97results about How to "Radiation shielding" patented technology

Supplying energy into a hearing apparatus in order to charge its rechargeable battery is to be carried out by way of components, which take up as little space as possible. Components, which are mostly already present, are thus used for the energy supply. Energy is inductively injected into the coil of a receiver, into a data transmission coil or a telephone coil for instance. Alternatively, acoustic energy can also be injected via the receiver or microphone and converted there into electrical energy. Special components need then not be provided for the energy supply process.

A conductive, compliant, deformable boot for a fiber optic or other cable assembly is described, which both provides traditional cable strain relief functions and extends over the body of the connector to form an electrically conductive shield over the cable receptacle aperture when the cable assembly is plugged into the aperture. The boot deforms slightly upon insertion of the cable assembly and compresses against a mating component to form a shield against electrostatic discharge which can accumulate on the cable or card and also to shield against electromagnetic emissions entering or leaving the circuit card package. The boot also shields against emissions when two cable assemblies are mated together by deforming slightly upon mating and then returning to its original state when the assemblies are disconnected.

A method of preparing small wafers for compatibility with conventional large wafer fabrication equipment comprising the following steps: indenting a face of a large wafer to form an array of depressions thereon, each depression sized to matingly accept a lower portion of a small wafer; applying a bonding medium to an exterior side of the depressions on the indented face of the large wafer; matingly fitting the small wafers into the depressions so that the small wafers are positioned in an array on the large wafer; and, removing the top portion of the small wafers standing out of the depressions by chemical mechanical polishing so that the remaining portions of the small wafers then have a uniform thickness generally equal to the depth of the indentations in the large wafer. A preferred aspect of this invention provides for a method as above wherein the small wafer is SiC and the large wafer is made from an amorphous substance which comprises SiC or aluminum nitride.

A wireless personal audio equipment arrangement comprising: a hat, a control circuit including a microwave link receiver carried by the hat, the control circuit outputting signals to speakers, and acoustic chambers conducting sound signals produced by the speakers to earpieces carried by the hat.

A fingerprint imaging system configured to capture an image of a friction ridge pattern of a subject (e.g., a fingerprint, a palm print, a hand print, a footprint, etc.). The system may include one or more components that reduce the impact of ambient light on the performance of the system. In some implementations, the system may reduce the impact of ambient light without requiring additional power (e.g., to generate an increased amount of radiation) and without including “external” hoods and/or covers designed to block ambient light prior to the ambient light entering system. Instead, the system may reduce the impact of ambient light on performance by blocking ambient light internally within the system along an optical path of radiation used to electronically capture an image of the friction ridge pattern.

The invention relates to valve type radioactive source shielding assembly which belongs to nuclear radiation protection and nuclear application technical field. The shielding assembly includes valve body and core. Its structure features are that the valve body is joined to shield by rabbet which can put radiant; the valve core and through-hole are vertically set in the valve body; one end of the valve core is connected with compressing mechanism in the valve body; another end is connected with the thrust mechanism out of the valve body. When radiant is not in working state, the valve core will cover the through-hole to seal the radiant by the compressing mechanism. When it is in working state, the valve core will be over against the through-hole to open the radiant by thrust mechanism. The advantages of the invention are that it has simple structure, small size; it can realize standardization and parameterization of the shielding assembly, uses standard exterior structure to satisfy multiple source integration.

A device and method for cooling an animal, operating to reduce heat absorption by reflecting sunshine and heat away from the animal, reducing insulation uptake, and shielding the animal from ultraviolet rays and other radiation, while providing adequate ventilation to support evaporative and/or radiant cooling. An external fabric layer of woven plastic or synthetic stranded material with a metallic coating that provides high reflectivity for a wide bandwidth of radiation is combined with an interior fabric layer capable of rapid evaporation of liquids, which may be moistened artificially or may absorb perspiration for transpiration and cooling effects.

The present invention relates to a hard X-ray photoelectron spectroscopy (HAXPES) system comprising an X-ray source providing a beam of photons which is directed through the system so as to excite electrons from an illuminated sample. An X-ray tube is connected to a monochromator vacuum chamber in which a crystal is configured to monochromatize and focus the beam onto an illuminated sample. A hemispherical electron energy analyser is mounted onto the analysis chamber. An air gap is provided between the X-ray tube and the monochromator chamber, which air gap is provided with a first radiation trap to shield the ambient air from the radiation when the air gap is illuminated with X-rays from the source.

The invention discloses an antenna capable of switching wave beam directions. The butterfly-shaped antenna is formed by an orthohexagonal bottom face and six rectangular side faces which are provided with radiators in a printing mode and form certain included angles with the bottom face. Six blocking capacitors are connected on the periphery of a feeding point in an equal angle mode. Each blocking capacitor is respectively and sequentially outward connected with a PIN diode, a metal feeder and a quari-yagi antenna. A high impedance metal wire is educed from a conode of each blocking capacitor and the corresponding PIN diode. Metal wires educed from two adjacent conodes are connected with the same inductor, and the other end of the inductor is connected to a metal pasted floor through a metalized through hole of a medium substrate. An inductor is educed from the side face of each metal feeder, and the other end of the inductor is connected with a voltage reducing resistor. A 5V direct current control signal source controls on-off of the PIN diodes to realize switching of six wave beam states, so that the purposes that antenna radiation covers the whole upper half space, working bandwidth is increased, and radiation to lower half space is shielded are achieved.

The invention discloses a method for recycling red mud to pulp the red mud. The method is characterized in that a reducing agent is added into the red mud, iron-containing particles in the red mud are reduced into magnetite particles, and then the magnetite particles are subjected to magnetic separation to obtain an iron-containing product A; and then the red mud subjected to the magnetic separation is used to prepare a baked brick product B. The applicant summarizes a set of method for preparing the baked brick, wherein a brick body prepared by the red mud is put into a mixed liquor of sodium silicate solution and barium sulfate, and then is blown to be dry by carbon dioxide, then a layer of barium sulfate protection film is covered on the surface of the brick body to shield the radioactivity. According to the method for recycling the red mud, the construction wastes being waste materials are added as aggregate, so that the strength of the brick body is improved, the fusion points of refractory materials can be reduced by adding a little fluoride salt, and various construction wastes and the red mud can be sintered together at a lower temperature.

The invention relates to a carrier (1) for holding an electronic device, in particular an antenna amplifier of a vehicle, having at least one printed circuit board (9), the electronic device being able to be attached to a vehicle component, in particular a vehicle window (12), by means of the carrier (1) which is composed of an electrically nonconductive material, there being provision according to the invention for the carrier (1) to be embodied in a planar fashion and to have latching means as well as spring means which interact therewith and have the purpose of securing the printed circuit board (9) to the carrier (1), as well as at least one recess for holding a contact element in order to make electrical contact with a contact face of the printed circuit board (9) by means of a corresponding contact face (13) on the vehicle component.

The invention relates to the field of clinker cooling, in particular to a cable of a cooling cement clinker grate cooler and a cold-proof and wear-resistant cable of a grate cooler. The cold-proof and wear-resistant cable of the grate cooler comprises two copper alloy wire cores, an insulation layer, an outermost wear-resistant layer, a cold-proof shielding layer, a fireproof layer, a winding layer, a filling layer and a central isolation layer, wherein the outermost wear-resistant layer comprises polyvinylchloride resin, 2,4-dihydroxy benzophenone, carbon black, a stabilizer, an anti-oxygen agent and a plasticizer, and the cold-proof shielding layer comprises a PET resin layer and ITO nanoparticles dispersed in the PET resin layer. By the cold-proof and wear-resistant cable, the weather resistance, the aging resistance and the wear resistance can be improved, the cold-proof and wear-resistant cable has a heat absorption and cold resistant effect, the effect of shielding electron radiation is simultaneously developed, the cable manufacturing cost can be further reduced, the cable production and preparation time is greatly reduced, favorable adhesivity among layers is ensured, and the dead weight of the cable also can be reduced.

The invention relates to a pregnant woman anti-radiation and anti-static garment good in flexibility. The pregnant woman anti-radiation and anti-static garment good in flexibility comprises a garment body (1), the front part of the garment body (1) is of a double-layer structure, an interlayer (2) is arranged on the inner side of the garment body (1) and internally provided with a metal fiber fine silk net (3), the garment body is made of shell fabric, the shell fabric is formed by interweaving warp yarns and weft yarns, the warp yarns are nylon yarns with fineness below 30D, the weft yarns comprise nylon yarns with fineness below 30D and carbon conductive fibers with fineness below 30D, the carbon conductive fibers are composed of nylon core yarns and carbon nylon composite conductive layers wrapping the peripheries of the nylon core yarns, the warp density of the shell fabric is 110 yarn/cm, and the weft density is 90 yarn/cm. The pregnant woman anti-radiation and anti-static garment good in flexibility can reflect electromagnetic waves to achieve the functions of effectively shielding radiation and ensuring good health of pregnant women and fetuses, and is good in anti-static performance and flexibility.

A device for administering brachytherapy to a patient includes a vessel that may be in the form of a hollow cylindrical cup, for fleshing into and substantially filling the open-ended cavity. The vessel has a closed outer end, which may be a removable cover, and a source guide penetrates the closed outer end so as to extend deep into the vessel, to receive a radiation source in the source guide. A manipulator can be connected to the radiation source, and also to the source guide, for allowing several different types of manipulation of the source orientation and position within the vessel during the brachytherapy procedure.

The invention discloses a radiation-proof computer display comprising a liquid crystal display screen and a base. A transparent radiation-proof layer is arranged on the outer surface of the liquid crystal display screen, a transparent layer is arranged on the outer surface of the transparent radiation-proof layer, a wave-absorbing layer is arranged on the back face of the liquid crystal display screen, and a protective layer is arranged on the outer surface of the wave-absorbing layer. The radiation-proof computer display is simple in structure, unique in function and convenient to use; radiation, including electromagnetic radiation and electrostatic radiation of the whole display can be shielded effectively, human health is protected effectively, and attractiveness of the computer display can be improved.

The invention belongs to the technical field of living goods and particularly relates to a health-care mattress capable of promoting the microcirculation of the human body. The mattress comprises an outer mattress cover and a multi-layer mattress body, wherein a simulation geomagnetism generating device, a temperature sensor, a silica gel heating wire, an aluminum foil layer and a red copper net layer are arranged in the multi-layer mattress body. In the invention, the simulation geomagnetic field generating device is formed by a permanent magnetic sheet, a nonmagnetic health-care functional sheet and a rubber magnetic plate, the penetrating force of the generated magnetic field generated by the simulation geomagnetic field generating device is improved by adopting a certain arrangement mode, the strength of the magnetic field is similar to that of the original natural magnetic field of the earth, and thus the microcirculation system of the human body can be promoted effectively. In addition, with the heating action of the silica gel heating wire, the mattress can keep the user warm without arousing fire. The added aluminum foil layer and red copper net layer can effectively shield radiation of electromagnetic waves caused by electrical heating, so the mattress is safe and healthy. The effective parts of the mattress supplement each other to produce obvious treatment and health-care effects, and the mattress is safe and free from side effects.

The invention relates to a preparation method of an anti-aging uvioresistant shading net, and belongs to the technical field of polymer material preparation. The method comprises the steps that cottonand water are mixed, then, the mixture is mixed with cotton stalk, citric acid and the like for performing microbial fermentation, then, a fermentation product is subjected to microwave treatment, grinding and screening are performed to obtain a screened product, finally, the screened product, polyethylene and other auxiliaries are mixed and extruded, and spinning drying is performed to obtain the anti-aging uvioresistant shading net. The cotton is hydrolyzed, a large number of hydroxyls, carboxyls, carbonyls and other epoxy groups are generated on the surface of fiber, cotton fiber is stuckto other molecules in the shading net, other molecules in the shading net are wrapped, the organic functional groups are used for improving the bonding strength, the shading net is difficultly peeledoff, zinc ions are complexed to the cotton fiber, zinc oxide grows on the cotton fiber molecules through nanoscale particles, the uvioresistant capability of the shading net is enhanced, and the goodapplication prospect is achieved.