Results 51 to 60 of about 147 (130)

Numerical study on the physics of flow past submerged vane in curved channel and curved channel whit lateral intake [PDF]

مهندسی منابع آب, 2020
In this paper, the physics of passed flow on submerged vane that placed at the bottom of different kinds of channels is studied. Also it presente the effects of: changing angle’s vane, the distance of vane from wall and the situation of vane in front of ...
fatemeh avazpoor, keivan tavakoli, hosein montaseri   +2 more
doaj  

Airborne DNA and Spider Webs Outperform Other eDNA Sources for Monitoring Terrestrial Vertebrates

Molecular Ecology Resources, Volume 26, Issue 1, January 2026.
ABSTRACT Understanding the strengths and limitations of different environmental DNA substrates is essential for optimising terrestrial vertebrate surveys and monitoring. However, the performance of newly explored substrates (airborne eDNA, vegetation swabs, spiderwebs) compared to longstanding eDNA sources (water and soil) is uncertain.
Joshua P. Newton, Morten E. Allentoft, Philip W. Bateman, Paul Nevill   +3 more
wiley   +1 more source

Eu3+ as a structural probe in yttrium silicates through photoluminescence emission spectra

Journal of the American Ceramic Society, Volume 109, Issue 1, January 2026.
Abstract This work presents the first steps in using Eu3+ as a structural probe using photoluminescence (PL) emission spectra. The sol–gel synthesis of four Eu3+‐doped powders encompassing seven phases of the yttrium silicate phase system is detailed.
Joseph Counte, Silvia Araguas‐Rodriguez, Buhao Zhang, Tanvir Hussain, Jörg P. Feist   +4 more
wiley   +1 more source

Experimental study on scour around beveled submerged vanes

International Journal of Sediment Research
Submerged vanes are an effective approach to sediment management in river systems. Nowadays, submerged vanes are increasingly utilized in contemporary river engineering due to their convenient and cost-effective installation, which distinguishes them ...
Anirban Mandal, Zulfequar Ahmad, Erik Mosselman   +2 more
doaj   +1 more source

From Complexity to Efficiency: Sensitivity‐Based Parameter Reduction in OWC Turbine Optimization

International Journal of Energy Research, Volume 2026, Issue 1, 2026.
This work presents a multiparametric optimization of a counter‐rotating axial impulse turbine for oscillating water column (OWC) devices. Given the high computational cost required for optimizing numerous geometric parameters, a sensitivity analysis based on the Morris Method has been employed to reveal the most important ones prior to the optimization
Aitor Vega-Valladares, Manuel Garcia-Diaz, Bruno Pereiras, Manabu Takao, Mohammadmahdi Abdollahzadehsangroudi   +4 more
wiley   +1 more source

The Application of Numerical Method and SKM Quasi-Two-Dimensional Model to Estimate the Shear Stress around a Cylindrical Pier with Submerged Vanes [PDF]

مهندسی منابع آب, 2019
Investigation of the shear stress to estimate the scour hole around bridge piers is of utmost importance, but a review of the literature shows that the study of this factor, around protected piers by various methods of scour control has not been studied ...
s a, d f, h a, a a
doaj  

Investigation on the Energy Loss Characteristics in Multiphase Pump Based on Entropy Production Theory

Science and Technology of Nuclear Installations, Volume 2026, Issue 1, 2026.
The tip clearance is an essential structure in multiphase pumps, and the vortex flow caused by the leakage at the tip of the blade disturbs the internal flow field of the pump, leading to energy losses, which in turn weaken the pump’s pressure‐boosting performance and reduce its work output efficiency. To clarify the energy loss behavior at various tip
Zongku Liu, Guohong Wu, Jiaxiang Zhang, Jianglong Dou, Ce An, Bo Wang, Guangtai Shi, Mohammad Rezwan Habib   +7 more
wiley   +1 more source

Effects of curvature submerge vane in efficiency of vortex settling basin [PDF]

Journal of Applied Research in Water and Wastewater, 2014
In this century due to population growth, the use of river water has become more complicated. Since most rivers pass across loose and erodible areas, they always act as the most important factor of transferring eroded materials from the solid crust of ...
Amin Hajiahmadi, Mojtaba Saneie, Mehdi Azhdari Moghadam   +2 more
doaj  

Hydraulic Optimization of River Sub-Channels for Sediment Reduction and Pump Protection under Low Discharge Conditions: A Literature Review [PDF]

EPJ Web of Conferences
Sediment-laden flow remains a major source of hydraulic efficiency reduction, deposition, clogging and wear in pumps, intakes, forebays and turbomachinery, especially during low flow conditions, in which uneven flow structures and local sediment ...
Abdulrazzaq Noor Ali, Hilo Ali N.
doaj   +1 more source

Increasing Streambed Permeability Around Vertical Steps to Enhance Hyporheic Exchange

Water Resources Research, Volume 61, Issue 12, December 2025.
Abstract In‐stream structures can be used to promote hyporheic exchange, that is, the exchange of water and solutes between the stream and the underlying streambed. The modification of streambed permeability around these structures has been proposed to enhance their effectiveness in promoting hyporheic exchange.
M. Tajari, M. H. Omid, A. A. Dehghani, A. N. Ghameshlou, F. Boano   +4 more
wiley   +1 more source