Spatial Discovery of Linked Research Datasets and Documents at a Spatially Enabled Research Library

Current publishing practices in academia tend to result in datasets that are difficult to discover. This is because datasets are not well-integrated across academic domains and they are often not linked to the documents that reference them. For these reasons, discovering datasets across domains can be challenging; for example, discovering archeological observations and biological specimens using the same search is not widely supported, even if both datasets share a similar spatial extent, like Mesoamerica. It is also challenging to retrieve relevant documents that reference datasets; for example, retrieving a series of field reports that reference archeological observations is typically not supported. Our work develops an extensible method for: (1) geographically integrating collections across disciplinary repositories and (2) connecting datasets to related documents. We describe a collection of spatially-referenced researcher datasets, capturing their metadata elements and encoding them as linked open data. We then leverage existing library services to formalize links from datasets to documents. The system described in this work has been deployed, resulting in an experimental open data site for the UCSB campus. Results indicate that this system can be scaled-up with support from an institutional repository in the near future.     

土地整理后海宁市农田土壤养分空间分布格局研究

将GIS和地统计学方法相结合,以浙江省海宁市为例,分析了土地整理之后水稻田土壤pH、有机质、全氮、有效磷和速效钾的空间格局现状,绘制各要素的空间分布图.研究结果可以为了解土地整理项目实施环境影响评价以及当地的精确农业管理和防治农业非点源污染提供科学的决策咨询.     

基于区域知识能力的空间知识溢出模型研究

围绕区域知识能力综合评价和知识溢出模型修正,综合考虑区域临近、信息、人员流动等因素,通过引入知识溢出效率系数,构建知识溢出效率系数经验公式;采用区域知识能力差距替代区域知识存量差距;采用区域知识吸收能力替代区域学习能力;并在弗森伯格划分潜在知识溢出和实际知识溢出思想的基础上,对凯尼尔斯模型进行改进,转变其仅测度区域间潜在知识溢出效应的弊端,使修正后模型直接评价区域间实际知识溢出效应值,使模型更具合理性和科学性,更加贴近我国经济运行现实。     

Photonic orbital angular momentum with controllable orientation

Vortices are whirling disturbances, commonly found in nature, ranging from tremendously small scales in Bose-Einstein condensations to cosmologically colossal scales in spiral galaxies. An optical vortex, generally associated with a spiral phase, can carry orbital angular momentum (OAM). The optical OAM can either be in the longitudinal direction if the spiral phase twists in the spatial domain or in the transverse direction if the phase rotates in the spatiotemporal domain. In this article, we demonstrate the intersection of spatiotemporal vortices and spatial vortices in a wave packet. As a result of this intersection, the wave packet hosts a tilted OAM that provides an additional degree of freedom to the applications that harness the OAM of photons.     

高技术产业演化的时空分异测度研究

 利用信息熵、集中度指数和产业空间集聚β指数等指标对中国高技术产业演化的时空分异状况进行测度，计算结果表明：在时间序列上我国高技术产业演化可以分为三个阶段，演化特征呈现“均衡→非均衡→均衡”格局。在空间布局上我国高技术产业呈现较强的地理集中现象，且高技术产业地理集中存在地方性行业垄断特征，不同行业集中趋势不同，主要集中在长江三角洲、珠江三角洲和环渤海湾三大地区。高技术产业分工的地方化特征是导致高技术产业布局与空间距离具有弱相关性的直接原因。     

论《无可慰藉》的空间意象与生存困境

石黑一雄的长篇小说?无可慰藉?再现了主人公在一座不知名的中欧小城中梦幻离奇的漫游旅程。 小说中空间意象的建构成为作者推进小说叙事和阐释主题的重要策略。 小说实际上从个体的精神危机展开了对更普遍的群体的精神异化现状的思考。 结合空间叙事理论来分析小说中空间意象背后丰富的隐喻意义以及人与空间互动中的感知体验,可以洞见作者对现代人生存困境的深刻关怀和担忧。     

湘江经济带的空间结构现状及调整研究

湘江经济带是湖南省经济发展条件最好、经济发展水平最高、生产力要素最密集的区域,是连接珠江在角洲开放区和长江沿岩开放带的走廊和纽带。本区域的经济空间结构不仅直接影响湖南省的产业空间布局,而且对整个南中国地区的区域经济空间格局的形成和演化有着重要影响。湘江经济带产业化空间结构的调整应从三个层面进行：（1）在地域分工理论指导下,选择合理的区域开发空间模式;（2）重点优化轴带内的“发展极”－－即各级各类中心城市;（3）加强区域内外空间联系,既充分接受珠江三角洲的辐射带动,又积极参与长江沿岸经济带的开放、开发,强化“大武汉经济圈”的意识。     

主位推进模式在大学英语写作教学中的应用

衔接与连贯是学生在英语写作中存在的问题。功能语言学的主位推进模式为大学英语写作教学中的衔接与连贯问题提供了新的启发。因此,本文将在系统功能语言学的主位推进模式理论的指导下,对大学英语写作教学进行研究,以期提高学生的语篇组织能力,从而提高学生的写作水平。     

Spatializing a global education phenomenon: private tutoring and mobility theory in Cambodia

ABSTRACT

Along with the dramatic expansion of private tutoring around the world, a significant body of literature has been produced to understand this phenomenon. While many studies consider the issue of geographic location, the spatial dimension tends not to be a central focus of private tutoring studies. In contrast, the present essay applies mobility theory to research from Cambodia, where private tutoring is essential to student success. It does so in order to place private tutoring provision into a broader perspective that includes but moves beyond the economic dimensions of supply and demand and the sociological dimensions of economic, cultural, and social capital to include consideration of how private tutoring provision is constrained by a multidimensional spatial field of possibilities and how private tutoring participation is enabled by one’s position and abilities in relation to that field. The paper argues for increased attention to ‘spatial capital’ in studies of private tutoring and education generally.     

“互联网+”视角下的动画产业业态发展研究

“互联网+”是互联网技术推动下的经济社会发展新理念。通过互联网的连接作用,各类社会资源与动漫作品深度融合,给动漫产业带来了大型跨界IP、垂直化内容平台、众筹创作、融媒体动漫等新兴业态与新动漫作品类型,对其成因与变化发展进行分析,对全面了解互联网时代的动画产业具有现实意义。