Water stress presents a wide range of concerns that can jeopardize international security.Neo-Malthusians scholars constantly warn of water conflicts, while institutionalists argue that possible water conflicts are the result of poor water distribution and can therefore be prevented by stronger institutions.Prima Outdoor Arm Chair with Cushion (Set
Jerk is the time rate of acceleration and mainly represents the nonstationary component in high frequency band of the earthquake wave.The study on jerk and its response spectra can enhance the recognition of the nonstationary ground motion.The mechanical meaning and research value of jerk are described.Jerk is recommended to be solved by establishi
Herein, ceramic-reinforced CoCrNiMoxCB high-entropy alloy coatings were prepared by laser cladding, and the synergistic improvement of wear and corrosion resistance was realized.The effects of molybdenum on the phases, microstructures, and chemical compositions of the coatings were also studied.Wear mechanisms changed from adhesive wear to abrasive
Hard X-ray (HXR) observations are crucial for understanding the initiation and evolution of solar eruptive events, as they provide a key signature of flare-accelerated electrons and heated plasma.The potential of high-cadence HXR imaging for deciphering the erupting structure, however, has not received adequate attention in an era of extreme ultrav
Gear vibration and noise are important parameters that affect the transmission performance.The vibration and noise control of the gear transmission system has become a very important field.Presently, the main methods of vibration control of the Wade gear transmission system are increasing coincidence, shape modification, displacement, damping, etc.