Results 241 to 250 of about 3,018,345 (290)

Stroboscopic scanning electron microscopy

Journal of Physics E: Scientific Instruments, 1968
High frequency cyclic voltages on a specimen surface have been studied pictorially, in the scanning electron microscope, by applying the principle of the sampling oscilloscope. The electron beam in the microscope column is pulsed, and the phase varied with respect to that of the waveform on the specimen.
G S, Plows, W C, Nixon
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Scanning electron microscopy of staphylococcus

Journal of Ultrastructure Research, 1977
The surface of Staphylococcus was examined in the field emission source scanning electron microscope and the following observations were obtained. The cell surface consisted of three areas, the smooth, the less smooth and the rough. Two cells were joined together facing each other at the smooth area.
K, Amako, A, Umeda
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Scanning Electron Microscopy of Cells

Science, 1969
The scanning electron energy-analyzing microscope uses characteristic energy losses to provide picture contrast. At different levels of energy loss particular structures are distinguished with high contrast in an unstained section of a cell.
A N, Stroud, L M, Welter, D A, Resh, D A, Habeck, A V, Crewe, J, Wall   +5 more
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Scanning electron microscopy of the lung

Human Pathology, 1970
Abstract We have examined the lungs of humans, baboons, pigs, and mice with a scanning electron microscope. The tissues were prepared in various ways, including formalin vapor fixation, freeze drying, and conventional methods of tissue processing for transmission electron microscopy. Glutaraldehyde fixed and alcohol dehydrated tissues presently appear
N S, Wang, W M, Thurlbeck
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Scanning Electron Microscopy of Dermatofibromas

Journal of Cutaneous Pathology, 1979
The three‐dimensional morphology of six dermatofibromas was studied by scanning electron microscopy. Hypertrophic epidermal ridges covered with large keratinized cells overlay each dermal lesion. Small collagenous fibers in the tumors contrasted with the bundles of much larger collagenous fibers in the normal dermis peripheral to the lesions.
W H, Wilborn, L F, Montes
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Modern Scanning Electron Microscopy. 2. Test Objects for Scanning Electron Microscopy

Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques, 2023
The review of the test objects intended for calibration of scanning electron microscopes and researches to secondary electronic emission of a relief surface of a solid state in scanning electron microscope is carried out. The test objects are divided on two parameters – kind of a relief and structure of a relief.
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[Scanning electron microscopy in ophthalmology].

Klinische Monatsblatter fur Augenheilkunde, 1971
In the context the technique of the scanning electron microscopy is described and the results are shown gained by the scanning electron microscope in ophthalmology. It is pointed out that questions specific to surface can be answered quicker and easier, if superificial microscopy together with the scanning electron microscope is used an additional ...
H, Hager, F, Hoffmann, L, Dumitrescu
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Scanning electron microscopy of ovoimplantation

Archiv f�r Gyn�kologie, 1972
Blastocysts were obtained from mice in experimentally delayed implantation at various intervals after administration of different doses of oestradiol-17β and examined by scanning electron microscopy (SEM).
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High-resolution scanning electron microscopy

Ultramicroscopy, 1991
The scanning electron microscope (SEM) builds up an image by sampling contiguous sub-volumes near the surface of the specimen. A fine electron beam selectively excites each sub-volume and then the intensity of some resulting signal is measured. The spatial resolution of images made using such a process is limited by at least three factors. Two of these
D C, Joy, J B, Pawley
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Scanning Electron Microscopy of the Phloem

2019
In vascular plants, sugars are transported through the phloem tissue from areas of production, the leaves, to heterotrophic organs, where they are needed for growth and storage. Inside the phloem, transport takes place in specialized cells called sieve elements. Sieve elements are connected end-to-end by sieve plates to form a sieve tube.
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