Results 101 to 110 of about 355,696 (255)

Relativistic segnificance of curvature tensors

International Journal of Mathematics and Mathematical Sciences, 1982
In thi paper new curvature tensors have been defined on the lines of Weyl's projective curvature tensor and it has been shown that the “distribution” (order in which the vectors in question are arranged before being acted upon by the tensor in question ...
G. P. Pokhariyal
doaj   +1 more source

Curvature coordinates to describe the explosion of Chernobyl’s reactor core in April 1986, using the tensor equations

Sistemnì Doslìdženâ ta Informacìjnì Tehnologìï, 2017
This research analyzes the process of the explosion of the reactor core of Chernobyl nuclear plant in April 1986, using the tensor equations. These tensor equations show a movement of a vector in the three dimensional curvature coordinates of time, water
Yoshio Matsuki, Petro I. Bidyuk
doaj   +1 more source

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

Advanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng, Qian Yao, Yanan Sun, Hongyu Lv, Zhongchao Bai, Guoliang Zhang, Nana Wang, Jian Yang   +7 more
wiley   +1 more source

Electrocapillary Modulated Interfacial Tension Amplifies Liquid Metal Transduction

Advanced Functional Materials, EarlyView.
This study presented an electrocapillary‐enhanced magnetohydrodynamic pumping strategy that harnesses the Lorentz force and interfacial tension modulation of liquid metal droplets to achieve amplified fluidic power. The system enabled low‐voltage, self‐oscillating fluidic transduction with enhanced pressure and flow generation, supporting compact ...
Saba Firouznia, Ciqun Xu, Michael D. Dickey, Jonathan Rossiter   +3 more
wiley   +1 more source

PERFECT FLUID SPACETIMES WITH HARMONIC GENERALIZED CURVATURE TENSOR [PDF]

We show that n-dimensional perfect fluid spacetimes with divergence-free conformal curvature tensor and constant scalar curvature are generalized RobertsonWalker (GRW) spacetimes; as a consequence a perfect fluid Yang pure space is a GRW spacetime.
Suh, Young Jin, Mantica, Carlo Alberto, De, Uday Chand, Molinari, Luca Guido   +3 more
core   +1 more source

Exact and Approximate Quadratures for Curvature Tensor Estimation

, 2005
Accurate estimations of geometric properties of a surface from its discrete approximation are important for many computer graphics and geometric modeling applications.
Belyaev, A., Seidel, H. ; https://orcid.org/, Langer, T.   +2 more
core   +1 more source

On conharmonic curvature tensor of six-dimensional Kählerian submanifolds of Cayley algebra

Дифференциальная геометрия многообразий фигур
Conharmonic transformations are conformal transformations that preserve the property of harmonicity of smooth functions. This type of transformation was introduced into consideration in the 50s of the last century by the Japanese mathematician Y.
G. A. Banaru
doaj   +1 more source

About differential equations of the curvature tensors of a fundamental group and affine connections

Дифференциальная геометрия многообразий фигур, 2019
The principal bundle is considered, the base of which is an n-dimen­sional smooth manifold, and the typical fiber is an r-fold Lie group. Struc­ture equations for the forms of the fundamental group and affine connec­tions are given, each of which ...
N. Ryazanov
doaj   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

Advanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas, Marzia Dulal, Sophia K. Novoselov, Victoria K. Novoselov, Kostya S. Novoselov, Shaila Afroj, Nazmul Karim   +6 more
wiley   +1 more source

Finsler geometry on higher order tensor fields and applications to high angular resolution diffusion imaging. [PDF]

, 2009
We study 3D-multidirectional images, using Finsler geometry. The application considered here is in medical image analysis, specifically in High Angular Resolution Diffusion Imaging (HARDI) (Tuch et al. in Magn. Reson. Med.
Florack, L.M.J., Luc Florack, Florack, Luc, Florack, LMJ Luc, Astola, Laura, Florack, L., Astola, LJ Laura, Laura Astola, Astola, L.J., Astola, L.   +9 more
core   +2 more sources