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Jun Li, Linyu Ling, Jun Liao, Zheng Chen and Shibin Luo
During the long-endurance flight of a near-space aerostat, the characteristics of lifting gas diffusion have a great influence on the flight altitude adjustment and station-keeping performance. Thus, in this study, a lifting gas diffusion model and a dyn...
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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...
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Alexey Dorokhov, Otari Didmanidze, Alexander Aksenov, Alexey Sibirev, Maxim Mosyakov, Nikolay Sazonov and Maria Godyaeva
The obtained results of experimental studies on the influence of the physical and mechanical properties of an elastoplastic material (clods of soil and potato tubers) on the factors of its destruction when interacting with an absolutely solid body (separ...
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Ricardo P. Arciniega-Rocha, Vanessa C. Erazo-Chamorro, Paúl D. Rosero-Montalvo and Gyula Szabó
An erroneous squat movement might cause different injuries in amateur athletes who are not experts in workout exercises. Even when personal trainers watch out for the athletes? workout performance, light variations in ankles, knees, and lower back moveme...
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Chankyu Son and Taewoo Kim
A novel actuator disk model (ADM) coupled with lifting-line theory is proposed in this paper. Several virtual planform blades are placed on a disk plane with a constant azimuthal interval, and the lifting-line theory is applied to each blade to predict t...
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Saige Lv and Xiong Hu
In order to solve the problems of subjectivity in the extraction of traditional degradation features and incomplete degradation information contained in a single sensor signal, a performance degradation assessment and abnormal health status detection met...
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Salvatore Corcione, Vincenzo Cusati, Danilo Ciliberti and Fabrizio Nicolosi
This paper deals with the estimation of propulsive effects for a three-lifting surface turboprop aircraft concept, with rear engine installation at the horizontal tail tips, conceived to carry up to 130 passengers. This work is focused on how the propuls...
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Kun Mao, Wuxing Jing, Pan Cheng, Xiaoyan Liu, Yuchen Sun and Meihong Zhang
In this work, the enhanced correction factor technique (ECFT) is modified for a subsonic wing?body interference model, which can consider the forces on both the lifting boxes and the body elements of an idealized airplane, termed the advanced ECFT method...
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Wei Gao, Yishu Liu, Qifu Li and Bei Lu
Using the unsteady vortex lattice method based on the potential flow theory, a rapid modeling approach is developed for the aerodynamic computation of multi-lifting surfaces. Multiple lifting surfaces with different geometric parameters and grid division...
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Zhiying Chang and Tinglin Huang
Water quality deterioration is a major problem faced by reservoirs globally, owing to the inflow of pollution from industrial and municipal activities. Water-lifting aeration is an in situ water quality improvement technology that mixes and oxygenates de...
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Jiahui Qian, Wenjun Xia, Zhangyan Zhao and Faju Qiu
Due to uncontrollable influences of the manufacturing process and different construction environments, there are significant challenges to extracting accurate positioning points for the lifting holes in prefabricated beams. In this study, we propose a tw...
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Lan Li, Yi Jiang, Xiaowei Yang and Jianyong Yao
Uncertainties and disturbances widely exist in electrohydraulic lifting mechanisms of launcher systems, which may worsen the rapid-erection tracking accuracy and even make the system unstable. To deal with the issue, an asymptotic tracking control framew...
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Can Hu, Zhengxin Xu, Xufeng Wang, Long Wang, Jianfei Xing and Wensong Guo
Film mulching agriculture in arid areas is faced with pollution caused by film mulching, and currently mainly adopts the mechanized recycling of mulch film. However, residual mulch film in the soil will bind with soil under the farming environment, which...
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Peilu Li, Chunguang Xu, Qinxue Pan, Yuren Lu and Shuangyi Li
According to the acousto elastic effect, the residual stress on the surface of the rail can be evaluated by measuring the change in the propagation velocity of ultrasonic waves, such as longitudinal critically refracted (LCR) waves on the surface of the ...
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Hosang Hyun, Moonseo Park, Dowan Lee and Jeonghoon Lee
Modular construction, which involves unit production in factories and on-site work, has benefits such as low cost, high quality, and short duration, resulting from the controlled factory environment utilized. An efficient tower crane lifting plan ensures...
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Wei Zhang, Changkun Wu, Pan Zhang and Yanyan Liu
The architecture proposed in this paper is intended for use in designs that require hardware acceleration and optimization.
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Tewodros Assefa, Manoj Jha, Manuel Reyes, Raghavan Srinivasan and Abeyou W. Worqlul
The study was conducted in Lake Tana Basin of Ethiopia to assess potentially irrigable areas for home gardens, water availability, and feasibility of water-lifting technologies. A GIS-based Multi-Criteria Evaluation (MCE) technique was applied to access ...
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Johan Boutet and Grigorios Dimitriadis
A method is presented to model the incompressible, attached, unsteady lift and pitching moment acting on a thin three-dimensional wing in the time domain. The model is based on the combination of Wagner theory and lifting line theory through the unsteady...
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Johan Boutet and Grigorios Dimitriadis
A method is presented to model the incompressible, attached, unsteady lift and pitching moment acting on a thin three-dimensional wing in the time domain. The model is based on the combination of Wagner theory and lifting line theory through the unsteady...
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Shuxun Qiao, Zhongwen Peng, Jinkai Zhang and Lianghai Jin
As a key transportation equipment in the construction of long tunnels with large slope, the material hoisting system plays an important role in the transportation of materials in sloping shafts. This paper proposes a parameterized calibration scheme for ...
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