唐钢耐火材料品种的开发应用

介绍了唐山钢铁公司炼铁、炼钢、轧钢各工序所用耐火材料自行开发和利用的情况,提出了“九五期间耐火材料新品种开发的思路。     

Effects of Botrytis cinerea infection on Champagne wine foaming properties

Qualitative effects of Botrytis cinerea infection were studied by comparing the foaming properties of Champagnes obtained from healthy grapes with those from grapes infected by B cinerea. This is of particular interest when it is considered that the foaming properties of Champagne wines are important in terms of product attractiveness for the consumer. Experiments using artificial viewing equipment clearly showed the dramatic effects on Champagne foam characteristics when grape berries were highly infected. The speed at which liquid separated from the foam (expressed as liquid height L_S) in the glass depended largely on the level of infection for Chardonnary and Pinot noir wines (+268% for Chardonnary wines at 40% infection and +627% for Pinot noir wines at 20% infection). B cinerea infection reduced the time (L_T) at which liquid first appeared in the glass; for Pinot noir wines an infection level of 20% caused very rapid drainage. The time of pouring (P_T, ie the time to fill the glass under controlled conditions) also diminished considerably at an infection level of 20% for both Pinot noir and Pinot meunier wines (?74 and ?58% respectively). Mouldiness considerably altered the foam height observed 80 s (H₈₀) after the start of pouring (?83% for Pinot noir and ?89% for Pinot meunier at 20% infection). Champagne foamability was also quantified using a sparging technique to standardise effervescence. Foamability suffered considerably (?60 to ?65%) when the B cinerea infection level was 20% as compared to control Champagnes. All wines studied had low and very similar protein contents. Differences in the concentrations of these compounds, which are generally implicated in the formation of foam in sparkling wines, could not explain the differences in Champagne foaming properties observed here. © 2001 Society of Chemical Industry     

板方坯连铸机技术改造

通过加强技术管理、促进品种开发、依靠技术进步，先后对转炉进行自动化改造、板方坯连铸机改造、合金烘烤配套使用，通过技术进步，促进连铸各项指标全面提升。     

Dietary variety, energy regulation, and obesity.

Increased variety in the food supply may contribute to the development and maintenance of obesity. Thirty-nine studies examining dietary variety, energy intake, and body composition are reviewed. Animal and human studies show that food consumption increases when there is more variety in a meal or diet and that greater dietary variety is associated with increased body weight and fat. A hypothesized mechanism for these findings is sensory-specific satiety, a phenomenon demonstrating greater reductions in hedonic ratings or intake of foods consumed compared with foods not consumed. Nineteen studies documenting change in preference, intake, and hedonic ratings of food after a food has been eaten to satiation in animals and humans are reviewed, and the theory of sensory-specific satiety is examined. The review concludes with the relevance of oral habituation theory as a unifying construct for the effects of variety of sensory-specific satiety, clinical implications of dietary variety and sensory-specific satiety on energy regulation, and suggestions for future research. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

增强新观念拓展新视野迎接新世纪

在全面总结１９９９年武钢技术质量战线工作的基础上，提出了２０００年武钢技术质量战线工作的指导思想，布置了武钢技术创新、品种质量、科技管理等方面的重点工作，对武钢职工、特别是科技工作者的工作具有指导意义和导向作用。     

Grapevine culture in trenches: root growth and dry matter partitioning

As a part of a global project aimed at comparing the physiology of several grapevine ( Vitis vinifera L.) cultivars, we tested plant cultivation in trenches under semi-controlled conditions. Vegetative growth of vines of two cultivars, Pinot Noir and Merlot, from different locations, were followed during a 3-year period. Roots of trench-grown vines grew widely, leading to a root architecture closer to that observed under field conditions than that of potted vines. In addition, the root system could be sampled exhaustively for analyses. Although morphologically different, vines of the two cultivars exhibited similar patterns in dry matter production during the whole period, except at early flowering in year 3. Surprisingly, perennial parts accounted for this difference, though both cultivars were grafted onto the same SO4 rootstock clone. Consistently, vines exhibited root necrosis at any sampling date throughout spring, this process affecting more roots for the Pinot Noir/SO4 combination than for Merlot/SO4.     

国内外生物降解性润滑剂现状及发展趋势

介绍了国外生物降解性润滑剂的种类、性能及应用情况,提出了我国生物降解性润滑剂将来的研究方向及对策意见。     

运用电脑进行品种设计

在对各种典型电脑纹制系统比较的基础上,选用并介绍了WDS-1000型电脑纹制系统的特点及存在问题。     

骨料种类对混凝土孔结构及微观界面的影响

基于RapidAir和MAP-BEI测试技术,对比研究了分别以玄武岩、砂岩和灰岩为人工骨料的大坝混凝土内部孔结构及界面特征.结果表明:配合比一定时,灰岩混凝土气泡数量最多,间距系数和平均孔径最小;砂岩混凝土气泡数量最少,间距系数和平均孔径最大,工程中应予以足够重视.界面Ca(OH)2的富集程度受骨料化学属性及物理性能(如长期吸水率)影响.上述3种骨料-浆体界面Ca(OH)2的富集程度为砂岩玄武岩灰岩,界面过渡区厚度为砂岩灰岩玄武岩,砂岩界面性能最薄弱.     

江苏省农用杀虫剂使用现状与前景分析

概述了江苏省近年农用杀虫剂使用量在5～7万t,占农药使用总量65%左右.2000年以来,江苏省农用杀虫剂使用量经历了一个由多到少、由少到多、由多到少的过程.使用农用杀虫剂最多的作物是水稻,其使用量占农药使用总量的比重在37%以上,占农用杀虫剂使用量比重在60%以上.2000年以来不同类型杀虫剂之间比例变化不大,但生产上使用的同～类型的农用杀虫剂的品种结构变化较大,特别是有机磷类的杀虫剂,变化最为明显.有机磷类杀虫剂使用量最大,约占杀虫剂使用总量的70%,其次是新烟碱类,约占18%,氨基甲酸酯类和杂环类约占12%.未来农用杀虫剂使用量将会不断减少,其结构调整的方向将是更多地增加高效低毒低残留农药和生物农药的比重.