Now showing items 390-409 of 4355

    • Concrete Deterioration And Repair In An Industrial Environment 

      El Kady, Mustafa H.; Abdul-Salam, M. A. ( Qatar University , 1994 , Article)
      This case study is concerned with concrete deterioration and its repair in an Industrial Plant (Qatar Petrochemical Company). Three different cases are identified according to the type and the environment of the structural ...
    • Concrete Hydration Model Characterization Using Evolutionary Optimization 

      Sun, Qianchen; Elshafie, Mohammed Z.E.B.; Rui, Yi ( Qatar Univesrity Press , 2020 , Conference Paper)
      Pile thermal integrity assessment by means of temperature measurement has received increasing attention in recent years. The thermal integrity testing method measures temperature changes during the concrete curing process; ...
    • Concrete Pavement Truck Equivalence Factors For Upgrades 

      Razouki, Sabah Said; Mohee, Sakvan Omer ( Qatar University , 1999 , Article)
      Presented in this paper are the upgrade truck equivalence factors for single unit trucks of type, 1.2 and 1.22 which are not covered by AASHTO. The equivalency factors for front and rear axles of single unit trucks were ...
    • Condition and trend of a depression-type habitat In rainfed desert rangelands of Qatar In response to fertilizer application 

      Sayed, O. H. [اسامة هنداوي سيد] ( Qatar University , 1994 , Article)
      Characteristics of a rainfed depression-type habitat in desert ranges, and its response to fertilizer application were studied. A single fertilizer application at a rate of 75 Kg ha1 prior to the rainy season improved range ...
    • Conditionally Exponential Convex Functions On Locally Compact Groups 

      El Bab, A. S. Okb [احمد عقب الباب] ( Qatar University , 1993 , Article)
      The main objectives of this study are: 1) The construction of a compact base for the convex cone of all conditionally exponential convex functions. The determination of the extreme parts of this cone.
    • Conditions Precedent in Farmout Agreements – An Overview 

      Pereira, Eduardo G.; Lewis, Madeleine J.; بيريرا, إدواردو; لويس, مادلين ( Qatar University Press , 2019 , Article)
      Conditions precedent to Farmout Agreements (FOA) are critical in ensuring that an agreement is fulfilled under conditions that are protective of the parties’ interests in the agreement. Conditions precedent offer parties ...
    • Conductance Measurements in Corrosion Studies of Aluminium 

      El Cheikh. F. M. [فتح الله محمد الشيخ]; Mortaga, M.; Assaf, F. H.; Khodari, M. ( Qatar University , 1994 , Article)
      A new method is suggested for studying the rates of dissolution of oxide film on aluminium and its alloys. The method is based on measuring the conductance between two aluminium (or its alloys) electrodes immersed in 3.0 ...
    • Cone Penetration Testing For Field Density Prediction 

      Baghdad, Zaki A.; Ghazali, Fouad M.; Al-Ahmadi, Saud M. S. ( Qatar University , 1993 , Article)
      This paper summarizes an experimental program for developing a pilot procedure to check and predict field densities of compacted soils using static cone penetration tests. Three sandy soils were tested. The testing program ...
    • Configuration and Use in Building Evaluation (CUBE3): Space Syntax Modeling of Layout in the Main Library at Qatar University 

      Alatoom, Raghad; Al-Banai, Aljazi Ali; Al-Maadeed, Ghalya Nasser; Taha, Hanae Abdelwahab; Major, Mark David ( Qatar University Press , 2021 , Poster)
      The Research and its Purpose: - To conducted a post-occupancy evaluation of the QU Main Library, drawing on fieldwork observations of entries, movement, and room/space use. - This will positively contribute to future ...
    • Congenital Anomalies in Down Syndrome Among Qatari Population 

      Al Ali, Kalid; Afifi, Nahla M.; Habboub, Lina; Al Fadel, Maiada; العلي, خالد; عفيفي, نهلة; حبوب, لينا; الفاضل, ميادة... more authors ( Qatar University , 2006 , Article)
      Down Syndrome (DS) is the major cause of mental retardation and congenital heart disease affecting the welfare of over 300,000 individuals and their families in USA. The aim of the study is to see which are the most common ...
    • Conjugated Linoleic Acid (CLA) co-treatment alleviates antidiabetic drug, rosiglitazone associated deterioration of bone remodeling 

      Ibrahim, Khadega; Cugno, Chiara; Rahman, Md Mizanur ( Qatar University Press , 2021 , Poster)
      Diabetes mellitus (DM) is a chronic metabolic disease characterized by hyperglycemia due to decreased insulin secretion, defective action or both. The rosiglitazone (RSG) is one of the oral antidiabetic drug used in type ...
    • Conjugation of CTGF with Reduced Graphene Oxide Nanoparticles for the development of wound healing hydrogel patch 

      Syed, Raza ur Rehman; augustine, Robin; Zahid, Alap ali; Hasan, anwarul ( Qatar University Press , 2020 , Poster)
      Non-healing chronic wounds are the key concern in type-2 diabetes that frequently leads to chronic infections, finally causes amputation of limbs, organs etc. Decrease in the proliferation and migration of cells such as ...
    • Constituents of catha edulis (alkaloids, triterpenoids and related substances and saponins) 

      Rizk, A. M. [عبد الفتاح محمد رزق]; Mobarak, Z. M.; El-Shihi, T. ( Qatar University , 1989 , Article)
      The study of the alkaloids of khat samples from Egypt and Yemen revealed qualitative and quantitative differences. Cathine and the dimer of cathinone occured in both samples, while norephedine was detected only in Yemen ...
    • Constituents Of Centaurea Species 

      Al Easa, H. S. [هالة سلطان العيسى]; Rizk, A. M. ( Qatar University , 1992 , Article)
      A comprehensive review of Centaurea species including all the isolated consituents is given. The biological activities of the studied species are also reported.
    • Constituents Of Cymbopogon Species 

      Heiba, H. I. [حلمي اسماعيل هيبة]; Rizk, A. M. ( Qatar University , 1986 , Article)
      A comprehensive review of the Cymbopogon species including the essential oils and their constituents is given. An account of the other components viz. non volatile terpenoids and phenolic compounds is also given. The ...
    • Constituents Of Green Beans Phaseolus Vulgaris (Lipids And Flavonoids) 

      Rizk, A.M.; Ismail, S.I.; Azzam, S.A.; Wood, G. ( Qatar University , 1992 , Article)
      Chemical study of the lipid fraction resulted in the isolation and identification of a hydrocarbon fraction (n-Czg -0-033); an aliphatic alcohol fraction (C^, Czp, €30) and a sterol fraction (stigmasterol and sitosterol). ...
    • Constituents of plants growing in qatar part xxvii: flavonoids Of cymbopogon parkeri 

      Rizk, A. M. [عبد الفتاح محمد رزق]; Hammouda, F. M.; Ismail, S. I.; Kamel, A. S.; Rimpler, H. ( Qatar University , 1995 , Article)
      The study of the flavonoids of Cymbopogon parkeri resulted the isolation and indentification of tricin and isoorientin. Three other flavonoids have been isolated and partially identified.
    • Constituents of plants growing in qatar x.* seasonal variations of the volatile oil of cymbopogon parkeri 

      Rizk, A. M. [عبد الفتاح محمد رزق]; Sandra, P.; Mashaly, M.; Heiba, H. I. ( Qatar University , 1985 , Article)
      The seasonal variation of the volatile oil of Cymbopogon parkeri Stapf. was studied. The oil content is higher during the hot dry season than during the humid hot season and the cold season. No qualitative differences among ...
    • Constituents of plants growing in qatar xxiii. Flavonoids of francoeuria crispa 

      Rizk, A. M. [عبد الفتاح محمد رزق]; Hammouda, F. M.; Ismail, S. I.; Hussiney, H. A. ( Qatar University , 1993 , Article)
      Investigation of the flavonoid constituents of Francoeuria crispa, resulted in the isolation and identification of four flavonoids: quercetin, qucrcetin-3-O-gIucoside, quercetin-7-0-glucoside and quercetin-3-methyl ether.
    • Constituents of plants growing in Qatar xxiv phytochemical investigation of salvia aegyptiaca L. 

      El Missiry, M. M. [مصطفى محمود المسيري]; Hussiney, H. A.; Ismail, S. I.; Radwan, H. M.; Rizk, A. M. ( Qatar University , 1994 , Article)
      The study of the flavonoids revealed the isolation and identification of luteolin, luteolin 7-O- glucoside, apigenin and apigenin 7-0 glucoside; their identity was proved by m.p., TLC, UV, IR and MS. Moreover, a coumarin ...