Results 51 to 60 of about 409,231 (284)

Colloidal synthesis of germanium nanocrystals [PDF]

Nanochemistry Research, 2017
In this study, colloidal germanium nanocrystals were synthesized by a simple and novel method, and their optical properties were also studied. Polyvinyl alcohol (PVA) as a surface modifier was used to control the optical properties of colloidal Ge ...
Morteza Sasani Ghamsari, Sanam Tarkhorani   +1 more
doaj   +1 more source

LBT and Spitzer Spectroscopy of Star-Forming Galaxies at 1 < z < 3: Extinction and Star Formation Rate Indicators [PDF]

, 2012
We present spectroscopic observations in the rest-frame optical and near- to mid-infrared wavelengths of four gravitationally lensed infrared (IR) luminous star-forming galaxies at redshift 1 < z < 3 from the LUCIFER instrument on the Large Binocular ...
Afonso, Allam, Alonso-Herrero, B. J. Weiner, Bai, Becker, Bian, Brandl, Buat, C. J. Papovich, Choi, D. Thompson, Diamond-Stanic, Erb, F. Bian, Fadely, Finkelstein, Finkelstein, G. H. Rieke, Hainline, J. R. Rigby, Kennicutt, Kneib, Kocevski, Le Floc'h, Lin, M. Rex, Mandel, Moustakas, Nesvadba, O. P. Kuhn, Osterbrock, Papovich, Pope, Pérez-González, Reddy, Rieke, Rieke, Rigby, Rujopakarn, Rujopakarn, Rujopakarn, Sand, Siana, Smail, Smith, Teplitz, Teplitz, W. Rujopakarn, Weiner   +49 more
core   +3 more sources

Interactions between Molten High‐Silicon Electrical Steels and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
This study examines how several molten high‐silicon electrical steels interact with both conventional and recycled MgO–C refractories. For this, various immersion experiments are conducted. In addition to infiltration, a number of mechanisms are identified and explained that control the corrosion of the refractory material.
Lukas Neubert, Matheus Roberto Bellé, Anton Yehorov, Anhelina Mospan, Till M. J. Stadtmüller, Seetharaman Sridhar, Christos G. Aneziris, Olena Volkova   +7 more
wiley   +1 more source

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé, Lukas Neubert, Anton Yehorov, Till M. J. Stadtmüller, Christos G. Aneziris, Olena Volkova   +5 more
wiley   +1 more source

Optical emission spectroscopy of atmospheric-pressure non-equilibrium plasma with mist injection

AIP Advances, 2017
This paper describes optical emission spectroscopic diagnostics of atmospheric-pressure non-equilibrium plasma with mist injection. Electron number densities and gas temperatures are estimated from Hβ (486 nm) and OH (309 nm) spectra to be on the order ...
Masanao Tsumaki, Tsuyohito Ito
doaj   +1 more source

Terahertz driven amplification of coherent optical phonons in GaAs coupled to metallic dog-bone resonators [PDF]

EPJ Web of Conferences, 2019
Two-dimensional terahertz spectroscopy on an AlAs/GaAs nanostructure covered by field-enhancing dog-bone resonators shows signatures of coherent optical phonon amplification.
Woerner Michael, Somma Carmine, Reimann Klaus, Elsaesser Thomas, Brener Igal, Reno John L., Yang Yuanmu, Liu Peter Q.   +7 more
doaj   +1 more source

Structural and spectroscopic characterization of cadmium sodium phosphate glasses doped with ytterbium for optical applications

Results in Chemistry, 2022
Cadmium sodium phosphate glasses doped with ytterbium ions were fabricated by standard melt-quenching technique. The structural changes of the glass matrix doped with different ratios of Yb3+ ions were investigated via FTIR and Raman spectroscopies.
S.Y. Marzouk, H.M. Elsaghier, W. Abbas, Nehad A. Zidan, M.A. Azooz   +4 more
doaj   +1 more source

Electron and optical phonon temperatures in electrically biased graphene

, 2010
We examine the intrinsic energy dissipation steps in electrically biased graphene channels. By combining in-situ measurements of the spontaneous optical emission with a Raman spectroscopy study of the graphene sample under conditions of current flow, we ...
Kin Fai Mak, Louis E. Brus, Melinda Y. Han, Philip Kim, Stéphane Berciaud, Tony F. Heinz   +5 more
core   +1 more source

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

YVO4:RE (RE = Eu, Tm, and Yb/Er) nanoparticles synthesized by the microwave-assisted hydrothermal method for photoluminescence application

Eclética Química, 2022
Here, an experimental study is presented on the YVO4:RE (RE = Eu, Tm, and Yb/Er) nanoparticles synthesized by means of the microwave-assisted hydrothermal method.
Ivo Mateus Pinatti, Camila Cristina de Foggi, Marcio Daldin Teodoro, Elson Longo, Alexandre Zirpoli Simões, Ieda Lúcia Viana Rosa   +5 more
doaj   +1 more source