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Wyszukujesz frazę "Ali, Emad" wg kryterium: Autor


Wyświetlanie 1-5 z 5
Tytuł:
Retrofitting Heat Exchanger Network of Industrial Ethylene Glycol Plant using Heat Integration based on Pinch Analysis
Autorzy:
Ali, Emad
Wazeer, Irfan
Almutlaq, Abdulaziz
Rallapalli, Jagan
Hadj-Kali, Mohamed K.
Powiązania:
https://bibliotekanauki.pl/articles/2106483.pdf
Data publikacji:
2022
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
Heat Integration
Pinch Analysis
Ethylene Glycol
Minimum Utility
Opis:
Heat integration by pinch method is used to modify the heat exchanger network of an industrial ethylene glycol plant. The aim is to reduce the energy cost by operating the plant close to the maximum energy recovery. Pinch analysis identified a pinch temperature of 483 K, a minimum heating utility of 13,490.9 MJ/ton EO, and a minimum cooling utility of 25,697 MJ/ton EO. Using the pinch decomposition diagram and the standard procedure for matching hot and cold streams, a retrofit of the heat exchangers network is developed. The modified heat exchanger network reduces the external cooling duty by 45.5% and the external heating duty by 93.3%. This promising cost savings provide enough justification for restructuring the existing ethylene glycol plant. Moreover, an additional 6% reduction in the external cooling duty can be achieved by integrating the steam turbine below the pinch point.
Źródło:
Polish Journal of Chemical Technology; 2022, 24, 2; 8--20
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Corrosion protection of 316L stainless steel by (PVDF/HA) composite coating using a spinning coating technique
Autorzy:
Hussein, Asra Ali
Dawood, Nawal Mohammed
Al-Kawaz, Ammar Emad
Powiązania:
https://bibliotekanauki.pl/articles/2173612.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
316L SS
polyvinylidene fluoride
hydroxyapatite
Hank’s solution
corrosion resistance
polifluorek winylidenu
hydroksyapatyt
rozwiązanie Hanka
odporność na korozję
Opis:
Polymer coatings are increasingly used in varied fields and applications from simple coatings of barrier to intricated nanotechnology based composite. In the present study, polyvinylidene fluoride(PVDF)/Hydroxyapatite (HA )coatings were produced by spin coating technique over 316L SS. Scanning Electron Microscopy (SEM) and Atomic Force Microscopy (AFM) were used to observe the coated 316L SS substrates surface morphology. The corrosion protection efficiency of pure polyvinylidene fluoride and polyvinylidene fluoride/HA nanocomposite coatings on 316L SS was inspected using potentiodynamic polarization along with the ions release techniques in Hank’s solution. A superior biocompatibility and an improved protection performance against corrosion were obtained for the 316L SS samples with nanocomposite coatings compared with the pure polyvinylidene fluoride coatings and pristine 316L SS counterparts. The 316L SS samples coated by PVDF/HA nanocomposite showed enhanced corrosion protection within Hank’s solution. The corrosion of 316L SS samples within Hank’s solution increased from 92.99% to 99.99% when using 3wt% HA due to increasing the PVDF inhibition efficiency. Good agreements in the electrochemical corrosion parameters were obtained from using ions release and potentiodynamic polarization tests.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 2; art. no. e136810
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Corrosion protection of 316L stainless steel by (PVDF/HA) composite coating using a spinning coating technique
Autorzy:
Hussein, Asra Ali
Dawood, Nawal Mohammed
Al-Kawaz, Ammar Emad
Powiązania:
https://bibliotekanauki.pl/articles/2128151.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
316L SS
polyvinylidene fluoride
hydroxyapatite
Hank’s solution
corrosion resistance
polifluorek winylidenu
hydroksyapatyt
rozwiązanie Hanka
odporność na korozję
Opis:
Polymer coatings are increasingly used in varied fields and applications from simple coatings of barrier to intricated nanotechnology based composite. In the present study, polyvinylidene fluoride(PVDF)/Hydroxyapatite (HA )coatings were produced by spin coating technique over 316L SS. Scanning Electron Microscopy (SEM) and Atomic Force Microscopy (AFM) were used to observe the coated 316L SS substrates surface morphology. The corrosion protection efficiency of pure polyvinylidene fluoride and polyvinylidene fluoride/HA nanocomposite coatings on 316L SS was inspected using potentiodynamic polarization along with the ions release techniques in Hank’s solution. A superior biocompatibility and an improved protection performance against corrosion were obtained for the 316L SS samples with nanocomposite coatings compared with the pure polyvinylidene fluoride coatings and pristine 316L SS counterparts. The 316L SS samples coated by PVDF/HA nanocomposite showed enhanced corrosion protection within Hank’s solution. The corrosion of 316L SS samples within Hank’s solution increased from 92.99% to 99.99% when using 3wt% HA due to increasing the PVDF inhibition efficiency. Good agreements in the electrochemical corrosion parameters were obtained from using ions release and potentiodynamic polarization tests.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 2; e136810, 1--7
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Enhancement of Quinoa Grain Yield and Nutritional Quality by Potassium Fertilization Combined with Foliar Spraying of Seaweed Extract
Autorzy:
Ali, El-Sayed El-Shahat El-Sayed
El-Samad, Emad El-Din Hassanein Abd
Abdelaal, Hala Ahmed
AbouSekken, Mahmoud Saad
Powiązania:
https://bibliotekanauki.pl/articles/24201648.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
Chenopodium quinoa
grain yield
weight of 1000-grain
grain size
grain mineral content
grain nutritional profile
Opis:
The current work was carried out during the two growing seasons of 2016/2017 and 2017/2018 at the Experimental Station of the Environmental Studies and Research Institute, University of Sadat City, Sadat City, Menofia Governorate, Egypt. It aimed to investigate the effect of applying potassium fertilizer at 90, 140 and 190 kg K2O/ha combined with spraying applications of seaweed extract for four times in a 15-day interval starting at 40 days after sowing at rates of 0.0, 1.5 and 3.0 ml/L on the yield, mineral contents and nutritional quality of quinoa grains cv. CICA. A split-plot design was used in three replicates. Results reported that by increasing the application of potassium from 90 to 190 kg K2O/ha, gradual increases in all studied parameters of quinoa grains occurred in the seasons of 2016–2017 and 2017–2018, except for class B grain, Mg and fiber contents. Potassium application at 190 kg K2O/ha gave the highest significant values of all determined parameters in comparison with treatment of 90 kg K2O/ha. In most cases, insignificant differences were detected between potassium fertilizer levels of 140 and 190 kg K2O/ha. Spraying seaweed extract at 3.0 ml/L resulted in superiority of all studied characters except class B grain, Mg and fiber contents, followed by 1.5 ml/L treatment with insignificant differences between them in most cases. There were significant differences among spraying seaweed treatments on Ca, Fe, Mn, protein and fiber contents in both seasons, N, P and K during the first season, and grain yield/plant, total grain yield/ha and Zn content during the second season. The interaction between potassium fertilization levels and spraying applications of seaweed extract had significantly different effects on all studied characters during both seasons, except for Mg percentage. It is evident that the application of potassium fertilization at 140 or 190 kg K2O/ha combined with the spraying of seaweed extract at 3.0 ml/L caused an apparent enhancement of the yield, mineral contents and nutritional quality of quinoa grains during the two experimental seasons.
Źródło:
Journal of Ecological Engineering; 2023, 24, 3; 341--356
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Datasets and future research suggestions concerning SARS-CoV-2
Autorzy:
Szmuda, Tomasz
Ali, Shan
Özdemir, Cathrine
Syed, Mohammad Talha
Singh, Akshita
Hetzger, Tarjei Vevang
Rosvall, Philip
Fedorow, Karolina
Alkhater, Ahmed
Majlöf, Anders
Albrahim, Mohammed
Alquraya, Eyad
Dunquwah, Rakan Al
Al-hakeem, Zahraa
Almohisin, Emad
Alradhi, Mohammed
Żydowicz, Weronika Magdalena
Müller, Charlene
Egeland, Ada
Bergersen Kinstad, Aurora
Ngyuen, Jessica
Bergersen Kinstad, Martin
Al-Rubaye, Ibraheem
Al-Khazragi, Yasmin
von Dardel, Beatrice
Dave, Bhakti
Słoniewski, Paweł
Fercho, Justyna
Kierońska, Sara
Powiązania:
https://bibliotekanauki.pl/articles/1198432.pdf
Data publikacji:
2020-05-26
Wydawca:
Gdański Uniwersytet Medyczny
Tematy:
BCG
COVID-1
SARS-CoV-2
datasets
data
epidemiology
Google trends
Opis:
We gathered publicly available online data and prepared a database of epidemiology, demographics, economics, Bacille Calmette-Guérin vaccination and online search trend statistics relevant to the coronavirus disease 2019 (COVID-19). Moreover, we provide several suggestions on the use of this bioresource and reference other relevant datasets to promote research on COVID-19.
Źródło:
European Journal of Translational and Clinical Medicine; 2020, 3, 2; 80-85
2657-3148
2657-3156
Pojawia się w:
European Journal of Translational and Clinical Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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