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E. E. Laukhina Yu. M. Shul'ga V. I. Rubtsov V. N. Vasilets V. P. Bubnov E. B. Yagubskii N. V. Avramenko M. N. Frolova 《Russian Chemical Bulletin》1995,44(5):819-822
Crystals containing up to 30 wt. % CS2, according to the data of IR and X-ray photoelectron spectroscopy, were isolated from the C60-TSeT-CS2 (TSeT is tetraselenotetracene) system. The unusually high concentration of carbon disulfide results in the complete sublimation of the crystals at a relatively high temperature (520 °C). The electron energy loss spectra of the crystals obtained were measured and analyzed.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 5, pp. 845–848, May, 1995.This work was financially supported by the Russian Foundation for Basic Research (Projects No. 93-03-18002, 93-03-18705, and 93-03-5650). 相似文献
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Teresa Basinska Stanislaw Slomkowski Slawomir Kazmierski Andrzej Dworak Mohamed M. Chehimi 《Journal of polymer science. Part A, Polymer chemistry》2004,42(3):615-623
The composition and properties of the surface layers of poly(styrene/α-t-butoxy-ω-polyglycidol) [poly(styrene/VB-polyGL)] microspheres synthesized by the radical copolymerization of styrene and α-t-butoxy-ω-vinylbenzyl-polyglycidol (VB-polyGL) macromonomers [number-average molecular weight (Mn) = 950 or 2700] were investigated with X-ray photoelectron spectroscopy, 13C NMR, and the adsorption of human serum albumin and γ-globulins. The number-average diameter of the synthesized microspheres was 220 nm. Their surface layers were rich in polyglycidol, with polyglycidol-to-polystyrene unit ratios of 0.443 (VB-polyGL with Mn = 950) and 0.427 (VB-polyGL with Mn = 2700). In suspensions of poly(styrene/VB-polyGL) particles in D2O, the polymer chains in the polyglycidol-rich surface layers were highly mobile, allowing the registration of polyglycidol 13C NMR spectra with standard procedures for polymer solutions. In these spectra, the signals of the relatively immobile polystyrene segments were absent. The spin–lattice relaxation times (T1) measured for polyglycidol in the microsphere surface layers and for VB-polyGL macromonomers in solution were very close, indicating similar degrees of motion in bound (in particle surface layers) and free (in solution) polyglycidol macromolecules. Studies of protein adsorption revealed that hydrophilic polyglycidol layers were protein-repellent. It was found that longer polyglycidol chains in particle surface layers were more mobile (higher T1 values) and provided better protection against protein adsorption. © 2003 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 42: 615–623, 2004 相似文献
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Edyta Proniewicz Yukihiro Ozaki Younkyoo Kim Leonard M. Proniewicz 《Journal of Raman spectroscopy : JRS》2013,44(3):355-361
Kinetensin (KN) and its amino acids 1–8 fragment ([des‐Leu9]KN), neuromedin N (NMN), and xenopsin (XP) and its two analogs (human XP‐1/xenin‐8 and XP‐2) belong to the neurotensin family of peptides and are known to stimulate the growth of human tumors. In this work, we report surface‐enhanced Raman scattering (SERS) studies of these peptides and discuss their structures, orientation, and mode of adsorption onto a colloidal assembly of apparently randomly adhering Ag spheres with diameters of approximately 20 – 25 nm. We show that small alternations in both the amino acid composition and tertiary structure, which induce striking biological in vitro, were responsible for the observed spectroscopic changes. Copyright © 2012 John Wiley & Sons, Ltd. 相似文献
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基于Windows XP Embedded嵌入式车辆导航系统设计与实现 总被引:2,自引:1,他引:1
介绍了INS/DR/MM车辆组合导航系统以及系统的部件组成,对系统的软硬件结构进行了分析.结合目前各主流嵌入式平台的性能,利用Windows XP Embedded (XPE)嵌入式操作系统体积小和易扩展的优势,选用Windows XP Embedded作为车辆组合导航系统的开发平台.为了满足车辆导航实时、快速的要求,设计了基于模糊逻辑的地图匹配算法.经过多次实际跑车试验证明,该嵌入式车辆导航系统可以正确实时地将地图匹配后的位置信息显示在电子地图上. 相似文献
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In this work, we apply a monotone iterative procedure to prove the existence of positive pseudo-symmetric solutions for a three-point second-order p-Laplacian boundary value problem. 相似文献
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通过与FAT文件系统的比较,分析了NTFS文件系统在磁盘上的结构,并用具体实例研究了NTFS最重要的主文件表MFT元文件。 相似文献
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