Abstract: Disclosed is a stereophotogrammetric method based on binocular vision, including the following steps: image acquisition, image correction and stereo matching are performed; cost matching and cost aggregation are performed on images of different sizes after correction; image segmentation is performed on the corrected image to determine edge pixel points of the object to be measured; and a pixel distance at an edge of the object to be measured is calculated to measure the size of the object. The method of the present invention enhances the matching accuracy of contour pixels of the object to be measured and improves the measurement accuracy.

Abstract: Disclosed in the present invention are a pyridine-2-amine derivative and a pharmaceutical composition and use thereof. The pyridine-2-amine derivative can be used as a TLR8 selective agonist, has the characteristics of high selectivity, strong activity and high safety, can be used for preventing and/or treating diseases related to TLR activity, for example, diseases caused by or related to pathogen infection, immunological diseases, inflammation, and tumors, can also be used for preparing a vaccine adjuvant to enhance immune response, and has better application prospects and research and development value.

Abstract: A mannose derivative is an isonitrile-containing mannose derivative of formula (I), including different linking groups X: A radioactive preparation is provided, including a radiolabeled compound formed by radiolabeling the mannose derivative with a radionuclide. An application of the radioactive preparation in the diagnosis and treatment of tumors is also provided.

Abstract: The present disclosure relates to the combination of IN10018 and an epidermal growth factor receptor tyrosine kinase inhibitor for the treatment of tumors.

Abstract: A check valve for low pressure operating conditions includes: a valve cover, a valve body, and an upper diaphragm between the body and the cover. A first pressure cavity is provided on a lower surface of the valve cover and used for accommodating a backward direction medium, a second pressure cavity is machined on an upper surface of the valve body, within which an inflow passage and an outflow passage are provided, an inflow hole is machined from an inner wall of the inflow passage to a bottom face of the second pressure cavity, and a medium enters into the second pressure cavity from the inflow passage via the inflow hole, and applies upward pressure on the upper diaphragm. A backflow channel in communication with the first pressure cavity is machined on a side wall of the outflow passage.

Abstract: Disclosed herein is a benzene ring-containing glucose derivative of formula (I): where R1 is each independently and R2 is hydrogen. This application also provides a radioactive drug, including a complex formed by the benzene ring-containing glucose derivative and a radionuclide. Use of the benzene ring-containing glucose derivative in the tumor treatment and diagnosis is further provided.

Abstract: The present disclosure is applicable to the technical field of maintenance of submarine cables, and provides a fault diagnosis method and apparatus for a submarine cable, and a device. The method includes: obtaining deployment data and sensed data of a target submarine cable; and inputting the deployment data and the sensed data into a trained fault diagnosis model to obtain a diagnosis result of the target submarine cable, where the fault diagnosis model is a probabilistic neural network model, and the diagnosis result includes a fault type. The present disclosure uses the trained probabilistic neural network model as the fault diagnosis model to diagnose a fault of the target submarine cable, and can quickly and accurately obtain the fault type of the target submarine cable.

Abstract: The present invention discloses a unit commitment method considering security region of wind turbine generators with frequency response control, and the main steps are: 1) determining security region of wind turbine generators when provides frequency response; 2) based on the security region of the wind turbine generators when provides frequency response, establishing a unit commitment model considering security region of wind turbine generators; and 3) calculating the unit commitment model considering the security region of the wind turbine generators by using mixed-integer linear programming method, and obtaining the operation result of the unit commitment considering the security region of the wind turbine generators with frequency response control. The present invention can be widely used in the setting of frequency response parameters of wind turbine generators dispatched in the prior art and the start-stop and output plans of synchronous generator.

Abstract: Disclosed herein is a benzene ring-containing glucose derivative of formula (I): , where R1 is each independently and R2 is hydrogen. This application also provides a radioactive drug, including a complex formed by the benzene ring-containing glucose derivative and a radionuclide. Use of the benzene ring-containing glucose derivative in the tumor treatment and diagnosis is further provided.

Abstract: The present disclosure is applicable to the technical field of maintenance of submarine cables, and provides a fault diagnosis method and apparatus for a submarine cable, and a device. The method includes: obtaining deployment data and sensed data of a target submarine cable; and inputting the deployment data and the sensed data into a trained fault diagnosis model to obtain a diagnosis result of the target submarine cable, where the fault diagnosis model is a probabilistic neural network model, and the diagnosis result includes a fault type. The present disclosure uses the trained probabilistic neural network model as the fault diagnosis model to diagnose a fault of the target submarine cable, and can quickly and accurately obtain the fault type of the target submarine cable.

Abstract: A 99mTc-labeled isonitrile-containing glucose derivative having the general formula [99mTc-(CNDG)6]+, preparation method and use thereof is disclosed herein. The derivative is centered on 99mTc+, and the carbon atom of the isonitrile in CNDG coordinates with 99mTc(I) to form a hexacoordinated complex [99mTc-(CNDG)6]+. The [99mTc-(CNDG)6]+ derivative was obtained by the synthesis of the ligand CNDG and the preparation of the lyophilized CNDG kit. The derivative of this disclosure has good stability, simple preparation, high uptake and good retention at a tumor site, and high tumor/non-target ratio, and it is a novel 99mTc-labeled isonitrile-containing glucose derivative with excellent performance for tumor imaging. The derivative of this disclosure is advantageous for popularization and application.

Abstract: The present invention discloses a unit commitment method considering security region of wind turbine generators with frequency response control, and the main steps are: 1) determining security region of wind turbine generators when provides frequency response; 2) based on the security region of the wind turbine generators when provides frequency response, establishing a unit commitment model considering security region of wind turbine generators; and 3) calculating the unit commitment model considering the security region of the wind turbine generators by using mixed-integer linear programming method, and obtaining the operation result of the unit commitment considering the security region of the wind turbine generators with frequency response control. The present invention can be widely used in the setting of frequency response parameters of wind turbine generators dispatched in the prior art and the start-stop and output plans of synchronous generator.

Abstract: A phase diagnosis method and apparatus. When it is verified that the location of an engine is valid, an oil injector performs spraying at a top center compression position; if no acceleration is detected after spraying, it indicates that a fault occurs; in order to detect whether it is a fault of phase deviation of the camshaft by 180 degrees, the oil sprayer performs spraying at the top center exhaust position and detects whether there is an acceleration; if an acceleration is detected, it indicates that the situation of the phase deviation of the camshaft by 180 degrees exists. In this way, the problem in the prior art of being unable to detect phase deviation when the phase of a camshaft is deviated by 180 degrees is solved.

Abstract: A brewing cavity and a coffee brewer including the brewing cavity are provided. The brewing cavity includes a brewing cavity shell and a brewing chamber having a groove with an inner diameter less than that of the brewing chamber. A side wall of the groove has a coffee outlet communicatively connected with an exterior. A bottom portion of the groove is provided with a through hole internally provided with a coffee seal ring. A pressure sealing water outlet element is fixedly mounted on an upper end surface of the groove. A filtering portion for filtering coffee is arranged above the pressure sealing water outlet element. A first sliding hole in the filtering portion, a second sealing sliding hole in the pressure sealing water outlet element and a third sealing sliding hole in the coffee seal ring are internally provided with discharge portion capable of sliding along the through hoe axially.

Abstract: A method for preparing a soil conditioner comprises the following steps: swelling alginates in distilled water to obtain alginate gel; adding chitosan to prepare an alginate/chitosan composite material; reacting with N-isopropylacrylamide, and dissolving the obtained reaction product in water to obtain an aqueous phase; dissolving a soil conditioning material in a solvent to obtain an oil phase; mixing the oil phase with the aqueous phase, and performing stirring reaction and centrifugal separation to prepare the product. Compared with the prior art, the present invention implements conditioning and intelligent controlled release of soil by means of molecular structure design and composition control.

Abstract: A cyclic preheating coffee pot includes a main body, a brewing cavity, a water supply apparatus, a heating apparatus, a water inlet pipe and a water outlet pipe mounted on the main body, and a control apparatus, a driving apparatus and a flow dividing structure mounted on the main body. The water supply apparatus is communicated with the heating apparatus, the water supply apparatus is configured to supply water to the heating apparatus, and the water outlet pipe is communicated with the heating apparatus and the flow dividing structure. The flow dividing structure includes a first branch. The water outlet pipe is communicated with the water supply apparatus via the first branch, such that the water supply apparatus, the water inlet pipe, the heating apparatus, the water outlet pipe and the first branch are communicated and form a cyclic pipeline provided with a one-way valve apparatus or a water pump.

Abstract: A fast blind plate switching device, comprising a sealing structure, a clamping structure, a support structure and an execution mechanism. The blind plate has an open-state structure and a blind-state structure. The support structure is used for connecting pipelines at two sides and providing support for the whole device. The clamping structure and the sealing structure are located inside the support structure. The clamping structure is driven by the execution mechanism, and under the drive of the execution mechanism, the clamping structure presses on the blind plate (1) to eliminate a gap between two sides of the blind plate, so that a seal is formed by means of the sealing structure. When a gap is formed away from the blind plate (1), the open/blind state of the blind plate (1) is switched.

Abstract: A peak shaving control method for emergent source-grid coordination in case of a faulty sending-end power grid. The method includes: S1: evaluating dispatchability of a cluster virtual wind power unit; S2: developing a method for calculating a dispatchability index of the cluster virtual wind power unit; S3: analyzing a source-load peak-shaving resource strategy; and S4: distributing a control strategy for tie-line peak shaving. The present disclosure has the following beneficial effects: In the present disclosure, real-time dispatchability of wind power participating in real-time power balance is first analyzed, specific evaluation indexes and calculation methods are provided, and calculation examples are given for verification. Then, an optimized real-time dispatch strategy is provided based on demand-side response resources, and DC and AC tie-lines are coordinated for operation.

Abstract: A gas control system of a non-road gas engine and a gas control method thereof are disclosed by the present disclosure. The gas control system includes a mixer, the mixer is provided with an air inlet, a gas inlet and a mixed gas outlet respectively, the air inlet is provided with a first pressure sensor, the gas inlet is provided with a second pressure sensor and a pressure regulating valve that are spaced apart, and the mixed gas outlet is provided with a third pressure sensor; the first pressure sensor, the second pressure sensor, the pressure regulating valve and the third pressure sensor are respectively electrically connected to a controller, and the controller controls an opening degree of the pressure regulating valve according to pressure information fed back by the first pressure sensor, the second pressure sensor and the third pressure sensor so as to adjust an air-gas ratio of the mixed gas. The system has a simple structure.

Abstract: A phase diagnosis method and apparatus. When it is verified that the location of an engine is valid, an oil injector performs spraying at a top center compression position; if no acceleration is detected after spraying, it indicates that a fault occurs; in order to detect whether it is a fault of phase deviation of the camshaft by 180 degrees, the oil sprayer performs spraying at the top center exhaust position and detects whether there is an acceleration; if an acceleration is detected, it indicates that the situation of the phase deviation of the camshaft by 180 degrees exists. In this way, the problem in the prior art of being unable to detect phase deviation when the phase of a camshaft is deviated by 180 degrees is solved.