竞技武术套路运动员转项成才个案研究

文章主要运用深度访谈法,通过以2009年空手道世界锦标赛个人型项目季军黄少青为访谈对象进行个案研究,对竞技武术套路运动员成功转项为空手道个人型项目运动员并获得优异成绩的现象进行初步的探究与分析。结论认为：竞技武术套路运动员转为空手道个人型项目运动员有很大的优势,也存在困难;通过转项后的刻苦训练成才的希望大,且成才年限较短;转项之初的心理压力要及时调整。     

基于隧道技术和NAT-PT结合的IPv6网络

本文在深入研究由因特网工程任务组(IETF)提出的从IPv4到IPv6过渡的3种机制(NAT—PT、隧道、双栈)的基础上,分别给出了NAT—PT和隧道的具体实现技术,并提出利用这两种技术的协同工作如何来组建IPv6网络,最后通过对具体案例的分析,显示其技术优势。     

Socio-political factors and the failure of innovation policy in Croatia as a country in transition

This paper discusses the roles of socio-political factors and related public policies in the economic growth of Croatia, as well as their influence on its transition to a knowledge economy (KE). The Croatian experience might help to understand transition processes in other Central and Eastern European Countries (CEECs). This paper argues that Croatia has failed to capitalize on its inherited science base, which could have been used as a starting point in the transition towards a KE, because it has not made the shift from an obsolete socialist-style science policy to a modern innovation policy (IP); the latter is seen as the new policy paradigm necessary for structural adjustment to a KE.Covert socio-political growth factors shaped by the country-specific historical heritage of Croatia have prevented the recognition of the need for structural adjustment to the new technology regime, and have led to the belief that the IP is not only irrelevant but is also a relict of the state interventionism inherited from socialism, which was the most serious obstacle to policy reform.Examples drawn from the development of the IP and the National System of Innovation (NSI) in Croatia, which shares the socialist model of science policy and the socio-political context of the transition towards a market economy with other CEECs, can help to explain the failure of the IP. In the Croatian case, the decisive factors were the social state of so-called “semi-modernism” and the governance of the so-called “de-industrializing elite”.This paper concludes that the transition of a CEEC from a market economy to a KE requires a serious re-design of development policy, the effectiveness of which depends on social change determined by the political recognition and social assimilation of the new technological regime. In this sense, the current paper contributes to the understanding of the roles of social capital and governance in the economic growth of post-socialist countries.     

磁选机PLC控制系统

在磁选机的控制上采用PLC＋HMI，能极大地改善设备的电气性能，提高设备的自动化水平，保证设备高效、安全运行，以达到提高矿山企业经济效益之目的。     

浅谈下一代互联网协议IPv6

随着Internet的飞速发展,IPv4的缺陷逐渐凸现。针对这个问题,文章介绍了IPv6产生的背景以及IPv6的新特性,同时阐述了从现有的IPv4网络过渡到IPv6的策略。     

Transition to formal schooling: Do transition practices matter for academic performance?

This study examined whether the transition practices implemented in preschool-elementary school pairs contribute to children's academic development during the first year of elementary school. Participants were 398 children who moved from 36 preschools to 22 elementary schools in two Finnish towns. Children were tested in respect to their reading, writing, and math skills in the preschool spring and in the grade 1 spring. The most common practices reported by preschool teachers were discussions about the school entrants and familiarizing preschool children with the school environment and the new teacher. Multilevel latent growth modeling showed that the more the preschool teachers and elementary-school teachers implemented various supportive activities during the preschool year, the faster the children's skills developed from preschool to grade 1 spring. Co-operation over curricula and passing on written information about children between the preschool and the elementary school were the best predictors of the children's skills, although they were the least commonly used practices. The need to restructure the transition to elementary school and the use of multiprofessional resources are discussed.     

婺江柱样沉积物的磁学特征及其与重金属污染的相关分析

通过对婺江江心洲伍佰滩柱样沉积物(76cm)进行多项磁学参数和重金属含量的测定,得到磁性物质和重金属的垂直分布情况。运用SPSS软件对所得数据作主成分分析,分析表明磁学指标χARM/SIRM和χfd%与Fe、Al、Pb、Ga、V、Ce、Cr、Ni、Cu等重金属含量有较强的相关关系,反映了细晶粒亚铁磁性矿物对重金属的吸附作用。建立了利用磁学参数χARM/SIRM和χfd%推断污染较严重的几种重金属含量的线性回归模型。本研究表明利用磁学参数来快速推断河流沉积物的重金属污染状况是可行的。     

传媒体制、媒体社会责任与公共利益——基于美国广播电视体制变迁的反思

本文在梳理美国广播电视体制历史变迁的基础上,分析公共利益在不同的规制模式下的差异化呈现,剖析公共利益与传媒体制之间的关系,进而探究商业化运作背景下实现和确保公共利益的有效路径。     

新媒介生态下的香港报业转型研究

在互联网引发的新媒介生态下,香港报业呈现出两种转型模式:一是以星岛新闻集团为代表的免费内容与规模效益模式:免费报通过对收费报新闻的再加工,降低采编成本,实现规模效益。二是以壹传媒有限公司为代表的产品深加工与免费增值模式:大部分新闻产品实行免费以增加人气,少部分深加工的新媒体内容微收费,以实现盈利。香港报业转型中遭遇的最根本的困境在于,高成本生产的新媒体产品难以盈利。免费成为新媒介生态下唯一的内容生存之道。     

LaFe11.0 Co0.9 Si1.1 B0.2化合物负膨胀研究

利用电弧炉熔炼法制备了LaFe11Co0.9Si1.1B0.2化合物.扫描电镜和能量色散谱仪分析得该化合物主相为NaZn13相,还含有少量的富镧相和富铁相.X-射线衍射仪测量发现,该化合物在居里温度附近的衍射峰随着温度的升高向大角度偏移,分析软件分析并计算得到该化合物在居里温度附近具有明显的负膨胀现象.