Results 71 to 80 of about 11,998 (267)

A New Mechanism Enabling Micron Scale Electron–Hole Synchronized Recombination in Bulk Halide Perovskites

Advanced Optical Materials, EarlyView.
This work reports the first observation of long‐range synchronized photoluminescence blinking in vapor‐grown, fully inorganic CsPbBr3 microcrystals, extending over 10 µm. The observations contradict supertrap‐based models and link blinking to Pb‐rich growth conditions. A new mechanism is established, in which hole diffusion mediates collective electron–
Noam Veber, Roman V. Li, Eduard A. Podshivaylov, Betty Shamaev, Saar Shaek, Emma H. Massasa, Salma Lahwani, Rotem Strassberg, Kobi Cohen, Mengxia Liu, Pavel A. Frantsuzov, Yehonadav Bekenstein   +11 more
wiley   +1 more source

Finite-time synchronization for chaotic neural networks with stochastic disturbances

Advances in Difference Equations, 2020
In this paper, we focus on the problem of synchronization for chaotic neural networks with stochastic disturbances. Firstly, we provide a basic result that the systems including the drive system, response system, and error system have a unique solution ...
Xuejun Shi, Yongshun Zhao, Xiaodi Li
doaj   +1 more source

Information Transmission Strategies for Self‐Organized Robotic Aggregation

Advanced Robotics Research, EarlyView.
In this review, we discuss how information transmission influences the neighbor‐based self‐organized aggregation of swarm robots. We focus specifically on local interactions regarding information transfer and categorize previous studies based on the functions of the information exchanged.
Shu Leng, Zihan Li, Yifeng Shao, Jinhao Liu, Li Yu, Shuguang Li   +5 more
wiley   +1 more source

Identifying Physical Interactions in Contact‐Based Robot Manipulation for Learning from Demonstration

Advanced Robotics Research, EarlyView.
Robots can learn manipulation tasks from human demonstrations. This work proposes a versatile method to identify the physical interactions that occur in a demonstration, such as sequences of different contacts and interactions with mechanical constraints.
Alex Harm Gert‐Jan Overbeek, Herman van der Kooij, Douwe Dresscher, Mark Vlutters   +3 more
wiley   +1 more source

Robust Stability and Stabilization of a Class of Uncertain Nonlinear Discrete-Time Stochastic Systems with Interval Time-Varying Delays

Journal of Control Science and Engineering, 2016
This paper deals with the problems of the robust stochastic stability and stabilization for a class of uncertain discrete-time stochastic systems with interval time-varying delays and nonlinear disturbances.
Shuang Liang, Yali Dong
doaj   +1 more source

Stochastic LQR Design With Disturbance Preview

This paper considers the discrete-time, stochastic LQR problem with $p$ steps of disturbance preview information where $p$ is finite. We first derive the solution for this problem on a finite horizon with linear, time-varying dynamics and time-varying costs.
Liu, Jietian, Lessard, Laurent, Seiler, Peter   +2 more
openaire   +2 more sources

Echinoderm‐Inspired Autonomy for Soft‐Legged Robots

Advanced Robotics Research, EarlyView.
Inspired by echinoderms, a modular soft robot achieves autonomous phototaxis without a central controller or explicit communication. Each limb independently adapts its actuation timing through local sensing and short‐term memory. Coordination emerges purely from physical interactions, demonstrating resilience to changes in morphology, environment, and ...
Harmannus A. H. Schomaker, Jelle de Vries, Johannes T. B. overvelde   +2 more
wiley   +1 more source

An evolutionary game-theoretic analysis of the "multi-agent co-governance" system of unfair competition on internet platforms.

PLoS ONE
The increasingly prominent issue of unfair competition on Internet platforms (IPUC) severely restricts the healthy and sustainable development of the platform economy.
Zhen Xu, Shudan Zheng
doaj   +1 more source

ChicGrasp: Imitation‐Learning‐Based Customized Dual‐Jaw Gripper Control for Manipulation of Delicate, Irregular Bio‐Products

Advanced Robotics Research, EarlyView.
Automated poultry processing lines still rely on humans to lift slippery, easily bruised carcasses onto a shackle conveyor. Deformability, anatomical variance, and hygiene rules make conventional suction and scripted motions unreliable. We present ChicGrasp, an end‐to‐end hardware‐software co‐designed imitation learning framework, to offer a ...
Amirreza Davar, Zhengtong Xu, Siavash Mahmoudi, Pouya Sohrabipour, Chaitanya Pallerla, Yu She, Wan Shou, Philip Glen Crandall, Dongyi Wang   +8 more
wiley   +1 more source

Chronic Hypoxia Disrupts Spermatogenesis Through ASXL2–EZH2–Mediated Microtubule Destabilization

Advanced Science, EarlyView.
This study reveals the mechanism by which chronic hypoxia impairs spermatogenesis via the ASXL2–EZH2 axis, hindering the transition of spermatids from round to elongated forms. Key findings reveal that under hypoxic conditions, downregulated ASXL2 expression reduces EZH2 binding to the CEP162 promoter, leading to decreased H3K27me3 modification and ...
Jun Yin, Mengjie Zhang, Wenying Liu, Wenlong Shen, Debao Li, Hongming Miao, Fang Deng, Gang Zhang, Yi Tian, Yi Zhang, Zhihu Zhao, Bing Ni   +11 more
wiley   +1 more source