电子商务教学中应注重联系生活培养学生能力

本文主要介绍在电子商务教学过程中如何使教学更贴近生活实际,培养学生解决实际问题和学习的能力。知识经济是创新型经济,教育自身要有创新型观念的运作方式,培养有知识、有创新技术和攻坚能力的人才,以及这些人才渴望知识、终生学习的意识。     

云南水电开发与生态环境保护

云南要把握好我国“西部大开发战略”的极好机遇 ,应发挥云南的水电优势 ,才能保护好生态环境 ,达到和满足云南“可持续发展战略”要求     

板材成形新技术及其发展趋势(Ⅱ)

介绍了多点成形技术、激光成形技术、冲压智能化技术、成形过程的计算机仿真技术等几种柔性化程度高的板材成形新技术及其发展趋势     

我国餐饮废水处理技术研究进展

综合论述了我国餐饮废水的特点及处理现状,介绍了SBR法、生物接触氧化法、厌氧-好氧联合工艺法、膜生物反应器法、混凝法、电化学法处理餐饮废水的技术及适用条件.比较了各种处理技术的优势和不足,预测了我国餐饮废水处理的发展趋势.并认为,集除油、降解有机悬浮物于一体的餐饮废水一体化处理设备将会得到广泛应用,而针对餐饮废水特点培养出高效生物菌种的复合生物技术将是治理餐饮废水的最有效方法.     

Analysis of relationship between economic growth and environment in Benxi Shiqiaozi Development Zone

ＡｎａｌｙｓｉｓｏｆｒｅｌａｔｉｏｎｓｈｉｐｂｅｔｗｅｅｎｅｃｏｎｏｍｉｃｇｒｏｗｔｈａｎｄｅｎｖｉｒｏｎｍｅｎｔｉｎＢｅｎｘｉＳｈｉｑｉａｏｚｉＤｅｖｅｌｏｐｍｅｎｔＺｏｎｅ￥ＬｉＢｉｎ；ＲｕＪｉａｎｇ；ＹｅＷｅｎｈｕ；ＸｕＹｕｎｌｉｎ（Ｃｅｎｔｅ...     

Normal development in two six-year-old boys born after prenatal diagnosis of trisomy 20 mosaicism

Prenatal diagnosis of trisomy 20 mosaicism was made in two pregnancies by chromosome analysis of cultured amniotic fluid cells. In both cases, the pregnancy continued to term and a healthy male infant was delivered. Regular assessments up to the age of 6-5 years revealed normal physical and intellectual development in both children.     

依靠科技进步,促进环保事业深入发展

回顾了从１９７３年至今的２０年中，上海市环保科技工作的成绩：取得了丰硕的科研成果：汇集了雄厚的科技力量：科研装备水平逐步迈向现代化；形成了环保科技信息网络：对外合作取得了显著成绩，进一步明确了环保科技工作的指导思想：以“科学技术是第一生产力”的观点认识环境，管理环境，建设环境；从把上海建成人与自然和谐的国际级城市的高度，发展环保科技工作，贯彻可持续发展的战略于环保科技工作的全过程；以深化改革促进环     

重庆三峡库区农林复合经营可持续发展研究

提出重庆三峡库区实施农林复合经营的重要性及其可持续发展理论和结构类型，并针对存在的问题，提出农林复合经营可持续发展对策。     

Environmental principles applicable to supply chains design and operation

In this paper we deal with the problem of identifying environmental principles for the design and operation of supply chains. The operations that are included in supply chains are briefly described along with the approaches that are applied in order to improve their environmental performance. A background of environmental principles for achieving eco-efficiency and building of environmentally friendly organizational systems is presented and emphasis is put on the application of such principles “from cradle to grave”. Then, environmental principles applicable to particular objects of logistics networks planning are identified and commented upon. In addition, selective case studies from the literature, which show the applicability of the formulated principles and their relevance to practice, are discussed. The paper concludes with some remarks regarding the benefits for companies and societies, in general, that occur as a result of the application of the formulated principles.     

Influence of new town development on the urban heat island - The case of the Bundang area

Five new towns have been developed around the Seoul metropolitan area since 1996. However, these new towns generate lots of traffic and related problems in the areas including those new towns and Seoul as a result of increases in population and a lack of ecological-self-sufficiency. Currently, construction of another new town is under deliberation, and what should be a major consider is the notion that the new town be located within a wide, green zone. Many studies have revealed that green space can play an important role in improving urban eco-meteorological capability and air quality. In order to analyze the urban heat island which will be created by the new urban development, and to investigate the local thermal environment and its negative effects caused by a change of land use type and urbanization, Landsat TM images were used for extraction of urban surface temperature according to changes of land use over the last 15 years. These data are analyzed together with digital land use and topographic information. As a study result, it was found the urban heat island of the study area from 198.5 to 1999 rapidly developed which showed a difference of mean temperature above 2.0. Before the Bundang new town construction the temperature of the residential area was the same as a forest, but during the new town construction in 1991 analysis revealed the creation of an urban heat island. The temperature of a forest whose size is over 50% of the investigation area was lowest, and thus the presence of a forest is believed to have a direct cooling effect on the urban environment and its surroundings. The mean temperature of the residential and commercial areas in the study was found to be 4.5 higher than the forest, and therefore this part of land use is believed to be the main factor causing the temperature increase of the urban heat island.