Results 51 to 60 of about 6,395 (309)

Beyond Electrostatics: Anion‐π+ Orbital Hybridization Underpins High‐Performance Chloride Storage in Poly(arylamine) Organic Cathodes

Advanced Science, EarlyView.
The fundamental nature of anion storage in p‐type organic cathodes is elucidated using rigid poly(arylamine) frameworks. This study reveals a hybrid covalent‐ionic mechanism for anion‐π+ interactions, driven by synergistic orbital hybridization and electrostatic attraction.
Tiantian She, Jiena Weng, Jie Wang, Qiao Xi, Yangyang Zhang, Zijie Zhang, Zongqiong Lin, Wei Huang   +7 more
wiley   +1 more source

Machine Learning Accelerated Non‐Adiabatic Molecular Dynamics Elucidates Local Polarization Effects on Non‐radiative Recombination in Halide Perovskites

Advanced Science, EarlyView.
This work proposes and constructs the Hefei‐NAMD‐S framework based on machine learning stacked models to investigate the relationship between local polarization and non‐radiative recombination. The results indicate that, compared with A‐site local polarization, B‐site local polarization shows a more evident association with the non‐radiative ...
Bing Yang, Xiaoli Wei, Bo Cai, Yan Yang, Xinghai Zhu, Yi Liu, Junmin Xia, Lihui Liu, Kun Cao, Wei Shen, Pengfei Xia, Shufen Chen, Siyu Chen, Jin Zhao   +13 more
wiley   +1 more source

Stress Accumulation Induced by Ion Exchange for Synchronous Modulation of Mode and Wavelength in Microlasers

Advanced Science, EarlyView.
This work demonstrates a paradigm‐shifting strategy to simultaneously achieve broadband wavelength tunability and single‐mode control within a single perovskite microwire structure. Using a facile heating‐assisted solid–solid anion‐exchange strategy, we synthesized phase‐pure CsPbClxBr3‐x microwires that exhibit the widest reported continuous lasing ...
Bingwang Yang, Lingling Sun, Jinhui Wang, Jitao Li, Peng Wan, Daning Shi, Caixia Kan, Mingming Jiang   +7 more
wiley   +1 more source

Telecomunicaciones y protección de datos: interconexiones de redes, datos de tráfico y conservación de datos

Revista Vasca de Administración Pública, 2020
The telecommunications sector (or electronic communications sector) is constantly putting data protection to the test and, it is possible, that we see how this sector empties this fundamental right out.
Andoni Polo Roca
doaj   +1 more source

Economic Regulation of the Telecommunications Sector in South Africa: 2009-2014

The African Journal of Information and Communication, 2015
South Africa's electronic communications sector regulator, the Independent Communications Authority of South Africa (ICASA), has a mixed track record in carrying out its mandate.
Ryan Hawthorne
doaj   +1 more source

Photoelectric‐Coupled Ferroelectric Heterojunctions for Ultrahigh NO2 Sensing With Polarization‐Memory‐Assisted Interfacial Modulation

Advanced Science, EarlyView.
This study demonstrates a Bi2WO6/SrBi2Ta2O9 heterojunction where light‐driven ferroelectric polarization reversal couples with persistent photoconductivity, enabling exclusive NO2 selective room‐temperature sensing. The device achieves a two‐order‐of‐magnitude sensitivity enhancement over an unpolarized device, a sub‐ppb detection limit, and robust ...
Liping Tan, Xuefeng Hu, Ming Zhou, Weiwei Qing, Along Li, Zilong Wang, Mudan Feng, Shuang Zhao, Xiaoliang Wang, Peipei Li, Yali Bi, Wei Zhang   +11 more
wiley   +1 more source

Mechanistic Insight Into the Polymorph‐Dependent Photosalient Effect of a White Light or Two‐Photon Activated Photoreactive Molecular Salt

Angewandte Chemie, EarlyView.
Photocycloaddition in stilbene‐type salt polymorphs exhibit distinct light‐driven responses: OHT‐TI shows a violent photosalient effect under visible and NIR (two‐photon) irradiation, whereas OHT‐TII reacts statically. Packing and computational analysis reveals that shell‐like structures in OHT‐TI frustrate structural relaxation, accumulating explosive
Emanuela Santagata, Francesco Ambrosio, Amedeo Capobianco, Andrea Peluso, Giorgia Rizzi, Stijn Van Cleuvenbergen, Yovan de Coene, Koen Clays, Paolo Pio Mazzeo, Roberto Centore, Fabio Borbone   +10 more
wiley   +2 more sources

5G mobile data transmission and fiber optic: complementarity or substitutability?

Nowoczesne Systemy Zarządzania
Research objectives and hypothesis/research questions The aim of the study was to answer the question: do the data transfer parameters using mobile networks and fiber optics support the hypothesis of substitutability between the two media?
Marcin Zieliński
doaj   +1 more source

Junction Physics and Architectural Paradigms in Optoelectronic Semiconductor Fibers

Advanced Science, EarlyView.
Optoelectronic fibers are emerging as a key platform for distributed sensing, energy harvesting, and optical communication in deformable systems. Their performance is fundamentally governed by junction formation under confined, dynamic processing conditions.
Hailiang Wang, Wenshu Ouyang, Yuhang Xiao, Wei Yan, Meifang Zhu   +4 more
wiley   +1 more source

Low‐Power Control Of Resistance Switching Transitions in First‐Order Memristors

Advanced Electronic Materials, EarlyView.
Joule losses are a serious concern in modern integrated circuit design. In this regard, minimizing the energy necessary for programming memristors should be handled with care. This manuscript presents an optimal control framework, allowing to derive energy‐efficient programming voltage protocols for resistance switching devices. Following this approach,
Valeriy A. Slipko, Alon Ascoli, Fernando Corinto, Yuriy V. Pershin   +3 more
wiley   +1 more source