Results 181 to 190 of about 514,484 (308)

Answering Mermin's challenge with conservation per no preferred reference frame. [PDF]

Sci Rep, 2020
Stuckey WM, Silberstein M, McDevitt T, Le TD.   +3 more
europepmc   +1 more source

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

Advanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang, Aparajita Pramanik, Sandipan Sen, Shubhashis Dixit, Marcel Muench, R. J. Vikram, Daniel Schliephake, Yolita M. Eggeler, Ankur Chauhan, Martin Heilmaier, Alexander Kauffmann   +10 more
wiley   +1 more source

Accuracy and Feasibility of Intraoperative Computed Tomography Navigation with a Clavicular Reference Frame in Anterior Cervical Spine Surgery: A Preliminary Report. [PDF]

Spine Surg Relat Res
Yamada S, Kanayama S, Kono T, Takenaka S.   +3 more
europepmc   +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

A molecular representation system with a common reference frame for analyzing triterpenoid structural diversity. [PDF]

Plant Commun
Babineau N, Dien Nguyen LT, Mathieu D, McCue C, Schlecht N, Abrahamson T, Hamberger B, Busta L.   +7 more
europepmc   +1 more source

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

Patient-specific dynamic reference frame for navigation-assisted surgery in mandible: a novel noninvasive technical method. [PDF]

Front Bioeng Biotechnol
Wu J, Jiang L, Cheng Y, Zhang W, Zhang J, Gao X, Xu X, Zhang S.   +7 more
europepmc   +1 more source

The Reference Frame

The Reference Frame (TRF) presents a unified geometric algebra framework grounded in five ontological elements — Null, Zero, Epsilon, One, and Infinity — whose multiplicative interactions are governed by an axiomatic Cayley table encoding the boundary conditions of physical reality.
openaire   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Frame of Reference

Dalhousie Medical Journal, 2013
openaire   +3 more sources