Zobrazeno 1 - 10 of 31 pro vyhledávání: '"Dan C. Dumitras"'
1
Akademický článek
Applications of Near Infrared Photoacoustic Spectroscopy for Analysis of Human Respiration: A Review
Autor: Dan C. Dumitras, Mioara Petrus, Ana-Maria Bratu, Cristina Popa
Publikováno v: Molecules, Vol 25, Iss 7, p 1728 (2020)
In this review, applications of near-infrared photoacoustic spectroscopy are presented as an opportunity to evaluate human respiration because the measurement of breath is fast, intact and simple to implement. Recently, analytical methods for measuri
Externí odkaz: https://doaj.org/article/b35cf051a29e41c68cef6142713e9152
Zobrazit plný text záznamu
2
[Untitled]
Autor: Rodica Alexandrescu, Crisan Popescu, Dan C. Dumitras, Mihai Popescu, I. Morjan, D. Fatu, Ion N. Voicu
Publikováno v: Journal of Thermal Analysis and Calorimetry. 56:183-189
This paper reports on the synthesis of various iron oxides by the IR laser processing of different iron salts. X-ray diffraction techniques were used to characterize the reaction products. Some differences in terms of crystallite size and isotropy be
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d546d90a7884e449fb1bf0960a5e3eab
https://doi.org/10.1023/a:1010180602236
Zobrazit plný text záznamu
3
Infrared photochemical properties of sensitized SO2O2 mixtures
Autor: Ion N. Voicu, N. Chitica, I.N. Mihailescu, R. Alexandrescu, Dan C. Dumitras, I. Morjan
Publikováno v: Journal of Photochemistry and Photobiology A: Chemistry. 93:89-95
Sulphur dioxide photo-oxidation in sensitized SO 2 O 2 mixtures at overall pressures of several hundred Torr was studied in the CO 2 laser emission range on addition of different absorbing gases (SF 6 , C 2 H 4 F 2 , C 2 HCl 3 ). The extent of con
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4a1feaf248bf6df6fd4c1241bc585165
https://doi.org/10.1016/1010-6030(95)04194-x
Zobrazit plný text záznamu
4
A Comparative Study of Iron-Based Film Deposition from Iron Pentacarbonyl at 248 nm and 488 nm
Autor: Dan C. Dumitras, Ion Morjan, Ion N. Voicu, Rodica Alexandrescu, R. Cireasa, A. Pogorelyi, A. Andrei, S.A. Mulenko
Publikováno v: Journal de Physique IV Proceedings
Journal de Physique IV Proceedings, EDP Sciences, 1995, 05 (C5), pp.C5-679-C5-686. ⟨10.1051/jphyscol:1995581⟩
Thin film deposition by laser irradiation of Fe(CO) 5 at two radiation wavelengths (248 nm and 488 nm) was performed. A perpendicular geometry of irradiation was used. Maximum deposition rates of 14 A/s at λ = 248 nm and 1.5 A/s at λ = 488 nm were
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cffeebddcffd7e4f6322ea1d43be35b0
https://doi.org/10.1051/jphyscol:1995581
Zobrazit plný text záznamu
5
IR laser chemical processing of metal salts for preparation of oxides and metal-containing layers
Autor: Ion N. Voicu, I. Morjan, Dan C. Dumitras, Crisan Popescu, Rodica Alexandrescu
Publikováno v: Scopus-Elsevier
The chemical processing of metal salts by the help of IR laser radiation is often investigated using a thermochemical approach, in which the strong localized action of the laser beam imposes the characteristics of the process. High-temperature gradie
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b692819774e9b59d7a98aed0e5e57e8
https://doi.org/10.1016/1350-4495(94)00048-p
Zobrazit plný text záznamu
7
Front Matter: Volume 6606
Autor: Maria Dinescu, Dan C. Dumitras, Vitally I. Konov
Publikováno v: Advanced Laser Technologies 2006.
This PDF file contains the front matter associated with SPIE Proceedings Volume 6606, including the Title Page, Copyright information, Table of Contents, Introduction (if any), and the Conference Committee listing.© (2007) COPYRIGHT SPIE--The Intern
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8763993725336014b137f7de406bc5ff
https://doi.org/10.1117/12.739509
Zobrazit plný text záznamu
8
Detection of ethylene in smokers breath by laser photoacoustic spectroscopy
Autor: Dan C. Dumitras, Adriana Puiu, Gianfranco Giubileo
Publikováno v: SPIE Proceedings.
In the experiments reported in this paper small traces of ethylene down to ppb level have been detected by means of photoacoustic spectroscopy in the breath exhaled from humans. The method has been applied in studying how the concentration of the eth
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fdfe92a64ee7a2c7786066a15bd643d7
https://doi.org/10.1117/12.572042
Zobrazit plný text záznamu
9
Detectability by photoacoustic spectroscopy of x-ray-induced ethylene emission in mice breath
Autor: C. Mancini, Dan C. Dumitras, Luigi De Dominicis, Gianfranco Giubileo, Alessandro Antonini, C.C. Lombardi
Publikováno v: SPIE Proceedings.
We demonstrate fabrication of 2D photonic crystal structure inside the volume of SU-8 resist by four beams interference. This structure, actually, is a 3D structure fabricated inside the film without sample scanning laser beam steering. The mechanism
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e4b272f952893eaef290f52a8db2fc7b
https://doi.org/10.1117/12.543647
Zobrazit plný text záznamu
10
Detection of ethylene traces by photoacoustic spectroscopy
Autor: D. Piccinelli, Roberta Fantoni, Luigi De Dominicis, Gianfranco Giubileo, Antonella Lai, Dan C. Dumitras
Publikováno v: SPIE Proceedings.
A laser based photoacoustic system has been designed and built at ENEA in order to monitor bio-gases produced in different processes involving living cells. Experiments aimed to reveal traces of ethylene emitted from tomato plantlets and fruits under
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7f2f64a951e52597317154243bfcac49
https://doi.org/10.1117/12.513679
Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání

Omezení vyhledávání
Plný text Recenzováno Digitální knihovna AV ČR
Zdroje