Results 141 to 150 of about 280,898 (322)

Group Rings Satisfying Generalized Engel Conditions

پژوهش‌های ریاضی, 2020
Let R be a commutative ring with unity of characteristic r≥0 and G be a locally finite group. For each x and y in the group ring RG define [x,y]=xy-yx and inductively via [x ,_( n+1)  y]=[[x ,_( n)  y]  , y].
Mojtaba Ramezan-Nassab
doaj  

From invariant measures to orbit equivalence, via locally finite groups: a new proof of a theorem of Giordano, Putnam, and Skau [PDF]

, 2021
Julien Melleray, Simon Robert
openalex  

Local Mate Competition in Finite Groups [PDF]

Evolution, 1986
Eric A, Fischer, Alan, Harper
openaire   +2 more sources

Enhanced Responsivity, Accuracy, and Stability of Aerosol Jet Printing via Mechanical Switching Valve Assisted Internal Shuttering

Advanced Science, EarlyView.
This work demonstrates ultra‐high ON‐OFF responsivity of AJP by mechanical switching valve assisted shuttering. The jet relaxation and ON‐OFF delay are substantially eliminated from greater than 35 s, maintaining patterning quality independent of the variations of printing parameters, permitting excellent process stability and universality.
Jinhang Wang, Li Meng, Shuhuan Zhang, Pan Chen, Kaiwen Wei, Beibei Zhu, Xiaoyan Zeng   +6 more
wiley   +1 more source

Integrated Ultrasound Device for Precision Bladder Volume Monitoring via Acoustic Focusing and Machine Learning

Advanced Science, EarlyView.
We present a conformable wearable ultrasound patch for noninvasive bladder volume monitoring. A flexible PZT array combined with a concave acoustic lens concentrates acoustic energy and improves depth selectivity through the anterior pelvic wall.
Long Long Cao, Feng Wen Wang, Jingwei Xue, Fulei Liu, Ming Liang Jin   +4 more
wiley   +1 more source

Locally finite $p$-groups with a left 3-Engel element whose normal\n closure is not nilpotent [PDF]

, 2020
Anastasia Hadjievangelou, Marialaura Noce, Gunnar Traustason   +2 more
openalex   +1 more source

Machine Learning Driven Window Blinds Inspired Porous Carbon‐Based Flake for Ultra‐Broadband Electromagnetic Wave Absorption

Advanced Science, EarlyView.
Inspired by the regulation mechanism of window blinds, this study designs an electromagnetic wave‐absorbing metamaterial. By introducing the magneto‐electric coupling concept and integrating it with an artificial intelligence‐based data‐driven collaborative optimization strategy, the material optimizes impedance matching performance and enhances loss ...
Zhe Wang, Wanchong Li, Lu Feng, Zaiqing Yang, Shicheng Jin, Dongxu Zhao, Xiaoyong Wu, Yan Wang, Yu Mao, Jinsong Zhang   +9 more
wiley   +1 more source

Small doubling implies small tripling for balls of large radius

Discrete Analysis
Small doubling implies small tripling for balls of large radius, Discrete Analysis 2025:9, 9 pp. In additive combinatorics, the well-known Plünnecke--Ruzsa inequalities state that if $A$ is a finite nonempty subset of an abelian group satisfying $|2A ...
Romain Tessera, Matthew Tointon
doaj   +1 more source

Nonfree almost finite actions for locally finite‐by‐virtually Z${\mathbb {Z}}$ groups [PDF]

Kang Li, Xin Ma
openalex   +1 more source

Reconfigurable Acoustofluidic Microvortices for Selective Microcargo Delivery

Advanced Science, EarlyView.
This work introduces a frequency‐encoded, reconfigurable acoustofluidic system that overcomes the low throughput and poor selectivity of conventional micro‐delivery methods. By exploiting discrete microbubble resonances to program adaptive microvortex modes, the platform enables real‐time switching and selective guidance of microscale payloads through ...
Lei Wang, Yiqiang Wu, Yiyang Tang, Hui Wei, Tianshi Lyu, Xin Zhang, Tian‐Yun Huang   +6 more
wiley   +1 more source