Results 71 to 80 of about 213,155 (287)

ASYMPTOTIC BEHAVIOR OF COMPLEX SCALAR FIELDS IN A FRIEDMAN-LEMAITRE UNIVERSE

, 1995
We study the coupled Einstein-Klein-Gordon equations for a complex scalar field with and without a quartic self-interaction in a curvatureless Friedman-Lema\^{\i}\-tre Universe. The equations can be written as a set of four coupled first order non-linear
A. D. Linde, A. Liddle, D. K. Arrowsmith, David Scialom, G. F. Smoot, K. A. Olive, N. Deruelle, N. Deruelle, P. Jetzer, Philippe Jetzer, T. Piran, V. A. Belinsky, V. A. Belinsky, V. A. Belinsky, V. Mukhanov   +14 more
core   +1 more source

A Quantitative Lithium Inventory Framework for Anode‐Free Lithium Metal Batteries

Advanced Energy Materials, EarlyView.
A component‐resolved lithium inventory framework quantitatively tracks Li redistribution across the cell in anode‐free NMC622||Cu pouch cells throughout cycling. Three sequential degradation stages are identified: formation‐driven cathode Li depletion, midlife inactive Li0 accumulation, and late‐stage runaway SEI thickening. The cathode, as the sole Li
Wurigumula Bao, Alex Liu, Thomas S. Marchese, Yuanlong Bill Zheng, Weikang Li, Dhevathi Rajan Rajagopalan Kannan, Vallabha Rao Rikka, Vinay Premnath, Judith Jeevarajan, Ying Shirley Meng   +9 more
wiley   +1 more source

PhaPl: software to plot and research phase portraits automatically

Открытое образование (Москва), 2017
The article aims to document PhaPl that’s a teaching software to plot and research phase portraits of autonomous systems of 2 differential equations on a plane. Interactive computer teaching materials allow to demonstrate tasks describing large number of
A. A. Cherepanov
doaj   +1 more source

The Ricci flow approach to homogeneous Einstein metrics on flag manifolds

, 2010
We give the global picture of the normalized Ricci flow on generalized flag manifolds with two or three isotropy summands. The normalized Ricci flow for these spaces descents to a parameter depending system of two or three ordinary differential equations,
Alekseevsky, Alekseevsky, Arvanitoyeorgos, Arvanitoyeorgos, Besse, Borel, Böhm, Dickinson, Dohira, Gonzales, Grama, Hamilton, Hamilton, Helgason, Ioannis Chrysikos, Kimura, Park, Poincaré, Stavros Anastassiou, Wang   +19 more
core   +1 more source

Topological Properties of International Commodity Market: How Uncertainty Affects the Linkages?

Agribusiness, EarlyView.
ABSTRACT The study aims to explore the network topology of the international commodity market by examining the interconnections among 21 commodity futures across various categories, including energy, precious and industrial metals, and agriculture. We analyze the market structure of these commodity futures under both low and high uncertainty conditions
Ibrahim Yagli, Bayram Deviren
wiley   +1 more source

ФАЗОВЫЙ АНАЛИЗ ВРЕМЕННЫХ РЯДОВ ГЕОФИЗИЧЕСКИХ ПОЛЕЙ

Vestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2013
В работе рассмотрен один из этапов предпрогнозного анализа временных рядов, основанный на разложении их фазового портрета по квазициклам на примере временного ряда объемной активности радона (ОА Rn).
Паровик, Р.И., Фирстов, П.П., Parovik, R.I., Firstov, P.P.   +3 more
doaj   +1 more source

Phase portraits of two classes of quadratic differential systems exhibiting as solutions two cubic algebraic curves

Demonstratio Mathematica, 2023
The classification of the phase portraits is one of the classical and difficult problems in the qualitative theory of polynomial differential systems in R2{{\mathbb{R}}}^{2}, particularly for quadratic systems.
Benterki Rebiha, Belfar Ahlam
doaj   +1 more source

Dual characterization of critical fluctuations: Density functional theory & nonlinear dynamics close to a tangent bifurcation

, 2017
We improve on the description of the relationship that exists between critical clusters in thermal systems and intermittency near the onset of chaos in low-dimensional systems.
Riquelme-Galvan, M., Robledo, A.
core   +1 more source

Farmers’ Protests in Germany: Media Coverage and Types of Bias

Agribusiness, EarlyView.
ABSTRACT The German farmers’ protests of 2024 sparked widespread media coverage and public debate. Yet, media coverage was not always positive, reflecting the media's attention‐seeking and selective focus. Occurrences of farmers blocking media outlets reflected distrust in how their concerns were portrayed.
Felix Schlichte, Doris Läpple
wiley   +1 more source

Modeling the separation of water‐in‐oil emulsions in continuously fed gravity settlers using millifluidic experiments

AIChE Journal, EarlyView.
Abstract Emulsion separation remains a persistent challenge in chemical and process industries due to the metastable nature of dispersed droplets. In gravity separators, the overall separation rate is governed by the formation of a densely packed zone (DPZ) of deforming and coalescing droplets that mediates between the dispersed and continuous phases ...
Andrei Zlobin, José Esteban Andino‐Enriquez, Thomas Gouëzec, Maurice Bourrel, Enric Santanach‐Carreras, Nicolas Passade‐Boupat, Laurence Talini, François Lequeux, Pascal Panizza   +8 more
wiley   +1 more source