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Implementation of GIS and Geographic RDBMS Prototype for Water Resources Management. Zeuss-Koutine Basin (South of Tunisia)

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Journal of Geographic Information System 2013年第5期5卷 429-445页

作者： Khemiri Sami Mansouri safa Khnissi Afef Zargouni Fouad Department of Geology University of Sciences of Tunis Tunis Manar II Tunisia Water Research and Technology Center Borj Cedria Tunisia

The scarcity of shallow water, which is a delicate matter in southern Tunisia, is relatively compensated by groundwater resources. Indeed, the South contains 25% of water reserves of the country whom 10% are superficial water. The different hydrogeological studies show that the Zeuss-Koutine region is composed of several aquifer systems, which may be subdivided into two distinct levels;a superficial and a deep one. Such water resources show signs of localized over- exploitation which has a serious effect on the change of the hydrosystem characteristics in this region. Recently, Tunisia proves to be very interested in the contribution of new technology in particular Geographic Information System (GIS) to resolve the problem of water resources deficit in Tunisia essentially in semiarid southern part, in addition to the increased exploitation of groundwater resources, not renewable basically in last years. Hence, preserving water resources in the short and long term is a must. This fact might be achieved by the geographical information system (GIS). To respond to this object, detailed hydrological and hydrogeological studies are efficient, and a Geographic Relational Data Base Management System (RDBMS) by MERISE model was created in this study for organization of all these data in a structured way (method) and was easily exploitable under it. In addition, a lithostratigraphic correlation by the GIS is very important for understanding of the aquifer geometry and hydrodynamic interactions. The correlation among multi data shows a high degradation increasing from the South to the North (both quality and quantity of the Zeuss-Koutine groundwater). That is why another study of the water quality (salinity) and exploitation is considered crucial.

关键词： Management GIS Geodatabase Water Resources Modeling

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Optimizing the oxide support composition in Pr-doped CeO_(2) towards highly active and selective Ni-based CO_(2) methanation catalysts

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Journal of Energy Chemistry 2022年第8期31卷 547-561,I0015页

作者： Anastasios I.Tsiotsias Nikolaos D.Charisiou Ayesha AlKhoori safa Gaber Vlad Stolojan Victor Sebastian Bart van der Linden Atul Bansode Steven J.Hinder Mark A.Baker Kyriaki Polychronopoulou Maria A.Goula Laboratory of Alternative Fuels and Environmental Catalysis(LAFEC) Department of Chemical EngineeringUniversity of Western MacedoniaGR-50100Greece Department of Mechanical Engineering Khalifa University of Science and TechnologyAbu DhabiP.O.Box 127788United Arab Emirates Center for Catalysis and Separations Khalifa University of Science and TechnologyAbu DhabiP.O.Box 127788United Arab Emirates Advanced Technology Institute Department of Electrical and Electronic EngineeringUniversity of SurreyGuildford GU24DLUK Department of Chemical Engineering and Environmental Technology Universidad de ZaragozaCampus Río Ebro-Edificio I+D50018 ZaragozaSpain Instituto de Nanociencia y Materiales de Aragón(INMA) Universidad de Zaragoza-CSICc/María de Luna 350018 ZaragozaSpain Networking Research Center on Bioengineering Biomaterials and NanomedicineCIBERBBN28029 MadridSpain Department of Chemical Engineering Delft University of TechnologyVan der Massweg 92629 HZ DelftThe Netherlands The Surface Analysis Laboratory Faculty of Engineering and Physical SciencesUniversity of SurreyGuildford GU24DLUK

In this study,Ni catalysts supported on Pr-doped Ce O_(2) are studied for the CO_(2) methanation reaction and the effect of Pr doping on the physicochemical properties and the catalytic performance is thoroughly *** is shown,that Pr^(3+)ions can substitute Ce^(4+)ones in the support lattice,thereby introducing a high population of oxygen vacancies,which act as active sites for CO_(2) *** doping can also act to reduce the crystallite size of metallic Ni,thus promoting the active metal *** performance evaluation evidences the promoting effect of low Pr loadings(5 at%and 10 at%)towards a higher catalytic activity and lower CO_(2) activation *** the other hand,higher Pr contents negate the positive effects on the catalytic activity by decreasing the oxygen vacancy population,thereby creating a volcano-type trend towards an optimum amount of aliovalent substitution.

关键词： Power-to-gas CO_(2)methanation Ni-based catalyst Pr-doped CeO_(2) Oxygen vacancy Catalytic activity Activation energy

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Epithelial-mesenchymal transition:a hallmark in pancreatic cancer stem cell migration,metastasis formation,and drug resistance

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Journal of Cancer Metastasis and Treatment 2020年第1期6卷 425-439页

作者： Ahmad R.safa Department of Pharmacology and Toxicology Indiana University School of MedicineIndianapolisIN46202USA

Metastasis,tumor progression,and chemoresistance are the major causes of death in patients with pancreatic ductal adenocarcinoma(PDAC).Tumor dissemination is associated with the activation of an epithelial-tomesenchymal transition(EMT)process,a program by which epithelial cells lose their cell polarity and cell-tocell adhesion,and acquire migratory and invasive abilities to become mesenchymal stem cells(MSC).These MSCs are multipotent stromal cells capable of differentiating into various cell types and trigger the phenotypic transition from an epithelial to a mesenchymal ***,EMT promotes migration and survival during cancer metastasis and confers stemness features to particular subsets of ***,a major problem limiting our ability to treat PDAC is the existence of rare populations of pancreatic cancer stem cells(PCSCs)or cancer-initiating cells in pancreatic *** may represent sub-populations of tumor cells resistant to therapy which are most crucial for driving invasive tumor *** cells are capable of regenerating the cellular heterogeneity associated with the primary tumor when xenografted into ***,the presence of PCSCs has prognostic relevance and influences the therapeutic response of *** express markers of cancer stem cells(CSCs)including CD24,CD133,CD44,and epithelial specific antigen as well as the drug transporter ABCG2 grow as spheroids in a defined growth medium.A major difficulty in studying tumor cell dissemination and metastasis has been the identification of markers that distinguish metastatic cancer cells from cells that are normally circulating in the bloodstream or at sites where these cells *** highlights a linkage between CSC and *** this review,The current understanding of the PCSCs,signaling pathways regulating these cells,PDAC heterogeneity,EMT mechanism,and links between EMT and metastasis in PCSCs are *** information may provide potential therapeutic s

关键词： Pancreatic cancer cancer stem cells epithelial-mesenchymal transition metastasis drug resistance

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Application of Decoration Culture of Traditional Manchu Residence in Architectural Landscape Design

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Journal of Architectural Research and Development 2020年第1期4卷 17-20页

作者： Lianying Li Dawei Xu Xi Chen safa Fadelelseed School of Landscape Architecture Northeast Forestry University Harbin 150040P.R.China 2Harbin UniversityHarbin 150086P.R.China

In recent years,China’s urban construction has been gradually influenced by Western culture and *** planning of urban development has been carried out in accordance with Western *** a result,this has prevented our local buildings and architectures to showcase unique local style and *** under the influence of global urbanization,the development trend has prevented the construction of global cities from displaying the characteristics of their respective ***,it is highly important for a nation not to lose the direction in the design of the urban landscape,and not to blindly imitating the architectural style of other countries or other *** addition,the nation and its cities should show their respective unique cultural charm and cultural characteristics and present their best to the whole world in order to promote the popularity of the cities,expand their influence and get onto a better development *** article mainly introduces the application of the decoration culture of the traditional Manchu residence in the architectural landscape design.

关键词： Traditional Manchu residence Decoration culture Landscape design

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Design and Analysis of an OSA-BR MAC Protocol for Cognitive Radio Ad Hoc Networks

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International Journal of Communications, Network and System Sciences 2014年第7期7卷 223-234页

作者： Hassan Al-Mahdi Mohamed Wahed safa Abd El-Aziz Faculty of Sciences and Arts Al Jouf UniversityAl QuryyatKSA Faculty of Computers and Information Suez Canal UniversityIsmailiaEgypt

Cognitive Radio (CR) is a new communication network paradigm introduced to solve the problems of spectrum scarcity and inefficient spectrum usage. Basically, it allows the Secondary Users (SUs) to utilize the Licensed Channels (LCs) of the Primary Users (PUs) in an opportunistic manner without causing any harmful interference to the PUs. However, there are many challenges associated with cognitive radio networks, such as the CR Medium Access Control (CR-MAC) protocols. An important issue for CR-MAC protocols is to identify whether the spectrum is licensed or unlicensed. In addition, the sudden appearance of the PU is the most important feature of the distributed CR-MAC protocols. In this paper, a multichannel CR-MAC protocol, which reacts efficiently to the appearance of the PUs, is developed. The proposed protocol is named Opportunistic Spectrum Access with backup channel and Buffered data with Resume (OSA-BR). The OSA-BR is an unaided rendezvous, asynchronous, and contention-based MAC protocol. The proposed protocol operates in heterogeneous environment, where the SUs utilize both LCs and unlicensed channel (ULs) and the activities of the Classical Users (CUs) are taken into consideration. In addition, the concept of the backup channel and the buffer with resume are introduced. The simulation results show that OSA-BR accomplishes 35% throughput gain over the SWITCH protocol and 55% over other CR-MAC protocols.

关键词： Rendezvous Cognitive Radio Ad Hoc Analytical Model

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Validation and reproducibility of the Heidelberg Edge Perimeter in the detection of glaucomatous visual field defects

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International Journal of Ophthalmology(English edition) 2019年第4期12卷 577-581页

作者： Qi N.Cui Priyanka Gogt Jonathan M.Lam safa Siraj Lisa A.Hark Jonathan S.Myers L.Jay Katz Michael Waisbourd Glaucoma Research Center Wills Eye Hospital Scheie Eye Center University of Pennsylvania Department of Ophthalmology Tel Aviv Sourasky Medical Center affiliated to the Sackler Faculty of Medicine Tel Aviv University

AIM: To validate the ability of the Heidelberg Edge Perimeter(HEP) in detecting glaucomatous visual field(VF) defects compared to the Octopus Visual Field(OVF) Analyzer and to determine the test-retest repeatability of both ***: This prospective, cross-sectional study was conducted at Wills Eye Hospital, Philadelphia, PA. Glaucoma subjects and unaffected controls underwent VF testing using HEP standard automated perimetry(SAP) Ⅲ 30-2 Adaptive Staircase Thresholding Algorithm(ASTA) FAST protocol and OVF G-TOP white-on-white strategy. Testing order was randomized. Pearson's correlation coefficient was calculated for both mean deviation(MD) and pattern standard deviation/square root of loss of variance(PSD/s LV). Receiver operating characteristic(ROC) curves were used to determine the diagnostic abilities of both modalities. Glaucoma subjects returned for repeat testing and intraclass correlation coefficients(ICCs) were calculated to assess test-retest repeatability. RESULTS: Seventy-nine subjects with glaucoma and 36 unaffected controls were enrolled. HEP and OVF were significantly correlated for both MD(r=-0.84; P<0.01) and PSD/s LV(r=0.79; P<0.01). Areas under the ROC curves(AUCs) were also comparable between HEP and OVF for both MD(0.74 and 0.79, respectively; P=0.26) and PSD/sL V(0.74 and 0.82; P=0.08). ICC was high for both HEP (0.96 for MD, 0.95 for PSD/s LV) and OVF(0.82 and 0.88, respectively). Mean test duration(min) was significantly shorter for OVF(2.63) compared to HEP(5.15; P<0.01). CONCLUSION: HEP and OVF show strong correlation for both MD and PSD/s LV, and have similar validity for detecting glaucoma. The test-retest repeatability is high for both HEP and OVF, however the average testing duration of HEP is significantly longer than that of OVF.

关键词： glaucoma Heidelberg Edge Perimeter standard automated perimetry Octopus Visual Field Analyzer visual field

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Turmeric (Curcuminoids): A Possible Effective Antiviral Herb

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Advances in Infectious Diseases 2022年第1期12卷 159-162页

作者： safa Al Hadhrami Abeer Al Battashi Hilal Al Hashami Oman Medical Specialty Board Muscat Oman Royal Hospital Muscat Oman

Turmeric is an herbal plant that is widely used as a traditional herbal medicine in many countries. Curcumin displays its anti-viral activities through several mechanisms of action. In this case report we present a 10-year-old child with herpetic vesiculo-ulcerative lesions who was treated with turmeric along with systemic acyclovir which resulted in complete healing by the third day of application.

关键词： Turmeric HSV Antiviral Effect

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Optimization of the Cooling System of Electric Vehicle Batteries

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Fluid Dynamics & Materials Processing 2022年第3期18卷 835-850页

作者： A.Heri Iswanto Iwan Harsono Alim Al Ayub Ahmed Sergushina Elena Sergeevna Stepan Krasnikov Rustem Zalilov John William Grimaldo Guerrero Liliya N.Latipova safa Kareem Hachim Public Health Department Faculty of Health ScienceUniversity of Pembangunan Nasional Veteran JakartaJakarta16426Indonesia Universitas Mataram West Nusa Tenggara83116Indonesia School of Accounting Jiujiang UniversityJiujiang330300China National Research Ogarev Mordovia State University Saransk430005Russia Russian Technological University Moscow119454Russian Nosov Magnitogorsk State Technical University Magnitogorsk455000Russian Departamento de Energía Universidad de la CostaBarranquilla080002Colombia Kazan Federal University Kazan628400Russia College of Technical Engineering The Islamic UniversityNajaf54001Iraq

The most important components of electrical vehicles are the battery and the related cooling *** subsystems play a major role in determining the overall electric vehicle *** this study,a novel cooling system with fluid in the battery cell is proposed,by which the energy storage system can be optimized through control of the temperature of the batteries.A sensitivity analysis is conducted considering the maximum temperature,the heat rate,the coolant temperature,and the geometry of the *** numerical simulations show that the parameters for the trapezoidal compartment have an impact on the thermal performance of *** optimal geometry is proposed *** is concluded that for high values of Reynolds number for which the flow becomes turbulent,a decrease in the battery temperature can be obtained thereby avoiding thermal stresses.

关键词： Thermal flow batteries geometry cavity cooling system

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Artificial Neural Networks Application to Predict Wheat Yield Using Climatic Data

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Journal of Agricultural Science and Technology(B) 2011年第1期1卷 76-88页

作者： B. safa A. Khalili M. Teshnehlab A. Liaghat Department of Agronomy and Horticulture University of Nebraska-Lineoln 202 Keim Hall Lincoln NE 68583-0915 USA Department of Irrigation and Reclamation Engineering College of Agriculture University of Tehran Karaj lran Department of Electrical Engineering K.N. Toosi Technology University Tehran lran

The goal of this study was to apply artificial neural networks to predict rain-fed wheat yield using meteorological data a few days to few months before harvesting. The climatic observation data used; were mean of daily minimum and maximum temperature, extreme of daily minimum and maximum temperature, sum of daily rainfall, number of rainy days, sum of daily sun hours, mean of daily wind speed, extreme of daily wind speed, mean of daily relative humidity, and sum of daily water requirements that were collected during 1990-1999 in Sararood Station for wheat phenological stages consisting; sowing, germination, emergence, 3rd leaves, tillering, stem formation, heading, flowering, milk maturity, wax maturity, full maturity, separately for each growing season. Then, they arranged in a matrix whose rows form each of the statistical years and the columns are meteorological factors at each phenological stage. Finally, the obtained model had the following capabilities： Prediction of wheat yield with maximum errors of 45-60 kg/ha at least two months before full maturity stage, determination of the sensitivity of each phenological stage with respect to meteorological factors, and determination of the priority order and importance of each meteorological factor effective in plant growth and crop yield.

关键词： Artificial neural network wheat yield climatic data phenological stage crop model.

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The Role of NGOs for Agribusiness Enterprises Development in Pakistan： Current Scenarios and Future Implications

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Journal of Agricultural Science and Technology(A) 2011年第6期1卷 793-801页

作者： M. Mehdi M. S. safa A. Yaseen School of Agriculture and Food Sciences Uniwrsity of Queensland Queensland 4343 Australia

This research ascertains the significant contribution of the Non-Government Organization （NGO） sector in Pakistan for the development of agribusiness enterprises. The NGO sector does not contemplate the emerging trends of agribusiness enterprises in terms of the current and future scenario in context of more efficient agro food systems under the network paradigm. Two of the many NGOs that are engaged in rural development launched various programs to support more efficient marketing systems as the precondition of better well-being. These two NGOs and their various development activities relevant to agribusiness enterprises have been analyzed in this study. The findings reveal that the evaluation matrix for the market activities of these two NGOs characterizes much potential. They are more efficient to strengthen the link between the farmers, market and rural development initiatives. However, in order to improve the linkages NGOs have to act for improving knowledge management in a more holistic way.

关键词： NGOs in Pakistan agribusiness enterprises sustainable development capacity building.

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