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1.
鉴于现行有关面积量算成果检核办法对于解析坐标法面积量算并不完全适应.对现行面积量算限差的制定以及其不完全适合解析法面积量算检核原因等方面进行分析,并针对解析坐标法面积量算检核方法提出了一些完善的处理方法.  相似文献   

2.
以大量的试验为依据,阐述了利用微机辅助进行土地面积图上自动量算的原理、系统构成及功能模块,并较为详细地介绍了量算的方法、步骤,最后与其他几种常规量算方法在量算精度、效率上进行了分析、对比,从而为该技术的推广应用和解决当前土地面积量算的当务之急创造了条件。  相似文献   

3.
土地面积量算与统计系统具有土地面积量算与平差、分类统计与汇总、土地面积查询与更新等功能。本文从系统的数学模型、硬软件构成、工作模式等方面详细阐述了系统的设计思想。  相似文献   

4.
主要阐述运用AutoCAD和南方CASS软件,快速量算征地移民工程中征用地面积的一种新方法。相比以前运用描绘多段线和连接多段线的方法,减少了很多繁琐的流程,提高了面积量算的效率,使面积量算成果直观、准确,便于检查验收,形成了新的征用地面积快速量算工法,易于推广运用。  相似文献   

5.
为实现土地资源管理信息化,在ArcGIS软件平台支持下,利用县级土地利用现状数据库建设乡级土地利用规划数据库,通过分析数据库建设流程和目标,重点阐述图形要素入库、面积量算、专题要素的提炼和非空间数据的处理等过程.结合应用实例,对图形要素入库、面积量算两个关键环节进行说明.结果表明,该方法建设乡级土地利用规划数据库切实可行.  相似文献   

6.
随着东莞市政府提出的“一年一大步,五年见新城”,东莞市现在的基础设施、工业园建设等已进入了高速发展的阶段,这些大型项目的建设,都牵涉到征地赔偿,而地类面积量算又是征地赔偿中重要环节,面积量算的准确性直接影响到政府的预算和当地农民的利益,量算的速度直接影响到工程的进展,所以目前迫切需要寻求一种既快速又准确的方法来进行地类的分类面积量算。  相似文献   

7.
土地面积量算是土地资源调查的重要组成部分,是取得上地数量资料的关键步骤。外业调绘工作结束后,当各行政界、权属界、地类图斑界线及线状地物均已在面积量算工作底图上表示清楚时,则可以进行面积量算工作。  相似文献   

8.
黄孝付  方利伟  王浩 《科技信息》2011,(29):I0424-I0424,I0410
本文着重讲述了土地分户测量面积量算过程中的方法改进,为以后的土地面积量算提高了工作效率、减轻了劳动强度;是值得大家借鉴学习的。  相似文献   

9.
介绍了在地形图上量算面积的传统方法,重点阐述了一种借助南方CASS软件对林权调查中面积测量的实用方法,并分析了其误差情况.  相似文献   

10.
论坡度量测的理论依据、方法与成果应用   总被引:6,自引:1,他引:6  
本文论述地面坡度的量测依据和分级依据,以及坡度分级面积的量测方法。在地形图上量算图形面积,必须采用经纬网作为图上首级控制网。文中给出经纬网梯形已知理论面积的算例。从贵州全省的坡度分级面积的量测成果看出:南部三个自治州陡坡占较大比重;全省山地面积比重甚高;是国内平坝面积比重最小的省区之一;地面坡度显著地影响到人口密度及耕地垦殖程度。  相似文献   

11.
Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.  相似文献   

12.
何延凌 《科技信息》2008,(4):258-258
Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women's language from these perspectives: pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women's language, more attention should be paid to language use in social context. What's more, the linguistic phenomena in a speaking community can be understood more thoroughly.  相似文献   

13.
理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。  相似文献   

14.
As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.  相似文献   

15.
正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-  相似文献   

16.
We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-  相似文献   

17.
正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that  相似文献   

18.
For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the  相似文献   

19.
<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with  相似文献   

20.
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