Results 31 to 40 of about 1,519,209 (383)

Scanning Electron Microscope: Advantages and Disadvantages in Imaging Components

open access: yes, 2017
An account of the early history of SEM has been presented by McMullan (1988 and 2006) Although Max Knoll produced a photo with a 50 mm object-field-width showing channeling contrast by the use of an electron beam scanner, (Knoll, 1935) it was Manfred von
O. Choudhary, Priyan ka
semanticscholar   +1 more source

Formation of Three-Way Scanning Electron Microscope Moiré on Micro/Nanostructures

open access: yesThe Scientific World Journal, 2014
Three-way scanning electron microscope (SEM) moiré was first generated using a designed three-way electron beam (EB) in an SEM. The spot-type three-way SEM moiré comes from the interference between the three-way EB and the specimen grating in which the ...
Qinghua Wang   +2 more
doaj   +1 more source

Nanotip electron gun for the scanning electron microscope [PDF]

open access: yesScanning, 2005
Experimental nanotips have shown significant improvement in the resolution performance of a cold field emission scanning electron microscope (SEM). Nanotip electron sources are very sharp electron emitter tips used as a replacement for the conventional tungsten field emission (FE) electron sources.
Zsolt Radi   +3 more
openaire   +3 more sources

Multiscale correlative tomography: an investigation of creep cavitation in 316 stainless steel [PDF]

open access: yes, 2017
Creep cavitation in an ex-service nuclear steam header Type 316 stainless steel sample is investigated through a multiscale tomography workflow spanning eight orders of magnitude, combining X-ray computed tomography (CT), plasma focused ion beam (FIB ...
A Delobbe   +31 more
core   +2 more sources

High-resolution, high-throughput imaging with a multibeam scanning electron microscope

open access: yesJournal of Microscopy, 2015
Electron–electron interactions and detector bandwidth limit the maximal imaging speed of single‐beam scanning electron microscopes. We use multiple electron beams in a single column and detect secondary electrons in parallel to increase the imaging speed

semanticscholar   +1 more source

Microleakage of different provisionalization techniques for class I inlays

open access: yesJournal of Dental Sciences, 2013
Background/purpose: To investigate the effects of different provisionalization methods on the microleakage of class I inlay cavities. Materials and methods: Class I inlay cavities were prepared on human molars (n = 60). Teeth were divided into six groups
Selim Erkut   +4 more
doaj   +1 more source

Transport Simulations on Scanning Transmission Electron Microscope Images of Nanoporous Shale

open access: yesEnergies, 2020
Digital rock physics is an often-mentioned approach to better understand and model transport processes occurring in tight nanoporous media including the organic and inorganic matrix of shale.
Laura Frouté   +4 more
doaj   +1 more source

Scanning ultrafast electron microscopy [PDF]

open access: yes, 2010
Progress has been made in the development of four-dimensional ultrafast electron microscopy, which enables space-time imaging of structural dynamics in the condensed phase. In ultrafast electron microscopy, the electrons are accelerated, typically to 200
Mohammed, Omar F.   +2 more
core   +1 more source

Examination of mycological samples by means of the scanning electron microscope

open access: yesRevista da Sociedade Brasileira de Medicina Tropical, 1973
Three species of Siphomycetes: Rhizopus arhizus, Rhizopus equinus and Rhizopus nigricans, as well as a Septomycete: Emericella nidulans, have been examined by means of a scanning electron microscope.
M. Thibaut, M. Ansel
doaj   +3 more sources

Mechanical and wear behavior of vinyl ester-carbon/cement by-pass dust particulate filled homogeneous and their functionally graded composites

open access: yesScience and Engineering of Composite Materials, 2013
The paper presents the processing, mechanical and sliding wear characterization of particulate filled cement by-pass dust and carbon fiber (fixed) reinforced homogeneous and functionally graded vinyl ester composites.
Gangil Brijesh   +2 more
doaj   +1 more source

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