Results 81 to 90 of about 286,385 (277)

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

Advanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin, Lienhard Wegewitz, René Gustus, Henning Wiche, Wolfgang Maus‐Friedrichs   +4 more
wiley   +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

Performance of the MOLES and TFSOM-DIM scores in classifying choroidal nevi and melanoma

Scientific Reports
Choroidal nevi are common benign melanocytic lesions often incidentally found during routine ophthalmic examinations. Patients with choroidal nevi are frequently referred to ocular oncology centers to differentiate these from choroidal melanoma and to ...
David Jahnke, Carsten Grohmann, Bettina Fuisting, Christos Skevas, Martin S. Spitzer, Johannes Birtel   +5 more
doaj   +1 more source

Urinary ATP as an indicator of infection and inflammation of the urinary tract in patients with lower urinary tract symptoms [PDF]

, 2015
BACKGROUND: Adenosine-5'-triphosphate (ATP) is a neurotransmitter and inflammatory cytokine implicated in the pathophysiology of lower urinary tract disease. ATP additionally reflects microbial biomass thus has potential as a surrogate marker of urinary
A Kupelian, A Lundin, Anthony S Kupelian, AS Kupelian, D Staskin, E Osterberg, ED Crawford, EH Kass, G Burnstock, G Burnstock, Gianluca Baio, H Hanberger, Harry Horsley, JA Poulis, James Malone-Lee, Jennifer L Rohn, K Avery, K Gill, Kiren Gill, KS Coyne, L Weyden van der, M Bayliss, M McGinley, Maria De Iorio, MH Gorelick, PD Meers, R Khasriya, R Khasriya, Rajvinder Khasriya, RJ Heuer, S Al Buheissi, S Khan, S Save, Sanchutha Sathiananamoorthy, Scott S Wildman, T Wijk Van der, TA Hurlbut 3rd, WE Stamm, WL Deville, Y Siegman-Igra   +39 more
core   +2 more sources

Additive Gaussian Process Regression for Predictive Design of High‐Performance, Printable Silicones

Advanced Engineering Materials, EarlyView.
A chemistry‐aware design framework for tuning printable polydimethylsiloxane (PDMS) for vat photopolymerization (VPP) is developed using additive Gaussian process (GP) modeling. Polymer network mechanics informs variable groupings, feasible formulation constraints, and interaction variables.
Roxana Carbonell, Martha Leach, Hongtao Song, Carolyn Seepersad   +3 more
wiley   +1 more source

The peculiar galaxy IC 1182: An ongoing merger?

, 2003
Broad and narrow band images and long slit spectroscopy of IC1182 are presented. The broad band images reveal a distorted morphology with a large, heavily obscured disk-like structure and several knots in the central region. Galactic material, some of it
Arp, B. Milvang-Jensen, Barnes, Bothun, Calzetti, D. Bettoni, Dickey, Evans, Fasano, G. Fasano, Heckman, Huang, J. Varela, Keel, Khachikian, Koski, M. Moles, Martin, Melnick, Mendes de Oliveira, Mirabel, Márquez, P. Kjærgaard, Rafanelli, Salpeter, Schlegel, Schweizer, Stockton, Veilleux, Viegas-Aldrovandi, Véron, Zezas   +31 more
core   +1 more source

Metallic conductivity and a Ca substitution study of NaRh2O4 comprising a double chain system [PDF]

, 2005
The metallic compound NaRh2O4 forms a full range solid solution to the insulating phase CaRh2O4. At a Na concentration of 0.25 moles per formula unit, we found an unexpected contribution to the specific heat at low temperature [K. Yamaura et al.
D.P. Young, E. Takayama-Muromachi, K. Yamaura, M. Moldovan, Q. Huang, X.L. Wang, Yamaura   +6 more
core   +3 more sources

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Einfluss des Maulwurfs (Talpa europaea) auf die Wirksamkeit von Migrations-barrieren zur Abwehr von Wühlmausschäden im Ökologischen Landbau [PDF]

, 2007
Water voles (Arvicola terrestris) and common voles (Microtus arvalis) cause substan-tial damage in organic fruit growing by gnawing at bark and roots of trees.
Malevez, Jean, Pelz, Hans-Joachim, Walther, Bernd   +2 more
core  

On the use of scaling relations for the Tolman test [PDF]

, 1998
The use of relations between structural parameters of early type galaxies to perform the Tolman test is reconsidered. Scaling relations such as the FP or the Kormendy relation, require the transformation from angular to metric sizes, to compare the ...
Ana Campos, Bower R. G., Daniela Bettoni, Giovanni Fasano, Mariano Moles, Per Kjærgaard, Pozzetti L., Recillas-Cruz E., van Dokkum P. G.   +8 more
core   +4 more sources