Results 121 to 130 of about 71,336 (264)

Numerical Insights Into the Resistance Reduction Mechanisms of Forward Tapered Transoms in High‐Speed Catamaran: A Computational Fluid Dynamics‐Based Study

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT This study investigates the hydrodynamic influence of forward transom tapering on a displacement catamaran hull using computational fluid dynamics (CFD) simulations. Five taper configurations ranging from a vertical transom base design to a fully tapered stern (1.00B) were evaluated over a wide Froude number range (Fr = .3 to 1.0).
Chalermkiat Nuchturee, Chairat Napasaksri, Ramil Kesvarakul, Sarawuth Srinakaew   +3 more
wiley   +1 more source

Stance and Gait Analysis of Apollo Astronauts on the Moon

Muscle &Nerve, EarlyView.
ABSTRACT Introduction/Aim As humans return to the Moon, safe efficient ambulation and fall prevention on the lunar surface are key concerns. The analysis of gait from archived Apollo mission video footage is now possible with pose estimation video analysis software.
Faye Y. Chiou‐Tan, Conrad Li, Jason P. Caffrey, Millard Reschke, Timothy R. Macaulay   +4 more
wiley   +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

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

Progress of MXenes‐based responsive materials for soft sensors and actuators

Responsive Materials, EarlyView.
MXene, a promising 2D material, excels at mimicking human sensing and feedback system, making it ideal for intelligent robots. This review first covers its structure, properties, and synthesis. It then summarizes recent MXene‐based sensors and actuator.
Peidi Zhou, Wenjie Yang, Yihan Qiu, Meiping Xu, Leiting Liao, Xinlei Gong, Chan Zheng, Minghua You, Cheng Zhang, Huamin Chen, Mingcen Weng   +10 more
wiley   +1 more source

Advances in research on impulse hydro‐turbine technology

River, EarlyView.
Abstract To accelerate the development of impulse hydro‐turbines and support the efficient utilization of hydropower resources in Southwest China, this paper examines the background, historical development, and research progress of impulse hydro‐turbines.
Xiaochao Li, Ye Zhou, Hao Zhang, Guanglei Xiao, Yanwei Li, Zhongxin Gao, Zhiyang Lu, Shangqi Li   +7 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

Mobilisation Alarm Use in Hospitals and Alignment With Person‐Centred Practice: A Qualitative Study

Journal of Advanced Nursing, EarlyView.
ABSTRACT Aim To explore why and how staff use alarms for falls prevention in hospital and their alignment to person‐centred practice. Design Qualitative interpretive design. Methods One hundred focus groups and 25 interviews across 10 health services were completed between October 2022 and September 2024.
Kelly Stephen, Dai Pu, Jennifer Weller‐Newton, Terry P. Haines   +3 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

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