In the process of civil aviation, many safety management concepts and advanced technologies have been used to improve the safe operation level of *** records the huge amount of data of the flight process and is favore...
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How to detect security hazards in special places and achieve automatic detection of the anomalous behavior of people is a challenge for many companies. The traditional approach relies on manual inspections and video s...
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Aircraft are subject to various hostile environment during maneuvers and are required to have structural survivability from weapon threats. The hydrodynamic ram event, which occurs when a ballistic projectile penetrat...
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Background: The novel coronavirus pandemic has not only affected people's health. The pandemic has also affected their social life and work. For all the reasons mentioned, international trade has suffered and is s...
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Systems in commercial utility facilities and advanced manufacturing industries suffer from gradual deterioration due to environmental factors, operational stresses, and aging effects. As failures caused by these degra...
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The purpose of this work is to discuss the problem of the low heat dissipation efficiency of the control equipment in rail transit trains. The research aim was to develop a power module for the train control apparatus...
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The aerial recovery sub-stage uses the launch vehicle reuse is one of the rocket recovery methods, compared with the traditional one-time launch vehicle measurement and control, the aerial recovery sub-stage rocket ha...
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This report is the first to demonstrate cryogenic 3D flash memory of 7-bits per cell with the recovery annealing applied repeatedly. We combined 77 K cryogenic operation and epi-Si channel to improve the data retentio...
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With the increasing concern of energy crisis and global warming,the whole globe is in an urgent need to develop clean energy that comes from renewable sources and does not harm the environment to fulfill the carbon ne...
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With the increasing concern of energy crisis and global warming,the whole globe is in an urgent need to develop clean energy that comes from renewable sources and does not harm the environment to fulfill the carbon neutralization and green earth *** is the most abundant substance on earth and has been historically used as the major energy carriers in watermill,water wheel,*** electricity generation is another emerging technology that can convert lowgrade energy in the widely-accessible moisture to electricity simply by the integration of moisture,electrodes,deliberatelydesigned hygroscopic *** research on moisture electricity generators(MEGs)led to the creation of a series of selfpowered sensors and in some occasions they have replaced conventional batteries to power miniaturized *** this review,the basic mechanisms of MEGs are firstly clarified,three categories of them,i.e.,gradient structure,homogeneous structure,and heterogeneous structure depending on the structure of hygroscopic films,are then ***,recent advances in the fabrication,characteristics,performance of MEGs are summarized,MEGs with continuous or transient output that could be applied in self-powered sensors and power sources are ***,some remaining challenges and our perspectives on MEGs are highlighted.
Based on the public materials, this paper collects the overall parameters of SpaceX's Super Heavy Starship launch vehicle, estimates some of the undisclosed parameters required for the calculation in order to meet...
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