13 results about "Radiation process" patented technology

The invention provides a PVDF-based elastic ferroelectric material and a preparation method and application thereof, and relates to the technical field of ferroelectric materials. A ferroelectric crystal phase region of the PVDF-based elastic ferroelectric material is protected to the maximum extent, and a uniform three-dimensional elastic network structure formed by firm C-C bonds is constructed in an amorphous region by a PVDF-based ferroelectric polymer and a crosslinking sensitizer through radiation crosslinking; the PVDF-based elastic ferroelectric material has excellent ferroelectricity, great flexibility and elasticity, proper strength and excellent fatigue resistance at the same time. According to the preparation method of the PVDF-based elastic ferroelectric material, the technical bottlenecks of thermal crosslinking and photo-crosslinking are fundamentally overcome through a mild, pure and uniform radiation process, so that controllable preparation of the PVDF-based elastic ferroelectric material with excellent ferroelectricity, great flexibility and elasticity, proper strength and excellent fatigue resistance becomes reality; the preparation method is simple, efficient and high in universality, and is very suitable for large-scale industrial production.

A method for producing a polymeric compound with a positive temperature coefficient (PPTC) and for conformally applying such a compound to a substrate according to an embodiment of the present disclosure may include producing and mixing raw materials to form a PPTC mixture, processing the PPTC mixture by a polymer compounding plant, wherein the PPTC mixture is heated and extruded as a PPTC compound, performing a radiation process on the polymer compound to produce cross-linking between the polymer chains in the PPTC compound, and applying the PPTC compound to a substrate using a hot application process in which the PPTC compound is heated and conformally applied to a surface of the substrate.

A process flow for bonding a die to a substrate incorporates defectivity risk management and yield promotion by reducing flow complexity. In some embodiments, the process flow may include a radiation process on a component substrate to weaken an adhesive bonding of dies from a surface of the component substrate, a first wet clean process on the component substrate after the radiation process to clean die bonding surfaces, eject and pick processes after performing the first wet clean process to remove dies from the component substrate for bonding to a substrate, a plasma activation process on the substrate, a second wet clean process after the plasma activation process on the substrate to clean a substrate bonding surface of the substrate, and a hybrid bonding process to bond die bonding surfaces of the dies to the substrate bonding surface of the substrate.

The invention relates to an automatic treatment field segmentation method for controlling a treatment time in a plan. The method comprises defining a radiation field associated with an initially defined radiation process; automatically segmenting the radiation field into a plurality of N sub-fields based on a set of criteria, wherein N > 2 and n e N, said set of criteria comprising at least a time limit associated with a duration of the radiation process for at least one of the N sub-fields; and providing a radiation beam configuration to control a radiation device adapted to provide the radiation process associated with the segmented radiation field.

The invention provides a multi-mode identification tag for a library and a book identification method. According to the application, the graphene pattern is superposed on the radio frequency unit, so that on one hand, the first identification information of the book can be independently obtained through a radio frequency interaction mode so as to determine the identification code of the book; on the other hand, corresponding phase components can be superposed in the radiation process of the radio-frequency signal through charge distribution excited by the graphene pattern, so that second identification information of the book can be independently obtained through phase information of the radio-frequency signal; and the identification information is utilized to realize automatic identification of book collection positions, storage requirements or other management information. According to the antenna, independent coding of the management information corresponding to the book can be flexibly realized through a photosensitive material coating mode according to management requirements, important management information can be directly prompted under the condition that a book management system is not searched, and an operator can conveniently and directly carry out corresponding maintenance management on the book. The multi-mode identification tag provided by the invention can be flexibly updated according to management requirements, so that more flexibility and convenience are brought to book management work.

The invention discloses a wind turbine blade based on streaming control, the outer end of the wind turbine blade is a blade tip, the inner end of the wind turbine blade is a blade root fixed on a blade base, a streaming control unit is arranged on the trailing edge of the wind turbine blade in the spanwise direction, and the streaming control unit is provided with a streaming control unit base embedded in the trailing edge. An insertion hole is formed in the outer side of the streaming control unit base, a piezoelectric material is embedded in the insertion hole, and a vibration sheet is arranged at the outer end of the piezoelectric material. According to the invention, a device which vibrates by a piezoelectric material to drive air to vibrate so as to achieve the purpose of streaming control is designed and arranged on the tail edge of the wind turbine blade along the spanwise direction; according to the device, a vortex structure for generating noise radiation is destroyed at a higher frequency; the energy block radiated by eddy current noise is reduced, and the eddy current noise is quickly dissipated in the radiation process; and thus, the sound feeling of the receiver is reduced.

To surely detect an end side of an original without being affected by a noise shadow caused by ruggedness or the like of a surface of the original.SOLUTION: The first lighting device 31 can selectively irradiate the target area with the light of the first primary color and the light of the second primary color from the first irradiating section 310. The second illumination device 32 is configured to irradiate the target area with light of a third primary color from the second irradiating section 320. The control portion 5b causes the first illumination device 31 and the second illumination device 32 to execute a sequential radiation process of sequentially radiating light of the three primary colors to the target area when the optical scanning process is executed. When the optical scanning process and the sequential irradiation process are executed, the image data output portion 4 sequentially outputs line image data of three colors corresponding to the detected light amounts of the light of the three primary colors detected by the line sensor. A linear shadow image along the front end side or the rear end side of the document is detected from the plurality of sets of three color line image data.SELECTED DRAWING: Figure 4

A computer-implemented method, a computer-implemented apparatus, a system and a computer program product for radiation treatment planning are suggested, the method comprising defining a radiation field associated with an initially defined radiation process, automatically splitting the radiation field into a plurality of N sub-fields, with N≥2 and n∈, based on a set of metrics, the set of metrics at least comprising a time limitation associated with a duration of a radiation process for at least one of the N sub-fields, and providing a radiation beam configuration for controlling a radiation apparatus adapted to provide the radiation process associated with the split radiation field.

The present invention relates to a beam line system and method for spectral purification and effect verification thereof, comprising: an upstream radiation source interface for receiving broad spectrum radiation; the bunch transmission channel is used for limiting a radiation propagation path; the switchable spectrum blocking verification assembly can be switched between a first working state in which the switchable spectrum blocking verification assembly is inserted into the radiation propagation path and a second working state in which the switchable spectrum blocking verification assembly is moved out of the radiation propagation path, and is used for regulating and controlling radiation entering a subsequent structure under different spectrum conditions; the spectrum selection and purification assembly is used for carrying out selective transmission and spectrum purification on radiation of a specific target wave band; and the downstream detection unit is used for receiving and detecting the radiation treated by the spectrum selection and purification assembly. The beneficial effects of the invention are that through the combination of the double-reflector spectrum selection system and the narrowband filter membrane assembly, the multi-stage selection of the radiation of the specific target wave band is realized, and the spectral purity of the radiation of the target wave band can be improved.

The application discloses a radiation source tracing correction method and device based on oxygen absorption loss and a storage medium, and comprises the following steps: calculating an oxygen absorption loss value Lo2 in a detection distance h from a radiation source; correcting a dipole moment of an equivalent electric dipole of the radiation source by using the obtained oxygen absorption loss value; and predicting environmental radiation based on the dipole moment of the corrected equivalent electric dipole. According to the oxygen absorption loss and the dipole moment of the equivalent electric dipole under the premise that the detection distance is known, the dipole moment of the equivalent electric dipole of the radiation source is corrected, so that the prediction of the environmental radiation based on the corrected dipole moment is more accurate.

The application discloses a monoclinic phase BiVO4 micropipe prepared by a microwave radiation method and a preparation method thereof. Pure Bi(NO3)3.5H2O and NH4VO3 are used as reaction raw materials, distilled water is used as a solvent, polyethylene glycol (PEG-10000) with a molecular weight of 10000 is used as a surfactant, and a monoclinic phase BiVO4 micropipe material is prepared by using a microwave radiation technology. The microwave radiation process is simple in operation, energy-saving and environment-friendly, low in energy consumption, and energy-concentrated, and is favorable for improving a reaction rate and a synthesis efficiency of the BiVO4 material. The XRD and SEM analysis results of the product fully prove that the method can obtain the BiVO4 material with regular morphology and small particle size, is favorable for increasing active sites of the BiVO4 material, and thus improves the photocatalytic performance of the BiVO4 material. The target product BiVO4 material has the abilities of catalytic degradation of pollutants, catalytic photoelectrochemical decomposition of water and energy storage, and is expected to play an important role in the field of photocatalysis.

The application discloses a long afterglow composite material based on excited state regulation of bromine-containing naphthalimide structure carbon dots, which comprises bromine-containing carbon dots and a matrix material; the bromine-containing carbon dots are carbon dots formed by carbonization of bromine-containing naphthalimide compounds and serve as single light-emitting centers; the matrix material is used for constructing a limited environment, regulating excited state kinetic behavior of the bromine-containing carbon dots and realizing long afterglow light emission; the large pi conjugated structure introduced into the carbon dots is beneficial to the formation of a stable excited state, the heavy atom effect of bromine atoms enhances spin-orbit coupling, promotes intersystem crossing and improves the generation efficiency of triplet excitons; different matrices regulate radiation and non-radiation processes of the triplet excitons through rigid confinement or intermolecular interaction, so that the long afterglow light emission performance is effectively regulated. The application can realize the regulatable output of light emission behavior without constructing a multi-light-emitting center or a complex doped system, and can be applied to the fields of information storage, anti-counterfeiting and optoelectronic devices.

The invention discloses a perovskite thin film heterostructure with a low ASE threshold value, a preparation method of the perovskite thin film heterostructure and a laser, and relates to the technical field of perovskite lasers. The perovskite thin film heterostructure comprises a perovskite thin film and colloidal quantum dots arranged on the perovskite thin film or doped in the perovskite thin film, the perovskite thin film can generate gain laser of a second preset wavelength under excitation of pumping laser of a first preset wavelength, and the light emitting wavelength of the colloidal quantum dots is located between the first preset wavelength and the second preset wavelength. And an energy level gradient is formed between the colloidal quantum dot layer and the perovskite thin film. When the colloidal quantum dots are excited by pumping laser to generate a large number of carriers, the carriers are driven by energy level gradient to be injected into the perovskite thin film, the energy transfer process is faster than the excited radiation process of perovskite, the energy transfer process can serve as a part of the population inversion number of the perovskite thin film, the achievement of particle inversion conditions required by amplified spontaneous emission is promoted, and the performance of the perovskite thin film is improved. Therefore, the threshold value of gain laser generated by the perovskite thin film is reduced.