Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Youssef Majdi"'
Autor:
Hassen Ghalila, Sagesse Bel Christ Kogniwali-Gredibert, Mama Nsangou, Youssef Majdi, Cyril Kenfack Assongo, Gilbert Yvon Mbesse Kongbonga, William Mbogning Feudjio, Pale Wang-Yang
Publikováno v:
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy. 252
In this study, principal component analysis (PCA) and parallel factor analysis (PARAFAC) combined with excitation-emission matrix fluorescence (EEMF) were used to determine the most efficient excitation wavelengths of engine lubricants; identify thei
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::84e0ba5948ebfe89de970c8d878f2729
https://pubmed.ncbi.nlm.nih.gov/33588363
https://pubmed.ncbi.nlm.nih.gov/33588363
Autor:
M. Niang, Youssef Majdi, Gilbert Yvon Mbesse Kongbonga, N. A. B. Faye, Hassen Ghalila, L. Chouba
Publikováno v:
Laser Congress 2020 (ASSL, LAC).
The accumulation of sediments in the harbours hinders the easy movement of boats. Dredging is a vital activity for the proper operation of harbours. On average, 40 million m3 of sediments are dredged in the harbours of Tunis and 700000 m3 in the harb
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bec2a7f8219346d9c4f34f62e10dfc12
https://doi.org/10.1364/assl.2020.jth2a.6
https://doi.org/10.1364/assl.2020.jth2a.6
Autor:
Nejm-Eddine Jaidane, William Mbogning Feudjio, Hassen Ghalila, Yvon G. Mbesse Kongbonga, Youssef Majdi, Mama Nsangou
Publikováno v:
Food Analytical Methods. 10:2539-2548
Artificial neural networks (ANNs) were built with excitation-emission matrix fluorescence (EEMF) spectra of essential oils for the investigation of their adulteration. With self-organized maps (SOMs), the clusters formed by all the types of essential
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4825bfc1c68a087ea975df3b8a0d4620
https://doi.org/10.1007/s12161-017-0823-4
https://doi.org/10.1007/s12161-017-0823-4
Autor:
Hassen Ghalila, Vasudevan Lakshminarayanan, Ahmed Ammar, Youssef Majdi, Mourad Zghal, Zohra Ben Lakhdara, S. Lahmar, Zoubeida Dhaouadi
Publikováno v:
Optics Education and Outreach V.
Teaching optics to small groups of students allows them to share ideas and leads to discussions, which will enable them to understand concepts better. This is a form of peer teaching/evaluation. This group dynamic favors creativity and inhibits obsta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc9707fc398a119ab390810dd5e9979d
https://doi.org/10.1117/12.2322164
https://doi.org/10.1117/12.2322164
Autor:
Youssef Majdi, Vasudevan Lakshminarayanan, Mourad Zghal, Ahmed Ammar, Srinivasa Varadharajan, Hassen Ghalila, S. Lahmar
Publikováno v:
14th Conference on Education and Training in Optics and Photonics: ETOP 2017.
Numerical simulations allow teachers and students to indirectly perform sophisticated experiments that cannot be realizable otherwise due to cost and other constraints. During the past few decades there has been an explosion in the development of num
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a38a3cf1c5e3eed6e985d883fe1a3270
https://doi.org/10.1117/12.2268377
https://doi.org/10.1117/12.2268377
Autor:
Sylvie Sevestre-Ghalila, Youssef Majdi, Mbesse Kongbonga, Yvon Gilbert, Marthe Boyomo Onana, Hassen Ghalila, Houda Mezlini, Zohra Ben Lakhdar
Publikováno v:
Food and Nutrition Sciences. :692-699
Results presented in this paper show the ability to analyze vegetable oils with very cheap and easy method based on fluorescence spectroscopy. We have recorded, with a very simple experimental set up, fluorescence spectra for several vegetable oils a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23e5c50572eb9b6f6d8097bbf6352ec0
https://doi.org/10.4236/fns.2011.27095
https://doi.org/10.4236/fns.2011.27095
Autor:
Yi Pan, Lionel Poisson, Muneerah Mogren Al-Mogren, Martin Schwell, Majdi Hochlaf, Kai-Chung Lau, Laurent Nahon, Gustavo A. Garcia, Youssef Majdi
Publikováno v:
Journal of Physical Chemistry A
Journal of Physical Chemistry A, American Chemical Society, 2014, 119 (23), pp.5951-5958. ⟨10.1021/jp510716c⟩
Journal of Physical Chemistry A, 2014, 119 (23), pp.5951-5958. ⟨10.1021/jp510716c⟩
Journal of Physical Chemistry A, American Chemical Society, 2014, 119 (23), pp.5951-5958. ⟨10.1021/jp510716c⟩
Journal of Physical Chemistry A, 2014, 119 (23), pp.5951-5958. ⟨10.1021/jp510716c⟩
We report on the vibronic structure of the ground state X̃(2)A″ of the thymine cation, which has been measured using a threshold photoelectron photoion coincidence technique and vacuum ultraviolet synchrotron radiation. The threshold photoelectron
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4e34b5fa14312e9df780a0c6f8101ac
https://hal.archives-ouvertes.fr/hal-01673664
https://hal.archives-ouvertes.fr/hal-01673664
Publikováno v:
12th Education and Training in Optics and Photonics Conference.
“Active Learning in Optics and Photonics”(ALOP), funded by UNESCO within its Physics Program framework with the support of ICTP (Abdus Salam International Centre for Theoretical Physics) and SPIE (Society of Photo-Optical Instrumentation Engineer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7552a5c7f6620497866c1b085775687
https://doi.org/10.1117/12.2070776
https://doi.org/10.1117/12.2070776
Autor:
Hassen Ghalila, William Mbogning Feudjio, Yvon G. Mbesse Kongbonga, Mama Nsangou, Youssef Majdi
Publikováno v:
Talanta. 130
Excitation-emission matrix fluorescence (EEMF) coupled to chemometrics was used to explore essential oils (EOs). The spectrofluorometer was designed with basic and inexpensive materials and was accompanied by appropriate tools for data pre-treatment.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d64248059cc76dcb90ba0a51a8678b99
https://pubmed.ncbi.nlm.nih.gov/25159392
https://pubmed.ncbi.nlm.nih.gov/25159392
Publikováno v:
SPIE Proceedings.
To deduce the wave nature of light, explain its behavior when it interacts with material obstacles (diffraction) or its behavior when light from two coherent sources interfere with each other (interference), we need to explain what are waves and what
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::514299385378d749f3ab38c0292df3c9
https://doi.org/10.1117/12.2208079
https://doi.org/10.1117/12.2208079