220 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.

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 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 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 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 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 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.

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.