The nature of the relationship between teaching concerns and sense of efficacy

This study examined the relationship between prospective teachers’ concerns about their teaching and their beliefs about their sense of efficacy. Three hundred and thirty‐nine prospective teachers participated in this study. Two instruments, the ‘Teaching Concerns Checklist’ and the ‘Teachers’ Sense of Efficacy Beliefs Scale’, were used to elicit the participants’ teaching concerns and their sense of efficacy. Canonical correlation analysis, conducted to explore the relationships between these two constructs, revealed that concern variables were negatively correlated with efficacy variables. This means that if teachers believe their efficacy is weaker, they tend to have more concerns about teaching. The results of this study have implications for teacher education programmes.     

Producing caring qualified teachers: An exploration of the influence of pre-service teacher concerns on learner-centeredness

In a time where students in the United States academic performance continues to lag behind in the international rankings, a disconcerting phenomenon in concerns literature indicates that pre-service and in-service teachers report low levels of concerns regarding the effect implementation of educational innovations have on students. This study explored the relationship of pre-service teachers' learner-centeredness and their concerns related to how learner-centered education affects students. Results indicated that as learner-centeredness increased, so did concerns about student outcomes. Implications for teacher education programmes in the US and abroad will be discussed.     

便携式数据采集器实现快速图书现场采购之我见

结合采访工作，介绍如何利用便携式数据采集器辅助图书现场采选活动，快速高效地进行文献资源建设。     

岸桥移动约束的连续泊位和岸桥集成调度

针对泊位和岸桥集成调度优化未考虑岸桥移动约束限制,造成岸桥频繁移动导致岸桥作业相互干扰、岸桥资源利用率低问题,首先通过拓展现有泊位和岸桥集成调度模型,建立混合整数规划模型实现岸桥分配数量上的合理化,然后以最小化船舶延误成本和岸桥移动成本为目标函数,建立考虑岸桥移动约束限制的泊位和岸桥集成调度的混合整数规划模型.算例表明该模型可以:(1)在靠泊船舶数大于5艘时提高岸桥实际使用效率40%以上;(2)防止因岸桥频繁调动而造成的岸桥作业相互干扰;(3)防止出现在船舶未装卸完之前没有岸桥为其服务的情况;(4)减少由于未限制岸桥频繁移动而带来的额外成本;(5)提高港口码头对岸桥和船舶的管理效率.     

集装箱码头生产运作模式选择优化模型

为使集装箱码头生产系统的运行功能效用和投资效益整体最优,综合考虑系统建设规模、运行效率和投资收益,通过分析各子系统的成本和收益,提出基于集装箱码头生产系统规划的生产运作模式选择优化模型.实例证明,该模型能为处理集装箱码头建设成本和收益、投资和风险之间的矛盾提供一种解决方案.     

使用数据采集器进行图书查重常遇问题探讨

本文介绍了数据采集器在图书现场采购中的使用,并通过对在使用数据采集器查重过程中遇到的问题的分析讲述了几点体会。     

面向移动学习的人体解剖系统的设计与实现

人体解剖系统是一项医学与信息技术、计算机技术相交叉的研究课题。分析了移动学习及人体解剖系统的背景,设计和实现了基于移动平台智能终端的人体解剖系统,该系统在人体解剖的教学及医学科普教育上具有良好的应用前景。     

移动智能终端专利纠纷的社会网络分析

近年来,随着移动智能终端领域的迅猛发展,企业间竞争日趋激烈,相关专利诉讼事件频发,引起社会各界的广泛关注,对该领域复杂的专利诉讼关系进行量化解读,将能够更深入地揭示专利诉讼背后的企业竞争态势和战略意图。通过整理2010-2012年间该领域的专利诉讼事件构建了诉讼关系矩阵,并从可视化、凝聚子群、点度中心度和中间中心度等多个角度,进行了社会网络分析,以期为相关企业和政府部门制定决策提供参考。     

基于专利分析的移动智能终端产业发展策略研究

基于国家专利知识产权局的专利信息系统,对移动智能终端产业发展情况进行全面的分析。在对该产业专利产出态势、专利类别、专利技术、龙头企业的研发重点、专利合作、主流产品等方面的分析基础上,给出我国移动智能终端产业发展的相关策略。     

适用于海事卫星终端的体声波滤波器设计

近年来,国际海事卫星应用范围的扩展对终端设备的微型化与抗噪性提出了更高的要求,薄膜体声波滤波器成为人们关注的焦点。相对于传统滤波器,体声波滤波器具有更高的谐振频率和温度稳定性,更低的损耗和成本,同时可以实现芯片集成。本文介绍了FBAR体声波滤波器的工作原理与设计模型,在此基础上设计出了适用于BGAN下行频段的窄带滤波器。为实现材料参数的实时调整,本文采用Mason模型,通过改变串并联单元级数与面积比,最终设计出滤波器频带为1525~1559Mhz,带外抑制60dB,插损4.3dB。