Results 31 to 40 of about 1,232,668 (173)

Elinvar Materials: Recent Progress and Challenges

Advanced Engineering Materials, EarlyView.
Elinvar materials, exhibiting temperature‐invariant elastic modulus, are critical for precision instruments and emerging technologies. This article reviews recent progress in the field, with a focus on the anomalous thermoelastic behavior observed in key material systems.
Wenjie Li, Yang Ren
wiley   +1 more source

Unidirectional Tape‐Based Composites from Hemp and Pineapple Leaf Fiber: Mechanical Performance in Conventional and Bio‐Based Matrices

Advanced Engineering Materials, EarlyView.
The study investigates novel semi‐finished products made of unidirectionally arranged hemp or pineapple leaf fiber‐reinforced composites produced from different matrices. The materials are analyzed in terms of their mechanical and interfacial properties and void content.
Nina Graupner, Raja Bade, Valentin Ackermann, Roja M. Baumann, Corvin Bischoff, Jona F. Ebeling, Oskar Glenz, Marlo Groh, Jonathan Groth, Finja Hiller, Tom Hirschmüller, Felix Menke, Syntcha Ngantchou Lecdou, Mika Ohler, Daniel Rafii Vardiny, Darius Richter, Dario Röper, Henrik Schumacher, Theresa Stein, Benjamin Vorbeck, Elisabeth Wermter, Kay Kölzig, Jörg Müssig   +22 more
wiley   +1 more source

Effective Field Theory: A Modern Approach to Anomalous Couplings

, 2012
We advocate an effective field theory approach to anomalous couplings. The effective field theory approach is the natural way to extend the standard model such that the gauge symmetries are respected.
Aaltonen, Aaltonen, Aguilar-Saavedra, Aguilar-Saavedra, Aguilar-Saavedra, Alwall, Appelquist, Baur, Baur, Buchmuller, Campbell, Cen Zhang, Céline Degrande, De Rujula, Ellison, Falk, Gaemers, Gomis, Grojean, Grzadkowski, Grzadkowski, Hagiwara, Hagiwara, Hagiwara, Hagiwara, Harrison Mebane, Kilian, Leung, Longhitano, Longhitano, Nakamura, Nicolas Greiner, Olivier Mattelaer, Salam, Scott Willenbrock, Tim Stelzer, Weinberg, Weinberg, Weinberg, Weinberg, Willenbrock, Wolfgang Kilian, Wudka, Zeppenfeld   +43 more
core   +1 more source

A Thermodynamic 3D Model for the Simulation of Diffusion‐Controlled Alloying Processes in Heterogeneous Material Structures

Advanced Engineering Materials, EarlyView.
A numerical model resulting from irreversible thermodynamics for describing transport processes is introduced, focusing on thermodynamic activity gradients as the actual driving force for diffusion. Implemented in CUDA C++ and using CalPhaD methods for determining the necessary activity data, the model accurately simulates interdiffusion in aluminum ...
Ulrich Holländer, Leonhard Holländer, André Langohr, Hans Jürgen Maier   +3 more
wiley   +1 more source

Critical constraints on chiral hierarchies. [PDF]

, 1993
Critical dynamics constrains models of dynamical electroweak symmetry breaking in which the scale of high-energy physics is far above 1 TeV. A big hierarchy requires the high-energy theory to have a second-order chiral phase transition, near which the ...
Chivukula, RS, Golden, M, Simmons, EH
core   +1 more source

Heavy Quarkonium Physics beyond the Next-to-Next-to-Leading Order of NRQCD

, 2000
In this talk I briefly review the recent progress in calculation of the high order corrections to the parameters of the nonrelativistic heavy quark-antiquark system in the effective theory approach.Comment: 8 pages LaTeX, talk presented at the High ...
Alexander A. Penin, Appelquist, Beneke, Beneke, Beneke, Beneke, Bodwin, Bodwin, Brambilla, Brambilla, Brambilla, Caswell, Czarnecki, Czarnecky, Fadin, Fadin, Fadin, Fadin, Hoang, Hoang, Hoang, Hoang, Hoang, Kniehl, Kniehl, Kniehl, Kühn, Lepage, Leutwyler, Luke, Manohar, Manohar, Melnikov, Melnikov, Nagano, Novikov, Novikov, Novikov, Penin, Penin, Penin, Penin, Peter, Peter, Pineda, Pineda, Pineda, Pineda, Pineda, Pineda, Schröder, Voloshin, Voloshin, Voloshin   +53 more
core   +2 more sources

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

Fundamental constants and their variability in theories of high energy physics

The European Physical Journal Special Topics, 2008
The Standard Model of particle physics and the theory of General Relativity (GR) currently provide a good description of almost all phenomena of particle physics and gravitation that have received controlled experimental tests. However, the Standard Model contains many a priori variable parameters whose values, and whose apparent (near-)constancy, have
openaire   +2 more sources

Recent developments in non-perturbative quantum field theory [PDF]

, 1996
We report on recent advances in the understanding of non-perturbative phenomena in the quantum theory of fields and strings.Comment: 6 pages, latex, uses stwol.sty; Plenary talk given at International Conference on High Energy Physics (ICHEP), Warsaw ...
Ferrara, Sergio
core   +1 more source

Signatures of very high energy physics in the squeezed limit of the bispectrum (violation of Maldacena's condition)

, 2012
We investigate the signatures in the squeezed limit of the primordial scalar bispectrum due to modifications of the standard theory at high energy. In particular, we consider the cases of modified dispersion relations and/or modified initial quantum ...
A. Ashoorioon, A. Dey, A. Erdélyi, A. Slosar, C. Burrage, C. Cheung, C. Wagner, C. Wagner, C.M. Bender, D. Babich, D. Baumann, D. Baumann, D. Chialva, D. Mattingly, D. Seery, Diego Chialva, E. Komatsu ., J. Khoury, J.M. Maldacena, K. Schalm, K.M. Smith, L. Verde, M. Porrati, N.D. Birrell, P. Creminelli, P. Creminelli, P. Creminelli, P.D. Meerburg, R. Holman, S. Dubovsky, S. Matarrese, S. Renaux-Petel, S. Shandera, U.H. Danielsson, U.H. Danielsson, V. Desjacques, X. Chen   +36 more
core   +1 more source