Abstract: The present disclosure provides a fuel cell performance optimization methodology combined with simulation method and experimental method, comprising: with the mutual coupling of simulation and experiment, a fuel cell simulation model is established, a bench test is performed, the model is calibrated, the operating conditions are refined and simulation and analysis are performed, and the optimal operating condition is obtained to perform the bench test, the optimal actual output voltage of the fuel cell is obtained, and the output voltage optimization result of the fuel cell are verified. The present disclosure not only reduces the number of experiments and experiment cycles in the process of fuel cell operation condition optimization, but also improves the reliability and accuracy of simulation results, and better plays the role of simulation in optimization.

Abstract: A method for detecting an axial pipe stress based on the orthogonal alternating electromagnetism (OAE) includes: acquiring a material of the pipe to be detected and determining an excitation intensity corresponding to the pipe to be detected according to the material of the pipe to be detected; generating an alternating magnetic field on the surface of the pipe to be detected by a high-frequency alternating current output by an OAE stress probe in a system for detecting the axial pipe stress based on the OAE according to the excitation intensity; magnetizing the surface of the pipe to be detected according to the alternating magnetic field; and when the variation range of the magnetized alternating magnetic field is smaller than the set range, determining the axial pipe stress of the pipe to be detected by the system for detecting the axial pipe stress based on the OAE.

Abstract: Provided are a system and a method for impact testing and monitoring of a high-energy flexible net. The system includes a vertical impact testing unit, a slope impact testing unit, an impact simulation unit, and an impact monitoring unit. The vertical impact testing unit includes a vertically positioned gravity wall. The slope impact testing unit includes a wall slope positioned perpendicularly to a second side of the gravity wall. A first side of the gravity wall and a slope surface of the wall slope are securely provided with a flexible net, respectively. The impact simulation unit includes an impact assembly and a lifting assembly. The impact monitoring unit is configured to monitor a deformation result and an internal force change result of the flexible net.

Abstract: This disclosure provides a data processing method, including: receiving, by a first computing device, a first packet sent by a second computing device, where the first computing device is configured to assist the second computing device in performing service processing, the first computing device is a computing device in a heterogeneous resource pool, the first computing device communicates with the second computing device through a network, the heterogeneous resource pool includes at least one first computing device, and the first packet includes an instruction used to request the first computing device to process to-be-processed data; processing, by the first computing device, the to-be-processed data based on the instruction; and sending, by the first computing device, a second packet to the second computing device, where the second packet includes a processing result of the to-be-processed data.

Abstract: Disclosed are a semiconductor device, a preparation method therefor and electrical equipment thereof. The semiconductor device includes: a silicon substrate on which an emitter, a gate, and a collector are formed; a bootstrap electrode formed on the silicon substrate; and an insulating layer, formed on the silicon substrate and disposed between the emitter and the bootstrap electrode. A bootstrap capacitor is formed between the emitter and the bootstrap electrode.

Abstract: The present disclosure provides a fuel cell performance optimization methodology combined with simulation method and experimental method, comprising: with the mutual coupling of simulation and experiment, a fuel cell simulation model is established, a bench test is performed, the model is calibrated, the operating conditions are refined and simulation and analysis are performed, and the optimal operating condition is obtained to perform the bench test, the optimal actual output voltage of the fuel cell is obtained, and the output voltage optimization result of the fuel cell are verified. The present disclosure not only reduces the number of experiments and experiment cycles in the process of fuel cell operation condition optimization, but also improves the reliability and accuracy of simulation results, and better plays the role of simulation in optimization.

Abstract: Provided are a trench gate IGBT and a device. The trench gate IGBT includes an emitting electrode, a p well region, a gate, a gate oxide layer, a drift region and a back collecting electrode. The gate is located in a trench; the gate is isolated from the emitting electrode, the p well region and the drift region by the gate oxide layer; the trench is disposed inside a substrate; and recesses are provided at the boundary of the trench and the drift region. During switching on and off the trench gate IGBT, an interface between the drift region and a side surface of the trench is provided with recess gate oxide layers, so that electron charges can be restrained and accumulated, and improving the conduction capacity.

Abstract: In some embodiments, a method comprises: determining, by a computing device, a potential for tasks of one or more applications not to be completed at a given time, the one or more applications being hosted on remote computing devices; initiating, by the computing device, a call to one or more application programmable interfaces (APIs) of the remote computing devices to retrieve data about the one or more tasks from the one or more applications, the tasks being generated by the one or more applications and including a time of completion being that of the given time; and initiating, by the computing device, an update to at least one of the one or more applications using the retrieved data, so that at least one of the generated tasks is completed before or at the given time.

Abstract: The present disclosure relates to a method for monitoring and alarming hydrogen leakage of a fuel-cell vehicle and a system thereof. The method comprises the steps of: acquiring the current hydrogen concentration of a fuel-cell vehicle; judging whether the current hydrogen concentration is 0, if not, acquiring the measured hydrogen concentration, the hydrogen pressure drop value and the normal pressure range generated when the current hydrogen concentration of the fuel-cell vehicle is 0; judging whether the hydrogen pressure drop value exceeds the normal pressure range, if so, determining the predicted hydrogen concentration according to the measured hydrogen concentration and the hydrogen pressure drop value; judging whether the predicted hydrogen concentration exceeds the hydrogen leakage alarm threshold, and if not, determining the hydrogen leakage and issuing an alarm.

Abstract: Disclosed are a semiconductor device, a preparation method therefor and electrical equipment thereof. The semiconductor device includes: a silicon substrate on which an emitter, a gate, and a collector are formed; a bootstrap electrode formed on the silicon substrate; and an insulating layer, formed on the silicon substrate and disposed between the emitter and the bootstrap electrode. A bootstrap capacitor is formed between the emitter and the bootstrap electrode.

Abstract: Provided are a trench gate IGBT and a device. The trench gate IGBT includes an emitting electrode, a p well region, a gate, a gate oxide layer, a drift region and a back collecting electrode. The gate is located in a trench; the gate is isolated from the emitting electrode, the p well region and the drift region by the gate oxide layer; the trench is disposed inside a substrate; and recesses are provided at the boundary of the trench and the drift region. During switching on and off the trench gate IGBT, an interface between the drift region and a side surface of the trench is provided with recess gate oxide layers, so that electron charges can be restrained and accumulated, and improving the conduction capacity.

Abstract: This disclosure provides a data processing method, including: receiving, by a first computing device, a first packet sent by a second computing device, where the first computing device is configured to assist the second computing device in performing service processing, the first computing device is a computing device in a heterogeneous resource pool, the first computing device communicates with the second computing device through a network, the heterogeneous resource pool includes at least one first computing device, and the first packet includes an instruction used to request the first computing device to process to-be-processed data; processing, by the first computing device, the to-be-processed data based on the instruction; and sending, by the first computing device, a second packet to the second computing device, where the second packet includes a processing result of the to-be-processed data.

Abstract: A mounting apparatus for holding a storage device defining at least a mounting hole in a bottom thereof, the mounting apparatus comprises a bracket and a locking member. A support plate is arranged inward from a sidewall of the bracket. The storage device is disposed on the support plate. The locking member is movably connected to the bracket, and comprises at least one locking portion. The at least one locking portion is inserted in the at least one mounting hole to hold the storage device.

Abstract: A mounting apparatus is provided for mounting a data storage device to a drive bracket. The data storage device is locked to the drive bracket via a locking module. The locking module includes a housing member attached to the drive bracket, and a pushing member, a locking member, and a releasing member that are attached to the housing member. The pushing member is driven by a pushing action of the data storage device for releasing the locking member in a first direction for locking the data storage device. The locking member is driven by the releasing member for unlocking the data storage device in an opposite direction with respect to the first direction.

Abstract: A mounting apparatus is provided for mounting a data storage device to a drive bracket. The data storage device is locked to the drive bracket via a locking module. The locking module includes a housing member attached to the drive bracket, and a pushing member, a locking member, and a releasing member that are attached to the housing member. The pushing member is driven by a pushing action of the data storage device for releasing the locking member in a first direction for locking the data storage device. The locking member is driven by the releasing member for unlocking the data storage device in an opposite direction with respect to the first direction.

Abstract: A mounting apparatus for holding a storage device defining at least a mounting hole in a bottom thereof, the mounting apparatus comprises a bracket and a locking member. A support plate is arranged inward from a sidewall of the bracket. The storage device is disposed on the support plate. The locking member is movably connected to the bracket, and comprises at least one locking portion. The at least one locking portion is inserted in the at least one mounting hole to hold the storage device.