Results 91 to 100 of about 387,211 (278)

Explanation of software entropy by golden ratio and logarithmic spiral

, 2007
Explanation of software entropy by golden ratio and logarithmic spiral is presented in this paper. Basic entropy definitions and understanding entropy in context of software system is given in the beginning of this paper.
Vlajić, Siniša
core   +1 more source

Remarkable curves as images of circles and lines under conformal maps

Дифференциальная геометрия многообразий фигур, 2018
We consider images of a family of circles under some conformal maps. It is shown that the images of these lines are remarkable curves, such as cardioid, lemniscate of Bernoulli, logarithmic spiral.
A. Kochina
doaj  

Flexible Dual-Band Ultrathin Frequency Selective Surface With Polarization Independence, Angular Stability, and Bending Insensitivity

IEEE Access
This paper introduces a novel ultrathin frequency selective surface (FSS) based on interconnected logarithmic spiral geometries. The structure is fabricated on a flexible polyimide substrate with a thickness of 0.05 mm, a relative permittivity of 4.3 ...
Maciel Alves de Oliveira, Ruann Victor de Andrade Lira, Alfredo Gomes Neto, Juliete da Silva Souza, Antonio Luiz Pereira de Siqueira Campos, Alexandre Jean Rene Serres   +5 more
doaj   +1 more source

Stability of generalized Newton difference equations

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2012
In the paper we discuss a stability in the sense of the generalized Hyers-Ulam-Rassias for functional equations Δn(p, c)φ(x) = h(x), which is called generalized Newton difference equations, and give a sufficient condition of the generalized Hyers-Ulam ...
Wang Zhihua, Shi Yong-Guo
doaj   +1 more source

DESIGN AND OPTIMISATION OF TEETH FOR THE 5TD-1200 SOYBEAN THRESHER [PDF]

Engenharia Agrícola
Drum speed is a key parameter controlling threshing intensity: excessively high speeds cause a high proportion of broken grains (due to uneven impact), while excessively low speeds leave more unthreshed grains.
Yujiao Teng, Mengran Cui, Shunchang Guo, Bendi Qi, Xin Feng   +4 more
doaj   +1 more source

Increased Disarray of Extracellular Matrix Collagen‐I Fiber Network and Compromised Biomechanics in Aortae From Marfan‐Syndrome Mice Assessed Through Combined Opto‐Biomechatronics

Advanced Science, EarlyView.
Combined structure‐function assessment in aortic rings from Marfan mice using MechaMorph Opto‐Biomechatronics technology relates increased elasticity (stiffness) and dynamic viscosity and less ordered extracellular matrix 3D‐structure (collagen) as potential causes for impaired Windkessel function and compromised haemodynamics in Marfan's syndrome ...
Dominik Schneidereit, Anika Nagel, Vanessa I. T. Zwaans, Laureen Schurr, Jonas Ahr, Michael Haug, Anna Piluso, Alexandra Sporkova, Matthias Karck, Andreas H. Wagner, Oliver Friedrich   +10 more
wiley   +1 more source

Stretchable Energy Storage with Eutectic Gallium Indium Alloy

Advanced Energy Materials, Volume 15, Issue 11, March 18, 2025.
A highly stretchable liquid metal‐based electrode is developed via a one‐step process, retaining conductivity and capacitance after mechanical deformation up to 900% strain. The stretchable all‐solid‐state device provides a areal energy density of 43 µWh cm⁻2 after 150% strain.
Adit Gupta, Noah Al‐Shamery, Jian Lv, Gurunathan Thangavel, Jinwoo Park, Daniel Mandler, Pooi See Lee   +6 more
wiley   +1 more source

MATHEMATICAL CHARACTERIZATION OF THE NATURAL SPIRAL OF BEAUTY, HARMONY AND BALANCE

Journal of Industrial Design and Engineering Graphics, 2014
This paper aims to reveal one aspect of the natural implications of mathematics. Specifically, based on the logarithmic spiral and natural logarithm, based on the number e, extending the idea of the natural spiral.
STANCIU Virgil, PAVEL Cristina
doaj  

Bio-inspired programmable metamaterials with logarithmic spiral hierarchy for energy absorption

Materials & Design
To enable programmable energy-absorbing buffers, a rotation-driven recursive generation rule is introduced into a conventional hexagonal honeycomb to create a self-similar chiral hierarchical honeycomb (SCHH) with multilevel nesting. Closed-form geometry
Zhen Cui, Zibo Wang, Xincheng Yin, Peng Jin   +3 more
doaj   +1 more source

A Breadth‐First Pruned‐Enriched Rosenbluth Method for Force–Extension Simulations of Confined Semiflexible Chains

Advanced Intelligent Discovery, EarlyView.
The behaviors of semiflexible polymers such as DNA and protein are often reshaped by coupled interactions. Monte Carlo simulations assist in studying these systems. This work recasts the traditional chain‐growth strategy into a new framework: a fixed number of chains grow synchronously, while less relevant chains to the target system are removed and ...
Yihan Zhao, Jizeng Wang
wiley   +1 more source