光通信用塑料光纤及其系统应用

详细分析了塑料光纤的结构、特性以及其相关通信系统网络组件;分析了应用质子注入技术可以解决塑料光纤通信系统光探测器光敏面积和响应带宽之间的矛盾;最后通过最新的塑料光纤通信系统应用总结了塑料光纤的现状,讨论了POF通信系统其面临的问题。     

Mode structure of laser emission from ZnO Nanorods with one metal mirror

The effect of the length of ZnO nanorods (500 nm in diameter) on the mode structure of their lasing in the ultraviolet spectral region is studied by optical luminescence microscopy. It is shown that separate nanorods with a metal mirror at one of the end faces exhibit only two or three laser modes at small nanoresonator lengths (8–20 μm). The different optical losses of longitudinal and transverse waveguide modes are established for nanorods lying on a glass substrate. An increase in the optical Q factor and a decrease in the lasing thresholds can be attributed to optical reflection from the metal mirror at the end face of the nanorod.     

Identification of cocoa butter equivalents added to cocoa butter by fatty acid composition of the triacylglycerol sub-fractions separated by Ag+-HPLC – II –

 In a previous study the fatty acid compositions of triacylglycerol sub-fractions, separated by Ag⁺-HPLC, were studied in samples of cocoa butter, cocoa butter equivalents (CBE) and some of their mixtures. In this paper similar research is described which was carried out on three other CBE (Illexao 30–61, Illexao 30–63, Illexao 30–71). The results show the particular significance of the fully saturated sub-fraction, in which notable percentage changes in C16 : 0 and C18 : 0 contents were also detectable in the two mixtures with the lowest CBE content (5% or 15%, w/w) relative to genuine cocoa butter. Multiple regression analysis was used to verify the percentages changes of fatty acid contents in the fully saturated sub-fraction as a function of the percentage of CBE added to genuine cocoa butter. Received: 19 December 1997 / Revised version: 25 June 1998     

酒类专用炭在新型白酒中的应用探讨

阐述了酒类专用炭在新型白酒中的应用,依酒类专用炭型号不同,功能不同,将其分别用于新型白酒生产过程的不同阶段,不仅提高了产品质量,又降低了产品成本。     

如何搞好冬季浓香型曲酒生产

针对浓香型曲酒冬季生产要做好几方面工作,从冬季入窖的淀粉浓度、水分、温度、酸度及用曲量和窖池管理等方面进行阐述,总结了冬季浓香型曲酒实际生产中所采取的有效措施。     

产酯酵母诱变育种

产酯酵母稀释液经紫外线照射处理后倾注平皿培养,挑选长出的菌落接种到试管培养,用自制杜氏发酵管通过产二氧化碳数量进行初筛,然后通过生理生化分析,复筛出优良菌株。本方法简单实用,值得发酵工厂菌种工作者参考。     

我国葡萄酒工业50年

建国５０周年的今天,我国的葡萄酒工业有了突破性的发展,从产量、工艺、设备、基地建设、科学文化等各方面的发展足以证明我国的葡萄酒工业会更加美好     

葡萄酒酵母繁殖和发酵技术条件

介绍了葡萄酒发酵过程中 ,酵母的生长、繁殖和发酵所需的温度条件、通风条件、营养条件和酸度条件等最佳技术条件     

复合氨基酸溶液在地王低度浓香型酒体中的作用研究

阐述了老熟催化剂———复合氨基酸溶液在低度浓香型酒体中的作用机理。实验表明 ,该试剂对低度浓香型酒体具有除辣、缓冲、稳定质量的功能。该试剂与汪洋酒炭配合使用效果更好