近代国人了解世界的一扇窗口——《世界现势大地图》

宁夏某藏家手中有一幅民国时期上海世界舆地学社出版的《世界现势大地图》。该地图以中国为基轴全面描绘了一战以后帝国主义战胜国集团主导下的世界政治地理格局。作为近代国人了解世界的一扇窗口,《世界现势大地图》发挥着传播地理知识、服务社会大众、激励民族精神的重要作用。详细介绍了《世界现势大地图》概况及其编绘及发行。

基于大地图的地理信息服务模式探讨

我国当前已经进入高科技的数据时代,这对于我国智慧城市的发展有着很大的影响。论文基于对大地图的发展阶段和作用进行简要分析,探讨大地图对地理信息服务模式的变革,从而为我国智慧城市的建设提供新思路。

实现大地图快速缩放和实时显示的一种有效方法

对于大地图,传统的放大或缩小方法所需的内存空间过大,这往往不能适合许多场合的要求。为此,提出了一种基于大地图的缩放方法,应用本方法可以实现大地图的快速缩放和实时显示。

“大地图”:普通高中地理课程建构与深度教学探索

地图是地理信息的载体和认知工具,“大地图”是地理学科核心素养的重要表征形式,它指向地理学科知识背后更为本质、核心的地理概念或思想。本文以“大地图”为视角设计有逻辑、个性化和立体化的课程图谱、概念图、进阶图和教学流程图等,为地理深度教学找到最核心、最有价值的载体。“大地图”既有对现实地理教学的理性考量,也有对地理教育理想的追求。

基于大地图的地理信息服务模式研究

大地图是地理信息系统服务发展的重要趋势,将大地图的数据支撑应用于地理信息服务模式,不仅有助于地理信息服务业务模型的优化,更对我国智慧城市建设具有深刻影响.本文在阐述大地图特征及作用的同时,对大地图和地理信息服务关系进行分析,并指出大地图理念下,地理信息服务模式的创新方向.以期有利于大地图理念和地理信息服务模式的充分结合,进而实现智慧城市的进一步建设与发展.

基于大地图的地理信息服务模式

当前中国已经进入智慧城市快速发展的阶段,大数据为智慧城市提供了强劲的数据支撑,是智慧城市发展不可缺少的核心内容。该文以众多智慧城市建设项目、科研项目为基础,论述了"新时代"大地图与大数据的关系,重点研究了大地图对地理信息行业服务模式的变革,在这项研究中融合了相关的业务模型,为智慧城市建设中地理信息服务模式的发展提供思路。

关于对全国天文大地网局部变形的分析

本文根据国家GPS A级网、B级网的数据(坐标、弧长、弦张)与全国天文大地网进行比较分析,确定了我国天文大地网的变形、扭曲的地区和范图,分析产生形变的原因,提出了GPS网与全国天文大地网进行联合平差,可以存放地消除或削弱这一地区系统误差的影响。

试论《山海图》

在否定禹九鼎说、楚汉壁画说的基础上,通过对《山海经》的据图叙事形式,所表述的地图要素以及涉及的地域范围等方面的论证,提出《山海图》是一幅综合性、多功能的世界大地图的主张,并认定它出于周初殷遗史官的绘制,距今巳3000多年。

MATHEMATICAL BASIS FOR LARGE SCALE GIS AND TERRESTRIAL DIGITAL PRODUCTS

The problem of spatial mathematical basis has been encountered by both large scale GIS and spatial digital products theoretically and practically.It is also a basic problem in the development of the whole geo_information science.After analyzing the status quo and the limitations of the space mathematical base of GIS,this paper points out definitely that the geodetic coordinate system is uniform,which can show the location of any point of the global exactly and uniquely in form of ( B,L,H ) and is the most proper reference system of large_scale GIS and Digital Earth.Moreover,this paper also puts forward a set of practical model of the standard "map projection".Finally,this paper introduces a DRG system based on this model.

The Archaeologic Map and GIS in Ancient Topography Researches： The ＂Carta Archeologica d＇ltalia--Forma Italiae＂ Project

This paper presents the research method applied to the ＂Archaeological Map of Italy--Forma Italiae＂ project, comprising to date the Ager Venusinus project （completed） and the Ager Lucerinus project （ongoing）. The idea of an Archaeological Map of Italy dates back to 1889 when by Royal degree the ＂Bureau for an Archeological Map of Italy＂ was created. Many decades later, with the advent of information technology and satellite observing systems （GPS） a ＂new era＂ of archaeological mapping began and the ＂Forma ltaliae＂, thanks to these technological developments, began to develop the first Territorial Information System of archaeological matter in Italy. Between 1989 and 1992, studies and experiments were carried out on automatic systems for the acquisition, calculation and management of archaeological data relating to the Carta Archeologica d＇Italia （Forma Italiae）. Our project sought to put together many experiences, including some from the past, as part of a ministerial initiative resulting in the establishment of a committee; furthermore, it sought to extend the discussion that for many years concerned primarily academic institutions to the sectors dealing with protection and archeological prevention. Though it has been designed for prevention and protection, it simultaneously serves as the basic instrument for understanding and enhancement of the cultural resources of the territory. In discussions about preventive archaeology and about the so-called ＂archaeological risk＂, it is very useful to create a databank of the known archaeological heritage. For this purpose, a computerized system for data management was used, composed of a GIS platform associated with an alphanumeric archive and designed soon to become a web GIS.

MR-CLOPE: A Map Reduce based transactional clustering algorithm for DNS query log analysis

DNS(domain name system) query log analysis has been a popular research topic in recent years. CLOPE, the represented transactional clustering algorithm, could be readily used for DNS query log mining. However, the algorithm is inefficient when processing large scale data. The MR-CLOPE algorithm is proposed, which is an extension and improvement on CLOPE based on Map Reduce. Different from the previous parallel clustering method, a two-stage Map Reduce implementation framework is proposed. Each of the stage is implemented by one kind Map Reduce task. In the first stage, the DNS query logs are divided into multiple splits and the CLOPE algorithm is executed on each split. The second stage usually tends to iterate many times to merge the small clusters into bigger satisfactory ones. In these two stages, a novel partition process is designed to randomly spread out original sub clusters, which will be moved and merged in the map phrase of the second phase according to the defined merge criteria. In such way, the advantage of the original CLOPE algorithm is kept and its disadvantages are dealt with in the proposed framework to achieve more excellent clustering performance. The experiment results show that MR-CLOPE is not only faster but also has better clustering quality on DNS query logs compared with CLOPE.

A Probe Into CLT Pedagogical Implications for English Majors in China's Mainland： A Holistic Educational Paradigm

Notwithstanding the tremendous progress of foreign language teaching （FLT） and foreign language education （FLE） in China's Mainland, there still remain large-scale margins as reflective argumentation on the issue of methodology, pedagogy, and educational paradigm to probe into. Among each respective margin concerning this FLT and FLE, this paper deepens the aspects of methodological approach of communicative language teaching （CLT） and holistic educational paradigm. Furthermore, this paper elaborates the current dominant teaching status and makes discussion on the topic of harmony between English teaching and using, taking Basic English course for English majors in China's Mainland as the case study.

Application of Digital Image Correlation and Geodetic Displacement Measuring Methods to Monitor Water Dam Behavior under Dynamic Load

This paper presents experiment results of the measurement conducted at the Roznew Dam power plant. For a course of starting and operating of turbo-plants, downstream face of the dam was monitored in relation to its eventual displacements on direction parallel to the construction axis. For the purpose of the experiment, geodetic measurement techniques and 2D DIC （digital image correlation） method （utilizing photographs of the object recorded with digital camera） were compared with regard to credibility, efficiency and accuracy. The vertical and horizontal displacements were monitored by tachometers measurements. The deformations in x-axis and y-axis on the wall surface was monitored by 2D DIC. It has been noticed that 2D DIC method is a surface method, continuous--not discreet. It allows for continuous observations of surface deformations, which is not possible in case of tachemetric measurements. Despite many advantages, the 2D DIC method lacks unambiguous evaluation of precision and relevance of designated displacements, which is rather significant for possibilities of utilization in technical control of large engineered objects. It should be also marked that the tachometric method is more reliable but is more laborious. Research of this type might comprise additional element for the assessment of the influence of dynamic loads, such as activating turbine water flow, onto the overall condition of the surveyed structure.

Cultural and Economic Maps Within the Italian Agricultural Landscape

The paper situates itself within a Ph.D. research investigating the relationship between food cultural habits and the built environment, aiming to understand how thinking on sustainable food production and distribution can help deal in a new way with urban sustainability by considering the cultural principles connected to the Slow Food philosophy. The paper investigates the activities of a small group of Italian wine producers and farmers within the agricultural landscape around Piacenza, and the way they influence the transformation of local urban and rural environments through either the application of the principles promoted by the Slow Food organization, or the creation of alternative “unofficial” strategies. Through the analysis of documents relating to the past and present history of the agricultural territory around Piacenza and its material culture, the presented study aims to understand how historically consolidated contexts are physically transformed through food culture. Considering historical and economic works on the Italian agricultural landscape, the paper stresses the dichotomy between consolidated cultural practices acting on a historically traditional landscape, and the innovation coming from the subversion of those practices, by visualizing them through a qualitative-quantitative gastronomic map of the local territory.

The plight and Countermeasures brought to the constructions of library literature by effect of college enrollment

This text introduces the concept of local literature and collection range, explains the significance of literature collection and explores building programs of local university library. Currently, university library generally put a strong emphasis on collection of academic literature, but has less attention on literature collections which reflect the situation of university location, or even worse, simply don＇ t launch business in this field. For the university library, it is a great loss of literature information resources, as well as a great regret of library work. First, what is the local literature？ It is literature data which document a region＇ s past and present issues like politics, economy, culture, education, history, geography and other aspects like important characters and events, customs, folklore etc.

Biosecurity Practices and Geospatial Map of Ontario Backyard Poultry Flocks

The CFO （Chicken Farmers of Ontario） has taken important steps to increase biosecurity practices within backyard poultry flocks in order to thwart infectious diseases. The present study originally intended to describe biosecurity practices within this milieu, so as to determine their nearest neighbor and density, as well as the average distance between backyard and commercial broiler flocks. To that effect, paper questionnaire and survey interviews were used （May-July, 2011）, while backyard and commercial broiler chicken flocks were geocoded. The response rates collected from the study produced these findings regarding： growers＇ health practices toward flocks, hygienic precautions relative to the production area, regularity of bird inspection and cleaning after each folk, protocol used to dispose of dead birds, mixing （or lack thereof） of flocks with other livestock, as well as the average distance between small flocks and commercial farms. The study concludes that education material should focus on improving the growers＇ understanding of issues examined in the study, focusing on areas of weakness in respect to biosecurity practices.

Intra-individual comparison of different gadolinium-based contrast agents in the quantitative evaluation of C6 glioma with dynamic contrast-enhanced magnetic resonance imaging

This experiment aimed to compare the ionic （Gadodiamide, Gd-DTPA-BMA） and non-ionic （Gadopentetate dimeglumine, Gd-DTPA） gadolinium-based contrast agents （GBCA） in the quantitative evaluation of C6 glioma with dynamic contrast-enhanced magnetic resonance imaging （DCE-MRI）. A C6 glioma model was established in 12 Wistar rats, and magnetic resonance （MR） scans were performed six days after tumor implantation. Imaging was performed using a 3.0-T MR scanner with a 7-inch handmade circular coil. Pre-contrast T1 mapping and dynamic contrast-enhanced T1WI after a bolus injection （0.2 mL s 1） of GBCA at 0.4 mmol kg-1 were performed. Each rat received two DCE-MRI scans, 24 h apart. The first and second scans were performed using Gd-DTPA-BMA and Gd-DTPA, respectively. Image data were processed using the Patlak model. Both Kns and Vp maps were generated. Tumors were manually segmented on all 3D K and Vp maps. Pixel counts and mean values were recorded for use in a paired t-test. Three radiologists independently performed the tumor segmentation and value calculation. The agreements from different observers were subjective to the intra-class correlation coefficient （ICC）. Readers demonstrated that the pixel counts of tumors in/Crns maps were higher with Gd-DTPA-BMA than with Gd-DTPA （P〈0.001, all readers）. Although the/（r,,s values were higher with Gd-DTPA-BMA than with Gd-DTPA, there was no statistical significance （P〉0.05, all readers）. The pixel counts of tumors in Vp maps, as well as Vp values, showed no obvious difference between the two agents （P〉0.05, all readers）. Excellent interobserver measurement reproducibility and reliability were demonstrated in the ICC tests. The Gd-DTPA-BMA contrast agent had significantly higher pixel counts of glioma in the maps, and an increased tendency for average/Us values, indicating that DCE-MRI with Gd-DTPA-BMA may be more suitable and sensitive for the evaluation of glioma.

Opening time and filling pattern of the Neoproterozoic Kangdian Rift Basin,western Yangtze Continent,South China

The Neoproterozoic Kangdian Rift Basin is a continental rift basin in the western Yangtze Continent.Determining its time of opening and subsequent filling pattern is an important aspect of understanding the formation and evolution of the Yangtze Continent,South China.The Luliang Formation is the early filling in the eastern part of this rift basin,and its deposition age and filling sequence are significant for studies of the regional stratigraphic correlation,opening time,and filling pattern of this basin.Having been correlated to the upper part of the Mesoproterozoic Kunyang Group or to the Neoproterozoic Chengjiang Formation,the age and regional stratigraphic correlation of the Luliang Formation have long been uncertain.This is due to a lack of reliable absolute age constraints.To address this issue,the first zircon SHRIMP U-Pb geochronology has been established for this formation,yielding two high-precision isotopic ages of 818.6±9.2 and 805±14 Ma for the tuff layers at the bottoms of the lower and upper members of the Luliang Formation,respectively.Given the error factor,the bottom age of the lower member of the Luliang Formation can be interpreted as ca.820 Ma,corresponding to the bottom age of the lower part of the Banxi Group,which is the early filling of the Neoproterozoic Xianggui Rift Basin,a representative basin of the Neoproterozoic rift basins in the Yangtze Continent,South China.The bottom age of the upper member of the Luliang Formation can be interpreted as ca.800±5 Ma,corresponding to the bottom age of the Chengjiang Formation in the western part of the Neoproterozoic Kangdian Rift Basin and also corresponding to the bottom age of the upper part of the Banxi Group in the Neoproterozoic Xianggui Rift Basin.These ages indicate that the Neoproterozoic Kangdian Rift Basin shares the same opening time and filling sequences as those of the other Neoproterozoic rift basins in South China.Basin analysis shows that the Neoproterozoic Kangdian Rift Basin is a typical half-graben basin,with its main boundary fault in the west and basin center in the east.This basin consisted of mini unidirectional half-graben basins in its juvenile stage and simplified to become a large united half-graben basin in its mature stage,i.e.,a supradetachment basin.