Results 41 to 50 of about 2,150,003 (345)

Understanding Peripheral Dizziness and Evaluating Suitability for Aviation Work

Hanggong uju uihakoeji, 2021
Aircraft accidents caused by dizziness of aviation workers are so common that they account for 5% to 10% of the total, and in most cases, have fatal consequences. Therefore, it is essential to diagnose and treat the dizziness of aviation workers properly.
Hyun Ji Kim, Kyu-Sung Kim, Young Hyo Kim
doaj   +1 more source

Influence of Temperature on Scratch and Wear Properties of Technical Thermoplastics: Implications for Material Selection

Advanced Engineering Materials, EarlyView.
The share of technical thermoplastics is expected to grow further in the e‐mobility segment. In this study, a detailed temperature‐based tribological characterization of technical thermoplastics is performed. The tribological properties are discussed in terms of the dynamic mechanical properties of polymers at different ambient temperatures. A proof of
Harsha Raghuram, Thomas Koch, Vasiliki-Maria Archodoulaki   +2 more
wiley   +1 more source

Editorial for Vol. 32, No. 3

Hanggong uju uihakoeji, 2022
In Vol. 32, No. 3, our journal prepared 1 original article, 2 review articles, and 1 brief report. Space science need to be considered not only from the point of intellectual curiosity, but also from the profit.
Juwon Lim
doaj   +1 more source

Quality Enhancement of Laser Powder‐Bed Fusion Parts by Acoustically Assisted Additive Manufacturing by Laser Powder‐Bed Fusion and its Application to Lattice Structures

Advanced Engineering Materials, EarlyView.
Additive manufacturing technologies like laser powder‐bed fusion offer great design freedom and individualization of products down to a batch size of one. However, parts fabricated with this technology suffer from poor quality. Acoustic assistance during the build process can minimize these drawbacks.
Oliver Maurer, Dirk Bähre
wiley   +1 more source

Deterioration and Recurrence in Flight Passengers with Ischemic Stroke: An Evidence Based Case Report

Hanggong uju uihakoeji, 2023
Ischemic stroke is a cerebrovascular disease characterized by a sudden neurological deficit due to thrombotic or embolic event. The physiological changes during in-flight related to high altitude, hypobaric hypoxic, is a condition that can affect ...
Anugrah Dwi Riski, Monica Djaja Saputera, Rachmy Hamdiyati, Ferdi Afian   +3 more
doaj   +1 more source

Multimaterial Approach to Improve the Mechanical Properties of a Novel Modified Auxetic Reentrant Honeycomb Structure

Advanced Engineering Materials, EarlyView.
A multimaterial approach is introduced to improve upon auxetic structures by combining two different polymers into the same reentrant honeycomb structure via additive manufacturing. The deformation behavior as well as the resulting Poisson's ratio are thereby improved significantly.
Alexander Engel, Oraib Al‐Ketan, Anne Jung   +2 more
wiley   +1 more source

Toughness of Confined Auxetic Foams

Advanced Engineering Materials, EarlyView.
Auxetic (negative Poisson's ratio) materials offer benefits such as impact mitigation, thermal insulation, vibration damping, and reduced shear strain, although their fracture mechanics are largely unexplored. This study investigates damage initiation and propagation in confined re‐entrant auxetic foams from polyurethane via experimental ...
Adrianos E. F. Athanasiadis, Oliver Duncan, Michal K. Budzik, Marcelo A. Dias   +3 more
wiley   +1 more source

On the Deformation Behavior of Metastable CrMnNi Steels Processed by Directed Energy Deposition in Different Temperature Regimes

Advanced Engineering Materials, EarlyView.
In the present study, metastable CrMnNi steels with varying chemical compositions and a concomitantly altered stacking fault energy are processed via directed energy deposition and afterwards tested via tensile tests at different temperatures. The present study shows the influence of the manufacturing process on the elemental deformation mechanisms for
Julia Richter, Thomas Wegener, Florian Stredak, Gert Bartzsch, Steffen Scherbring, Javad Mola, Olena Volkova, Stefan Böhm, Thomas Niendorf   +8 more
wiley   +1 more source

Editorial for Vol. 34, No. 1

Hanggong uju uihakoeji
This issue of Volume 34, Issue 1 contains 5 papers, 3 original articles, 2 review articles, and 0 case report. By subject, there were 0 papers on Aerospace Medicine, 5 on Aviation Human Factors, and 0 on Aviation Nursing.
Juwon Lim
doaj   +1 more source

Improving Surface Quality of Titanium Electrodeposition from a Deep Eutectic Solvent with Organic and Inorganic Additives

Advanced Engineering Materials, EarlyView.
Herein, the electroplating of titanium from an organic solvent, ethaline, is shown. Polymer additives are shown to smooth the roughness of the film, and small molecule additives are shown to produce a near‐mirror finish to the deposited metal. Titanium electroreduction is desired for a variety of medical, electronic, and bonding applications but has ...
Steven Livers, Christopher Chancellor, Katarzyna Grubel, Diana Horangic, Riah Burnett, Bailey Byrd, Christina Arendt, Lance Hubbard   +7 more
wiley   +1 more source