Zobrazeno 1 - 10
of 115
pro vyhledávání: '"Riccardo Levi-Setti"'
Autor:
David B. Williams, K. L. Gavrilov, A. G. Adriaens, Patrick S. Grant, H. G. Kang, K. K. Soni, Riccardo Levi-Setti, R. Mogilevsky, M. W. Tseng, B. Cantor
Publikováno v:
Scopus-Elsevier
Journal of microscopy
Journal of microscopy
Summary An ion microprobe with high lateral resolution has been used to study the chemical reactions at the fibre/matrix interface of metal–matrix composites. During the squeeze-casting process, the Al–Si–Mg matrix reacts with the preform made
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5dfd50bb808b22f9336ac0cd0a238564
https://doi.org/10.1111/j.1365-2818.1995.tb03572.x
https://doi.org/10.1111/j.1365-2818.1995.tb03572.x
Autor:
Riccardo Levi-Setti
Distant relatives of modern lobsters, horseshoe crabs, and spiders, trilobites swam the planet's prehistoric seas for 300 million years, from the Lower Cambrian to the end of the Permian eras—and they did so very capably. Trilobite fossils have bee
Publikováno v:
Arthropod Structure & Development. 35:247-259
The oldest preserved visual systems are to be found in the extinct trilobites, marine euarthropods which existed between about 520 and 250 million years ago. Because they possessed a calcified cuticle, they have a good fossil record, and commonly the
Autor:
Riccardo Levi-Setti, Arno Heeren de Oliveira, K.B. Santana, Pedro Antônio Oliveira Mangabeira, P. Galle, A. A. F. de Almeida, L. Labejof, D. M. D. C. Rocha, Marie Florence Grenier-Loustalot, Daniel Da Silva, M. I. Severo, T.S. Rosa, Konstantin L. Gavrilov, I. A. Arantes, Frédérique Barbier, L. Dutruch, Marcelo Schramm Mielke
Publikováno v:
Applied Surface Science. 252:6816-6819
The capacity of Borreria scabiosoides Cham. & Schltdl. growing in hydroponics solutions to remove Cr (III) from water was evaluated. This macrophytes efficiently removed Cr from water at concentrations of 25 and 50 mg/l Cr−1. High resolution imagin
Publikováno v:
Applied Surface Science. 252:6907-6916
The University of Chicago high resolution scanning ion microprobe (UC-SIM) was used to image, by Secondary Ion Mass Spectrometry (SIMS), the distribution of Ca 2+ and Mg 2+ in the chromosomes of Indian muntjac (IM) deer mitotic fibroblasts. This is p
Publikováno v:
Applied Surface Science. 252:6765-6769
The focus of our current research aims at detailing and quantifying the presence of cations, primarily Ca and Mg, in mammalian cells and chromosomes throughout the different stages of the cell cycle, using our high resolution scanning ion microprobe,
Publikováno v:
Applied Surface Science. 252:6770-6773
At SIMS XIV, we reported SIMS evidence of specific Mg 2+ binding to the AT-rich regions of human metaphase chromosomes represented by G-bands. Subsequent Mg 2+ -depletion experiments supported a direct role for Mg 2+ in promoting and maintaining the
Autor:
Francoise Escaig, Marcelo Schramm Mielke, Riccardo Levi-Setti, L. Labejof, Tiago Santana Rosa, Delmira da Costa Silva, Alex-Alan Furtado de Almeida, Konstantin L. Gavrilov, Pedro Antônio Oliveira Mangabeira, P. Galle, M. I. Severo, Arno Heeren de Oliveira, Florence Grenier Loustalot
Publikováno v:
Applied Surface Science
Applied Surface Science, Elsevier, 2006, 252 (10), pp.3488-3501. ⟨10.1016/j.apsusc.2005.05.015⟩
Applied Surface Science, Elsevier, 2006, 252 (10), pp.3488-3501. ⟨10.1016/j.apsusc.2005.05.015⟩
High-resolution imaging secondary ion mass spectrometry (HRI-SIMS) in combination with inductively coupled plasma mass spectrometry (ICP-MS) were utilised to determine specific sites of chromium concentration in tomato plant tissues (roots, stems and
Autor:
David B. Williams, Kamal K. Soni, Jan M. Chabala, A. Mark Thompson, Martin P. Harmer, Riccardo Levi-Setti, Helen M. Chan
Publikováno v:
Journal of the American Ceramic Society. 80:373-376
The distribution of yttrium and lanthanum dopants has been mapped in yttrium- and lanthanum-doped polycrystalline aluminas using imaging secondary-ion mass spectrometry (imaging-SIMS). Both dopants segregate to grain boundaries and pore surfaces. On
Autor:
Riccardo Levi-Setti, Jeffrey M. Rickman, C.M. Wang, Jan M. Chabala, Yan-Zun Li, Martin P. Harmer, Helen M. Chan, Konstantin L. Gavrilov
Publikováno v:
Journal of the American Ceramic Society. 82:1497-1504
The tensile creep behavior of both singly and multiply doped alumina samples has been investigated in order to understand better the impact of dopant segregation to grain boundaries on observed creep resistance. Previous studies have suggested that t