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  1. [1861]
    عضو فعال


    تاريخ التسجيل: Jul 2006
    المشاركات: 77
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    أخواني الأفاضل أصحاب العطاء المتميز جعله الله في ميزان حسناتهم يوم القيامة:
    كنت قد طلبت عدة رسائل ماجستير ودكتوراه في موضوع الـ vortex tube ولم يصلني أي رد أرجو مساعدتي علماً أن بحثي متوقف منذ أربعة شهور في مرحلة "الدراسة النظرية" وأنا لم أستطع حتى الآن تأمين المراجع التي سأدرس بها من رسائل الدكتوراه أو الماجستير، أرجو تأمين هذه الرسائل وهي كلها رسائل بعد عام 1990:
    Dincer K (2005) Investigation of the performance of a
    Counter flow Ranque–Hilsch vortex tube. Ph.D.Thesis. Gazi
    University Institute of Science and Technology


    Baki M. An experimental study on performance of a vortex tube. MSc thesis, Graduate School of Natural and Applied Sciences, Karadeniz Technical University, Trabzon, 2004.

    Cockerill TT. Thermodynamics and fluid mechanics of a Ranque–Hilsch vortex tube. PhD thesis. University of Cambridge, 1998.

    Promvong P. A numerical study of vortex tubes with an algebraic Reynolds stress model. PhD thesis. University of London, 1997

    J. Camire´ Experimental investigation of vortex tube concepts, MS Thesis, Department of Physics, The University of British Columbia; 1995

    T. Cockerill. Ranque-Hilsch vortex tube. Master thesis, University of Cambridge, 1995.

    Y.B. Zhang. The theoretical and experimental study on vortex tube. Master thesis, Xi’an Jiaotong University, Xi’an, China, 1993.

    Q.H. Wu. The internal process analysis and the experimental investigation on the Ranque-Hilsch vortex tube. Master thesis, Xi’an Jiaotong University, Xi’an, China, 1991.

    J.B. Yang. Mathematical model of vortex tube and experimental study of optimizing performance parameters in vortex tube. Master thesis, Xi’an Jiaotong University, Xi’an, China, 1991

    وكذلك المقالات التالية علماً أنكم أفدتموني ببعض المقالات من قبل ولنفس المؤلف الذي سأضع مقالاته المطلوبة فيمايلي: (أحد الأخوة مشكوراً نزل لي مقالة رائعة لنفس المؤلف من موقع IOP):

    Ahlborn B, Keller JU, Rebhan E. The heat pump in a vortex tube. Journal of Non Equilibrium. Thermodynamics, vol. 23 (1998), pp. 159-
    165

    Ahlborn B, Groves S. Secondary flow in a vortex tube. Fluid Dynam Res 21 (2), 1997: 73–86


    Ahlborn B, Camire J, Keller JU. Low-pressure vortex tubes. J Phys D: Appl Phys. 29, 1996.pp: 1469–1472

    Promvong P. Numerical simulation of turbulent compressible vortex-tubes flow. The third ASME/JSME Joint Fluid Engineering, Sanfrancisco, USA, 1999

    A.F. Gutsol, The Ranque effect, Physics – Uspekhi 40 (6) (1997) 639–658

    Choi, B.C., Riu, K.J. An experimental study for cold end orifice of vortex tube. (1996) Transaction of the KSME B in Korea, 20 (3), pp. 1061-1073

    Bruno TJ. Applications of the vortex tube in chemical analysis Part I: introductory principle. Am Lab 1993;25:15–20.

    Bruno TJ. Applications of the vortex tube in chemical analysis. Process control and quality 3. Amsterdam: Elsevier Science Publishers BV; 1992. p. 195–207.

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  2. [1862]
    عضو


    تاريخ التسجيل: May 2007
    المشاركات: 44
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    اريد هذه الورقات لو سمحتم
    1- ieeexplore.ieee.org/iel5/45/19713/00913206.pdf
    2-

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  3. [1863]
    عضو


    تاريخ التسجيل: May 2007
    المشاركات: 44
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    ان لست مشترك في IEEE واحتاج لهذه الاوراق البحثية
    1- ieeexplore.ieee.org/iel5/45/19713/00913206.pdf
    2- ieeexplore.ieee.org/iel5/9746/30738/01423649.pdf
    3- ieeexplore.ieee.org/iel5/10755/33900/01617217.pdf
    ieeexplore.ieee.org/iel5/45/19713/00913206.pdf
    ieeexplore.ieee.org/iel5/10622/33557/01594297.pdf

    ارجو منكم المساعدة

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  4. [1864]
    عضو متميز


    تاريخ التسجيل: May 2006
    المشاركات: 767
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    ممكن لو سمحت من موقع science direct
    1-Natural products as corrosion inhibitor for metals in corrosive media — A review
    Materials Letters, Volume 62, Issue 1, 15 January 2008, Pages 113-116
    Pandian Bothi Raja and Mathur Gopalakrishnan Sethuraman

    2-Corrosion and recession of mullite in water vapor environment
    Journal of the European Ceramic Society, Volume 28, Issue 2, 2008, Pages 431-435
    Shunkichi Ueno, Tatsuki Ohji and Hua-Tay Lin

    3-Inhibition of mild steel corrosion in hydrochloric acid solution by triazole derivatives: Part II: Time and temperature effects and thermodynamic treatments
    Electrochimica Acta, Volume 53, Issue 4, 31 December 2007, Pages 1722-1730
    Hamdy H. Hassan

    4-Effect of Hydrogen on Stress Corrosion Cracking of Magnesium Alloy in 0.1M Na2SO4 Solution
    Materials Science and Engineering: A, In Press, Accepted Manuscript, Available online 21 November 2007
    Jian Chen, Jianqiu Wang, Enhou Han and Wei Ke

    5-Corrosion behavior of alumina ceramics in aqueous HCl and H2SO4 solutions
    Corrosion Science, In Press, Accepted Manuscript, Available online 17 November 2007
    Lidija ?urkovi?, Mirjana Fuduri? Jela?a and Stanislav Kurajica

    6-Introduction to atmospheric corrosion research in China
    Science and Technology of Advanced Materials, In Press, Corrected Proof, Available online 9 November 2007
    Junhua Dong, Enhou Han and Wei Ke

    7- The effects of temperature and hydrodynamics on the CO2 corrosion of 13Cr and 13Cr5Ni2Mo stainless steels in the presence of free acetic acid
    Corrosion Science, Volume 46, Issue 12, December 2004, Pages 2987-3003
    R. M. Moreira, C. V. Franco, C. J. B. M. Joia, S. Giordana and O. R. Mattos

    8-Effects of fuel impurities on the fireside corrosion of boiler tubes in advanced power generating systems—a thermodynamic calculation of deposit chemistry
    Corrosion Science, Volume 44, Issue 2, February 2002, Pages 265-283
    Nobuo Otsuka

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  5. [1865]
    تم إيقافه لمخالفة القوانين


    تاريخ التسجيل: Apr 2007
    المشاركات: 72
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    اخواني الاكارم انا مهندس من فلسطين ادرس ماجستير كونترل و لا يوجد لي اشتراك على موقع ال
    /ieeexplore
    و انا بحاجة هذه الورقة بالسرعة الممكنه و بارك الله فيكم
    A second-order feedback method for optimal control computations
    Bullock, T.; Franklin, G.
    Automatic Control, IEEE Transactions on
    Volume 12, Issue 6, Dec 1967 Page(s): 666 - 673
    Digital Object Identifier
    Summary: A second-order method for computing optimal control is described. The method computes control corrections from the state perturbations through feedback coefficients. On each successive trajectory a test is made for a conjugate point, and the algorithm automatically forms a control correction when such points occur. Unlike some earliermethods, terminal constraints of arbitrary dimensions are handled by the method. Numerical results for two cases of a non-linear example based on van der Pol's equation are included.

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  6. [1866]
    عضو


    تاريخ التسجيل: Feb 2007
    المشاركات: 48
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    السلام عليكم
    جزاك الله خيرا على مجهودك العظيم
    ارجو الحصول على موصفة الجوده ISO2200_Standard
    ولكم جزيل الشكر

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  7. [1867]
    عضو متميز
    الصورة الرمزية drisseto


    تاريخ التسجيل: Aug 2005
    المشاركات: 512
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    اقتباس المشاركة الأصلية كتبت بواسطة MOBILE3008 مشاهدة المشاركة
    اخواني الاكارم انا مهندس من فلسطين ادرس ماجستير كونترل و لا يوجد لي اشتراك على موقع ال
    /ieeexplore
    و انا بحاجة هذه الورقة بالسرعة الممكنه و بارك الله فيكم
    A second-order feedback method for optimal control computations
    Bullock, T.; Franklin, G.
    Automatic Control, IEEE Transactions on
    Volume 12, Issue 6, Dec 1967 Page(s): 666 - 673
    Digital Object Identifier
    Summary: A second-order method for computing optimal control is described. The method computes control corrections from the state perturbations through feedback coefficients. On each successive trajectory a test is made for a conjugate point, and the algorithm automatically forms a control correction when such points occur. Unlike some earliermethods, terminal constraints of arbitrary dimensions are handled by the method. Numerical results for two cases of a non-linear example based on van der Pol's equation are included.
    السلام عليكم و رحمة الله و بركاته

    أعتذر عن عدم الرد على الاخرين لأني الان مشغول جدا . و ان شاء عندما اجد وقت فراغ فسألبي طلبات اخواننا و سأوفر بعض المكتبات الجيدة و التي سترفع الغبن ان شاء الله.


    السلام عليكم و رحمة الله و بركاته

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    طلبات الأوراق العلمية و الأبحاث ... Scientific papers Requests here الملفات المرفقة

  8. [1868]
    عضو فعال


    تاريخ التسجيل: Jul 2005
    المشاركات: 130
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    يا اخ aalmasri في الانتضار ردودك السريع

    اقتباس المشاركة الأصلية كتبت بواسطة abo79 مشاهدة المشاركة
    بلا زحمة
    اريد من حضرتكم الابحاث التالية

    1- Atmospheric pressure loading displacement of SLR stations
    Bock, D. / Noomen, R. / Scherneck, H.G. , Journal of Geodynamics, 39 (3), p.247-266, Apr 2005

    2-
    Covariance intersection-based sensor fusion for sounding rocket tracking and impact area prediction

    Cesar Bolzani de Campos Ferreira, J. / Waldmann, J. , Control Engineering Practice, 15 (4), p.389-409, Apr 2007

    3-
    Spatial resolution of double-sided silicon microstrip detectors for the PAMELA apparatus
    Straulino, S. / Adriani, O. / Bonechi, L. / Bongi, M. / Bottai, S. / Castellini, G. / Fedele, D. / (...) / Ricciarini, S.B. , Nuclear Inst. and Methods in Physics Research, A, 556 (1), p.100-114, Jan 2006

    4-
    Characterization of the tropical diurnal fire cycle using VIRS and MODIS observations

    Giglio, L. , Remote Sensing of Environment, 108 (4), p.407-421, Jun 2007

    5-
    Temporal gravity field models inferred from GRACE data
    Lemoine, J.M. / Bruinsma, S. / Loyer, S. / Biancale, R. / Marty, J.C. / Perosanz, F. / Balmino, G. , Advances in Space Research, 39 (10), p.1620-1629, Jan 2007

    6-
    SMART-1 operations experience and lessons learnt
    Camino, O. / Alonso, M. / Gestal, D. / de Bruin, J. / Rathsman, P. / Kugelberg, J. / Bodin, P. / (...) / Voss, P.P. , Acta Astronautica, 61 (1), p.203-222, Jun 2007

    7-
    Properties of MgB2 superconductors with regard to space applications

    Schlachter, S.I. / Goldacker, W. / Frank, A. / Ringsdorf, B. / Orschulko, H. , Cryogenics, 46 (2), p.201-207, Feb 2006

    8-
    A fuzzy finite element procedure for the calculation of uncertain frequency response functions of damped structures:...
    De Gersem, H. / Moens, D. / Desmet, W. / Vandepitte, D. , Journal of Sound and Vibration, 288 (3), p.463-486, Dec 2005

    9-
    Investigation of ultrasonic indications in Ti alloy (Ti6Al4V) hot formed hemisphere

    Gupta, R.K. / Arumugam, M. / Karthikeyan, M.K. / Pant, B. / Ghosh, B.R. , Engineering Failure Analysis, 14 (7), p.1286-1293, Oct 2007

    10-
    DYNAMO: a Mars upper atmosphere package for investigating solar wind interaction and escape processes, and mapping
    ...
    Chassefiere, E. / Nagy, A. / Mandea, M. / Primdahl, F. / Reme, H. / Sauvaud, J.-A. / Lin, R. / (...) / Zurbuchen, T. , Advances in Space Research, 33 (12), p.2228-2235, Jan 2004

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  9. [1869]
    عضو فعال


    تاريخ التسجيل: May 2007
    المشاركات: 56
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    je cherche ces article
    W. T. Thomson. Transmission of elastic waves through a stratified solid
    medium. J. Appl. Phys, 21 :89–93, 1950.
    P. Banerjee and S. M. Manoon. A fundamental solution due to a periodic
    point force in the interior of an elastic half-space. Earth Eng. Struct. Dyn.,
    19 :91–105, 1990.
    N. A. Haskell. The dispersion of surface waves on multilayered media.
    Bull. seism. Soc. Am., 43 :17–34, 1953.
    M. Bouchon and K. Aki. Discret wavenumber representation of seismic
    source wave field. Bull. Seism. Soc. Am., 67 :259–277, 1977.
    B. L. N. Kennett. Seismic wave propagation in stratified media. Cambridge
    University Press, 1983.
    E. Kausel and R. Peek. Dynamic loads in the interior of a layered stratum :
    an explicit solution. Bull. Seism. Soc. Am., 72 :1459–1481, 1982.
    F. Chapel and C. Tsakaladis. Computation of the Green’s functions of
    elastodynamics for a layered half space through a Hankel transform, applications
    to foundation vibration and seismology. In I. Kawamoto, editor,
    Numerical Methods in Geomechanics, pages 1311–1318. Balkema, 1985.
    S. M. Candel. Simultaneous calculation of Fourier-Bessel transforms up
    to order n. J. of Computational Physics, 44 :243–261, 1981.
    F. Chapel. Boundary element method applied to linear soil-structure interaction
    on a heterogeneous soil. Earthquake Engrg. Struct. Dyn., 15 :815–
    829, 1987.
    D. Aubry and D. Clouteau. A regularized boundary element method for
    stratified media. In G. Cohen and al., editors, Math. and num. aspects of
    wave propagation, Proc. 1st Int. Conf., pages 660–668. SIAM, 1991.
    B. W. Suter. Foundations of Hankel transform algorithms. Quart. of App.
    Math., XLIX(2) :267–279, 1991.
    J. Dominguez. Boundary elements in dynamics. Comp. Mech. Publ.,
    Southampton, 1993.

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  10. [1870]
    عضو


    تاريخ التسجيل: Oct 2007
    المشاركات: 40
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    السلام عليكم و رحمة الله و بركاته, ان امكن الحصول على البحث التالي:


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