Results 81 to 90 of about 129,793 (295)

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

M-type Star Spectral Analysis: ScO Line List Including the B2Σ+–X2Σ+ Band System

The Astrophysical Journal
An analysis of the B ^2 Σ ^+  − X ^2 Σ ^+ band system of ^45 Sc ^16 O is presented. ScO was excited in a hollow cathode discharge, and its Doppler-limited resolution spectrum was measured with a Fourier transform spectrometer. The spectroscopic constants
Léo Lavy, Jacques Liévin, Peter F Bernath   +2 more
doaj   +1 more source

Search for varying constants of nature from astronomical observation of molecules

, 2017
The status of searches for possible variation in the constants of nature from astronomical observation of molecules is reviewed, focusing on the dimensionless constant representing the proton-electron mass ratio $\mu=m_p/m_e$.
A. Ivanchik, A.L. Malec, A.V. Ivanchik, C. Henkel, D. Albornoz Vásquez, D. Bailly, D.A. Varshalovich, D.A. Varshalovich, E. Reinhold, E.J. Salumbides, E.J. Salumbides, F. Weerdenburg van, G.R. Carruthers, H. Abgrall, H. Rahmani, J. Bagdonaite, J. Bagdonaite, J. Bagdonaite, J. Bagdonaite, J. Bagdonaite, J. Bagdonaite, J. Barrow, J. Darling, J. Khoury, J. Philip, J.-P. Uzan, J.A. King, J.A. King, J.B. Whitmore, J.B. Whitmore, J.K. Webb, J.K. Webb, J.N. Bahcall, K. Griest, K.C. France, M. Daprà, M. Daprà, M. Daprá, M. Daprá, M. Rauch, M. Wendt, M.G. Kozlov, M.P. Savedoff, M.T. Murphy, N. Kanekar, N. Kanekar, N. Kanekar, N. Kanekar, P. Jansen, P. Jansen, P. Langacker, P. Molaro, P. Noterdaeme, P. Noterdaeme, P. Noterdaeme, P. Noterdaeme, P. Petitjean, R. Srianand, R.I. Thompson, S. Muller, S. Xu, S.A. Balashev, S.A. Levshakov, S.A. Levshakov, T. Wilken, T.I. Ivanov, V. Dumont, V.A. Dzuba, V.V. Flambaum, V.V. Flambaum, V.V. Meshkov, W. Ubachs, W. Ubachs, W. Ubachs, X. Calmet   +74 more
core   +2 more sources

Multireference configuration interaction study on spectroscopic parameters and molecular constants of AsN(X1 +) radical

Acta Physica Sinica, 2011
The potential energy curve (PEC) of the AsN(X1 +) radical is investigated by the highly accurate valence internally contracted multireference configuration interaction method in combination with the correlation-consistent basis sets, aug-cc-pV5Z for As and aug-cc-pV6Z for N atom.
null Wang Jie-Min, null Sun Jin-Feng
openaire   +1 more source

Nonthermal Plasma Reduction of Nickel Oxide Layers by Atmospheric Pressure Dielectric Barrier Discharge in Argon/Hydrogen

Advanced Engineering Materials, EarlyView.
This work explores the reduction of nickel oxide layers using dielectric barrier discharge plasma in an argon–hydrogen atmosphere. The results reveal a strong temperature dependence, enabling complete reduction of thick oxide layers at 200°C within seconds.
Maria Argirusi, Viktor Udachin, Sascha Jan Zimmermann, Alexander Tillmanns, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +5 more
wiley   +1 more source

The rovibrational spectrum of BeH, MgH and CaH at high temperatures in the $X\,{}^2\Sigma^+$ state: a theoretical study

, 2012
Accurate line lists for three molecules, BeH, MgH and CaH, in their ground electronic states are presented. These line lists are suitable for temperatures relevant to exoplanetary atmospheres and cool stars (up to 2000K).
Allard, Barbuy, Barclay, Bell, Bell, Benjamin Yadin, Berdyugina, Berdyugina, Berg, Berg, Berg, Bernath, Bonnell, Boutalib, Brown, Burgasser, Carlsund-Levin, Chen, Chen, Christian Hill, Clerbaux, Colin, Cottrell, Degreef, Di, Focsa, Frum, Frum, Gasmi, Gay, Guitou, Herzberg, Holka, Huber, Hulthèn, Irwin, Jonathan Tennyson, Kaving, Kaving, Kaving, Kaving, Kerkines, Klynning, Klynning, Knowles, Knowles, Knowles, Koput, Kulaczewski, Kurucz, Lambert, Lambert, Le Roy, Le Roy, Le Roy, Le Roy, Leininger, Lemoine, Leopold, Li, Liu, Lodi, Martin, Martin, McGovern, Mestdagh, Pavlenko, Pearse, Pereira, Petitprez, Pierandrea Conti, Pitarch-Ruiz, Ram, Reid, Reiners, Sakamoto, Sakamoto, Sauval, Saxon, Sergei N. Yurchenko, Serrano, Shanmugavel, Shayesteh, Shayesteh, Shayesteh, Shayesteh, Shayesteh, Simeckova, Skory, Sotirovski, Steimle, Steimle, Tennyson, Thomas Veness, Tomkin, Uehara, Urena, Vidler, Wallace, Watson, Watson, Weck, Weck, Weck, Weck, Woon, Woon, Wyller, Wöhl, Yong, Zink, Ziurys   +111 more
core   +1 more source

The ground-state spectroscopic constants of Be_2 revisited [PDF]

, 1999
Extensive ab initio calibration calculations combined with extrapolations towards the infinite-basis limit lead to a ground-state dissociation energy of Be_2, D_e=944 \pm 25 1/cm, substantially higher than the accepted experimental value, and confirming ...
Balint-Kurti, Bartlett, Bartlett, Blomberg, Blomberg, Bondybey, Bondybey, Boys, Coxon, Dunning, Evangelisti, Evangelisti, Füsti-Molnár, Füsti-Molnár, Gdanitz, Halkier, Harrison, Jan M.L. Martin, Jones, Kutzelnigg, Liu, Martin, Martin, Martin, Martin, Martin, Noga, Petersson, Purvis, Raghavachari, Røeggen, Sosa, Stärck, Szalay   +33 more
core   +3 more sources

Dielectric Barrier Discharge Plasma Deoxidation of Natively Oxide Layer of Copper Powders in a Fluidized Bed

Advanced Engineering Materials, EarlyView.
This paper presents a novel approach to reducing oxide layers on metal powders using low‐temperature hydrogen dielectric barrier discharge plasmas at atmospheric pressure. Unlike conventional hydrogen‐plasma reductions, the powders do not contact the plasma directly.
Shukang Zhang, Annett Wollmann, Thomas Gimpel, Alfred P. Weber   +3 more
wiley   +1 more source

Formation pathways and detectability of interstellar C2HNO-bearing molecules

Astronomy & Astrophysics
Aims. We explored N-bearing molecules of the general formula C2HNO. We provide their spectroscopic constants, structural properties relevant for detection, and reaction pathways to constrain their formation in the interstellar medium. Methods.
Godwin Oko Emmanuel, Inostroza-Pino Natalia, MacLeod-Carey Desmond, Mardones Diego   +3 more
doaj   +1 more source

Spectroscopy of free radicals and radical containing entrance-channel complexes in superfluid helium nano-droplets [PDF]

, 2006
The spectroscopy of free radicals and radical containing entrance-channel complexes embedded in superfluid helium nano-droplets is reviewed. The collection of dopants inside individual droplets in the beam represents a micro-canonical ensemble, and as ...
Alkemade U, Arrhenius S, Becker EW, Botschwina P, Botschwina P, Eyring H, Goldschleger IU, Herbst E, Hirschfelder JO, Jeremy M. Merritt, Jochen Küpper, Kim Y, Lehmann K, Lide DR, London F, Neumark DM, Nieto MM, Scoles G, Stone AJ, Van't Hoff JH, Warnatz J, Wayne RP, Western CM   +22 more
core   +3 more sources