Results 141 to 150 of about 1,686,457 (382)

Self‐Organized Growth of Catalyst‐Free Single Crystal WnO3n‐2 (n = 25) Nanowire Bundles on Si (111) via Selective He+ Ion Irradiation

Advanced Materials Interfaces, EarlyView.
A novel and efficient method is explored to synthesize 1D single‐crystal sub‐stoichiometric WnO3n‐2 (n = 25) nanowire bundles. The approach utilizes selective low‐energy He+ ion irradiation (27 eV) on Mo‐Ni doped WOx surface, achieving efficient catalyst‐free self‐organized growth of high aspect ratio nanowires at the temperature of 700 °C.
Maryna Bilokur, Matt Thompson, Matthew Arnold, Cormac Corr   +3 more
wiley   +1 more source

Opportunities in Therapeutic mRNA Stabilization: Sequence, Structure, Adjuvants and Vectors

Advanced Therapeutics, EarlyView.
Current mRNA lipid nanoparticles rely on cold storage, which increases the cost and reduces access to the vaccines. As mRNA expands to other clinical opportunities, better methods to stabilize the medicines during shipping, storage, and delivery are needed.
Joshua A. Choe, Jacobus Burger, Jamie Jones, Apurva Panjla, William L. Murphy   +4 more
wiley   +1 more source

Effect of Collimation on Diffraction Signal-to-Background Ratios at a Neutron Diffractometer

Quantum Beam Science
High diffraction signal-to-background ratios (SBRs), the ratio of diffraction peak integrated intensity over its background intensity, are desirable for a neutron diffractometer to acquire good statistics for diffraction pattern measurements and ...
Dunji Yu, Yan Chen, David Conner, Kevin Berry, Harley Skorpenske, Ke An   +5 more
doaj   +1 more source

Neutron moderation spectrum considering inelastic scattering [PDF]

arXiv, 2018
For the first time an analytic expression was obtained for the inelastic neutron scattering law with an isotropic neutron source within the gas model, considering moderating medium temperature as a parameter. The inelastic scattering law is obtained, based on the solution of the kinematic problem of neutron inelastic scattering on a nucleus in ...
arxiv  

Phonon lifetime investigation of anharmonicity and thermal conductivity of UO2 by neutron scattering and theory.

Physical Review Letters, 2013
Inelastic neutron scattering measurements of individual phonon lifetimes and dispersion at 295 and 1200 K have been used to probe anharmonicity and thermal conductivity in UO2.
J. Pang, W. Buyers, A. Chernatynskiy, M. Lumsden, B. Larson, S. Phillpot   +5 more
semanticscholar   +1 more source

Deep‐UV Light‐Emitting Based on the hBN:S/hBN: Mg Homojunction

Advanced Science, EarlyView.
S‐atoms are selected as donor dopants to achieve the n‐type conductivity of the hBN film. A theoretical model of S‐doping hBN using DFT calculation and experimentally prepared S‐doped hBN multilayers with a recorded doping concentration of 1.21% is established.
Ransheng Chen, Qiang Li, Wannian Fang, Qifan Zhang, Jiaxing Li, Zhihao Zhang, Kangkang Liu, Feng Yun, Yanan Guo, Tao Wang, Yue Hao   +10 more
wiley   +1 more source

Absence of dynamic strain aging in an additively manufactured nickel-base superalloy

Nature Communications, 2018
Detrimental serrated plastic flow via dynamic strain aging (DSA) in conventionally processed nickel superalloys usually occurs during high temperature deformation.
Allison M. Beese, Zhuqing Wang, Alexandru D. Stoica, Dong Ma   +3 more
doaj   +1 more source

Ultrafast Exciton and Spin Dynamics of Monolayer MoSi2N4 Studied by Non‐Degenerate Pump‐Probe Transient Transmission Spectroscopy

Advanced Science, EarlyView.
The resonant energy of the A and B exciton of the new 2D material, monolayer MoSi2N4, is found to be 2.18 and 2.34 eV, respectively, indicating a spin‐splitting energy of ≈160 meV. Complex and diverse exciton dynamics are observed. The work has a profound influence on the future developments of MoSi2N4‐based optoelectronic devices and the synthesis of ...
Huiping Wu, Su Sun, Chuan Xu, Ke Chen, Wencai Ren, Tianshu Lai   +5 more
wiley   +1 more source

Scattered neutron background in thermal neutron detectors

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2018
Inelastic neutron scattering instruments require very low background; therefore the proper shielding for suppressing the scattered neutron background, both from elastic and inelastic scattering is essential. The detailed understanding of the background scattering sources is required for effective suppression.
Anton Khaplanov, Georg Ehlers, Richard Hall-Wilton, Richard Hall-Wilton, Kalliopi Kanaki, Thomas Kittelmann, E. Dian, E. Dian, E. Dian, P. Zagyvai, P. Zagyvai   +10 more
openaire   +5 more sources

Advances in Gallium Oxide: Properties, Applications, and Future Prospects

Advanced Electronic Materials, EarlyView.
This review discusses the properties and fabrication methodologies of gallium oxide. The discussion revolved around papers that are recently published and provided an overview of the current research status on gallium oxide. The discussion focused on defects, doping, and the performance of the fabricated photodetectors, as reported in the literature ...
Swapnodoot Ganguly, Krishna Nama Manjunatha, Shashi Paul   +2 more
wiley   +1 more source