Results 41 to 50 of about 3,078,462 (291)
Structure‐Guided Dynamical Mechanics in Bioinspired Double Twisted Laminated Thin Films
Advanced Functional Materials, EarlyView.This work explores a dynamic mechanistic study of crack propagation and puncture testing via real‐time monitoring of crack initiation, propagation, and termination through nature‐inspired single and double twisted architectures fabricated from cellulose nanocrystals.
Justin Brackenridge +4 more
wiley +1 more source
Experimental study of air layer drag reduction of self-propelled model
Zhongguo Jianchuan YanjiuObjectivesThis paper explores the effects of air flow rate and sailing angle on the air layer retention and energy efficiency of the bottom groove of a ship, focusing on a large scale model of a bulk carrier.
Hao WU +3 more
doaj +1 more source
The Effect of Air Drag in Optimal Power-Limited Rendezvous Between Coplanar Low-Earth Orbits [PDF]
Journal of Astronomy and Space Sciences, 1998 The effect of air drag was researched when a low-earth orbit spacecraft using power-limited thruster rendezvoused another low-earth orbit spacecraft. The air density was assumed to decrease exponentially.
Gil-Young Maeng, Kyu-Hong Choi
doaj
Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies
Advanced Functional Materials, EarlyView.Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke +3 more
wiley +1 more source
Numerical Investigation on Air–Water Two-Phase Flow of Jinping-I Spillway Tunnel
Applied Sciences, 2022 Spillway tunnels are key features in the regulation of the water surface of a reservoir and in ensuring the safety of life and properties of people downstream in a high dam project. This research aimed to provide a better understanding of the ventilation
Xiaoqun Wang, Jijian Lian
doaj +1 more source
, 2015 Injection of air could lead to creation of a bubbly mixture or air layer near the surface that can significantly adjust the flow within the turbulent boundary layer. In this paper, stress wave propagation techniques and Split Hopkinson Pressure Bar (SHPB)
Wei YP(魏延鹏) +14 more
core +1 more source
Biodegradable 3D‐Printable and Coatable Antifouling Composites for Marine Applications
Advanced Functional Materials, EarlyView.Marine biofouling damages submerged surfaces and raises greenhouse gas emissions. Biodegradable antifouling biocomposites were developed by hot‐mixing beeswax, Tween 80, and calcium stearate or stearic acid. Adjusting the component ratio enables processing via hot‐pressing, 3D‐printing, or dip‐coating.
Gabriele Corigliano +17 more
wiley +1 more source
A Review of Advanced Air Lubrication Strategies for Resistance Reduction in the Naval Sector
Applied SciencesThis review explores a variety of techniques that utilize air injections beneath a vessel’s hull to reduce drag and consequently improve energy efficiency.
Massimiliano Chillemi +2 more
doaj +1 more source
Effect of seam characteristics on critical Reynolds number in footballs
Mechanical Engineering Journal, 2018 In recent years, the design of footballs, including the number and shape of the panels forming the surface of footballs, has undergone a significant change. However, panels of varied shapes and seams are combined in complex ways to form the surface shape
Kiyoshi NAITO +5 more
doaj +1 more source
Infalling of nano-dust because of air drag on Uranus
Planetary and Space Science, 2023 Uranus and Saturn share similarities in terms of their atmospheric composition, which is primarily made up of hydrogen and helium, as well as their ring systems. Uranus has 13 known rings, which are divided into narrow main rings, dusty rings, and outer rings. Unlike Saturn's broad ring system, Uranus' inner narrow main rings are relatively narrow, and
Hua-Shan Shih, Wing-Huen Ip
openaire +2 more sources