Results 11 to 20 of about 1,320,249 (296)

Premelting at Defects Within Bulk Colloidal Crystals [PDF]

open access: yesScience, 2005
Premelting is the localized loss of crystalline order at surfaces and defects at temperatures below the bulk melting transition. It can be thought of as the nucleation of the melting process. Premelting has been observed at the surfaces of crystals but not within.
Alsayed, Ahmed M.   +4 more
openaire   +5 more sources

Do Columnar Defects Produce Bulk Pinning? [PDF]

open access: yesPhysical Review Letters, 2000
5 pages, 5 figures, submitted to Physical Review ...
Indenbom, M.V.   +3 more
core   +6 more sources

Birth Defects Res [PDF]

open access: yes
BackgroundGenitourinary infections (GUIs) are common among sexually active women. Yet, little is known about the risk of birth defects associated with GUIs.MethodsUsing data from the National Birth Defects Prevention Study, a multisite, population-based,

core   +10 more sources

Water transport through carbon nanotubes with defects [PDF]

open access: yes, 2012
Non-equilibrium molecular dynamics simulations are performed to investigate how changing the number of structural defects in the wall of a (7,7) single-wall carbon nanotube (CNT) affects water transport and internal fluid dynamics. Structural defects are
Reese, Jason M.   +8 more
core   +4 more sources

Bulk and Surface Tunneling Hydrogen Defects in Alumina [PDF]

open access: yesPhysical Review Letters, 2013
We perform ab initio calculations of hydrogen-based tunneling defects in alumina to identify deleterious two-level systems (TLS) in superconducting qubits. The defects analyzed include bulk hydrogenated Al vacancies, bulk hydrogen interstitial defects, and a surface OH rotor.
Holder, Aaron M.   +3 more
openaire   +3 more sources

Localisation of defects with time and frequency measurements using pulsed arrays [PDF]

open access: yes, 2014
The frequency dependent directivity of the periodic permanent magnet transducer is to used extract information about the position of any discontinuities present in a sample. Two approaches are used; narrowband excitation, and broadband pulsed generation.
Dixon, Steve   +3 more
core   +1 more source

Defect chemistry of bulk and nanoscale PuO2 [PDF]

open access: yes, 2022
The management of large stockpiles of Pu, separated from spent nuclear fuel or nuclear weapons programmes and stored as the oxide PuO2, requires an understanding of the material’s aging behaviour during interim storage. This includes characterising the effect of radiogenic impurities that accumulate at significant concentration over storage time ...
Neilson, William, Murphy, Samuel
openaire   +2 more sources

Structural Characteristics, Stability, and Electronic Properties of 001 Surface with Point Defects of Zinc Stannate: A First-Principle Study

open access: yesInorganics, 2022
This work presents first-principles calculations on the surface and defect impact upon zinc stannate (ZS) materials with perovskite bulk structures. The structure and electronic properties of both a perfect 001 surface and surfaces with a point defect of
Jun Li   +9 more
doaj   +1 more source

Realizing IR theories by projections in the UV

open access: yesJournal of High Energy Physics, 2020
We show how (topologically twisted) quantum field theories in the IR of bulk RG flows can be represented within the respective UV theories by means of codimenion- one projection defects.
Fabian Klos, Daniel Roggenkamp
doaj   +1 more source

Applications of Photoluminescence Microscopy for Probing Bulk Defects in Silicon [PDF]

open access: yes, 2020
Global adoption of photovoltaics for power generation is expected to accelerate over the next decades due to increased concern regarding climate change and their reduced cost.
Lee Chin, Robert
core   +1 more source

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