地理科学(师范类)专业学生社会适应性研究

调研表明，近年来地理科学（师范类）专业学生在学科知识、计算机技术、教育理念等方面能较好适应中学地理教育发展的需要，但在教学实践、研究、应变、创新能力及文化素养等方面，存在较大差距．高校地理科学（师范类）专业课程教学要进一步解放思想，改革课程结构、模式，加强实践、创新性教学，全面提升教师素质，密切关注市场需求，促进学生社会适应性的不断提高．     

加强实践性教学的几点思考

在国家教委颁布的高等师范专科学校培养方案中，对实践性教学提出了明确的要求，强调“理论与实践相统一，知识与能力相统一，师德与师能相统一”，要求培养目标必须具有扎实的基础理论、基本知识和基本技能，并在课程设置、课时分配、课外活动、教育实践和社会实践等方面做了明确规定，是高校加强实践性教学的理论与政策依据。一、实践教学是高师地理教学的重要环节在高等师范专科学校的教学活动中，实践性教学占有相当大的比重，地理专业尤其如此。与其他专业相比，地理专业的实践性教学具有以下三个突出特点。第一，形式多样，综合性强。…     

自然地理实践教学内容和方法的改革

自然地理实践教学是地理科学专业教学中重要组成部分，是一个相对独立的教学过程．本文试从素质教育和学分制教学管理的要求出发，结合自然地理学学科特点与发展情况，对现行自然地理实践教学内容、教学模式进行了分析，对课程实践教学内容和方法的改革问题进行了思考，目的是通过课程建设，提高学生地理专业素质．     

大学地理情景教学仿真实践系统应用研究

阐述了当前大学地理实践教学存在的主要问题,研究基于虚拟现实技术的适用于高校地理专业"虚拟"实践情景教学环境发展理论的教学手段;同时探讨构建一个集地理空间信息采集、应用、模拟于一体的地理学情景仿真实践教学技术体系,为大学地理情景仿真实践教学研究开拓新思路,进一步提升地理学专业的办学能力和水平,为国家基础科学研究培养高素质...     

浅析动画专业实践教学的重要性

随着高校人才培养模式转变的今天，即由“复合型人才培养模式”向“应用型人才培养模式”的转变，实践教学在高等教育中的地位和作用日益凸现，它促使高校的人才培养与社会、企业的实际需求联系的越来越密切。一个学校、一个专业教育质量的高与否，实践性教学成为衡量其重要指标之一。动画专业由于其拳身的特殊性质．实践教学在该专业中显得尤为重要。     

高校虚拟地理综合实践教学系统的整合与设计

论述如何把虚拟现实技术引入高校地理教学,实现地理教学各分支学科实践教学的内容整合与形式整合,从而达到地理各学科知识综合学习,使学生在教学实践活动中能够更直观了解和掌握地理知识,起到地理教育研究性学习的效果。并以流水地貌实验为例,介绍了虚拟现实技术在地貌实验教学中应用原理和方法。论述虚拟实验技术在高校地理实践教学中整合应用对地理实践教学与研究的影响。     

以就业为导向 构建高校实践教学体系

实践教学体系建设是高校专业建设的重要内容，是确保高校人才培养质量的重要途径和手段．是培养高级应用性人才的关键环节。在我国高校扩招的背景下，师资队伍紧张，办学条件参差不齐，实践教学体系建设面临人、财、物资源的紧缺。导致实习实践教学硬件建设滞后、组织落实不到位的情况普遍存在。本文针对这种现象，提出以就业为导向，充分利用社会资源，构建高校实践教学体系。     

国际化财务管理专业实践教学体系的建设

该文针对我国高校财务管理专业实践教学现状，结合国际化财务管理人才的能力和素质要求，分析了实践教学存在的问题，从教学内容．方式，师资和质量评价四个方面提出了促进国际化财务管理专业实践教学体系建设的对策。     

就业导向下高校新闻传播学实践教学的思考

根据当前就业形势对以实践性、应用性为主要特色的新闻传播学专业人才的要求，在分析高校专业实践教学存在的问题的基础上，提出高校新闻传播学专业实践教学应加强新闻传播学专业实践教学的规划，创新实践教学的模式，完善专业实践教学基地的建设。     

地方高校数学类考研教学的理论与实践

提出了考研教学的概念，探讨了地方高校数学类考研教学的理论与实践，包括专业思想教育、考研经验交流、考研信息指导、考研专题讲座、考研学习方法的指导、考研专业课的教学与辅导、报考与调剂、考研老带新计划的实施、考研互助协会的活动等．对地方高校数学类考研的教学模式作了分析．     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

Exciton Seebeck in Molecular Systems

Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with     

Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

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An on-line scaling method for improving scalability of a database cluster

The explosive growth of the Internet and database applications has driven database to be more scalable and available, and able to support on-line scaling without interrupting service. To support more client's queries without downtime and degrading the response time, more nodes have to be scaled up while the database is running. This paper presents the overview of scalable and available database that satisfies the above characteristics. And we propose a novel on-line scaling method. Our method improves the existing on-line scaling method for fast response time and higher throughputs. Our proposed method reduces unnecessary network use, i.e. , we decrease the number of data copy by reusing the backup data. Also, our on-line scaling operation can be processed parallel by selecting adequate nodes as new node. Our performance study shows that our method results in significant reduction in data copy time.     

An improved R-tree based on childnode''s probability

R-Tree is a good structure for spatial searching. But in this indexing structure,either the sequence of nodes in the same level or sequence of traveling these nodes when queries are made is random. Since the possibility that the object appears in different MBR which have the same parents node is different, if we make the subnode who has the most possibility be traveled first, the time cost will be decreased in most of the cases. In some case, the possibility of a point belong to a rectangle will shows direct proportion with the size of the rectangle. But this conclusion is based on an assumption that the objects are symmetrically distributing in the area and this assumption is not always coming into existence. Now we found a more direct parameter to scale the possibility and made a little change on the structure of R-tree, to increase the possibility of founding the satisfying answer in the front sub trees. We names this structure probability based arranged R-tree (PBAR-tree).     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Integrating GIS Web services based on mediating architecture

The geographic information service is enabled by the advancements in general Web service technology and the focused efforts of the OGC in defining XML-based Web GIS service. Based on these models, this paper addresses the issue of services chaining,the process of combining or pipelining results from several interoperable GIS Web Services to create a customized solution. This paper presents a mediated chaining architecture in which a specific service takes responsibility for performing the process that describes a service chain. We designed the Spatial Information Process Language (SIPL) for dynamic modeling and describing the service chain, also a prototype of the Spatial Information Process Execution Engine (SIPEE) is implemented for executing processes written in SIPL. Discussion of measures to improve the functionality and performance of such system will be included.