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Carl Th. Pedersen C. Oliver Kappe 《Phosphorus, sulfur, and silicon and the related elements》2013,188(1-4):485-486
Abstract The formation of thioacylthioketenes has been observed in Flash Vacuum Pyrolysis of various 1,2-dithiole derivatives. In some cases C3S2, 1,2-propadiene-1,3-dithione is formed too. 相似文献
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Received March 03, 1999 相似文献
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This paper presents a treatment of material symmetry for hyperelastic rods. The rod theory of interest is based on a Cosserat
(or directed) curve with two director fields, and was developed in a series of works by Green, Naghdi and several of their
co-workers. The treatment is based on Murdoch and Cohen's work on material symmetry of Cosserat surfaces. Two material symmetry
groups are discussed: one pertains to the strain-energy function, while the other pertains to the response functions. The
paper closes by showing how the treatment relates to the form-invariant approach used in Green and Naghdi's papers and a treatment
proposed recently by Cohen.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
998.
Thomas Schmidt Malte Lenders Andrea Hillebrand Nicole van Deenen Oliver Munt Rudolf Reichelt Wolfgang Eisenreich Rainer Fischer Dirk Prüfer Christian Schulze Gronover 《BMC biochemistry》2010,11(1):11
Background
Natural rubber is a biopolymer with exceptional qualities that cannot be completely replaced using synthetic alternatives. Although several key enzymes in the rubber biosynthetic pathway have been isolated, mainly from plants such as Hevea brasiliensis, Ficus spec. and the desert shrub Parthenium argentatum, there have been no in planta functional studies, e.g. by RNA interference, due to the absence of efficient and reproducible protocols for genetic engineering. In contrast, the Russian dandelion Taraxacum koksaghyz, which has long been considered as a potential alternative source of low-cost natural rubber, has a rapid life cycle and can be genetically transformed using a simple and reliable procedure. However, there is very little molecular data available for either the rubber polymer itself or its biosynthesis in T. koksaghyz. 相似文献999.
Ivo Nischang Oliver Brueggemann Frantisek Svec 《Analytical and bioanalytical chemistry》2010,397(3):953-960
Porous polymer monoliths have emerged as unique materials for many applications, including liquid-chromatographic analyses
at an unrivaled speed, solid-phase extraction, and enzyme immobilization in capillary and microfluidic chip format. This article
reviews the state of the art in the preparation of monoliths in narrow-bore capillaries and microfluidic chips and their miniaturization
under conditions of spatial confinement. New developments in their preparation mainly using free radical polymerization techniques
with a focus on morphological aspects in view of homogeneous porous materials are described. The suitability of monoliths
for analysis of both large and small molecules is also discussed. 相似文献
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