Results 31 to 40 of about 2,302,822 (346)

Elastic model for stress–tensor-induced martensitic transformation and lattice instability in silicon under large strains

Materials Research Letters, 2017
Recent molecular dynamics simulations for phase transformations (PTs) Si I $ \leftrightarrow $ Si II under multiaxial loading revealed that lattice instability criteria for Si I $ \leftrightarrow $ Si II PTs are linear in the stresses $ \sigma _i ...
Valery I. Levitas
doaj   +1 more source

DUALITY IN FUZZY SIGMA MODELS [PDF]

International Journal of Modern Physics A, 2004
Nonlinear "sigma" models in two dimensions have BPS solitons which are solutions of self- and anti-self-duality constraints. In this paper, we find their analogues for fuzzy sigma models on fuzzy spheres which were treated in detail by us in earlier work.
Balachandran, A. P., Immirzi, Giorgio
openaire   +2 more sources

Balanced Scorecard ve Altı Sigma: Bütünleşik Bir Model Önerisi

Journal of Human and Work, 2015
Bu çalışmada, Balanced Scorecard ve Altı Sigma uygulama süreçlerinin bütünleştirilerek yeni bir model önerisi oluşturulması amaçlanmaktadır. Model önerisi uygulanmadan önce, stratejik planlama sürecinin tamamlanmış olması gerekmektedir.
Ahmet BARBAK
doaj   +1 more source

Derivation of Meson Masses in SU(3) and SU(4) Extended Linear Sigma Model at Finite Temperature

Particles
The present study focused on the mesonic potential contributions to the Lagrangian of the extended linear sigma model (eLSM) for scalar and pseudoscalar meson fields across various quark flavors.
Abdel Nasser Tawfik, Azar I. Ahmadov, Alexandra Friesen, Yuriy Kalinovsky, Alexey Aparin, Mahmoud Hanafy   +5 more
doaj   +1 more source

Gauged (2,2) Sigma Models and Generalized Kahler Geometry [PDF]

, 2006
We gauge the (2,2) supersymmetric non-linear sigma model whose target space has bihermitian structure (g, B, J_{\pm}) with noncommuting complex structures.
A. Bredthauer, A. Sevrin, Diana Vaman, H. Bursztyn, Leopoldo A. Pando Zayas, M. Crainic, M. Gualtieri, S. Hu, S. Hu, S.J. Gates Jr., U. Lindström, U. Lindström, U. Lindström, W. Merrell, Willie Merrell, Y. Lin, Y. Lin   +16 more
core   +3 more sources

SIGMA Animal Disease Data Model

EFSA Journal, 2019
The European Commission is routinely asking EFSA for scientific and technical support in the epidemiological analysis of animal disease outbreaks (i.e. African swine fever, lumpy skin disease and avian influenza) and to report or assess surveillance data
European Food Safety Authority (EFSA), Gabriele Zancanaro, Sotiria Eleni Antoniou, Marta Bedriova, Frank Boelaert, José Gonzales Rojas, Mario Monguidi, Helen Roberts, Sören Saxmose Nielsen, Hans‐Herman Thulke   +9 more
doaj   +1 more source

Gauged Nonlinear Sigma Model and Boundary Diffeomorphism Algebra [PDF]

, 1999
We consider Chern-Simons gauged nonlinear sigma model with boundary which has a manifest bulk diffeomorphism invariance. We find that the Gauss's law can be solved explicitly when the nonlinear sigma model is defined on the Hermitian symmetric space, and
Bak, Bañados, Bañados, Brown, Carlip, Fordy, Forger, Goddard, Oh, Perelomov, Phillial Oh, Strominger   +11 more
core   +3 more sources

Yang-Baxter deformations of the AdS5×S5 supercoset sigma model from 4D Chern-Simons theory

Journal of High Energy Physics, 2020
We present homogeneous Yang-Baxter deformations of the AdS5 ×S5 supercoset sigma model as boundary conditions of a 4D Chern-Simons theory. We first generalize the procedure for the 2D principal chiral model developed by Delduc et al.
Osamu Fukushima, Jun-ichi Sakamoto, Kentaroh Yoshida   +2 more
doaj   +1 more source

SUPERSYMMETRIC SIGMA MODELS [PDF]

, 1985
We begin to construct the most general supersymmetric Lagrangians in one, two and four dimensions. We find that the matter couplings have a natural interpretation in the language of the nonlinear sigma model.
openaire   +1 more source

Mass Spectrum of Noncharmed and Charmed Meson States in Extended Linear-Sigma Model

Particles
The mass spectrum of different meson particles is generated using an effective Lagrangian of the extended linear-sigma model (eLSM) for scalar and pseudoscalar meson fields and quark flavors, up, down, strange, and charm.
Azar I. Ahmadov, Azzah A. Alshehri, Abdel Nasser Tawfik   +2 more
doaj   +1 more source