浅议房产测绘中核心筒和楼、电梯的分摊处理

针对平时南京市房产测绘工作中核心筒和楼、电梯的认定与分摊经常出现的一些问题进行了分析,比照《房产测量规范》、《房屋面积测算技术规程》和《不动产登记暂行条例》等规范和文件,并借鉴其他地方的房产测绘实施细则,提出了应对这些问题的相应措施和自己的一些看法。     

对GZRS房产测绘系统分摊模式的探讨

结合实际工作对广州市房产面积测算目前使用的GZRS绘图系统的分摊模式进行了详细的分析,说明了只有正确理解各个分摊模式的概念,才能使测量成果质量得到保证。     

共有面积分摊模型的实现方法研究

分析了房产共有面积分摊模型及其现有的实现方法,提出了分摊关系链表,基于该链表实现了共有面积分摊.     

商业房产共用面积分摊模型的研究

针对房产测绘中复杂商业房产分摊数据计算量大、分摊对象不明确易产生纠纷的问题,本文在传统的房产共用面积分摊模型的基础上,提出了改进的共用面积分摊模型。该模型灵活地应用功能区的概念,将功能和用途都不同的套内面积整合在一起,合并成为一个功能区,有效地解决了复杂房产分摊问题,在复杂房产分摊方面较传统模型大大减少了数据计算量,可以更加直观地体现出共用面积的服务对象。     

商品房共有建筑面积多级分摊模型研究

随着城市化进程的加速和房地产行业规模的激增,关于房产测绘时共用面积分摊的问题逐渐凸显。本文针对复杂的多功能房屋共有建筑面积分摊问题,运用现有的房产共有建筑面积分摊模型进行了初步分析。     

房产测绘管理系统中公用建筑面积分摊模型的设计与实现

针对房产测绘管理中的最复杂也是最重要的问题－公用建筑面积分摊，通过分析房屋的功能结构和公用建筑面积的分摊类型，提出了面积分摊的方法，给出了规范化的分摊模型，并且在房产测绘管理系统予以实现。     

基于东塔房产测绘的共有建筑面积分摊方法研究

以广州东塔的房产测绘为例,结合多年从事房产测绘的工作经验,参考国标和广州市地标的共有建筑面积分摊技术规定,探析了科学合理的共有建筑面积分摊方法。     

关于多功能房屋共有建筑面积分摊计算模型的探讨

房产测绘中共有建筑面积的分摊是最基本、最重要也是最为复杂的问题,本文针对复杂多功能房屋共有建筑面积分摊,依据GB/T17986.1-2000《房产测量规范》,通过分析房屋的功能结构和共有建筑面积的分摊级别,提出了共有面积分摊计算的方法及其数学模型,并列举了一个多级分摊的例子进行了详细阐述。     

房产勘丈与面积分摊信息系统研究

针对目前国内房产测绘的现状并结合房产勘丈与面积分摊信息系统，阐述房产勘丈与面积分摊信息系统的特点，对系统的设计目标与原则、功能和数据库设计等进行分析，并且对系统设计中的若干关键技术问题进行分析并提出解决方案。     

房产测绘面积快速分摊算法研究及系统开发

介绍了利用AutoCAD平台和VBA、Lisp及Visual Basic 6.0开发语言,开发房产测量面积分摊计算系统的技术、原理及方法,利用该系统可快速、高效并系统性地完成房产测量面积分摊计算,在房产测量中具有较高的应用价值。     

Pinpointing the sources and measuring the lengths of the principal rivers of the world

Abstract

Cultures throughout the world are associating with the rivers. People depend upon the rivers and their tributaries for food, water, transport, and many other aspects of their daily lives. Unfortunately, human beings have not calculated the accurate lengths for the great rivers even today. The lengths of the rivers are very different in popular textbooks, magazines, atlases and encyclopedias, etc. To accurately determine the lengths of the principal rivers of the world, the combination of satellite image analysis and field investigations to the source regions is proposed in this paper. The lengths of the Nile, Amazon, Yangtze, Mississippi, Yellow, Ob, Yenisey, Amur, Congo and Mekong, with lengths over or close to 5000 km, were calculated using the proposed method. The results may represent the most reliable and accurate lengths of the principal rivers of the world that are currently achievable.     

世纪之交的沉思--论21世纪软科学的发展

软科学这一术语是70年代在国外提出的.然而30多年以来,它在国外不仅未得到普遍的承认,而且对软科学的定义也还未能达成大体上一致的共识.而在改革开放后的中国,出于决策科学化和民主化的需要,经过一些领导人的提倡和支持,特别是通过1986年召开的软科学座谈会及1994年召开的全国软科学工作会议,软科学事业得到了蓬勃的发展.据初步统计,截止1998年底全国共有软科学研究机构1224个,研究人员32655人,初步形成了一支较为强大的研究队伍,并取得了数百项覆盖多个领域的研究成果,为支持各级各类的决策发挥了一定的作用.     

Improving the modeling of the atmospheric delay in the data analysis of the Intensive VLBI sessions and the impact on the UT1 estimates

The very long baseline interferometry (VLBI) Intensive sessions are typically 1-h and single-baseline VLBI sessions, specifically designed to yield low-latency estimates of UT1-UTC. In this work, we investigate what accuracy is obtained from these sessions and how it can be improved. In particular, we study the modeling of the troposphere in the data analysis. The impact of including external information on the zenith wet delays (ZWD) and tropospheric gradients from GPS or numerical weather prediction models is studied. Additionally, we test estimating tropospheric gradients in the data analysis, which is normally not done. To evaluate the results, we compared the UT1-UTC values from the Intensives to those from simultaneous 24-h VLBI session. Furthermore, we calculated length of day (LOD) estimates using the UT1-UTC values from consecutive Intensives and compared these to the LOD estimated by GPS. We find that there is not much benefit in using external ZWD; however, including external information on the gradients improves the agreement with the reference data. If gradients are estimated in the data analysis, and appropriate constraints are applied, the WRMS difference w.r.t. UT1-UTC from 24-h sessions is reduced by 5% and the WRMS difference w.r.t. the LOD from GPS by up to 12%. The best agreement between Intensives and the reference time series is obtained when using both external gradients from GPS and additionally estimating gradients in the data analysis.     

Movements of the protoplanetary superconducting particles in the magnetic field of the Saturn lead to the origin of the rings

In this letter, we are trying to resolve the electromagnetic problem for the movements of the superconducting particles of the protoplanetary cloud in the magnetic field of Saturn. The force of levitation (Meissner-Ochsenfeld phenomenon) is introduced to the field of planetary science for the first time. It is shown from our theoretical analysis that rings of Saturn might have a superconducting origin, and rings might levitate within magnetic equator plane of the planet.     

省直管市（县）体制下建设用地监管技术研究

面向解决省直体制下市（县）建设用地管理业务监管难度大问题,研究建设用地全过程监管关键技术,设计该模式下的监管模式、技术架构、业务模型和数据模型,实现省直管市（县）模式下的建设用地批前、批中、批后＂批-供-用-补-查-登＂全过程监管。     

GPS整周模糊度确认中残差二次型次小与最小之差的分布问题

根据残差二次型次小与最小之差进行整周模糊度确认的关键是差值的分布,只有得到了合理的差值分布才可确定合理的界值.文中基于原有的两种方法及这两种方法的不足,从理论上导出了满足条件的差值分布,并作了一定的说明.