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1.
平从  吴志明 《价值工程》2011,30(16):49-49
DSSC电池(染料敏二氧化钛纳米晶太阳能电池)作为一种新型光化学太阳能电池,具有制作工艺简单,制作成本低廉,使用性能稳定等诸多优点,在太阳能电池发展方面具有里程碑式的重要意义。本文针对染料敏化二氧化钛薄膜电极的制备及其光电性能进行了一些研究和探索。  相似文献   

2.
染料敏化太阳能电池的长期稳定性主要取决于其封装材料。本文以硅基玻璃粉封装材料为基体,经1000小时的加速光照测试,其光电转化效率保持在原来的92%。通过开放式实验将原来的师本教育模式转变为生本教育模式,大大提高了学生的主观能动性,通过本综合实验,学生了解掌握了一些材料的制备方法和测试手段,开阔了视野,提高了学生的动手能力。  相似文献   

3.
本论文通过改变前驱体浓度、水热温度等因素,使之对染料敏化太阳能电池纳米棒生长产生影响,并通过对TiO2纳米棒结构、形貌等分析,研究确定合适的染料敏化太阳能电池纳米棒制备条件,从而制备出具有较高转化效率的太阳能电池。  相似文献   

4.
目的从红花中提取红花黄色素.方法以紫外分光光度法测定红花黄色素的含量,以水为溶剂进行提取.结果水煎煮法对红花黄色素的提取率高于超声法和浸泡法.结论采用水煎煮法提取红花黄色素含量为7.33mg/ml,RSD为0.9%.  相似文献   

5.
目的:从红花中提取红花黄色素。方法:以紫外分光光度法测定红花黄色素的含量,以水为溶剂进行提取。结果:水煎煮法对红花黄色素的提取率高于超声法和浸泡法。结论:采用水煎煮法提取红花黄色素含量为7.33mg/ml,RSD为0.9%。  相似文献   

6.
目的:从红花中提取红花黄色素。方法以紫外分光光度法测定红花黄色素的含量,以水为溶剂进行提取。结果:水煎煮法对红花黄色素的提取率高于超声法和浸泡法。结论:采用水煎煮法提取红花黄色素含量为733mg/ml,RSD为0.9%。  相似文献   

7.
上海市染料研究所有限公司是一家以生产食品添加剂--"狮头牌"食用色素(食用着色剂)为主的,集科研、生产、测试、贸易为一体的高新技术企业,也是我国规模最大的定点食用色素生产厂,名列全国食品添加剂百强企业的前列."狮头牌"食用色素己连续7年获"上海市名牌产品"称号,并于2004年被认定为上海市著名商标.历经60年的发展,"狮头"着色剂已成为国内外食品添加剂行业广泛认知的品牌,在国内食品、饮料、药品和化妆品行业中享有良好的声誉.  相似文献   

8.
Y1201玉米黄色素的生产方法Y1202黑糯米天然食用色素,其用途和制造方法Y1203食用山植红色素的制备方法Y1204提取天然植物色素的原料和方法Y1205柯粑方便食品与天然拘桔红色素及其制法Y1206从火棘果中提取色素的方法Y1207一种提高紫胶红色素质量技术Y1208从辣椒中提取红色素的方法Y1209从红辣椒中提取辣椒红色素和辣椒素的新工艺Y1210密蒙花黄色素的制法Y12ll天然色素高粱红的制备工艺Y1212辣椒红色素的提取新方法Y1213快速提取无味辣椒红色素的新方法Y1214一种用于提取和分离叶绿体中色素的提层试剂的制备方法Y1215天然辣椒色素的生…  相似文献   

9.
《价值工程》2015,(33):171-172
限制太阳能电池光电转换效率的主要因素是其光谱敏感区域比较狭窄,照射在电池上的大部分太阳光没能有效地转换成电能。将稀土铕配合物掺杂入太阳能电池减反射层中以此来提高太阳能电池效率是近年来太阳能领域的研究热点。稀土铕配合物不仅使部分紫外及可见光转换为波长更适合太阳能电池吸收利用的612nm红光波段,还能有效屏蔽对太阳能电池不利的紫外光,如能将其合理有效地在太阳能电池中加以利用,势必会对太阳能电池的光电转换效率产生重要影响。本文主要介绍稀土铕元素及其配合物的转光机理和其在太阳能电池减反射层中的研究进展。  相似文献   

10.
技术领域 本发明涉及一种从黑米中提取天然色素花色苷的方法,属于天然色素花色苷的提取技术。技术背景 花色苷又名花色甙、花青素、花青苷等,是一种水溶性天然食用色素,广泛分布于自然界中,构成了植物中绝大多数品种的蓝色、红色、紫色和黄色等。花色苷安全、无毒、提取原料资源丰富,具有一定营养和药理作用,在食品、化妆品、医药领域有着巨大应用潜力。  相似文献   

11.
Books reviewed in this article:
Duncan Gallie, Catherine Marsh, and Carolyn Vogler (eds.) (1994) Social Change and the Experience of Unemployment.
Jill Rubery and Frank Wilkinson (eds.) (1994) Employer Strategy and the Labour Market.
Alison McEwan Scott (ed.) (1994) Gender Segregation and Social Change: Men and Women in Changing Labour Markets.
Roger Penn, Michael Rose, and Jill Rubery (eds.) (1994) Skill and Occupational Change.
Michael Anderson, Frank Bechhofer, and Jonathan Gershuny (eds.) (1994) The Social and Political Economy of the Household.
Duncan Gallie, Roger Penn, and Michael Rose (eds.) (1996) Trade Unionism in Recession.  相似文献   

12.
徐国虎  许芳 《物流技术》2004,(10):46-48,70
介绍了UML的建模机制,运用UML建立了自动化仓库(AS/RS)作业管理系统的模型,并使用Rational Rose2003给出了部分用例图、类图以及顺序图和配置图。  相似文献   

13.
The paper presents a simple model to study the effects of rumours on markets. Agents in our economy communicate with their local neighbours which gives rise to the possible spread of a rumour. As the rumour affects beliefs of the agents the evolution of the rumour has a direct impact on market outcomes. Our results show that if the rumour dies out long-run equilibrium prices correspond to pre-rumour values. However, if the rumour stays present it produces a price run-up for the good that is positively targeted by the rumour. Price run-ups related to rumours have been observed in empirical studies by Rose [Rose, A.M., 1951. Rumor in the stock market. Public Opinion Quarterly 15, 461–486], Pound and Zeckhauser [Pound, J., Zeckhauser, R., 1990. Clearly heard on the street: the effect of takeover rumors on stock prices. Journal of Business 63, 291–308] and Zivney et al. [Zivney, T., Bertin, W.J., Torabzadeh, K.M., 1996. Overreaction to take-over speculation. Quarterly Review of Economics and Finance 36, 89–115]. The present model provides an analytical foundation for this finding.  相似文献   

14.
The sluggishness of capital spending over the recovery has reinvigorated the debate over UK investment performance. It has frequently been alleged that the UK financial system holds back investment, while the institutions of continental European countries – particularly Germany – are more supportive of long-term spending by companies. In this article, Harold Rose examines the theoretical and factual basis for this line of argument. He warns policy-makers against acting to promote investment on the basis of arguments which are either not securely founded or which are directly contradicted by the evidence.  相似文献   

15.
Abstract

The speed at which contemporary fashion changes is such that the life of a garment can now be measured in a matter of weeks rather than months. The organisational consequences of operating in this environment are that fashion retailers have been prompted to adopt a range of quick response (QR) initiatives. QR involves responding promptly to the information contained within emerging sales trends while simultaneously accelerating the movement of product from factory to shop shelf. Drawing on the case of a UK fashion chain, this paper explores accounting's role in enacting QR. In addition, by deploying the theoretical framework of governmentality [Miller, P., & Rose, N. (1990). Governing economic life. Economy and Society, 19(1), 1–31; Rose, N., & Miller, P. (1992). Political power beyond the state: Problematics of government. British Journal of Sociology, 43(2), 173–205], the paper highlights the role of calculative technologies in the creation and sustenance of fast fashion and hence the governance of everyday dress.  相似文献   

16.
Book Reviews     
Book reviewed in this article: The Conservative Party and the Trade Unions Peter Dorey Industrial Relations and European State Traditions Colin Crouch The German Tradition of Organised Capitalism: self-government in the coal industry Martin F. Parnell Trade Unionism in Recession Duncan Gallie, Roger Penn and Michael Rose (Eds)  相似文献   

17.
Professor Rose demonstrates how the Thatcher Government's progress is much closer to that of her Labour predecessor than is realised. His graphs demonstrate dramatically how much political courage will be required to prevent welfare spending and trade union obstructions to growth dragging Government policies into the same traps.  相似文献   

18.
The above article, published online on 24 February 2010 in Wiley Online Library ( www.wileyonlinelibrary.com ) has been retracted by agreement between Jacob Rose; the General Editor, Bill Harley; and John Wiley & Sons, Ltd. The institution of the first‐named author, Bentley University, has conducted investigations that find compelling evidence that Dr. Hunton fabricated data in two other studies without the knowledge of his coauthors. The data for this article were generated by Dr. Hunton, and he did not provide evidence to support the validity of these data upon request. Based on the lack of supporting evidence from Dr. Hunton, the validity of the data cannot be confirmed. The article has been retracted to correct the academic literature and maintain standards of academic integrity. REFERENCE Hunton, J. E. and Rose, J. M. (2011). ‘Effects of Anonymous Whistle‐Blowing and Perceived Reputation Threats on Investigations of Whistle‐Blowing Allegations by Audit Committee Members’. Journal of Management Studies, 48 , 75–98. doi: 10.1111/j.1467-6486.2010.00934.x .  相似文献   

19.
Book reviews     
History and Heritage: The Social Origins of the British Industrial Relations System Alan Fox Public Employment in Western Nations Richard Rose, (ed.) The Sexual Division of Work: Conceptual Revolutions in the Social Sciences Shirley Dex Changes in Working Time: An International Review Paul Blyton Eight Hours for What We Will: Workers & Leisure in An Industrial City, 1870–1920 Roy Rozenzweig The Economic Organisation of War Communism 1918–1921 Silvana Malle  相似文献   

20.
文章介绍了磷酸盐防锈颜料,重点叙述了磷酸锌和三聚磷酸铝的防锈机理和改性方法,并简单地展望了该防锈颜料今后的发展前景。  相似文献   

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