Results 121 to 130 of about 151,917 (318)

Ionic Transportation Induced Electric Field Modulation in Porous Ecoflex/PTFE with Confined Liquid for High‐Performance Contact Electrification Power Generation

open access: yesAdvanced Functional Materials, EarlyView.
Porous Ecoflex/PTFE composite with encapsulated liquid generates electricity through ionic migration induced by dynamic pore deformation, creating non‐uniform electric fields that drive charge induction on electrodes. This mechanism enhances charge transfer and ensures stable contact electrification performance, achieving 12 V and 4 nC with consistent ...
Xiangkun Bo   +5 more
wiley   +1 more source

Zoology of Atlas-Groups: Dessins D’enfants, Finite Geometries and Quantum Commutation

open access: yesMathematics, 2017
Every finite simple group P can be generated by two of its elements. Pairs of generators for P are available in the Atlas of finite group representations as (not necessarily minimal) permutation representations P .
Michel Planat, Hishamuddin Zainuddin
doaj   +1 more source

Normal automorphisms of relatively hyperbolic groups

open access: yes, 2010
An automorphism of a group G is normal if it fixes every normal subgroup of G setwise. We give an algebraic description of normal automorphisms of relatively hyperbolic groups.
D. Osin   +3 more
core   +1 more source

3D Printing Innovations in Polymeric Porous and Patterned Architecture

open access: yesAdvanced Functional Materials, EarlyView.
Polymeric foams occupy a unique structural space between dense solids and open networks, where engineered void fraction governs mechanical compliance, thermal resistance, and mass transport. Additive manufacturing now enables precise spatial control over cellular architecture, unlocking designer foam structures across applications spanning crash ...
Dhanush Patil   +13 more
wiley   +1 more source

Dynamic Interfacial Chemistry of Choline Chloride as Electrolyte Additive for Stable Zn‐Iodine Batteries

open access: yesAdvanced Functional Materials, EarlyView.
Choline chloride (ChCl) additive enables dynamic interface engineering in Zn‐I2 batteries by forming hydrophobic polyiodide complexes and a Zn‐stabilizing Ch+‐rich layer under electric field modulation. This dual‐function strategy suppresses iodine hydrolysis and dendrite formation, while optimizing Zn2+ solvation and transport for high‐efficiency ...
Xiaoyu Bi   +16 more
wiley   +1 more source

Invertible Graphs of Finite Groups [PDF]

open access: yesComputer Science Journal of Moldova, 2018
We investigate some properties of invertible graphs of finite groups, which are newly defined in this paper. The main results have been proved using finite group classification.
T. Chalapathi, R.V.M.S.S. Kiran Kumar
doaj  

ON DECOMPOSABILITY OF FINITE GROUPS [PDF]

open access: yesJournal of the Korean Mathematical Society, 2004
Let \(G\) be a finite group and \(N_G\) be the set of proper normal subgroups of \(G\). An element \(N\) of \(N_G\) is said to be \(n\)-decomposable if \(N\) is a union of \(n\) conjugacy classes of \(G\). Here we denote \(n\) by \(ncc(N)\). Suppose \(K_G=\{ncc(N)\mid N\triangleleft G\}\), \(K_G\) is a non-empty subset of positive integers.
openaire   +2 more sources

Ends of groups : a computational approach [PDF]

open access: yes
We develop ways in which we can find the number of ends of automatic groups and groups with solvable word problem. In chapter 1, we provide an introduction to ends, splittings, and computa- tion in groups. We also remark that the `JSJ problem'
Clow, Andrew David Menzies
core  

Blood Biomarkers and Surface‐Enhanced Raman Spectroscopy for Gout: A Comprehensive Review

open access: yesAdvanced Functional Materials, EarlyView.
Schematic illustrating gout disease progression from asymptomatic hyperuricemia to chronic tophaceous disease, highlighting the limitations of conventional imaging and biochemical diagnostics and the potential of engineered SERS platforms for ultrasensitive blood‐based detection of urate‐related biomarkers across disease stages, with the color gradient
Isuri Perera   +6 more
wiley   +1 more source

Character expansiveness in finite groups [PDF]

open access: yesInternational Journal of Group Theory, 2013
We say that a finite group $G$ is conjugacy expansive if for anynormal subset $S$ and any conjugacy class $C$ of $G$ the normalset $SC$ consists of at least as many conjugacy classes of $G$ as$S$ does.
Attila Maroti   +2 more
doaj  

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