Results 231 to 240 of about 1,786,056 (302)

Robust speed control of permanent magnet synchronous motors using model predictive and sliding mode strategies. [PDF]

PLoS One
Meawad M, Ahmed AA, Abdelkader MI, Dessouky YG.   +3 more
europepmc   +1 more source

Robust Spot Melting by 3D Spot Arrangements in Electron Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
This work proposes an approach to replace separately melted contours for spot melting in electron beam powder fusion. Adapting the spot arrangements close to the contour combined with stacking yields a comparable surface quality without the inherent challenges of separate contours, as demonstrated, by electron optical images and roughness measurements.
Tobias Kupfer, Lukas Spano, Sebastian Pohl, Carolin Körner, Matthias Markl   +4 more
wiley   +1 more source

Fluid injection interruption causes temporary changes in local stress field and induced seismicity at Krafla caldera, Iceland. [PDF]

Sci Rep
Glück E, Davoli R, Ágústsdóttir T, Garambois S, Gudnason EÁ, Lavallée Y, Mortensen AK, Scheu B, Vandemeulebrouck J.   +8 more
europepmc   +1 more source

Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing

Advanced Engineering Materials, EarlyView.
The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai, Zeki Ayrildi, Buse Şen, Maik Rajkowski, Mathias Redondo Garcia, Markus Stricker, Guillaume Laplanche   +6 more
wiley   +1 more source

Optimal Design of Electromagnetic Absorber Based on Magnetic Field Directional Consistency. [PDF]

Materials (Basel)
Wang J, Lou J, Yang Q, Li R, Tan M, Yang M, Bao X.   +6 more
europepmc   +1 more source

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

Association between Candida esophagitis and esophagojejunal leakage following total gastrectomy: a retrospective cohort study. [PDF]

Langenbecks Arch Surg
Miratashi Yazdi SA, Afrooghe A, Nazar E, Ahmadi E.   +3 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

A structured analysis of the concept of brain death. [PDF]

Theor Med Bioeth
Beckmann RJ.
europepmc   +1 more source