111results about How to "Reduce Radiation Hazards" patented technology

The invention discloses a red mud baking-free brick and a preparation method thereof. The red mud baking-free brick mainly comprises the following components by weight portion: 5 to 30 portions of red mud, 20 to 30 portions of coal ash, 20 to 50 portions of quartz sand or crushed stone powder, 5 to 15 portions of lime, 2 to 8 portions of gypsum, and 0 to 3 portions of cement. Each property of the red mud baking-free brick accords with requirement, the compressive strength and the breaking strength of the red mud baking-free brick reach superior grades of the national standard, and other performance indexes accord with the requirements; and radioactive elements in the red mud are subjected to powerful attenuation and shielding in particular, so as to remarkably reduce radiological hazard in the brick. Moreover, a certain amount of magnesium sulphate is added into the red mud baking-free brick, so as to effectively neutralize large amount of free alkali in the red mud, and eliminate brick surface scumming phenomenon caused by the large amount of the free alkali in the red mud.

An embodiment of the invention provides a mobile terminal and an antenna switching method and device thereof and relates to the technical field of communication. By the aid of the antenna switching method and device, radiation hazards to humans when a first antenna at the top of the mobile terminal receives and transmits low-frequency signals are reduced, interference to the humans from the first antenna is reduced, and influence on communication quality from the interference is alleviated. The antenna switching method includes detecting whether transceiving signals of the first radio frequency front end are low-frequency signals or not when in voice communication through the first radio frequency front end and a receiver, and when the transceiving signals of the first radio frequency front end are low-frequency signals, switching the antenna providing the transceiving signals for the first radio frequency front end as a second antenna which is the antenna at the bottom of the mobile terminal. The antenna switching method and device in the embodiment is used for antenna switching of the mobile terminal.

The invention discloses a photovoltaic intelligent road facilitating continuous charging of an electric automobile in running. The photovoltaic intelligent road is of a four-layer structure from top to bottom, a photovoltaic cell array, a positioner, a detector and a power transmitting module are arranged in a second layer, the photovoltaic cell array and the power transmitting module are alternately connected in series at intervals or connected with each other, and a current collection device and monitoring system, a storage battery, a controller and an inverter are arranged in a third layer.When the electric automobile passes the photovoltaic intelligent road, a receiving circuit generates oscillating current when inherent frequency of a receiving coil of the electric automobile is as same as electromagnetic field frequency, so that magnetic field is converted into electric energy, and a storage battery in a driving electric automobile is charged. The photovoltaic intelligent road can sufficiently utilize solar energy, is safe in charging process and high in charging efficiency and solves the problems of universal long charging time and short diving distance of an electric automobile, the charging efficiency of the electric automobile is remarkably improved, and the driving distance of the electric automobile is prolonged.

The invention discloses a double-LaBr3 crystal detector element energy spectrum logger based on a controllable neutron source. The double-LaBr3 crystal detector element energy spectrum logger comprises a cylindrical shell, wherein the cylindrical shell is internally provided with a LaBr3 detector I and a LaBr3 detector II from top to bottom, the controllable neutron source is connected with a photomultiplier at the top part of the LaBr3 detector I, a chromium foil is arranged between the LaBr3 detector I and the LaBr3 detector II, and the photomultiplier, the LaBr3 detector I, the chromium foil and the LaBr3 detector II are arranged in a boron sleeve body which is positioned in the cylindrical shell; a tungsten shielding body is arranged between the controllable neutron source and the boron sleeve body, and the controllable neutron source is connected with a neutron detector through a neutron acceleration part. According to the double-LaBr3 crystal detector element energy spectrum logger based on the controllable neutron source, disclosed by the invention, by utilizing the controllable neutron source and the double LaBr3 detectors with high resolution, the content measuring accuracy of elements such as C and Mg and the longitudinal resolution can be increased, the measurement information can be increased, and the purpose of simultaneously determining parameters of stratum element content, mineral content, porosity degree and the like can be realized; the double-LaBr3 crystal detector element energy spectrum logger has the characteristics that the environmental hazard is reduced, effective stratum information is enriched, and the like.

The invention discloses a method and device and equipment for generating a CT image. The method includes the steps that a first X ray film and a second X ray film which are X ray films adopting two orthogonal visual angles for collecting a target object; the device for generating the CT image is called to conduct three-dimensional reconstruction on the first X ray film and the second X ray film, so that a three-dimensional model of the target object is obtained; according to the three-dimensional model of the target object, the CT image of the target object is obtained. According to the methodand device and equipment for generating the CT image, the two orthogonal X ray films are input into the device for generating the CT image to reconstruct the CT image of the target object, only through an X ray film machine, the medical image which is equivalent to or approximately equivalent to that of CT scanning equipment, in this way, radiation hazards to the target object are reduced, the cost for inspection can be further saved, and the time consumed for the inspection process can be shortened.

The invention relates to a mobile phone interactive management device and a method on the basis of bluetooth. The mobile phone interactive management device on the basis of the bluetooth is characterized by comprising a power supply module, a display module, an information storage module, an audio input module, an audio output module, a bluetooth module and a central processing module. The power supply module is respectively connected with the display module, the information storage module, the audio input module, the audio output module, the bluetooth module and the central processing module. The central processing module is respectively connected with the display module, the information storage module and the bluetooth module. Matching connection communication with multiple bluetooth mobile phones is established simultaneously by the device so that interactive management of incoming call information of multiple called bluetooth mobile phones is realized, a practical requirement that multiple incoming calls are conveniently answered in travel and work is met, radiation harm in utilizing the mobile phones to directly answer the calls is reduced and thus physical health of people is protected.

A mobile terminal and a method for reducing a specific absorption rate are disclosed. The mobile terminal includes: a control unit is connected to an input unit, a memory and a switch, an antenna group containing multiple antennas, and the switch connected to each antenna and the radio-frequency circuit; wherein the input unit is configured to: detect a location of the mobile terminal relative to a user, and notify the control unit of the location; the memory is configured to: store location-specific absorption rate corresponding information of each antenna; and the control unit is configured to: according to the location, search the location-specific absorption rate corresponding information for a specific absorption rate of each antenna at the location obtained, select an antenna according to the specific absorption rate of each antenna at the location and control the switch to connect the selected antenna with the radio-frequency circuit.

The invention provides a treatment device for tritium gas and tritiated water, which integrates catalytic oxidation of the tritium gas with collection of tritiated water together, and can be used as a tritium sampler. The device comprises a tritium gas catalytic oxidation working room and a refrigeration system, wherein to-be-treated exhaust gas containing tritium firstly flows through the tritium gas catalytic oxidation working room; under the action of a catalyst, the tritium gas is subjected to catalytic oxidation to generate tritiated water vapor; the tritiated water vapor enters into a convection chamber of the refrigeration system and is quickly condensed to generate liquid tritiated water; the liquid tritiated water is collected by a collector. The treatment device for tritium gas and tritiated water, disclosed by the invention, can be directly connected to a tritium gas circulating front end of a purification system for treatment of the to-be-treated exhaust gas containing tritium, and also can be connected to a tritium circulating middle part of a nuclear facility, in order to monitor tritium in the nuclear facility environment in real time by catalyzing, condensing and collecting tritium in the atmosphere; meanwhile, the device is further applicable to emergency treatment for high radioactive tritium gas and tritiated water in the nuclear accident field.

The invention discloses a minimally invasive vascular interventional surgery catheter robot system control device and method, and belongs to the technical field of robot control. The device comprises a main hand control device, a first controller, a first motor, a catheter clamping device, a second controller, a second motor, a first photoelectric encoder and a second photoelectric encoder, wherein the first controller comprises a first fuzzy controller and a first PID controller, and the second controller comprises a second fuzzy controller and a second PID controller. According to the minimally invasive vascular interventional surgery catheter robot system control device and method, tracking performance of a system auxiliary hand for a system main hand is improved, overshoot of the system is reduced, the robustness of the system is ensured, and therefore safety of a minimally invasive vascular interventional surgery catheter robot is further improved in the interventional surgery process. The minimally invasive vascular interventional surgery catheter robot system control device and method have great significance in reducing radiation harm to doctors in the surgery process, improving accuracy of the interventional surgery, and ensuring mental and physical health of patients.

The invention discloses a bean curd with radiation protection and health care functions, which is characterized by comprising the following raw materials in parts by weight: 65-80 parts of soybean, 8-14 parts of medlar, 8-12 parts of chrysanthemum, 5-15 parts of tea leaves, 4-9 parts of pine pollen, 5-9 parts of edible jelling agent, 2-5 parts of flavoring and 3-7 parts of spirulina powder. The product of the invention has fresh and tender taste, comfortable fragrance, rich nutrition and unique flavor, and can enhance the working capability of human immunocytes, prevent and restore organism injuries caused by radiation, relieve eyestrain, protect eyes, lower blood sugar, blood pressure and blood fat, treat syndromes, such as headache, insomnia, fatigue, amnesia and the like, boost the memory and improve the working efficiency.

The invention provides an operation mechanical arm positioning system. The system comprises an operation mechanical arm, a fluoroscopy device, a processing device, a space three-dimensional positioning device and a control device, wherein an A group of calibration bodies are fixed relative to the operation mechanism arm; a B group of calibration bodies are fixed relative to the fluoroscopy device,and a target object is shot from at least two angles to form at least two fluoroscopy images; the processing device receives the fluoroscopy images, target projection points are selected in the images respectively according to an external input instruction, according to the position relation between the target projection points and a light source and the position relation between at least image receiving planes of the target projection points, the space position of a target actual point relative to the B group of calibration bodies is determined, and space position data of the actual point isgenerated; the space three-dimensional positioning device forms the three-dimensional relative position relation of the A group of calibration bodies and the B group of calibration bodies; the control device controls the operation mechanical arm to move to the space position of the target actual point according to the three-dimensional relative position relation and the space position of the actual point. The operation mechanical arm positioning system improves the positioning automation degree, reduces the operation complexity, and is accurate in positioning.

The invention provides an insulating coating for electrical equipment and a preparation method of the insulating coating. The insulating coating is prepared from the following components: organic resin, an acrylate emulsion, calcium carbonate, silicon nitride, titanium dioxide, hollow glass microbeads, sepiolite, acetone, glycol, a phosphate modified acrylic leveling agent, a dispersant, a curingagent, a titanate coupling agent and water. The preparation method provided by the invention is simple and practicable, the preparation process is non-polluting, the prepared insulating coating has good adhesion and corrosion resistance, also has good flame retardancy and insulativity, and is environmentally-friendly, the safety is improved, and the service life of electrical equipment is prolonged.

The invention discloses a body surface marking method and device with real-time image guidance. The method comprises the steps of allowing an image processing unit to acquire a marking region medicalimage, determining a marking point, and acquiring positional information of the marking point, positional information of a positioning point and body surface outline information; allowing a photographic unit to acquire a marking region real-time image, and acquiring positional information of the positioning point in the real-time image; acquiring the position of the marking point in the real-timeimage according to the position of the positioning point in the medical image and its position in the real-time image; allowing a camera to continuously acquire a real-time image, adding information of the marking point through the image processing unit, transmitting the information to a display unit, and operating a marker to move so that marking is finished. The real-time image is used to trackthe marking of the marker, and the marker can be guided to move to the marking point just by acquiring the medical image of a marking region once. The existing manner of manually adjusting the position of a developed object and repeatedly acquiring medical images is replaced, patients and doctors take radiation fewer times, equipment is used less frequently, and less radiation injury is caused.

The invention relates to a black instant health care tea using panax notoginseng as a main ingredient. The black instant health care tea is prepared from the following components in percentage by weight: grain ingredients: 5% to 10% of blood rice, 5% to 10% of black glutinous rice, 5% to 10% of black corn, 5% to 10% of black quinoa, 5% to 10% of black buckwheat, 5% to 10% of black barley; bean ingredients: 5% to 10% of black beans; nut fruit ingredients: 1% to 5% of black sesame and 1% to 5% of black pumpkin seeds; functional ingredients: 20% to 40% of panax notoginseng powder; and other ingredients: 1% to 5% of black medlar, 1% to 5% of black jujube flesh and 1% to 5% of mycose. According to the black instant health care tea using panax notoginseng as the main ingredient disclosed by the invention, the panax notoginseng is used as the main ingredient, the black instant health care tea is scientific in matching, balanced in nutrients, good in taste and refreshing, and the effects of nourishing heart, replenishing blood and resisting oxidation are definite. Through the instant grain tea in the technical scheme, nutrient substances needing to be emergently supplemented at four o'clock can be supplied, the effects of nourishing heart, replenishing blood, resisting oxidation, removing free radicals and resisting radiation can also be generated simultaneously, and a relatively convenient and comprehensive better choice is provided for people in offices.

The invention relates to a method for manufacturing a high-frequency high-voltage diode by using a gas phase doping area fused silicon chip. The method manufactures the high-frequency high-voltage diode by adopting the gas phase doping area fused silicon chip instead of a neutron irradiation area fused silicon single crystal (NTD) so as to reduce the demand of the neutron irradiation area fused silicon single crystal and reduce the neutron irradiation hazards and pollution; and the frequency and the property of the manufactured high-frequency high-voltage diode are consistent, the forward andreverse parameters are equal to those of an NTD chip, the production cost is greatly reduced, the situation that the NTD chip resource is seriously insufficient is relieved, and the performance of a product is excellent and stable.

The invention discloses a beneficiation method for recovering uranium from rare earth ore. The beneficiation method comprises the steps that uranium-containing rare earth ore is finely crushed and then classified, and coarse-fraction ore and fine-fraction ore are pre-enriched through a dense medium cyclone and a high-intensity magnetic separator correspondingly; after the mixed rough concentrate is reground, rare earth minerals are firstly subjected to flotation, uranium minerals are then subjected to flotation, and after flotation uranium concentrate is reground, the uranium grade is further improved through weak magnetic iron removal; and after scavenging tailings in the flotation process are reground, uranium ore is further separated and enriched through reselection, the uranium concentrate subjected to reselection is subjected to strong magnetic separation, the uranium grade is improved, the yield of the finally obtained uranium concentrate is 5.50%, the uranium grade is 0.27%, and the recovery rate is 71.44%. According to the beneficiation method for recovering the uranium from rare earth ore, precious uranium resources can be efficiently recovered while rare earth ore recovery is not affected, and the radioactive hazard to the environment is reduced.

The invention relates to an environmentally friendly graphite gypsum board and a preparation method of the environmentally friendly graphite gypsum board, and solves the technical problems in the prior art that the thermal insulation property of the gypsum board is poor and the compressive strength and the bending strength are both relatively poor. The invention provides the environmentally friendly graphite gypsum board. The environmentally friendly graphite gypsum board is prepared from the following material components by weight: 30-60 parts of gypsum powder, 60-120 parts of calcium carbonate powder, 12-30 parts of titanium dioxide, 4-6 parts of pulverized fuel ash, 20-30 parts of expanded graphite, 4-16 parts of fiberglass, 4-16 parts of short carbon fiber, 14-16 parts of polyvinyl alcohol, 11-15 parts of sodium carboxymethylcellulose, and 90-180 parts of water; meanwhile, the invention further provides the preparation method of the environmentally friendly graphite gypsum board. The environmentally friendly graphite gypsum board is widely applied in the fields of building materials.

The invention relates to a proximity sensor state detection method, a proximity sensor state detection device, a terminal and a non-temporary computer readable storage medium. The proximity sensor state detection method is applied to the terminal, the terminal comprises a proximity sensor and an antenna, and the method comprises the following steps: sending a preset instruction to the proximity sensor; based on a feedback result of the proximity sensor to the preset instruction, judging whether the proximity sensor is abnormal or not; and if the proximity sensor is abnormal, maintaining the transmitting power of the antenna at low power. Whether the proximity sensor can work normally or not is judged according to the feedback condition of the proximity sensor for obtaining the capacitancevalue request, the transmitting power of the antenna is reduced under the condition that the proximity sensor cannot work normally, the situation that the transmitting power of the antenna is continuously high due to the fact that the proximity sensor cannot work normally is avoided, and radiation to a human body is reduced.

The invention belongs to the radioactive source making technology field and discloses a device used for making a large-area radioactive source. The device mainly comprises a lifting platform vehicle, a leveling table, a plating bath, a plating sheet, a plating liquid protection frame, a power source, a plating pen, a plating pen support and a two-dimensional translation device, wherein the bottom portion of the lifting platform vehicle is provided with rollers, the vehicle body is provided with a rectangular lifting board, the leveling table is arranged above the lifting board, the bottom portion of the leveling table is provided with adjusting pins capable of realizing micro height adjustment, the plating bath is a rectangular one with an opening at the upper portion and is arranged above the leveling table, the dimension of the plating bath is not smaller than the dimension of the plating sheet, the plating sheet is a cathode and is in the plating bath, the plating sheet is connected with a negative electrode of the power source through a cathode connection wire, periphery of the plating sheet is provided with the plating liquid protection frame, the plating pen is taken as an anode, the material of the plating pen is graphite, the plating pen is arranged below the plating pen support, and the plating pen is connected with a positive electrode of the power source through an anode connection wire. The device has advantages of good uniformity, high electro-deposition efficiency, easy operation, relatively low cost and large active region area.

The invention discloses a method for improving the detection accuracy of an unmanned aerial vehicle. The method is specifically implemented according to the following steps of: 1, determining a detection range, determining a frequency spectrum target surface, and numbering the frequency spectrum target surface; 2, determining the movement direction of the frequency spectrum target surface according to the position change of the frequency spectrum target surface with the same number in the next T second and the previous T second; 3, scanning through a radar, preprocessing target data scanned bythe radar, and dividing target threat levels in combination with the frequency spectrum target surface motion direction obtained in the step 2; 4, screening out corresponding grade targets in a frequency spectrum target plane and reserving the corresponding grade targets as to-be-selected targets of the platform alarm information; and 5, warning and displaying the to-be-selected target track information within T seconds or the spectrum information within T seconds screened in the step 4 through a system. According to the method, the problem that a single frequency spectrum cannot detect accurate longitude, latitude, elevation, flight path and other information of the unmanned aerial vehicle is solved.