Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Ashraf M. Alattar"'
Autor:
Ashraf M. Alattar
Publikováno v:
Iraqi Journal of Physics, Vol 14, Iss 31 (2019)
This article will address autoclave design considerations and manufacturing working with high pressure low temperature supercritical drying technique to produce silica aerogel. The design elects carbon dioxide as a supercritical fluid (31.7 oC and 72
Externí odkaz:
https://doaj.org/article/830b2dd5bb7b4d2a9fc8bddaf569c371
Publikováno v:
Journal of Optics.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eba76decd1726c5f94dbb2d8298a18f1
https://doi.org/10.1007/s12596-023-01164-3
https://doi.org/10.1007/s12596-023-01164-3
Autor:
Ashraf M. Alattar
Publikováno v:
Journal of Optics. 52:424-430
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ecaa5161407ce301017a32640993b76
https://doi.org/10.1007/s12596-022-00905-0
https://doi.org/10.1007/s12596-022-00905-0
Publikováno v:
Research in Intelligent and Computing in Engineering ISBN: 9789811575266
Image segmentation, a technology that divides images into parts, is an important technique in image processing, and is used in various disciplines, such as remote sensing, medical imaging, and industrial fields. Several methods and known algorithms a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f16bfab388eed197573e380cb9501cd
https://doi.org/10.1007/978-981-15-7527-3_32
https://doi.org/10.1007/978-981-15-7527-3_32
Publikováno v:
Photonics and Nanostructures - Fundamentals and Applications. 30:65-72
Upconversion materials, capable of energy-shifting light, have direct application in devices where the tunability of the optical spectrum can result in higher performance. Due to the low transparency of upconversion nanomaterials, it is beneficial to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::625f12132bfd024dcd053cf3be8ef77e
https://doi.org/10.1016/j.photonics.2018.04.004
https://doi.org/10.1016/j.photonics.2018.04.004
Autor:
Ashraf M. Alattar
Publikováno v:
Journal of Non-Crystalline Solids. 571:121048
The paper presents fairly coverage for the made-up and characteristics of most different forms of aerogels progressed from the original systems of silica-based. The aerogels structural and spectral properties can be tailored through synthesizing tech
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa400b8d317152c760ffc3a5d56a7bf2
https://doi.org/10.1016/j.jnoncrysol.2021.121048
https://doi.org/10.1016/j.jnoncrysol.2021.121048
Publikováno v:
Optical Materials. 118:111274
Upconversion materials, which have the ability to transfer light's intensity, have reliable implementations on instruments from which they can synthesize light spectrum to better efficiency fulfillment. It has become useful to isolate the transformed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d54f85ead67b377616cf67e96ef342dc
https://doi.org/10.1016/j.optmat.2021.111274
https://doi.org/10.1016/j.optmat.2021.111274
Publikováno v:
International Nano Letters, Vol 7, Iss 4, Pp 257-265 (2017)
We have systematically studied the relationship between synthesis pH and morphological and optical properties of silica aerogels. We have determined through SEM and BET that there is a systematic correlation between the pH of the initial silica solut
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::840338f75b478e8add87300712d7e1fa
http://link.springer.com/article/10.1007/s40089-017-0216-0
http://link.springer.com/article/10.1007/s40089-017-0216-0
Autor:
Ashraf M. Alattar, Alaa Abu Mezied
Publikováno v:
2017 International Conference on Promising Electronic Technologies (ICPET).
Retrieving images depend of specific features In Content Based Image Retrieval (CBIR). A common approach is to divide retrieval process into two stages; the first one is based on high-level features followed by the second that is based on low-level f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9d1d9846763c6eaa4be2a664d17ce86
https://doi.org/10.1109/icpet.2017.19
https://doi.org/10.1109/icpet.2017.19
Autor:
Mohamed A. H. Oudah, Ashraf M. Alattar
Publikováno v:
2017 Palestinian International Conference on Information and Communication Technology (PICICT).
Building extraction from aerial images is one of the recent topics of remote sensing used in many applications such as urban planning, disaster management, military planning, and Geographic Information Systems (GIS). One of the commonly used approach
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c5ce5992efaeb9c9ba45fdde203b011
https://doi.org/10.1109/picict.2017.22
https://doi.org/10.1109/picict.2017.22