3.519   Artículos

 
en línea
Irene Fernández García, Daniele Novara and Aonghus Mc Nabola    
Pressure Reducing Valves (PRV) have been widely used as a device to control pressure at nodes in water distribution networks and thus reduce leakages. However, an energy dissipation takes place during PRV operation. Thus, micro-hydropower turbines and, m... ver más
Revista: Water    Formato: Electrónico

 
en línea
O. F. Tri Maryana, L. Y. Ginting, F. Pahlawan, M. Y. Darmawan     Pág. 90 - 95
Nowadays, invisibility efforts by scientists and engineers have focused on building a large broadband, multidirectional cloaking device. The device is usually a cloak that works in macroscopic dimensions and for the entire visible spectrum. Addition with... ver más
Revista: Journal of Science and Applicative Technology    Formato: Electrónico

 
en línea
R. Gayathri, Jen-Yi Chang, Chia-Cheng Tsai and Tai-Wen Hsu    
An oscillating water column (OWC) is designed for the extraction and conversion of wave energy into usable electrical power, rather than being a standalone renewable energy source. This review paper presents a comprehensive analysis of the mathematical m... ver más
Revista: Journal of Marine Science and Engineering    Formato: Electrónico

 
en línea
Franz Dolezal, Andreas Reichenauer, Armin Wilfling, Maximilian Neusser and Rok Prislan    
Several studies on the perception of impact sounds question the correlation of standardized approaches with perceived annoyance, while more recent studies have come to inconsistent conclusions. All these studies neglected the aspect of whole-body vibrati... ver más
Revista: Acoustics    Formato: Electrónico

 
en línea
Deli Jiang, Xuegeng Chen, Limin Yan, Jinhao Zhang, Tao Wu and Xuanhe Fu    
Compared with the conventional horizontal conveyor-chain-type plastic-film-picking device, the longitudinal nail-tooth-chain-plate-type plastic-film-picking device developed by our team in the early stage has little tearing effect on the mulching film, a... ver más
Revista: Agriculture    Formato: Electrónico

 
en línea
Xiaoshun Zhao, Zhuangzhuang Hou, Jizong Zhang, Huali Yu, Jianjun Hao and Yuhua Liu    
In order to improve the quality of transplanting devices and solve the problems of the poor effect on soil moisture conservation and more weeds easily growing due to the high mulching-film damage rate with an excessive number of hole openings, we develop... ver más
Revista: Agriculture    Formato: Electrónico

 
en línea
Wendong Zhong, Xuan Zhao, Fei Liu, Hongbin Bai, Wenxue Dong, Hengtong Hu and Xiang Kong    
This paper proposes a solution to the problem of tight population in the filling area of traditional air suction seed metering devices during quinoa sowing, which leads to inaccurate adsorption. The proposed method disperses the population into a stable ... ver más
Revista: Agriculture    Formato: Electrónico

 
en línea
Longyu Fang, Wenwu Yang, Xiwen Luo, Han Guo, Shiyu Song, Qinghai Liu, Haoyang Xie, Weiman Chen, Jianxin Lu, Zhixiang Peng and Guanjiong Li    
Due to factors such as a small amount of fertilizer application during rice topdressing and slow machine speed, the ordinary fertilizer discharge device fails to distribute the fertilizer uniformly and accurately as required, making it difficult to meet ... ver más
Revista: Agriculture    Formato: Electrónico

 
en línea
Chuanxing Du, Weiquan Fang, Dianlei Han, Xuegeng Chen and Xinzhong Wang    
In order to reduce ground drop loss during mechanical pepper picking and improve the net recovery rate, a drum snap finger picking device was designed. The picking device is mainly composed of a picking drum and auxiliary picking components; the picking ... ver más
Revista: Agriculture    Formato: Electrónico

 
en línea
Longfei Zhang, Xiang Lan, Kechuan Wu and Wenzheng Yu    
When subjected to seismic activity, tall isolated buildings with a high aspect ratio are susceptible to overturning as a result of the failure of rubber isolation bearings under tension. In order to address this issue, a guided-rail tension device (GR) h... ver más
Revista: Buildings    Formato: Electrónico

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