Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Ljubica T. Petkovska"'
Publikováno v:
Journal of the Serbian Chemical Society, Vol 65, Iss 5-6, Pp 381-389 (2000)
A theoretical model of a waveguide CO2-laser was made to optimize the dimensions of the waveguide tube and resonator, i.e., to obtain the best mode structure while maximizing the output power. The results were used to design and build the laser itsel
Externí odkaz:
https://doaj.org/article/deb7b41ccf43491c83c3c7e8a569fa19
Autor:
Milan S. Trtica, Biljana M. Gaković, Bojan B. Radak, Ljubica T. Petkovska, Mikhail A. Shulepov, Andrei V. Fedenev, Victor F. Tarasenko, Evgeniy I. Lipatov
Publikováno v:
Applied Surface Science
Interaction of a transversely excited atmospheric (TEA) CO2 and excimer-KrCl laser, pulse duration similar to2 mus (FWHM of initial spike similar to100 ns) and similar to12 ns (FWHM), respectively, with polycrystalline titanium nitride (TiN) coating
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9471289267d8538db3d5b6be43a21a6d
https://doi.org/10.1016/j.apsusc.2003.10.048
https://doi.org/10.1016/j.apsusc.2003.10.048
Autor:
Ljubica T. Petkovska, Menka Petkovska
Publikováno v:
Adsorption. 9:133-142
One of the characteristic examples of the inability of the classical linear frequency response (FR) method to identify the correct kinetic mechanism is adsorption of some substances (p-xylene, 2-butane, propane or n-hexane) on silicalite-1. The linea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f84d9ce2a3491b3c57e2d692b322a28
https://doi.org/10.1023/a:1024241326422
https://doi.org/10.1023/a:1024241326422
Autor:
Ljubica T. Petkovska
Publikováno v:
Spectroscopy Letters
Carbon-dioxide spectra of some higher transitions in the 9-11 mu m region were studied. Spectra of the sequence ([10(0)1,02(0)1](I,II)-00(0)2) and hot (01(1)1-11(1)0) bands were calculated as a function of temperature. The positions of the re-vibrati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::698a72ce88faf014c8255fec1656a7b9
https://doi.org/10.1080/00387010009350077
https://doi.org/10.1080/00387010009350077
Publikováno v:
Spectroscopy Letters
The effect of the substituents, solvent polarities and hydrogen ion concentration on the electronic structure and UV/VIS absorption spectra of some Schiff bases, derivatives of N-(R-benzylidene)benzidine (R = o-NO2 and o-OH, p-OH) and N-(R-furfurylid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5da4e357042bb2a8197ddd54e7d20ab7
https://doi.org/10.1080/00387019808003288
https://doi.org/10.1080/00387019808003288
Publikováno v:
Infrared Physics and Technology
Carbon dioxide laser coincidences were investigated by photoacoustic detection at laser lines 10P(28) and 9P(28) with ethene and at 10P(20) and 10P(16) with ammonia. The intensities of coincidences were measured as a function of pressure of a buffer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0ae1632fe312b40738cd5ca952b644e
https://doi.org/10.1016/s1350-4495(97)00035-2
https://doi.org/10.1016/s1350-4495(97)00035-2
Autor:
Gordana S. Ristić, Ljubica T. Petkovska, Milovan Stoiljković, Šćepan S. Miljanić, Milan S. Trtica
Publikováno v:
Journal of Quantitative Spectroscopy and Radiative Transfer. 54:509-520
The i.r. absorption spectra of carbon dioxide in the 9–11 μm region have been studied as a function of temperature in a wide range by the laser photoacoustic (PA) method which included CO2-laser as the source of radiation. Obtained spectra were in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::978e5af271f45d0b328ee7ba45ce9376
https://doi.org/10.1016/0022-4073(95)00031-f
https://doi.org/10.1016/0022-4073(95)00031-f
Publikováno v:
Proceedings / Indian Academy of Sciences. 103:405-408
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c80926f8a0f9072017bf8d3faaf67e0c
https://doi.org/10.1007/bf02842098
https://doi.org/10.1007/bf02842098
Autor:
Bojan B. Radak, David Pugh, Šćepan S. Miljanić, Ljubica T. Petkovska, F.R. Cruickshank, Raymond T. Bailey
Publikováno v:
Proceedings / Indian Academy of Sciences. 103:401-404
Spectra of coincidence of CH3F IR absorption with CO2-laser emission at pressures of 2, 10 and 60 Torr were recorded by the use of a photoacoustic detection method in the whole range of CO2-laser emission. The spectra show that CH3F absorbs many CO2-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::45787fc47b2ea6867c762988300898d5
https://doi.org/10.1007/bf02842097
https://doi.org/10.1007/bf02842097
Autor:
Bojan B. Radak, David Pugh, Ljubica T. Petkovska, Raymond T. Bailey, Šćepan S. Miljanić, F.R. Cruickshank
Publikováno v:
Proceedings / Indian Academy of Sciences. 103:409-412
Spectra of coincidence of CH3C1 IR absorption with CO2-laser emission were recorded by a photoacoustic detection method in the whole range of CO2-laser emission. The samples were neat gas and mixtures with argon, at several pressures (10 to 600Torr)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49c3863efe5e52d6fd20c1f67c3740fb
https://doi.org/10.1007/bf02842099
https://doi.org/10.1007/bf02842099