Results 41 to 50 of about 42,280 (306)

Environments and lifting mechanisms of cold-frontal convective cells during the warm season in Germany [PDF]

Weather and Climate Dynamics
Convection often initiates in proximity to cold fronts during the warm season, but how various processes favour convective initiation at different regions relative to the front is still not well-understood.
G. Pacey, G. Pacey, S. Pfahl, L. Schielicke   +3 more
doaj   +1 more source

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

Advanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb, Zachary T. Kloenne, Samuel R. Rogers, Chi Hang Dominik Kwok, Mark C. Hardy, Michele S. Conroy, David Dye   +6 more
wiley   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

Advanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich, Lenka Kunčická, Pavel Czernek, Zifan Wang   +3 more
wiley   +1 more source

The dynamic response characteristics of “ChangJiangKou II” shipwreck salvaging operation: Physical and numerical experiments

Journal of Ocean Engineering and Science
In this paper, the dynamic response characteristics of an ancient shipwreck “ChangJiangKou II” salvaging system during its salvaging operation, including off-bottom, lifting and off-surface stage, are numerically and experimentally investigated. In order
Dongrong Zhou, Yiting Wang, Shangzhe Xin, Lei Wang, Tong Ge   +4 more
doaj   +1 more source

Circular cylindrical shell flutter analysis based on the unsteady lifting surface theory and experimental verification

Nihon Kikai Gakkai ronbunshu, 2015
This paper deals with flutter analysis of a circular cylindrical shell based on the non-planar unsteady lifting surface theory. In this study, experiments are conducted with a cantilevered circular cylindrical shell subjected to inner fluid flow, and ...
Hiroya ITOH, Kensuke HARA, Masahiro WATANABE   +2 more
doaj   +1 more source

Slip Localization Intensification Mediated by Grain Boundary Sliding in a Polycrystalline Nickel‐Based Superalloy

Advanced Engineering Materials, EarlyView.
The temperature dependence of fatigue behavior in nickel‐based superalloys is investigated through high‐resolution measurements of plastic localization. While increasing temperature reduces localization and enhances fatigue performance in René 88DT, Inconel 718 exhibits a sharp degradation at intermediate temperature due to intensified slip ...
M. Calvat, D. Anjaria, I. Woo, C. Bean, D. Texier, J. C. Stinville   +5 more
wiley   +1 more source

Lifting wavelet for three-dimensional surface analysis

, 2001
It is recognised that surface topography is the one of the most important factors affecting the functional performance of components. It is also reported that the wear rate of surfaces in operational service is determined by roughness, waviness and the ...
X.Q Jiang, Stout, K. J., L Blunt, Blunt, Liam, K.J Stout, Jiang, Xiang, Stout, K.J., Jiang, X. Q., Blunt, L.   +8 more
core   +1 more source

Flutter of a rectangular cylindrical shell subjected to inner fluid flow

Nihon Kikai Gakkai ronbunshu, 2015
This paper deals with flutter experiments and analysis of a rectangular cylindrical shell based on the non-planar unsteady lifting surface theory. In this study, experiments are conducted with a cantilevered rectangular cylindrical shell subjected to ...
Hiroya ITOH, Kensuke HARA, Masahiro WATANABE   +2 more
doaj   +1 more source

Aeroelastic Divergence Analysis by Introducing Inertia Relief Method

Hangkong gongcheng jinzhan, 2021
Lifting surface divergence plays an important role in static aero-elasticity analysis.Traditional static aeroelasticity analysis of airplane lifting surface makes the root part fixed without considering the influence of rigid mode. According to AC 25.629-
ZHANG Fei, CHENG Fang
doaj   +1 more source

Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators

Advanced Engineering Materials, EarlyView.
A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad, Aleksander Kostka, Gowtham Arivanandhan, Yujiao Li, Alan Savan, Manfred Kohl, Alfred Ludwig   +6 more
wiley   +1 more source