Results 231 to 240 of about 3,033,607 (304)

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

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

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

Can social protection contribute to social connectedness in contexts of forced displacement and crisis? Lessons from Jordan's labelled cash transfer for education.

World Dev
Abu Hamad B, Jones N, Abuhamad S, Baird S, Oakley E.   +4 more
europepmc   +1 more source

Do social protection programmes affect the burden of breast and cervical cancer? A systematic review. [PDF]

Health Policy Open
Gabrielli L, Alvim Matos SM, Luísa Patrão A, Góes EF, da Conceição C Almeida M, M S Menezes G, Dos-Santos-Silva I, Azevedo E Silva G, Teresa Bustamante-Teixeira M, Barreto ML, Vittal Katikireddi S, Leyland AH, Ferreira Campos L, Maria Dias Fernandes de Novaes E, de Almeida Pereira D, Rodrigues Santana E, Rodrigues Gonçalves Zeferino F, Cleide da Silva Dias A, Fernandes FG, Cristina de Oliveira Costa A, M L Aquino E.   +20 more
europepmc   +1 more source

Removing Oxide Layers and Retaining Oxide‐Free Steel Surfaces by Polishing in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this study, the efficacy of wet mechanical polishing under an oxygen‐free atmosphere for deoxidation and the retention of an oxide‐free steel surface are elucidated using X‐ray photoelectron spectroscopy. The methodology proved successful; however, the results were highly dependent on the preparation of the solvents used to clean the samples after ...
Friedrich Bürger, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +2 more
wiley   +1 more source

Understanding perspectives of HIV/AIDS affected households on food and nutrition interventions and social protection programmes in Zimbabwe. [PDF]

Front Nutr
George K, Dembedza MP, Lesley M.
europepmc   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

Catastrophic health expenditure, social protection coverage, and financial coping strategies in adults with symptoms of chronic respiratory diseases in Kenya: a cross-sectional study.

Lancet Glob Health
Mulupi S, Waithera C, Tomeny EM, Egere U, Meme H, Kirubi B, Chakaya J, Barasa E, Taegtmeyer M, Wingfield T, NIHR International Multidisciplinary Programme to Address Lung Health and TB in Africa Consortium.   +10 more
europepmc   +1 more source