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Basic Principles Underlying Human Physiology

Health 2014年第14期6卷 1816-1821页

作者： dumitru pavel Bucharest Medical University Bucharest Romania

This is to declare that the article entitled “Basic Principles Underlying Human Physiology” [Health 6 (2014) 1816-1821] published in Health has been withdrawn due to the fact that the contents of this paper need further research and study. The article content (HTML and PDF) is removed and replaced with this announcement. The approval has been obtained from the author of this paper regarding the withdrawal of the article. In making this decision, the editorial office of Health is guided by the policies of the journal's editorial board and constrained by such legal requirements regarding libel, copyright infringement and plagiarism. In this context, Health strives to promote the circulation of scientific research, offering an ideal research publication platform to the world with specific regard to the ethical, moral and legal concerns involved. We would like to extend our sincere apologies for any inconvenience it may cause.

关键词： Specialized Autoregulation Tricuspid Homeostasis Variation

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Characterization and Thermal Behaviour of Polymer Matrix Stabilized Nematic Liquid Crystal Phase

Characterization and Thermal Behaviour of Polymer Matrix Sta...

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甘肃省化学会第二十四届年会

作者： Robert A.Shanks dumitru pavel Applied Chemistry RMIT UniversityGPO Box 2476VMelbourne3001Australia

The thermal behaviour of polymer dispersed liquid crystals (PDLC), blends of poly (ethylene -co -methylacrylic acid) (PEMA) with 4-(n-hydroxypropoylxy)-4’-cyanobiphenyl (H3CB) prepared by solvent-induced phase separation (SIPS) method, has been characterized using differential scanning calorimetry (DSC) and polarized light microscopy (POM). Study shows polymer matrix may stabilize the polymer dispersed nematic LC phase. The concentration of the mixture of PEMA’ H3CB must be least 30 wt %, which will exhibit nematic to isotropic transition phase during heating or cooling. Above 30 wt % H3CB the mixtures exhibited nematic phase, and this was detected as a splitting of the nematic-isotropic peak in the DSC thermograms. The clearing temperature of the PEMA/H3CB mixtures were higher than that of pure H3CB’s, the average increasing being 14℃, which is the evident that the polymer matrix could stable the nematic phase. This behaviour is in contrast with other reports about polymer-dispersed liquid crystals. According to Smith et al theory, the liquid-crystal solubility limit, A, in the polymer matrix was calculated to be 39.9. This value is much higher than the typical values ranging from 10 to 20 reported by smith et al.

关键词： Polymer dispersed liquid crystal LC droplet Liquid crystal, blends

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