浅议劳动密集型产业的发展

劳动密集型产业的发展对于当前我国这样一个科技落后、建设资金不足而劳动力资源极为丰富的国家来说,具有极为重要的意义。要结合我国经济发展阶段和国情,正确认识发展劳动密集型产业的重要性,充分利用当前我国发展劳动密集型产业的有利条件,切实采取有力措施,促进劳动密集型产业的发展。     

论当前我国劳动密集型产业的发展

我国目前正处于工业化中期,发展劳动密集型产业对促进就业、提高劳动者收入、发挥潜在经济增长力、实现社会稳定等方面都具有重要的意义。我国目前发展劳动密集型产业符合比较优势,但比较优势并不等于竞争优势。当前我国劳动密集型产业仍然存在附加值低、劳动生产率低、企业自身竞争力弱、贸易磨擦频发、价格贸易条件恶化等一系列问题,严重影响了我国外贸的可持续发展。通过对上述问题的剖析,阐述了劳动密集型产业与技术进步、资本技术密集型产业以及国际贸易之间的关系,认为应该实现劳动密集型产业的比较优势向竞争优势的转换,并从不同的角度提出了政府、企业为实现这种转变应采取的措施。     

地理信息产业新型业态发展对策探讨

当前,我国地理信息产业正处在快速发展的关键时期。技术成果不断创新,新型产品不断涌现,社会应用不断拓展,服务业态不断变革,市场环境不断改善,呈现出生机蓬勃的发展局面。一、发展特征当前,我国地理信息产业发展呈现以下五个重要特征。一是需求旺盛。地理信息产业作为朝阳产业,需求十分广泛。     

卷首语

当前,世界正在步入信息时代,信息产业逐步成为世界经济增长的新的驱动力。现代地理信息产业是传统测绘产业的发展方向和归宿,而传统测绘产业则是现代地理信息产业的前身和基础。今后的十五年,是我国加速传统测绘产业向现代地理信息产业全面过渡和转变的重要时期。     

我国地理信息系统产业发展与前景

讨论了地理信息系统产业的主要内涵，我国GIS产业的形成与发展，分析了我国GIS产业总体规模、市场应用、GIS企业与产品的基本情况。认为政府部门仍是我国GIS产业的主要对象，GIS正在融入IT的主流，GIS与其他IT技术分支结合，产生大量新兴的应用，给我国GIS产业带来了新的机遇。     

我国 GIS市场发展概述

中国地理信息系统协会成立的10年,正是我国GIS产业大发展的10年。这与协会对产业发展的推动是密切相关的。协会从成立之初至今,一直把产业发展作为最重要的任务之一紧抓不放。在1994年协会的成立大会上,常务副会长金祥文局长的工作报告题目就是《发挥GIS协会在发展我国地理信息产业中的重大作用》。而后,又召开了一系列围绕产业化的议题会议,对产业的发展起到了积极的推动与指导作用。当前,人们更加关注G1S产业的现状与前景,本文试从讨论GIS市场特点的角度,折射中国GIS产业化的历程。     

城镇化进程应力避“空壳城镇”现象的出现

美国著名经济学家斯蒂格利茨论断：21世纪影响世界进程和改变世界面貌的有两件事。一是美国高科技产业的发展；二是中国的城市化进程。对后一论断，笔者认为不必置疑。目前，我国已有2万多个建制镇和600多个中小城市，如果这些城镇都能充实“市容”，我国经济整体水平和广大农民的生活质量必将会有很大的提高。但值得注意的是，当前     

政府主导下乡村人居环境空间规划探讨

<正>党的十九大提出"乡村振兴"战略,乡村振兴要求产业兴旺、生态宜居、乡风文明、治理有效、生活富裕。十九大报告同时指出当前我国社会主要矛盾已经转化为人民日益增长的美好生活需要和不平衡不充分的发展之间的矛盾。当前我国社会中最大的发展不平衡,是城     

我国地理信息产业标准化的分析与对策研究

我国地理信息产业的迅速发展,对标准化工作提出了新的更高要求。本文阐述了标准化工作对地理信息产业发展的支撑作用,回顾了"十一五"期间我国地理信息标准化的工作进展,以地理信息国家标准及其在研项目的构成情况为基础,针对普遍反映的标准化问题,从标准化工作主体和客体(即:标准制定者及标准本身)的组成和变化的视角进行系统分析,结果表明:我国地理信息国家标准的制定主体仍为标准科研及行业事业单位,企业制定标准的较少;现有地理信息国家标准仍以基础通用和数据资源类标准为主,面向产业发展的应用服务类标准仍然缺乏。分析认为:地理信息产业发展各种标准化问题产生的根源在于当前标准化工作机制不适应产业发展的需要。本文在此基础上,提出了适合地理信息产业健康发展的标准化工作机制设想,以及应采取的对策。     

旅游开发中土地资源的综合利用

土地资源是经济发展最重要的载体,其利用要求按照经济效益、社会效益与生态效益相统一的原则选择产业配置。作为当前我国经济增长的重要方面,旅游业的发展可谓厚积薄发,大到地质、森林公园,小到农家乐、渔家乐,形形色色的旅游开发如火如荼。如何看待这一产业发展中的土地资源利用问题,已成为各级政府为     

Preliminary study on plasma membrane fluidity of Psychrophilic Yeast Rhodotorula sp.NJ298 in low temperature

The ability of cell to modulate the fluidity of plasma membrane was crucial to the survival of microorganism at low temperature. Plasma membrane proteins, fatty acids and carotenoids profiles of Antarctic psychrophilc yeast Rhodotorula sp. NJ298 were investigated at -3 ℃, 0 ℃ and 8 ℃. The results showed that plasma membrane protein content was greater at -3 ℃ than that at 8 ℃, and a unique membrane polypeptide composition with an apparent molecular mass of 94.7 kDa was newly synthesized with SDS-PAGE analysis; GC analysis showed that the main changes of fatty acids were the percentage of unsaturated fatty acids (C18∶ 1 and C18∶ 2) and shorter chain saturated fatty acid (C10∶ 0) increased along with the decrease of the culture temperature from 8 ℃ to -3 ℃; HPLC analysis indicated that astaxanthin was the major functional carotenoids of the plasma membrane, percentage of which increased from 54.6±1.5% at 8 ℃ to 81.9±2.1% at -3 ℃. However the fluidity of plasma membrane which was determined by measuring fluorescence anisotropy was similar at -3 ℃, 0 ℃ and 8 ℃. Hence these changes in plasma membrane's characteristics were involved in the cellular cold-adaptation by which NJ298 could maintain normal plasma membrane fluidity at near-freezing temperature.     

Information for authors

正1 Aims and Scope Advances in Polar Science(APS)is an international,peer-reviewed journal jointly sponsored by the Polar Research Institute of China and the Chinese Arctic and Antarctic Administration.APS is a comprehensive academic journal dedicated to presentation of multi-disciplinary achievements in Arctic and Antarctic expeditions and research.Its primary purpose     

JOURNAL OF OCEAN UNIVERSITY OF CHINA

<正>Copyright Submfnion of a roanusatpt inks:that the work described has not been published before(exoept In the form of an abstrW or as part of a published lecture,review,or thesis);that it is not under consideration for publication elsewhere that its publication has been approved by ail     

Information for Authors

<正>The Journal of Ocean University of China(Oceanic and Coastal Sea Research)is a comprehensive academic quarterly sponsored by the Ocean University of China,published one volume per year.This journal is devoted to the publication of the theoretical and applied research results on oceanography and marine fisheries.The fieldcovered include the physical,chemical,biological,geo-     

Hydraulics and Hydrology in Mountain Areas

<正>The 35th IAHR World Congress was held in Chengdu,China from September 8 to September 132013.The title of the conference was:"The Wise Finds Pleasure in Water:Meandering through Water Science and Engineering".During the congress,1239 papers were presented in 139sessions for oral presentations and 7 sessions for poster presentations.After the Congress,a Committee was appointed to select some of the best papers presented at the Congress for publication,after a     

Sea ice thickness measurement in spring season in Bothnian Bay using an electromagnetic induction instrument

As an important component of the cryosphere,sea ice is very sensitive to the climate change.The study of the sea ice physics needs accurate sea ice thickness.This paper presents an electromagnetic-induction(EM) technique which can be used to measure the sea ice thickness distribution efficiently,and the successful application in Bothnian Bay.Based on the electromagnetic field theory and the electrical properties of sea ice and seawater,EM technique can detect the distance between the instrument and the ice/water interface accurately,than the sea ice thickness is obtained.Contrastive analysis of the apparent conductivity data obtained by EM and the value of drill-hole at same positions allows a construction of a transformable formula of the apparent conductivity to sea ice thickness.The verification of the sea ice thickness calculated by this formula indicates that EM technique is able to get reliable sea ice thickness with average relative error of only 12%.The statistic of all ice thickness profiles shows that the level ice distribution in Bothnian Bay was 0.4-0.6 m.     

Thermohaline structure inhomogeneity associated with polynia at the northern margin of Emery Ice-shelf

Based on the hydrographic data in austral summer during the 22nd Antarctic Expedition of China(2005/2006),some features can be found about the northern margin of Emery ice shelf as follows.The heat content in the surface layer(0-50 m) at the eastern end and the western end of the ice-shelf margin is much higher than that at the middle.The upper mixing-layer depth and the seasonal thermocline depth at the middle of the ice-shelf northern margin are much shallower than those at the both ends.However there is much less difference between the middle and the ends in the bottom layer.The remote sensing photos show that the inhomogeneity in the surface-layer water is closely related to the spatial distribution of the floes and polynia in the area.     

Phylogenetic analysis of cultivable bacteria isolated from Arctic sea-ice

Phylogenetic analysis based on 16S rDNA of 8 strains of cultivable bacteria isolated from Arctic sea-ice was studied.The results showed that strain BJ1 belonged to genus Planococcus,which was a genus of low mole percent G C gram-positive bacteria;strain BJ6 belonged to genus Burkholderia of β-proteobacteria and the rest 6 strain all belonged to γ-proteobacteria,of which strain BJ8 was a species of Pseudoalteromonas,strain BJ2-BJ5 and BJ7 were members of genus Psychrobacter.Phylogenetic analysis also indicated that bacteria of genus Psychrobacter of the isolates formed a relatively independent phylogenetic cluster in comparison with other bacteria belonged to genus Psychrobacter.     

Foreword

正Rapid changes of Arctic sea ice cover have been in the focus of the international climate research community in recent years.Quite a few of nations have completed a large number of related surveys and research projects in the Arctic Ocean.Up to now,China has performed six research cruises to the Arctic Ocean resulting in a significant volume of research output.Improved knowledge on the atmospheree-sea ice-ocean interactions in the Arctic is a