测绘工程专业产学结合应用型人才培养模式构建   总被引：2，自引：0，他引：2  

马俊海  周秋生  李秀海 《测绘与空间地理信息》2009,32(5):208-212,218

测绘工程专业应用型人才培养的最终目标,是把学生培养成为具备社会主义现代化需要的德、智、体、美全面发展,基础扎实、知识面宽、能力强、素质高、富有实践能力和创新精神的应用型高级专门人才。围绕这一培养目标,从专业人才培养规格、教育内容和知识体系等方面探讨了测绘工程专业产学结合应用型人才培养模式的构建,分别从理论教学体系和课程设置、实践教学体系和主要实践教学环节设置对人才培养方案进行了设计,指出了应用型人才培养方案的特点。  相似文献   

利用UCD数字航摄影像制作4波段正射影像图     

周晓敏  李旗  严新 《测绘标准化》2009,(2)

正射影像由于信息量大,内容丰富,直观真实,应用范围越来越广泛。不足的是传统摄影技术获得的影像只有3个波段,用于资源调查信息还不够丰富,航空数码相机的出现解决了这一问题,其获取的多波段数码影像得到广泛的推广和应用。详细阐述了利用现有的应用软件对UCD数字航摄影像4波段数据源进行特殊处理,制作4波段正射影像图的方法以及特殊问题的处理技巧。  相似文献   

Denitrification in Qi'ao Island coastal zone, the Zhujiang Estuary in China   总被引：1，自引：0，他引：1  

WANG Hu  ZHOU Huaiyang  PENG Xiaotong  YANG Qunhui  QIN Chaomei  YIN Xijie  CHEN Guangqian 《海洋学报(英文版)》2009,28(1):37-46

Samples of sediments and the overlying water were collected in the Qi'ao Island coastal zone, the Zhujiang (Pearl River) Estuary (ZE). Denitrification rates, sediment oxygen demand (SOD) , and fluxes of inorganic nitrogen compounds were investigated with N2 flux method, using a self-designed continuous flow through and auto-sampling system. The results indicate that the denitrification rates varied between 222 and 908 μmol/(m2·h) with an average of 499 μmol/(m2·h). During incubation, the sediments absorbed dissolved oxygen in the overlying water with SOD ranging from 300 to 2 363 μmol/(m2·h). The denitrification rates were highly correlated with the SOD (r2 =0.77) regardless of the NO3- + NO2- concentrations in the overlying water, organ- ic carbon contents in sediments and water temperature, suggesting that the SOD was probably the main environ-mental factor controlling the denitrification in the Qi'ao Island coastal zone. There was a net flux of NO3- + NO2-into the sediments from the overlying water. The NH4+ flux from sediments into water as the result of mineraliza-tion was between 12. 3 and 210. 3 μmol/(m2·h) ,which seems limited by both organic carbon content in sedi-ment and dissolved oxygen concentration in the overlying water.  相似文献   

A preliminary study of variations of the Changjiang Diluted Water between August of 1999 and 2006     

ZHOU Feng  XUAN Jiliang  NI Xiaobo  HUANG Daji 《海洋学报(英文版)》2009,28(6):1-11

A large area hypoxia has been already reported respectively by two interdisciplinary surveys off the Changjiang Estuary since summer of 1999 and 2006. The hypoxic zone shows distinct year-to-year variations. Observed oceanographic data are first analysized and reveal a big difference for the Changjiang Diluted Water (CDW) between these two periods. These great changes are related to the tremendous reduction of the freshwater discharge and variations of wind fields between these two years. It is also found that the monthly mean intrusion of Kuroshio and its branches has increased in the northern East China Sea (ECS), but decreased in the southern ECS in August of 2006 as compared with 1999 on the base of general circulation models. Then, the Regional Ocean Modelling Systems is applied to the East China Sea to evaluate the contributions and relative importance of impacts from the river discharge, wind forcing and open boundary data. Our simulations reproduce the phenomena that more fresh water extends northeastward in 2006 and forms a negative SSS anomaly to the northeast of the river mouth as compared with 1999, which is consistent with observations. The five group numerical tests suggest that the wind forcing dominates the CDW variations followed by the Kuroshio and its branches. The study implies important roles played by hydrodynamic processes on the variability of hypoxic zone in the study areas.  相似文献   

Perturbed solution of sea-air oscillator for the E1 Ni(n)o/La Ni(n)a-Southern Oscillation mechanism     

ZHOU Xianchun  LIN Yihua  WANG Hui  MO Jiaqi 《海洋学报(英文版)》2009,28(3)

A class of coupled system of the E1 Ni(n)o/La Ni(n)a-Southern Oscillation (ENSO) mechanism is studied. Using the perturbed theory, the asymptotic expansions of the solution for ENSO model are obtained and the asymptotic behavior of solution for corresponding problem is considered.  相似文献   

Adaptive Predictive Inverse Control of Offshore Jacket Platform Based on Rough Neural Network     

崔洪宇  赵德有  周平 《中国海洋工程》2009,23(2):185-198

The offshore jacket platform is a complex and time-varying nonlinear system,which can be excited of harmful vibration by external loads.It is difficult to obtain an ideal control performance for passive control methods or traditional active control methods based on accurate mathematic model.In this paper,an adaptive inverse control method is proposed on the basis of novel rough neural networks (RNN) to control the harmful vibration of the offshore jacket platform,and the offshore jacket platform model is established by dynamic stiffness matrix (DSM) method.Benefited from the nonlinear processing ability of the neural networks and data interpretation ability of the rough set theory,RNN is utilized to identify the predictive inverse model of the offshore jacket platform system.Then the identified model is used as the adaptive predictive inverse controller to control the harmful vibration caused by wave and wind loads,and to deal with the delay problem caused by signal transmission in the control process.The numerical results show that the constructed novel RNN has advantages such as clear structure,fast training speed and strong error-tolerance ability,and the proposed method based on RNN can effectively control the harmfid vibration of the offshore jacket platform.  相似文献   

Development of in-situ Marine Sediment Geo-Acoustic Measurement System with Real-Time and Multi Frequencies （the Second Generation）   总被引：1，自引：0，他引：1  

陶春辉  邓显明  李红星  周建平  金肖兵  傅顺声  Wilkens  R.  H  顾春华  何拥华 《中国海洋工程》2009,23(4):769-778

  相似文献   

Report of Prionospio complex (Annelida: Polychaeta: Spionidae) from China's waters, with description of a new species     

ZHOU Jin  LI Xinzheng 《海洋学报(英文版)》2009,28(1):116-127

Nine species of Prionospio complex are recorded from China’s waters, including one new species and six newly recorded species. Prionospio (Prionospio) pacifica sp. nov., is characterized by having first and forth pairs of branchiae pinnate, second and third pairs of apinnate, ventral crest on Setiger 9 and dorsal crests on Setigers 10—25. Apoprionospio kirrae (Wilson, 1990), Prionospio (Aquilaspio) convexa Imajima, 1990, Prionospio (Minuspio) multibranchiata Berkeley, 1927, Prionospio (Prionospio) bocki Sderstrm, 1920, Prionospio (Prionospio) dubia Maciolek, 1985 and Prionospio (Prionospio) paradisea Imajima, 1990 are recorded for the first time from China’s waters.  相似文献   

南海北部陆坡神狐海域晚中新世以来沉积物中生物组分变化及意义   总被引：5，自引：1，他引：4  

陈芳  苏新  周洋  陆红锋  刘广虎  陈炽新  陈超云 《海洋地质与第四纪地质》2009,(2)

对南海北部陆坡神狐海域4口钻孔(BY1、BY2、BY3、BY4)岩心沉积物中微体古生物的研究表明晚中新世以来该区沉积物中硅质和钙质生物组分丰度具有较大时间和空间变化。从时间上看,硅质生物在晚中新世—上新世几乎缺失,中更新世以来约40万年(0～24m)才较多出现,18万年以后繁盛,大于0.15mm粗粒级有孔虫在晚中新世期间丰度很低,而在更新世—上新世丰度很高;空间上的差异表现在不同的钻井岩心中生物丰度变化范围较大。根据硅质生物丰度变化可推测晚中新世—上新世—早更新世时海水表层古生产力极低,而中更新世以来古生产力相对较高。南海北部钙质生物丰度的变化主要受控于陆源物质的输入量,在钻探区可识别2个可能具有不同物质来源的小区块,如BY1、BY2孔晚中新世—上新世陆源物质的输入量高于更新世,BY3和BY4孔更新世陆源物质的输入量高于上新世。2007年本区钻探结果揭示的一个令人惊奇和十分独特的现象,水合物以高达20%～49%饱和度状态分散在细粒沉积物(黏土粉砂)孔隙中,本研究发现这些矿层富含钙质生物组分(钙质超微化石和有孔虫),而硅质组分贫乏。由此初步推测,大量钙质生物组分的存在可能增加了黏土粉砂沉积物的孔隙空间,从而为大...  相似文献   

海洋毒素大田软海绵酸完全抗原的制备与分析     

卢士英  周玉  任洪林  霍方珍  潘风光  柳增善  于师宇  于光 《海洋科学》2009,33(2):46-49

为了建立大田软海绵酸(Okadaic acid,0A)的免疫学检测方法,利用活泼酯法将OA分子中的羧基与栽体蛋白上的氨基偶联,人工制备OA的免疫抗原(OA-IgG)和检测抗原(OA-BSA),经电泳、动物实验及ELISA法进行了鉴定,完全抗原的偶联成功,为利用杂交瘤技术制备OA的单克隆抗体和海产品OA免疫学检测方法奠定了良好的基础.  相似文献