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TEDA(Tianjin Economic-technological Development Area)——A General Survey, Experience and the Plan for Future Development. 被引量:2
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作者 Tian gui-ming Chi Chang-gui Wan Qian Spokesman, Director of the Commission Office of TEDA. Visiting Professor of Tianjin Institute of Commerce M. A. of Economies, Vice Director of the Commission Office of TEDA Deputy Chief of Secretary Section of the Commission Office of TEDA Shen Huan 《南开经济研究》 CSSCI 北大核心 1994年第S1期26-34,共9页
Since its establishment about ten years ago, TEDA has taken advantage of eachopportune time created by China’s policy of opening wider and wider to the outsideworld and the rapid economic growth to deepen its reform ... Since its establishment about ten years ago, TEDA has taken advantage of eachopportune time created by China’s policy of opening wider and wider to the outsideworld and the rapid economic growth to deepen its reform and extend its exploitation,and thus has maintained a favorable momentum and an extraordinary high speed foreconomic development. With the total economic output of the whole area raised to 展开更多
关键词 TEDA Tianjin Economic-technological Development Area A General Survey experience and the Plan for Future Development
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Modeling of a Demethanizer Tower Using Statistical Tools 被引量:1
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作者 Fernando D'Almeida Carlos Pires 《Journal of Environmental Science and Engineering(A)》 2015年第3期124-130,共7页
Monitoring of industrial plant performance and detection on flaws is important to the successful operation on industrial production units. Malfunctioning equipment can greatly impact plant performance by reducing the ... Monitoring of industrial plant performance and detection on flaws is important to the successful operation on industrial production units. Malfunctioning equipment can greatly impact plant performance by reducing the efficiency and increasing the production cost. Phenomenological equations cannot properly describe industrial processes. Thus, it is necessary to develop new equations for model industrial operations. The purpose of this study is to develop an empirical model for industrial demethanizer tower which is malfunctioning due to an error in the design in one of its plates. A nonlinear statistical model was designed to predict the pressure variation in the column, and consequently, the flooding conditions. This model was validated using industrial data to predict the maximum loads in the column. 展开更多
关键词 Demethanizer tower planning experiments industrial data empirical model.
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Development of New Macadamia Products
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作者 Thamires Canuto de Almeida e Silva Leonardo da Silva Arriechet Dermeval Jos6 Mazzini Sartori 《Journal of Chemistry and Chemical Engineering》 2013年第8期698-710,共13页
The macadamia tree (macadamia integrifolia maiden & betche), originally from Australia, has smooth and rounded fruits, this walnut produces richly flavoured nuts, which are used "in natura" accompanying appetizer... The macadamia tree (macadamia integrifolia maiden & betche), originally from Australia, has smooth and rounded fruits, this walnut produces richly flavoured nuts, which are used "in natura" accompanying appetizers, in the manufacture of candies, being well accepted by the population. This paper analysed the production process of the agro industrial cooperative producers of macadamia nut (Coopmac), located in the town of Sao Mateus-ES/Brazil, and responsible for the production and marketing benefits for the states of Espirito Santo and Bahia. This analysis was performed in order to identify new opportunities for developing new products. The following steps were explored: analysis of the current procedure, ideas generation, analysis of potential ideas, development of a product concept and development of a prototype product. In cooperative, macadamia oil was only extracted. It was decided to develop a potential product from this oil. Initially, chemical analyzes were performed with this oil and opted for the production of soaps, liquid and bar. During this step, the methodology of design of experiments was used to develop the prototype. Sensory analysis, based on the LAM type hedonic scale, was used in the tests. The data were analyzed and could be distinguished the best formulation and the main effects for each assessed parameter. In this step, the statistical analysis software was used. From the value of the overall quality of the sample, greater acceptance for liquid soaps was obtained for a formulation with lower oil volume and higher volume of amphoteric. When concerning the sample bar soaps, the best formulation had the lower ratio of oil volume, the higher volume of amphoteric and lower mass of clay. The authors expect to contribute to generation of scientific and technological knowledge in order to effectively meet the practical needs of efforts directed to the production of macadamia nuts in the state of Espirito Santo. 展开更多
关键词 planning experiments sensory analysis factorial design.
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中国死亡率改善率预测及实践研究 被引量:3
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作者 何剑钢 郑宇西 《保险研究》 CSSCI 北大核心 2022年第1期79-96,共18页
本文采用1997~2019年人口死亡率数据,参考英国精算师协会、美国北美精算师协会、加拿大精算师协会三家机构搭建的死亡率改善率预测模型框架,建立适用于中国实情的死亡率改善率预测模型。研究结果表明:死亡率改善率显著,对人口平均余命... 本文采用1997~2019年人口死亡率数据,参考英国精算师协会、美国北美精算师协会、加拿大精算师协会三家机构搭建的死亡率改善率预测模型框架,建立适用于中国实情的死亡率改善率预测模型。研究结果表明:死亡率改善率显著,对人口平均余命和年金现值系数均有一定程度的正向影响。在平均余命方面,低年龄段的提高程度较为显著,0~10岁的男性平均改善为7.07岁,女性为6.32岁;年龄越高平均余命的提高程度越小;考虑死亡率改善率后,男性平均寿命从76.42岁(基于中国人身保险业经验生命表(2010~2013))升高为83.45岁,增长9.2%;女性平均寿命从81.71岁升高为87.3岁,增长6.84%。在年金现值系数方面,考虑死亡率改善率后,我国的平均年金现值系数从22.31变为23.53,增长5.47%;中高年龄段的影响程度较大,考虑死亡率改善率后60岁及以上人口的平均年金现值系数从11.66变为12.6,增长8.1%;死亡率改善率对男性年金现值系数的提高程度略大于女性。 展开更多
关键词 死亡率改善率 Lee-Carter模型 CMI(The Continuous Mortality Investigation) APCI(Age-Period-Cohort Improvement) RPEC(The Retirement Plans experience Committee)
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