Zobrazeno 1 - 10
of 14
pro vyhledávání: '"B G Walker"'
Publikováno v:
The European Physical Journal B. 72:193-201
We present a systematic study of small mixed composition Si and Ge nanoparticle quantum dots performed using density functional theory (DFT) and time-dependent density functional theory (TDDFT) with real space grids and norm-conserving pseudopotentia
Publikováno v:
The European Physical Journal B. 66:7-15
We present a density-functional theory study of Si nanoparticle quantum dots, focusing on determination of their optical properties. To calculate the absorption spectra of our quantum dot models we use a recently-developed method based on the applica
Publikováno v:
Physical Review B. 59:R11679-R11682
The effect of oxygen isotopic substitution on transition temperature ${T}_{c},$ the Curie temperature ${T}_{M},$ and Raman modes is investigated in the ferromagnetic superconductor ${\mathrm{RuSr}}_{2}{\mathrm{GdCu}}_{2}{\mathrm{O}}_{8}.$ A large pos
Autor:
B. G. Walker, W. D. Bowen
Publikováno v:
Journal of Zoology. 231:423-436
Loss of body mass has been used as an index of the cost of reproductive effort in mammals. We studied changes in body mass of male harbour seals, Phoca vitulina, during the breeding season on Sable Island, Nova Scotia, Canada. Individually marked sub
Publikováno v:
AIP Conference Proceedings.
We present a first principles computational study of semiconductor nanoparticle quantum dots, focusing on the effects of attaching different molecules to their surfaces. Density functional theory is used to examine structural changes and and time‐d
Publikováno v:
Physical Review B. 67
Passive metals are protected from the environment by a thin (3\char21{}5 nm) oxide film that forms on their surface. The corrosion rate of these materials is typically of the order of $0.1\ensuremath{\mu}\mathrm{m}/\mathrm{y}\mathrm{e}\mathrm{a}\math
Publikováno v:
Minutes of the Proceedings of the Institution of Civil Engineers. 205:139-150
Autor:
H. W. Haslam, B. G. Walker
Publikováno v:
Mineralogical Magazine. 38:58-63
Petrology. The metamorphosed pyroxenite that forms the summit of the hill contains euhedral orthopyroxene, up to 7 mm in length, with anhedral diopside, plagioclase, garnet, and hornblende. The pyroxenes, which both contain exsolution lamellae, are t
Publikováno v:
Journal of Vacuum Science and Technology. 15:758-760
Experiments were carried out on laboratory and prototype scale systems in order to establish the feasibility of argon discharge processing the PEP storage ring aluminum vacuum chambers. Electron‐induced desorption rates showed significant reduction
Autor:
B G, Walker
Publikováno v:
Advancing clinical care : official journal of NOAADN. 4(5)