Results 111 to 120 of about 83,697,206 (313)

Fatigue Crack Initiation and Growth in Nanocrystalline Ni at Multiple Length‐Scales

Advanced Engineering Materials, EarlyView.
Overview of miniaturized in situ SEM fatigue setup and resultant fatigue crack growth data for nanocrystalline Ni. The presented study focuses on the analysis of fatigue crack growth rate (FCGR) in focused ion beam‐notched microcantilevers prepared from nanocrystalline (NC) Ni as a model material.
Igor Moravcik, Alexander Jelinek, Markus Alfreider, Jutta Luksch, Anton Hohenwarter, Florian Schaefer, Christian Motz, Daniel Kiener   +7 more
wiley   +1 more source

Le patrimoine gastronomique en Île-de-France, un patrimoine en construction. Retour sur huit années d’expériences [PDF]

, 2019
Depuis l’inscription par l’Unesco en 2010 du repas gastronomique des Français sur la Liste représentative du patrimoine culturel immatériel de l’humanité, la prise en compte du patrimoine dit gastronomique se pose de manière accrue aux services ...
Julie Faure, Faure, Juliette 1937-, Faure, Julie   +2 more
core   +1 more source

Determination of wall width of gob-side entry driving by pre-built concrete wall and stress and deformation characteristics analysis

Meikuang Anquan
Aiming at the problem of determining the wall width of gob-side entry driving by the pre-built concrete wall, taking No.3 coal seam of Jinxing Coal Industry as the research background, the width range of the side wall is determined by theoretical ...
Lining GUO, Tianhe KANG, Jiachang WANG, Jie DENG, Ze WANG   +4 more
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

Numerical study on in-situ mining oil shale by high-temperature steam injection in long-distance horizontal wells

Geomechanics and Geophysics for Geo-Energy and Geo-Resources
This article proposes an in-situ steam-assisted thermal decomposition method for oil shale using long-distance horizontal wells.Firstly, this article establishes a coupled thermal–hydraulic hydrothermal mechanical model considering the anisotropy of oil ...
Siqi Ren, Yichao Jia, Jing Zhao, Dong Yang, Guoying Wang   +4 more
doaj   +1 more source

Experimental on N2 foam fracturing characteristics of tight siltstone in coal measures

Meitan xuebao
Foam fracturing with low water consumption, low reservoir damage and high flowback efficiency is one of the potential technologies for the development of low-pressure, low-permeability and strong water-sensitive coal measures reservoirs.
Hecheng XIAO, Weiguo LIANG, Wenda LI, Zaiyong WANG, Wangyang CHAI   +4 more
doaj   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

Escopo in situ.

Linguamática, 2012
No presente texto, apresentamos uma proposta alternativa para a análise da interação do escopo de expressões quantificadas, sem que as expressões precisem ser movidas. As interpretações são obtidas através de operadores de escopo, expressos por termos-λ puros; são precisos dois pares de operadores: um para a relação entre sujeito e predicado e outro ...
openaire   +2 more sources

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Creep damage model for deep salt rock under temperature and stress coupling effect

Meitan xuebao
As the demand on the construction salt rock storage increases in China, the shallow suitable deposits have been gradually exhausted, as such, the utilization shift from shallow to deep salt deposits is an inevitable trend.
Shengli ZHANG, Suguo XU, Ning XIAO, Jing LI, Chao LI   +4 more
doaj   +1 more source