Results 81 to 90 of about 174,545 (215)

Lorentzian cylinder lie group in R51 and it’s a C°°-action

Communications, Faculty Of Science, University of Ankara Series A1Mathematics and Statistics, 2005
In this paper, two binary operations on Lorentzian sphere in R_14 and on Lorentzian cylinder in R_15 are defined. Also, it has been shown that Lorentzian sphere in R_14 and Lorentzian cylinder in R_15 with the corresponding binary operation form Lie groups.
Gündoğan, Halit, Pektaş, Kadriye
openaire   +2 more sources

Argon Cold Plasma Modification of Polyethylene Films to Tailor Surface and Barrier Properties

Journal of Applied Polymer Science, EarlyView.
Argon cold plasma treatment of low‐density polyethylene (LDPE) and high‐density polyethylene (HDPE) films induces major changes in surface chemistry and morphology. Contact angles decrease significantly while surface energy increases, improving wettability. FTIR confirms the formation of polar functional groups, while pronounced etching, roughness, and
Aikaterini Spanou, Chrysi Lagkouvardou, Petrina Vogiannou, Vasiliki Korka, Enrico Maurizzi, Ioanna Georgia I. Athanasoulia, Dimitrios Ladakis, Andrea Pulvirenti, Efstathios Z. Panagou, Demetres Briassoulis, Apostolis Koutinas, Theofania Tsironi   +11 more
wiley   +1 more source

Quantification of Tryptophan and NAD⁺ Proton Magnetization Exchange With Water Using Downfield ¹H MRS in the Human Brain at 7 T. [PDF]

Magn Reson Med
ABSTRACT Purpose The purpose of this study was to investigate the effect of magnetization exchange on the measurement of tryptophan and NAD+ T1 relaxation times and to determine the magnetization exchange rates with a two‐spin system model using downfield 1H MRS spectroscopy at 7 T in human brain.
Swago S, Wilson NE, Elliott MA, Reddy R, Witschey WR, Nanga RPR.   +5 more
europepmc   +2 more sources

Cohomogeneity One Three Dimensional Anti de Sitter Space, Proper and Nonproper Actions

, 2014
In this paper we give a classification of closed and connected Lie groups, up to conjugacy in $Iso({\bf adS_3})$, acting by cohomogeneity one on the three dimensional anti de sitter space ${\bf adS_3}$.
Ahmadi, Parviz
core   +1 more source

Rational Design of Donor‐Acceptor Oligomers for Enhanced Charge Separation

Advanced Physics Research, EarlyView.
How can molecular symmetry be broken to maximize photoinduced charge separation? Through first‐principles analysis of 22 DTP‐based donor‐acceptor ternary oligomers, this work establishes that combining architectural asymmetry with site‐selective acceptor fluorination creates an ideal electrostatic landscape for frontier orbital segregation.
Jannik Theile, Michele Guerrini, Surender Kumar, Caterina Cocchi   +3 more
wiley   +1 more source

Canonical Connections and Algebraic Ricci Solitons of Three-dimensional Lorentzian Lie Groups

Chinese Annals of Mathematics, Series B, 2022
In this paper, we compute canonical connections and Kobayashi-Nomizu connections and their curvature on three-dimensional Lorentzian Lie groups with some product structure. We define algebraic Ricci solitons associated to canonical connections and Kobayashi-Nomizu connections. We classify algebraic Ricci solitons associated to canonical connections and
openaire   +2 more sources

Keggin‐Type Aluminum Polyoxometalate‐Mediated Oxidation of Amorphous Carbon for Engineered Electrochemical Interfaces

Carbon Energy, EarlyView.
Keggin‐type Al‐POM‐coated silica achieves selective surface oxidation of amorphous carbon through electrostatic attraction and proton‐coupled oxidation, tailoring interfacial properties for lithium‐ion batteries and semiconductor processes. ABSTRACT Amorphous carbon is widely used in energy storage and semiconductor technologies, where surface ...
Ganggyu Lee, Dongmin Kang, Sumin Hong, Hongjun Park, Myungju Woo, Woojin Jeong, Giha Lee, Junsang Lee, Sangkyun Kim, Jea‐Gun Park, Takamasa Mori, Yehwan Kim, Taeseup Song, Ungyu Paik   +13 more
wiley   +1 more source

The Electronic Spin State of Diradicals Obtained from the Nuclear Perspective: The Strange Case of Chichibabin Radicals

ChemPhysChem, Volume 26, Issue 6, March 15, 2025.
The electronic spin state of two Chichibabin radicals is investigated using 2‐dimensional hyperfine correlated Electron Nuclear Double Resonance. The protons (I=1/2) act as a reference for the electronic spin quantum number (S) via their hyperfine interactions.
Gabriel Moise, Saleta Fernández, Kit Joll, Mikhail V. Vaganov, Fátima García, Christiane R. Timmel, Diego Peña, Arzhang Ardavan   +7 more
wiley   +1 more source

Anisotropy Factor Spectra for Weakly Allowed Electronic Transitions in Chiral Ketones

ChemPhysChem, Volume 26, Issue 6, March 15, 2025.
Anisotropy factor spectra for the weak n→π*‐type A‐band of chiral ketones cannot be described within the Franck–Condon approximation. Thus, we present such spectra computed by accounting for Herzberg–Teller corrections and compare them to experiments for fenchone, camphor and 3MCP to describe chiroptical properties of these molecules in the mid to near
Leon A. Kerber, Oliver Kreuz, Tom Ring, Hendrike Braun, Robert Berger, Daniel M. Reich   +5 more
wiley   +1 more source

Perspectives: Quantum Mechanics on Phase Space

, 2006
The basic ideas in the theory of quantum mechanics on phase space are illustrated through an introduction of generalities, which seem to underlie most if not all such formulations and follow with examples taken primarily from kinematical particle model ...
A. A. Michaelson, A. Einstein, A. Einstein, A. Einstein, A. Einstein, C. Carmeli, E. ki, E. ki, E. P. Wigner, E. P. Wigner, F. E. Schroeck, G. F. FitzGerald, G. W. Mackey, G. W. Mackey, H. Hertz, H. Minkowski, H. Minkowski, H. Minkowski, H. Poincaré, H. Poincaré, J. A. Brooke, J. A. Brooke, J. A. Brooke, J.-M. vy-Leblond, Jr. D. M. Healy, P. Busch, S. T. Ali, S. T. Ali, S. T. Ali, V. Bargmann   +29 more
core   +1 more source