Results 91 to 100 of about 4,435 (226)

Effect of blade number matching of impeller and diffuser in high-speed rescue pump

Advances in Mechanical Engineering, 2017
In order to meet the requirement of coal mine flooding emergency rescue, a high-power, high-head, and small-volume high-speed wet submersible pump has been designed.
Yuxing Bai, Fanyu Kong, Bin Xia, Yingying Liu   +3 more
doaj   +1 more source

Turbulent snow transport and accumulation: New reduced‐order models and diagnostics

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Our new reduced‐order models of snow particle transport provide high‐fidelity calculations of snow accumulation in turbulent flows at significantly reduced computational costs. Additional accumulation diagnostics from the reduced‐order model predict complex patterns of particle concentration in turbulent boundary layers via coherent flow structures in ...
Nikolas O. Aksamit, Alex P. Encinas‐Bartos, Holt Hancock, Alexander Prokop   +3 more
wiley   +1 more source

Parameter investigation for urban surface‐energy balance: A large‐eddy simulation study

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Large eddy simulation modelling is used to investigate the variation in surface‐energy balance (SEB) across an ensemble of morphometrically identical urban geometries. The geometries have the same plan‐area fraction, vegetated fraction, and frontal‐area index, but are unique in terms of building and green‐space layout.
Christopher E. Wilson, Jonathan K. P. Shonk, Sylvia I. Bohnenstengel, Athanasios Paschalis, Maarten van Reeuwijk   +4 more
wiley   +1 more source

Unsteady Fluid Force on Two Tandem Circular Cylinders Subjected to Two-Phase Cross Flow.

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1992
In this study, we experimentaly examined the characteristics of unsteady fluid forces acting on the downstream cylinder of a two-tandem-cylinder system in the lift direction at P/D=3.0 subjected to two-phase bubble cross flow. The downstream cylinder was oscillated to measure the unsteady fluid force at the frequency (fP) which is a natural frequency ...
Tohru IIJIMA, Fumio HARA, Tomoyuki NOJIMA   +2 more
openaire   +2 more sources

Simulation of Nonpremixed Jet Flame Using Flamelet‐Generated Manifold

Safety Science and Technology, EarlyView.
A flamelet‐generated manifold (FGM) approach is proposed and validated by nonpremixed methane jet flames. The effects of radiation and buoyancy were critically examined, and nonpremixed and premixed tabulation methods were compared, revealing the importance of radiation, buoyancy, and appropriate flamelet prototype in accurate FGM modeling.
Yujie Lin, Weijie Zhang, Zhi Zhang, Ziqi Wang, Peng Cai, Yi Liu, Anfeng Yu   +6 more
wiley   +1 more source

Studying the Impact of the Load Distribution Ratio on the Unsteady Performance of a Dual-Stage Pump-Jet Propulsor

Journal of Marine Science and Engineering
This study investigated the impact of different load distribution ratios between two rotors on the unsteady performance of dual-stage pump-jet propulsors using Computational Fluid Dynamics (CFDs) and experimental methods. The Shear Stress Transport (SST)
Jiansheng Zhang, Ning Liang, Jianwei Zhang, Linlin Cao, Dazhuan Wu, Wei Zhao, Hanqiao Han   +6 more
doaj   +1 more source

Theorizing causality: A qualitative study of xylazine‐related wound diversity and perceived etiology among people who inject drugs

Addiction, EarlyView.
Abstract Background and aims Incidence and severity of opioid‐associated skin and soft‐tissue infections, often requiring intensive and costly medical care, have increased substantially since the emergence of xylazine in the US drug supply. Although progress has been made in clinical and harm reduction recommendations for treating xylazine‐related ...
Danielle German, Kelci Villarroel, Meredith Denney, Adrian Guta, Julie Evans, Jason Bienert, Alex Fidler, Kim Ashburn, Zach Kosinski, Becky L. Genberg   +9 more
wiley   +1 more source

Standardization of In Vitro Evaluation of Extracorporeal Life Support (ECLS) Devices for Research and Development

Artificial Organs, EarlyView.
ABSTRACT Extracorporeal life support (ECLS) technology has witnessed remarkable advancements during the last decades. However, further research and development of devices are required to increase, for example, performance‐efficiency, hemocompatibility, and long‐term stability.
Jutta Arens, Mirko Belliato, Lars Mikael Broman, Johanna C. Clauser, Dirk W. Donker, Roberto Lorusso, Maximilian Malfertheiner, Sasa Rajsic, Justyna Swol, Leen Vercaemst, Lisa Prahl Wittberg, on behalf of the EACTS Innovation Committee, Section CPB, ECLS & MCS, the EuroELSO Innovation Group, Jutta Arens, Mirko Belliato, Lars Mikael Broman, Johanna C. Clauser, Matteo Di Nardo, Dirk Donker, Lorenzo Grazioli, Johannes Heinze, Roberto Lorusso, Maximilian Malfertheiner, Matthias Menne, Sasa Rajsic, Lena Schlotterhose, Niklas Steuer, Justyna Swol, Leen Vercaemst, Jutta Arens. Section Members, Lars Mikael Broman, Johanna C. Clauser, Renard Haumann, Michael Hübler, David Kalfa, Timur Lesbekov, Lisa Prahl Wittberg, Thomas Schlöglhofer, Zuzana Tucanova, André Vincentelli   +41 more
wiley   +1 more source

Air embolism secondary to suspected lymphatic tissue disruption with severe exercise‐induced pulmonary haemorrhage

Equine Veterinary Education, EarlyView.
Summary Air embolism is rare in horses and typically associated with complications following intravenous catheterisation or other medical procedures. Exercise‐induced pulmonary haemorrhage (EIPH) is common in racehorses but not usually associated with air embolism. This report describes a case of air embolism in a 4‐year‐old Thoroughbred with EIPH. The
J. Wittenberg, K. Drozdzewska, K. Landmann, A. Voß, K. Kunze, D. Rutenberg, A. D. Gruber, H. Gehlen   +7 more
wiley   +1 more source

Narcolepsy and rapid eye movement sleep

Journal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Since the first description of narcolepsy at the end of the 19th Century, great progress has been made. The disease is nowadays distinguished as narcolepsy type 1 and type 2. In the 1960s, the discovery of rapid eye movement sleep at sleep onset led to improved understanding of core sleep‐related disease symptoms of the disease (excessive ...
Francesco Biscarini, Lucie Barateau, Fabio Pizza, Giuseppe Plazzi, Yves Dauvilliers   +4 more
wiley   +1 more source