Zobrazeno 1 - 10
of 171
pro vyhledávání: '"R. L. Simpson"'
Autor:
Thomas E. Buchheit, C. Jeffrey Brinker, Roger A. Assink, David R. Tallant, Dave J. Kissel, R. L. Simpson, Salvatore Torquato, Daniel J. Lacks, Hongyou Fan, Christopher Hartshorn
Publikováno v:
Nature Materials. 6:418-423
Natural porous materials such as bone, wood and pith evolved to maximize modulus for a given density. For these three-dimensional cellular solids, modulus scales quadratically with relative density. But can nanostructuring improve on Nature's designs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad038c7a30cd0f68f3f8877847bf48bc
https://doi.org/10.1038/nmat1913
https://doi.org/10.1038/nmat1913
Publikováno v:
Journal of Applied Physics. 91:4053-4064
We present persistence data from the 5D manifolds of europium (3+)-activated Y2O3, after excitation by ultraviolet photons. For europium concentrations below 1 at. %, the persistence is largely consistent with multiphonon relaxation. For europium con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::474d5f76c678bb0ef45f8c892f8dbddf
https://doi.org/10.1063/1.1452770
https://doi.org/10.1063/1.1452770
Autor:
M. P. Siegal, D. R. Tallant, L. J. Martinez-Miranda, J. C. Barbour, R. L. Simpson, D. L. Overmyer
Publikováno v:
Physical Review B. 61:10451-10462
Nanostructural characterization of amorphous diamondlike carbon (a-C) films grown on silicon using pulsed-laser deposition (PLD) is correlated to both growth energetic and film thickness. Raman spectroscopy and x-ray reflectivity probe both the topol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e496361bb9654bae43d25d473bf96d83
https://doi.org/10.1103/physrevb.61.10451
https://doi.org/10.1103/physrevb.61.10451
Publikováno v:
Journal of Applied Physics. 80:7009-7017
Photoluminescence and Raman measurements have been performed on an anodized silicon surface in an HF/ethanol anodization solution and after replacement of this solution with water. Immediately after anodization and while resident in HF/ethanol, the p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56989ab68dc07d2c60cde470b8040362
https://doi.org/10.1063/1.363813
https://doi.org/10.1063/1.363813
Autor:
K A Shinpaugh, R L Simpson
Publikováno v:
Measurement Science and Technology. 6:690-701
A two-velocity-component directionally sensitive fringe-type rapidly scanning laser Doppler velocimeter (RSLDV) is described, which scans the measurement volume in a direction perpendicular to the optical axis of the transmitting optics and normal to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d4e43ea8bc3d7f8f615bb7c841cd437
https://doi.org/10.1088/0957-0233/6/6/008
https://doi.org/10.1088/0957-0233/6/6/008
Publikováno v:
Diamond and Related Materials. 4:191-199
Diamond-like carbon (DLC) is a potential, low-cost substitute for diamond in certain applications, but little is known of the temperature range over which its desirable properties are retained. We have investigated the stability of DLC films at eleva
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::42b1f68cbf5ddce9748bcca6cb8813f2
https://doi.org/10.1016/0925-9635(94)00243-6
https://doi.org/10.1016/0925-9635(94)00243-6
Autor:
Kevin C. Walter, Gregory P. Johnston, Nalin Kumar, P. Tiwari, David B. Williams, Howard K. Schmidt, W. J. Waganaar, Xiamei Qiu, David R. Tallant, Ross E. Muenchausen, Harold A. Davis, R. L. Simpson, Boyang Lin, D. J. Rej, Michael Nastasi
Publikováno v:
Journal of Applied Physics. 76:5949-5954
Diamondlike carbon (DLC) films were prepared by high‐intensity pulsed‐ion‐beam ablation of graphite targets. A 350 keV, 35 kA, 400 ns beam, consisting primarily of hydrogen, carbon, and oxygen ions was focused onto a graphite target at a fluenc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb13504069a289bfdb393eff57734b4c
https://doi.org/10.1063/1.358373
https://doi.org/10.1063/1.358373
Autor:
R L, SIMPSON
Publikováno v:
Clinical proceedings - Children's Hospital of the District of Columbia. 2(9)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::318d9365f8136789bfa66535759d9604
https://pubmed.ncbi.nlm.nih.gov/20275897
https://pubmed.ncbi.nlm.nih.gov/20275897
Autor:
Paula P. Provencio, Luz J. Martinez-Miranda, R. L. Simpson, Michael P. Siegal, Donald L. Overmyer, David R. Tallant
Publikováno v:
Applied Physics Letters. 76:3052-3054
Modest thermal annealing to 600 C of diamondlike amorphous-carbon (a-C) films grown at room temperature results in the formation of carbon nanocomposites with hardness similar to diamond. These nanocomposite films consist of nanometer-sized regions o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::289e714bf8cfa18bb1fc52bc54c70943
https://doi.org/10.1063/1.126576
https://doi.org/10.1063/1.126576
Autor:
P. N. Provencio, B. Kleinsorge, Michael P. Siegal, R. L. Simpson, William I. Milne, David R. Tallant
Publikováno v:
Applied Physics Letters. 76:2047-2049
The carbon ion energy used during filtered cathodic vacuum arc deposition determines the bonding topologies of amorphous-carbon (a-C) films. Regions of relatively low density occur near the substrate/film and film/surface interfaces and their thickne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::95571b2b41fa6af509d739cd6fbf0845
https://doi.org/10.1063/1.126250
https://doi.org/10.1063/1.126250