| 41. |
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| 42. |
- Deng, Qihong, et al.
(författare)
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Source Apportionment and Chemical composition of particulate matter (PM10) in university classrooms
- 2009
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Ingår i: Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology). - 1672-7207. ; 40:2, s. 332-328
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Tidskriftsartikel (refereegranskat)abstract
- The inhalable particulate matter (PM10) was continuously monitored and sampled in the classrooms of Central South University at Changsha by Tapered Element Oscillating Microbalance 1400a (TEOM 1400a) from September to December, 2007. The chemical compositions of the PM10 samples were analyzed by the X-ray fluorescence (XRF), and then the source apportionment of the classroom particles was investigated by the principal component analysis (PCA). The results show that the mean PM10 concentration in classrooms is (176.56±57.63)
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| 43. |
- Di, Jing, et al.
(författare)
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A novel composite electrolyte based on CeO2 for low temperature solid oxide fuel cells
- 2008
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Ingår i: Journal of Inorganic Materials. - 1000-324X. ; 23:3, s. 573-577
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Tidskriftsartikel (refereegranskat)abstract
- A novel composite material based on mixture of samarium-doped ceria (SDC)-carbonate was studied as electrolyte in low temperature solid oxide fuel cells. The phase and microstructures of composite electrolyte were examined by XRD and SEM. The electrical conductivity was investigated by AC impedance spectroscopy at 400-700 degrees C in different atmospheres. An abrupt change in the conductivity at about 500 degrees C indicates that different mechanisms affect transfer in different temperature ranges. The conductivity increases with the carbonate fraction above 500 degrees C. The conductivity in reduce atmosphere is higher than that in oxide atmosphere. An anode-supported fuel cell using SDC-carbonate as electrolyte was fabricated and tested. The result shows that all the composite electrolytes exhibit better performance than pure SDC electrolyte. The electrolyte with 20wt% carbonate can achieve the highest power density of 415mW center dot cm(-2) and an open circuit voltage of 1.00V at 500 degrees C.
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| 44. |
- Ding, Hanqing, et al.
(författare)
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国内电视剧版权价格影响因素与影响机制研究
- 2016
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Ingår i: 传媒经济与管理研究. - Nanjing. ; , s. 85-104
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Tidskriftsartikel (refereegranskat)abstract
- 本研究以2006至2014年间新闻媒体公开披露的69部国内电视剧的95条交易记录为例,采用内容分析法,通过相关分析与建构结构方程模型，探究市场因素与电视剧版权价格间的关系，以及显著相关的市场因素对电视剧版权价格的影响机制。研究发现，在根据文献所梳理的诸多市场因素中，"授权平台"、"播出方式"、"权利性质"、"电视剧年产量"等因素与电视剧版权价格具有一定的相关性；影响效果由高到低的路径分别为：授权平台→版权价格、电视剧年产量→版权价格，且均为直接效应主导。
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| 45. |
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| 46. |
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| 47. |
- Dodig Crnkovic, Gordana, 1955
(författare)
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高丹娜·多迪格—克恩科维奇.智能社会的计算信息:决策的信息—计算进路[J].王健,译.重庆邮电大学学报(社会科学 版) - Computing Information for Intelligent Society: Info-Computational Approach to Decision Making
- 2022
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Ingår i: Journal of Chongqing University (Social Science). The Proceeding of Xi'an Senior Forum. ; 34, s. 62-67
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Tidskriftsartikel (refereegranskat)abstract
- With the powerful development of pervasive information-based technology, especially intelligent computing, the question arises: How do we imagine a future highly developed and humane (human-centered) intelligent information society? The answer will of course vary depending on time perspective. In a shorter-time perspective, we can try to anticipate based on the existing trends in the development. The first step is to understand the current state of the art of intelligent technology uses towards intelligent society. A longer-term perspective is more uncertain, as new intelligent technologies, especially in combination with biotechnologies and human augmentation and enhancement will be changing both the ways of being human as well as the structures and behaviors of human societies, as argued by (Wu & Da, 2020) under the heading “The Impact of Intelligent Society on Human Essence and the New Evolution of Humans”. Wu and Da anticipate that the development of widely used AI technologies will lead to the evolution of the “human essence” that will lead to the convergence between social and biological evolution. That is a radically optimistic view that declares equality between the increase in human freedom with the disappearance of the necessity of regular human labor as a means to assure physical existence. In the future intelligent automated society, machines will secure the material basis of existence for everybody. It will remain to humans how to meaningfully use this newly conquered space of freedom.
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| 48. |
- Engström, Arne, 1953-, et al.
(författare)
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Problems and Improvement of the Formulations of Mathematics Teaching Objectives : An Example from the Three Dimensional Mathematics Teaching Objectives in Junior High School
- 2014
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Ingår i: Journal of Mathematics Education. - Tianjin : Tianjin Normal University. - 1004-9894. ; 23:5, s. 23-26
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Tidskriftsartikel (refereegranskat)abstract
- On the basis of the theory of teaching objectives and the practice of mathematics teaching objectives formulating, we established a framework for analyzing mathematical teaching objectives. Based on this analytical framework, we analyzed the teaching mathematics objectives that formulated by junior school mathematics teachers from the whole structure and the specific formulations, and found some problems about formulations of mathematics teaching objectives. Finally we introduced the basic process and gave some examples about improving the quality of mathematics teqaching objectives.
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| 49. |
- Ervo, Laura, 1966-
(författare)
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《北欧国家民事诉讼新变革》
- 2015
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Ingår i: 《法律与社会》2015年第5期，总第171期，第31-37页。. - : China: Law & Society. ; 171:05, s. 31-37
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Tidskriftsartikel (refereegranskat)
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| 50. |
- Fan, Y., et al.
(författare)
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Mechanical preparation of nano titanium dioxide powder and its optical properties
- 2007
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Ingår i: Journal of the Chinese Ceramic Society. - 0454-5648. ; 35:7, s. 832-837
-
Tidskriftsartikel (refereegranskat)abstract
- mechanical preparation of the nano-sized particles of TiO2 powder by a stirred bead mill was investigated. The particle sizes of the ground products were determined by the acoustic particle sizer, the nitrogen gas adsorption method and a scanning electron microscopy. The diameter of the nano-sized particles, which were obtained after milling for 7 h, is about 50 nm and the specific surface area is up to 70 m2/g. The surface and structure of the samples have been investigated with X-ray diffraction. It is indicated that an intense comminution in the mill leads to a progressive loss in crystallinity of TiO2. The catalytic degradation of methyl orange in water was also studied by a photometer. The results show that the nano-sized particles of TiO2 powder prepared by milling possess photocatalysis effect and are capable of absorption of ultraviolet radiation
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