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73results about How to "Reduce radiant energy" patented technology

Small container fluid dynamics to produce optimized inspection conditions

The generation of a desired non-linear resonance in the toroidal flow of liquid in a cylindrical injectable product is described. The resulting liquid flow pattern generated with an approximately smooth meniscus is down at the walls, across to the center of rotation, up on the center of rotation, across the meniscus to complete the pattern. The controlled flow pattern results in a predictable location for particle of varying mass and hydraulic shape. This predictability of location transforms the problem of particle detection from a chance occurrence to a deterministic task. The deterministic location of particle position is a contributor to the demonstrated capability to measure the size of visible particle range in a range from 33 μm to 1,000 μm with a median deviation of 1% and a maximum deviation from NIST dimensional accuracy of 3%.
Owner:BUDD GERALD WALTER +1

Systems and methods for wireless telecommunications

An antenna having an antenna cup and a helical element mounted in the antenna cup. The antenna cup has a side wall extending from a base thereof towards an open end thereof, the side wall having a plurality of slots formed therein, a first set of the slots being arranged parallel to a longitudinal axis of the helical element and a second set of the slots being arranged perpendicular to the longitudinal axis of the helical element, the first set of slots being arranged to surround an upper portion of the helical element and the second set of slots being arranged to surround a lower portion of the helical element. The slots present a high impedance wall to surface currents and thereby significantly reduce side lobe radiation. Such an antenna is particular useful in antenna co-location applications, such as cellular telephone and Wi-Fi applications.
Owner:PULVER FRED

Active resonance C-type buoyancy pendulum wave energy power generation device

ActiveCN109973288AAchieve resonanceEfficient wave energy captureMachines/enginesEngine controlResonanceInvolute
The invention discloses an active resonance C-type buoyancy pendulum wave energy power generation device which is a cabin-shaped wave energy power generation device completely immersed in water. The active resonance C-type buoyancy pendulum wave energy power generation device comprises an energy harvesting system, a power generation system and a raft type base, wherein the energy harvesting systemcomprises a cabin-shaped pendulum body, an automatic mass center adjusting device is arranged in the pendulum body, the pendulum body is fixedly connected to a main shaft, the main shaft is connectedwith the power generation system, the main shaft is further provided with an encoding disc used for testing the swing of the pendulum body, the two side surfaces of the pendulum body are parallel, awave-sheltering surface is of a structure with a larger arc on the upper portion and a smaller arc on the lower portion, wherein the two arcs are concentric, a spiral line, an involute and a high-order curve are adopted for transition between the two arcs, the distance between the outer normal of the transition curve and the axis of the main shaft is the smallest, the wave-facing surface is a plane or an inward-concave arc surface or a curved surface the same as the wave-sheltering surface, the power generation system comprises a chain, a ratchet wheel, a reversing shaft, a speed increaser anda permanent magnet generator, and the power generation system is internally arranged in a pendulum body cabin or located outside the pendulum body. By adjusting the mass center position of the activeresonance C-type buoyancy pendulum wave energy power generation device, real-time resonance between the pendulum body and the wave is realized, and efficient conversion of wave energy is realized.
Owner:WUHAN UNIV

Method for manufacturing nozzle for circuit breaker

The invention discloses a method for manufacturing a nozzle for a circuit breaker. Inorganic materials such as boron nitride and the like are added based on a pure polytetrafluoroethylene (PTFE) material of the nozzle in the prior art, so the light reflectivity of the nozzle is greatly improved, the ablation caused by electric arc radiation to the nozzle is reduced, serious decomposition and internal explosion due to that the nozzle is subjected to optothermal and electric arc radiation are avoided, and electric arc ablation resistance of the nozzle is greatly improved.
Owner:江苏常新密封材料有限公司

Head gimbal assembly and magnetic disk drive with solder ball connection

Embodiments of the invention provide a head gimbal assembly (HGA) capable of effecting solder ball connection with use of low energy. In one embodiment, the HGA includes a head / slider. In the head / slider, slider pads and lead wire pads are connected to each other by reflow of solder balls under the radiation of a laser beam. Lead layers are connected to a magnetic head and electrode studs are connected to the lead layers, respectively, and are also connected to the slider pads. The diameter R (m) of a solder ball and a sectional area S (m2) of an electrode stud are in a relation of R2≧4S.
Owner:HITACHI GLOBAL STORAGE TECH NETHERLANDS BV

Steam boiler for biomass gas fuel

The invention discloses a steam boiler for biomass gas fuel. The steam boiler comprises a combustor (1), a boiler body (2), a gas duct (3) and an economizer (4), wherein the combustor (1) is arrangedon one end of a furnace wall (21) of the boiler body (2); the boiler body (2) comprises the furnace wall (21) and a steam generator (22); a hearth (211) and a heat exchange chamber (212) which are arranged front and back are arranged in the furnace wall (21), the front end of the hearth (211) is separated from the front end of the heat exchange chamber (212), and the rear end of the hearth (211) communicates with the rear end of the heat exchange chamber (212); the steam generator (22) is arranged in the heat exchange chamber (212) in the furnace wall (21); an ash removing door (213) is arranged on the side wall, close to the heat exchange chamber (212), of the furnace wall (21); and the gas duct (3) is connected with the heat exchange chamber (212) in the furnace wall (21) in a butt jointmode. According to the steam boiler, the heat value is high, the heat efficiency is high, the content of harmful chemical substances in the flue gas is low, the temperature of the emitted flue gas islow, and the effects of energy conservation and environmental protection can be achieved.
Owner:湖南长宏南雁锅炉修理安装有限公司

Fast-drying type ultraviolet curing paint

The invention relates to the field of paint, in particular to fast-drying type ultraviolet curing paint. The fast-drying type ultraviolet curing paint is prepared from components in percentage by weight as follows: 20%-25% of fatty acid modified bisphenol-A epoxy acrylate, 17%-30% of bifunctional aliphatic polyurethane acrylic resin, 35%-45% of active monomers, 0.5%-1% of a photoinitiator, 0.5%-2.5% of a functional agent and the balance of a diluent. The novel photoinitiator is adopted and matched with corresponding resin and monomers, so that the paint has higher gel content, strength and adhesion after photocuring.
Owner:江苏扬瑞新型材料股份有限公司

Dynamic thermal infrared invisible composite material based on dual phase change and preparation method

ActiveCN109181650AGive full play to the temperature control abilityActive and quick responsePretreated surfacesCamouflage devicesSupport matrixNanoparticle coating
The invention discloses a dynamic thermal infrared invisible composite material based on dual phase change and a preparation method and especially relates to a VO2 / mica based phase change heat-accumulation thin layer composite material and a preparation method, and belongs to the technical field of preparation of infrared invisible materials. The VO2 / mica based phase change heat-accumulation thinlayer composite material is composed of a VO2 nanoparticle coating and a mica based phase change heat-accumulation thin layer, wherein the mica based phase change heat-accumulation thin layer is composed of stearic acid and a vanadium-extracted mica matrix according to the mass ratio of (3 to 5) to (5 to 7). The preparation method comprises the following step: preparing VO2 nanoparticles from vanadium-extracted mica by adopting a roasting and acid leaching technology; taking the vanadium-extracted mica as a supporting matrix and embedding to a phase change functional body to prepare the mica based phase change heat-accumulation thin layer; and coating the mica based phase change heat-accumulation thin layer with the VO2 nanoparticles to obtain a dual phase change composite material. The dynamic thermal infrared invisible composite material based on the dual phase change, provided by the invention, can be used for cooperatively strengthening the thermal infrared invisible performance and can be applied to a thermal infrared invisible technology.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Cryopump hybrid frontal array

A cryopump comprises a refrigerator, a condensing array cooled by the refrigerator, a radiation shield surrounding the condensing array and cooled by the refrigerator. The radiation shield has a frontal opening covered by a frontal array that is also cooled by the refrigerator. The frontal array comprises louvers across an otherwise substantially open center region of the frontal opening and an orifice plate across an outer region of the frontal opening. The hybrid frontal array allows for pumping speeds approximating those of a louver frontal array but with flow control comparable to an orifice plate.
Owner:EDWARDS VACUUM LLC

Antenna with grounded U-shaped high-impedance surface metal strips and wireless communication device

The invention discloses an antenna with grounded U-shaped high-impedance surface metal strips and a wireless communication device with the antenna. The antenna is arranged in a housing, and comprises an antenna radiation unit and a grounding plate thereof. A plurality of high-impedance surface units are arranged at intervals on the grounding plate, and each high-impedance surface unit consists ofthree sections of high-impedance surface metal strips which are connected to form a U shape. High-impedance surface through holes are formed on the bottom edges of the U shapes, and are used for connecting the high-impedance surface metal strips among the high-impedance surface units. Due to the adoption of the plurality of U-shaped high-impedance surface units, the antenna and the wireless communication device suppress or prevent surface waves from being propagated along the surface of the antenna on one hand, and perform same-phase reflection on plane waves incident vertically to the surface of the antenna on the other hand; the antenna and the wireless communication device reduce radiation on a head, reduce radiation energy absorbed by the head and reduce a specific absorption rate by utilizing the surface wave suppression characteristics of the high-impedance surface units arranged around the antenna; and simultaneously, the radiation performance of the antenna may not be reduced,the communication quality may not be influenced, and the antenna and the wireless communication device have universality and universal applicability.
Owner:成武县启源国有资产运营有限责任公司

Apparatus and method for interference management in wireless communication system

The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A method for operating a base station in a wireless communication system comprises receiving a information on a time division duplex (TDD) configuration of another base station, determining a TDD configuration of the base station based on the TDD configuration of the another base station and transmission direction of reference signals, and transmitting a downlink signal and receiving an uplink signal according to the TDD configuration of the base station.
Owner:SAMSUNG ELECTRONICS CO LTD

Complex environment fixed point interference signal design method based on frequency diversity array

The invention discloses a complex environment fixed point interference signal design method based on a frequency diversity array, relates to the field of array signal processing, and solves the technical problem of providing a way for reducing the interference of an interference wave beam for surrounding civil-use equipment with a same-direction frequency band. The method utilizes the distance andangle dependency of a frequency diversity array wave beam direction and a target two-dimensional positioning technology to optimize an emission wave beam, an interference signal is sent to an appointed area to guarantee interference accuracy, and meanwhile, power on an avoidance target position is lowered to reduce the influence of the interference wave beam on the surrounding environment. The method comprises the following steps that: initializing a frequency diversity array parameter; establishing an interference signal model; receiving a target echo signal, and determining an interferencetarget position; designing a guidance vector to enable a wave beam main lobe to aim at the interference target; calculating an avoidance target parameter; establishing a frequency offset optimizationmodel; and solving an optimal frequency offset to realize fixed point interference. By use of the method, the wave beam can be flexibly regulated to realize the fixed point interference, and radiationenergy received by each target is lowered to be minimum.
Owner:GUILIN UNIV OF ELECTRONIC TECH
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