徕卡RTC360三维激光扫描仪在竣工测量中的应用     

汪晓慧  吴晓培 《测绘通报》2019,(10):150-154,159

徕卡RTC360不仅操作简单、扫描速度快,而且非常智能。可以实时跟踪计算两个连续站点间的相对位置,点云实时预拼接。后期搭配Register360智能拼接软件,点云智能拼接处理,无需人工干预,简单高效。  相似文献   

渤海海峡断面温度结构及流量的季节变化   总被引：3，自引：2，他引：3  

林霄沛  吴德星  鲍献文  江文胜 《中国海洋大学学报(自然科学版)》2002,32(3):355-360

作者采用 POM模式 ,利用从卫星遥感资料反演的风和海表温度 (SST)数据并考虑 M2分潮作用 ,对渤海海域的温度、流场的三维结构进行数值计算。根据数值模式的计算结果 ,重点分析渤海海峡温度结构和水交换的季节变化特征。结果表明风应力和 SST的季节性变化导致渤海海峡的水交换流型、温度结构和流量有明显的季节性变化。  相似文献   

The satellite towns of metropolis guangzhou: Evolution,inherent links with the central city and tendencies —a case study of renhe town     

Xiaopei Yan 《中国地理科学(英文版)》1994,4(1):55-65

This paper focuses on three interrelated aspects of the relationship between the satellite towns (Renhe Town) and the central city of metropolis Guangzhou. The attention is initially paid to the evolution of the satellite towns. Those towns are recognized as industrial ones although different types could be identified since the founding of the People’s Republic of China in 1949. Then the analysis is turned to the inherent links between Renhe and the central city. Although Renhe has absorbed some decentralized industries, the achievements of constructing satellite towns are not considered satisfactory. This is because the decentralized industries have not given an impetus to the economic growth of Renhe, the town has no close links with the central city in the aspects of finance, employment, economy and technology due to the limitation of the traditional administrative institution, and the decentralized workers are commuters taking the mother city as the sleeping place. Thirdly the problems associated with the construction of satellite towns are examined. Guangzhou is experiencing the major restructuring of industrial structure and therefore it is necessary to decentralize some industries to satellite towns. However, the limits from the central city and the satellite towns are influencing industrial decentralization and construction of satellite towns. The solutions and prospects are finally put forward. This paper was funded by the Canadian International Development Agency.  相似文献   

Preparation and Structural Investigation of CuCl2 Graphite Intercalation Compounds     

Bin Xiaobei  Chen Jiazang  Cao Hong  Ma Enbao  Wang Xuehu  Yuan Jizhu 《《地质学报》英文版》2008,82(5):1056-1060

Superfine graphite powder was prepared by ball-milling exfoliated graphite containing anhydrous CuCl2 in planetary ball milling systems. Nano-scale CuCl2 graphite intercalation compounds were synthesized by heating a mixture of anhydrous CuCl2 and graphite nanosheets. Scanning electron microscopy, energy-dispersive X-ray spectroscopy and high-resolution transmission electron microscopy were performed to characterize the microstructures of stage-1 nano-scale CuCl2 graphite intercalation compounds. The structure and components of the domain wall and core in the nano-scale CuCl2 graphite intercalation compounds are described. The results show that the content of CuCl2 in the mixture plays a crucial role in the size of the nano-scale CuCl2 graphite intercalation compound.  相似文献   

城中村非正规住房的形成机理与管治——以深圳市为例     

赵静  闫小培 《地域研究与开发》2012,31(4):86-90

城中村非正规住房在快速城市化地区普遍存在。以深圳市为例,在梳理城中村非正规住房发展演化过程的基础上,探讨快速城市化地区城中村非正规住房的形成机理与管治对策。研究发现,城中村非正规住房的形成与发展是政策力、市场力和社区力相互作用的结果,处于不同发展阶段的非正规住房,各种动力的大小和方向存在差异。在此基础上,提出城中村非正规住房的管治方向与措施。  相似文献   

The Effect of Regional Ocean-Atmosphere Coupling on the Long-term Variability in the Pacific Ocean     

FENG Lin  WU Dexing  LIN Xiaopei  MENG Xiangfeng 《大气科学进展》2010,27(2):393-402

A fully coupled ocean-atmosphere model is applied to highlight the mechanism of the long-term variability (including decadal and longer time scales) in the Pacific Ocean. We are interested in the effect of ocean-atmosphere coupling of different regions during these processes. The control run successfully simulates the Pacific long-term variability, whose leading modes are the Pacific (inter) Decadal Oscillation (PDO) and the North Pacific mode (NPM). Furthermore, three numerical experiments are conducted, s...  相似文献   

关于Schur多项式的不可约性     

李晓培 《广东海洋大学学报》1998,(2)

设m、n是正整数a1,a2,…,an是不同的奇数。本文证明了,当m＞1且n是2的方幂时Schur多项式f(x）=（x-a1）2m（x-a2)2m(x-an)2m+1在有理数域Q上是不可约的,该结果部分地解决了Schur猜想问题。  相似文献   

上海及其周边地区高耸建筑物抗震设计中卓越周期的评价与选择   总被引：3，自引：0，他引：3  

陈孝培  甘德福 《上海国土资源》1997,(1):49-54

根据上海及周边地区地质构造、地震活动的历史和动力参数实测资料,通过分析研究,提出上海地区剪切波和卓越周期的经验计算法。  相似文献   

珠江三角洲乡村城市化的形成机制与调控措施   总被引：8，自引：0，他引：8  

阎小培  刘筱 《热带地理》1998,18(1):7-11

根据数据分析和实地调查，总结了珠江三角洲乡村城市化的特征。即乡村劳动力非农化速度快，非农化具空间分散性，乡村城市化滞后于工业化，以自来而上为主体的城市化；着重分析了乡村城市化的形成机制，认为地理环境是乡村城市化发生的最基本的前提，由农业生产的推动力和乡镇企业产生的吸引力构成的动力结构是乡村城市化发生的关键，而对外开放则是乡村城市化发生的最重要的外部因素；讨论了乡村城市化过程中存在的问题和矛盾，认为  相似文献   

The South Pacific Subtropical Mode Water in the Tasman Sea     

Hu Haibo  Liu Qinyu  Lin Xiaopei  Liu Wei 《中国海洋大学学报(英文版)》2007,6(2):107-116

From the synopical CTD sections in the WOCE PR11 repeated cruises, the South Pacific Subtropical Mode Water (SPSTMW) has been identified in the region of the Tasman Front Extension (TFE) around 29?S to the east of Australia. In the depth range of 150-250 m, the SPSTMW appears as a thermostad with vertical temperature gradient lower than 1.6℃(100 m)-1 and a tem- perature range of 16.5-19.5℃ and as a pycnostad with PV lower than 2×10-10 m-1 s-1 and a potential density range of 25.4-26.0 kg m-3. Like the subtropical mode waters in the North Atlantic and North Pacific, the formation of the SPSTMW is associated with the convective mixing during the austral wintertime as manifested from the time series of the Argo floats. And cold water entrains into the mixed layer with the deepening mixed layer from September to the middle of October. During the wintertime formation process, mesoscale eddies prevailing in the TFE region play an important role in the SPSTMW formation, and have a great effect on the SPSTMW distribution in the next year. The deeper (shallower) mixed layer in wintertime, consistent with the depressed (uplifted) permanent thermocline, is formed by the anticyclonic (cyclonic) eddies, and the substantial mode water thicker than 50 m is mainly found in the region of the anticyclonic eddies where the permanent thermocline is deeper than 450 m.  相似文献