Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Pedagogiczna Biblioteka Wojewódzka im. Komisji Edukacji Narodowej w Lublinie Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaPedagogiczna Biblioteka Wojewódzka im. Komisji Edukacji Narodowej w Lublinie
Zmień bibliotekę

Wyszukujesz frazę "Said, M.A." wg kryterium: Autor

  Lista filtrów
Dostawca treści
Wyrównaj
Wyświetlanie 1-10 z 22
Tytuł:
Design of a Solar Powered Reverse Osmosis System in Egypt
Autorzy:
Ibrahim, Said M. A.
Shabak, Ahmed G. M.
Tematy:
reverse osmosis
photovoltaic
total dissolved solids
TDS
pvro
desalination
odwrócona osmoza
fotowoltaika
całkowita ilość rozpuszczonych w płynie substancji
odsalanie
Pokaż więcej
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Powiązania:
https://bibliotekanauki.pl/articles/2052247.pdf  Link otwiera się w nowym oknie
Opis:
Scarcity of fresh water, forced many countries to get their water needs, or part of it, by means of saline water desalination. Reverse osmosis (RO) systems are useful tools in this concern. In case the grid electricity is not available or costly, photovoltaic (PV) power is necessary to derive RO systems. The present paper is concerned with providing a methodology for complete sizing and design of a photovoltaic reverse osmosis (PVRO) system in Egypt. Egypt has very favorable solar energy. A computer program was constructed to solve the mathematical equations of the model to get the numerical values. The program is capable of calculating the solar irradiation for any city in Egypt. Calculations and selection of the RO system with all connected pumps, the peak PV power needed, and the actual PV area were performed for different water demands ranging from 1-100 m3/day, and various water total dissolved solids (TDSs) of 5000, 15000, and 30000 mg/l. The cost of the complete PVRO system was also determined. The concern of the paper is related to water desalination and solar energy, which are responsible for our existence. The work also aims toward sustainable and clean environment via utilizing solar energy.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The performance of a developed diesel vehicle to run on WCO biodiesel at variable speeds and loads
Osiągi opracowanego pojazdu z silnikiem Diesla przystosowanego do zasilania biodieslem WCO przy zmiennych prędkościach i obciążeniach
Autorzy:
Ibrahim, Said M. A.
Abed, Kamal A.
Gad, M.S.
Mustafa, Hassan M.M.
Tematy:
WCO
biodiesel
vehicle
variable load
variable speed
pojazd
obciążenie zmienne
zmienna prędkość
Pokaż więcej
Wydawca:
Polska Akademia Nauk. Instytut Gospodarki Surowcami Mineralnymi i Energią PAN
Powiązania:
https://bibliotekanauki.pl/articles/59112358.pdf  Link otwiera się w nowym oknie
Opis:
Vehicle emissions and performance fueled with waste cooking oil biodiesel is the main topic of this research. Biodiesel was produced through transesterification with physical and chemical characteristics comparable to diesel. B20 is a methyl ester of 20% blended with diesel. A diesel vehicle was modified and equipped with all measuring instruments needed to perform all experiments. The variable speed and load tests were conducted on the vehicle to measure the performance and emissions at different loads (0–30 kW) and different speeds (0–33 km/h). The vehicle speed was the maximum attained for each gear with a constant fuel flow rate without external fuel control at a steady state. At a vehicle speed of 33 km/h, the greatest increases in fuel consumption and exhaust gas temperature for biodiesel B20 were 17 and 6%, respectively, as related to pure diesel. At a vehicle speed of 33 km/h, B20 reduced the distance traveled, carbon monoxide and hydrocarbon concentrations compared to diesel by 22, 9 and 10%, respectively. At a vehicle speed of 33 km/h, the increases in nitrogen oxides and oxygen concentrations of B20 were 4 and 3% higher, respec-tively, than crude diesel over the whole tested load range. The biggest increases in distance, fuel consumption, and exhaust gas temperature for B20 over diesel were 13, 3, and 2%, respectively, at a vehicle load of 30 kW. The B20 blend decreased CO and hydrocarbon emissions related to diesel by 17 and 32%, respectively, at a vehicle load of 30 kW. The increases in nitrogen oxides and oxygen concentrations of B20 across the whole load range were 11 and 3% higher than pure diesel at a vehicle load of 30 kW, respectively. Biodiesel blend B20 is suggested for application in vehicles providing that the vehicle is moderately loaded.
Głównym tematem badań podjętych w niniejszym artykule są emisje i osiągi pojazdów napędzanych biodieslem odpadowym z oleju spożywczego. Biodiesel powstał w procesie transestryfikacji o właściwościach fizycznych i chemicznych porównywalnych z olejem napędowym. B20 to 20% ester metylowy zmieszany z olejem napędowym. Zmodyfikowano pojazd z silnikiem diesla i wyposażono go we wszystkie przyrządy pomiarowe potrzebne do przeprowadzenia wszystkich eksperymentów. Przeprowadzono testy zmiennej prędkości i obciążenia pojazdu, aby zmierzyć jego osiągi i emisję przy różnych obciążeniach (0–30 kW) i różnych prędkościach (0–33 km/h). Prędkość pojazdu była maksymalną osiąganą na każdym biegu przy stałym natężeniu przepływu paliwa bez zewnętrznego sterowania paliwem w stanie ustalonym. Przy prędkości pojazdu wynoszącej 33 km/h największe wzrosty zużycia paliwa i temperatury spalin dla biodiesla B20 wyniosły odpowiednio 17 i 6% w porównaniu do czystego oleju napędowego. Przy prędkości pojazdu wynoszącej 33 km/h B20 zmniejszył przebyty dystans oraz stężenie tlenku węgla i węglowodorów w porównaniu do oleju napędowego odpowiednio o 22, 9 i 10%. Przy prędkości pojazdu wynoszącej 33 km/h przyrosty stężeń tlenków azotu i tlenu B20 były w całym badanym zakresie obciążeń odpowiednio o 4 i 3% większe niż w przypadku surowego oleju napędowego. Największy wzrost zasięgu, zużycia paliwa i temperatury spalin dla B20 w porównaniu z olejem napędowym wyniósł odpowiednio 13, 3 i 2% przy obciążeniu pojazdu 30 kW. Mieszanka B20 zmniejszyła emisję CO i węglowodorów związaną z olejem napędowym odpowiednio o 17 i 32% przy obciążeniu pojazdu 30 kW. Wzrosty stężeń tlenków azotu i tlenu B20 w całym zakresie obciążenia były odpowiednio o 11 i 3% wyższe niż w przypadku czystego oleju napędowego przy obciążeniu pojazdu 30 kW. Mieszankę biodiesla B20 zaleca się stosować w pojazdach pod warunkiem, że pojazd jest umiarkowanie obciążony.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Marine Electronic Highway Project in Straits of Malacca and Singapore: Observation on the Present Development
Autorzy:
Said, M.
Saharuddin, A.
Tematy:
Marine Electronic Highway (MEH)
Strait of Malacca
Strait of Singapore
Electronic Navigational Charts (ENC)
Hydrographic Survey
Environment Marine Information Overlays (E-MIO)
e-Navigation
UNCLOS
Pokaż więcej
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Powiązania:
https://bibliotekanauki.pl/articles/116824.pdf  Link otwiera się w nowym oknie
Opis:
Implementation of the Marine Electronic Highway (MEH) project in Straits of Malacca and Singapore will complement the efforts taken by Malaysia, Indonesia and Singapore as littoral states in enhancing safety of navigation and the prevention and control of marine pollution in the Straits. The Project Steering Committee meetings of the MEH indicate that, the progress in the implementation of its activities is in the midst of many challenging conditions. The efforts is a testament that the littoral states are working together to ensure the implementation of this project is running smoothly since the donor agencies, user States and the maritime industry have great expectations on its success. The MEH project consists of four important components such as Hydrographic Survey and Electronic Navigational Charts (ENCs) production, Environment Marine Information Overlays, Baseline Survey and Information Technology Structure. This paper will address the current status of the implementation of the four key components highlighting the development of ENCs as a vital tool to sustain the safety of navigation along the straits. The discussion in this paper is based on some preliminary survey findings and from reports of the Project Steering Committee meetings.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Review on Resonator and Muffler Configuration Acoustics
Autorzy:
Khairuddin, M. H.
Said, M. F. M.
Dahlan, A. A.
Kadir, K. A.
Tematy:
resonator review
muffler
acoustics
Pokaż więcej
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:
https://bibliotekanauki.pl/articles/176864.pdf  Link otwiera się w nowym oknie
Opis:
Nowadays, resonators are widely used in automobile, industrial applications, aerospace engineering, and some other fields. One of the unique characteristics of resonators which made them highly convenient is their acoustic capability to attenuate noise without having to use any acoustic absorptive material. The device acts by manipulating the sound waves to create mismatch impedance. Recent studies also suggest that the typical bulk size resonator with narrow frequency bandwidth is not the only option anymore, since there are newly designed resonators that are capable of having wide attenuation bandwidth and are smaller in size. Numerical and experimental measures were executed accordingly with the same purpose to obtain efficient noise attenuation results from varying resonators’ and mufflers’ configuration in terms of quantity, types, and geometry. The aim of this review is to summarize recent developments on resonator study and to try highlighting some noteworthy issues that need to be unraveled by future research. Helmholtz resonator, Quarter wave tube, Herschel-Quincke tube and helicoidal resonator are part of the numerous resonator studies that will be covered in this paper.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Irrigation Levels on Morphological Attributes and Yield of Tomato under Current and Climate Change Conditions
Autorzy:
Abdoun, Roaya M.
Darwish, Omaima S.
Hashem, Fadl A.
Shehata, Said A.
Tematy:
AquaCrop model
climate change scenario
crop simulation model
irrigation requirements
Solanum Lycopersicon
tomato
Pokaż więcej
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Powiązania:
https://bibliotekanauki.pl/articles/59113585.pdf  Link otwiera się w nowym oknie
Opis:
Water shortage consider on of the main threats facing the agriculture, mainly in the Mediterranean area. So that there is a great need to apply new methods to water resource management. The crop models are used to achieve this objective. Tomato is a significant vegetable crop globally and represent an important part of horticultural production with 180 million tons produced on over five million hectares even though few studies have validated the AquaCrop model, especially in Egypt. This study was conducted in a protected cultivation experimental farm, Agricultural Research Center (ARC), Dokki, Giza, Egypt during the winter seasons of 2019/2020 and 2020/2021. Different irrigation levels (IL): 55%, 70%, 85%, 100%, and 115% of evapotranspiration (Eto) were applied on tomato. Plant growth parameters, relative chlorophyll content (SPAD), yield, fruit quality and plant nutrients (NPK) were recorded at both seasons. Also, the aforementioned irrigation levels were used to validate the AquaCrop model on different climate change scenarios on tomato productivity in 2050 and 2100. The findings revealed that the highest plant growth parameters were obtained in 85% and 100% Eto as compared to all treatments at both seasons. In contrast, the 55% of Eto obtained the lowest values of all plant growth parameters. The number of fruits/plant, early yield, and total yield of 100% Eto were ranked secondly. Fruits quality was significantly affected by the tested ILs. The highest values of TSS, firmness and vit C of tomato fruits were obtained by 55% followed by 70% Eto. The lowest proline content was recorded at 115% of Eto in both seasons. The content of proline in plants of 70% Eto ranked secondly after 55% of Eto in both seasons. The results of AquaCrop model (Version 7.0) revealed that the crop productivity decreased by 4% and 33% of RCP4.5 and RCP8.5 scenarios, respectively, of the years 2050, 14% and 44% for the same scenarios, respectively, of the year 2100.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Combining multivariate statistical analysis to shed light on distribution and interaction of halogens in two economic ports along Red Sea Coast in Egypt
Autorzy:
El Zokm, Gehan M.
El-Said, Ghada F.
El Sayed, Abeer A.M
Tematy:
Halogens
Seawater
Sediment
Multivariate analysis
Mabahiss and Safaga bays
Red Sea
Pokaż więcej
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Powiązania:
https://bibliotekanauki.pl/articles/62689777.pdf  Link otwiera się w nowym oknie
Opis:
Mabahiss Bay and Safaga Bay are two important ports along the Red Sea coast of Egypt. The present study is the first to monitor halogen concentrations in these two ports. Certain halogens (F, Cl, Br and I) in coastal waters and sediments exhibited different behaviors. Fluoride (1.92–8.31 mg/L and 0.34–1.24 mg/g), chloride (20.76–22.68 g/L and 0.38–8.31 mg/g), bromide (95.90–151.84 mg/l and 6.66–50.61 mg/g), and iodide (2.77–39.19 μg/L and 1.71–3.76 μg/g) appeared in the seawater and sediments of Mabahiss Bay, respectively. In Safaga Bay, F, Cl, Br and I yielded ranges of (1.80–10.15 mg/L and 0.14–0.74 mg/g), (21.47–22.57 g/L and 0.68–1.42 mg/g), (15.98–146.51 mg/L and 6.13–74.59 mg/g) in seawater and sediments, respectively. In Mabashis Bay exclusively, the bromide and iodide levels in seawater increased significantly, and the sediments were vice versa. The average fluoride value in the two ports' seawater was higher than that in the unpolluted Mediterranean Sea. In contrast, the average bromide content in Mabahiss Bay seawater exceeded the Mediterranean Sea level. The seawater chloride content of the two ports was within the Mediterranean seawater's value, but the iodide concentration was lower than that of the unpolluted seawater. The application of different multivariate statistical techniques showed that halogen's distribution and halogen's geochemical characteristics control interaction in each region, ground flux, and proximity to human sources.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Travel burden and clinical presentation of retinoblastoma : analysis of 1024 patients from 43 African countries and 518 patients from 40 European countries
Autorzy:
Klett, Artur
Ribadu, Dahiru
Muma, Kangwa I.
Msukwa, Gerald
Berete, Rokia C.
Schoeman, Judy
Csóka, Monika
Alsawidi, Khalifa M.
Lukamba, Robert M.
Nkanga, Elizabeth D.
van Hoefen Wijsard, Milo
Aghaji, Ada E.
Hadjistilianou, Theodora
Kalinaki, Abubakar
Khotenashvili, Zaza
Muyen, Okwen M.
Tyau-Tyau, Harba
Mengesha, Aemero A.
Elgalaly, Dina
Scanlan, Trish A.
Sherief, Sadik T.
Da Gama, Isac V.
Du Bruyn, Magritha
Mustak, Hamzah
Wackernagel, Werner
Zein, Ekhtelbenina
Balwierz, Walentyna
Essuman, Vera A.
Benmiloud, Sarra
Kemile, Pavlin Kroumov
Reynders, David
El Kettani, Asmaa
Obono-Obiang, Ghislaine
Matua, Marchelo
Sorochynska, Tetyana
Abdullahi, Shehu U.
Pawińska-Wąsikowska, Katarzyna
Chiwanga, Faraja S.
Ademola-Popoola, Dupe S.
Ali, Amany M.
Mndeme, Furahini G.
Ushakova, Tatiana L.
Naumenko, Larisa
Barranco, Honorio
Sharabi, Shirley
Ali Elhassan, Moawia M.
Renner, Lorna A.
Moreira, Claude
Riheia, Mussagy M.
Midena, Edoardo
Bowman, Richard
Cassoux, Nathalie
Kyara, Alice
Hederova, Stanislava
Popovic, Maja Beck
Svojgr, Karel
Waddell, Keith
Boubacar, Sahadatou Adamou
Matende, Ibrahim O.
Wime, Amelia D.C.
Lecuona, Karin
Kranjc, Branka Stirn
Tateshi, Bekim
Almeida, Argentino A.
Kosh Komba Palet, Jess Elio
Stones, David K.
Painter, Sally L.
Geel, Jennifer A.
Alfa Bio, Amadou I.
Lumbroso, Livia
De Potter, Patrick
Tandili, Alketa
Portabella, Silvia Alarcón
Bornfeld, Norbert
Amani Kabesha, Theophile B.
Nyaywa, Mutale
Cheikh, Sidi Sidi
Kivelä, Tero T.
Makan, Mayuri
Veleva-Krasteva, Nevyana V.
Manda, Chatonda
Chantada, Guillermo L.
Dod, Charlotte Wolley
Keren-Froim, Naama
Sylla, Fatoumata
Perić, Sanja
Jenkinson, Helen
Adio, Adedayo
Ziko, Othman A.O.
Oscar, Alexander Hugo
Said, Azza M.A.
Ssali, Grace
Parulekar, Manoj
Ritter-Sovinz, Petra
Aldana, David García
Bascaran, Covadonga
Dragomir, Monica D.
Pompe, Manca T.
Silva, Sónia
Elbahi, Amal M.
Valeina, Sandra
Wade, Patricia D.
Papyan, Ruzanna
Latinović, Slobodanka
Begue, Nieves Martín
Antonino, Romanzo
Kabore, Rolande L.
Zondervan, Marcia
Bouda, Gabrielle C.
Ndoye Roth, Paule Aida
Saakyan, Svetlana
Davidson, Alan
Lachmann, Eva S.
Gregersen, Pernille A.
Zhilyaeva, Katsiaryna
Desjardins, Laurence
Philbert, Remezo
Naidu, Gita
Theophile, Tuyisabe
Yarovaya, Vera A.
Boehme, Marianna
Alia, Donjeta B.
Guebessi, Nissrine Bennani
Mohamedani, Ahmed A.
Ida, Russo
Osei-Bonsu, Peter
All-Eriksson, Charlotta
Paiva, Luisa
Pochop, Pavel
Seregard, Stefan
Chernodrinska, Violeta S.
Pons, Jonathan J.
Krivaitiene, Dalia
Viksnins, Maris
Bouguila, Hédi
Wali Nigeria, Amina H.
Correa Llano, Maria G.
Paintsil, Vivian
Mayet, Ismail
Msina, Mchikirwa S.
Parrozzani, Raffaele
Umar, Ali B.
Elhaddad, Alaa M.
Munier, Francis L.
Guedenon, Koffi M.
Hordofa, Diriba F.
Ilic, Vesna R.
Boumedane, Amaria
Mbumba, Freddy B.
Reddy, M. Ashwin
Raobela, Léa
Capra l, Michael
Oguego, Ngozi C.
Balaguer, Julia
Bobrova, Nadia
Kardava, Tamar
Didi Fabian, Ido
Castela, Guilherme
Hummlen, Marlies
Blum, Sharon
Murgoi, Gabriela
Al Harby, Lamis
Gandiwa, Moira
Gizachew, Zelalem
Gomel, Nir
Lysytsia, Lesia
Tamamyan, Gevorg
Traoré, Fousseyni
Fernández-Teijeiro, Ana
Hassan, Sadiq
Foster, Allen
Kruger, Mariana
Biewald, Eva M.
Nikitovic, Marina
Stathopoulos, hristina
Kepak, Tomas
Husakova, Kristina
Elzembely, Mahmoud M.
Hessissen, Laila
Fasina, Oluyemi
Moll, Annette C.
Abdallah, Elhassan
Maka, Erika
Catala-Mora, Jaum
Evina, Ted Grimbert A.
Polyakov, Vladimir G.
Stacey, Andrew W.
Musa, Kareem O.
Yarovoy, Andrey A.
Urbak, Steen F.
Neroe, Vladimir
Sagoo, Mandeep S.
Astbury, Nicholas J.
Atsiaya, Rose
Yanga, Jenny M.
Biddulph, Shelley J.
Olechowski, Andrzej
San Román Pacheco, Sonsoles
Comsa, Codruta
Brichard, Bénédicte G.
Nkumbe, Henry
Cieslik, Krzysztof
Kapelushnik, Noa
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł
Wyświetlanie 1-10 z 22

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies