Results 251 to 260 of about 3,055,647 (295)

Crystal Identification with the Polarizing Microscope

1994
List of symbols. Preface. Efficient use of this book. Crystal identification and optical principles. Equipment and preparation of materials. The immersion method. Isotropic crystal identification. Phase relationships and interference. Anisotropic crystals. Uniaxial crystal optics. Uniaxial interference figures.
Richard E. Stoiber, Stearns A. Morse
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Identification of nerve fibres in the scanning electron microscope

Journal of Microscopy, 1975
SUMMARYThe use of silver as a ‘stain’ for nerve fibres in scanning electron microscopy (SEM) preparations has been investigated. Samples of cardiac tissues were treated according to the Bielschovsky silver impregnation method. Following embedding in paraffin, successive sections were selected for light microscopy and for SEM studies, respectively.
T S, Saetersdal, R, Myklebust
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[Microscopic identification of Rhodiola henryi].

Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials, 2002
To study the microscipic characteristics of the rhizoma, root, stem, leaf and powder of Rhodiola henryi.By microscopic observation.The brown substance was always found in the rhizoma and root of Rhodiola henryi. There was a fiber ring in the cambium region of the stem, and some fiber bundles surrounded the pholem.
Y, Luo, Y, Cheng, Y, Zhan, L, Cheng
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[Microscopical identification of Scolopa chinensis].

Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials, 2008
To study the microscopical features of Scolopa chinensis.By microscope, the tissue characteristics and the powder characteristics were studied.The results are accurate and practical.These Characteristics can provide evidences for the identifcation of Scolopa chinensis.
Hui, Tian, Qing, Chen, Jing-sheng, Wang, Xiao, Li   +3 more
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Microscopic Identification of Sugars

Industrial & Engineering Chemistry Analytical Edition, 1939
John A. Quense, William M. Dehn
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Automatic Identification of Pollen in Microscopic Images

2017
A system for the identification of pollen grains in bright-field microscopic images is presented in this work. The system is based on segmentation of raw images and binary classification for 3 types of pollen grain. The segmentation method developed tackles a major difficulty of the problem: the existence of clustered pollen grains in the initial ...
Elisabete M. D. S. Santos, André R. S. Marcal   +1 more
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Chenopod and Amaranth Pollen: Electron-Microscopic Identification

Science, 1967
Electron-microscopic criteria for distinguishing chenopod and amaranth pollen have been found in the number of minute holes and spinules, and especially in the ratio between them, which is < 1.5 in amaranths and > 1.6 in chenopods. Sixty-eight percent of total fossil pollen from a Classic Maya level (carbon-14 age 1380 ± 120 B.P.) in
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Electron Microscopic Identification of Autonomic Nerve Endings

Nature, 1966
THE endings of some autonomic axons, which are presumed to be either adrenergic or cholinergic in function, can be distinguished using the electron microscope by their different populations of vesicles. This was first pointed out by de Robertis and Pellegrino de Iraldi1. The cholinergic fibres, as in motor end-plates of skeletal muscle, contain uniform
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The Microscopic Identification of Pneumocystis carinii

The Journal of Protozoology, 1989
D, Savoia, P, Caramello
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The fishmeal adulteration identification based on microscopic image and deep learning

Computers and Electronics in Agriculture, 2022
Jie Geng, Xianrui Kong
exaly