Results 51 to 60 of about 61,881 (336)

Nilpotent symmetric Jacobian matrices and the Jacobian Conjecture II

Journal of Pure and Applied Algebra, 2004
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Bondt, M.C. de, Essen, A.R.P. van den
openaire   +4 more sources

Quantifying local tumor morphological changes with Jacobian map for prediction of pathologic tumor response to chemo-radiotherapy in locally advanced esophageal cancer

Physics in Medicine and Biology, 2018
We proposed a framework to detect and quantify local tumor morphological changes due to chemo-radiotherapy (CRT) using a Jacobian map and to extract quantitative radiomic features from the Jacobian map to predict the pathologic tumor response in locally ...
S. Riyahi, Wookjin Choi, Chia-Ju Liu, H. Zhong, A. Wu, J. Mechalakos, W. Lu   +6 more
semanticscholar   +1 more source

Adaptive 4D‐Printed Vascular Stents With Low‐Temperature‐Activated and Intelligent Deployment

Advanced Functional Materials, EarlyView.
Microarchitected coronary artery stents were fabricated using a polycaprolactone (PCL)‐based shape memory polymer (SMP) composite via projection micro‐stereolithography (PµSL) 4D printing. By incorporating diethyl phthalate (DEP) as a plasticizer, the thermal transition temperature (Ttran) was modulated to about 37°C, enabling rapid and autonomous ...
Yannan Li, Yifan Pan, Chikahiro Imashiro, Chaolun Xu, Jianxian He, Jingao Xu, Kewei Song, Ze Zhang, Chen Gao, Junbo Jiang, Runhuai Yang, Kayo Hirose, Shinjiro Umezu   +12 more
wiley   +1 more source

Attacking Jacobian Problem Using Resultant Theory

مجلة بغداد للعلوم, 2022
     This paper introduces a relation between resultant and the Jacobian determinant by generalizing Sakkalis theorem from two polynomials in two variables to the case of (n) polynomials in (n) variables. This leads us to study the results of the type:
Alaa Jony, Shawki Al-Rashed
doaj   +1 more source

Topology and Material Optimization in Ultra‐Soft Magneto‐Active Structures: Making Advantage of Residual Anisotropies

Advanced Materials, EarlyView.
Residual magnetization induces pronounced mechanical anisotropy in ultra‐soft magnetorheological elastomers, shaping deformation and actuation even without external magnetic fields. This study introduces a computational‐experimental framework integrating magneto‐mechanical coupling into topology optimization for designing soft magnetic actuators with ...
Carlos Perez‐Garcia, Rogelio Ortigosa, Jesús Martínez‐Frutos, Daniel Garcia‐Gonzalez   +3 more
wiley   +1 more source

Holonomic modules and 1-generation in the Jacobian Conjecture

Comptes Rendus. Mathématique
Let $P_n$ be a polynomial algebra in $n$ indeterminates over a field $K$ of characteristic zero. An endomorphism $\sigma \in \mathrm{End}_K(P_n)$ is called a Jacobian map if its Jacobian is a nonzero scalar.
Bavula, Volodymyr V.
doaj   +1 more source

Pattern Formation in Non‐Equilibrium Architected Materials

Advanced Materials Technologies, EarlyView.
This article demonstrates an artificial mechanical system ‐ a robotic metamaterial ‐ as an accessible and versatile platform within which to explore and prescribe the reaction‐diffusion driven pattern formation hitherto associated with comparatively less accessible and versatile non‐equilibrium biological and chemical systems.
Vinod Ramakrishnan, Michael J. Frazier
wiley   +1 more source

Development of Laterally Graded X‐Ray Multilayer Optics

Advanced Materials Technologies, EarlyView.
This work presents the development of laterally graded X‐ray multilayer optics with both constant and variable lateral gradients. By precisely controlling substrate speed profiles and mask design, these multilayers achieve highly accurate lateral gradients and excellent sagittal thickness uniformity, making them ideal for spectroscopy application at ...
Arindam Majhi, Wadwan Singhapong, Wai Jue Tan, Andrey Sokolov, Stefano Agrestini, Mirian Garcia‐Fernandez, Kejin Zhou, Andrew C. Walters, Chris Bowen, Alexander J.G. Lunt, Hongchang Wang, Kawal J. Sawhney   +11 more
wiley   +1 more source

Jacobian pairs II

Journal of Pure and Applied Algebra, 1991
[For part I see ibid. 72, No. 1, 39-51 (1991; Zbl 0747.13014).] This work concerns the Jacobian conjecture. Let \(k\) be an algebraically closed field of characteristic zero. A pair of polynomials \(f,g\in k[X,Y]\) is said to be a Jacobian pair if \({\partial f\over\partial X}{\partial g\over\partial Y}-{\partial f\over\partial Y}{\partial g\over ...
openaire   +1 more source

Multiobjective Codesign Optimization of a Planar Pneumatic Artificial Muscle‐Based Snake‐Like Robot for Enhanced Agility and Energy Efficiency

Advanced Robotics Research, EarlyView.
A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley   +1 more source