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Nanxuan Qiao, Tielin Ma, Jingcheng Fu, Ligang Zhang, Xiangsheng Wang and Pu Xue
The rising interest in the evolvability of electric vertical takeoff and landing (eVTOL) promises substantial potential in the field of urban air mobility (UAM). Challenges in energy storage density and geometry restriction both emphasize the propeller e...
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Jiucai Jin, Deqing Liu, Dong Wang and Yi Ma
Trajectory tracking is a basis of motion control for Unmanned Surface Vehicles (USVs), which has been researched well for common USVs. The twin-propeller and twin-hull USV (TPTH-USV) is a special vehicle for applications due to its good stability and hig...
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Jiansheng Wu, Yun Qian, Yuan Wang and Na Wang
During the COVID-19 lockdown in Wuhan, transportation, industrial production and other human activities declined significantly, as did the NO2 concentration. In order to assess the relative contributions of different factors to reductions in air pollutan...
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Sara Mira,Alberto Arnal,Félix Pérez-García
Pág. e002
Aim of study: The purpose was to determine the type of dormancy and the optimal germination conditions of Phillyrea angustifolia (Oleaceae) seeds.Area of study: Germination requirements of P. angustifolia seeds collected from wild plants growing in the p...
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Madhu Errampalli, Ravinder Kayitha
Pág. 548 - 557
The population of Port Blair has steadily grown at about 6.5% per annum but it fell down to 0.62% per annum in the last decade. However the population of vehicles has increased at an average of 12% per annum and road infrastructure has not been able to k...
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A. A. Bosov,M. B. Kurhan,D. M. Kurhan,S. Y. Baydak
Pág. 106 - 115
The technique which allows to receive at level of engineering calculations preliminary results of economic efficiency from elimination of restrictions for speed movement of trains is resulted.
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I. P. Korzhenevich,M. B. Kurgan,N. P. Khmelevs?ka
Pág. 116 - 123
The greatest number of restrictions is related to the parameters and condition of curvilinear track sections. The technique for determination of cost of reorganization of curves at introduction of high-speed traffic for difficult sections of the track pl...
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M. B. Kurgan,O. S. Chernyishova
Pág. 114 - 116
Research results of losses of the railways, related to weights of cargo trains, at occurrence of traffic speed restrictions on abrupt long up-grades are presented.
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M. B. Kurhan,N. A. Muhina,O. S. Chernyshova
Pág. 121 - 124
The mathematical model for prediction of change of running time and mechanical work of the locomotive traction force at occurrence of restrictions of the train traffic speed is suggested.
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