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| | LinkBack | خيارات الموضوع | طريقة العرض |
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#1
2007-10-01, 09:37 PM
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| عدت مجددا............. انا وبحثي الذي لا اعلم متى سننتهي بسم الله الرحمن الرحيم والله لا اجد ما اقوله لكم اعلم اني اتعبتكم كثيرا فكل يوم عندي موضوع جديد ولكن موضوع الNMR رفض رفضا قاطعا من قبل المشرفة على بحثي حيث انهم قالوا لي ان الموضوع متقدم كوني طلب منهم ان ابحث في NMR in 2D فاجابوني ان الموضوع معقد ومتقدم لذلك اقترحوا على موضوع carbon nano tube فأرجوا منكم ان تعطوني اي كتاب متخصص في هذا الموضوع ان شاء الله يكون هذا اخر شئ اطلبوا منكم  |
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#3
2007-10-01, 10:27 PM
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لا أعرف ماذا تريدين بالضبط ولكن... أليك هذا الملف أرجو ان يكون فيه فائدة لكي .. |
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#6
2007-10-02, 12:40 AM
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| وفقكم الله  |
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#7
2007-10-02, 12:40 AM
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| Nanotechnology in Catalysis 3 (Nanostructure Science and Technology)  Publisher: Springer Number Of Pages: 338 Publication Date: 2006-12-14 Sales Rank: 2556692 ISBN / ASIN: 0387346872 EAN: 9780387346878 Binding: Hardcover Book Description: This volume continues the tradition formed in Nanotechnology in Catalysis 1 and 2. As with those books, this one is based upon an ACS symposium. Some of the most illustrious names in heterogeneous catalysis are among the contributors. The book covers: - Design, synthesis, and control of catalysts at nanoscale - Understanding of catalytic reaction at nanometer scale - Characterization of nanomaterials as catalysts - Nanoparticle metal or metal oxides catalysts - Nanomaterials as catalyst supports - New catalytic applications of nanomaterials الرابط بالمرفقات |
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#9
2007-10-02, 01:30 AM
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| Periodic Nanostructures *Developments in Fullerene Science By Mircea V. Diudea, Csaba L. Nagy  Publisher: Springer Number Of Pages: 212 Publication Date: 2007-08 Sales Rank: ISBN / ASIN: 140206019X EAN: 9781402060199 Book Description: In Periodic Nanostructures, the authors demonstrate that structural periodicity in various nanostructures has been proven experimentally. The text covers the coalescence reactions, studied by electronic microscopy, and shows that the nanoworld is continuous, giving rise to zero- (fullerenes), one- (tubules), two-(graphite) and three-(diamond, spongy carbon) dimensional carbon allotropes. The authors explore foam-like carbon structures, which relate to ‘schwarzites’, and which represent infinite periodic minimal surfaces of negative curvature. They show that these structures contain polygons (with dimensions larger than hexagons w.r.t. to graphite) that induce this negative curvature. The units of these structures appear as nanotube junctions (produced via an electron beam) that have wide potential molecular electronics applications. Self-assembled supramolecular structures (of various tessellation) and diamond architectures are also proposed. The authors propose that the periodicity of close repeat units of such structures is most evident not only in these formations but also present in all of the carbon allotropes. It is also shown that depending on the lattice tessellation, heteroatom type, and/or doping, metal nanostructures (nanotubes in particular) can display both metallic and semiconductor characteristics. Therefore, their properties can be manipulated by chemical functionalization. The authors therefore suggest that nanostructures have heralded a new generation of nanoscale biological, chemical, and physical devices. The text also provides literature and data on the field of nanostructure periodicity and the authors’ own results on nanostructure building and energy calculations as well as topological characterization by means of counting polynomials of periodic nanostructures. The aromaticity of various coverings of graphitic structures is also discussed. This book is aimed at scientists working in the field of nanoscience and nanotechnology, Ph.D. and MSc. degree students, and others interested in the amazing nanoarchitectures that could inspire the cities of the future. الرابط بالمرفقات |
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مواضيع مشابهة للموضوع: عدت مجددا............. انا وبحثي الذي لا اعلم متى سننتهي | ||||
| الموضوع | الكاتب | القسم | الردود | آخر مشاركة |
| اللغز الذي حير العالم | prof_Taha | إستراحة الجامعة | 10 | 2008-07-24 10:48 PM |
| ما الذي يجب على المكلف اعتقاده؟ وما الذي يجب عليه علمه؟" لشيخ الإسلام ابن تيمية" | حضرموت | إستراحة الجامعة | 9 | 2007-11-12 09:41 AM |
| يرجى الصبر على قراءة الموضوع لأهميته البالغة جدا ....الله اعلم | somin | إستراحة الجامعة | 9 | 2007-02-26 11:48 AM |
| من الذي تغير ... نحن أم الزمن | atsh | إستراحة الجامعة | 20 | 2007-01-30 01:12 PM |
| الدعاء الذي هز السماء | IsmSal | إستراحة الجامعة | 11 | 2006-11-18 05:15 PM |
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