Results 101 to 110 of about 765,835 (352)

Relation between Vortex core charge and Vortex Bound States

open access: yes, 1998
Spatially inhomogeneous electron distribution around a single vortex is discussed on the basis of the Bogoliubov-de Gennes theory. The spatial structure and temperature dependence of the electron density around the vortex are presented.
Ao P.   +26 more
core   +1 more source

Investigation of Oxygen‐Free Wetting Behavior of Aluminum on Copper via Molecular Dynamics Simulations and Experiments

open access: yesAdvanced Engineering Materials, EarlyView.
The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu   +8 more
wiley   +1 more source

Data reduction of digitized images processed from calibrated photographic and spectroscopic films obtained from terrestial, rocket and space shuttle telescopic instruments [PDF]

open access: yes
The Microvax 2 computer, the basic software in VMS, and the Mitsubishi High Speed Disk were received and installed. The digital scanning tunneling microscope is fully installed and operational.
Hammond, Ernest C., Jr.
core   +1 more source

Determination of the Number of Graphene Layers: Discrete Distribution of the Secondary Electron Intensity Derived from Individual Graphene Layers

open access: yes, 2010
Using a scanning electron microscope, we observed a reproducible, discrete distribution of secondary electron intensity stemming from an atomically thick graphene film on a thick insulating substrate.
Hiura, Hidefumi   +2 more
core   +1 more source

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

open access: yesAdvanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa   +9 more
wiley   +1 more source

SEMOS: a scanning electron microscope optical simulator for instrumental performance optimization

open access: yesJournal of Analytical Science and Technology
In this study, a Scanning Electron Microscope Optical Simulator (SEMOS) was developed to provide an intuitive and quantitative understanding of electron-beam optics and to optimize lens operating parameters for improved SEM performance.
Cheolsu Han   +4 more
doaj   +1 more source

Evaluation of the dentinal wall adaptation ability of Mineral Trioxide Aggregate Fillapex, EndoSequence BC, and AH Plus sealers using Scanning Electron Microscope: An in vitro study

open access: yesEndodontology
Aim: The present study was conducted to evaluate the dentinal wall adaptation ability of different root canal sealers (mineral trioxide aggregate Fillapex [MTA], EndoSequence BC [ESBC] Sealer, and AH Plus) using a scanning electron microscope (SEM ...
Pradipkumar R. Damor   +3 more
doaj   +1 more source

A simplified focusing and astigmatism correction method for a scanning electron microscope

open access: yesAIP Advances, 2018
Defocus and astigmatism can lead to blurred images and poor resolution. This paper presents a simplified method for focusing and astigmatism correction of a scanning electron microscope (SEM). The method consists of two steps. In the first step, the fast
Yihua Lu, Xianmin Zhang, Hai Li
doaj   +1 more source

Electrode erosion in steady-state electric propulsion engines [PDF]

open access: yes
The anode and cathode of a 30 kW class arcjet engine were sectioned and analyzed. This arcjet was operated for a total time of 573 hr at power levels between 25 and 30 kW with ammonia at flow rates of 0.25 and 0.27 gm/s.
Deininger, William D.   +1 more
core   +1 more source

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