Results 81 to 90 of about 808,274 (355)

Physical Origin of Temperature Induced Activation Energy Switching in Electrically Conductive Cement

Advanced Science, EarlyView.
The temperature‐induced Arrhenius activation energy switching phenomenon of electrical conduction in electrically conductive cement originates from structural degradation within the biphasic ionic‐electronic conduction architecture and shows percolation‐governed characteristics: pore network opening dominates the low‐percolation regime with downward ...
Jiacheng Zhang, Xinyuan Ke, Andrew Heath, Richard J. Ball, Jiawei Xie, Jinchen Fan, Guisheng Li, Kevin Paine   +7 more
wiley   +1 more source

Breaking the Toughness‐Stretchability Trade‐Off in Hydrogels with Dynamic Hydrogen Bonding

Advanced Science, EarlyView.
A novel nanocomposite hydrogel architecture overcomes the inherent conflict between toughness and stretchability by integrating uniformly dispersed aminopropyl‐hybrid‐phyllosilicate nanosheets within a polyacrylamide matrix. This design leverages a dynamic hydrogen‐bonding network to facilitate efficient energy dissipation and self‐recovery.
Yining Gao, Yong Tao, Roland J.‐M. Pellenq, Fazhou Wang   +3 more
wiley   +1 more source

Erica Chenoweth & Maria J. Stephan (2011). Why civil resistance works: The strategic logic of nonviolent conflict. New York: Columbia University Press.

Conflict & Communication Online, 2012
Book ...
Robert Allen Kezer
doaj  

Changes and continuity in Japanese official development assistance : a thesis presented in partial fulfilment of the requirements for the degree of Master of Arts in Sociology at Massey University [PDF]

, 2005
This paper is about Japanese official development assistance (ODA), based on document research and monitoring of media reports in the period between January and October, 2005.
Carter, Matthew David
core  

All‐in‐One Underwater Quality Evaluation Metamaterial With Mechanical Robustness, Sound Attenuation, and Diffuse Reflection

Advanced Science, EarlyView.
In this work, a bioinspired all‐in‐one underwater quality evaluation metamaterial, combining sound attenuation, diffuse reflection, and mechanical robustness, is proposed based on jumping spider locomotion and human skeletal biomechanics. Meanwhile, a CNN‑driven quality evaluation framework is established for theoretically dimension‐reduced ...
Hongze Li, Zhenyu Li, Jinshui Yang, Jianhao Wu, Yidan Chen, Linzhi Wu, Hong Hu, Penglin Gao, Yegao Qu   +8 more
wiley   +1 more source

Engineered Interfacial Control for Suppression of Phase Instability: Operando Visualization from Device to Module Scale

Advanced Science, EarlyView.
Operando real‐time current density–voltage absorption spectroscopy visualizes spatial phase evolution in mixed‐halide perovskites from device to module scale. Phase instability preferentially initiates in regions with insufficient carrier extraction, revealing electrical boundary conditions as governing factors.
Hangyeol Choi, Soo Woong Jeon, Wookyung Jeon, You‐Hyun Seo, Gill Sang Han, Myunghun Shin, Ji‐Sang Park, Jun Hong Noh, Yohan Yoon   +8 more
wiley   +1 more source

Basic Mechanical Properties of Self-Compacting Concrete Prepared with Aeolian Sand and Recycled Coarse Aggregate

Buildings
To protect the environment and reduce the consumption of natural resources, this study investigated the performance of self-compacting concrete (SCC) utilizing aeolian sand (AS) as a replacement for fine aggregate and recycled coarse aggregate (RCA) as a
Shiqi Zheng, Qing Liu, Fengxia Han, Shan Liu, Tong Han, Hao Yan   +5 more
doaj   +1 more source

Human Capital and Growth in the Post-Bellum South: A Separate but Unequal Story [PDF]

This paper tests the importance of human capital in explaining convergence across states of the United States after 1880. Human capital levels are found to matter not only to a state's income level but also to its growth rate through technological ...
Connolly, Michelle P.
core   +1 more source

Ambipolar Organic–Inorganic Heterostructure Transistor Array for Integrated Visual Information Processing

Advanced Science, EarlyView.
We present an organic–inorganic heterostructure transistor array for neuromorphic computing, achieving 95.6% MNIST accuracy and 1.2 fJ per operation, with dynamic spatiotemporal encoding and precise vehicle direction detection under combined optical and electrical stimulation.
Wen‐Min Zhong, Wenbin Zhang, Yu‐Xiang Zeng, JiYu Zhao, Ziqi Jia, Loganathan Veeramuthu, Guanglong Ding, Yan Yan, Meng Zhang, Su‐Ting Han, Vellaisamy A. L. Roy, Fengyun Wang, Chi‐Ching Kuo, Ye Zhou   +13 more
wiley   +1 more source

Experimental study on mechanical properties of polypropylene fiber foamed concrete after exposure to high temperatures

Case Studies in Construction Materials
Foam concrete (FC) possesses beneficial properties such as low density and good thermal insulation compared to conventional concrete, but its high-temperature mechanical behavior remains to be fully understood.
Alipujiang Jierula, Xiaolong Li, Weicheng Wang, Hushitaer Niyazi, Shuhong Wang   +4 more
doaj   +1 more source