英汉商务信函中高频模糊限制语使用的异同现象分析

通过定量与定性的方法对英汉商务信函中高频模糊限制语的使用进行研究,结果显示英汉商务信函中高频模糊限制语的使用既存在相同之处也存在一定差异,分析得出这一现象出现的主要原因是由于语言共性及中国和以英语为母语的国家分属不同的语境文化等因素。据此对商务英语教与学提出相关建议：教师应采取文化对比的方式教学,促进正迁移的同时避免负迁移的发生;二语学习者应培养自己的跨文化意识,提高语用能力。     

美国专利商标局10个高被引专利的计量分析

利用专利计量方法和软件,对美国专利商标局所授予的专利进行计量分析。遴选出10个被引用次数最多的高被引专利,分别从这10个专利的自然状况、国家和地区分布、引用频次随时间的分布规律、共被引网络等几个层面进行深入阐述,归纳了高被引专利的相关发生发展规律。通过对相关技术产生与应用的案例分析,对高被引专利的经济社会背景进行更加深入的挖掘。     

稀土掺杂氧卤玻璃光谱性质研究（英文）

本研究主要目的在于探索适用于宽带光纤放大器和蓝绿光激光器用稀土掺杂基质玻璃材料。通过对掺Er3+重金属氧氟玻璃的光谱性质和析晶稳定性研究以及稀土离子掺杂重金属氧卤玻璃的上转换发光研究,为其在宽带掺Er3+光纤放大器和蓝绿光波段激光器中的潜在应用提供基础。研究结果表明：重金属PbF2的加入提高了掺Er3+硅酸盐玻璃和锗酸盐玻璃的带宽特性和增益性能;首次在Er3+/Yb3+共掺和Er3+单掺硅酸盐玻璃发现上转换蓝光;重金属氟化铅的加入提高了Er3+单掺锗酸盐和碲酸盐玻璃的上转换发光;在室温下同时观察到Er3+的上转换蓝光、绿光和红光,分别是由于Er3+离子2H9/2→4I15/2, 2H11/2→4I15/2, 4S3/2→4I15/2, 和4F9/2→4I15/2跃迁;混合卤化铅效应调整Tm3+/Yb3+共掺碲酸盐有利于基质玻璃析晶性能的改善和上转换发光性能的提高;在室温下同时观察到Tm3+的上转换蓝光和红光,分别是由于Tm3+离子的1G4→3H6和1G4→3H4跃迁;首次在碲酸盐基质玻璃中发现OH-吸收对Er3+和Tm3+的上转换发光具有重要影响。     

论中国个人名称标目的区分问题

中国人的姓氏具有姓氏数量相对于总人口的比例严重短缺、各汉字姓氏在人口中的实际分布严重失衡、取名用字高度集中等特点。在中文编目规范控制过程中对中国个人名称标目进行区分尤为重要。中国个人名称标目的区分问题包括对古代个人名称和现代个人名称标目形式的问题;标目附加成分选取标准的控制原则、附加成分类型的划分和属性的分析等。将文献计量学的概念引入规范控制研究领域,会进一步丰富编目规则修订工作的信息来源,有助于拓展规范控制的研究领域。参考文献12。     

体裁、社会效应与学术竞争力——图书情报学科高被引论文内容结构考察

[目的/意义]学术竞争力被普遍认为是衡量学科可持续发展的关键要素;通过图书情报学(简称"图情")高被引论文的内容结构特征阐释图情学术竞争力不足的影响因素并揭示其成因。[方法/过程]融合社会分层理论、市场效率理论和资源基础理论提出学术竞争力模型,构建"体裁-学术规范-社会效应"内容分析框架,利用中国知网全文数据库图情重点期刊2009-2013年80篇高被引论文、6552条引文开展内容分析。[结果/结论]高被引论文之报导型、基础型、应用型和综述型的体裁分布依次为78.8%、3.75%、10%和7.5%,且报导型以图书馆职业研究为主;高被引论文职业实践效应明显,基础社会效应相对不足。上述发现表明,图情学科学术竞争力不足跟论文的体裁结构和社会效应水平紧密相关,职业化是导致学术竞争力不足的根源。因此,就教育层面而言,推进学科转型是一条必由之路。     

Electric field manipulation enhanced by strong spin-orbit coupling: promoting rare-earth ions as qubits

Quantum information processing based on magnetic ions has potential for applications as the ions can be modified in their electronic properties and assembled by a variety of chemical methods. For these systems to achieve individual spin addressability and high energy efficiency, we exploited the electric field as a tool to manipulate the quantum behaviours of the rare-earth ion which has strong spin-orbit coupling. A Ce:YAG single crystal was employed with considerations to the dynamics and the symmetry requirements. The Stark effect of the Ce³⁺ ion was observed and measured. When demonstrated as a quantum phase gate, the electric field manipulation exhibited high efficiency which allowed up to 57 π/2 operations before decoherence with optimized field direction. It was also utilized to carry out quantum bang-bang control, as a method of dynamic decoupling, and the refined Deutsch-Jozsa algorithm. Our experiments highlighted rare-earth ions as potentially applicable qubits because they offer enhanced spin-electric coupling which enables high-efficiency quantum manipulation.     

A Bibliometric Analysis of High Impact Research in the Middle East Using Champion Works

Increasing political and financial support for scientific research in the Middle East requires academic and research communities in the region to demonstrate the visibility and impact of their scientific output. However, for countries with smaller scientific communities or lack of detailed information on their scientific production, the use of common metrics of scientific impact (e.g., number of papers, impact factor, h-index, etc.) may fail to reveal their true ability to produce high quality research, and thus guarantee the wanted societal support. In such cases, identifying and highlighting outstanding papers produced by national institutions or scientists may be another way to demonstrate scientific capacity and impact. In this context, this work aims to provide an overview of champion works (papers that have received over 1,000 citations) produced by Middle East countries. This analysis focuses on science, medicine, and technology papers featured in the Science Citation Index Expanded of Web of Science. The authors identified 213 champion works authored by Middle East scientists published since the 1970s. Israel is currently the leading nation in the Middle East in terms of published champion works, but at least one such work was identified for the majority of countries in the region. Middle East champion works were published on a diverse range of subject categories and often featured in the top journals worldwide (e.g., Science, Nature, etc.). The top institutions in the Middle East authoring champion works and their leading collaborating countries worldwide are listed, and the role of international scientific collaborations in achieving these highly cited papers is highlighted.     

金属离子对人体健康的影响综述

本文列举了近年来在生物无机化学及医学中的许多新研究的实例 ,讨论了在这些领域中金属离子为人类健康所带来的诸多裨益 ,但由于不适当的剂量也会带来祸根。     

以“三个代表”为纲，大力推进文艺发展

“三个代表”的思想是总揽各项事业包括文艺工作的纲领.落实“三个代表”精神,是当代文艺发展的必由之路.应当把学习贯彻“三个代表”的思想与贯彻执行党的其他文艺方针政策结合起来;唱响主旋律,发展多样化;倡导艺术创新,勇于在文坛领跑;加强文艺队伍建设,不断提升主体素质.     

锚索支护技术施工三岔门的实践及分析

介绍了锚索支护技术工艺,对比分析了谢桥煤矿桥式台棚及锚索支护技术施工三岔门,总结出锚索加强支护技术施工三岔门具有安全、高效、经济等特点。