Results 111 to 120 of about 3,253,485 (320)

Spatial Scattering Radiation to the Radiological Technologist during Medical Mobile Radiography. [PDF]

Bioengineering (Basel), 2023
Otomo K, Inaba Y, Abe K, Onodera M, Suzuki T, Sota M, Haga Y, Suzuki M, Zuguchi M, Chida K.   +9 more
europepmc   +1 more source

Electron-Positron Outflows from Gamma-Ray Emitting Accretion Discs

, 1999
An electron-positron atmosphere is inevitably created around a black hole accretion disc, the spectrum of which extends to MeV energies. Pairs created in photon-photon collisions outside the disc are blown away by soft radiation (which dominates the ...
Beloborodov, Andrei M.
core   +1 more source

Fractional Skyrmion Tubes in Chiral‐Interfaced 3D Magnetic Nanowires

Advanced Functional Materials, EarlyView.
In chiral 3D helical magnetic nanowires, the coupling between the geometric and magnetic chirality provides a way to create topological spin states like vortex tubes. Here, it is demonstrated how the breaking of this coupling in interfaced 3D nanowires of opposite chirality leads to even more complex topological spin states, such as fractional ...
John Fullerton, Naëmi Leo, Jakub Jurczyk, Claire Donnelly, Dédalo Sanz‐Hernández, Luka Skoric, Nicholas Mille, Stefan Stanescu, Donald A MacLaren, Rachid Belkhou, Aurelio Hierro‐Rodriguez, Amalio Fernández‐Pacheco   +11 more
wiley   +1 more source

Optimal backward light scattering by dipolar particles

Physical Review Research, 2020
The near-zero forward intensity condition for light scattering by a dielectric dipolar sphere is usually associated with the generalized second Kerker condition, at which equal amplitude electric and magnetic dipolar responses are phase-shifted by π.
Jorge Olmos-Trigo, Diego R. Abujetas, Cristina Sanz-Fernández, José A. Sánchez-Gil, Juan José Sáenz   +4 more
doaj   +1 more source

Cu‐Based MOF/TiO2 Composite Nanomaterials for Photocatalytic Hydrogen Generation and the Role of Copper

Advanced Functional Materials, EarlyView.
HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan, Marie Le Pivert, Alireza Ranjbari, Diana Dragoe, Daniel Bahena‐Uribe, Christophe Colbeau‐Justin, Christian Herrero, Dorota Rutkowska‐Zbik, Johnny Deschamps, Hynd Remita   +9 more
wiley   +1 more source

Coding Anisotropic Metasurface with Integrated Broadband Tunable Radiation and Low-Scattering Performance

Nanoscale Research Letters, 2019
In this paper, we propose a coding electromagnetic metasurface (EMMS) with integrated broadband tunable radiation and low-scattering performance. Anisotropic elements demonstrating opposite phases under x- and y-polarized incidence are investigated and ...
Li Li Cong, Xiang Yu Cao, Huanhuan Yang, Jun Gao, Tao Song   +4 more
doaj   +1 more source

On the Angular Variation of Solar Reflectance of Snow [PDF]

Spectral and integrated solar reflectance of nonhomogeneous snowpacks were derived assuming surface reflection of direct radiation and subsurface multiple scattering.
Chang, A. T. C., Choudhury, B. J.
core   +1 more source

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

Advanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong, Changfan Xu, Huaping Zhao, Yong Lei   +3 more
wiley   +1 more source

Beam Scanning with Ultra‐Low Sidelobes and In‐Band Ultra‐Low Scattering Characteristics Empowered by Single Space‐Time‐Coding Radiation‐Scattering Metasurface

Advanced Science
The integrated modulation of radiation and scattering provides an unprecedented opportunity to reduce the number of electromagnetic (EM) apertures in the platform while simultaneously enhancing communication and stealth performance.
Lixin Jiang, Yongfeng Li, Hao Yang, Mingbao Yan, Jinming Jiang, Yunwei Zhang, Zhe Qin, Wanwan Yang, Hongya Chen, Yongqiang Pang, Zhihao Guo, Lin Zheng, Jiafu Wang, Shaobo Qu   +13 more
doaj   +1 more source

A platform for all-optical Thomson/Compton scattering with versatile parameters

High Power Laser Science and Engineering
A dual-beam platform is developed for all-optical Thomson/Compton scattering, with versatile parameter tuning capabilities including electron energy, radiation energy, radiation polarization, etc.
Siyu Chen, Wenchao Yan, Mingyang Zhu, Yaojun Li, Xichen Hu, Hao Xu, Weijun Zhou, Guangwei Lu, Mingxuan Wei, Lin Lu, Xulei Ge, Boyuan Li, Xiaohui Yuan, Feng Liu, Min Chen, Liming Chen, Jie Zhang   +16 more
doaj   +1 more source