Abstract: A tunable microwave source based on dual-wavelength lasing of a single optical whispering gallery microcavity includes a dual-wavelength laser having the single optical whispering gallery microcavity for generating dual-wavelength lasing with adjustable spacing, narrow linewidth and low threshold; an optical fiber or waveguide amplifier for optical signal amplification; an optical filter for optical signal and noise filtration; and a high-speed detector for generating a tunable microwave signal with narrow bandwidth. The dual-wavelength laser includes a pump source, the optical whispering gallery microcavity, an optical waveguide or a tapered optical fiber, a microcavity substrate, and a gold electrode pair. The frequency spacing of the dual-wavelength lasing is tuned by adjusting the external voltage of the gold electrode pair.

Abstract: An image guided radiotherapy apparatus and a control method are provided. According to a specific embodiment, the radiotherapy apparatus includes: a treatment unit, which includes a treatment head for generating radiation beam for radiotherapy; an imaging unit for imaging a target area of a patient, wherein the imaging unit is integrated mounted with the treatment head. The radiotherapy apparatus of the present invention can be applicable to both extracorporeal and intraoperative radiotherapy, and has a high radiotherapy accuracy.

Abstract: A hydrogen fuel cell forklift truck with a distributed architecture includes a frame, and, a hydrogen storage system, a fuel cell, a cooling system and an energy storage system arranged on the frame, and the fuel cell is connected with the hydrogen storage system and the energy storage system for charging the energy storage system and providing kinetic energy; the hydrogen storage system is located outside the fuel cell and exposed to the frame for supplying hydrogen to the fuel cell; the cooling system is located outside the fuel cell and connected to the fuel cell for cooling the fuel cell; the energy storage system is located outside the fuel cell and connected to the fuel cell for recovering braking energy and providing kinetic energy together with the fuel cell.

Abstract: The present disclosure relates to a text similarity measurement method and apparatus, device, storage medium, and program product. The method includes: obtaining a first text string and a second text string; constructing a joint probability distribution of the first text string and the second text string, and sampling the joint probability distribution to obtain a sampling string; calculating a distance from the first text string to the sampling string to obtain a first distance matrix, and calculating a distance from the second text string to the sampling string to obtain a second distance matrix; and determining a similarity between the first text string and the second text string based on the first distance matrix and the second distance matrix.

Abstract: The present invention relates to a rock physico-mechanical testing chamber and a three-dimensional multi-field information perception cabin in simulated environments of deep earth, deep space, and deep sea. The testing chamber comprises a cabin body and 6 butting indenters; the 6 butting indenters are pairwise located in an X-axis direction, a Y-axis direction and a Z-axis direction; the 6 butting indenters are respectively mounted in through holes on six faces of the cabin body, inner ends of the butting indenters extend into the cabin body, outer ends of the butting indenters are exposed out of the cabin body, and the butting indenters can axially move relative to the cabin body. The present application can be used to achieve the reservoir rock mechanical behavior testing in real time under high and low environments.

Abstract: The present invention relates to a deep rock in situ environment reconstruction and integrated three-dimensional mechanical-thermo-acousto-seismic-flow testing method, which comprises: preparing a cubic sample; placing the cubic sample in a sample holder; extending the 6 indenters to butt with the sample holder; butting 6 butting indenters with the 6 indenters; butting each of 6 hydraulic actuators with one of the butting indenters, performing stress loading on the cubic sample by the hydraulic actuator, filling a fluid medium into the cubic sample by a percolation medium channel, and dynamically measuring related parameters. The present application can achieve three-way multi-parameter synchronous monitoring and acquisition of deformation, acoustic emission, ultrasonic wave, temperature field, percolation field and heat flow field.

Abstract: The present invention relates to a rock physico-mechanical testing chamber and a three-dimensional multi-field information perception cabin in simulated environments of deep earth, deep space, and deep sea. The testing chamber comprises a cabin body and 6 butting indenters; the 6 butting indenters are pairwise located in an X-axis direction, a Y-axis direction and a Z-axis direction; the 6 butting indenters are respectively mounted in through holes on six faces of the cabin body, inner ends of the butting indenters extend into the cabin body, outer ends of the butting indenters are exposed out of the cabin body, and the butting indenters can axially move relative to the cabin body. The present application can be used to achieve the reservoir rock mechanical behavior testing in real time under high and low environments.

Abstract: The present invention relates to a deep rock in situ environment reconstruction and integrated three-dimensional mechanical-thermo-acousto-seismic-flow testing method, which comprises: preparing a cubic sample; placing the cubic sample in a sample holder; extending the 6 indenters to butt with the sample holder; butting 6 butting indenters with the 6 indenters; butting each of 6 hydraulic actuators with one of the butting indenters, performing stress loading on the cubic sample by the hydraulic actuator, filling a fluid medium into the cubic sample by a percolation medium channel, and dynamically measuring related parameters. The present application can achieve three-way multi-parameter synchronous monitoring and acquisition of deformation, acoustic emission, ultrasonic wave, temperature field, percolation field and heat flow field.

Abstract: The application relates to a rock physico-mechanical testing system in simulated environments of deep earth, deep space, and deep sea, which comprises a three-axis six-direction loading system and an experimental cabin, wherein the three-axis six-direction loading system comprises a loading frame and 6 actuators; an experimental cabin accommodation chamber is arranged in the loading frame, the experimental cabin accommodation chamber is provided with 6 loading ports, and six actuators are each adapted to one of the loading ports; the experimental cabin comprises a cabin body and 6 butting indenters, wherein the 6 butting indenters are respectively arranged in through holes of the cabin body in six directions and can axially move relative to the cabin body; and front ends of the six actuators are each operatively butted with a rear end of one of the butting indenters. The application can be used to achieve the reservoir rock mechanical behavior testing.

Abstract: A display apparatus, a display panel, and a manufacturing method thereof, relate to the field of display technology. The display panel includes a substrate (SU), a transistor layer (TL), a wiring layer (SD), a flat layer (PLN), and a light emitting layer (OL). The transistor layer (TL) is disposed on a side of the substrate (SU) and includes a storage capacitor (C) and a transistor. The material of the first type of transistor includes silicon, and material of the second type of transistor includes a metal oxide. The wiring layer (SD) is disposed on a side of the transistor layer (TL) away from the substrate (SU) and connected to the transistor layer (TL) to form a plurality of pixel circuits. The wiring layer (SD) includes a data line (DAL) and a first power supply line (VDL). The flat layer (PLN) covers the wiring layer (SD).

Abstract: A microwave rock-breaking drilling device includes an integrated drill bit assembly, a microwave generating assembly, and a water-jetting and dust-removing assembly, the integrated drill bit assembly comprises a drill bit body, a cutterhead, and a cutting tooth, the cutterhead and the cutting tooth are provided on the drill bit body; the microwave generating assembly comprises a microwave emitting hole, the microwave emitting hole is located on the drill bit body and is communicated with outside; the water-jetting and dust-removing assembly comprises a water jetting hole, the water jetting hole is located on the drill bit body and is communicated with outside.

Abstract: An image guided radiotherapy apparatus and a control method are provided. According to a specific embodiment, the radiotherapy apparatus includes: a treatment unit, which includes a treatment head for generating radiation beam for radiotherapy; an imaging unit for imaging a target area of a patient, wherein the imaging unit is integrated mounted with the treatment head. The radiotherapy apparatus of the present invention can be applicable to both extracorporeal and intraoperative radiotherapy, and has a high radiotherapy accuracy.

Abstract: A hydrogen fuel cell forklift truck with a distributed architecture includes a frame, and, a hydrogen storage system, a fuel cell, a cooling system and an energy storage system arranged on the frame, and the fuel cell is connected with the hydrogen storage system and the energy storage system for charging the energy storage system and providing kinetic energy; the hydrogen storage system is located outside the fuel cell and exposed to the frame for supplying hydrogen to the fuel cell; the cooling system is located outside the fuel cell and connected to the fuel cell for cooling the fuel cell; the energy storage system is located outside the fuel cell and connected to the fuel cell for recovering braking energy and providing kinetic energy together with the fuel cell.

Abstract: A tunable microwave source based on dual-wavelength lasing of a single optical whispering gallery microcavity includes a dual-wavelength laser having the single optical whispering gallery microcavity for generating dual-wavelength lasing with adjustable spacing, narrow linewidth and low threshold; an optical fiber or waveguide amplifier for optical signal amplification; an optical filter for optical signal and noise filtration; and a high-speed detector for generating a tunable microwave signal with narrow bandwidth. The dual-wavelength laser includes a pump source, the optical whispering gallery microcavity, an optical waveguide or a tapered optical fiber, a microcavity substrate, and a gold electrode pair. The frequency spacing of the dual-wavelength lasing is tuned by adjusting the external voltage of the gold electrode pair.

Abstract: The present disclosure generally relates to a system and a method of assessing the lungs of a patient using acoustic mapping to provide an image of the lung function and modifying therapy applied based on the information gathered.

Abstract: The invention provides a method for monitoring health state of blade root fastener, comprising the following steps: obtaining a sequence of acceleration signals representing the lateral vibration of the nacelle and a sequence of rotational speed signals representing the rotational speed of the rotor; analyzing the sequence of acceleration signals and the sequence of rotational speed signals to determine the amplitude of the nacelle at 2-time-frequncy of the rotational speed of the rotor; and determining the health state of the blade root fastener based on the amplitude. The invention also provides a system for monitoring the health state of the blade root fastener. Through the present invention, the health state of the blade root fastener can be determined with low cost and high precision, thereby improving the operation efficiency and operation safety of the wind turbine.

Abstract: A method for planning a scan path for intraoperative radiation therapy may comprise acquiring a plurality of images of a region of interest through an auxiliary scanning component, establishing a 3D model of the region of interest based on the plurality of images of the region of interest, determining a radiation therapy volume based on the 3D model of the region of interest, and planning a scan path for a radiation therapy component to scan the radiation therapy volume.

Abstract: A bimodal three-dimensional mammary gland imaging quality detecting phantom and method, which includes: a three-dimensional breast appearance phantom structure made of agarose gel containing polyethylene, which is a radiation equivalent material of adipose tissues under X-rays, the relaxation time of hydrogen protons in the agarose gel under a 3T magnetic field is equivalent to that of human adipose tissues, and mammary gland tissue duct phantoms and phantoms of lobules of mammary gland are distributed in the breast appearance phantom structure. The phantom can be used for the image quality detection and analysis of mammary gland imaging by the systems of magnetic resonance and mammography, the material is elastic and can be compressed on a mammography platform for imaging, and the phantom can also be vertically placed in the magnetic resonance mammary gland coil for tomography, so two imaging modes of one phantom are achieved, and the application range is expanded.

Abstract: A smart lighting apparatus has a metal cover, an antenna module, a wireless circuit, a cup body, a light source, and a driver. The metal cover has a central opening, a front and a back side. The antenna module has an antenna area on the metal ring and receives a wireless signal from the antenna area. The wireless circuit is electrically connected to the antenna module.

Abstract: A multi-robotic arm apparatus for intraoperative radiotherapy is provided. The apparatus may comprise a chassis, a main robotic arm mounted on the chassis for moving a radiation head installed at an end thereof, a first robotic arm mounted on the chassis having a first robotic arm end gripper for gripping an imaging device or a treatment applicator; and a second robotic arm mounted on the chassis having a second robotic arm end gripper for gripping a simulation applicator.