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  1. [271]
    عضو تحرير المجلة
    الصورة الرمزية aalmasri


    تاريخ التسجيل: Jun 2006
    المشاركات: 2,016
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    اقتباس المشاركة الأصلية كتبت بواسطة أبوفراس على أحمد مشاهدة المشاركة
    حياكم الله جميعا إخوتى الأعزاء
    أنا محتاج إلى مجلات علمية وأبحات حديثة فى مجال التخزين الحرارى للطاقة الشمسية باللغة العربية أو الإنجليزية
    ولكم خالص الشكر
    أخوكم أبوفراس
    أخي ابو فراس

    استخدم موقع البحث العلمي scirus.com فستجد الكثير به ان شاء الله
    دمت بخير

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    (رب إني لما أنزلت إلي من خير فقير)


  2. [272]
    جديد


    تاريخ التسجيل: Mar 2006
    المشاركات: 2
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    السلام عليكم ورحمة الله وبركاته

    رغم انى ليس لى طلب بخصوص هذا الموضوع ولكن يمكن فى القريب العاجل إن شاء الله.

    ولكن جزاك الله خيرا وجعل مجهودك فى ميزان حسناتك وغفر الله لنا ولك .

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  3. [273]
    عضو
    الصورة الرمزية بثينة 1984


    تاريخ التسجيل: May 2006
    المشاركات: 37
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    أشكركم على هذا الجهد أريد مواقع معلومات عن تصميم الجسور

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  4. [274]
    عضو


    تاريخ التسجيل: Aug 2006
    المشاركات: 12
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    السلام عليكم ورحمة الله وبركاته
    اريد هذه الاوراق - جزاكم الله خيرا

    1- Stator slot shape design of induction motors for iron loss reduction
    Seok-Bae Park Hyang-Beom Lee Song-Yop Hahn Il-Han Park
    Dept. of Electr. Eng., Seoul Nat. Univ.;

    2- Snubber design approach for dc-dc converter based on differential evolution method
    Tezak, O.; Dolinar, D.; Milanovic, M.;
    Advanced Motion Control, 2004. AMC '04. The 8th IEEE International Workshop on
    25-28 March 2004 Page(s):87 - 91
    Digital Object Identifier 10.1109/AMC.2004.1297647

    3- Active snubbers to eliminate diode reverse recovery and achieve zero-current turn-off in DC-DC converters
    Hengchun Mao; Jacobs, M.E.;
    Telecommunications Energy Conference, 1998. INTELEC. Twentieth International
    4-8 Oct. 1998 Page(s):49 - 54
    Digital Object Identifier 10.1109/INTLEC.1998.793476

    4-Analysis of the IGBT/freewheeling diode switching behaviour during turn-on in hard switching applications
    Rahimo, M.T.; Chamund, D.J.; Shammas, N.Y.A.;
    Power Electronics and Variable Speed Drives, 1998. Seventh International Conference on (IEE Conf. Publ. No. 456)
    21-23 Sept. 1998 Page(s):381 – 386

    5-Design of IGBT with integral freewheeling diode
    Napoli, E.; Spirito, P.; Strollo, A.G.M.; Frisina, F.; Fragapane, L.; Fagone, D.;
    Electron Device Letters, IEEE
    Volume 23, Issue 9, Sept. 2002 Page(s):532 - 534
    Digital Object Identifier 10.1109/LED.2002.802590

    6-Freewheeling diode reverse-recovery failure modes in IGBT applications
    Rahimo, M.T.; Shammas, N.Y.A.;
    Industry Applications, IEEE Transactions on
    Volume 37, Issue 2, March-April 2001 Page(s):661 - 670

    7-New snubber circuit with passive energy recovery for power inverters
    He, X.; Williams, B.W.; Finney, S.J.; Qian, Z.; Green, T.C.;
    Electric Power Applications, IEE Proceedings-
    Volume 143, Issue 5, Sept. 1996 Page(s):403 – 408

    8-Optimum design of snubber circuits for thyristor assemblies using an improved PSPICE thyristor model and computational intelligence
    Elmore, M.; Heimes, F.; Ford, W.; Thrall, D.; Gattozzi, A.; Pish, S.; Pappas, J.;
    Pulsed Power Conference, 2003. Digest of Technical Papers. PPC-2003. 14th IEEE International
    Volume 1, 15-18 June 2003 Page(s):139 - 142 Vol.1
    Digital Object Identifier 10.1109/PPC.2003.1277678

    9-Effect of snubber circuit parameters on the turn-off voltage spike of large GTO thyristors
    Hughes, K.B.; Schauder, C.D.; Gernhardt, M.G.; Stacey, E.J.;
    Industry Applications Society Annual Meeting, 1993., Conference Record of the 1993 IEEE
    2-8 Oct. 1993 Page(s):1280 - 1285 vol.2
    Digital Object Identifier 10.1109/IAS.1993.299094.

    10-Analysis and design of snubber circuits for high-power GTO DC-DC converters
    Brambilla, A.; Dallago, E.;
    Power Electronics, IEEE Transactions on
    Volume 9, Issue 1, Jan. 1994 Page(s):7 - 17
    Digital Object Identifier 10.1109/63.285488

    11-Finite element 2D steady-state time harmonic field analysis of induction motor
    Kumar, A.; Marwaha, S.; Marwaha, A.
    India Annual Conference, 2004. Proceedings of the IEEE INDICON 2004. First
    Volume , Issue , 20-22 Dec. 2004 Page(s): 570 - 574
    Digital Object Identifier 10.1109/INDICO.2004.1497824

    12-Computation of harmonic stray losses of induction motors usingadaptive time stepping finite element method together with externallycoupled circuits
    Ho, S.L.; Fu, W.N.
    Electrical Machines and Drives, 1995. Seventh International Conference on (Conf. Publ. No. 412)
    Volume , Issue , 11-13 Sep 1995 Page(s):93 - 97
    Digital Object Identifier

    13-A new snubber circuit for diode-clamped four-level inverter andconverter
    In-Dong Kim; Eui-Cheol Nho
    Power Electronics Specialists Conference, 2001. PESC. 2001 IEEE 32nd Annual
    Volume 3, Issue , 2001 Page(s):1375 - 1380 vol. 3
    Digital Object Identifier 10.1109/PESC.2001.954312

    14-Three-phase Fly-back AC/DC Converter with Novel Resonant Snubber Circuit
    Huang Xiao-jun; Gong Jian; Yang Xiao-lai;
    TENCON 2005 2005 IEEE Region 10
    Nov. 2005 Page(s):1 - 5
    Digital Object Identifier 10.1109/TENCON.2005.301040
    15-A new snubber circuit for high efficiency and overvoltage limitation in three-level GTO inverters
    Jae-Hyeong Suh; Bum-Seok Suh; Dong-Seok Hyun;
    Industrial Electronics, IEEE Transactions on
    Volume 44, Issue 2, April 1997 Page(s):145 - 156
    Digital Object Identifier 10.1109/41.564152

    16-Design of a thyristor snubber circuit by considering the reverse recovery process
    Chang Woo Lee; Song Bai Park;
    Power Electronics, IEEE Transactions on
    Volume 3, Issue 4, Oct. 1988 Page(s):440 - 446
    Digital Object Identifier 10.1109/63.17965

    17-A new snubber circuit for multilevel inverter and converter
    In-Dong Kim; Eui-Cheol Nho; Bose, B.K.;
    Industry Applications Conference, 1998. Thirty-Third IAS Annual Meeting. The 1998 IEEE
    Volume 2, 12-15 Oct. 1998 Page(s):1432 - 1439 vol.2
    Digital Object Identifier 10.1109/IAS.1998.730330

    18-Comparative study of snubber circuits for DC-DC converters utilized in high power off-line power supply applications
    Rui Liu;
    Applied Power Electronics Conference and Exposition, 1999. APEC '99. Fourteenth Annual
    Volume 2, 14-18 March 1999 Page(s):821 - 826 vol.2
    Digital Object Identifier 10.1109/APEC.1999.750463

    19-An improved snubber circuit with high efficiency and overvoltage clamping in three-level inverters
    Jae-Hun Jung; Taek-Kie Lee; Dong-Suk Hyun;
    Industrial Electronics, Control, and Instrumentation, 1996., Proceedings of the 1996 IEEE IECON 22nd International Conference on
    Volume 3, 5-10 Aug. 1996 Page(s):1790 - 1795 vol.3
    Digital Object Identifier 10.1109/IECON.1996.570739

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  5. [275]
    عضو


    تاريخ التسجيل: Mar 2007
    المشاركات: 20
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    ارجو منكم اخوتي الاعزاء المصري وصقر البحث عن هذه الاوراق والرسايل الجامعية لى ولكم منى الشكر اجزله

    • Liang, Jenn-Tai , “An experimental study of conformance treatments using crosslinked polyacrylamide polymer” PhD. Thesis, THE UNIVERSITY OF TEXAS AT AUSTIN, 1988, pp181
    • Cheng, M. 2006. A Modeling and Experimental Study of Pre-Gel Aggregate Growth during the Gelation of a Polyacrylamide-Chromium(III) Acetate Gel System. Ph.D. Thesis. University of Kansas: Lawrence
    • Huang, Chyi-Gang. 1983. An Experimental Study of the In-Situ Gelation of Chromium(III)-Polyacrylamide Polymer Systems in Porous Media. Ph.D. Thesis. University of Kansas: Lawrence, KS.
    • Nguyen, T. 2003. Effect of Composition of a Polyacrylamide - Chromium(III) Acetate Gel on the Magnitude of Gel Dehydration and Disproportionate Permeability Reduction. M.S. Thesis. University of Kansas: Lawrence, KS
    • Wang, Chunyu. 2002. The Rate of Pre-Gel Aggregate Growth in Gelled Polymer System Used to Reduce the Permeability of Porous Media. M.S. Thesis. University of Kansas: Lawrence, KS.
    • Al-Assi, Abdulwahed A. 2000. An Experimental Study of the Flow Behavior of HiVis 350 Without and With Aluminum Citrate in Viscometers and Sandpacks. M.S. Thesis. University of Kansas: Lawrence, KS.
    • Jordan, Deborah S. 1981. A Study of the Effect of Temperature on Gelation Time for Polyacrylamide-Chromium(III) Systems and the Role of the Generation of Chromium(III) in the Reaction Mechanism. M.S. Thesis. University of Kansas: Lawrence, KS.
    • K. Chan et al.:”pushing out oil with conformance control” oil field review, 6, 44-58, (April 1994).
    • D. D. Sparlin and R. W. Hagen, Jr.: “Controlling water in producing operations,” World Oil, 199, 137-142, (July 1984).
    • Liqat Ali and M. A. Barufet.: “Profile Modification due to Polymer Adsorption in Reservoir Rocks,” Energy and Fuels, 8, 1217-1222, (1994).

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  6. [276]
    عضو متميز
    الصورة الرمزية saqure


    تاريخ التسجيل: Apr 2007
    المشاركات: 153
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    Red face

    اقتباس المشاركة الأصلية كتبت بواسطة ayoobi مشاهدة المشاركة
    ارجو منكم اخوتي الاعزاء المصري وصقر البحث عن هذه الاوراق والرسايل الجامعية لى ولكم منى الشكر اجزله

    • Liang, Jenn-Tai , “An experimental study of conformance treatments using crosslinked polyacrylamide polymer” PhD. Thesis, THE UNIVERSITY OF TEXAS AT AUSTIN, 1988, pp181
    • ............
    • due to Polymer Adsorption in Reservoir Rocks,” Energy and Fuels, 8, 1217-1222, (1994).
    السلام عليكم.....

    إن شاء الله يا أخى نوفر لك ما طلبت....ولكن معذرة لأنى منشغل جداً هذه الأيام ، فأرجو منك الإنتظار قليلاً....
    والسلام عليكم

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  7. [277]
    عضو


    تاريخ التسجيل: May 2006
    المشاركات: 35
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    I need EBCVD technique

    السلام عليكم ورحمة الله وبركات

    I need quickly, documentations or sites about technique of ELCTRON BEAM BY CHIMICAL VAPOR DEPOSITION (EBCVD)
    السلام عليكم ورحمة الله وبركا

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  8. [278]
    جديد


    تاريخ التسجيل: Jan 2007
    المشاركات: 7
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    السلام عليكم و رحمة الله
    أحتاج إلى صور طبية للمخ من نوع IRM
    I need the IRM médical images of brain in the normal case and tumorols case and their caracteristics
    لمن لديه هذه الصور .
    و شكرا جزيلا و جزاكم الله كل خير

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  9. [279]
    جديد


    تاريخ التسجيل: Dec 2006
    المشاركات: 2
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    السلام عليكم انا جدا محتاجة الي اوراق بحثية تتعلق بمايلي
    power system analysis
    1-load flow (types of busbar
    2-اي شي يتعلق بpower system stability
    اي اوراق بحثية في هذا المجال تفيد في متطلبات بحثي...............مع فائق الشكر

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  10. [280]
    عضو


    تاريخ التسجيل: Dec 2006
    المشاركات: 28
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    please i need help

    please i need help to find this papers

    1- Nasi, M., M. Alikoski and D. C. White, Advanced Control of Acetylene Hydrogenation Reactors, hydrocarbons processing June (1985)

    2- Malik, S. A. and D. A. Fortin, Non-linear Constrained Computer Control of Hydrogenation
    Reactions in Acetylene Converter, AIChE Annual Meeting, San Francisco, (1989).

    thanks for helping me

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