Abstract: A radiation treatment head can include: a radiation source and a primary collimator, wherein the radiation source is configured to emit a radioactive beam; wherein the primary collimator is provided with a plurality of primary collimation channel groups; each of the primary collimation channel groups includes at least one primary collimation channel; and the radiation source and the primary collimator are movable relative to each other, so that the beam emitted from the radiation source is permissible to pass through any one of the primary collimation channels; and wherein the beam emitted from the radiation source, after passing through primary collimation channels of different primary collimation channel groups, forms fields with different sizes of areas on a reference plane.

Abstract: A microwave power control device can include: a microwave signal generator and a signal distribution circuitry connected to the microwave signal generator. The microwave signal generator is configured to generate microwave signals and transmit the microwave signals to the signal distribution circuitry; and the signal distribution circuitry is configured to distribute the microwave signals to n accelerating tubes according to a target microwave power distribution ratio, n being an integer greater than or equal to 2.

Abstract: A method for preparing a boron-containing low-carbon steel oxide film includes performing micro-arc oxidation on boron-containing low-carbon steel in an electrolyte by using the boron-containing low-carbon steel as an anode, to obtain a boron-containing low-carbon steel oxide film. The electrolyte contains sodium meta aluminate of 5 g/L to 25 g/L, sodium dihydrogen phosphate of 2 g/L to 10 g/L, sodium carbonate of 2 g/L to 15 g/L, and glycerol of 2 g/L to 8 g/L. The preparation method provided by the present invention has a simple and controllable process, and the obtained boron-containing low-carbon steel oxide film has a secure bond with the substrate, thus effectively avoiding occurrence of galvanic corrosion.

Abstract: Embodiments of the present disclosure provide a shift register, a gate driving circuit, a display panel and a display apparatus. The shift register comprises an inputting sub-circuit, an outputting sub-circuit, a resetting sub-circuit, and a first discharging controlling sub-circuit. The first discharging controlling sub-circuit is coupled to a first controlling signal inputting terminal, a second controlling signal inputting terminal and a signal outputting terminal, and configured to provide a second controlling signal from the second controlling signal inputting terminal to the signal outputting terminal under a control of a first controlling signal from the first controlling signal inputting terminal. The signal outputting terminal is set to a high level by inputting the first controlling signal and the second controlling signal to the shift register.

Abstract: The present invention relates to the technical field of medical devices. Disclosed is an adjustable collimator, which can solve the problem that existing collimators cannot achieve precise therapy in a small irradiation field. The adjustable collimator comprises a controller and two blade sets arranged opposite to each other; the blade sets comprise a plurality of blades, the controller drives the blades to move so as to form a first irradiation field through which a ray can pass; at least one blade in the blade set is a small irradiation field blade, and at least one irradiation field hole is provided on the small irradiation field blade; the controller is further used to drive the small irradiation field blade to move such that the irradiation field hole becomes a second irradiation field through which the ray can pass, wherein the second irradiation field is smaller than the first irradiation field.

Abstract: Provided are a radiotherapy device and system. The device includes: a fixed machine frame, a rotary machine frame, an imaging device and a treatment couch disposed on a side of the fixed machine frame. The treatment couch can move away from or close to the fixed machine frame along a first direction. The rotary machine frame is rotatably connected to the fixed machine frame provided with a treatment source; and the imaging device includes a ray emitter and a detector which are disposed oppositely, the ray emitter and/or the detector are/is disposed on the fixed machine frame, and rays emitted by the ray emitter are received by the detector after passing the affected part of patient, for capturing images of the affected part of the patient. The imaging device and the radiotherapy device are integrally designed, thereby effectively improving the locating accuracy of radiotherapy device, and improving effects of radiotherapy.

Abstract: Provided in the present disclosure is a treatment planning method comprising, acquiring a preset dose distribution scheme; generating a plurality of radiation dose distribution schemes according to a preset algorithm and equipment parameters of a radiotherapy system, wherein the equipment parameters of a radiotherapy system comprises one or more of the radiation energy, parameters of radiation field, radiation angle, dose distribution at different radiation angles, and radiation time; comparing the plurality of radiation dose distribution schemes to the preset dose distribution scheme, to determine at least one radiation dose distribution scheme that is closest to the preset dose distribution scheme; and making a treatment plan according to the determined radiation dose distribution scheme.

Abstract: A method, system, and computer program product, include obtaining a plurality of training sets of samples and a plurality of testing sets of samples from a data set of clinical records, the plurality of training sets of samples and the corresponding plurality of testing sets of samples including different samples of the data set, determining statistical significance for a plurality of risk factors of a model from the plurality of training sets of samples, determining a plurality of performance metrics of the model from the plurality of testing sets of samples, and determining an evaluation metric of the plurality of risk factors for the model based on the statistical significance and the plurality of performance metrics, the evaluation metric being for improving accuracy of the model.

Abstract: The present disclosure provides a method, apparatus and system for processing a case management model (CMM). According to an embodiment, there is provided a method for processing a CMM, the method includes: obtaining an existing CMM having a plurality of elements; obtaining a new CMM having at least one element; aligning an element of the new CMM to an element of the existing CMM according to match costs between the element of the new CMM and the plurality of elements of the existing CMM; and fusing the new CMM into the existing CMM based on the match cost between the aligned elements.

Abstract: The present disclosure provides a radiation therapy device and system. The radiation therapy device includes a first treatment head and a second treatment head. A beam emitted from the second treatment head intersects with a beam emitted from the first treatment head at an intersection point. The first treatment head is an X-ray treatment head, and the second treatment head is an X-ray treatment head, a multi-source focusing treatment head, or an intensity-modulated treatment head. The radiation therapy device may increase a dose rate at the intersection point.

Abstract: A radiotherapy equipment is provided. The radiotherapy equipment comprises at least two radiation apparatuses, the radiation apparatuses are configured to be capable of emitting radiation beams, the radiation beams emitted by at least two of the radiation apparatuses intersect at an intersection point, the radiation apparatuses are rotatable circumferentially about a rotation axis, and radiation positions of at least two of the radiation apparatuses are positioned at different cross-sections with respect to the rotation axis.

Abstract: The present disclosure provides an anti-reflective substrate and a method for preparing the same, an array substrate, and a display device. The anti-reflective substrate includes a base substrate and an anti-reflective film having an optical path control structure. The anti-reflective film is disposed on the base substrate, and the optical path control structure is configured to reduce a reflection of an incident light from a side of the base substrate on which the anti-reflective film is disposed.

Abstract: The present application is directed to a display device and an over-voltage protection method. As an example, the display device includes a power source assembly and an electric load. The power source assembly includes an LLC circuit, a transformer and a feedback circuit. An input end of the transformer is connected with a control end of the LLC circuit, a first output end of the transformer is connected with a supply end of the LLC circuit, a second output end of the transformer is connected with the electric load, and the transformer is configured to supply power to the LLC circuit and the electric load. A first end of the feedback circuit is connected with the second output end of the transformer, a second end of the feedback circuit is connected with the feedback end of the LLC circuit and the feedback circuit is configured to supply a voltage derived from the second output end of the transformer to the LLC circuit.

Abstract: The present disclosure discloses a radiation treatment plan generation method, which is applied to a therapeutic equipment comprising at least two therapeutic heads. The method comprises the steps of: acquiring images of an area of the patient with a tumor; determining a treatment target region including the tumor as a region for being irradiated with a radiation beam upon radiotherapy; obtaining a prescription dose of the treatment target, wherein the prescription dose comprises a parameter of prescription dose value that is a magnitude of a dose received by the tumor; and determining a therapeutic head, a therapeutic approach and a therapeutic drive approach suitable for irradiating the target region, based on the therapeutic target region and the prescription dose thereof.

Abstract: The present invention discloses a novel low-temperature fuel reforming unit based on combined external reformer of an engine, comprising an engine cylinder and an external low-temperature fuel reformer; the external low-temperature fuel reformer is winded with a heater strip and is provided with a first temperature controlled meter, the inlet of the external low-temperature fuel reformer is connected with a air inlet pipe and a fuel sample injection pipe, and a flow meter is arranged on the air inlet pipe; the fuel sample injection pipe is connected with a fuel injection pump and a fuel vaporization tank which is provided with a second temperature controlled meter; the outlet of the external low-temperature fuel reformer is connected with the engine inlet pipe via a reforming gas pipe; and the reformed low-temperature products enter into the engine inlet pipe via the reforming gas pipe for combining with the fresh air again to form a uniform hybrid gas, and the hybrid gas is introduced into the engine cylinde

Abstract: Disclosed are a connection assembly for a battery module and a battery module. The connection assembly for a battery module has a housing body, a cover plate and an openable and closable door, wherein the housing body is used for supporting a plurality of components; the cover plate covers the housing body and used for covering the plurality of components on the housing body; the cover plate is provided with a second through-hole, and the second through-hole positionally corresponds to at least one of the plurality of components; the openable and closable door is movably mounted on the cover plate, and is positionally changeable between an open position and a closed position; wherein in the open position, the openable and closable door opens the second through-hole to expose the at least one of the plurality of components; and in the closed position, the openable and closable door shields at least part of the second through-hole to cover the at least one of the plurality of components on the body.

Abstract: Disclosed are a connection assembly for a battery module and a battery module. The connection assembly for a battery module has a housing, a first cover plate and a second cover plate, wherein the housing has a body and a protrusion extending continuously from the body; the first cover plate covers the body; the second cover plate is arranged to be integrated with the first cover plate; the second cover plate is configured to be movable relative to the first cover plate so as to be switched between a closed position and an open position; in the closed position, the second cover plate covers the protrusion; and in the open position, the second cover plate is detached from the protrusion.

Abstract: The present application is directed to a display device and an over-voltage protection method. As an example, the display device includes a power source assembly and an electric load. The power source assembly includes an LLC circuit, a transformer and a feedback circuit. An input end of the transformer is connected with a control end of the LLC circuit, a first output end of the transformer is connected with a supply end of the LLC circuit, a second output end of the transformer is connected with the electric load, and the transformer is configured to supply power to the LLC circuit and the electric load. A first end of the feedback circuit is connected with the second output end of the transformer, a second end of the feedback circuit is connected with the feedback end of the LLC circuit and the feedback circuit is configured to supply a voltage derived from the second output end of the transformer to the LLC circuit.

Abstract: The present disclosure discloses a radiotherapeutic device. The radiotherapeutic device comprises a gantry, at least two therapeutic heads, a first detector and a slide driving unit. The slide driving unit comprises a sliding guide rail, a driving apparatus and a movable block. The first detector is fixed on the movable block and is driven by the movable block via the driving apparatus to slide along the sliding guide rail to different positions to receive radiation beams emitted by therapeutic heads.

Abstract: A radiation therapeutic head, a collimator assembly, and a control method of a radiotherapeutic equipment are provided. The therapeutic head includes: a source carrier; first radiation sources for focusing therapy and a second radiation source for conformal therapy that are disposed on the source carrier; a switch body located on an emitting side of the first and second radiation sources and provided with through holes therein, the switch body being configured to control alignment of the through holes with the first and second radiation sources to allow the emission of rays from the first and second radiation sources; and a collimator assembly, the collimator assembly further includes a carrier; a focusing collimator and a multi-leaf collimator disposed on the source carrier.