211results about How to "Reduce radiation effects" patented technology

The invention discloses a harmonic micrometer/nanometre film thermal property test method. The method is characterized in that a minitype metal detector directly deposited on film/substrate sample structures to be tested is utilized for detecting thermal parameters of each layer of the film structure. The film/substrate sample structures are arranged in parallel at the inner cavity bottom of a constant temperature vacuum cavity during test. One end of a thermocouple of a temperature regulation system is inserted in the inner cavity, and the other end is electrically connected with a temperature controller. A TEC heating/cooling device is tightly attached to the inner cavity and arranged in a thermal insulating layer, and is controlled to start or stop by the temperature controller. A vacuum-pumping system is externally connected with the inner cavity. A harmonic measurement unit is electrically connected with the minitype metal detector, and harmonic is utilized for measuring fundamental wave voltage real parts and third harmonic voltage real parts at both ends of a metal band in the middle section of the minitype metal detector in the relevant frequency range. The heat conductivity coefficients and the thermal diffusivity parameters of the substrate surface single/multiple layer micrometer/nanometre film structures are fitted according to the harmonic test principle.

The invention relates to the technical field of antennas, in particular to a millimeter-wave microstrip array antenna. The millimeter-wave microstrip array antenna comprises a dielectric plate, patch array antennas and a feed network, wherein the dielectric plate comprises a double-layer plate body, and a metal ground is clamped between the two layers of the double-layer plate body; the feed network is a one-to-n path of T-type power dividing circuit, each branch port of the feed network is provided with a feed point, the patch array antennas are arranged in n columns, and central symmetry points of the patch array antennas are provided with coaxial feed probes which penetrate the dielectric plate vertically so as to connect the feed points with the patch array antenna; and on the same column of the patch array antennas, the coaxial feed probes are directly connected between relatively proximate microstrip patches on a group of patch units, and are interconnected between relatively proximate microstrip patches on another group of patch units by means of 180-degree phase shifters. The millimeter-wave microstrip array antenna has the advantages of high gain, low sidelobe and miniaturization, and can effectively realize the high integration and miniaturization requirements of the whole antenna structure.

This invention relates to a low radiation self-cleaning complex function glass. This glass has trilamellar membrane structure, membranous layer from glass outward in turns is : SiO2 transition layer, ion adulterated SnO2 layer, ion adulterated SiO2 - TiO2 layer. The on-line preparation method is sol-gel method, combine with atomizing sedimentation, utilize thermal decomposition and coagulation process of collosol at 450 to 550 deg to proceed heat sedimentation, in turns form membranous layer on the on-line glass plate surface. This invention through controlling the coating material concentration, dopant ion variety, thermal decomposition temperature and membranous layer thickness bring low radiation to the glass coated this membrane, execute stable uniwafer low emissivity glass, reduce cost, and realize reprocessing treatment of low radiation steeling and hot bending. This invention applies to common building and shield glass.

The invention provides for a medical apparatus (100, 300, 400) comprising a processor (104). Execution instructions (120, 122, 124, 370, 372, 374, 376, 378, 380, 382, 384, 386) causes the processor to receive (200) a treatment plan (120) descriptive of an ionizing radiation beam treatment of a target zone (340) within a subject (320) using a radiation beam therapy system (301) with a radiation source (354) and a gantry (350). The radiation source is operable for aiming a radiation beam path (358) at a rotational axis (352) of the gantry. The instructions further cause the processor to receive (202) a planning thermal distribution (122) descriptive of ultrasound heating of the subject with a high intensity focused ultrasound system (304) of a heating zone (338) and an ultrasound beam path (332) within the subject. The target zone is within the heating zone. The instructions further cause the processor to generate (204) radiation control command data (124) using the planning thermal distribution and the treatment plan. The radiation control command data is executable to cause the radiation source to reduce irradiation of the target zone when more than a predetermined volume of the radiation beam path intersects the ultrasound beam path.

The invention relates to a wireless charging highway system and a wireless charging automobile. The wireless charging highway system comprises a wireless charging lane (10), and is characterized in that the wireless charging lane (10) is provided with a cable (12) connected to a power grid (11) or a large energy storage system (15) and an underground energy transmitting mechanism; the underground energy transmitting mechanism comprises transmitting coils (13), and the transmitting coils (13) are used for transferring energy. The wireless charging electric automobile comprises an energy pickup mechanism (23), a rectifying and voltage stabilizing module (21), a battery management system BMS (22) and a wireless charging battery pack (24), wherein the energy pickup mechanism (23) comprises a wireless receiving coil (23), the wireless receiving coil (23) is used for receiving induced voltage; the rectifying and voltage stabilizing module (21) is used for performing full-wave rectification, voltage reduction and voltage stabilization processing on the induced voltage, and outputting constant voltage to the battery management system BMS (22); and the wireless charging battery pack (24) is charged through the battery management system BMS (22).

The invention provides a radioactive waste resin shielding transfer method and device. The radioactive waste resin shielding transfer method comprises the resin loading step which comprises inputting the resin to a resin storage tank from a nuclear island plant through a resin conveying pipeline due to the radioactive waste resin shielding transfer device; the resin storage tank water removal step which comprises inputting the water in the resin storage tank to the nuclear island plant through a water removal pipeline; the conveying step which comprises conveying the resin shielding transfer device to factory site waste treatment devices; the resin unloading step which comprises displacing the resin to the factory site waste treatment devices from the resin storage tank by a volumetric water displacement unloading process. The integral process of shielding transfer of the waste resin can be effectively implemented through the radioactive waste resin shielding transfer device and the series of steps and meanwhile the leakage conditions of radioactive substances can be detected in the transfer process.

The invention provides novel energy-saving toughened three-silver-layer low-radiation coated glass, which is characterized in that: a film structure of the glass sequentially consists of the following layers from a glass substrate to the outside: the glass substrate, a first composite dielectric medium layer (11), a first reflection deduction layer (12), a first silver layer (13), a first protective layer (14), a second dielectric medium layer (21), a second reflection deduction layer (22) plus a second silver layer (23), a second protective layer (24), a third dielectric medium layer (31), a third reflection deduction layer (32), a third silver layer (33), a third protective layer (34), a fourth composite dielectric medium layer (35) and a fourth protective layer (36). The novel energy-saving toughened three-silver-layer low-radiation coated glass has the advantages that: an infrared reflection capacity is higher than that of a double-silver-layer low-radiation film with the same visible light transmission value, the radiation rate on the surface of the film layer is low, the shading coefficient is much lower, and the reflection rate is low; and the film has high hardness and high oxidation resistance, and different cold processing and hot treatment can be carried out after the film coating.

The invention discloses a selective absorbing film set of a radiation absorbing layer based on mixture. The mixture is mixed by a superabsorbent material and a transparent material. The absorbing film comprises a metal substrate, and a selective absorbing film of the radiation absorbing layer based on the mixture, an antireflection dielectric film and a protective film which are deposited sequentially on the substrate. According to the selective absorbing film set, performances of the absorbing film can be controlled flexibly by adjusting the parameters of materials of the film set, the thickness of the coating, ingredients of the mixed film, the size, the shape and the like. The premise of maintaining high absorption and low emissivity can be met, and meanwhile, requirements of diversification and individuation of solar thermal products of solar water heaters and solar air conditioners can be met. The selective absorbing film set has the advantages that structure is simple, and the selective absorbing film set is adaptable to various processing and producing and has an important significance to development of the field of solar selective thermal absorbing films.

Provided is a radiotherapeutic agent, including a composite particle, which is obtained by binding a molecule that specifically recognizes a target to a substrate particle including titanium peroxide, and which generates reactive oxygen through irradiation with a radiation. Further, because the radiotherapeutic agent contains the molecule that specifically recognizes a target, the radiotherapeutic agent has a function of accumulating in the target. The radiotherapeutic agent is capable of enhancing effects of radiotherapy, and is capable of reducing side effects on a living body to efficiently attack the target.

The invention provides an antenna control method and terminal equipment. The terminal equipment comprises a first antenna module, a second antenna module, a detection module, a determination module and a control module, wherein the first antenna module is provided with a radiation body, the second antenna module is provided with a radiation body, the detection module is used for detecting a humanbody target part and obtaining a detection result capable of indicating position information of the human body target part, the determination module is used for determining a target antenna module according to the detection result obtained by the detection module, the target antenna module is the antenna module of which the radiation body in the first antenna module and the second antenna module is farther away from the human body target part, and the control module is used for controlling the target antenna module determined by the determination module to be in a working state and the other antenna module except the target antenna module to be in a closed state. Therefore, the radiation influence of the antenna module in the working state on the human body target part can be reduced, anda human body specific absorption rate (SAR) value during the working process of the antenna module is reduced.

The invention discloses a structure for connecting heat insulation oil pipes, which comprises a coupling, an outer pipe factory end, an outer pipe user end, a pipe body inner pipe factory end, a pipe body inner pipe user end and a pipe end inner pipe, wherein the pipe end inner pipe is arranged between the pipe body inner pipe factory end and the pipe body inner pipe user end, and consists of a left pipe end inner pipe and a right pipe end inner pipe; one end of the left pipe end inner pipe is welded to the pipe body inner pipe factory end; one end of the right pipe end inner pipe is welded to the pipe body inner pipe user end; a sealed pipe end heat insulation cavity is formed between the pipe end inner pipe and the pipe body inner pipe factory end, the outer pipe factory end, the coupling, the pipe body inner pipe user end and the outer pipe user end; and a heat insulation sleeve is arranged in the pipe end heat insulation cavity. The pipe end inner pipe can reduce heat conduction, convection, radiation and heat loss at the coupling, improve the sealing performance of the heat insulation oil pipe coupling and prevent the problem that the heat insulation oil pipe coupling is easy to corrode at high temperature.

The invention provides an environment-friendly inorganic soil solidification additive which comprises, by mass, 15-65% of sulfate, 15-65% of halide salt, 11-40% of phosphate, 5-30% of silicate, 0-25% of carbonate, 0-18% of basic oxide and 0-10% of lignosulfonate. The environment-friendly inorganic soil solidification additive is characterized in that all components in soil directly or indirectly undergo soil particle surface chemical modification and modification of substances among soil particles, and generation of colloidal gel materials and generation of various materials of crystal structures are promoted. As time goes, hardened skeletons such as ettringite needle-shaped crystals and apatite crystals appear gradually in solidified soil, soil solidification compressive strength, hydrophobicity, water permeability, stability of heavy metal and other harmful materials and other physical and chemical solidification effects are good, and the environment-friendly inorganic soil solidification additive can adapt to various climates, geographies and soil properties and is high in compatibility and obvious in stabilization and solidification effect on heavy metal and other harmful materials.

The invention discloses a filtering antenna capable of restraining high frequency harmonic waves. The filtering antenna comprises a dielectric plate, a stepped-impedance resonator, a stepped-impedance symmetrical oscillator, a low-pass filter and a feed unit; the stepped-impedance resonator and the stepped-impedance symmetrical oscillator are both arranged on the top layer of the dielectric plate; the stepped-impedance resonator is close to the stepped-impedance symmetrical oscillator to form an antenna unit; an upper conductor of the low-pass filter is arranged on the top layer of the dielectric layer, and is connected with a left arm of the stepped-impedance symmetrical oscillator; a lower conductor of the low-pass filter is arranged on the bottom layer of the dielectric plate and connected with a right arm of the stepped-impedance symmetrical oscillator through a via hole; an upper conductor of the feed unit is arranged on the top layer of the dielectric plate and connected with the upper conductor of the low-pass filter; a lower conductor of the feed unit is arranged on the bottom layer of the dielectric plate and connected with the low conductor of the low-pass filter; and the projection of the upper conductor of the feed unit on the bottom layer of the dielectric layer is positioned in the center of the lower conductor. The filtering antenna capable of restraining high frequency harmonic waves has the characteristics of high rectangle degree and capability of effectively restraining harmful harmonic waves.

A sampling analysis system for measuring the concentration of hydrogen in the containment vessel, comprising: a sampling pipeline, a transmission pipeline, a water vapor analysis sensor, a gas pretreatment unit, a hydrogen analysis sensor, a booster pump, a microprocessor, and a display unit; The gas in the containment is extracted by the sampling pipeline with thermal insulation treatment function, and the gas is processed to normal temperature and pressure by the pretreatment unit after passing through the water vapor analysis sensor, and the hydrogen volume in the pretreated gas is measured by the hydrogen analysis sensor Concentration, the microprocessor determines the current hydrogen volume concentration in the containment according to the measurement results of the sensor and outputs and displays it. It adapts to the use requirements of common gas analysis sensors and eliminates the influence of water vapor on the gas extraction measurement method in the containment by preprocessing the measured gas and combining with the preset algorithm program in the microprocessor. It is especially suitable for accurate measurement of the volume concentration of hydrogen or other explosive gas components in the containment under accident conditions of nuclear power plants.

A mobile telephone based on short-distance wireless communication technique is composed of a host and a hand set, which contain short-distance communication module and power supply for mutual communication. The said host has network communication module and short-distance communication module for mutual transmission of communication data. The said hand set has short-distance communication module and data processing and I/O controller. Its advantages include split structure, low radio radiation and convenient application.

The invention provides a mobile terminal and a method for reducing the electromagnetic wave energy absorption ratio thereof. The method comprises the following steps of: determining to arrange a wave-absorbing material on a flexible printed circuit (FPC) of an LCD (Liquid Crystal Display) in the mobile terminal; and attaching the wave-absorbing material to the FPC to absorb the electromagnetic wave energy radiated by an antenna of the mobile terminal. By using a method of adding the wave-absorbing material at the specific position of the mobile terminal, the invention not only reduces the SAR (Synthetic Aperture Radar) value of the mobile terminal, but also ensures that the TRP (Transmission Reference Point) of the mobile terminal is not reduced. Therefore, the influence of the mobile terminal on the human radiation can be reduced on the premise without influencing the calling quality and the appearance of the mobile terminal; meanwhile, the method is easier to realize.

The invention discloses a PNP transistor structure resistant to total dose irradiation. The PNP transistor structure comprises a p-type substrate and an n-well arranged in the p-type substrate. A second p+ region spaced from the n-well is arranged in the p-type substrate. A first p+ region and an n+ injection region are arranged in the n-well at an interval. An annular polycrystalline silicon gridis arranged outside the first p+ region in a surrounding mode. Compared with a PNP transistor prepared through the conventional CMOS (complementary metal oxide semiconductor) process, the annular polycrystalline silicon grid is adopted to surround the first p+ region, so that the formation of p/n+ junctions caused by the thick-field oxygen in the prior art is completely avoided. The total dose radiation effect is eliminated. As a result, the total dose irradiation resistance of the CMOS band gap reference reaches 300 krad (Si) under the dosage rate of 50 rad(Si)/s.

The invention relates to a dynamic PET parameter imaging method, apparatus, and system and a computer-readable storage medium. The method comprises: first PET data of a subject within a first period of time are obtained and framing image reconstruction is carried out based on the first PET data to obtain a first time activity curve within the first period of time; second PET data of the subject within a second period of time are obtained after a preset time interval and attenuation correction is carried out on a framed reconstructed image of the second PET data based on a CT image of the subject to obtain a second time activity curve within the second period of time; according to the first time activity curve and the second time activity curve, a complete time activity curve of the subjectfrom the starting time of the first period of time to the end time of the second period of time is estimated; and dynamic PET parameter imaging is carried out based on the complete time activity curve. With the method provided by the invention, the radiation impact on the subject and the clinical operation difficulty can be reduced substantially.

The invention discloses a broadband polarization reconfigurable antenna based on a cross dipole and a parasitic unit. The antenna comprises a cross dipole radiation unit, a parasitic radiation unit, achip capacitor, a 3/4 feed square ring, an insulating support column, a coaxial feed line unit, a reflecting plate, a PIN diode switch, a microstrip line feed unit and a dielectric substrate; the cross dipole radiation unit, the parasitic radiation unit, the microstrip line feed unit, the embedded PIN diode switch and the chip capacitor are etched on the dielectric substrate. A basic unit of thecross dipole is a butterfly-shaped unit with two orthogonal arms, and the two arms of the butterfly-shaped unit are connected through the 3/4 feed square ring; slits are formed in the outer sides of the joints of the feed square ring and the arms; and the PIN diode switch is arranged between the microstrip line feed unit and the cross dipole unit. The antenna has the advantages of small size, light weight, simple structure, wide ultra-wideband and the like, and three working modes can be achieved by controlling on-off of the two PIN diode switches.