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Shang-Shu Shih, Yun-Qi Zeng, Hong-Yuan Lee, Marinus L. Otte and Wei-Ta Fang
The treatment efficiency of a wetland constructed for nutrient removal depends strongly on the flow patterns and residence times of the wetland. In this study, a tracer experiment was performed to estimate the residence time distribution and the hydrauli...
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Shang-Shu Shih, Yun-Qi Zeng, Hong-Yuan Lee, Marinus L. Otte, Wei-Ta Fang
Pág. 1 - 16
The treatment efficiency of a wetland constructed for nutrient removal depends strongly on the flow patterns and residence times of the wetland. In this study, a tracer experiment was performed to estimate the residence time distribution and the hydrauli...
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Can Yang, Zhibin Hao, Huaqi Yuan, Xiaodong Bai, Zuohang Su, Hailong Chen and Lars Johanning
A Circulating Water Channel (CWC) is an important piece of equipment for hydrodynamic tests in ocean engineering, the quality of the flow field produced by the CWC directly affects the accuracy of the experimental results. Optimizing the key parts of the...
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Jun-Yong Park, Deok-Young Sohn and Yun-Ho Choi
As the demand for electrical energy increases worldwide, the amounts of harmful gases in the atmosphere, such as carbon dioxide released by burning fossil fuel, are continuously increasing. As a result, the interest in renewable energy resources has been...
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Inês M. Gonçalves, César Rocha, Reinaldo R. Souza, Gonçalo Coutinho, Jose E. Pereira, Ana S. Moita, António L. N. Moreira, Rui Lima and João M. Miranda
In this study, a numerical approach was carried out to analyze the effects of different geometries of microchannel heat sinks on the forced convective heat transfer in single-phase flow. The simulations were performed using the commercially available sof...
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Alessandro Cappiello and Raffaele Tuccillo
The design of organic Rankine cycle (ORC) turbines often requires dealing with transonic flows due to the cycle efficiency requirements and the matching of the temperature profiles with heat sources and sinks, as well as the nature of organic fluids, oft...
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Yudan Gou, Jun Wang, Yang Cheng, Yintao Guo, Xiao Xiao and Shouhuan Zhou
VCSEL (vertical cavity surface emitting laser) is a promising optoelectronic device, but its high manufacturing cost limits its scope of applications. Growing on larger size wafers is an effective way to reduce the cost. However, the growth rate uniformi...
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I. O. Vakulenko
Pág. 81 - 84
Investigations of the substructure of cold-rolled low-carbon steels have shown that after 20 % pressurization the already big volumes of ferrite have periodic dislocation structures similar to dislocation cells. After two to four alternating bending cycl...
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Xiuhua Song, Hong Li, Chao Chen, Huameng Xia, Zhiyang Zhang and Pan Tang
To overcome the problem of poor uniformity of solid-fertilizer-dissolving devices due to lag of fertilizer dissolution, a closed-loop control system based on fuzzy proportional-integral-derivative (PID) was designed and tested. A fertilizer concentration...
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Kewei Yin, Jun Zhang and Shuang Chen
Particle image velocimetry (PIV) is a non-contact, instantaneous and full-flow velocity measurement method based on cross-correlation analysis of particle image. It is widely used in fluid mechanics and aerodynamics. Laser sheet optical system is one of ...
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Yu Fang, Bo Ai, Jing Fang, Wenpeng Xin, Xiangwei Zhao and Guannan Lv
Traditional static flow field visualization methods suffer from many problems, such as a lack of continuity expression in the vector field, uneven distribution of seed points, messy visualization, and time-consuming calculations. In response to these pro...
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Yadong Zhu, Haifeng Jiao, Shihui Wang, Wenbo Zhu, Mengcheng Wang and Songshan Chen
In order to study the pressure pulsation characteristics and structural dynamic response characteristics of a vertical shaft cross-flow pump, this study used a computational fluid dynamics (CFD) numerical simulation method to analyze the pressure pulsati...
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Zonghan Yu, Guoping Huang, Ruilin Wang and Omer Musa
In this work, a new spillage-adaptive bump inlet concept is proposed to widen the speed range for hypersonic air-breathing flight vehicles. Various approaches to improve the inlet start-ability are summarized and compared, among which the bump-inlet patt...
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Rui Quan, Guangyin Liu, Chengji Wang, Wei Zhou, Liang Huang and Yadong Deng
To analyze the thermoelectric power generation for sports utility vehicle (SUV) application, a novel thermoelectric generator (TEG) based on low-temperature Bi2Te3 thermoelectric modules (TEMs) and a chaos-shaped brass heat exchanger is constructed. The ...
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Rui Li, Qibiao Han, Conghui Dong, Xi Nan, Hao Li, Hao Sun, Hui Li, Peng Li and Yawei Hu
The problem of emitter clogging has become the main obstacle restricting the application and promotion of drip irrigation technology. Studying the process of emitter clogging helps improve irrigation efficiency and save water resources. A large number of...
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Li Ding, Yufei Dou, Junying Li, Tan Yao, Aobo Ma, Yechao Yuan, Lele Wang and He Li
In order to solve the problem of inconsistent moisture content in particles during the drying process of tiger nuts (Cyperus esculentus) due to uneven air flow and temperature distribution in the drying chamber, an open-hole corner box was designed based...
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Junyao Zhang, Hao Zhan and Baigang Mi
The submerged inlet exhibits good stealth characteristics and lower drag, but it has a low total pressure recovery coefficient and high distortion rate, which limits its widespread application. This paper proposes a vortex diverter aimed at enhancing the...
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Xin Li, Yang Li, Qiang Li, Xiaozhou Zhang, Xuechen Shi, Yudong Lu, Shaoxiong Zhang and Liting Zhang
Preferential flow is widely developed in varieties of voids (such as macropores and fissures) in loess areas, affecting slope hydrology and stability and even leading to geological disasters. However, the model of seepage evolution with dynamic preferent...
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Shuaijie Jing, Longlong Ren, Yue Zhang, Xiang Han, Ang Gao, Baoyou Liu and Yuepeng Song
In response to the issues of low-velocity zones and non-uniform jet velocity distribution in the airflow field of traditional air-assisted orchard sprayers, an arc-shaped air outlet suitable for axial-flow air-assisted systems is designed. This article e...
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Ivan Kreft, Aleksandra Golob and Mateja Germ
Tartary buckwheat (Fagopyrum tataricum (L.) Gaertn.), originating in the Himalayan area, is cultivated in central Asia and northern, central, and eastern Europe. Tartary buckwheat grain and sprouts are rich in flavonoid metabolites rutin and quercetin. T...
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