Autor: Saeed, Khalid - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Cross Entropy Clustering Approach to Iris Segmentation for Biometrics Purpose
Autorzy:: Misztal, Krzysztof
Saeed, Emil
Saeed, Khalid
Spurek, Przemysław
Tabor, Jacek
Powiązania:: https://bibliotekanauki.pl/articles/1373709.pdf
Data publikacji:: 2015
Wydawca:: Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:: CEC
cross entropy clustering
iris recognition
biometrics
Opis:: This work presents the step by step tutorial for how to use cross entropy clustering for the iris segmentation. We present the detailed construction of a suitable Gaussian model which best fits for in the case of iris images, and this is the novelty of the proposal approach. The obtained results are promising, both pupil and iris are extracted properly and all the information necessary for human identification and verification can be extracted from the found parts of the iris.
Źródło:: Schedae Informaticae; 2015, 24; 31-40
0860-0295
2083-8476
Pojawia się w:: Schedae Informaticae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Reducing Volatile Organic Compound Emissions Using Biotrickling Filters and Bioscrubber Systems
Autorzy:: Shihab, Mohammed Salim
Mhemid, Rasha Khalid Sabri
Saeed, Liqaa I.
Ismail, Hanan Haqi
Alp, Kadir
Powiązania:: https://bibliotekanauki.pl/articles/2202121.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: volatile organic sulfur compounds
ethanethiol
biotrickling filter
bioscrubber
electron acceptor
anoxic conditions
Opis:: A comparative study was conducted for differentiating between attached and suspended growth, represented by a lab-scale biotrickling filter and bio-scrubber under anoxic conditions, respectively. However, malodorous ethanethiol gas (ET) that was categorized as one of the volatile organic sulfur compounds (VOSCs) was studied using a variety of settings and parameters. In contrast, NO3− can be used as an electron acceptor in the bioconversion of ET gas to elemental sulfur and/or sulfate when no oxygen is available. Empty bed residence times (EBRTs), gas to liquid ratios (G/Ls) (40, 60, 80, 100, 150), and inlet concentrations (150, 300, 800, and 1500 mg/m3) were all investigated in relation to ET removal efficiency (RE) (30, 60, 90, and 120 s). While the G/L ratio of 80 resulted in efficient ET removal (more than 90.8% for 150 mg/m3 of inlet concentration), it could only achieve the extraction of 80.6% for 1500 mg/m3 of inlet concentration at a fixed EBRT of 60 s. These results were based on the performance of a lab-scale anoxic biotrickling filter. Even though mass transfer constraints and poor solubility of ET were factors, the performance of the biotrickling filter under anoxic settings was superior to that of the bioscrubber and improved the low oxidation rates of ET.
Źródło:: Journal of Ecological Engineering; 2022, 23, 10; 255--268
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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