广州中海达卫星导航技术股份有限公司成功上市

2011年2月15日,广州中海达卫星导航技术股份有限公司在深交所挂牌上市,股票代码300177。广州中海达卫星导航技术股份有限公司成立于1999年,目前在国内拥有30多家分支机构,营销服务网络遍布全国各地及海外。在国产品牌市场上,中海达的市场占有率超过1／3,业绩增长连续多年保持30％以上,是国内GNSS行业当之无愧的领头羊。     

“一张图”概念下的二三维一体化GIS共享

二三维一体化技术是超图软件在2009年正式向全行业推出的新一代GIS技术,它将GIS中的2维空间数据与3维空间数据整合在一个平台下,打破了以前3维GIS系统相对于2维GIS系统在数据、功能、结构上需要另起炉灶的弊端。这样,用户建设一套系统,就可以同时拥有2维和3维两种应用形式。     

《内蒙古气象》征稿简则

《内蒙古气象》主要刊登气象科技领域的综合评述及研究论文,包括:天气、气候诊断分析与预测;气象业务技术经验及业务现代化建设;人工影响天气的有关技术;气象灾害的发生、发展规律及防灾减灾决策;专业气象服务技术方法;气象科技信息动态等。1来稿要求1.1来稿务必论点明确,论据充分,数据可靠,文字通顺精炼。每篇论文(含图表)一般不超过5000字。     

Eco-environmental spatial characteristics of Fildes Peninsula based on TuPu models

This study applies a TuPu analysis to investigate ecological and environmental aspects of an Antarctic ice-free area, using Fildes Peninsula as an example. The TuPu unit was determined using a vector-grid mixed data model. Information from the eco-environment elements was effectively extracted, and was generalized into different classes by means of data mining technol- ogy. A series of single-factor thematic information TuPu models, such as topography, soil, animal and vegetation, and human activities for Fildes Peninsula were built in this study. The topography TuPu model contained information on elevation and slope. The soil TuPu model involved soil development stages and soil thickness information. The animal and vegetation TuPu model contained the distribution of animals, plant types, lichen cover and lichen height. The human activities TuPu model included popu- lation density and human disturbance index information. The landscape comprehensive information TuPu model of Fildes Penin- sula also was established, and contains twenty-nine landscape units and twelve types of combined environments. The study quan- titatively revealed the spatial morphology and correlation of the regional eco-environment based on the analysis of these TuPu models. From these models, we can draw the conclusion that there is a regular differentiation of eco-environment from the coastal bands to the central hills in Fildes Peninsula, and that the eco-environment condition of the eastern coasts is different from that of the western coasts. The eco-environmental spatial variation also differs greatly from north to south. Based on analysis of spatial correlation, the vegetation in Fildes Peninsula has the greatest correlation with human activity, and has a certain correlation with topography and soil. This research may provide a new technical approach and scientific basis for the in-depth study of Antarctic eco-environments.     

Preliminary investigations on Arctic microalgae by joint aDDlication of fluorescent instruments

In vivo fluorescence has a wide application in analyzing microalgae, including assessing phytoplankton biomass, rates of primary production and physiological status. This study describes a preliminary investigation on the joint application of the three kinds of fluorescence analysis in the physiological study of microalgae. Flow cytometry and fluorescence spectrometry were used to obtain the in vivo static fluorescence information of pigments, and a Pulsed-Amplitude-Modulation chlorophyll fluorometer was used to detect the dynamic fluorescence of chlorophyll. The validity of the joint application was proved by analyzing two labora- tory cultured Arctic microalgae, Pseudo-nitzschia delicatissima （Bacillariophyceae） and Thalassiosira sp. The higher value of minimum fluorescence yield in dark-adapted state （Fo）, actual photochemical efficiency of PSll （ФPSII）, and electron transport rate （ETR） exhibited positive results in a higher cell abundance and chlorophyll a content of P. delicatissima; whereas higher fl-carotene content of Thalassiosira sp. played an important role in the protection of photosynthesis.     

Distribution and abundance of euphausiid larvae and salps during austral summers in Prydz Bay, Antarctica

The distribution and abundance of euphausiid larvae and salps was studied from samples collected in 2002 and 2006 from Prydz Bay, Antarctica.Larvae of Thysanoessa macrura and Euphausia superba were mainly distributed in the north of the continental shelf. T. macrura was more abundant and had a relatively wider distribution. In 2006, with ice having retreated and higher seawater temperatures and chlorophyll a levels, E. superba and T. macrura occurred in higher abundances and at more mature developmental stages. Euphausia crystallorophias was mainly distributed in the neritic region. In 2002, with severe ice conditions in the neritic region, abundance of E. crystallorophias was consisted of metanauplius (MN) and calyptopis I (CI). Salps, mostly Salpa thompsoni, had a low abundance in Prydz Bay. In 2002, S. thompsoni was only m)-3. In 2006, S. thompsoni was found at three stations located near the contimental factors, such as the timing of ice melt, polynya formation and food concentration appear to have a marked effect on the distribution and abundance of euphausiid larvae and salps.     

《广东海洋大学学报》（自然科学）投稿须知

《广东海洋大学学报》是广东海洋大学主办的综合性学术刊物,双月刊,公开发行。其中第1、第3、第4、第6期为自然科学,第2、第5期为社会科学。自然科学主要刊登海洋与水产科学基础理论,海洋环境调查与保护,海洋、水产资源开发与利用,海洋渔业,渔船、渔业机械与仪器,水产增养殖技术,     

要改革不适应生产力发展的上层建筑 吴奕良在建筑设计企业发展战略研讨会上的讲话

改革开放以来,建筑设计行业是与时俱进的,企业发展和产业技术都有进步,综合素质不断提升,企业效益和个人收入也不错。但与工业、交通先进设计企业来比,总感到有些不尽人意,是思想不解放吗？还是生产关系阻碍着生产力的发展,我想两者均有,可能后者多些。从战略发展上考虑,还要进一步解放思想,改革某些不适应生产力发展的上层建筑,才能使建筑设计行业跟上时代,进一步解放生产力,使之又好又快持续发展。     

高等医学院校教材《医学影像技术学》出版发行

由王骏、赵海涛、张益兰、黄小华主编的高等医学院校教材《医学影像技术学》由人民军医出版社出版发行（ISBN：978-7-5091-4967-6）。该书涵盖了医学影像技术学的成像原理、图像信息、影像药物、检查技术、质量控制、安全防护等28个篇章,约100万字、640页,是近20所高等医学院校从事医学影像技术医疗、教学、科研...