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关键词： 谈心   阳台   精灵  

摘要： 乌云遮住了天边,太阳无精打采地挂在云后,让天空没有一丝光亮。雨悄无声息地落了下来。雨点像一群小小的调皮的精灵,打湿了窗。我跑到阳台上,让雨点落到我的身上、手上。我抬起头,静静地感受那细如蚕丝的雨。听啊,那雨落的声音,是精灵们在谈心;看啊,那纷飞的雨丝,是精灵们在跳舞。

关键词： 大运河   中西合璧   建筑分类   形成原因   保护发展   镇江  

摘要： 大运河是我国千百年来形成的一条独具特色的流动文化长河,为我们带来了深远的历史意义与文化价值。镇江作为大运河途经的重要城市,其不同类型的建筑样式是城市为我们留下的宝贵历史文化,也是城市逐步走向近代化的历史见证。针对大运河周边城市内不同类型的中西合璧式建筑的形成过程进行分析,以镇江为研究对象,例举分析了近代以来不同形式的中西合璧建筑格局,分析其历史与文化价值,并对江苏沿运地区中西合璧建筑的保存与发展进行了思考与探讨。

关键词： 桥梁伸缩缝   有限元模型   静力学分析   锚固区混凝土强度  

摘要： 桥梁伸缩缝作为桥梁结构重要组成部分,长期直接经受车辆荷载的反复作用,极易发生疲劳破坏,为了分析桥梁伸缩缝在车辆荷载静力作用下的受力情况,本文建立CD100型异型钢伸缩缝的有限元模型,模拟分析了桥梁伸缩缝静力作用下的整体受力情况,并研究分析了不同锚固区混凝土强度对伸缩缝受力情况的影响。研究表明:伸缩缝在静力作用下的最大应力点发生在F型边梁腹部,锚固区混凝土将会发生强度破坏;随着锚固区混凝土强度的增大,伸缩缝所受最大应力线性减小,锚固区混凝土强度标号从C25增加到C60,伸缩缝所受最大应力值减少了5%,从而可以提高桥梁伸缩缝的使用寿命。

关键词： 生态校园   水生态构建   水文化规划   水景观规划  

摘要： 在"生态校园"概念的引导下,以生态优先为理念、生态学原理为指导、生态平衡为原则、生态构建为核心、水文化和水景观规划为补充,依据现场区域特点、水质状况等实际情况,结合水生态目标校核,设定不同生态功能分区,采取多种净化措施进行强化处理,以构建完整的生态校园景观水系水生态系统。文中以某学院智慧水利示范建设项目中的水生态系统构建为例,对生态校园景观水系规划进行简要探讨,以期为今后新建校园建设提供重要的参考。

关键词： 传统商业街   发展现状   设计改造   策略探究  

摘要： 城市现代化建设促进了商业街规模拓展过程,传统商业街现存的基础生活设施已难以迎合广大群体日益增长的现实生活需求。文章在解读传统商业街定义与特征的基础上,分析传统商业街运作现状及存在的主要问题,同时结合实际项目设计提出改造策略。希望能对后续相关传统商业街改造工作有一定指引作用。

关键词： Merkel cell type   Merkel cell carcinoma   Small cell neuroendocrine carcinoma   Parotid gland   Oligometastasis   Brain metastasis   Stereotactic radiotherapy   Case report   MAJOR SALIVARY-GLANDS   STEREOTACTIC RADIOSURGERY   SPONTANEOUS REGRESSION   RADIATION-THERAPY   LUNG-CANCER   PHASE-II   MULTICENTER   METASTASES   POLYOMAVIRUS   CHEMOTHERAPY  

摘要： Oligometastatic disease is a hypothesized intermediate stage of disease between localized and widespread metastatic cancer. Localized treatment of oligometastatic lesions may offer survival advantages in addition to systemic treatment. In this case report, we describe a patient who presented with small cell neuroendocrine carcinoma "Merkel type" (SNECM) of the parotid gland which had metastasized to the brain and adrenal gland. He was treated with chemotherapy followed by stereotactic radiotherapy and volumetric modulated arc therapy for oligometastasis. He maintains good functional status with low burden of disease at 20-months after diagnosis. SNECM is a rare and aggressive parotid cancer with immunohistochemical and morphologic similarities to Merkel cell carcinoma (MCC). There are only 44 cases of parotid SNECM in the English literature. This is the first case to describe management of oligometastatic SNECM and we review literature on management of both SNECM and metastatic MCC.

关键词： Software-defined networking   VANET   Software-defined vehicular ad hoc networks   Architecture   Routing protocols   SDN   CHALLENGES   FUTURE  

摘要： With the advances in automotive industry and telecommunication technologies, more and more vehicles are connected which paves the pathway to future intelligent transportation system (ITS). The safety of both the passengers and pedestrians has been a major concern in ITS. Vehicular ad hoc network (VANET) is a promising technology that can provide a wide range of services, such as safety, convenience, and infotainment for both the passengers and drivers. However, due to the dynamic nature of the vehicular environment, VANET has to deal with several challenges such as intermittent connectivity, provisioning of quality of service (QoS), and heterogeneity of applications. Moreover, the deployment of new services/protocols on a large-scale is a daunting task due to the inflexible architecture of VANET. The distinctive features of software-defined vehicular network (SDVN) such as programmability and flexibility leverages the vehicular network to satisfy the performance and management requirements of VANET. In this paper, we first present the taxonomy of SDVN architecture based on its modes of operation. Then we survey the state-of-the-art SDVN routing protocols and classify them based on different criteria. Finally, we highlight the challenges of current SDVNs.

关键词： Merkel cell carcinoma   Differentiation   Metastasis   Merkel cell polyomavirus   POLYOMAVIRUS   TUMOR  

关键词： Microbial fuel cells   Ammonia removal   Ammonia volatilization   Abiotic tests   Electrochemical oxidation of ammonia   WASTE-WATER TREATMENT   AIR-CATHODE   ELECTRICITY-GENERATION   NITROGEN REMOVAL   BIOFILM   SEPARATORS   TRANSPORT   RECOVERY  

摘要： It has been hypothesized that ammonia removal is primarily due to ammonia volatilization through the air-cathode in single-chamber microbial fuel cells. This hypothesis was supported by the "abiotic tests" with microbial fuel cells. In our reproduced abiotic test, the same extent of decrease in ammonia concentration was observed regardless of gas permeability through the air-cathode. In an experiment replacing chloride ions with sulfate ions in wastewater, almost no decrease in ammonia concentration was observed. These results suggest ammonia loss in the "abiotic tests" was mostly driven by electrochemical oxidation due to chloride ions also present in the solution. When the pH of the synthetic wastewater was made equivalent to that near the cathode of electricity-generating microbial fuel cell but without an applied voltage, a decrease in ammonia concentration was observed. The result suggests that the hypothesized ammonia volatilization through the air-cathode does occur and contribute to ammonia loss to some extent.