Purpose–The paper aims to clarify the operation rationality of high speed trains(HSTs)under tunnel condition with the speed of 400 km/h through representative aerodynamic factors including running drag,eardrum comfor...
supported by the National Key R&D Program of China(Grant No.2021YFF0603802);the National Natural Science Foundation of China(Grant No.61905231);the State Administration for Market Regulation(Grant No.CXTD202301);the Innovation Program for Quantum Science and Technology(Grant No.2021ZD0300902)。
Two^(87)Sr optical lattice clocks(OLCs)are being developed and operated at the National Institute of Metrology(NIM),located on different campuses that are 40km apart.In order to compare the optical frequencies of thes...
风场预报是智能网格预报的重要支撑,提高风场预报准确率,能够为风能预报提供核心保障。在综合评估2023年汛期CMA-MESO 3 km(China Meteorological Administration Mesoscale Model at 3 km resolution)模式在山西逐小时10 m风预报能力...