浅析以微博为代表的信息传播碎片化——以“新浪微博”为例

这是一个信息传播碎片化的时代,微博是这个时代的产物,它的盛行集中体现了信息碎片化传播的特点,本文借助微博这一传播工具,试从信息传播碎片化表现及产生原因入手,分析信息传播的碎片化中可能遇到的问题,并提出解决办法     

微博对传统传媒生态的改变

伴随着美国twitter的全球性蔓延和影响,中国先后兴起了一大批微博网站。微博及时、交互的消息传播速度和广度都为传统媒体所不及。它不仅成为媒体重要的新闻线索来源地,而且还引起受众信息表达和消费习惯的演变、传媒操作模式的转变、新闻价值判断的后置,新闻发布渠道的多元等,从而将导致媒体概念与传媒生态的重塑。     

从广告谈媒介文化对当代的影响

广告作为媒介的典型代表,极大的影响了当代人们的生活方式和思维模式.本文旨在探讨以广告为代表的当代媒介对日常生活的影响.     

微博两会冷暖自知——辩证看待微博问政的利弊

当前,两会越来越的多通过微博与群众互动探讨舆论热点,将其作为政策制定的参考依据.微博问政在推进民主化进程、有效传达民意上的天然优势已毋庸置疑,而网络本身的弱点给网络问政带来的议题设置利益倾斜、某种程度的非理性等弊端也需要我们辩证看待,本文对微博问政进行利弊辩证分析,使我们对这个新生事物有个全面的、客观的认识.     

《环境学》精品课程的建设与教学实践

《环境学》是高等学校环境科学、环境工程专业的主干课程。本文主要探讨了《环境学》精品课程在建设中涉及到的课程指导思想及定位、课程建设的主要内容包括教学内容、教学方法、教学手段及课程特色等相关内容,并就其进行了系统地分析。     

媒介研究的新视野——以美剧Gossip girl为例

Gossip girl是近期风靡全球的美剧之一,讲述了纽约上东区富家子弟们的生活,现代化的传播媒介是Gossip girl获得成功的关键所在,本文从第四媒介网络和第五媒介手机两个层面来分析美剧在新时期媒介传播的特点,并借以对我国电视剧制作的发展有所裨益。     

手机媒介互动性对大学生人际关系维护的效用分析

大学生处于渴望交往与被理解的心理发展时期,良好的人际关系是其心理正常发展、保持个性健康和安全感、归属感、幸福感的必然要求,依托情感、信息、物质、社交的互动成为其维护人际关系的重要条件.手机媒介以其快捷、便携、互动等众多优势,成为当代大学生人际关系维护的有效工具.为此,基于手机媒介互动性的分析,结合当代大学生人际交往的特质,探索性地分析了手机媒介的互动性对其人际关系维护起到的正效用和负效用.     

我国媒介融合的内外动因解析

融合是当前媒介发展进程中的一个显著特征。为更好地认识媒介融合的现象,把握媒介融合的规律,从科技发展的历史和媒介发展的现实两个维度考察我国媒介融合现象,可以看到,媒介生态环境及媒介形态环境革命性、指向性变化是促进媒介融合的内在动因,媒介产业的发展是媒介趋向融合的外部力量。现实语境中,探析媒介融合的内外动因,有利于了解新闻传播方式、媒介内容生产方式的变化过程,推进媒介进一步融合,促进传媒业的整体发展;同时也能给当前媒体从业人员提供重要的启示,为我国新闻业界和学界变革提供重要的现实依据。     

微博——新闻自由和微阅读时代的到来

2009年,微博客开始风靡于中国网络,并随着微博客的流行,手机微博也逐渐形成一股新的势力,迅速渗透到大众的具体生活中.本文首先从传播语言、传播工具、裂变式传播方式和革根化传播者四个方面详细分析了微博的特别,然后阐述了微博在新闻传播领域、文学领域、政治领域、经济领域的价值和意义.     

提高大学生媒介素养的措施探析

在市场经济时代,大众传媒是我国大学生接受信息的主要途径,如何认识媒介,正确而有效地利用大众传媒是大学生媒介素养教育的目的.本文通过调查分析大学生媒介使用存在的问题,借鉴国外媒介素养成功的经验,提出大学生媒介素养教育的最佳过程即高校的媒介素养教育课程和自我教育.本文希望以此能引起我国对媒介素养教肓的重视,并以期能成为地方高校实施大学生媒介素养教育提供有益参考.     

基于景观生态学的生态旅游规划——以长白山自然保护区为例

研究基于对景观规划,景观生态规划,生态旅游规划相关概念的理解,结合对长白山自然保护区景观类型、组合形式、发展潜力等方面的分析,从旅游斑、旅游廊、旅游基等方面出发,全面考虑了景观与生态建设的关系,以营造宜人的景观,实现区域可持续发展.     

媒介与符号——数字媒体艺术理论探索

数字媒体艺术作为一个快速发展的交叉学科和艺术创新领域,近年来在学术界和教育界引起了广泛关注.从媒介发展的宏观角度探索了数字媒体艺术作为"媒介艺术"延伸的演化历程.借鉴媒体考古学、媒体演化史和麦克卢汉、鲍德里亚等人的观点,认为媒介理论和符号学应该是理解和构建数字媒体艺术理论的钥匙.在此基础上结合逻辑分类与信息视觉化的方法,提出了一个数字媒体艺术作为媒介产品的学科框架与应用领域的模型.同时指出,将语言学、符号学理论引入数字媒体艺术研究不仅有利于明确该学科在科学知识体系中的地位,而且对于该专业的人才培养具有重要意义.     

基于自然生态观的山地公园建筑规划设计

从山地公园建筑的类型和特点出发,总结了自然生态观的发展历程、内容及对建筑规划的启示,并以此为前提提出了影响山地建筑的5个影响因子,即地质、地形、气候、水文、植被.最后从生态设计、视觉设计、情感设计的角度说明了山地公园建筑规划设计的要点,为山地公园的建筑规划理论研究提供依据.     

Numerical Analysis of Geomaterials within Theory of Porous Media

It is widely accepted that the mechanical behavior of saturated geomaterials is largely governed by the interaction of the solid skeleton with the fluids present in the pore structure. This interaction is particularly strong in quasi-static and dynamic problems and may lead to the catastrophic loss of strength known as liquefaction, which frequently occurs under earthquake loading. In this work, numerical simulations of saturated granular deposits under transient loads are presented to illustrate the performance of a u-p-U finite-element method formulation and the versatility of the numerical implementation. Closed-form solutions based on both a Biot formulation and modern theories of mixtures are compared with numerical results. In addition, centrifuge experimental results are correlated with numerical simulations. A companion paper presents the details of the theoretical formulation and the numerical implementation within the finite-element method.     

Damage Theory Based on Composite Mechanics

A new theory of composite damage mechanics is developed. A material with damage is considered as a composite comprised of two different phases (called matrix and inclusion). Both phases are linearly elastic isotropic materials. The matrix is considered as the intact material, and the inclusion is the damaged material. Three different composite models, Voigt (parallel), Reuss (serial), and generalized self-consistent (spherical), are introduced for three types of damage distributions. These composite models are usually used for initial tangential modulus of a composite material, here we use them for secant modulus of a distressed material. Since the parallel and the serial models represent the upper and lower bounds for stiffness of materials, the composite damage theory obtains the upper and lower bounds for postpeak stress and the level of damage for the material beyond the elastic limit. The spherical model is in between the two bounds. Depending on the “elastic limit” of the inclusion, the theory can be used to describe elastic perfectly plastic behavior, strain hardening, and strain softening. Two different degradations, the linear and exponential degradations of the stress–strain response curve are introduced. The two degradation models are used in two different failure surfaces, i.e., Tresca and Mohr–Coulomb failure surfaces, to predict the postpeak behavior of distressed material.     

Assessing the Relevance of Media Synchronicity Theory to the Use of Communication Media in the AECO Industry

Recent developments in technology, such as building information models (BIMs), immersive displays, and mobile computing tools, have enabled changes in the means and locations of communication throughout the building architecture, engineering, construction, and operation (AECO) industry. This paper presents the findings from an exploratory study regarding the planning of physical media for effective communication in conjunction with the developments in BIM use. While literature shows that there has been noticeable impact of physical media on communication, there has been little evidence of consistent and thorough planning and evaluation of media for investment or project level planning. The exploratory study identifies media synchronicity theory as a starting point for identifying the media needs by task for more effective planning of communication, as well as potential considerations unique to the AECO industry. The paper concludes with studies which have begun for planning more specific applications for BIM and media within AECO.     

Numerical Studies on Bit-Rock Fragmentation Mechanisms

The rock fragmentation process induced by a single button-bit, two neighboring button-bits, and multiple button-bits are numerically studied using the rock and tool interaction code (R-T2D). Through this study, a better understanding of the bit-rock fragmentation mechanisms is gained. It is found that side crack is initiated from the crushed zone or bifurcated from Hertzian crack to propagate approximately parallel to the free rock surface but in a curvilinear path driven by the tensile stress associated with the expansion of the crushed zone during the loading process. In the crushed zone, the mechanism of side crack is mixed tensile and shear failure, but outside the crushed zone, the dominant mechanism of side crack is tensile failure. A semiempirical and semitheoretical relationship among the side crack length, the drilled rock property, and the drilling force is formulated to approximately predict the side crack length. In the simultaneous loading, the interaction and coalescence of side cracks induced by the neighboring button-bits with an optimum line spacing enable formation of largest rock chips, control of the direction of subsurface cracks and a minimum total specific energy consumption. A formula is derived to determine the optimum line spacing on the basis of the drilled rock properties, the diameter and shape of the button-bit, and the drilling conditions. In the rock fragmentation by multiple button-bits, most of the rock between the neighboring button-bits is chipped as a result of the coalescence of side cracks. In the remaining rock, the intensely crushed zones and significant extensional cracks are observed adjacent to the sidewall and the inside of the borehole. Fragment side distribution shows more than 80% of the fragments are fines in the crushed zones as well as the cracked zones, the large fragments be indeed observed, which are the big chips caused by the coalescence of side cracks.     

基于数据重心理论进行钢材需求预测

研究提出数据重心的概念,得到数据重心的若干性质,并将其运用于钢材预测模型参数估计,改进了传统的预测法、提高了预测稳健度,对2005年、2010年的钢材需求量进行点预测,进一步提出了基于数据重心理论的置信区间预测,以带置信度(95％)在没有意外的情况下预测2005年、2010年钢材需求量的置信上下限。     

从景观生态学探讨山地公园植物群落景观格局的优化

山地公园的景观格局因其独特的地形环境及植物群落与其他公园生态系统的差距巨大.笔者在分析了影响山地公园植物群落格局的因素之后,借助景观生态学原理找出优化山地公园植物群落景观格局的方法,旨在通过遵循地形和自然生境,合理配植植物群落,营造和谐的植物群落空间结构,最终达到增强植物群落视觉效果,优化山地公园植物群落景观格局的目的.