling apparatus. A task request submitted by a user is determined through a mapping relation between a UI thread stored in a buffer pool and a task that can be processed by the UI thread, the task request is decided to be assigned to the UI thread or a background thread, the business logic of the determination and scheduling of the task request is executed by the background thread without the need of the UI thread, therefore, the processing efficiency of the UI thread is improved, the occurrence of congestion to the UI thread and a system glitch are avoided, a display effect of a UI is improved, and the stable operation of the system is facilitated.

The invention provides a device for removing fluorine ions in groundwater, which comprises water inlet devices (1), a reaction device (2), ultra-filtration devices (3) and aeration devices (4), wherein the water inlet devices (1) are arranged on the reaction device (2) and are provided with material feed devices; the ultra-filtration devices (3) are arranged in the reaction device (2); the aeration devices (4) are arranged at the bottom of the reaction device (2) and aerate by aeration holes (16) on the aeration devices (4); the ultra-filtration devices (3) are provided with outlet pipes (5); and first water pumps (6) are arranged on the outlet pipes (5). The invention further provides a method for removing fluorine by the device for removing fluorine ions. The device for removing fluorine ions in groundwater has the characteristics of simple structure, convenient use, low cost, good fluorine removing effect, and high effluent quality.

A film capacitor comprises a case in which a film cell is incorporated and a heat radiating plate including a heat absorption unit being positioned adjacent to the film cell while not being in contact with the film cell for absorbing heat and a heat radiating unit being exposed to the outside of the case. The film capacitor can perform a stable operation and has durable lifespan, even when an inverter adopting the film capacitor is mounted on a trunk room and an engine room, by effectively cooling heat generated from a film cell of the film capacitor.

A fuel cell system according to the present invention is characterized by comprising a measurement unit which measures an impedance of a fuel cell in a predetermined frequency region, and a regulation unit which regulates an amount of a gas to be supplied to the fuel cell based on a measured value of the impedance in the predetermined frequency region. According to such a constitution, the impedance of the fuel cell in the predetermined frequency region (e.g., a low frequency region) is measured, and the amount of the gas (e.g., an amount of an oxidizing gas) to be supplied to the fuel cell is regulated based on this measured value of the impedance. Here, since the impedance of the fuel cell in the predetermined frequency region largely differs with a fuel supply state (see FIG. 2), the amount of the gas to be supplied to the fuel cell can be regulated based on the measured value of the impedance to realize a highly efficient and stable operation.

The invention provides a password resetting method and a password verifying method and device. The password verifying device is used for a website backstage server, wherein the server comprises a first verification module for carrying out password verification corresponding to a first password verification mode and a second verification module for carrying out password verification corresponding to a second password verification mode. The password verifying device comprises a judging module for judging the password verification mode corresponding to a password verification request when receiving the password verification request carrying a user name and password information and generated in the user login process to obtain a judgment result; and a first processing module used for, when the judgment result shows that the corresponding password verification mode is the first password verification mode, obtaining password information, and generating a first target password abstract corresponding to the first password verification mode and a second target password abstract corresponding to the second password verification mode. When the user logs in with a correct password of the old scheme for one time, update of the password of the new scheme is achieved, thereby reducing user operation and reducing network burden.

The invention relates to an intelligent solar street lamp with automatic protection and cleaning functions. The street lamp comprises a power generation mechanism, wherein the power generation mechanism comprises a solar panel, a protection plate, a cleaning mechanism and a translation mechanism; and the translation mechanism comprises a first motor, a suspension wire, a weight block and two translation assemblies, each translation assembly comprises a first driving shaft, a driving wheel, a pull wire and a bearing, and the cleaning mechanism comprises an air inlet chamber, an air inlet pipe,an air outlet pipe, a driving assembly and a plurality of cleaning assemblies. According to the intelligent solar street lamp with the automatic protection and cleaning functions, during rainy days, the translation mechanism is utilized to drive the protection plate to move above the solar panel, so that corrosion and damage caused by the fact that acid rain falls on the surface of the solar panelto the solar panel are prevented, and then the solar panel is protected, in addition, during the moving process of the protection plate, nozzles are enabled to swing and spray out air through the cleaning mechanism, and dust on the surface of the solar panel is blown away, so that the cleaning effect is achieved, and the power generation efficiency of the solar panel and the practicability of equipment are improved.