Zobrazeno 1 - 10
of 3 718
pro vyhledávání: '"W. H. Li"'
Autor:
W. H. Li, A. C. Bartnik, A. Fukasawa, M. Kaemingk, G. Lawler, N. Majernik, J. B. Rosenzweig, J. M. Maxson
Publikováno v:
Physical Review Accelerators and Beams, Vol 27, Iss 8, p 084401 (2024)
Achieving maximum electron beam brightness in photoinjectors requires detailed control of the 3D bunch shape and precise tuning of the beam focusing. Even in state-of-the-art designs, slice emittance growth due to nonlinear space charge forces and pa
Externí odkaz:
https://doaj.org/article/3413cd8589c6472a87256a5e61ae2318
Publikováno v:
APL Materials, Vol 10, Iss 7, Pp 071109-071109-11 (2022)
Direct fabrication of electroactive shape memory polymer composites (eSMPCs) into complex non-planar geometries is highly desirable to enable remotely deployable, form-functional structures. However, traditional processes such as injection molding, c
Externí odkaz:
https://doaj.org/article/0c3fc829bc12445f8972560fe3e6bdf5
Autor:
W. H. Li, C. J. R. Duncan, M. B. Andorf, A. C. Bartnik, E. Bianco, L. Cultrera, A. Galdi, M. Gordon, M. Kaemingk, C. A. Pennington, L. F. Kourkoutis, I. V. Bazarov, J. M. Maxson
Publikováno v:
Structural Dynamics, Vol 9, Iss 2, Pp 024302-024302-11 (2022)
We report the design and performance of a time-resolved electron diffraction apparatus capable of producing intense bunches with simultaneously single digit micrometer probe size, long coherence length, and 200 fs rms time resolution. We measure the
Externí odkaz:
https://doaj.org/article/6ac30e80a69740f683ef3067f15bdcb4
Autor:
M. Gordon, W. H. Li, M. B. Andorf, A. C. Bartnik, C. J. R. Duncan, M. Kaemingk, C. A. Pennington, I. V. Bazarov, Y.-K. Kim, J. M. Maxson
Publikováno v:
Physical Review Accelerators and Beams, Vol 25, Iss 8, p 084001 (2022)
Ultrafast electron diffraction (UED) is a technique in which short-pulse electron beams can probe the femtosecond-scale evolution of atomic structure in matter driven far from equilibrium. As an accelerator physics challenge, UED imposes stringent co
Externí odkaz:
https://doaj.org/article/47b5cff10e634d19b1a0f1b42b855f64
Publikováno v:
Journal of Applied Fluid Mechanics, Vol 10, Iss 5, Pp 1375-1386 (2017)
It is well known that the train nose shape has significant influence on the aerodynamic characteristics. This study explores the influence of four kinds of nose shapes (fusiform, flat-broad, bulge-broad, ellipsoidal) on the aerodynamic performance of
Externí odkaz:
https://doaj.org/article/42e181a2cfd6478d83eff5085187bf56
Autor:
D. L. Wen, Z. Y. Chen, W. H. Li, M. H. Qin, D. Y. Chen, Z. Fan, M. Zeng, X. B. Lu, X. S. Gao, J.-M. Liu
Publikováno v:
Physical Review Research, Vol 2, Iss 1, p 013166 (2020)
Searching for a new scheme to control the antiferromagnetic (AFM) domain wall is one of the most important issues for AFM spintronic devices. In this work, we study theoretically the domain wall motion of an AFM nanowire, driven by the axial anisotro
Externí odkaz:
https://doaj.org/article/e5ad78ce80174d6ba85370fdf37ef5bd
Publikováno v:
Applied and Environmental Soil Science, Vol 2016 (2016)
A novel gel-based slow/controlled release fertilizer (G-CRF) was developed, which was produced by combining various natural, seminatural, and/or synthetic organic macromolecule materials and natural inorganic mineral with conventional NPK fertilizers
Externí odkaz:
https://doaj.org/article/a8bf8d2442c24b91b5a8e3c95fe48261
Publikováno v:
Biogeosciences, Vol 7, Iss 3, Pp 1117-1132 (2010)
Understanding the mechanistic links between environmental drivers, human disturbance, plant functional traits, and ecosystem properties is a fundamental aspect of biodiversity-ecosystem functioning research. Recent studies have focused mostly on leaf
Externí odkaz:
https://doaj.org/article/e19e1f3de62649ecb4db8056342b9124
Publikováno v:
AIP Advances, Vol 5, Iss 7, Pp 077103-077103-10 (2015)
A thickness distribution model of photoresist spin-coating on concave spherical substrate (CSS) has been developed via both theoretical studies and experimental verification. The stress of photoresist on rotating CSS is analyzed and the boundary cond
Externí odkaz:
https://doaj.org/article/f1a5896f709a4b1eaab6bb98e8d8451c
Publikováno v:
Russian Journal of Inorganic Chemistry. 67:2140-2147