论城市竞争力中的文化产业因素

目前,文化产业越来越成为影响城市竞争力的关键因素。信息产业是知识经济初级阶段的主要智力产业形态,而文化产业是知识经济高级阶段的主要智力形态。美国许多城市的兴衰过程、当局振兴城市的经验措施以及我国一些城市竞争力的变化证明:文化是城市的软件,是软国力,而文化产业则是城市的硬件,是硬国力;未来城市竞争力日益取决于文化产业的发展。以市场化为文化大产业的突破口,注重借鉴和吸取西方发达国家在这方面的经验和教训,化解负面效应,加快改革步伐,变拨款为投资基金,变扶持文化单位为扶持文化项目,力推文化产品出口创汇等是提升城市竞争力当务之急。     

黄化型大麦的系列研究 Ⅲ南黄大麦生长发育的调查

本文系统地报道了南黄大麦与原品种早熟3号在生育期、植株高度、叶片长宽、分蘖数以及穗部性状等方面的比较.指出南黄大麦除出土时间,倒二叶的长宽与早熟3号基本一致,剑叶长宽略大于早熟3号外,其余性状差异显著.植株矮小,生长发育缓慢,这与黄化型大麦叶色浅,叶绿体的片层结构不发达,光合机能弱,光合产物少有关.     

随迁子女的心理健康研究述评

阐述随迁子女的概念,随迁子女心理健康的现状及存在的问题,探讨随迁子女心理健康状况的个体差异,指出已有研究的局限与不足,并对未来随迁子女心理健康研究进行展望。     

企业竞争优势的内涵及其培养

企业竞争优势实质上是一种比对手强的相对实力,它直接表现为使企业获取超出行业平均水平的利润.但是,能够获利并不意味着企业具有竞争优势,企业的竞争优势主要来自于外部适应性和内部创新两个方面.为了保证竞争优势的持续性,企业必须永葆创新精神,并有效地防止对手的模仿,必要的时候还应该采取措施,加大对手的经营难度.     

‘It's not acceptable for the husband to stay at home': Taking a discourse analytical approach to capture the gendering of work

This article illustrates some of the ways in which the notion of (paid) work is actively being gendered, and how these gendering processes take place not only through organizational practices but also in discourses that circulate outside an organization in the private domain. Drawing on 15 in‐depth interviews with women who opted out of their own professional career in order to accompany their husbands on their overseas work assignment to Hong Kong, we demonstrate some of the benefits of using a discourse analytical approach to capturing and identifying the processes through which these women actively (although not necessarily consciously) gender the notion of work, thereby reinforcing the gender order and its male bias. We argue that identifying and making visible these gendered and gendering practices is an important component of, and a potential trigger for, change both in organizations as well as private contexts.     

小波变换图像压码延拓匹配与变换系数研究

研究了延拓匹配,证明了小波变换图像压码中采用Ｄａｕｂ滤波器时,周期延拓比对称延拓在结构上能更好地对滤波器进行匹配;对小波变换域样本场的统计特性和游程概率进行了分析,并在此基础上实现了高压缩比和高信噪比的图像压缩。     

Edge Estimation in the Population of a Binary Tree Using Node-Sampling

Suppose a finite population of several vertices, each connected to single or multiple edges. This constitutes a structure of graphical population of vertices and edges. As a special case, the graphical population like a binary tree having only two child vertices associated to parent vertex is taken into consideration. The entire binary tree is divided into two sub-graphs such as a group of left-nodes and a group of right-nodes. This paper takes into account a mixture of graph structured and population sampling theory together and presents a methodology for mean-edge-length estimation of left sub-graph using right edge sub-graph as an auxiliary source of information. A node-sampling procedure is developed for this purpose and a class of estimators is proposed containing several good estimators. Mathematical conditions for minimum bias and optimum mean squared error of the class are derived and theoretical results are numerically supported with a test of 99% confidence intervals. It is shown that suggested class has a sub-class of optimum estimators, and sample-based estimates are closer to the true value of the population parameter.     

合芜蚌文化创意产业集群发展机制——基于极化效应视角的分析

安徽合芜蚌地区,依赖其文化创意核心竞争优势,产生五大文化创意产业,并在极化效应持续作用下,形成文化创意产业集群。合芜蚌文化创意产业集群,虽已初具一定产业规模,但通过研究该产业集群形成机制,不难发现其发展瓶颈问题仍较为突出,因而,应从增强极化引力方面入手,突破该产业集群发展瓶颈,努力提升该产业集群发展水平。     

两类广义字典积S_n[h_n]的点可区别边染色

研究了广义字典积G[h n]中G为n(n≥3)阶星Sn且与Sn最大度顶点对应的Hn-1分别为空图和完全图时的点可区别边染色.利用构造边染色的方法,得到了这两类广义字典积图的点可区别边色数.     

汽轮机中压缸气动设计中的损失分析

运用计算流体力学(CFD)方法对300 MW汽轮机中压缸的3种反动式改型方案的内部流场进行了数值模拟.根据计算结果分析了不同方案下的流动特性和参数变化,给出了多级效率,并分析了引起级内损失的原因.计算结果表明,反动式与冲动式两种设计方法得到的叶片效率相近;而后部加载叶型能有效抑制二次流,从而降低叶栅损失;叶片的前缘直径及弯曲角度对流场中涡结构有明显的影响.