Minimal Tetrahedralizations of a Class of Polyhedra

Given a simple polyhedron P in the three dimensional Euclidean space, different tetrahedralizations of P may contain different numbers of tetrahedra. The minimal tetrahedralization is a tetrahedralization with the minimum number of tetrahedra. In this paper, we present some properties of the graph of polyhedra. Then we identify a class of polyhedra and show that this kind of polyhedra can be minimally tetrahedralized in O(n ²) time.     

西方文论研究与翻译视野

近期,国内的西方文论研究开始出现反思趋势,西方文论本身也成为反思对象之一。反思过程中出现了对西方文论的一些误读,原因之一在于部分研究者可能忽略了自身研究奠基于译文之上的事实,将译文直接等同于原文,因而也可以说是翻译视野的缺失。在西方文论研究中引入翻译视野,即意味着基于译本进行的文论研究须与译本拉开一定的距离。翻译视野又包括转换意识、语境意识、差异意识三重内涵。转换意识即意识到译文是语言转换的结果,同时意识到由转换所导致的信息不对称性;语境意识是指意识到西方文论扎根的特定时空的文化形态及理论家的认知形态;差异意识是指对原作与译作所处时空差异的意识。翻译视野促使我们主动去了解西方文论在原语语境中的起源及发展,辩证地探讨其在译语语境中的适用性,有助于我们在西方文论译介热持续上升的今天,真正深入地理解与反思西方文论的内涵,更好地吸取其精华,批判其糟粕,推动中国文学与文化研究的发展,建构中国自己的理论体系。     

汉语谐音及其语篇衔接作用

首先扼要说明谐音的特征和属性;然后通过多角度分类对汉语谐音作了立体观照;继而在"独用型谐音"(不与其他辞格结合为用的)和"兼用型谐音"(与其他辞格结合为用的)分类基础上,全面考察了汉语谐音的语篇衔接作用;最后就谐音研究中本体与谐体的鉴别、谐音衔接在衔接系统中的站位、汉语谐音对于语篇衔接和话语组织的影响、汉语谐音与汉语及汉文化的关系,作了较为深入的理论探讨.     

论高校思想政治理论课实践教学的整合

"05方案"后,高校思想政治理论课实践教学取得了丰硕成果,但是四门思想政治理论课实践学时的分散性,导致实践教学在具体操作中存在诸多困难。为充分发挥实践教学的功效,应当对四门思想政治理论课的实践教学进行总体整合与具体设计。整合后的实践教学,实现了教学过程的优化,体现了现代教学理念,有利于采用现代教育技术。     

Adaptive modeling of the human-environment relationship applied to estimation of the population carrying capacity in an earthquake zone

Natural catastrophes such as earthquakes can, in addition to causing loss of life, disrupt the urbanization process through the need for forced population redistribution and the modification of resource and environmental carrying capacity. The population carrying capacity (PCC) of an altered environment following an earthquake is a crucial determinant in the relocation of displaced persons. We use data adaptive methods to model the correlation between the physical environment and human population density in estimating PCC in areas affected by the 2008 Wenchuan earthquake. Comparing actual population distributions with ideal population distributions allows for the identification of villages where population exceeds PCC, or conversely, areas where the environment can support a higher population. Such a comparison can provide the basis for a relocation plan, a critical element of post-catastrophe policy-making.     

论群体传播时代的莅临

一个"人人都能发声,传播无处不在"的群体传播时代已经到来。产能过剩是群体传播时代的基本经济特征,也是其兴起的社会土壤。互联网为群体传播提供了无时不在的"物理空间"。群体传播在一定程度上消解了大众传播的意义传递和媒介垄断,又为个体、群体、企业和机构参与传播竞争,提供了机会和平台。大众传播、组织传播与群体传播,既存博弈又有合作,只有相互借力才能共赢。在网络推广、文化营销中,充分利用群体传播能够实现"四两拨千斤"的效果。值得注意的是,微博等群体传播与人际传播的交织,却是谣言产生影响力的根源。     

从想象、走进到反思:人类学视野下的“边缘”研究谱系

人类学视野下的"边缘"不仅是与"中心"相对的空间范畴,也是一种反思殖民主义、后殖民主义、西方霸权、现代性以及全球化的话语和研究范式。在从想象、走进到反思的演变过程中,"边缘"研究经历了从宏观到微观、从猜测到实证、从西方中心主义到多元化、从全球化到本土化的转换。     

空气中多种醛酮液相色谱法侧定的研究

本文研究了空气中多种醛酮的测定。目前国内仅对空气中甲醛的测定研究较多,国外报导的方法需用萃取、浓缩等一系列前处理过程,方法麻烦,易引入杂质造成污染。本文报导的方法系采用2.4—二硝基苯肼的甲醇强酸溶液吸收空气中醛酮直接注入液相色谱仪中进行分离测定。研究表明:本法分离效果好,重复性好,方法简便,速度快,测定的精密度和准确度符合微量分析误差的要求。     

Acceptance of automation manufacturing technology in China: an examination of perceived norm and organizational efficacy

Abstract

With a shift to more automation technology, social acceptance of technology plays an important role in the manufacturing sector. To what extent this occurs, and affects the adoption of technology, has been less researched, but is important in deciding how such technology is introduced, and the nature of the shift from labour-intensive manufacturing to automation. This research applies the revised technology acceptance model (TAM) to examine the impact of social and individual antecedents on the acceptance of automation manufacturing technology. Survey data are collected from 258 Chinese manufacturers. Results suggest that perceived norms significantly affect organizational intention to use automation manufacturing technology both directly and via perceived usefulness; organizational efficacy explains the intention to use via mediating effect of perceived usefulness and perceived ease of use. This research is one of the first extending and applying TAM from individuals to organizations.