Abstract: A ceramic tool material, in particular with piezoelectric effect and a preparation method thereof, and a cutting tool. The ceramic tool material includes the following raw materials by weight: 30-70 parts of matrix material, 30-70 parts of piezoelectric material, 5-10 parts of binder, and 10-20 parts of reinforcing phase and can be made into cutting tools. The cutting tool has a piezoelectric effect and excellent mechanical properties and can convert the cutting force signal into the charge signal during machining. By collecting charge signals, a cutting force can be measured and ceramic cutting tool condition can be monitored. Cutting force measurement function and high mechanical properties are integrated. A ceramic tool material with piezoelectric effect can measure the cutting force on the premise by meeting the cutting performance requirements.

Abstract: A coordinated optimization method and system for a hydrogen fuel cell vehicle, a device, and a medium. The method includes: determining a target output voltage and a target output current corresponding to a stack in a hydrogen fuel cell vehicle; determining a sub-stack efficiency score corresponding to one of sub-stacks, and determining a sub-stack stability score corresponding to the sub-stack; obtaining a comprehensive score of the sub-stack efficiency score and the sub-stack stability score, and determining a primary stack and a secondary stack from the sub-stacks according to a comprehensive score result; generating, according to the target output voltage and the target output current, a primary stack output parameter corresponding to the primary stack and a secondary stack output parameter corresponding to the secondary stack; and dynamically adjusting an operating state of the primary stack, and dynamically adjusting an operating state of the secondary stack.

Abstract: A coverage path planning (CPP) method for multiple unmanned aerial vehicles (UAVs) in complex irregular areas includes: acquiring a plurality of regular sub-areas through a multi-strategy recursive optimal decomposition approach to address the problem of excessive decomposition of a concave vertex; and proposing, by considering the efficiency of solving for an access order among different areas, an adaptive large neighborhood search method to quickly acquire the access order among the areas, thereby acquiring a complete coverage planning path. Compared with existing methods, the CPP method can quickly and efficiently achieve coverage of complex irregular areas, improving the efficiency of UAV path planning. In addition, the CPP method has universality and is applicable to any unmanned system operating on a plane, with high practical value.

Abstract: A vapor chamber and a heat dissipating device are provided. The vapor chamber includes a first cover plate defining a first side and a second cover plate defining a second side. Support portions are disposed on the first side of the first cover plate at intervals. The second side of the second cover plate is opposite to the first side of the first cover plate. An edge of the second side is connected with an edge of the first side. The second side of the second cover plate defines capillary grooves. Nanoparticles are accumulated on a groove wall of each of the capillary grooves. The nanoparticles are hydrophilic. Gaps between the nanoparticles are communicated. One end of each of the support portions abuts against the second side. Gaps between the support portions are communicated to form a heat dissipating cavity communicated with the capillary grooves.

Abstract: A control system and method for a hydrogen-powered vehicle-mounted mobile generator is provided. The control system includes a vehicle controller and a hydrogen storage system. The vehicle controller is connected to a first DC/DC converter, and the first DC/DC converter is connected to a PCS. The hydrogen storage system is connected to a hydrogen fuel battery pack, the hydrogen fuel battery pack is connected to a second DC/DC converter, the second DC/DC converter is connected to the PCS and a buffer lithium battery system, respectively, and the PCS is connected to an off-grid switching device. The control system also includes a centralized monitoring system for controlling the charging and discharging of the buffer lithium battery system. The control system achieves the effect of power peak load shifting by controlling the power generation of the hydrogen storage system and the hydrogen fuel battery pack and adjusting the buffer lithium battery system.

Abstract: A nanoscale positioning apparatus with a large stroke and multiple degrees of freedom and a control method thereof are provided. The nanoscale positioning apparatus includes a base, a plurality of parallel branch chain mechanisms and a working table. Each of the parallel branch chain mechanisms includes an electric cylinder, a micro-motion drive mechanism, a laser interferometer, a grating measuring device, a self-locking upper hinge and a self-locking lower hinge. The top of the base is connected to one end of the electric cylinder through the self-locking lower hinge. The other end of the electric cylinder is connected to one end of the micro-motion drive mechanism. The other end of the micro-motion drive mechanism is connected to the bottom of the working table through the self-locking upper hinge. The positioning apparatus has multiple degrees of freedom, and realizes multi-degree-of-freedom arbitrary position adjustment of the working table through parallel branch chain mechanisms.

Abstract: A mounting kit for installing a soundbar in a vehicle includes a tube having an elongated body and at least one chamber having a window. The mounting kit includes at least one bolt having a head and a shank, the head arranged to be coupled to the soundbar and the shank arranged to be received in the at least one chamber and accessible through the window to secure the soundbar to the tube. A first bracket is arranged to be secured to a cross member and first pillar of the vehicle, and a second bracket is arranged to be secured to the cross member and a second pillar of the vehicle, each of the first and second brackets having a cradle arranged to receive an end portion of the tube for installing the tube and attached soundbar in the vehicle.

Abstract: A vapor chamber and a heat dissipating device are provided. The vapor chamber includes a first cover plate defining a first side and a second cover plate defining a second side. Support portions are disposed on the first side of the first cover plate at intervals. The second side of the second cover plate is opposite to the first side of the first cover plate. An edge of the second side is connected with an edge of the first side. The second side of the second cover plate defines capillary grooves. Nanoparticles are accumulated on a groove wall of each of the capillary grooves. The nanoparticles are hydrophilic. Gaps between the nanoparticles are communicated. One end of each of the support portions abuts against the second side. Gaps between the support portions are communicated to form a heat dissipating cavity communicated with the capillary grooves.

Abstract: A ceramic tool material, in particular with piezoelectric effect and a preparation method thereof, and a cutting tool. The ceramic tool material includes the following raw materials by weight: 30-70 parts of matrix material, 30-70 parts of piezoelectric material, 5-10 parts of binder, and 10-20 parts of reinforcing phase and can be made into cutting tools. The cutting tool has a piezoelectric effect and excellent mechanical properties and can convert the cutting force signal into the charge signal during machining. By collecting charge signals, a cutting force can be measured and ceramic cutting tool condition can be monitored. Cutting force measurement function and high mechanical properties are integrated. A ceramic tool material with piezoelectric effect can measure the cutting force on the premise by meeting the cutting performance requirements.

Abstract: A mounting kit for installing a soundbar in a vehicle includes a tube having an elongated body and at least one chamber having a window. The mounting kit includes at least one bolt having a head and a shank, the head arranged to be coupled to the soundbar and the shank arranged to be received in the at least one chamber and accessible through the window to secure the soundbar to the tube. A first bracket is arranged to be secured to a cross member and first pillar of the vehicle, and a second bracket is arranged to be secured to the cross member and a second pillar of the vehicle, each of the first and second brackets having a cradle arranged to receive an end portion of the tube for installing the tube and attached soundbar in the vehicle.

Abstract: A nanoscale positioning apparatus with a large stroke and multiple degrees of freedom and a control method thereof are provided. The nanoscale positioning apparatus includes a base, a plurality of parallel branch chain mechanisms and a working table. Each of the parallel branch chain mechanisms includes an electric cylinder, a micro-motion drive mechanism, a laser interferometer, a grating measuring device, a self-locking upper hinge and a self-locking lower hinge. The top of the base is connected to one end of the electric cylinder through the self-locking lower hinge. The other end of the electric cylinder is connected to one end of the micro-motion drive mechanism. The other end of the micro-motion drive mechanism is connected to the bottom of the working table through the self-locking upper hinge. The positioning apparatus has multiple degrees of freedom, and realizes multi-degree-of-freedom arbitrary position adjustment of the working table through parallel branch chain mechanisms.

Abstract: The present application discloses a method and an apparatus for processing a development machine operation task, a device and a storage medium, which relates to the field of deep learning of artificial intelligence. The specific implementation solution is: receiving a task creating request initiated by a client; generating, according to the task creating request, the development machine operation task; allocating a target graphics processing unit (GPU) required for executing the development machine operation task for the development machine operation task; and sending a development machine operation task request to a master node in cluster nodes, where the task request is used to request executing the development machine operation task on the target GPU.

Abstract: A fixing device for soft tissue includes: a driving device, screw tube and a drive rod. A catheter is connected with the screw tube by screw thread, and a plurality of absorbable screws or titanium screws are provided in the catheter. A screw thread structure is formed on a nailed beam of each of the absorbable screws, and a lead spring is provided on each of the absorbable screws. The plurality of absorbable screws or titanium screws are connected in series and provided in the catheter with a spiral groove in a head-to-nail sequence. When used, by pulling the trigger, the driving rod is rotated driven by the driving device, in such a manner that the absorbable screw or the titanium screw can be shot out of the catheter one by one. The fixing device of the present invention has characteristics of anti-adhesion, convenient and reliable operation.

Abstract: A repair material with multi-purpose for an abdominal wall hernia of the present invention relates to a technical field of medical consumables, which includes technical field of medical consumables. In the MPEG-PLLA copolymer, a molecular weight of MPEG is 2000-10000, and a molecular weight of PLLA is 3000-8000. Compared with PLCL, the repair material of the present invention is significantly improved in water absorption of the absorbable membrane to ameliorate healing effects, and a contact angle is greatly reduced. As a result, postoperative abdominal wall compliance is sufficient, which basically provides no discomfort. Therefore, compared with the PLCL, the present invention is more comfortable. In addition, the repair material of the present invention doesn't need to be heat-fitted, and polypropylene is completely fitted with the absorbable membrane, wherein no obvious boundary face is observed through a microscope, and separation never occurred.

Abstract: A method for treating the lower extremity varicose vein combined ultrasonic wave and microwave is provided. The method includes steps of firstly finding the diseased vein by the ultrasonic imaging equipment; and then directly effecting the microwave treatment catheter/needle on the diseased vein; by the concentric thermal coagulation release effect of the microwave to the tissue, instantly generating high temperature with the certain penetration range in a small range for tissue coagulation; and then gradually making the vascular fibrosis; finally making the completely atresia, thus achieving the therapeutic aim. The present invention uses the ultrasonic imaging microwave treatment technique to treat the lower extremity varicose vein disease.

Abstract: The touch display device includes a cover plate, a touch sensor unit, a display unit and a pressure sensor unit. The touch sensor unit is configured to sense a touch signal applied to the cover plate, the display unit includes a liquid crystal function layer and a backlight module. The pressure sensor unit includes an upper conductive electrode layer and a lower conductive electrode layer, which cooperative forming a capacitance sensor to sense a pressure signal applied to the cover plate. The upper conductive electrode layer is positioned between the liquid crystal function layer and the backlight module. The lower conductive electrode layer is positioned beneath a side of a reflector of the backlight module away from the light guide plate.

Abstract: A method of fabricating a capacitance touch panel module includes forming a plurality of first conductive patterns on a substrate comprising a touching area and a peripheral area along a first orientation, a plurality of second conductive patterns along a second orientation, and a plurality of connecting portions in the touching area; forming a plurality of insulated protrusions, in which each insulated protrusion covering one connecting portion, and forming an insulated frame on the peripheral area; and forming a bridging member on each insulated protrusion.

Abstract: A method of fabricating a capacitance touch panel module includes forming a plurality of first conductive patterns on a substrate comprising a touching area and a peripheral area along a first orientation, a plurality of second conductive patterns along a second orientation, and a plurality of connecting portions in the touching area; forming a plurality of insulated protrusions, in which each insulated protrusion covering one connecting portion, and forming an insulated frame on the peripheral area; and forming a bridging member on each insulated protrusion.

Abstract: A method of fabricating a capacitance touch panel module includes forming a plurality of first conductive patterns on a substrate comprising a touching area and a peripheral area along a first orientation, a plurality of second conductive patterns along a second orientation, and a plurality of connecting portions in the touching area; forming a plurality of insulated protrusions, in which each insulated protrusion covering one connecting portion, and forming an insulated frame on the peripheral area; and forming a bridging member on each insulated protrusion.

Abstract: A method of fabricating a capacitance touch panel module includes forming a plurality of first conductive patterns on a substrate comprising a touching area and a peripheral area along a first orientation, a plurality of second conductive patterns along a second orientation, and a plurality of connecting portions in the touching area; forming a plurality of insulated protrusions, in which each insulated protrusion covering one connecting portion, and forming an insulated frame on the peripheral area; and forming a bridging member on each insulated protrusion.