排序方式： 共有4条查询结果，搜索用时 93 毫秒
1
1.
陈才智 《广东海洋大学学报》2002,22(2):63-74
北宋文化吸纳了前此数千年的历史积淀 ,而皮毛落尽 ,精神独存 ,不仅各个文化领域、各类文化形式、各种雅俗文化百花齐放 ,更以独树一帜的北宋文化精神卓然自立。苏轼的诗歌正是在北宋这一特定历史时期的文化背景下孕育成长起来的。作为中国传统文化最具典型性的“文人”代表 ,苏轼通过其二千七百余首包赡丰富、变化万状的诗作 ,展现出了一幅北宋文化绚丽多彩的历时性的“清明上河图”。尤其引起我们注意的是 ,北宋文化精神中最为突出的两个方面———议论精神和淡雅精神 ,对苏轼诗歌产生了更为直接、更为深刻的影响 ,而苏诗的议论化和崇雅尚淡倾向又更为突出、更为集中、更为典型地代表了北宋文化的议论精神和淡雅精神 相似文献
2.
W. E. Bardsley 《Mathematical Geology》1991,23(2):241-256
Many major scientific problems in the earth sciences can be expressed in terms of finding a sequence of past events which can explain an observed configuration. The configuration might be anything from distribution of continents to a particular landform pattern. Because the past is unobservable, explanations take the form of one or more subjective hypotheses for a specific configuration origin. The subjective approach allows free rein of the human scientific spirit, but the way also is open for personal bias and construction of needlessly elaborate hypotheses. As an alternative, an objective process of hypothesis generation should be achievable by way of a generalized expert system incorporating all geological environments. The generality is required in order to allow for the possibility of producing surprising hypotheses, which might not have been anticipated in the context of any specific geological environment under study. In selecting from many available hypotheses, the criterion of simplicity is a useful means by which a hypothesis subset can be created and listed. However, no guarantee exists that subset members will better approximate the truth. The rationale is rather in terms of a working rule for avoiding unnecessary complexity in explanations. Creation of a generalized expert system would be a major project involving a team effort. Such a project would have the advantage of raising the scientific profile of mathematical geology, a subdiscipline which at present has something of an image of solving little problems elegantly. 相似文献
3.
新技术日新月异的发展促进了学科交叉与融合,测绘已全面进入地球空间信息时代,由传统的数据生产型测绘升级为全领域、全范围全息地理信息服务。以“测量学”教学为核心内容的非测绘专业的本科测绘教育教学面临前所未有的机遇和挑战。测绘作为一门多学科交叉的科学技术,可视为高等教育复杂系统网络中的重要节点,在提升网络效率和网络特性方面具有独有的优势。基于此,本文首先以复杂系统的联通本体视角,提出了非测绘专业的测绘教育在相关学科教学改革中具有重要影响,从非测绘专业的测绘教育教学出发讨论适应新时代的教育教学改革,有理论基础和现实意义,其实践层面的落点为学科交叉、融合与创新。然后,结合清华大学非测绘专业“测量学”教学实践,初步讨论复杂系统的简单性原则在教学中的适用性,提出具体的教育教学改革措施。 相似文献
4.
James C.I. Dooge 《Surveys in Geophysics》1997,18(5):511-534
The use of simplification as a route to scientific insight is reviewed with examples from hydrology and analogies from other sciences. The discussion covers a number of types of simplification: (a) simplification of the governing equations; (b) reduction of the state space, i.e. the number of dependent variables; (c) reduction of the solution space, i.e. the number of independent variables; (d) reduction of the parameter space, e.g. by freezing a slowly varying parameter; (e) simplification of the driving function e.g. Fourier analysis. The importance of scale is stressed and the possibility of apparent paradoxes between differing scales is noted. The complementary nature of deterministic and stochastic approaches is also discussed. 相似文献
1