3.925   Artículos

 
en línea
Zuhier Alakayleh, Xing Fang and T. Prabhakar Clement    
This study aims at furthering our understanding of the Modified Philip?Dunne Infiltrometer (MPDI), which is used to determine the saturated hydraulic conductivity Ks and the Green?Ampt suction head ? at the wetting front. We have developed a forward-mode... ver más
Revista: Water    Formato: Electrónico

 
en línea
Tienan Li, Xueting Zeng, Cong Chen, Xiangmin Kong, Junlong Zhang, Ying Zhu, Fan Zhang and He Dong    
In this study, an initial water-rights allocation (IWRA) model is proposed for adjusting the traditional initial water-rights empowerment model based on previous water intake permits, with the aim of improving the productivity of water resources under po... ver más
Revista: Water    Formato: Electrónico

 
en línea
M.H.J.P. Gunarathna, Kazuhito Sakai, Tamotsu Nakandakari, Kazuro Momii and M.K.N. Kumari    
Poor data availability on soil hydraulic properties in tropical regions hampers many studies, including crop and environmental modeling. The high cost and effort of measurement and the increasing demand for such data have driven researchers to search for... ver más
Revista: Water    Formato: Electrónico

 
en línea
Rudi Uswarman, Swadexi Istiqphara, Rajif Agung Yunmar, Arkham Zahri Rakhman     Pág. 135 - 143
Sliding Mode Control (SMC) used to control the stability of a quadcopter from disturbances and uncertainties. This technique has two main advantages: the nonlinear dynamics and modelling errors of the quadcopter can be eliminated by switching function an... ver más
Revista: Journal of Science and Applicative Technology    Formato: Electrónico

 
en línea
Andrés Artal-Tur, Vicente J. Pallardó-López, Francisco Requena-Silvente     Pág. pp. 265 - 279
Using newly panel data on visa restrictions for the years 2000 and 2010 in a theory-grounded gravity model, we find a robust, causal negative impact of visa restrictions on international tourist flows. By destination, the detrimental impact of this type ... ver más
Revista: Estudios de Economía    Formato: Electrónico

 
en línea
Yu Chen, Jianwan Ding, Yu Chen and Dong Yan    
The introduction of a dynamic model in robot trajectory tracking control design can significantly improve its trajectory tracking accuracy, but there are many uncertainties in the robot dynamic model which can be dealt with through robust control and ada... ver más
Revista: Applied Sciences    Formato: Electrónico

 
en línea
Shunli Zheng, Jinshou Wang, Haiwei Jiao, Rongke Xu, Yueming Yin, Changtan Fang and Xin Chen    
The Qinghai?Tibet Plateau, abundant in mineral resources, is a treasure trove for geological explorers. However, exploration has been hindered by the presence of dense vegetation, weathering layers, and desert cover, particularly in the North Qaidam regi... ver más
Revista: Applied Sciences    Formato: Electrónico

 
en línea
Qiuyang Dai, Faxing Lu and Junfei Xu    
Geodetic coordinate information and attitude information of the observation platform are necessary for multi-UAV position alignment and target tracking. In a complex sea environment, the navigation equipment of a UAV is susceptible to interference. High-... ver más
Revista: Aerospace    Formato: Electrónico

 
en línea
Kyohei Hanazaki and Wataru Yamazaki    
Busemann?s supersonic biplane airfoil can reduce wave drag through shock interactions at its designed freestream Mach number. However, a choking phenomenon occurs with a decrease in the freestream Mach number, and the drag coefficient increases significa... ver más
Revista: Aerospace    Formato: Electrónico

 
en línea
Filippo Giorcelli, Sergej Antonello Sirigu, Giuseppe Giorgi, Nicolás Faedo, Mauro Bonfanti, Jacopo Ramello, Ermanno Giorcelli and Giuliana Mattiazzo    
Among the challenges generated by the global climate crisis, a significant concern is the constant increase in energy demand. This leads to the need to ensure that any novel energy systems are not only renewable but also reliable in their performance. A ... ver más
Revista: Journal of Marine Science and Engineering    Formato: Electrónico

« Anterior     Página: 1 de 248     Siguiente »