泰勒公式在用等价无穷小量替换求极限中的应用

用等价无穷小量替换求极限是一种常用、方便、有效的方法.但寻求等价无穷小量并非易事.本文主要探讨用泰勒公式寻求等价无穷小量及用等价无穷小替换求极限的方法.     

On the Western Conception of Natural Law

Natural law is an important concept of the Western political culture. The author makes a simple investigation into the various definitions of natural law, based on which he comes to the conclusion that natural law is a key concept of Western political culture; that it is a moral norm of politics as well as a product of rational thinking; and that its meaning has varied over time.     

可持续发展与中国环境基本法的创新

中国环境基本法的创新是可持续发展对中国环境法提出的重要命题。完善中国环境基本法应有七个目标领域,即环境保护立法目的和基本原则、环境保护基本对策、环境保护管理体制(机构、职能和协调)、环境污染防治和监督管理、自然资源合理开发和利用、资源生态保护与监督管理和生态(系统和特殊区域)保护等。中国环境基本法的创新对完善中国环境与资源法制具有启示意义和作用。     

Teaching Undergraduate Mathematics on the Internet

This is Part 2 of a two-part study of how APOS theory may be used to provide cognitive explanations of how students and mathematicians might think about the concept of infinity. We discuss infinite processes, describe how the mental mechanisms of interiorization and encapsulation can be used to conceive of an infinite process as a completed totality, explain the relationship between infinite processes and the objects that may result from them, and apply our analyses to certain mathematical issues related to infinity.     

浅论国家自然科学基金项目申报质量控制

随着国家对基础研究支持力度的不断增强,国家自然科学基金项目申报的数量也不断增加,对申报质量的要求也不断提高.以华南农业大学为例,提出了加强国家自然科学基金项目申报的过程管理、提高申报质量的途径和对策,以期为高校科研管理部门提供参考和借鉴.     

长江下游三省—市农业自然资源利用方向和发展对策

沪、苏、浙、皖三省一市,处于长江下游平原水网地区。并有丘陵、低山分布,属暖温带和北、中亚热带气候区,濒临黄海、东海,每年为国家提供大量农产品。要利用上海浦东开发、沿海、沿江城市开放的有利条件,通过改造中低产田,利用零星荒地,开发滩涂、水面,以高产、优质、高效农业为目标,加速发展优质稻、小麦、蚕丝、棉花、瘦肉型猪、水禽、海水鱼、对虾、茶叶、特种水果等农产品,满足国内人民需要,并增加外汇收入。     

对奈达翻译理论演变及启示的研究

美国翻译理论之父尤金.奈达所提出的"动态对等"、"功能对等"、"读者反应"论以及"语言共性"论等翻译理论和原则不仅丰富了我国翻译理论,而且对翻译实践也起到了很好的指导作用。然而,随着时间的推移,尤其是进入新世纪以来,奈达的翻译理论遭到强烈的批判,甚至被认为已经过时或者毫无用处。本文主要通过对奈达翻译理论演变的深入分析及其留给我们启示的研究,使大家对奈达的翻译理论有更加科学的认识和评价。     

河南省永夏煤田煤及天然焦资源的综合研究

天然焦作为一种新的绿色替代能源日益受到重视.探讨了永夏煤田的成矿地质特征,岩浆侵入对煤层的影响,煤和天然焦的物理化学特征.结果表明,用煤田地质和物探、钻探综合方法能够准确、快速的划分煤和天然焦.对于准确、快速计算煤和天然焦的地质储量、节约工程经费、节约工期、进一步详细勘探、井田设计等都具有一定的现实意义.     

文学景观研究

文学景观是指那些与文学密切相关的景观,比普通的景观多一层文学色彩,多一份文学内涵。一个景观之所以能够成为文化景观,除了它的自然属性,还有人文属性;一个文化景观之所以能够成为文学景观,在于除了它的人文属性,还有文学属性。文学景观就其源头来讲,可以分为两种,一种是虚拟性文学景观,一种是实体性文学景观。文学景观不仅具有丰厚的经济价值,而且饱含丰厚的思想内涵,人们游览文学景观所得到的人生感悟,比读那些枯燥的历史著作来得更真实、更丰富、更深刻。     

On Equivalence of Public Sign Translation from the Perspective of the Relevance Theory

At present,with the development of the city culture and globalization,bilingual signs are more widely used in the society.Among the public sign translations,there are many successful examples.But,at the same time,many problems such as mistranslation and poor translation widely exist in the process of promotion of city culture.The relevance theory interprets translation from the original author’s and translator’s cognitive surroundings,thus bringing a new approach for translation,especially for applied text translation.Based on the previous study,the author analyzes the equivalent effect of sign translation from the perspective of the relevance theory and summarizes some principles and strategies for public sign translation,in hope of helping the promotion of the city image and culture.