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    石墨烯量子点-硒化锌复合材料的制备及性外文翻译资料

    英语原文共 6 页, 石墨烯量子点-装饰ZnS纳米带具有高效的光催化性能dagger; 无机材料和石墨烯的杂化纳米结构对废水的环保处理具有巨大的潜力。在这里,石墨烯量子点-装饰ZnS纳米带可通过简单的水热法合成。两种材料的静电吸引和石墨烯的热还原是制备明确的复合纳米结构的主要驱动力。研究发现,GQD/ZnS纳米复合材料中的GQDs是离散存在的并且均匀地分布在ZnS纳米带表面。GQD/ZnS纳米复合材料的光催化活性在GQD/ZnS的质量比为8times;10-4时最高。已发现在罗丹明B的光降解反应中具有最佳GQD含量的GQD / ZnS纳米复合材料的光催化速率常数(0.0046 min-1)比市售ZnS粉末高14倍。修饰后的GQDs引入了额外的可见光响应,并充当电子收集器和传输器来有效地阻止电子空穴复合,从而极大地增强了ZnS纳米带的光催化性能。 引言 具有功能特

    钢筋混凝土结构设计优化外文翻译资料

    英语原文共 22 页, 钢筋混凝土结构设计优化 Muhammad Afzal, Yuhan Liu, Jack C.P. Cheng, Vincent J.L. Gan 香港科技大学土木及环境工程学系,香港 关键词:批判性评论、环境可持续性、优化策略、加固优化、钢筋混凝土结构设计 摘 要:建筑设计优化对于最大限度地提高已建设施的可靠性、成本效率和环境可持续性起着重要的作用。随着钢筋混凝土(RC)结构的建设需要大量的钢筋和混凝土,以最小环境影响为目标的钢筋混凝土结构优化设计近年来越来越受到学术界和工业界的关注。如今,新的信息技术和计算技术越来越多地被用于钢筋混凝土结构的可持续设计和优化,以实现能源效率的最大化,但仍缺乏一个批判性的综述,以总结该领域的共同研究主题和突出未来的需求。因此,本文的主要目的是批判性地回顾以往关于RC结构在最小环

    钢筋混凝土填充墙钢框架组合压杆的有效简化模型外文翻译资料

    英语原文共 13 页, 钢筋混凝土填充墙钢框架组合压杆的有效简化模型 概要:为解决钢筋混凝土(RC)填充墙的部分约束的钢框架的滞回性能的微观数值分析预测不准确的问题,在对PR钢框架填充墙裂缝分布、荷载传递机理和破坏模式进行试验观测的基础上,提出了一种新型的复合压杆简化模型。本文提出的实心RC填充墙组合压杆模型由alpha;斜压杆和主斜压杆组成。alpha;斜撑用于反映剪力连接件沿框架-墙界面抵抗的部分侧向力,由于钢框架与钢筋混凝土填充墙之间的相互作用比较复杂,所以为了考虑沿对角线方向传递的剩余侧向力,引入了主斜撑。本文分别推导了alpha;斜撑和主斜撑有效宽度的计算公式。以钢筋混凝土填充墙PR钢框架为例,采用复合斜压杆模型进行了数值模拟。由该模型得到的最大抗侧力和滞回曲线形状与试验结果吻

    兼容性建模 ——服装搭配的数据和知识应用外文翻译资料

    英语原文共 140 页, 兼容性建模 ——服装搭配的数据和知识应用 信息概念、检索和服务综合讲座 摘要 如今,时尚已经成为人们日常生活的重要方面。由于每个服装搭配通常包括几个互补项,例如上衣、下装、鞋子和配饰,因此一套合适的服装搭配很大程度上取决于这些互补项的协调搭匹配度。然而,并不是每个人都擅长于服装的搭配,尤其是那些缺乏时尚审美的人。幸运的是,像IQON和Chictopia等以在线时尚为导向的社区以及Amazon和eBay等电子商务网站的数量都在增加。关于人们各种时尚行为的大量现实世界数据为自动化的服装搭配打开了一扇门。 尽管具有重要价值,但由于服装搭配的兼容性模型会评估给定的一组(相等或两个以上的)时尚服饰,例如一件上衣和一条裙子的兼容性得分,这带来了严峻的挑战:(1)缺

    基于时空因素的犯罪预测综合模型外文翻译资料

    英语原文共 6 页, 2018 IEEE国际数据挖掘会议 基于时空因素的犯罪预测综合模型 费依lowast;,余志文lowast;,庄福珍,肖章,熊辉。 lowast;西北工业大学,陕西西安,中国。 dagger;中国科学院计算技术研究所智能信息处理重点实验室,北京,中国。 para;中国科学院大学,北京,中国。 Dagger;南京大学,江苏南京,中国 。 sect;罗格斯大学,新泽西州,美国。 yifeinwpu @ gmail.com,zhiwenyu @ nwpu.edu.cn,zhuangfuzhen @ ict.ac.cn tobexiao1 @ gmail.com,xionghui @ gmail.com 摘要—鉴于其重要性,犯罪预测在参考文献中引起了大量关注,并且目前已经提出了几种方法来发现犯罪预测特征的不同方面。在本文中,我们提出了一个聚类的连续条件随机场(Clustered-CCRF)模型,该模型能够以综合的方式有效地利用时空因素进行犯罪预测。特别要注

    音频的深互模相关学习音乐检索中的歌词外文翻译资料

    英语原文共 11 页, 摘要---深度跨模态学习以学习不同数据模式间的联合表示为目标,成功地展示了跨模态多媒体检索的优异性能。不幸的是,很少有研究集中在跨模态相关学习上,其中考虑了音频和歌词等不同数据模式的时间结构。从音乐的时间结构特征出发,我们有动力去学习音频和歌词之间的深层次的序列相关性。在这项工作中,我们提出了一个包含两个分支的深层跨模态相关学习架构,用于音频模态和文本模态(歌词)。将不同模态数据转换为同一个典型空间,利用模态间典型相关分析作为目标函数,计算时间结构的相似性。这是第一个通过学习音频和歌词的成对时间相关性的深层结构来理解语言和音乐音频之间的相关性的研究。使用预先训练的Doc2vec模型,然后是完全连接的层(完全连接的深层神经网络)来表示歌词。在音

    高速铣削外文翻译资料

    High-speed milling High-speed machining is an advanced manufacturing technology, different from the traditional processing methods. The spindle speed, cutting feed rate, cutting a small amount of units within the time of removal of material has increased three to six times. With high efficiency, high precision and high quality surface as the basic characteristics of the automobile industry, aerospace, mold manufacturing and instrumentation industry, such as access to a wide range of applications, has made significant economic benefits, is the contemporary importance of advanced manufacturing technology. For a long time, people die on the processing has been using a grinding or milling EDM (EDM) processing, grinding, polishing methods. Although the high hardness of the EDM machine parts, but the lower the productivity of its application is limited. With the development of high-speed processing technology, used to replace high-speed cutting, grinding and polishing process to die p

    冲压模具设计拉深起皱外文翻译资料

    附录B: 外文原文 Stamping die design deep drawing wrinkling Wrinkling that occurs in the stamping of tapered square cups and stepped rectangular cups is investigated. A common characteristic of these two types of wrinkling is that the wrinkles are found at the draw wall that is relatively unsupported. In the stamping of a tapered square cup, the effect of process parameters, such as the die gap and blank-holder force, on the occurrence of wrinkling is examined using finite- element simulations. The simulation results show that the larger the die gap, the more severe is the wrinkling, and such wrinkling cannot be suppressed by increasing the blank-holder force. In the analysis of wrinkling that occurred in the stamping of a stepped rectangular cup, an actual production part that has a similar type of geometry was examined. The wrinkles found at the draw wall are attributed to the unbalanced stretching of the sheet metal between the punch head and the step edge. An

    固体颗粒滑脱量的推算建筑行业除尘系统中的清洁装置外文翻译资料

    外文原文 Evaluation of solid particles slippagersquo; amount throw out wet dust cleaning device in the dust removal system in building industry Abstract This article describes a way of reducing dust emissions of pollutions exhausted in the atmosphere in the manufacture of expanded clay aggregates applying high effective wet dust cleaners with a combined scheme of separation of dust from the gas flow within systems cutting dusting aspiration. It was observed a brief description of main technological processes and devices and related major sources of emissions and discharges of pollutants into the atmosphere in the expanded clayrsquo;s producing in this article. It was described an industrial survey of a representative sample of aspiration systems and of enterprises of granular clay pellets using dust precipitatorrsquo;s within those system. There concern the main results of the dispersed analysis of variance dimensionrsquo;s particle of expanded clay dust stemming and

    水堆冷却塔冷却剂智能流量控制系统外文翻译资料

    外文原文 An intelligent flow control system of coolant for a water reactor based cooling tower a b s t r a c t A cooling tower used in power plant or reactor is a heat rejection device, which extracts waste heat to the atmosphere though the cooling of a water stream to a lower temperature. Heat is generated in the primary loop and transferred to the secondary loop of a water reactor. Hence, fluid temperature in the secondary loop becomes very high which uses cooling tower to be cooled down. Therefore, an automated control system is necessary to develop for controlling this process since the operation of this stage is very sensitive and human interference is very risky. In this study a prototype of intelligent flow control system based on Fuzzy Logic Control (FLC) is developed which gives the possible solution for this problem. The system works based on the temperature difference of inlet and outlet and flow of the coolant. The inlet temperature is set to 37.8 °C whi

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