Results 51 to 60 of about 475,078 (290)

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

Advanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti, Finn‐Lennard Janthur, Selina Raumel, Sascha Jan Zimmermann, Sarah Seffer, René Gustus, Sebastian Herbst, Marc C. Wurz, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Florian Nürnberger   +11 more
wiley   +1 more source

Generic Pharmaceuticals as a Source of Diuretic Contamination in Athletes Subject to Sport Drug Testing

Frontiers in Sports and Active Living, 2021
This paper describes nine instances of positive anti-doping tests that could be accounted for by the use of permitted generic prescription drugs contaminated with diuretics, which are prohibited in sport at all times under the WADA Prohibited List.
Amy Eichner, Laura A. Lewis, Bridget Leonard, Ryan M. Van Wagoner, Daniel Eichner, Matthew N. Fedoruk   +5 more
doaj   +1 more source

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

Advanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie, David Kramer, Thomas Scheithauer, Hans Jürgen Maier, Thomas Hassel   +4 more
wiley   +1 more source

The structural validity and latent profile characteristics of the Abbreviated Profile of Mood States among Chinese athletes

BMC Psychiatry
Background This study examines the structural validity of the Chinese version of the Abbreviated Profile of Mood States (POMS) among Chinese athletes and analyzes potential profiles to provide evidence for its effective use and recommendations for its ...
Chenhao Tan, Jun Yin, Yan An, Jinhao Wang, Jun Qiu   +4 more
doaj   +1 more source

The purpose and effectiveness of doping testing in sport

Frontiers in Sports and Active Living
Maintaining an effective testing program is critical to the success and credibility of the anti-doping movement. However, a low detection ratio compared to the assumed real prevalence of sport doping has led some to question and criticize the ...
Fredrik Lauritzen, Anders Solheim
doaj   +1 more source

Superconducting Mechanism through direct and redox layer doping in Pnictides

, 2012
The mechanism of superconductivity in pnictides is discussed through direct doping in superconducting FeAs and also in charge reservoir REO layers. The un-doped SmFeAsO is charge neutral SDW (Spin Density Wave) compound with magnetic ordering below 150 K.
Awana, V. P. S., Husain, M., Kishan, H., Singh, Shiva Kumar   +3 more
core   +1 more source

Using the prototype willingness model to predict doping in sport. [PDF]

, 2014
To enable preventive measures to be designed, it is important to identify modifiable distal and proximal factors underlying doping behavior. This study investigated aspects of the prototype willingness model in relation to doping. A cross-sectional study
Ajzen, Andrews, Backhouse, Blanton, Bloodworth, Fahey, Gibbons, Gibbons, Goulet, Hasking, Hauw, Kirby, Kondric, Kreuter, Lazuras, Lentillon-Kaestner, Lucidi, Mazanov, Melzer, Nulty, Petróczi, Petróczi, Petróczi, Pitsch, Pomery, Rivis, Tabachnick, Thornton, UNESCO, Uvacsek, WADA, Whitaker, Wiefferink, Zimmermann   +33 more
core   +1 more source

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

Advanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann, René Gustus, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +3 more
wiley   +1 more source

Biological functions of cobalt and its toxicology and detection in anti-doping control

Тонкие химические технологии, 2021
Objectives. Over the last decade, hematopoietic stimulants have grown increasingly popular in elite sports. This is supported by the growing number of high-profile doping scandals linked to their use.
I. V. Pronina, E. S. Mochalova, Yu. A. Efimova, P. V. Postnikov   +3 more
doaj   +1 more source

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

Advanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz, Maik Szafarska, René Gustus, Kai Möhwald, Hans Jürgen Maier   +4 more
wiley   +1 more source