135 results about "Radiation process" patented technology

A radiation apparatus (10) includes a beam source (12) generating radiation beam toward a target (11). A projection detector (17) detects the images of the target (11) formed by the radiation beam. In a radiation treatment session using the apparatus (10), the beam source (12) first generates a low intensity beam. The projection detector (17) generates image signals of a patient under the treatment. A control module (18) in the apparatus (10) develops a treatment plan in accordance with a treatment prescription and the image signals. Subsequently, the beam source (12) generates a treatment beam according to the treatment plan. The projection detector (17) can generate further image signals formed by the treatment beam to verify the treatment process.

The present invention relates to surface grafting process of preparing hydrophilic nanofiltering film. The surface grafting process is one radiation grafting process, which is low temperature plasma radiation process, ultraviolet radiation process, high energy ray radiation process, etc. The present invention has simple operation, controllable reaction, regulation of separating membrane performance in great range and other features, and is especially suitable for the preparation of hydrophilic nanofiltering film.

The invention provides a Loop antenna system with gaps for radiation. The Loop antenna system comprises a metal frame. The two gaps are formed in the bottom edge of the metal frame. The interior of the metal frame is divided into a clearance zone and a main land portion. The clearance zone is located on the side, close to the gaps, in the metal frame and the main land portion is connected with the metal frame. The two ends of the portion, between the two gaps, of the metal frame are connected with a feed source and the main land portion respectively through antenna portions, so that a Loop antenna structural mode is formed and the antenna portions are located in the clearance zone. According to the Loop antenna system, the metal frame of a mobile terminal serves as a part of an antenna to be used in the radiation process. On one hand, radiation is conducted by the two gaps and the Loop antenna together so that the high-radiation antenna system can be formed and have the advantage that the bandwidth is increased; on the other hand, due to the facts that the two gaps are formed in the bottom edge and the Loop antenna is low in sensitivity, the Loop antenna system has the advantages of being low in sensitivity and high in signal strength.

The invention provides a direct assimilation method of MODIS satellite data. The direct assimilation method of the MODIS satellite data includes the steps that the MODIS satellite data are pre-processed; the MODIS satellite data are detected; an assimilation satellite data set is determined; a radiation transmission mode is optimized; the MODIS satellite data are assimilated. Simulation of the radiation transmission mode on the earth surface radiation process is improved, the accuracy of simulating the atmosphere movement inside a boundary layer by a numerical mode is improved, and the accuracy of numerical weather prediction data for wind power forecast is further improved.

The invention relates to a new energy vehicle motor with heat radiation and dedusting functions; the motor has a housing, a rotary shaft, a rotor, a stator and a filter net, a heat radiation mechanismand a dedusting mechanism; the heat radiation mechanism comprises an air exhaust assembly and a cooling assembly; the air exhaust assembly comprises a trigger unit and an air exhaust unit; the cooling assembly comprises a connecting tube, a water tank, a gas inlet tube, a gas outlet tube and a drying room; the dedusting mechanism comprises a control room, a second spring, a vertical rod, a fixedblock, a cleaning brush and a bellows. The new energy vehicle motor with heat radiation and dedusting functions can use the heat radiation mechanism to assist the heat radiation process, thus preventing the internal temperature of the housing from getting too high and causing motor damages, and protecting motor safety; the dedusting mechanism can clean the filter net so as to prevent dusts and impurity from blocking the filter net, thus greatly improving the motor safety and reliability.

The present invention discloses a mobile electron beam radiation sterilizing apparatus, comprising: a movable chassis vehicle (1); a cabinet body (2) installed on the chassis vehicle (1); an electron accelerator (6) which generates electron beam for articles to be radiation-processed; an accelerator control box (31), which controls operation of the accelerator, wherein the electron accelerator (6) is provided in the cabinet body. The invention has advantages as following: since the electron accelerator is provided in the cabinet body of the chassis vehicle, it has a small volume with flexible maneuverability, which can be transferred rapidly in a short time. In addition, the apparatus has no additional requirement of using environment, and does not need any additional construction. The invention can implement electron beam radiation for all kinds of documents and mails and achieve rapid and complete sterilization, reaching safety purpose. Further, there is no damage or residual radiation for the processed articles. Moreover, the apparatus has a high degree of automation assembly with easy operations and safety. Thus, it is suitable for chief departments at home and abroad.

The invention discloses an anion-exchange membrane for fuel cells and a preparation method thereof, and a fuel cell using the anion-exchange membrane. The preparation method of the anion-exchange membrane comprises the following steps: mixing a polymer ionic liquid, a polymer monomer A and an emulsifier, dropwisely adding the mixture on a glass plate, putting the glass plate in a radiation field in a nitrogen atmosphere, carrying out radiation by a cobalt 60-gamma radiation process for 30-40 minutes to initiate polymerization radiation free radical reaction, and immersing the obtained polymer membrane in a 0.5-1 mol/L KOH solution at 50-60 DEG C for 60-78 hours to perform ion exchange; and finally, immersing the membrane in deionized water until the residual deionized water is neutral. The anion-exchange membrane disclosed by the invention has the advantages of favorable alkali resistance, favorable mechanical properties, higher ionic conductivity and higher heat stability.

The invention discloses an innovative process to produce highly antibacterial nano-composite fabric textile containing silver metal compound. The process mainly uses high-energy D-ray radiation to modify silver type of bactericides and graft or crosslink them onto Nylon or PET fiber surface to produce excellent antibacterial textile products. The mechanism uses silver nano-compound as performance additive and through Co-60 irradiation technique reduces and firmly fastens silver particles onto Nylon or PET (Polyethylene Terephthalate) fiber material. Because the inorganic silver type bactericides actively interact with enzymes in bacteria or destroy cell walls to achieve good bactericidal effect, the radiation process does not need initiators or other additives. So the process is simple and effective. The test results prove excellent bactericidal power and potential value in household or medical textile products.

The present invention relates to new microwave radiation process for producing potassium sulfate. The process includes the following steps: mixing potassium chloride and industrial sulfuric acid in certain weight ratio in an anticorrosive reactor, radiating with 600-50,000 MHz microwave while stirring to react at 400-800 deg.c for 5-60 min to produce potassium sulfate, cooling and crushing to obtain potassium sulfate product, and cooling the produced hydrogen chloride gas and absorbing with water in an absorbing tower to produce hydrochloric acid as the side product. Compared with available technology, the present invention has the advantages of high reaction speed, short production period, high product quality, no environmental pollution, etc.

The invention belongs to a method for preparing water-soluble chitosan through a radiation process. Small molecular weight or water-soluble chitosan is obtained by carrying out radiation degradation on a refined solid or solution of high molecular weight chitosan by using 60Cogamma rays, and carrying out post-processing steps of a degradation product, such as dissolving, decolourizing and the like. The method is convenient to operate, rapid, simple, convenient, high in yield, good in repeatability, easy to control molecular weight, environment-friendly, low in pollution and low in cost. The method not only can be used for rapidly preparing a few water-soluble chitosan samples but also has further industrial possibility. The obtained chitosan is multifunctional and can be used as an agricultural output increasing agent, a food drying agent, a natural antibacterial material, a biomedical material and the like.

The invention provides an electron radiation cross-linked polypropylene foam sheet and a preparation method thereof. The electron radiation cross-linked polypropylene foam sheet comprises 55-68wt% of a polypropylene resin, 10-20wt% of a polyethylene resin, 10-15wt% of a polyoxyethylene resin, 4-9wt% of a cross-linking agent, 3-8wt% of an antioxidant and 5-10wt% of a foaming agent. The performances of materials and the characteristics of a production technology are fully combined, a radiation process is utilized to overcome the rapid decrease trend of the intensity of polypropylene when the temperature is higher than the melting point, the content of polyethylene in the sheet plays a substantial role in the cross-linking degree of polypropylene, and the cross-linking degree of polypropylene is the key for polypropylene foaming. Compared with polypropylene foam sheets obtained through common radiation cross-linking methods, the polypropylene foam sheet prepared in the invention has the advantages of substantially improved performances, obviously improved tensile strength and elongation at break, fine foam holes, and uniform foaming.

The invention discloses a passive transceiving common-frequency RFID system with a triaxial closed-loop self-tuning function. According to the passive transceiving common-frequency RFID system, a triaxial tuning network is inserted in a space between a directional device of a reader-writer and a high-frequency switch. The triaxial tuning network comprises a basic fixed capacitor, an intermediate digital tuning capacitor, an input digital tuning capacitor and an output digital tuning capacitor. Tuning parameter table items are established automatically corresponding to a currently selected antenna port for all working frequency points in a working frequency band of the reader-writer so as to form a tuning parameter table bound with the antenna port and the working frequency band. In the continuous radiation process of an antenna connected with the antenna port of the reader-writer, the reader-writer reflects power detection in real time, dynamically modifies the tuning parameter table, and compensates for environmental changes within the radiation range of the antenna in real time. For the purpose of prolonging a label reading distance, improving the transmitting power of the reader-writer and restraining forward leakage and forward reflection of the reader-writer at the same time, the triaxial tuning network is used for lowering the forward reflection of the reader-writer. The method is simple in circuit and debugging.

The disclosure relates to an electrical installation device, e.g., a circuit-breaker, motor protecting switch, and similar, comprising a housing that is formed from shell-type housing parts, an electromagnetic trigger, a thermal trigger, a breaker mechanism with a latching point, a slide which transmits the movements of the thermal trigger and the magnetic trigger to the breaker mechanism in order to unlatch the same, and a striker that is connected to the armature of the electromagnetic trigger and acts upon a movable contact piece of a contact point in case of a short-circuit so as to open the contact point. The shell-type housing parts, the slide, and the striker are made of plastic. At least the slide is formed from radiation-crosslinked thermoplastic to which an additive has been added as a crosslinking promoter before the radiation process.

The invention relates to the technical field of disperse processing of inorganic nano materials and polymers, and in particular relates to an inorganic nano photo-crosslinking promoter and a preparation method thereof, and a nano composite photo-crosslinking EVA adhesive film and a preparation method thereof. The preparation method of the inorganic nano photo-crosslinking promoter comprises the following steps: modifying inorganic nano powder, and mixing the prepared modified organic nano powder with an auxiliary agent and a solvent to prepare the inorganic nano photo-crosslinking promoter; and the preparation method of the nano composite EVA film comprises the following steps: mixing the inorganic nano photo-crosslinking promoter with other auxiliary agents to prepare an auxiliary agent mixture, and then mixing the auxiliary agent mixture with EVA to prepare the nano composite EVA film by virtue of a tape-casting process. The prepared nano composite photo-crosslinking EVA adhesive film disclosed by the invention has excellent mechanical performance and electrical performance, is strong in weather resistance, high in light transmittance rate, small in volume shrinkage, simple in process equipment and less in investment, is easy to operate, cannot cause pollution to the environment, does not have harsh safety protection requirements, and has small radiation damage to EVA in a radiation process; and the nano composite EVA film can be used for conveniently adhering a display screen to a touch screen together, is convenient to rework, and also can be used for avoiding overflowing adhesives from blocking holes.