538 results about "Active component" patented technology

A method and a system for estimating the value of the voltage relating to an element under voltage ET. The system comprises alive element ET, a first capacitor C1.sx, a second capacitor 01.dx, a third capacitor 02.sx, a fourth capacitor 02.dx, a fifth capacitor CS.dx. The method involves the use of the electrical values obtained through this system.

An ultrasonic transducer device includes a substrate, an ultrasonic oscillation unit, a ground signal line, a DC voltage signal line and an AC voltage signal line. The substrate includes an active component area and a wiring area located around the active component area. The ultrasonic oscillation unit includes a first electrode layer, a second electrode layer, a third electrode layer and a cavity. The first electrode layer is located on a first side of the cavity, and the second electrode layer and the third electrode layer are located on a second side of the cavity. The ground signal line, disposed in the wiring area, is electrically connected to the first electrode layer. The DC voltage signal line, disposed in the wiring area, is electrically connected to the second electrode layer. The AC voltage signal line, disposed in the wiring area, is electrically connected to the third electrode layer.

A superconducting quantum processor unit for quantum computing is provided. The processor unit is formed from the union of a qubit chip and a wiring chip with superconducting bonding bumps and spacers. The bumps may be densely distributed around active elements between the two chips and effectively form a Faraday-Cage around the qubits, control signal waveguides etc. The qubit chip has strategically spaced qubits and an inductively coupled probe line and the wiring chip has a bus coupling resonator with a number of voltage nodes and anti-nodes, a resonator pump and at least one SQUID. Magnetic flux applied through the SQUIDs changes their impedances and modifies the microwave boundary conditions of the bus. This allows in-situ shifting of electric field distributions of the resonance modes of the bus along the length of the bus. This tunes the coupling rates of the bus to all qubits simultaneously.

A semiconductor device includes a semiconductor substrate, an interconnect, and at least one thermal via. The semiconductor substrate includes at least one active component. The interconnect is disposed over and electrically coupled to the at least one active component. The at least one thermal via penetrates through the interconnect and is thermally coupled to the at least one active component, where a thermal conductivity of the at least one thermal via is different than a thermal conductivity of a dielectric layer of the interconnect.

The invention relates to a niobium-based solid electrolyte and a preparation method and application thereof, the niobium-based solid electrolyte has the following chemical general formula: xLia Ab-yNbCl5-(1-y) McBd, 0.1 < = x < = 3, 0 < y < 1, 0 < a < = 3, 0 < b < = 1, 0 < c < = 3 and 0 < d < = 8, and M comprises at least one of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Mo, W, Ce and Eu. The niobium-based solid electrolyte can effectively reduce the influence of inactive components such as electrolyte in a composite positive electrode of a solid-state battery on the energy density of the solid-state electrolyte, effectively improves the energy density and power density of the solid-state lithium battery, has good room-temperature ionic conductivity, and has a good application prospect in the field of lithium batteries.

The invention provides a cardiovascular and cerebrovascular health care product production process control method and system based on multi-parameter collaborative optimization. Wherein thermal field temperature parameters of active components in a mixing container are collected in real time, and a parameter matrix is constructed by combining degradation kinetics and phase change state parameters; establishing a correlation model of a thermal stability layer, a phase change layer and an anti-oxidation attenuation layer based on a deep learning algorithm, and generating a differential control instruction of the double-spiral stirrer by optimizing a thermodynamic analysis rule; a compound motion mode of radial sweeping stirring of the main spiral body and axial pulse overturning of the auxiliary spiral body is executed, and a semiconductor temperature control device is synchronously adopted for temperature gradient compensation, so that dynamic matching of the stirring speed and temperature control parameters is realized; mapping lipid carrier premixing and inclusion processes and sustained-release matrix crosslinking parameters to a temperature regulation and control system to form comprehensive process parameter closed-loop feedback; and the degradation kinetic parameters are reversely corrected through online detection data, and the parameter matrix is iteratively updated until a preset quality index is reached.

The present disclosure provides an electronic device. The electronic device includes a flexible element, and a sensing element adjacent to the flexible element and configured to detect a biosignal. The electronic device also includes an active component in the flexible element and electrically connected with the sensing element. A method of manufacturing an electronic device is also disclosed.

In an exemplary embodiment, a phased array antenna comprises multiple subcircuits in communication with multiple radiating elements. The radio frequency signals are independently adjusted for both polarization control and beam steering. In a receive embodiment, multiple RF signals of various polarizations are received and combined into at least one receive beam output. In a transmit embodiment, at least one transmit beam input is divided and transmitted through multiple radiating elements, with the transmitted beams having various polarizations. In an exemplary embodiment, the phased array antenna provides multi-beam formation over multiple operating frequency bands. The wideband nature of the active components allows for operation over multiple frequency bands simultaneously.

A semiconductor device includes a semiconductor die. The semiconductor die includes a substrate including at least one active component, an interconnect disposed over and electrically coupled to the at least one active component, and at least one first thermal control element disposed inside the interconnect and thermally coupled to the at least one active component. The at least one active component is surrounded by the at least one first thermal control element in a vertical projection along a stacking direction of the substrate and the interconnect.

The invention belongs to the technical field of semiconductor material processing, and relates to a bonding method and a wafer room temperature bonding method, which are executed by a bonding system comprising a film forming chamber, a bonding chamber, a transmission chamber and a bonding point location preparation unit. The method comprises the following steps: forming an active film layer containing unsaturated bond active points on the surface of a wafer; active components are introduced through the bonding point site preparation unit, so that the active components react with the active point sites to form bonding point sites; transmitting the two wafers to a bonding chamber and aligning the two wafers; pressure is applied, and bonding is completed by means of the pressure and the bonding reaction between the bonding points. According to the method, the flat and active bonding surface can be prepared, the lattice structure is not influenced in the bonding process, and the quality of the bonding wafer product can be improved.

The invention discloses a high-magnification low-expansion modified silicon-carbon composite material and a preparation method and application thereof, the modified silicon-carbon composite material is of a particle structure and comprises a silicon-carbon material serving as an inner core and a fluorine-containing conductive polymer layer coating the surface of the silicon-carbon material; the silicon-carbon material is obtained by coating the surfaces of silicon particles with carbon layers; the fluorine-containing conductive polymer layer is obtained by initiating polymerization of a first monomer and a second monomer, and the first monomer is a fluorine-containing polymer monomer. The preparation method comprises the following steps: putting the silicon-carbon material, a first monomer and a second monomer into a hydrothermal reaction kettle, adding a mixed solvent of water and ethanol, heating while stirring, adding an initiator after heating to a target temperature, preserving heat, reacting, cooling, carrying out suction filtration, washing with water, and drying to obtain the fluoro-coated silicon-carbon material, namely the modified silicon-carbon composite material. According to the application, the modified silicon-carbon composite material serves as a negative electrode active component and is mixed with a conductive agent, a binding agent and a dispersing agent, so that the negative electrode coating slurry for preparing the negative electrode plate of the lithium ion battery is formed.

This application relates to a heat dissipation shielding structure and a processing method, a circuit board assembly, and an electronic device. The printed circuit board includes a mounting surface. Electronic components are mounted on the mounting surface. The electronic components include an active component and a passive component. The heat dissipation shielding structure includes an insulating layer. The insulating layer is covered on the mounting surface, and wraps at least a side surface of the active component, so that a side that is of the insulating layer and that faces away from the mounting surface forms a first surface together with a top surface of the active component. A shielding layer is covered on the first surface, a shape of the shielding layer matches a shape of the first surface, and the shielding layer is electrically connected to a ground network of the printed circuit board.

An apparatus and method enabling a reduction in a resistance of a conductive path electrically connecting an upper substrate and a lower substrate. The apparatus includes a first semiconductor layer with element formation regions disposed adjacent to one another via element isolation regions, each of the element formation regions having a first active element, contact regions on an element isolation region side of a front layer portion of the element formation regions, conductive pads connected to the contact regions and extending across the element isolation region, a first insulating layer, a second semiconductor layer on the first insulating layer and having a second active element, a second insulating layer covering the second semiconductor layer, and conductive plugs extending from the second insulating layer to the conductive pad, the conductive plugs including a material identical to a material of the conductive pad and formed integrally with the conductive pad.

The invention discloses a method for preparing an hBN ceramic coating on the surface of a SiCp / 2024Al substrate, and belongs to the technical field of surface treatment. The invention discloses a method for preparing an hBN ceramic coating on the surface of a SiCp / 2024Al substrate. The method comprises the steps that the SiCp / 2024Al substrate is polished and ground and then dried after being subjected to ultrasonic cleaning; adding sodium silicate, sodium hydroxide, the hexagonal boron nitride nano-powder and a surface active component into deionized water, and performing ultrasonic dispersion to obtain a composite electrolyte; placing the composite electrolyte in a stainless steel electrolytic bath, and connecting the stainless steel electrolytic bath to a power supply cathode of a plasma discharge system; the pretreated SiCp / 2024Al substrate is connected to the positive electrode of a power source of a plasma discharge system and immersed in the composite electrolyte; and the plasma discharge system operates, under the action of positive and negative pulses, the nano-particles are driven to migrate to the surface of the SiCp / 2024Al substrate and participate in reaction co-deposition, and the compact and uniform large-thickness high-electrical-insulation hBN ceramic coating grows on the surface of the substrate.

The invention belongs to the technical field of mass spectrum ionization sources, provides an online detection mass spectrum ionization source for gas components at an outlet of a combustion chamber of an aero-engine, and solves the problem that an existing ionization source is difficult to be applied to a field test for measuring the concentration of components at the outlet of a combustion chamber of a real aero-engine. According to the technical scheme, the device comprises an ionization source cavity and a radio frequency windowless discharge lamp, a plate electrode, a taper hole electrode, a lamp holder electrode, a direct current transmission electrode, a radio frequency transmission electrode and a differential electrode are sequentially arranged in the ionization source cavity in the axis direction, and a discharge gas inlet is formed in the ionization source cavity. One end of the radio frequency windowless discharge lamp is connected to the discharge gas inlet, and the other end of the radio frequency windowless discharge lamp extends into the lamp holder electrode; the taper hole electrode enables fuel gas to be fed in a molecular beam mode, efficient transmission of stable components and active components in the fuel gas is guaranteed, efficient transmission of ions is achieved in the mode that the direct-current transmission electrode and the radio-frequency transmission electrode are combined, and full-spectrum online analysis of the components of the fuel gas at the outlet of a combustion chamber of an aero-engine can be achieved.

A semiconductor device includes a plurality of active components and an isolation component. Each active component includes a plurality of active channel sheets vertically stacked and a metal gate. The isolation component isolates the adjacent two of the active components, and includes a plug structure. The plug structure is formed of a material the same as that of the metal gate.

A preparation method for a lithium metal powder, a product thereof, a prepared lithium metal negative electrode, and a finally assembled liquid electrolyte lithium-ion battery and solid electrolyte lithium-ion battery. The preparation method for a lithium metal powder comprises: mixing a lithium metal raw material with a polymer additive in an inert gas atmosphere, and then subjecting the mixture to freezing ball milling. The polymer additive does not react with the lithium metal raw material, and the Rockwell hardness of the polymer additive is 70-110. By means of the preparation method, a lithium metal powder having a uniform size can be prepared, the median particle size of which is not higher than 500 nm and minimally can reach 10 nm; and the preparation method has a low raw material cost and a simple and feasible process. A lithium-ion battery assembled by taking the lithium metal powder prepared by means of the method as a negative electrode active component has a high dendritic crystal growth critical current density and excellent electroplating / stripping cycle stability.

A semiconductor device comprises a wafer with an active interposer comprising one or more active components in an active component layer. The semiconductor device comprises a first chiplet that is mounted on the wafer and above the active interposer, a second chiplet that is mounted on the wafer and above the active interposer, and an interconnect layer having an interconnection that bridges between the first chiplet and the second chiplet. The interconnect layer is configured to transfer at least one of power and a signal from a bottom-side bump on a bottom side of the wafer to at least one of the first chiplet and the second chiplet, directly or indirectly, through a TSV of the active interposer.

The invention belongs to the technical field of low-carbon dehydrogenation aids, and particularly relates to a heat balance aid as well as a preparation method and application thereof. The heat balance auxiliary agent comprises Al, Ca, Si, Cu and Mn elements existing in an oxide form; wherein the Al2O3, the CaO and the SiO2 jointly form a skeleton structure of the auxiliary agent, and the CuO and the MnO2 are used as active components and are attached to the skeleton structure; the molar ratio of metal elements in the heat balance auxiliary agent is as follows: Al: Ca: Si: Cu: Mn = (49-78.9): (15-25): (1-10): (5-15): (0.1-1). The heat balance additive prepared by the invention shows excellent anti-sintering capability, long service life and stable heat supply performance under harsh reaction conditions such as propane dehydrogenation, and can effectively improve the selectivity of target olefin and reduce the generation of byproducts such as methane.

The invention belongs to the field of catalytic electrodes, and particularly discloses a modified nickel-based electrode and a preparation method thereof.The preparation method of the modified nickel-based electrode comprises the steps that 1, a nickel-based electrode is placed in a precursor solution to be soaked and then transferred into an inert atmosphere or a vacuum atmosphere to be roasted, and a primary modified electrode is obtained; and 2, the step 1 is repeated for one or more times, a secondary modified electrode or a multi-stage modified electrode can be prepared, and the precursor solution is any one or more than two of a sodium phosphite solution and a metal salt solution. A nickel-based electrode is treated through sodium phosphite, phosphide with heterojunction and electronic properties is formed on the surface of the nickel-based electrode, more active sites are provided, a metal salt solution is introduced to treat the sodium phosphite, new active components are introduced, and the performance of the catalytic electrode is regulated and controlled through metal deposition and alloying; and the synergistic effect between the introduced metal element and nickel interacts in the catalytic reaction, so that the catalytic activity and selectivity of the electrode are jointly improved.

The invention relates to an operating device, comprising: a first microcontroller comprising at least one first measurement input; a voltage source; a resistance network, a first tap of which is conductively connected to the first measurement input; at least one switching element integrated in a resistance network which is configured such that different switching states correspond to different switching potentials at the first measurement input; the second microcontroller is located at the upper level of the first microcontroller; and an active component integrated into the resistive network, said active component being actuated such that a disturbance potential having a predetermined time characteristic is used as a measurement potential present at the first measurement input; wherein the second microcontroller is designed, during the actuation of the at least one active component, to at least temporarily prevent a subsequent output of the detection result to the superordinate control unit when the detection result of the first microcontroller does not correspond to a predetermined time characteristic of the disturbance potential. In addition, the invention also relates to related uses and methods.

The invention relates to the technical field of electrical fault detection, in particular to an online fault judgment and automatic detection method for a marine cable, which comprises the following steps of: acquiring ground leakage current and load current in operation, extracting an active component of the leakage current and analyzing the nonlinear correlation between the active component and the load current to realize online early warning of insulation degradation; when the ship is in a working condition of allowing short-time power failure of partial non-critical loops, positioning a fault branch based on a normalization result of the ground capacitance variation before and after the power failure of each branch and the cable length; after power supply is recovered, the fault type is judged by combining the leakage current fundamental wave and phase voltage phase difference and the harmonic distortion rate; during power-off maintenance, high-frequency carrier waves are injected, the position of a fault point is determined according to current attenuation abnormity, correction is carried out by combining temperature and vibration factors, and the detection accuracy and the positioning precision are improved.

The invention belongs to the field of batteries, and particularly relates to a negative plate, a preparation method thereof and a lithium ion battery, the negative plate comprises a current collector and an active layer arranged on at least one side of the current collector; the active layer comprises a lower active layer close to the current collector and an upper active layer far away from the current collector; the true density of the active components in the lower active layer is 2.1-2.4 g / cm < 3 >; and the true density of the active component in the upper active layer is 1.8-2.2 g / cm < 3 >. According to the technical scheme, the defects existing in an existing lithium ion battery negative electrode coating process are overcome, the problems that the active substance loading capacity is limited, the cycle life is short, and the fast charging performance is poor are solved by optimizing the structural design of negative electrode double-layer coating, and the requirement of the market for a high-performance lithium ion battery is met.

The invention provides a preparation method of a bidirectional pulse electrodeposition composite nickel-based electrode. The preparation method mainly comprises the following steps: (1) pretreating a nickel-based substrate; (2) in a nickel-based salt electroplating aqueous solution, carrying out electro-deposition on the treated nickel-based base material by adopting bidirectional pulse current to obtain a composite nickel-based electrode material; and (3) drying the obtained composite nickel-based electrode in a nitrogen oven to obtain the composite nickel-based electrode. Compared with the existing electro-deposition technology, the bidirectional pulse type electro-deposition method can effectively form a compact, wear-resistant and scouring-resistant load catalyst layer, can significantly improve the loading and dispersion of electrode active components, and at the same time, nickel-based metal and auxiliary active metal are mutually doped to form multi-element metal load, so that the performance of the electrode is improved. The electro-catalysis effect is greatly promoted through the electron action between different atoms, and the water electrolysis performance is effectively improved. Compared with constant-current electrodeposition, the method is simple in process condition, stable in performance, high in water electrolysis efficiency and easy to industrially expand, and has important industrial application prospects.

The invention relates to a room-temperature sulfur-based sodium ion battery based on a hard carbon negative electrode and a sulfurized polyacrylonitrile positive electrode and preparation thereof, the sodium ion battery comprises the positive electrode, the negative electrode and electrolyte, and is characterized in that the positive electrode contains sulfurized polyacrylonitrile as a positive electrode active component; the negative electrode comprises resinous hard carbon and / or coal-based hard carbon as a negative electrode active component, and the electrolyte is composed of an organic solvent and a sodium salt. Compared with the prior art, the method has the advantages that the traditional sodium electric bottleneck is broken through from multiple dimensions of energy density, cycle life, safety, cost and the like through material characteristic complementation and synergistic effect, and the first-circle reversible capacity of the constructed hard carbon-SPAN total battery system at 50mA g <-1 > reaches 650mAh g <-1 > and the like.

A preparation method of a carbon-free Fe7Se8-based electrode material for Na+-storage anode and its application are provided. The presented method includes: dissolving ferric chloride and ammonium dihydrogen phosphate in deionized water at a room temperature, then stirring and transferring into an autoclave to perform the hydrothermal reaction, obtaining a spindle-shaped Fe2O3 after washing and drying processes; grinding and mixing the prepared Fe2O3 with a selenium powder combined with the sodium hypophosphite hydrate, which are placed in the different regions of a tube furnace. After heating treatment, the Fe7Se8 / Fe3 (PO4)2 Na+-storage anode is obtained. The material prepared by the proposed method is applied as a highly efficient Na+-storage anode with long cycle stability and high-rate performance, effectively avoiding the crushing of active components caused by the large volume expansion of the electrode in the charging / discharging process, and improving the cycle life of the battery.

The invention provides an offshore wind power direct current sending-out system structure based on an S7 bridge arm current source converter and a control method of the offshore wind power direct current sending-out system structure. The topological characteristic provided by the invention is that an S7 bridge arm is connected in parallel with the direct current side of the 6-pulse CSC, and the switch of the S7 bridge arm and the switch of each bridge arm of the 6-pulse CSC are distributed, so that multi-active and multi-reactive independent control is realized. The active quantity of the land CSC is controlled by constant direct current voltage, and the reactive quantity of the land CSC is controlled by reactive power. When the collected submarine cable has a fault, the S7CSC reduces the reference value of the AC bus and reduces the current fed by the CSC to a fault point, thereby preventing fault transient overcurrent and realizing fault ride-through. The technical scheme provided by the invention has the advantages that: S7CSC has two control degrees of freedom, can realize independent control of active components and reactive components, stabilizes the offshore AC voltage and frequency, can adapt to the fluctuation of wind power output, effectively inhibits the increase of fault current at the offshore AC collection fault, and realizes fault ride-through.

The invention provides an active element selection method for a hybrid RIS-assisted cellular-removal MIMO system, and the method comprises the steps: building a channel model, deducing an expression of a downlink reachable rate, building a joint optimization problem of an AP beam matrix, a hybrid RIS beam matrix and an active RIS element position, and carrying out the joint optimization of the positions of the AP beam matrix, the hybrid RIS beam matrix and the active RIS element. AP power constraint, active RIS power constraint and RIS unit mode constraint serve as constraint conditions of the joint optimization problem, and the joint optimization problem is converted into an AP beam matrix optimization problem and a hybrid RIS beam forming matrix-active element position optimization problem by utilizing Lagrange dual transformation and multi-dimensional complex quadratic transformation; a convex optimization solver is adopted to alternately solve until convergence, an optimization result is obtained, and a precoding matrix of an AP, phase shift of an RIS and power and position selection of an active element are adjusted according to the optimization result, so that the sum rate of a user of the RIS-assisted cellular-removal MIMO system is maximized, and the performance of the cellular-removal MIMO system is improved.

The invention relates to the technical field of power electronics, and discloses a self-adaptive compensation method based on a unified power quality conditioner and a photovoltaic power quality adjusting system. The method comprises the following steps: on the basis of a minimum equalization algorithm, updating a weight by utilizing input, an error, a variable step size factor, a convergence time control parameter and a variable leakage factor, and constructing a variable leakage minimum equalization algorithm; based on a variable leakage minimum equalization algorithm, a reference current active component amplitude and a reference current reactive component amplitude are acquired to acquire a three-phase current comprehensive reference value, and the three-phase current comprehensive reference value is compared with a three-phase current measured value to control the parallel static var compensator to realize current compensation; based on a variable leakage minimum equalization algorithm, a fundamental frequency unit average value and a fundamental frequency orthogonal average value are obtained to obtain a fundamental frequency component total amplitude, a three-phase voltage compensation amount and a three-phase harmonic compensation amount are calculated, a three-phase reference injection voltage is generated, and the three-phase reference injection voltage is compared with a three-phase actual injection voltage to control the series static var compensator to achieve voltage compensation.

The invention discloses a low-temperature plasma activated water preparation device and method, and belongs to the field of low-temperature plasma activated water preparation. The low-temperature plasma activated water preparation device comprises a filtering module and a plasma generation module, the top of the filtering module is detachable, is provided with a water inlet, is connected with the peristaltic pump through a hose, is filled with various filtering materials, and is connected with the dielectric barrier reactor at the bottom; the plasma generation module comprises a dielectric barrier discharge reactor, the upper end of the outer side of the reactor is provided with a gas inlet hole and connected with a gas cylinder through a gas flowmeter, the middle upper portion of the outer side is wrapped with a layer of iron gauze and connected with the high-voltage output end of a power source, and a stainless steel rod is coaxially placed in the center and connected with a ground electrode. And the lower end of the discharge blocking medium corundum ceramic tube is connected with the base and is provided with a water outlet. The device realizes filtration and sterilization integrated treatment of natural water, and can efficiently prepare activated water with high active component concentration.