Results 31 to 40 of about 16,733 (217)

Lagrangian analysis of sea-ice dynamics in the Arctic Ocean

Polar Research, 2016
In this study, we present Lagrangian diagnostics to quantify changes in the dynamical characteristics of the Arctic sea-ice cover from 2006 to 2014. Examined in particular is the evolution in finite-time Lyapunov exponents (FTLEs), which monitor the rate
Sándor Szanyi, Jennifer V. Lukovich, David G. Barber   +2 more
doaj   +1 more source

From Folding Mechanics to Robotic Function: A Unified Modeling Framework for Compliant Origami

Advanced Science, EarlyView.
A geometry‐consistent DDG framework captures compliant origami deformation from rigid‐like folding to soft panel bending. By tuning crease and panel stiffness, bistable snap‐through responses transform into smooth monostable deformation, enabling programmable stability and robot‐scale locomotion.
Bohan Zhang, Bo Wang, Huajiang Ouyang, Zhigang Wu, Haohao Bi, Jiawei Xu, Mingchao Liu, Weicheng Huang   +7 more
wiley   +1 more source

The Niger River Basin Moisture Sources: A Lagrangian Analysis

Atmosphere, 2017
The Niger River basin (NRB) is located in the important climatic region of the African Sahel. In this study we use the Lagrangian tridimensional model FLEXPART v9.0 to identify and characterise the moisture sources for the NRB.
Rogert Sorí, Raquel Nieto, Anita Drumond, Luis Gimeno   +3 more
doaj   +1 more source

Data‐Driven Discovery of Unconventional Antiferromagnets

Advanced Science, EarlyView.
A high‐throughput workflow that combines the physics‐informed pre‐screening, high‐throughput exchange calculations, Luttinger‐Tisza analysis and symmetry classification is established for accurate identification of unconventional antiferromagnets from the broad structural database.
Qirui Cui, Chenxu Liu, Anna Delin, Kaiyou Wang   +3 more
wiley   +1 more source

The Use of Mixed Eulerian-Lagrangian Displacement in Geometrically Nonlinear Analysis of Structural System

Jurnal Teknik Sipil, 2017
The paper deals with the use of mixed Eulerian-Lagrangian displacement in geometrically nonlinear analysis of structural system, in which displacement and deformation are observed from a selected referential configuration, i.e., a configuration once ...
Binsar Hariandja
doaj   +1 more source

Alternating Shear Force of Respiration Regulates Cell Interactions of Fibroblasts and Macrophages to Promote Soft Tissue Integration of Chest Wall Polyetheretherketone Implants

Advanced Science, EarlyView.
Given that PEEK chest wall implants induce shear force at the soft tissue‐implant interface due to respiratory motion in the early in vivo post‐implantation stage. We confirmed that this mechanical stimulus triggers the PIEZO1/ITGB1/YAP1 signalling axis in L929 and the STAT6/p‐STAT6 pathway in RAW264.7, which in turn mediates adhesion and migration of ...
Rou Huang, Yangfan Huo, Jin Liu, Sida Liu, Minghai Ma, Hao Guo, Yuanquan Zhang, Xing Li, Xiao Liang, Jiawei Xiu, Ying Sun, Lijun Huang, Xiaolong Yan, Weiwei Wu, Lei Wang   +14 more
wiley   +1 more source

Constraint structure of the generalized Proca model in the Lagrangian formalism

Heliyon
We introduce a novel Lagrangian approach to analyze the dynamical structure of the generalized Proca theory (GP). This method incorporates the A-Z constraint structure of the model within the Lagrangian formalism, providing a precise determination of the
Zahra Molaee, Ahmad Shirzad
doaj   +1 more source

Twistor formulation of a massive particle with rigidity

Nuclear Physics B, 2018
A massive rigid particle model in (3+1) dimensions is reformulated in terms of twistors. Beginning with a first-order Lagrangian, we establish a twistor representation of the Lagrangian for a massive particle with rigidity.
Shinichi Deguchi, Takafumi Suzuki
doaj   +1 more source

A simple kinematic model for the Lagrangian description of relevant nonlinear processes in the stratospheric polar vortex [PDF]

Nonlinear Processes in Geophysics, 2017
In this work, we study the Lagrangian footprint of the planetary waves present in the Southern Hemisphere stratosphere during the exceptional sudden Stratospheric warming event that took place during September 2002.
V. J. García-Garrido, J. Curbelo, J. Curbelo, C. R. Mechoso, A. M. Mancho, S. Wiggins   +5 more
doaj   +1 more source

Low‐Power Control Of Resistance Switching Transitions in First‐Order Memristors

Advanced Electronic Materials, EarlyView.
Joule losses are a serious concern in modern integrated circuit design. In this regard, minimizing the energy necessary for programming memristors should be handled with care. This manuscript presents an optimal control framework, allowing to derive energy‐efficient programming voltage protocols for resistance switching devices. Following this approach,
Valeriy A. Slipko, Alon Ascoli, Fernando Corinto, Yuriy V. Pershin   +3 more
wiley   +1 more source