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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
91

TEM studies of calcium phosphates for the understanding of biomineralization /

Xin, Renlong. January 2006 (has links)
Thesis (Ph.D.)--Hong Kong University of Science and Technology, 2006. / Includes bibliographical references (leaves 119-132). Also available in electronic version.
92

A reassessment of Geminella (Chlorophyta) based upon photosynthetic pigments, DNA sequence analysis and electron microscopy /

Durako, Maris R. January 2007 (has links) (PDF)
Thesis (M.S.)--University of North Carolina Wilmington, 2007. / Includes bibliographical references (leaves: 43-46)
93

Development of Spectral Imaging Microscope for Single Molecule Studies in Complex Biological Systems

Girirajan, Thanu Prabha Kalambur January 2007 (has links) (PDF)
No description available.
94

A SEM Study Of Copper Corrosion In Bowling Green Supply Lines

Alghamdi, Reema M 01 October 2015 (has links)
Recently, the rate of corrosion of copper water pipes in Bowling Green, Kentucky has unexpectedly accelerated. The specific reasons for this are unknown. Our aim is to elucidate the factors enhancing the corrosion and help understand the primary mechanisms of action. This will help in combating and reducing future corrosion incidents leading to pipe failure, thus reducing losses experienced when these pipes are replaced. This study seeks to explore the characteristics and factors involved. The scanning electron microscopy was used to obtain elemental composition, and images of both inside and outside of the corroded pipes. Strikingly, corrosion primarily occurred on the outside of the pipes, not inside. X-ray crystallography also was used to examine the pipes. The results showed that the interior of the pipes mostly consisted of SiO2, CuO2, CaCO3 while the exterior consisted of Cu2(OH)2CO3, Fe2Al2O4, CaCO3, SiO2 and Cu2O. There was no clear single factor for the corrosion observed. For further studies, we plan to long temporal experiments. The results from the study will help in minimizing the costs to the city in Bowling Green, Kentucky.
95

Avaliacao em microscopia eletronica de varredura da superficie radicular, raspada e alisada com ER: YAG LASER

MELLO, FABIANO A.S. de 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:44:47Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T13:58:07Z (GMT). No. of bitstreams: 1 06999.pdf: 3514909 bytes, checksum: 57619a2289322ad837ce55b51c5b24ec (MD5) / Dissertacao (Mestrado Profissionalizante em Lasers em Odontologia) / IPEN/D-MPLO / Intituto de Pesquisas Energeticas e Nucleares, IPEN/CNEN-SP; Faculdade de Odontologia, Universidade de Sao Paulo
96

Spermatological characters in Bothriocephalidea (Cestoda) / Spermatological characters in Bothriocephalidea (Cestoda)

ŠÍPKOVÁ, Lenka January 2011 (has links)
Spermiogenesis and ultrastructure of the spermatozoon of two bothriocephalidean cestodes, Oncodiscus sauridae and Senga sp., have been studied using transmission electron microscopy. The presence of a classical pattern for spermatological characters (spermiogenesis of type I with dense-material in early stages and sperm of type II with a characteristic ring of cortical microtubules in the anterior part) in Bothriocephalidea is discussed.
97

High resolution microanalysis of alloy steel

Vatter, Ian A. January 1993 (has links)
No description available.
98

Das verdichtungsverhalten von beta-SiC beim Heisspressen mit verschiedenen Sinterhilfen / Efeito de diferentes aditivos de sinterização na densificação por prensagem a quente de beta-carbeto de silicio

BRESSIANI, ANA H. de A. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:53:45Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T13:58:43Z (GMT). No. of bitstreams: 1 12360.pdf: 4474610 bytes, checksum: afe6b212ae16024e756b11010a52131a (MD5) / Tese (Doutoramento) / IPEN/T / Institut fur Metallkunde der Universitat Stuttgart, Alemanha
99

Caracterizacao de uma superliga de niquel sob temperaturas elevadas

SANTOS, INGRID A. dos 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:37:19Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:09:05Z (GMT). No. of bitstreams: 1 02047.pdf: 7030823 bytes, checksum: edacc738c25ca0eb1c8ed2c023d5f1d6 (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
100

Demonstration of intracellular glycogen, peroxidases and viruses by light and electron microscopy

Tiedt, Friedrich AC January 1995 (has links)
Thesis (Masters Diploma (Medical Technology)--Cape Technikon, Cape Town, 1995 / The objective of the present study vvas primarily to determine vvhether modifications to the existing osmium tetroxide/potassium ferrocyanide method could be used as a general ultrastructural glycogen stain and whether this glycogen, vvhen so contrasted, differed in appearance in different tumours, such as Evving's sarcoma, Leiomyosarcoma, Rhabdomyosarcoma and Hepatocellular carcinoma. Normal skeletal muscle and liver were used to obtain a standard for the appearance of glycogen, and then, with diagnostic criteria in mind, the four glycogen-rich tumours, mentioned above vvere examined to determine the appearance, distribution and amount of glycogen present in them. Modifications to the osmium tetroxide/potassium ferrocyanide (OPF) method consisted of raising the concentration of the ferrocyanide, and using no en bloc or thin section staining by any uranyl salt solutions, because solutions of uranyl salts leaches glycogen from tissue. This procedure resulted in extremely electron-dense intracellular glycogen being retained, vvhich aided diagnosis of the these tumours. At high magnification. (>X30000) there vvas no morphological difference betvveen the glycogen particles in the various tumours, so these particles as such could not be used as a diagnostic criterion. Existing methods for the demonstration of myeloperoxidase and platelet peroxidase vvere modified to obtain more precise localization of the diaminobenzidine (DAB) reaction product. Different anti-coagulants, one of which was heparin and a modified fixation procedure vvas follovved.

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