569results about How to "Stable generation" patented technology

Resonance can be surely provided under any plasma condition in such a manner that an antenna (3) is arranged in an opening of an upper part of a chamber (1) to produce an electromagnetic field generated by a microwave, a top plate (4) for sealing the opening of the chamber (1) is provided under the antenna (3), a ring-shaped ridge (41) is provided on a lower surface of the top plate (4) such that a thickness thereof in a diameter direction is tapered so as to be varied sequentially. Thus, only one kind of top plate has the same effect as a top plate having various thicknesses, so that absorption efficiency to the plasma can be considerably improved and the plasma can be generated stably over a range from a high pressure to a low pressure.

The invention is directed to a method and an arrangement for generating extreme ultraviolet (EUV) radiation, i.e., radiation of high-energy photons in the wavelength range from 11 to 14 nm, based on a gas discharge. The object of the invention, to find a novel possibility for generating EUV radiation in which an extended life of the system is achieved with stable generation of a dense, hot plasma column, is met according to the invention in that a preionization discharge is ignited between two parallel disk-shaped flat electrodes prior to the main discharge by a surface discharge along the superficies surface of a cylindrical insulator with a plasma column generated through the gas discharge with pulsed direct voltage, which preionization discharge carries out an ionization of the working gas in the discharge chamber by means of fast charged particles. The preionization discharge is triggered within a first electrode housing and the main discharge takes place between a narrowed output of the first electrode housing and a part of the second electrode housing close to the outlet opening of the discharge chamber. The plasma develops in a part of the second electrode housing covered by a tubular insulator and, as a result of the current-induced magnetic field, contracts to form a dense, hot plasma column, one end of which is located in the vicinity of the outlet opening of the second electrode housing.

Even when compression stress is generated because a volume of a thermal insulation layer 2 is expanded due to oxidized by oxygen in the air, occurrence of cracks and fractures of the thermal insulation layer and a heating conductor 3 caused by the cracks are prevented by dispersing the compression stress. A pressure wave generator comprises a substrate 1, the thermal insulation layer 2 of porous material which is formed on a surface of the substrate 1 in thickness direction, and the heating conductor 3 of thin film formed on the thermal insulation layer 2, and generates pressure waves by heat exchange between the heating conductor 3 and a medium. When a thickness at the center of the thermal insulation layer 2 in width direction W is used as a reference thickness, and it is assumed that distribution of thickness of thermal insulation layer in the width direction is averaged with the reference thickness, porosity in an outer peripheral portion of the thermal insulation layer is made smaller than porosity in the center portion. By making the porosity in the outer peripheral portion of the thermal insulation layer 2 smaller, a number of immovable points on the outer periphery of the thermal insulation layer 2 restricted by the substrate 1 is increased and the positions of them are dispersed, so that the compression stress compressed in the outer peripheral portion of the thermal insulation layer 2 can be dispersed.

In iris authentication, iris regions are extracted from a plurality of images (2a, 2b). The extracted iris regions are subjected to polar coordinate transformation (3a, 3b) and band limitation (4a, 4b). Thereafter, an iris code is generated from the coordinate-transformed, band-limited iris regions (5a, 5b). The iris code is subjected to rotational compensation (6a, 6b). A plurality of resultant iris codes are synthesized into a single iris code by determining the bit value of each bit based on a majority rule (7a, 7b).

A laser machining apparatus comprises a nozzle for ejecting a jet liquid to a workpiece and a liquid supply unit for supplying the jet liquid to the nozzle, while a laser beam is introduced into a jet liquid column ejected from the nozzle. The laser machining apparatus further comprises a laminar flow forming channel for supplying the jet liquid to the nozzle in a laminar state. The laminar flow forming channel includes a distribution channel formed by a cavity for annually distributing the jet liquid, which is supplied from the liquid supply unit, around an axis of the nozzle, an interconnecting channel disposed to be communicated with the distribution channel at the downstream side thereof in an axial direction of the nozzle and formed by an annular cavity around the axis of the nozzle to provide a narrower flow passage than the distribution channel, and a liquid reservoir chamber adjacently disposed upstream of the nozzle in the axial direction thereof and storing the jet liquid to be supplied to the nozzle. The liquid reservoir chamber has an outer peripheral edge being communicated with the interconnecting channel over an entire circumference of the annular shape thereof.

The invention discloses establishment and application of a CHO cell line for producing a fucose-free monoclonal antibody. A CRISPR / Cas9 technology is utilized to encode an FUT8 gene of a CHO cell to obtain the FUT8 gene silenced CHO cell line for stabilizing FUT8 gene deletion (hereinafter referred to as FUT8- / -cell line). By adopting physicochemical property and bioactivity detection of an FUT8- / -cell expressed antibody, a glycoform detection result indicates that fucose of the FUT8- / -cell expressed monoclonal antibody is completely eliminated, a fucose-containing monoclonal antibody expressed by a wild CHO cell serves as a contrast, the affinity with a Fcgamma RIIIa antigen of the fucose-free monoclonal antibody is improved by 7 times, and the ADCC effect is improved by 25 times.

The present invention contemplates a programmed displacement to prolong the usage life of UV crystal for deep UV generation by displacing step by step the crystal with interval between steps much shorter than the degradation time of the crystal. Meanwhile, the present invention contemplates the programmed displacement to obtain stable UV generation by avoiding defect locations of the crystal. Further, the present invention contemplates the programmed displacement to achieve optimal stability in UV power for each layer of UV ablation in photo-refractive surgery.

The invention relates to an atmospheric pressure low-temperature plasma jet reactor with preionization structure, which belongs to plasma discharge reactor technical field, and the reactor is characterized in that: the device main body is a millimeter magnitude main silica tube with one open end; a part is arranged above the open end at the lower part with 15 to 25mm, and the part becomes the thinnest at 20mm part, and a ring-shaped electrode is wound on the part; a thin silica tube is connected at the closed end arranged in the inner part thereof through the closed end arranged at the upper part of the silica tube; and a needle electrode is arranged in the thin silica tube. An earthing electrode is arranged below the open end of the main silica tube; and the argon gas is filled into the needle electrode, and the oxygen gas is filled into the main silica tube. The needle electrode and the ring-shaped electrode can be exerted with the same high voltage; the needle electrode discharge can supply the seed electrons for the ring-shaped electrode discharge, and a stable glowing discharge plasma jet is arranged between the ring-shaped electrode and the earthing electrode. The reactor has the beneficial effects that the obtained plasma jet can generate high-concentration chemical activity species, and the reactor has practical value.

A nano-ceramic particle reinforced aluminum foam matrix composite material and a preparation method thereof relates to an aluminum foam matrix composite material and a preparation method thereof. The invention solves the problem that in the preparation method of the ceramic particle reinforced aluminum foam matrix composite material, ceramic particles are micron-sized, the uniform distribution of nano-ceramic particles can not be realized, and the existing ceramic particle reinforced aluminum foam matrix composite material has wide aperture and low compressive yield strength. The aluminum foam matrix composite material of the invention is prepared from aluminum or aluminum alloy powder, CaCO3 and nano-ceramic particles. The preparation method comprises the following steps: using a ball mill to process raw material powder and stearic acid, mixing powder, then placing the mixture in a graphite mould to perform vacuum hot press sintering and obtain a perform, performing forward extruding to obtain a semi-finished product, heating and foaming to obtain the finished product. The aperture of the aluminum foam matrix composite material is less than 1mm, and the compressive yield strength is 50-98MPa which is 2-20 times of that of the existing aluminum foam matrix composite material. By using the method of the invention, the nano-ceramic particles can be uniformly distributed in the aluminum foam matrix composite material.

There is provided a plasma reactor with an internal transformer. The plasma reactor comprises: a plasma chamber with a gas inlet and a gas outlet, for providing a plasma discharging space; one or more core cylinder jackets for providing a core storage space in the plasma discharging space and forming a plasma centralized channel and a plasma decentralized channel by including one or more through-apertures; and one or more transformers each including a magnetic core with primary winding surrounding the through-aperture and installed in the core storage space, wherein the plasma discharging space comprises one or more first spatial regions to form the plasma centralized channel and one or more second spatial regions to form the plasma decentralized channel. In the plasma reactor, since the transformer is installed in the plasma chamber, energy is transferred with almost no loss from the transformer to the plasma discharging space and therefore the energy transfer efficiency is very high. Then, since most of gases flow through the first spatial region and the through-aperture inside the plasma chamber, most of active gases are generated in the plasma centralized channel. Consequently, the plasma reactor is very suitable for generating large amount of active gases. Further, even though the plasma chamber is composed of a conductive material, since no special insulating region needs to be formed, it is very easy to constitute the plasma chamber. Further, since the plasma chamber itself is sufficiently capable of forming an outer case, the plasma reactor is very simply manufactured.

Provided is a cylindrical battery in which an electrode assembly fabricated by rolling a cathode / separator / anode and an electrolyte are provided in a cylindrical can, wherein a cap assembly mounted on the opening top of the cylindrical can comprises: a safety vent provided with a predetermined notch, to allow breakage due to high-pressure gas of the battery, a current interruptive device to interrupt current, welded to the bottom of the safety vent, and a gasket for the current interruptive device to surround the periphery of the current interruptive device, wherein the current interruptive device comprises two or more through holes to allow exhaustion of gas, wherein the through holes have a size of 20 to 50% with respect to the total area of the current interruptive device.

For an error rate QBER, threshold values are preset, including a threshold value Qbit for frame synchronization processing, a threshold value Qphase for phase correction processing, and a threshold value QEve 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 Qbit, frame synchronization processing is performed. When the measurement value of QBER is deteriorated more than Qphase, phase correction processing and frame synchronization processing are performed. When QBER does not become better than QEve 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.

An ion generating apparatus 1 has an electric cleaning mechanism 79 for burning out attachment adhered on an ion generating electrode 7 by electric heating. Adhesion of dirt and the like onto the end portion of the electrode where an electron generation field concentrates will considerably ruin the ion generation efficiency. So that burning out of attachment adhered onto the end portion 7a of the ion generating electrode 7 using the electric cleaning mechanism 79 is extremely effective in terms of avoiding such nonconformity. Object of the cleaning will be attained to a sufficient degree if only the dirt adhered onto the sharpened end portion of the electrode 7, which is responsible for the ion generation, is selectively removed, which is also advantageous in simplifying the apparatus since there is no need to excessively raise the electric heating capacity of the electric cleaning mechanism 79.

A manner of generating internal voltages such as a high voltage, an intermediate voltage and an internal power supply voltage is switched in accordance with a power supply level setting signal. When the voltage level of an external power supply voltage is low, a current drive transistor receiving an output of a comparing circuit and an auxiliary drive transistor are forcedly set in a conductive state, and external power supply voltage is transmitted on an internal power supply line. At this time, the comparing operation of the comparing circuit is stopped. When the level of the external power supply voltage is high, the comparing circuit is activated down convert the external power supply voltage for generating a peripheral power supply voltage on the internal power supply line.

A laser machining apparatus comprises a nozzle for ejecting a jet liquid to a workpiece and a liquid supply unit for supplying the jet liquid to the nozzle, while a laser beam is introduced into a jet liquid column ejected from the nozzle. The laser machining apparatus further comprises a laminar flow forming channel for supplying the jet liquid to the nozzle in a laminar state. The laminar flow forming channel includes a distribution channel formed by a cavity for annually distributing the jet liquid, which is supplied from the liquid supply unit, around an axis of the nozzle, an interconnecting channel disposed to be communicated with the distribution channel at the downstream side thereof in an axial direction of the nozzle and formed by an annular cavity around the axis of the nozzle to provide a narrower flow passage than the distribution channel, and a liquid reservoir chamber adjacently disposed upstream of the nozzle in the axial direction thereof and storing the jet liquid to be supplied to the nozzle. The liquid reservoir chamber has an outer peripheral edge being communicated with the interconnecting channel over an entire circumference of the annular shape thereof.

An extreme ultra violet light source apparatus in which debris moving within a chamber are prevented from reducing reflectance or transmittance of optical elements of an EUV collector mirror, etc, and extreme ultra violet light can stably be generated in a long period. The apparatus includes: a target supply unit for supplying a target to a predetermined position within a chamber; a driver laser for applying a laser beam to the target to generate first plasma; a collector mirror provided within the chamber, for collecting extreme ultra violet light radiated from the first plasma; a gas supply unit for supplying a gas into the chamber; an excitation unit for exciting the gas to generate second plasma around a region where the first plasma is generated; and an exhaust unit for exhausting the chamber and ejecting debris emitted from the first plasma to outside of the chamber.

The invention provides a rotating disc type dust aerosol generating device characterized in that an agitating motor is controlled by a computer to drive an agitating blade in a flowing chamber to rotate, and dust in the flowing chamber is uniformly agitated and conveyed to a pit which is arranged on a rotating disc below a drain hole on the bottom of the flowing chamber and specially used for carrying dust; and dust stored in the pit on the rotating disc is absorbed into a dust spray dissolution cavity by a negative pressure generator which is controlled by the computer through a negative pressure dust suction pipe, and dust aerosol is formed and then conveyed into an aerosol detection laboratory chamber to be detected and experimented. When the agitating motor controlled by the computer rotates at different rotating speeds and uses rotating discs of different pit widths, the quantity of dust conveyed to the negative pressure dust suction pipe is different, and the concentration of dust aerosol formed by dust flowing in the dust spray dissolution cavity is also different. Therefore, dust aerosol of stable concentration can be continuously, accurately and quantitatively generated by selecting a rotating disc of proper pit width and proper rotating disc rotating speed and remaining unchanged.

A plasma device which is provided with a container, a gas supply system, and an exhaust system. The container is composed of a first dielectric plate made of a material capable of transmitting microwaves. An antenna for radiating microwaves is located on the outside of the container, and an electrode for holding an object to be treated is located inside the container. The microwave radiating surface of the antenna and the surface of the object to be treated with plasma are positioned in parallel and opposite to each other. A wall section of the container other than that constituting the first dielectric plate is composed of a member of a material having electrical conductivity higher than that of aluminum, or the internal surface of the wall section is covered with the member. The thickness (d) of the member is larger that (2 / μ0σ)1 / 2, where σ, μ0 and ω respectively represent the electrical conductivity of the member, the permeability of vacuum and the angular frequency of the microwaves radiated from the antenna.

The invention discloses a preparation method of high-reinforcement modified anhydrous calcium sulfate crystal whiskers. The method comprises the following steps that: firstly, limestone powder is added into stirred water to be prepared into calcium salt aqueous emulsion; then, sulfuric acid and crystal modifiers are sequentially added into the stirred water to be prepared into sulfuric acid water solution; next, the calcium salt aqueous emulsion containing 1 mol part of Ca<2+> is added into the sulfuric acid water solution containing 2 mol parts of SO4<2-> with the temperature reaching 100 to 110 DEG C, then, morphology control agents are added, the materials are subjected to stirring and aging for 2 to 3.5 hours under the temperature condition being 110 to 120 DEG C, leaching and washing are carried out, and calcium sulfate hemihydrate crystal whisker wet products are obtained; the calcination drying finally is carried out under the temperature condition higher than 200 DEG C to obtain the anhydrous calcium sulfate crystal whiskers; and then, the surface modification treatment is carried out to finally obtain the high-reinforcement modified anhydrous calcium sulfate crystal whiskers. The preparation method has the advantages that the product quality is high, the cost is low, the preparation process is short, the reaction condition is mild, and in addition, green and environmental-friendly effects can be realized.

Highly stable floating platform for measuring surface and subsurface environmental variables. It consists of a main toroidal body, inside of which equipments are installed, mainly on its base, to maintain low and nearby the centers of gravity and of buoyancy, allowing the in situ inspection, maintenance and installation of equipments. One winch in its interior allows the translation of equipment and / or to take water samples, from surface to a user-defined depth, using a cable deployed through the center of the platform, for providing power and communication with the surface to said equipment.

The invention discloses an image generation method based on a conditional capsule generative adversarial network. The image generation method comprises the following steps: collecting image data and preprocessing an image; Extracting a condition vector; Acquiring random noise; Designing a neural network as a generator to map the random noise and the condition vector into a generated picture; Designing another neural network as a discriminator to receive the generated picture, the real picture and the condition vector to obtain a loss value; When the adversarial network is trained, adjusting the weight of the generator network according to the loss value minimization objective function; And after the training is completed, adjusting the weight of the generator network to be optimal, abandoning the discriminator at the moment, and reserving the generator model as the optimal neural network of the generated image. The discriminator structure is designed by using the capsule neural network, the network can effectively avoid the gradient disappearance problem in combination with the advantages of the existing WGAN and CGAN, and meanwhile, the generated sample is high in quality and hascertain advantages compared with an algorithm in the prior art.

The invention provides a method for synthesizing nonspherical hydrogel microparticles. In a first stage, oil-in-water droplets are formed by adopting a T-channel structure; and in a second stage, oil / water / oil double emulsion is formed by adopting a flow focusing structure. Under the irradiation of ultraviolet light, the intermediate phase of the double emulsion is polymerized to form the hydrogel microparticles, and polymerization reaction on an interface of an external phase and the intermediate phase is suppressed, so that hydrogel cannot wrap internal-phase oil cores, and the hydrogel microparticles taking the internal-phase oil cores as templates are formed. The method has the advantages that: the volume velocity ratio of the internal phase to the intermediate phase is controlled to form a series of hydrogel microparticles with similar shapes; the number of internal cores of single double emulsion is controlled to form hydrogel microparticles with different shapes such as meniscal shapes and polypod shapes; additives in a monomer solution are controlled to form hydrogel microparticles with special functions such as fluorescence and magnetism; and compared with microparticles formed by a photoetching method, the microparticles formed by the method have three-dimensional shape structures.

An ion generating apparatus 1 has an electric cleaning mechanism 79 for burning out attachment adhered on an ion generating electrode 7 by electric heating. Adhesion of dirt and the like onto the end portion of the electrode where an electron generation field concentrates will considerably ruin the ion generation efficiency. So that burning out of attachment adhered onto the end portion 7a of the ion generating electrode 7 using the electric cleaning mechanism 79 is extremely effective in terms of avoiding such nonconformity. Object of the cleaning will be attained to a sufficient degree if only the dirt adhered onto the sharpened end portion of the electrode 7, which is responsible for the ion generation, is selectively removed, which is also advantageous in simplifying the apparatus since there is no need to excessively raise the electric heating capacity of the electric cleaning mechanism 79.

The invention provides a method and a device for coaxial combined machining with tubular electrode discharging and laser irradiation, and belongs to the field of non-traditional machining and combined machining. Micro-etching machining is performed on the surface of an insulating high-hardness brittle material by virtue of a coaxial action of cone-shaped tube electrode discharging and laser irradiation, recessive material defects and stress concentration generated by pulsed laser acting on the surface of a workpiece can attract spark discharge to always act on the current area, and meanwhile, the spark discharge changes the surface shape and physico-chemical property of the current area, then nonlinear absorption of the current area on laser energy is improved, a local field enhancement effect is generated, and pulsed laser focused irradiation can accelerate an electrochemical reaction to promote generation of a stable discharge gas film layer on the surface of a hollow tool electrode; and the interactive cooperation of two types of energy achieves fixed-area micro-etching of the insulating high-hardness brittle material, the machining efficiency is significantly improved, and the machining quality is improved.

An external high / low voltage compatible semiconductor memory device includes an internal voltage pad, an internal voltage generation circuit, and an internal voltage control signal generation circuit. The internal voltage pad connects a low external voltage with an internal voltage, and the internal voltage generation circuit generates an internal voltage in response to an internal voltage control signal and a high external voltage. The internal voltage control signal generation circuit generates an internal voltage control signal according to an high or low external voltage. Thus, a database of the semiconductor memory device can be managed without classifying the database into databases for the high voltage and databases for the low voltage because of the internal voltage control signal. In addition, the internal voltage level is stable because charges provided to the internal voltage are regulated according to a voltage level of the external voltage.

The invention discloses a simultaneous desulfation, denitration and mercury removal device, relating to mercury removal devices for flue gases of coal-fired power plants. The device is provided with a simulated flue gas generating unit, a plasma oxidation unit, an activated carbon adsorption unit and a flue gas ingredient detection unit, wherein pipes of the simulated flue gas generating unit, the plasma oxidation unit, the activated carbon adsorption unit and the flue gas ingredient detection unit are connected through rotary valves and Y-shaped three-way joints; the simulated flue gas generating unit is provided with a N2 cylinder, a CO2 cylinder, a SO2 cylinder, an O2 cylinder, a NO2 cylinder, a HCl cylinder, a NO cylinder, a mass flow controller, a Hg0 permeation tube and a thermostatic water bath; a gas washing bottle is arranged in the thermostatic water bath; the plasma oxidation unit is provided with a high-voltage power supply and a plasma reactor; the plasma reactor is provided with a quartz dual-dielectric layer; the activated carbon adsorption unit is provided with a thermostatic baking box and an adsorption reactor; and the detection unit is provided with a flue gas analysis unit and a Hg0 analysis unit.

A high pressure discharge lamp lighting device includes: a DC power supply circuit that is supplied with a DC voltage and performs current control to supply a predetermined constant power to a high pressure discharge lamp; an inverter that converts an output current of the DC power supply circuit into an AC current having a predetermined frequency and supplies a driving current to the high pressure discharge lamp; and a control unit that controls the DC power supply circuit and the inverter. In the high pressure discharge lamp lighting device, the control unit superposes a current pulse asynchronous with the driving current on the driving current.