Results 1 to 10 of about 289,315 (267)

Optical Micro-Wire Flow-Velocity Sensor [PDF]

Sensors, 2021
This paper presents a short response time, all-silica, gas-flow-velocity sensor. The active section of the sensor consists of a 16 µm diameter, highly optically absorbing micro-wire, which is heated remotely by a 980 nm light source. The heated microwire
Matej Njegovec, Simon Pevec, Denis Donlagic   +2 more
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Quantum Dot-Based Optical Fiber Sensor for Flow Velocity Sensing at Low Initial Temperatures [PDF]

Sensors
The accurate monitoring of flow velocity is crucial in applications such as blood microcirculation and microfluidic systems. However, the high sensitivity of current hot wire flowmeters is often achieved at the expense of increasing the initial ...
Lei Sun, Yekun Cao, Rui Zhou, Min Li, Xiaoyan Wen, Ming-Yu Li, Shuo Deng, Sisi Liu, Haifei Lu   +8 more
doaj   +2 more sources

Velocity distribution in a turbulent flow [PDF]

E3S Web of Conferences, 2021
The article considers the issue of velocity distribution in a turbulent flow. The logarithmic velocity profile obtained on the basis of semiempirical theory of turbulence by L. Prandtl is given.
Ignatenko Evgenii, Bryanskaya Yuliya
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Temperature surpasses the effects of velocity and turbulence on swimming performance of two invasive non-native fish species [PDF]

Royal Society Open Science, 2021
Global climate change continues to impact fish habitat quality and biodiversity, especially in regard to the dynamics of invasive non-native species.
V. Muhawenimana, J. R. Thomas, C. A. M. E. Wilson, J. Nefjodova, A. C. Chapman, F. C. Williams, D. G. Davies, S. W. Griffiths, J. Cable   +8 more
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Monitoring of Yangtze River Discharge at Datong Hydrometric Station Using Acoustic Tomography Technology

Frontiers in Earth Science, 2021
To continuously monitor the discharge of the Yangtze River, two coastal acoustic tomography (CAT) systems with synchronized transmission were deployed at the Datong hydrometric station of the Yangtze River from July 2018 to January 2021.
Ze-Nan Zhu, Xiao-Hua Zhu, Xiao-Hua Zhu, Xiao-Hua Zhu, Chuanzheng Zhang, Minmo Chen, Hua Zheng, Hua Zheng, Zhensheng Zhang, Jiwen Zhong, Lixin Wei, Qiang Li, Hua Wang, Shuming Li, Arata Kaneko   +14 more
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Seasonal variation in the Chironomidae (Diptera) communities of two Faroese streams

CHIRONOMUS Journal of Chironomidae Research, 2023
Seasonal variation of freshwater invertebrate communities is strongly influenced by abiotic factors including temperature and precipitation which, in turn, are predicted to be affected by climate change. It is important to study these effects, not least
Leivur Janus Hansen, Agnes-Katharina Kreiling, Gísli Már Gíslason   +2 more
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Cavitation–Silt Erosion Behavior and Failure Mechanism of an HVOF-Sprayed WC-Cr₃C₂-Ni Coating for Offshore Hydraulic Machinery

Journal of Marine Science and Engineering, 2022
WC-Cr3C2-Ni coatings are a vital class of hard ceramic/cermet coatings with potential applications as wear-resistant materials. However, their erosion wear behavior in 3.5 wt.% sodium chloride medium (SCM) remains largely unexplored.
Jinran Lin, Sheng Hong, Yuan Zheng, Wei Sun, Zhengwei Zhang, Min Kang, Xiuqing Fu   +6 more
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Effects of Flow Velocity on the Growth and Survival of Haliotis discus hannai Larvae in the Recirculating Upflow System From the Point of Energy Metabolism

Frontiers in Marine Science, 2021
For the abalone Haliotis discus hannai, attachment and metamorphosis are crucial stages in the transition from planktonic to benthic life. Increasing the larval metamorphosis rate by artificially controlling the external environment and simulating ...
Mo Zhang, Mo Zhang, Mo Zhang, Xiaolong Gao, Xiaolong Gao, Xiaolong Gao, Mingxin Lyu, Mingxin Lyu, Mingxin Lyu, Shihui Lin, Shihui Lin, Shihui Lin, Ying Su, Xuan Luo, Xuan Luo, Xuan Luo, Weiwei You, Weiwei You, Weiwei You, Caihuan Ke, Caihuan Ke, Caihuan Ke   +21 more
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Determining Tipping Points and Responses of Macroinvertebrate Traits to Abiotic Factors in Support of River Management

Biology, 2023
Although the trait concept is increasingly used in research, quantitative relations that can support in determining ecological tipping points and serve as a basis for environmental standards are lacking.
Marie Anne Eurie Forio, Peter L. M. Goethals, Koen Lock, Thi Hanh Tien Nguyen, Minar Naomi Damanik-Ambarita, Luis Dominguez-Granda, Olivier Thas   +6 more
doaj   +1 more source

Modeling Bed Shear Stress Distribution in Rectangular Channels Using the Entropic Parameter

Entropy, 2020
The evaluation of bed shear stress distribution is fundamental to predicting the transport of sediments and pollutants in rivers and to designing successful stable open channels. Such distribution cannot be determined easily as it depends on the velocity
Domenica Mirauda, Maria Grazia Russo
doaj   +1 more source