英语原文共 35 页， 表9.4运输景观和列车长度值的成本计算 网络容量 每两个BE端子 火车的长度, (双向) 服务区域 频率 25000 LUs bull; BE network 156 m, 1 bull; HS network 313 m, 1 bull; TCD, L, TF network 625 m, 1 50000 LUs bull; BE network 313 m, 1 bull; HS network 625 m, 1 bull; TCD, L, TF network 625 m, 2 100000 LUs bull; BE network

英语原文共 11 页， 基于BP神经网络的多尺度局部特征学习用于滚动轴承智能故障诊断 Jimeng Li, Xifeng Yao, Xiangdong Wang, Qingwen Yu, Yungang Zhang 摘要：传统的基于人工选择特征的智能故障诊断技术不能充分利用原始数据信息，缺乏特征自学习能力。而且，不同故障信号中信息最丰富、特征最明显的部分在时域和频域信号中只占很小的一部分。因此，为了自适应地学习原始数据的判别特征，提出了一种基于反向传播神经网络的滚动轴承故障诊断多尺度局部特征学习方法。基于故障特征在时域和频域的局部特征，利用BP神经网络从不同尺度的信号中局部学习有意义的、不同的特征，提高了故障诊断的准确性。通过两组滚动轴承数据集的对比，验证了该方法的有效性和优越性。 关键词：滚动轴承故障诊断、多尺度、局部特征学习、BP神经网

英语原文共 9 页， 评估服务环境的物理因素 主题餐厅 摘要 主题餐厅主要以空间规划、装潢和娱乐安排为基础，以鲜明的主题或特定的风格吸引消费者，在消费者心目中创造价值。然而，在上世纪90年代初到中期，主题餐厅的人气迅速增长之后，开始失去市场份额，许多曾经风靡一时的品牌被迫缩减规模。本研究探讨主题餐厅影响消费者认知的物理因素，以发展规划与设计阶段的评估工具。首先，在参考公开的量表后，确定了各个维度和方面，并将其发展为问卷项目。在对279人的试点样本和286人的官方样本进行检验后，建立了“主题餐厅物理因素量表”。分析结果表明，结构方程模型的二阶验证性因子分析对验证主题餐厅物理因子量表是有效的。其中，美学、环境条件、空间/功能、座椅舒适度、清洁度等5个潜在变量和1

英语原文共 12 页， 虚拟博物馆的未来：在线，沉浸式3D环境。 介绍 虚拟在线博物馆的面貌正进入另一个变革时期。虽然重点一直是通过使用基于网络的交互式演示文稿来扩大对博物馆的访问，但是下一代虚拟在线博物馆将寻求创建沉浸式的环境，使博物馆顾客成为博物馆的代表，而不仅仅是观看有关集合的信息。在低成本的个人计算机和支持Internet访问的下一代主机游戏系统上使用最新的实时渲染软件，将使学生和教师具有“精益求精”的无缝教育博物馆体验。 （琼斯2002） 本文概述了当今使用的虚拟博物馆的当前方法，然后讨论了3D沉浸式虚拟在线博物馆环境的未来。 当下的虚拟博物馆 如今，虚拟博物馆主要是通过基于个人计算机的Web浏览器（例如Netscape或Internet上的Internet Explorer）使用万维网和HTML技术提供的。技

英语原文共 8 页， 英语译文共 17 页， 资料编号：[239134]，资料为PDF文档或Word文档，PDF文档可免费转换为Word

From the Board: The US Attack on the WTO Appellate Body INTRODUCTION It is becoming more and more common knowledge that the US has launched an attack on the composition and the proper functioning of the WTO Appellate Body (AB). This started under the Obama administration and is carried forward by the Trump administration with such enthusiasm that it may well lead to the destruction of one of the most recent and most productive international judicial bodies, barely twenty years after its creation. This editorial will recall briefly the historical back- ground to the present approach of the US and how it has developed from a merely ham-handed attempt to influence the course of the AB into a curious combination of blackmail and the game of chicken by making the survival of the AB as a functioning entity dependent on the other Members of the WTO giving in to certain demands of the US. These demands relate to the interpretation, or even the modification, of certain provi

1 China Simplifies 'Negative List' in Further Easing of Foreign Investment Restrictions 1.1The Situation: The Negative List is a list of industries for which foreign investment in China is either prohibited, or subject to greater scrutiny and restrictions. The Development: Chinese authorities have issued a shortened Negative List, under which foreign ownership restrictions have been removed or relaxed in certain industries, including financial services, automotive, transportation, power, and resources. Looking Ahead: Foreign investors should take advantage of the removal of restrictions in relevant industries, but be aware that other requirements could still be imposed. Chinas National Development and Reform Commission ('NDRC') and Ministry of Commerce ('MOFCOM') released a shortened version of the 'Foreign Investment Market Entry Special Administrative Measures' ('Negative List') on June 28, 2018. The shortened version of the Negative List took effect on July 28

DOI: 10.1007/s10272-018-0760-5 Forum End of previous Forum article Bernard Hoekman* Revitalising Multilateral Trade Governance The global trade regime is a major success story of multi- lateral cooperation. It has helped to enable a large number of countries to expand their participation in world trade, with associated reductions in prices, increased consumer choice and higher productivity. Rising average per capita incomes and lower poverty rates in many developing econ- omies are in part the result of greater trade integration. The concomitant rebalancing of global income shares and competitive pressures emanating from emerging econo- mies, especially China, is generating challenges for the trading system. In part, this is reflected in a broader lsquo;back- lash against globalisationrsquo; in high income countries. More specifically, it has fed perceptions that success is based in part on unfair trade practices. Competition between gov- ernments to attract in

Analysis and Implementation of a Novel Single Channel Direction Finding Algorithm on a Software Defined Radio Platform John Joseph Keaveny Capter1 A radio direction finding (DF) system is an antenna array and a receiver arranged in a combination to determine the azimuth angle of a distant emitter. Basically, all DF systems derive the emitter location from an initial determination of the angle-of-arrival (AOA). Radio direction finding techniques have classically been based on multiple-antenna systems employing multiple receivers. Classic techniques such as MUSIC [1][2] and ESPRIT use simultaneous phase information from each antenna to estimate the angle-of-arrival of the signal of interest. In many scenarios (e.g., hand-held systems), however, multiple receivers are impractical. Thus, single channel techniques are of interest, particularly in mobile scenarios. Although the amount of existing research for single channel DF is considerably less than for multi-channel di

英语原文共 11 页， 利用地下行人系统实现城市可持续发展 Jianqiang Cui，Dong Lin 摘要 地下行人系统（UPS）在特大城市的中心地区已经成为一种城市现象，为行人提供可供选择的安全、便捷、高效且令人愉悦的步行通道。尽管在世界范围内有许多成功运行的UPS，但是地方当局尚未充分了解其应用和性能。先前的研究讨论了UPS的发展将会给城市和人民带来的影响，但对于如何开发UPS来促进城市可持续发展的理解仍需提高，包括经济可行性、环境宜居性、社会公平性。本文详细地讨论了在城市可持续发展的背景下发展UPS的潜在贡献与挑战。其中包含了在诸如实现经济可持续性、管理不可再生和脆弱的地下资源、人性化和社会可持续性的需要的具有挑战的当代环境下，关于UPS和城市发展之间的关系在城市规划概念方面的综合分析，例如�