Results 71 to 80 of about 589 (217)

Efficient Cholesteric Liquid Crystal Waveguide Polarizing Splitters for High‐Sensitivity Chip‐Scale Atomic Magnetometry

Advanced Science, EarlyView.
An integrated polarimetry architecture based on a cholesteric liquid crystal waveguide polarization splitter overcomes the volumetric bottleneck in chip‐scale atomic magnetometers. By leveraging Bragg‐selective reflection and total‐internal‐reflection‐induced helicity inversion, this ultrathin device enables efficient circular polarization splitting ...
Zhibo Cui, Chuang Wang, Xiangyang Zhou, Gaopu Hou, Jinsheng Hu, Mao Ye, Xu Xiao, Zhen Chai, Yishi Weng, Yuning Zhang   +9 more
wiley   +1 more source

Advances in Se Wide‐Bandgap Photovoltaics and TexSe1‐x SWIR Photodiodes

Advanced Science, EarlyView.
In this review, fundamental properties and current challenges in Se photovoltaics (PVs) for tandem and indoor PVs and TexSe1‐x alloys for short wave infrared photodiodes are discussed. A case is made for the practicality of elemental chalcogenide optoelectronics, and a pathway toward resolving the key challenges in these respective technologies is ...
Adam D. Alfieri, Deep Jariwala
wiley   +1 more source

Performance Analysis of Tropospheric Radio Refractivity along with Refractivity Gradient and Effective Earth Radius in the Coastal Zone of Nigeria

UMYU Scientifica Journal
Radio refractivity is the ratio of the velocity of radio waves in a specific medium to that in free space.  Radio waves propagate according to variations in tropospheric radio refractive index.
Gazali Bello, Davidson Odafe Akpootu, Aminu Bello Zoramawa, Abdullahi Yusuf   +3 more
doaj   +1 more source

Bridging Horizontal to Vertical Radiative Cooling

Advanced Science, EarlyView.
Radiative cooling materials are mature but only work facing the sky, confining them to rooftops. Instead of developing new ones, this system bridges existing horizontal coolers to vertical windows using blades outside the glass. On an occupied urban building, windows stay up to 1.4°C below air temperature while preserving daylight, outward views, and ...
Xiangyu Meng, Gan Huang
wiley   +1 more source

Ensemble Based Estimation of Wet Refractivity Indices Using a Functional Model Approach

Earth and Space Science
The estimation of the wet refractivity indices is crucial for applications like weather predictions or improving the accuracy of real‐time positioning techniques.
Masoud Dehvari, Saeed Farzaneh, Ehsan Forootan   +2 more
doaj   +1 more source

NbN Broadband Plasmonic Absorbers for Efficient Hot‐Carrier Injection Toward Improved Solar‐to‐Hydrogen Conversion

Advanced Science, EarlyView.
Niobium nitride (NbN) broadband plasmonic metasurface absorbers provide an efficient platform for solar‐energy conversion through hot‐carrier injection. Quasi‐epitaxial NbN features a low work function of 4.0 eV, reducing the interfacial injection barrier and facilitating charge transfer into adjacent photocatalysts.
Tzu‐Yu Peng, Tse‐Fu Huang, Takeshi Yamaguchi, Jia‐Wern Chen, Hsing‐Yu Kuo, Ying‐Rang Zhuang, Hung Wei Shiu, Seongmin Im, Yang Zhao, Takuo Tanaka, Ho‐Hsiu Chou, Yu‐Jung Lu   +11 more
wiley   +1 more source

Spatiotemporal trends and seasonal variations in meteorological parameters and radio refractivity across Nigeria’s eco-climatic zones

Discover Geoscience
The propagation of radio waves/signals is strongly influenced by atmospheric parameters, leading to signal degradation, unpredictable communication ranges, and link blackouts; however, this understanding has not been fully explored across diverse eco ...
Emmanuel P. Agbo, Ekong U. Nathaniel, Jewel E. Thomas, Golden C. Offorson, Ugochukwu Nkajoe, Emmanuel G. Ndoma   +5 more
doaj   +1 more source

Water‐Soluble POSS Promotes Concurrent Coalescence and Crosslinking for Multiscale‐Reinforced, Coalescent‐Free Waterborne Coatings

Advanced Science, EarlyView.
Water‐soluble amine‐functionalized polyhedral oligomeric silsesquioxane promotes concurrent latex coalescence and crosslinking, allowing epoxy‐functional particles to form continuous films without added volatile coalescing agents. The resulting multiscale‐reinforced waterborne coatings combine high strength, toughness, optical transparency, scratch ...
Chao Wang, Bin Wu, Lin Li, Yibo Ru, Xiaohe Zhang, Minlong Wang, Ruoyan Yang, Jie An   +7 more
wiley   +1 more source

Propagation of THz radiation in air over a broad range of atmospheric temperature and humidity conditions. [PDF]

Sci Rep, 2023
Taleb F, Alfaro-Gomez M, Al-Dabbagh MD, Ornik J, Viana J, Jäckel A, Mach C, Helminiak J, Kleine-Ostman T, Kürner T, Koch M, Mittleman DM, Castro-Camus E.   +12 more
europepmc   +1 more source

Hybrid Metal–Organic Framework‐Derived Dual Active Site Catalysts Enabling Surface‐Enriched Cathode and Modified Zinc Anode for Long‐Life Zinc–Air Batteries

Advanced Science, EarlyView.
This work demonstrates the implementation of MOF‐assisted anode and cathode materials for prolonged cycling of zinc‐air batteries with strong redox capability and structural stability. ABSTRACT The surface modification of zinc anodes and the development of effective cathode dual‐functional oxygen electrocatalysts remain of paramount interest for ...
Ramasamy Santhosh Kumar, Duraisami Kaviyarasu, Dilmurod Sayfiddinov, Murugavel Kathiresan, Pandian Mannu, Chung‐Li Dong, Arul Manuel Stephan, Dong Jin Yoo   +7 more
wiley   +1 more source