نتایج جستجو برای: c70 d42

تعداد نتایج: 894  

2002
Danyelle M. Townsend Hongxie Shen Alexandra L. Staros Laurent Gaté Kenneth D. Tew

Human ovarian carcinoma cells (C70 and C200) made resistant to cisplatin from A2780 cells demonstrated an 20-fold resistance to the drug. These same cell lines showed no collateral resistance (as compared with the wild-type) to a novel glutathione S-transferase activated prodrug { -glutamyl-amino[2-ethylN,N,N ,N -tetrakis (2-chloroethyl) phosphorodiamidate]sulfonyl-propionyl-(R)-( ) phenylglyci...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1994
I Bucsi R Aniszfeld T Shamma G K Prakash G A Olah

A purification procedure for C60 from the fullerene extract has been developed using the differential complexation of C60 and C70 with AlCl3 (or its conjugate acid) in CS2 solution. In addition to pure C60 (>99.8%), the procedure also provides C70-enriched fullerene mixture.

2015
Qiang Li

The acknowledgement text is corrected in four articles: Li, Wang & Ye [Acta Cryst. (2014), C70, 992-997], Li & Wang [Acta Cryst. (2014), C70, 1054-1056], Li [Acta Cryst. (2015), C71, 65-68] and Li, Wang & Zhou [Acta Cryst. (2015), C71, 93-96].

هدف از این پژوهش، محاسبه آنالیز حساسیت پارامترهای سینتیکی راکتور تحقیقاتی تهران با در نظر گرفتن اثر فیدبک‌های دمایی با استفاده از کد MCNPX است. پارامترهای سینتیکی شامل، کسرمؤثر نوترون‌های تأخیری ( βeff) و زمان متوسط تولید نوترون (Λ) می‌باشند. محاسبه دقیق این پارامترها برای عملکرد ایمنی و کنترل راکتورها بسیار مهم است و اهمیت به‌ سزایی در تجزیه و تحلیل دینامیکی سیستم دارد. در این تحقیق با تغییر د...

Journal: :Chemical Physics Letters 1994

2014
Mark Bodner Jiri Patera Marzena Szajewska

We describe the existence and structure of large fullerenes in terms of symmetry breaking of the C60 molecule. Specifically, we describe the existence of C70 in terms of breaking of the icosahedral symmetry of C60 by the insertion into its middle of an additional H2 decagon. The surface of C70 is formed by 12 regular pentagons and 25 regular hexagons. All 105 edges of C70 are of the same length...

2017
Grzegorz Markiewicz Anna Jenczak Michał Kołodziejski Julian J Holstein Jeremy K M Sanders Artur R Stefankiewicz

Self-assembly of multiple building blocks via hydrogen bonds into well-defined nanoconstructs with selective binding function remains one of the foremost challenges in supramolecular chemistry. Here, we report the discovery of a enantiopure nanocapsule that is formed through the self-assembly of eight amino acid functionalised molecules in nonpolar solvents through 48 hydrogen bonds. The nanoca...

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