5,903 research outputs found
Spiritualité et citoyenneté vers un islam européen. Entretien avec Cheikh Khaled Bentounès
No full textBentounes Cheikh Khaled, Samrakandi Mohammed Habib. Spiritualité et citoyenneté vers un islam européen. Entretien avec Cheikh Khaled Bentounès. In: Horizons Maghrébins - Le droit à la mémoire, N°47, 2002. Musiques d'Algérie : mémoire de la culture maghrébine. Algérie : histoire, société, théâtre, arts plastiques. pp. 183-187
Preparation and characterisation of some nano-structured catalytic materials for low-temperature oxidation of carbon monoxide
No full textThis project is focused on the synthesis, modification and characterization of rhodium based catalysts supported on MCM-41 mesoporous silica to produce well-defined active sites for catalysis of CO oxidation at low-temperature. The Rh catalysts were prepared by incipient wetness impregnation (IWI) then modified by the inclusion of different transition metal oxides (ca. CeOx, ZrOx, CrOx, Ce0.5Zr0.5Ox and Ce0.5Cr0.5Ox) via two different routes. The first was achieved by pre-modification of MCM-41 support during its synthesis using the inorganic precursors of the promoter oxides followed by the addition of the specified Rh precursor (0.5 - 2.5 wt%), i.e. post-synthesis of Rh catalysts. The second route was performed by the post addition of the promoters using their non-inorganic sources [ca. Ce(acac)3, Zr(acac)4 and bis(benzene)chromium] by the controlled surface modification (CSM) method. The catalysts were characterized by using TGA, FT-IR, N2 physisorption analysis, PXD, SEM-EDX, TEM, DR UV/Vis spectroscopy and XPS. Furthermore, the structure-performance relationship and the dependence of the preparation method towards CO oxidation were also investigated by in situ QEXAFS-MS spectroscopy in the temperature range of 300 - 573 K. The combination of soft and hard X-ray absorption edges was applied to in situ structural studies. In addition to the Rh K-edge, the Ce L3, Zr K or Cr K-edges were used as probes of the catalysts as a function of temperature (300 - 573 K) under of different ambient gases (He, 10% H2/He, 10% O2/He and 10% CO/O2/He) during activation and reaction conditions. As a result, the fractions of Rh active species, coordination numbers and atom-to-atom distances were extracted from analysis of XANES and EXAFS results. In addition, the turnover frequency (TOF) values and CO conversion% over these catalysts were also calculated. The results revealed that Rh species and/or the promoter oxides prepared by both two methods were well confined into the mesoporous framework of silica support in amorphous nano-sized scale. However, the distribution of the Rh atoms and/or the promoter oxides depends mainly on the preparation method with much more homogeneity and local vicinity in those prepared by the CSM method. Furthermore, the preparation method played a crucial rule not only in the local structure, but also in the catalysts performance towards CO oxidation with high activity for catalysts prepared by CSM
Dataset for 'The electronic structure, surface properties, and in situ N2O decomposition of mechanochemically synthesised LaMnO3'
No full textThis dataset supports the publication:
Rachel H. Blackmore, Maria Elena Rivas, George Tierney, Khaled M. H. Mohammed, Donato Decarolis, Shusaku Hayama, Federica Venturini, Georg Held, Rosa Arrigo, Monica Amboage, Pip Hellier, Evan Lynch, Mahrez Amri, Marianna Casavola, Tugce Eralp Erden, Paul Collier and Peter P. Wells. The electronic structure, surface properties, and in situ N2O decomposition of mechanochemically synthesised LaMnO3. Physical Chemistry Chemical Physics Journal (PCCP)</span
Preliminary report of the 2021-2022 seasons of the Omani-Italian Archaeological Expedition at Al-Tikha, Rustaq (Oman)
No full textComparing genetic markers' efficiencies for discrimination between two commercially important holothuroids in the Mediterranean Sea, Holothuria polii and Holothuria sanctori
No full textMohammed-Geba, Khaled, Abbas, Eman M., Ahmed, Hamdy O., Shalabi, Mohammed A., Hamed, El Sayed A. E., Abdel Razek, Fatma A., Soliman, Taha (2022): Comparing genetic markers' efficiencies for discrimination between two commercially important holothuroids in the Mediterranean Sea, Holothuria polii and Holothuria sanctori. Zootaxa 5092 (5): 559-575, DOI: https://doi.org/10.11646/zootaxa.5092.5.
sj-tiff-1-ejo-10.1177_11206721221101360 - Supplemental material for Teleophthalmology research: Where do we stand?
No full textSupplemental material, sj-tiff-1-ejo-10.1177_11206721221101360 for Teleophthalmology research:
Where do we stand? by Khaled Elubous, Saif Aldeen Alryalat, Sarah Qawasmeh, Ali Al-Ebous and Mohammed Abu-Ameereh in European Journal of Ophthalmology</p
sj-docx-2-ejo-10.1177_11206721221101360 - Supplemental material for Teleophthalmology research: Where do we stand?
No full textSupplemental material, sj-docx-2-ejo-10.1177_11206721221101360 for Teleophthalmology research:
Where do we stand? by Khaled Elubous, Saif Aldeen Alryalat, Sarah Qawasmeh, Ali Al-Ebous and Mohammed Abu-Ameereh in European Journal of Ophthalmology</p
Aeropuerto Internacional King Khaled. Riyadh/Arabia Saudita
Get PDFKing Khaled International Airport in Riyadh is the new access to the Saudi Arabia capital and to the heart of the Kingdom. It is the center of the national air transport and it has been planned to attend all the needs of the national and International air traffic, which has a fast growth in Riyadh zone. Its design is adapted to the Islamic traditions and harmonizes with the natural beauty of the desert.El aeropuerto internacional King Khaled de Riyadh es el nuevo acceso aéreo a la capital de Arabia Saudita y al corazón del reino. Es el centro del sistema de transporte aéreo nacional y está proyectado para atender las demandas de tráfico aéreo nacional e internacional, de crecimiento rápido, en la región de Riyadh. Su diseño se adapta a las tradiciones islámicas y armoniza con la belleza natural del desierto
Dataset supporting the publication "Structural selectivity of supported Pd nanoparticles: Selective ethanol ammoxidation to acetonitrile"
No full textDataset supporting the publication "Structural selectivity of supported Pd nanoparticles: Selective ethanol ammoxidation to acetonitrile" in EES Catalysis, https://doi.org/10.1039/D4EY00044G
Data is supporting the figures in the main text and ESI is presented in excel files. The data is zipped into Figures.zip file.
The data is accessible via CC BY licence.
</span
Empirical Evaluation of Extended Finite State Machine Test Suites
No full textA Master of Science thesis in Computer Engineering by Faiz Mohammed Hasan entitled, “Empirical Evaluation of Extended Finite State Machine Test Suites”, submitted in May 2022. Thesis advisor is Dr. Khaled El-Fakih. Soft copy is available (Thesis, Completion Certificate, Approval Signatures, and AUS Archives Consent Form).We present novel empirical assessments of prominent finite state machine (FSM)-based test derivation methods against their coverage of code faults. In particular, we consider many realistic extended FSM examples and their related Java implementations and then derive for these examples complete test suites using the W method and its HSI and H derivatives in addition to singe transfer fault test suites. The W, HSI, and H test suites are derived considering the case when the implementation under test (IUT) has the same number of states as the specification FSM, and we also consider W++, HSI++, and H++ test suites derived when the IUT can have one state more than the specification machine. An assessment is then provided to determine for each pair of considered test suites if there is a difference between the pair in covering the implementations faults. If the difference is found significant, we determine which test suite outperforms the other. According to conducted experiments, the W method and its derivatives do not provide the same fault coverage of code faults; in contrast to their similar coverage of FSM-based faults. We further show that the results of this result are not due to size nor length of the test suites. In addition, as W tests outperformed both HSI and H tests, we further investigated whether these differences were due to certain types of faults or are spread over all classes of faults. Besides, another assessment is provided to determine whether certain test suites have better coverage of some classes/types of code faults than others. The empirical assessments use proper data transformation of mutation scores and p-value adjustments for controlling Type I error due to multiple tests. Results and outcomes of conducted experiments are summarized.College of EngineeringDepartment of Computer Science and EngineeringMaster of Science in Computer Engineering (MSCoE
- …
