烤烟新品种中烟98的选育及评价利用

中烟98(原CF80),系选用82-4027和2028两个烤烟品系杂交,经系谱选择,定向培育而成。1999年1月通过全国烟草品种审定。该品种烟叶质量好,与优质品种K326相当;上等烟比率和烟叶含钾量较高,焦油释出量较低,烟叶配伍性强,符合目前卷烟工业要求;丰产,兼抗黑胫病、赤星病和气候斑点病,耐花叶病,适应性较广,重要经济指标和综合性状优于K326和NC89。是一个我国南北烟区均可栽培的烤烟优良新品种,具有重要的工农业利用价值。      

Anthocyanin composition of cauliflower (Brassica oleracea L. var. botrytis) and cabbage (B. oleracea L. var. capitata) and its stability in relation to thermal treatments

Violet cauliflower and red cabbage were analysed for their anthocyanin profiles before and after thermal treatments. Anthocyanins are well-noted as healthy compounds due to their antioxidant properties. Samples were analysed for total anthocyanin content by using a spectrophotometric differential pH method. An MS-based method, combining high-performance liquid chromatography (HPLC) with quadrupole tandem mass spectrometry (HPLC–MS/MS) was developed, aimed to separate, identify and quantify the main anthocyanin forms. The procedure involves a rapid and efficient pre-treatment of the samples by solid-phase extraction, followed by selective determination of all compounds in a single run analysis using HPLC–MS/MS. Structural information for the identification of compounds was obtained from their fragmentation patterns (MS/MS spectra). The compounds were separated by HPLC and detected in the multiple reaction monitoring mode (MRM), which provides a high level of selectivity for targeting the analytes in vegetables. Cauliflower and red cabbage showed differences in their anthocyanin profiles: cyanidin-3,5-diglucoside was absent in cauliflower, while it was well represented in red cabbage, together with the characteristic anthocyanin of Brassica genus, cyanidin-3-sophoroside-5-glucoside. The p-coumaryl and feruloyl esterified forms of cyanidin-3-sophoroside-5-glucoside were predominant in cauliflower, while the sinapyl one was mostly present in red cabbage. Besides, the stability of cauliflower’s anthocyanin profile was evaluated in relation to thermal pre-treatments. All thermal treatments, except microwave heating, drastically reduced total cauliflower anthocyanin content. The amount of individual anthocyanins was expressed as the percentage with respect to total anthocyanin amount, spectrophotometrically measured. Significant individual changes were observed after different thermal treatment with an isomer formation.     

闹德海水库绕坝测压管结构变更前后的比较

闹德海水库因原绕坝测压管堵塞报废.在观测工程施工设计中,拟在每坝头钻2排计5个观测孔,两坝头共计10个.根据两岸岩石地质条件,钻机钻孔后孔壁稳定,不会形成塌孔、堆石现象.因地制宜地改变了测压管结构,在岩段孔壁不设进水管及护壁衬管段,从而节省了套管,缩短了工期.     

基于Windows的VxD技术实时控制系统设计与研究

提出了在Windows 98下采用VxD技术的控制系统设计方法，并使用VxD技术设计了新疆铝厂铝板厚度、频率和振幅等实时控制系统，控制的实时性得到了明显的提高。     

从识别码技术看王码的发展

98王码和新世纪王码的末笔画“复合构成”的码元的形成过程很直接,简单明了、易辨易取,操作简单。但目前人们还是习惯地普遍使用86王码,这有一定的社会原因或客观原因。然而,新世纪王码的客观使用环境会越来越好,新世纪王码会自然取代86王码和98王码。     

精密量热系统中计算机实时监测技术的应用

本文根据Ｐｏnｓ－Ｆｌｅｉｓｃｈｍａｎｎ电解水量热模型［１］和模拟实验测得的数据，归纳出更为符合实际情况的经验公式，介绍了利用先进的计算机硬件和基于ＷＩＮＤＯＷＳ９５／９８平台的多线程编程技术，研制成以ＰＣ机实时监测、自动采集、数据处理系统为核心的大功率精密量热系统，进而准确检测发生“冷核聚变”并且记录其“过热”的完整过程。