221 results about "Radiation hazard" patented technology

The invention discloses a method, a control device and a wireless terminal for reducing the radiation hazard of the wireless terminal, belonging to the field of wireless radiation protection, wherein the method for reducing the radiation hazard of the wireless terminal comprises the following steps: using the control device to detect whether an antenna of the wireless terminal is approached by an object or not; and using the control device to adjust the output power of a wireless terminal transmitter connected with the antenna to the output protection power and reduce the specific absorption rate value of the antenna to the set value if the antenna is detected to be approached by the object. The embodiment of the invention can reduce the radiation of the wireless terminal to a human body. The technical scheme is applicable to wireless communication terminals.

The invention discloses a catheter robot system for a minimally invasive interventional operation in a blood vessel, relating to a robot system for assisting the minimally invasive interventional operation in the blood vessel, which aims to lower the radiation hazard to patients and doctors on site, realize compartmental interventional operation at different sites and feed back the conveying force of a catheter. A main hand handle and a computer mainframe are arranged in a control room; a control cabinet, a catheter handle, master and slave intervention devices, a magnetic field generator and a controllable catheter are arranged in an operation room; a pose signal of the main hand handle is delivered to the control cabinet after processed by the computer mainframe; the control cabinet is internally provided with a motion control card and a driver; the motion control card receives a command to send an instruction to the driver; the driver delivers a control signal to the motors of the master and slave intervention devices, thereby controlling the intervention devices to realize the pushing / pulling, rotation and bending operations of the controllable catheter; a pose sensor acquires pose information on a controllable bent section, and the pose signal is delivered by the motion control card to the computer mainframe for signal processing. The invention is used for the minimally invasive interventional operation in the blood vessel.

A multi-antenna garment comprising a first and second antenna incorporated into an electrically nonconductive garment, with tubular composites to improve gain and mitigate radiation hazard. The first antenna includes first and second RF elements attached to a first garment so that a gap exists between them, where the RF elements each form a band when the garment is worn by a wearer. The second antenna includes third, fourth, fifth, and sixth RF elements attached to a second garment worn over the first garment. RF feeds are electrically connected to the first, third, and fifth RF elements. Ground feeds are electrically connected to the second, fourth, and sixth RF elements. Insulating material disposed over gaps between the first and second, the third and fourth, and the fifth and sixth RF elements and in pockets in the regions of the RF feeds limits the wearer's exposure to electromagnetic field to acceptable levels.

The invention discloses a linear frequency modulation-based multi-human body safety inspection apparatus. The linear frequency modulation-based multi-human body safety inspection apparatus includes a scanning device, millimeter wave transmitting-receiving assemblies and an image processing unit; the scanning device comprises a plurality of detection seats and a plurality of guide rails arranged on the detection seats, and a motor; each guide rail is provided with one set of millimeter wave transmitting-receiving assembly; the millimeter wave transmitting-receiving assemblies are driven by the motor so as to move relative to people to be inspected; the millimeter wave transmitting-receiving assemblies are used for transmitting millimeter wave signals to the people to be inspected and receiving millimeter wave signals reflected by the people to be inspected; and the image processing unit is used for performing holographic three-dimensional imaging on the bodies of the people to be inspected so as to obtain three-dimensional image of the bodies. The invention also discloses a linear frequency modulation-based multi-human body safety inspection method. The linear frequency modulation-based multi-human body safety inspection apparatus of the invention has the advantages of low price, simple structure, easiness in integration and high resolution, and can detect a large number of peoples in per unit time and causes no radiation hazards to human bodies.

The embodiment of the invention discloses a wireless headphone and an audio playing method thereof. A master headphone receives audio data transmitted by audio equipment through a wireless communication module and then sends the encoded audio data to a slave headphone through NFMI, so that the audio data are simultaneously played by the master headphone and the slave headphone, and the technical problems of high technical difficulty, probable radiation hazards to a human body and high transmission power consumption, which are caused by application of RF as the Bluetooth headphone, are solved. The audio playing method of the embodiment comprises the master headphone, the slave headphone and a wireless communication module arranged in the master headphone, wherein the master headphone is connected with the audio equipment through the wireless communication module and connected with the slave headphone through NFMI.

In order to solve the drawbacks in the prior art, a new technology scheme is provided in the present invention, in which relay stations are introduced to participate in the communication of multiple carriers. The relay station only relays the carriers with had wireless transmission characteristic and controls the transmission of those relayed carrier via a carrier which does not need to be relayed. The relayed carrier is generally a high frequency carrier and the carrier which does not need to be relayed is a low frequency carrier. The base station or the relay station determines a carrier which needs to be relayed for the relay station according to the channel conditions of each carrier. The technology scheme provided by the present invention divides a NLOS (Non-Line-Of-Sight) transmission into at least two LOS transmissions. Therefore, it is easy to extend high frequency carrier to cell edge etc. Meanwhile the mobile terminal does not need extra transmission power to transmit high frequency carrier, so that the fast consumption of the terminal battery power is avoided and the great radiation hazard to the human body is also avoided. The service data and the signaling etc. which has not been relayed will still propagate in the low frequency carrier, so that the time delay resulted from the relay is avoided.

A source of low energy neutrons based on a combination of unique technology has resulted in a man-portable package suitable for field use. This source of low energy neutrons produces a forward directed beam to permit local control and it is electrically activated so there is no radiation hazard when it is turned off for transport and relocation.

The invention discloses an anti-radiation functional drink prepared by taking blueberry juice with a health function as a raw material, taking indigo juice, seabuckthorn juice and black fungus extract as auxiliary materials and reasonably mixing according to a certain proportion. Particularly, the indigo juice, the indigo juice, the seabuckthorn juice and the black fungus extract are rich in active ingredients such as anthocyanin, vitamin, agaric polysaccharide and the like, so that radiation hazard can be well decreased and reduced and efficacies of enhancing the human body immune function, resisting aging, resisting virus, resisting cancer, improving liver detoxication and the like are provided and the drink is pleasant in mouthfeel and convenient for eating. The drink disclosed by the invention adopts natural wild plants as the raw material; no any antiseptic is added in the preparation process; a vacuum deoxidation technology is adopted in the preparation process to prevent corrosion and retain freshness for the product; and the product is a novel product of blueberry fruits through deep processing, advanced in process and good in quality, has no any toxic or side effect and is suitable for everyone to drink.

The invention provides application of a Saussurea involucrata culture which is obtained by a cell culture technology and used as a raw material to preparation foods and anti-inflammatory analgesic medicines. The Saussurea involucrata culture and a reprocessing product thereof which is prepared by extraction or other processing methods can be used for preparing medicaments for treating or improving arthritis and various clinical symptoms caused by the disease, preparing foods and food additives for strengthening immunity, resisting oxidization, alleviating physical fatigue and having the auxiliary protecting function on radiation hazard and preparing dairy products, wine, beverage, jam, candy and baked foods.

The invention discloses a method for making two sided Multi-Chip Modules (MCMs) that will allow most commercially available integrated circuits to meet the thermal and radiation hazards of the spacecraft environment using integrated package shielding technology. The invention describes the technology and methodology to manufacture MCMs that are radiation-hardened, structurally and thermally stable using 3-dimensional techniques allowing for high density integrated circuit packaging in a radiation hardened package.

The apparatus comprises; a case bottom cap, a case upper cap, a supporting panel, a cooking kettle, a kettle cushion, a radiation absorbing layer, a electromagnetic switch working circuit and a power earth line. In the case there is a radiation absorbing layer, and the functional device of the induction cooker is mounted in the case; the power earth line is connected to the radiation absorbing layer and the kettle body; the kettle cushion and the radiation absorbing layer forms a shielded enclosure used for absorbing the electromagnetic radiation generated by the electronic circuit. The absorbed electromagnetic radiation is released through the power earth line.

The invention relates to the field of cognitive radio (CR) and cellular mobile communication, in particular to a differential game-based CR system power control method. The control method comprises the following steps of: 1) constructing a CR system model; 2) designing a power extraction cost function and a power radiation hazard cost function; 3) constructing a power control differential game model; and 4) resolving feedback Nash equilibrium. In the method, the dynamic property of time continuity of an actual CR system is described well, a non-cooperative differential game model for controlling CR system power is established, a differential game-based distributed non-cooperative power control method is provided, and a feedback Nash equilibrium analytic solution is acquired. Through power control in a distributed non-cooperative power cognitive differential game (DNPCDG) algorithm, interference among cognitive users is effectively suppressed, so that total throughput is increased, and system performance is improved.

The invention provides a fungal composition prepared from lucid ganoderma extract and lucid ganoderma spore oil which serve as main raw materials and application of the composition to the preparation of health-care medicines with the effects of enhancing immunity and resisting radiation. The fungal composition comprises the following active ingredients in percentage by weight: 15 to 35 percent of lucid ganoderma extract and 65 to 85 percent of lucid ganoderma spore oil. Compared with the health-care product prepared from single lucid ganoderma or lucid ganoderma spore powder which serves as a raw material, the fungal composition has better and obvious effects of enhancing the immunity and assisting in protection against radiation hazards and is particularly suitable for patients who suffer from hypoimmunity and contact radiation, and in the process for processing the fungal composition, the technologies of supercritical CO2 extraction, supermicro nanometer rupture and ultrasonic extraction are adopted, so that the content of active ingredients in the lucid ganoderma composition is improved, the loss rate of the raw materials is small, the active ingredients are difficult to decompose, the medicinal effect is high, and the pollution on human and environment is prevented; and a process is stable, and the invention has the characteristics that the lucid ganoderma composition can be industrially produced on a large scale.

The invention discloses an adjustable bent catheter suitable to be operated by left hands. The adjustable bent catheter comprises a catheter body, a handle assembly and a Luer taper. The handle assembly comprises a gripping handle, a sliding mechanism and a sliding control mechanism; a proximal end of the catheter body penetrates a cavity of the gripping handle and is connected with the Luer taper; the sliding mechanism comprises a sliding base and a sliding component, the sliding base is arranged in the cavity of the gripping handle or the sliding control mechanism, and the sliding component is fittingly arranged on the sliding base, can axially slide along the gripping handle and is fixedly connected with a traction wire; the sliding control mechanism comprises connectors and a driving adjusting component, the connectors are connected with the sliding component, the driving adjusting component is connected with the connectors and is arranged at a proximal end of the gripping handle capable of being conveniently operated by fingers of the left hands, and the position of the sliding component can be adjusted by the driving adjusting component. The adjustable bent catheter has the advantages that the handle can be controlled by the left hands, guide wires can be controlled by right hands, accordingly the efficiency can be improved when the guide wires are explored into target blood vessels, operation steps can be simplified, super-selection can be conveniently and quickly carried out on the target blood vessels by operators, the surgical operation time can be shortened, and X-ray radiation hazards on patients can be reduced.

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 an astaxanthin-containing composition and a preparation method thereof. The astaxanthin-containing composition comprises astaxanthin-containing substance and a gelatinizing agent. The astaxanthin-containing composition has the following advantages: the astaxanthin-containing composition is safe and reliable to eat, is capable of remarkably resisting oxidation, auxiliarily reducing blood fat and blood sugar, relieving visual fatigue, auxiliarily protecting from radiation hazards and removing chloasma, and can better solve the problem that an astaxanthin-containing oral preparation product is not stable.

The invention discloses shell-broken ganoderma spore powder and particle combination and a preparation method thereof. Shell-broken ganoderma spore powder is extracted, centrifuged, concentrated, dried and crushed to obtain the shell-broken ganoderma spore powder and particle combination, the content of crude polysaccharide in the shell-broken ganoderma spore powder and particle combination is 10-20g / 100g, and the content of total triterpene in the shell-broken ganoderma spore powder and particle combination is 4-10g / 100g. The shell-broken ganoderma spore powder and particle combination has the advantages that immunities are enhanced, radiation hazards are reduced in an auxiliary manner, the shell-broken ganoderma spore powder is treated by the aid of a special process, the content of effective components are increased, nutrient components in the effective components can be effectively absorbed by human bodies, functions of the shell-broken ganoderma spore powder are effectively played, the shell-broken ganoderma spore powder is conveniently carried and taken, the shell-broken ganoderma spore powder and particle combination has an inhibiting effect on zebra fish human stomach cancer transplantation tumors, human lung cancer transplantation tumors and human lymphocyte cancer transplantation tumors, and the shell-broken ganoderma spore powder and particle combination has a strong inhibiting effect on the zebra fish human stomach cancer transplantation tumors and the human lymphocyte cancer transplantation tumors.

Communication is performed for a first communication device having a set of antenna elements. A quality-indication signal is received from a second communication device (e.g., a basestation). A complex weighting is calculated based on the quality-indication signal. A pre-transmission signal is modified based on the complex weighting to produce a set of modified-pre-transmission signals. Each modified pre-transmission signal from the set of modified-pre-transmission signals is uniquely associated with an antenna element from the set of antenna elements. The set of modified-pre-transmission signals is sent from the set of antenna elements to produce a transmitted signal. The complex weighting is associated with a total power of the transmitted power and at least one from a phase rotation and a power ratio associated with each antenna element from the set of antenna elements. For example, in CDMA based systems, a fast feedback from the basestation—the power control indication—can be used by a subscriber communication device for this transmission diversity method in such a way that provides the desired signal quality at the basestation, without necessarily responding to fading nulls by mobile unit power output increase, but rather, by manipulating the weights of the mobile transmitter antenna array. Thus, a significant reduction in average and peak mobile power level is achieved, enhancing network capacity, battery life, and radiation hazards.

The invention discloses a silver-plated polyester filament yarn wrapped in a cotton yarn and a manufacturing method thereof as well as a yarn core wrapping device. The silver-plated polyester filament yarn wrapped in a cotton yarn is characterized by comprising a silver-plated polyester filament yarn and a cotton yarn, and the cotton yarn is spirally wrapped outside the silver-plated polyester filament. After the technical measure above is adopted, the silver-plated polyester filament yarn wrapped in a cotton yarn has the advantages that: 1. the silver-plated polyester filament yarn is wrapped in the cotton yarn, therefore, the hardiness, flex resistance and resistant force of the manufactured silver-plated polyester filament yarn are enhanced; 2. the silver-plated polyester filament yarn is wrapped in the cotton yarn, so that the manufactured silver-plated polyester filament yarn has small possibility of dropping and being oxygenized, and even if dropping, the silver-plated polyester filament yarn also can drop in the wrapping of two cotton yarns, therefore, the radiation protection performance of the silver-plated polyester filament yarn is not affected; and 3. the silver-plated polyester filament yarn is wrapped in the cotton yarn, so that the manufactured silver-plated polyester filament yarn can be dyed, and can be washed and reused repeatedly, therefore, the radiation hazards can be shielded permanently, and the shielding effect of the silver-plated polyester filament yarn is better than those of other fabrics. In the invention, the operations of core wrapping and twisting can be completed in one step.

The invention relates to a nutritional composition for reducing radiation hazards and a preparation method thereof, and belongs to the field of health-care foods. The nutritional composition is prepared from the following components in parts by weight: 1-15 parts of an edible and medicinal fungus fermentation substance, 4-20 parts of beta-glucan, 1-20 parts of peptide, 10-40 parts of dietary fibers and 20-52 parts of maltodextrin. The nutritional composition has an effect of protecting a radiated animal or human body, directly enables a human body to positively prevent and dissolve radiation by forming an anti-radiation function for the human body, and can be used for relieving the feeling of body fatigue and further promoting the body immunity to positively deal with external invasions, so that the effect is more remarkable. The nutritional composition is simple and convenient to use.

The invention discloses an external radiation-free electromagnetic oven. The external radiation-free electromagnetic oven is composed of a shell pedestal, a shell top cover, a shielding panel, a cooking pot body, a shell radiation absorbing layer, an electromagnetic transition work circuit and a power supply ground wire. The shell pedestal, the shell top cover and the shielding panel form a complete shell, the radiation absorbing layer is arranged in a corresponding position of the shell, and functional devices of the electromagnetic oven are installed in the shell; and the power supply ground wire is connected with the shell radiation absorbing layer and the shielding panel, the cooking pot body fully contacts with the shielding panel, the shielding panel and the shell radiation absorbing layer form a complete shield cover body, and when an electronic circuit at the inner side of the shell shield cover body, shielding absorption of the shield cover body is realized, and the ground wire in power lines is connected with the ground to carry out discharge elimination in order to eliminate the hazards of discharged electromagnetic radiation during the working of the electromagnetic oven. The external radiation-free electromagnetic oven can be used in fields of household electromagnetic ovens, chafing dish electromagnetic ovens, tea electromagnetic ovens, cabinet electromagnetic ovens and electromagnetic cookers, and industrial and commercial electromagnetic induction heating fields.

The invention discloses an instant electromagnetic heating water pipe, and relates to the technical field of electromagnetic heating. The instant electromagnetic heating water pipe comprises a metal core pipe 1 and a plurality of electromagnetic induction coils 3 laid on the wall of the core pipe, wherein the electromagnetic induction coils are electrically connected with a high-frequency current generator. The instant electromagnetic heating water pipe is characterized in that the metal core pipe 1 is provided with a metal sleeve 2 which is of a sandwich structure, and the metal sleeve consists of an inner pipe 15 and an outer pipe 14. The electromagnetic induction coils 3 are positioned between the core pipe 1 and the sleeve 2, a water inlet 7 is arranged at one end of the sleeve 2, the other end of the sleeve 2 is communicated with one end of the core pipe through a communicating pipe 6, and a water outlet 8 is arranged at the other end of the core pipe. The instant electromagnetic heating water pipe has the advantages that the electromagnetic induction coils in parallel connection are parallelly arranged on one side or a plurality of sides of the core pipe and are uniformly and rapidly heated along the length direction of the core pipe, the sleeve externally wraps the core pipe, heat generated by the electromagnetic induction coils is absorbed by the inner pipe and the outer pipe and is not lost, heat efficiency is high, and the instant electromagnetic heating water pipe is safe in use and free from external radiation hazards by the aid of an insulating layer and a shielding layer.

The invention relates to a leakage test device for a mechanical penetration piece of a nuclear power plant containment vessel. The leakage test device is used for performing a test on the leakage rate of an isolation valve of the mechanical penetration piece of the nuclear power plant containment vessel. Combined with three basic principles of the leakage test of the mechanical penetration piece of the nuclear power plant containment vessel in China at present, basic test apparatuses required by the three basic principles are selected and matched reasonably to form a complete device system, the test application range is wide, and the device is strong in operability. By means of a mode of a movable draw-bar box, parts of the test device are distributed and combined reasonably, so that the test device is small in size and convenient to carry. Relevant instruments needing testing are quickly connected with the whole system device in a clamping mode, so that assembly and disassembly are simple, and testing of the instruments is convenient. The leakage test device for the mechanical penetration piece of the nuclear power plant containment vessel is convenient to carry, simple in operation and strong in practicability. By means of the leakage test device for the mechanical penetration piece of the nuclear power plant containment vessel, operation time of the test is greatly shortened, time spent by experiment operating personnel in a radiation control zone is shortened, and risks of radiation hazards suffered by the operating personnel are reduced.

This invention relates to a means for more efficiently and more safely providing self-luminous lighting devices for use in signs, markers, indicators and the like. The present invention provides self luminosity by means of a plurality of glass or polymer microspheres containing both a light-emitting phosphor and a radioactive gas. The “soft” emission of electrons from the beta emitting gas cannot penetrate the glass or polymer wall of the microspheres, thereby constituting no radiation hazard. A further advantage of the present invention is that the plurality of individual containment microspheres minimizes the escape of radioactive gas in the event of any physical damage to an assembly of such microspheres. A still further advantage of the invention is that the radioactive gas completely surrounds the phosphor particles, thus causing light emission from one hundred percent of the surface of the particles.

The invention discloses a device and method for measuring the thickness of electrical steel. The device for measuring the thickness of the electrical steel comprises a first plane-parallel capacitor and a second plane-parallel capacitor, the first plane-parallel capacitor represents a first capacitance value when the electrical steel penetrates through two polar plates of the first plane-parallel capacitor, and the second plane-parallel capacitor is used for representing a second capacitance value when no other objects exist between two polar plates of the second plane-parallel capacitor. The relative area and the distance of the two polar plates of the first plane-parallel capacitor are equal to the relative area and the distance of the two polar plates of the second plane-parallel capacitor, and the first plane-parallel capacitor and the second plane-parallel capacitor are both connected to a data processing device. The data processing device is used for calculating the thickness of the electrical steel according to the first capacitance value and the second capacitance value. The thickness detecting precision of the device and method for measuring the thickness of the electrical steel is not influenced by dust, moisture, wind and other environmental factors, radiation hazards cannot be brought to the environment and a human body in the detecting process, and the device and method are convenient to use.

The invention provides an inorganic negative ion coating and a preparation method thereof. Special mica powder is added to a coating formula, so that the aims of releasing negative ions and not generating radiological hazards are achieved. Meanwhile, a sodium silicate solution is modified through zinc oxide and an organic silicon solution, so that a coating film has super-strong adhesion and hardness, fireproof and flame-retardant properties, water resistance, stability and high temperature resistance. The obtained coating does not contain an organic solvent or other toxic or harmful substance and is an environment-friendly product.

The invention relates to a nutritional health product of pollen and Chinese wolfberry and a preparation method thereof, belonging to the technical field of nutritional health foods. The nutritional health product of the pollen and Chinese wolfberry comprises the following components in percent by weight: 5-40% of pollen extract, 10-40% of Chinese wolfberry extract, 10-35% of chrysanthemum extract and 5-70% of adjuvant. The nutritional health product of the pollen and Chinese wolfberry of the invention is suitable for all classes of people who frequently contact TV, computers, mobile telephones, microwave ovens and electromagnetic ovens for relieving and improving various insalubrious symptoms of radiation hazard, visual disorder and overstrain of nerves, malnutrition, fatigue and the like caused by surfing on the internet in a net bar for a long time. The invention has the advantages of convenient carrying and taking, good taste, easy absorption, sweet and sour taste, high bioavailability and the like, and an effervescent preparation can quickly and automatically dissolve.

The invention relates to a large-aperture, short-cavity and superconducting magnetic resonance imaging (MRI) minimally invasive surgery platform system. Through the system, minimally invasive surgery treatment can be performed by means of the navigation of magnetic resonance imaging. By the adoption of the large-aperture, short-cavity and high-magnetic-field superconducting MRI technology, the bottleneck problems that in MRI minimally invasive surgery treatment, the quality of images is poor, the real time performance is poor, and the surgical space is narrow are solved. Through the short-cavity MRI technology, bidirectional minimally invasive surgery operation can be performed on the two sides of an MRI magnet, and the range of application of MRI to the minimally invasive surgery treatment is expanded. The large-aperture, short-cavity and superconducting magnetic resonance imaging (MRI) minimally invasive surgery platform system further has the fast blood flow imaging function, the diffusion coefficient imaging function, the temperature distribution imaging function, the MR perspective function and the MR endoscopy function besides the intraoperative sub-second super-fast imaging function. Compared with the existing X-CT, the large-aperture, short-cavity and superconducting magnetic resonance imaging (MRI) minimally invasive surgery platform system has the same minimally invasive surgery capacity as the X-CT, and moreover radiation hazards to medical staff and patients caused by X-rays are fundamentally eliminated.

Telecommunications Policy Program Systems, Processes and Devices for the reduction of radiation hazard and / or other risks involved in the use of wireless telecommunication devices, are disclosed in the present application. According to the invention an Authorized User, using a Policy Program, can enable and / or disable at least one of the sound input and / or output channels of a telecommunication device in order to force a Subordinate User to use radiation-safer, and / or otherwise safer, sound input and / or output channels of said telecommunication device. According to two of the several preferred embodiments described in the application, the Policy program can be transferred to the telecommunication device from an external source or be built-in into said device.