Results 101 to 110 of about 737,390 (249)

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

Adsorptive removal of heavy metal ions from model aqueous media using titanium metal-organic framework and its polyvinyl chloride functionalized composite

Desalination and Water Treatment
The present study was conducted on Ti-MOF and its PVC functionalized composite with the objective of toxic heavy metal ions removal from aqueous media.
Abdul Naeem, Naila Masood, Tooba Saeed, Bashir Ahmad, Muhammad Farooq, Tabassum Malik, Gul-e-Rana Jamil   +6 more
doaj   +1 more source

Phylogeny of conserved adenines in linkers of Group-I introns [PDF]

, 2009
We have analyzed the linkers in group-I introns, a characteristic region that is crucial to the folding and splicing process of the folded RNA, in seventy sequences spreading across r-RNA, t-RNA and organelle genes from various organisms including algae,
Chandrasekhar Kesavan, Natarajan Ganesan
core   +1 more source

Hydrogen and Metal Line Absorption Around Low-Redshift Galaxies in Cosmological Hydrodynamic Simulations

, 2013
We study the physical conditions of the circum-galactic medium (CGM) around z=0.25 galaxies as traced by HI and metal line absorption, using cosmological hydrodynamic simulations that include galactic outflows.
Aguirre, Amanda Brady Ford, Baldry, Bell, Benjamin D. Oppenheimer, Blitz, Bordoloi, Bouché, Bregman, Chen, Chen, Chen, Cooksey, Danforth, Danforth, David H. Weinberg, Davé, Davé, Davé, Davé, Davé, Davé, Davé, Davé, Dekel, Faucher-Giguère, Ferland, Ferrara, Finlator, Finlator, Finlator, Fumagalli, Gabor, Gabor, Haardt, Hellsten, Hui, Jarosik, Juna A. Kollmeier, Kacprzak, Kacprzak, Katz, Kennicutt, Kereš, Kollmeier, Kollmeier, Matejek, McKee, Mulchaey, Murray, Ménard, Neal Katz, Oppenheimer, Oppenheimer, Oppenheimer, Oppenheimer, Oppenheimer, Oppenheimer, Pontzen, Prochaska, Romeel Davé, Rubin, Savage, Schaye, Schaye, Schmidt, Sembach, Smith, Springel, Springel, Springel, Steidel, Stinson, Stocke, Sutherland, Tepper-García, Thom, Thom, Tripp, Tripp, Tripp, Tumlinson, van de Voort, van de Voort, Wakker, Werk, Wiersma, Wiersma, Wolfe, Zu   +89 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

The Extracellular Metallometabolome: Metallophores, Metal Ionophores, and Other Chelating Agents as Natural Products

Natural Product Communications
Natural products include inorganic as well as organic compounds. Living organisms face constant challenges in acquiring essential metal ions and getting rid of non-essential ones with toxic actions.
Wolfgang Maret
doaj   +1 more source

Metal Ion Detection Using Silica Sol-gels Containing Silver Nanoparticles and Calcein Blue (CB) [PDF]

, 2015
Surface-enhanced Raman spectroscopy (SERS) is a spectroscopic technique which relies on the inelastic scattering of photons from a target molecule. SERS is both sensitive and specific; the technique produces a unique spectrum for all molecules while ...
Carlson, Evan R
core   +1 more source

Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter, Felix Drechsler, Till M. J. Stadtmüller, Cameliu Himcinschi, Christos G. Aneziris, Jens Kortus   +5 more
wiley   +1 more source

Quantification of Ion Migration in CH3NH3PbI3 Perovskite Solar Cells by Transient Capacitance Measurements

, 2019
Solar cells based on organic-inorganic metal halide perovskites show efficiencies close to highly-optimized silicon solar cells. However, ion migration in the perovskite films leads to device degradation and impedes large scale commercial applications ...
Ehrler, Bruno, Fakharuddin, Azhar, Futscher, Moritz H., Haider, Muhammad Irfan, Lee, Ju Min, McGovern, Lucie, Muscarella, Loreta A., Schmidt-Mende, Lukas, Wang, Tianyi   +8 more
core   +1 more source

Tailored Hierarchical Porous Copper Architectures via Three Dimensional Printing and Pressure‐less Sintering for Next‐Generation Lithium‐Metal Batteries

Advanced Engineering Materials, EarlyView.
A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley   +1 more source