Results 31 to 40 of about 2,094,916 (148)

Stability optimization for a simultaneously twisted and compressed rod

Multidiscipline Modeling in Materials and Structures, 2022
PurposeThe authors search the optimal distribution of bending flexure along the axis of the rod. For the solution of the actual problem, the stability equations take into account all possible convex, simply connected shapes of the cross-section.
V. Kobelev
semanticscholar   +1 more source

Analytic Design Method Based on Homothetic Shape of Magnetic Cores for High-Frequency Transformers

IEEE Transactions on Power Electronics, 2007
An analytic formulation dedicated to the design of high-frequency power transformers is presented. This approach is based on the area product, and homothetic core shapes are considered. The temperature increase of the transformer is one of the main input data.
Forest, François, Labouré, Eric, Meynard, Thierry, Arab, Madjid   +3 more
openaire   +1 more source

Classification of the Killing Vectors in Nonexpanding HH-Spaces with Lambda

, 2011
Conformal Killing equations and their integrability conditions for nonexpanding hyperheavenly spaces with Lambda are studied. Reduction of ten Killing equations to one master equation is presented.
Chudecki, Adam
core   +1 more source

Per capita income and the extensive margin of bilateral trade [PDF]

, 2012
This paper quantitatively explores the role of the demand structure in explaining the relationship between an importer's per capita income and the extensive margin of bilateral trade.
Hepenstrick, Christian, Tarasov, Alexander   +1 more
core   +2 more sources

QFT on homothetic Killing twist deformed curved spacetimes

, 2011
We study the quantum field theory (QFT) of a free, real, massless and curvature coupled scalar field on self-similar symmetric spacetimes, which are deformed by an abelian Drinfel'd twist constructed from a Killing and a homothetic Killing vector field ...
A.P. Balachandran, Alexander Schenkel, C.N. Yang, D. Bahns, D.M. Eardley, H. Araki, H.J. Borchers, J. Zahn, K. Pohlmeyer, M. Gerstenhaber, N. Reshetikhin, P. Aschieri, P. Aschieri, P. Aschieri, P. Aschieri, S. Waldmann, T. Ohl   +16 more
core   +1 more source

Livestock Tango: U.S. and Latin America Dance Together, but Who Will Lead?

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT This study examines the competitiveness between Latin American and U.S. livestock and meat sectors. We employ a computable general equilibrium modeling framework to evaluate two scenarios: coordinated improvements in Latin American productivity, transport efficiency, and market access (Scenario I), and the minimum productivity gains required ...
Taís C. Menezes, Amanda M. Countryman, Dustin L. Pendell   +2 more
wiley   +1 more source

HVDC-DNN-MFO: Classifying High-Voltage Direct Current Interference Events in Geomagnetic Field Observation Data Using Deep Neural Network and Moth-Flame Optimization Algorithm

IEEE Access
Geomagnetic field observation data are valuable resources for seismic geomagnetic research. However, the construction of subways, light railroads, and high-voltage direct current transmission lines in recent years has seriously affected the output data ...
Weifeng Shan, Jun Chen, Yanwei Sui, Xinxin He, Qi Li, Lili Xing, Ruilei Zhang   +6 more
doaj   +1 more source

Robust Adaptive Model Predictive Control for Tracking in Interconnected Systems via Distributed Optimization

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT This study presents a novel Distributed Robust Adaptive Model Predictive Control (DRAMPC) for tracking in multi‐agent systems. The framework is designed to work with dynamically coupled subsystems and limited communication, which is restricted to local neighborhoods.
Fabio Faliero, Elisa Capello, Andrea Iannelli   +2 more
wiley   +1 more source

Geometric invariants properties of osculating curves under conformal transformation in Euclidean space ℝ3

Demonstratio Mathematica
An osculating curve is a type of curve in space that holds significance in the study of differential geometry. In this article, we investigate certain geometric invariants of osculating curves on smooth and regularly immersed surfaces under conformal ...
Singh Kuljeet, Sharma Sandeep, Lone Mohamd Saleem   +2 more
doaj   +1 more source

Concircular vector fields for Kantowski Sachs and Bianchi type III spacetimes

, 2017
This paper intends to obtain concircular vector fields of Kantowski Sachs and Bianch type III spacetimes. For this purpose, ten conformal Killing equations and their general solution in the form of conformal Killing vector fields are derived along with ...
Ali, Ahmad T, Khan, Suhail, Mahmood, Amjad   +2 more
core   +1 more source