期刊文献+
共找到10篇文章
< 1 >
每页显示 20 50 100
Coordination Mechanism of the Legal Protection of Resource Security with Its Relative Laws
1
作者 Chen Demin Wang Huabing 《Chinese Journal of Population,Resources and Environment》 北大核心 2008年第3期21-26,共6页
The basis of the legal protection of resource security is its relative laws, which have four main characteristics, which are foundational, divergent, comprehensive and of long-term social benefits in view. The coordin... The basis of the legal protection of resource security is its relative laws, which have four main characteristics, which are foundational, divergent, comprehensive and of long-term social benefits in view. The coordination mechanism of the legal protection of resource security with its relative laws meets the needs of the sustainable development of the economy, society and environment. It also facilitates and is facilitated by the modern transformation of the legal system in China, and upholds the legal system as a logically self-perfecting entity. Furthermore, this coordination bears scientific feasibility. 展开更多
关键词 resource security legal protection relative laws MECHANISM
下载PDF
Analysis on mechanism of land resource security
2
作者 Bao Haijun 《Ecological Economy》 2008年第2期236-242,共7页
This paper prohes into the relationship among individual benefits, benefits of the country. common benefits of all humans in land use and land resource security. The following balanced land use model is proposed: the... This paper prohes into the relationship among individual benefits, benefits of the country. common benefits of all humans in land use and land resource security. The following balanced land use model is proposed: the harmonious and interactive relationship between man and nature, two main bodies of land ecological system, constitutes the mechanism of land resources security; The feedback relationship between man and nature is the basis for the land resources security and the core is the relationship among people established for the benefit equilibrium in land use. The conflicts in land use stem from the rarity of land resource and the solution to those conflicts in harmony helps land resource security. 展开更多
关键词 Man and nature Land use Land resource Land resource security
下载PDF
Analysis of Water Resources Supply and Demand and Security of Water Resources Development in Irrigation Regions of the Middle Reaches of the Heihe River Basin, Northwest China 被引量:11
3
作者 JI Xi-bin KANG Er-si +3 位作者 CHEN Ren-sheng ZHAO Wen-zhi XlAO Sheng-chun JIN Bo-wen 《Agricultural Sciences in China》 CAS CSCD 2006年第2期130-140,共11页
Based on the data for meteorology, hydrology, soil, planting, vegetation, and socio-economic development of the irrigation region in the middle reaches of the Heihe River basin, Northwest China, the model of balance o... Based on the data for meteorology, hydrology, soil, planting, vegetation, and socio-economic development of the irrigation region in the middle reaches of the Heihe River basin, Northwest China, the model of balance of water supply and demand in the region was established, and the security of water resource was assessed, from which the results that the effects of unified management of water resources in the Heihe River basin between Gansu Province and Inner Mongolia on regional hydrology are significant with a decrease in water supply diverted from Heihe River and an increase in groundwater extracted. In addition, it was found that the groundwater level has been steadily decreasing due to over pumping and decrease in recharges. In present year (2003), the volume of potential groundwater in the irrigation districts is far small because of the groundwater overdraft; even in the particular regions, there is no availability of groundwater resources for use. By 2003, water supply is not sufficient to meet the water demand in the different irrigation districts, the sustainable development and utilization of water resources are not secured, and the water supply crisis occurs in Pingchuan irrigation district. Achieving water security for the sustainable development of society, agriculture, economy, industry, and livelihoods while maintaining or improving the abilities of the management and planning of water resources, determining of the reasonable percentage between water supply and groundwater utilization and water saving in agricultural irrigation are taken into account. If this does not occur, it is feared that the present performance of water development and planning may further aggravate the problem of scarcities of water resources and further damage the fragile ecological system. 展开更多
关键词 middle reaches of Heihe River irrigation region water resources supply and demand balance evaluation of the security of water resources
下载PDF
Resource Allocation for Physical Layer Security in Heterogeneous Network with Hidden Eavesdropper 被引量:5
4
作者 GONG Shiqi XING Chengwen +1 位作者 FEI Zesong KUANG Jingming 《China Communications》 SCIE CSCD 2016年第3期82-95,共14页
The tremendous performance gain of heterogeneous networks(Het Nets) is at the cost of complicated resource allocation. Considering information security, the resource allocation for Het Nets becomes much more challengi... The tremendous performance gain of heterogeneous networks(Het Nets) is at the cost of complicated resource allocation. Considering information security, the resource allocation for Het Nets becomes much more challenging and this is the focus of this paper. In this paper, the eavesdropper is hidden from the macro base stations. To relax the unpractical assumption on the channel state information on eavesdropper, a localization based algorithm is first given. Then a joint resource allocation algorithm is proposed in our work, which simultaneously considers physical layer security, cross-tier interference and joint optimization of power and subcarriers under fairness requirements. It is revealed in our work that the considered optimization problem can be efficiently solved relying on convex optimization theory and the Lagrangian dual decomposition method is exploited to solve the considered problem effectively. Moreover, in each iteration the closed-form optimal resource allocation solutions can be obtained based on the Karush-Kuhn-Tucker(KKT) conditions. Finally, the simulation results are given to show the performance advantages of the proposed algorithm. 展开更多
关键词 resource allocation physical layer security heterogeneous networks RSS-based location estimation lagrangian dual decomposition
下载PDF
Dynamic Tracking and Comprehensive Evaluation on the Natural Resources Security Elements and System in China
5
作者 Yao Yulong Zhou Hong 《Chinese Journal of Population,Resources and Environment》 2010年第2期32-39,共8页
System theory,pressure-state-response and drivingpressure-state-impact-response model have been applied to establishing China's dynamic tracking evaluation system of natural resources security in this article.Base... System theory,pressure-state-response and drivingpressure-state-impact-response model have been applied to establishing China's dynamic tracking evaluation system of natural resources security in this article.Based on analytic hierarchy process and Delphi methods,the natural resources security situation has been evaluated systematically from 1991 to 2007.The result showed that the overall level of China's natural resources security presented a downtrend from 1991 to 2007.The basic reasons are the pressure indicators such as population,GDP,natural resources trade increased gradually,resulting in tension and fragility of natural resources security. 展开更多
关键词 natural resources security indicator system dynamic tracking comprehensive evaluation
下载PDF
Study on security and protection of original ecotourism resources in the mountain areas of western Guangxi
6
作者 Wu Lianglin Zhou Yongzhang +2 位作者 Chen Zhishen Ding dian Yan Xiaoping 《Ecological Economy》 2008年第1期41-48,共8页
Original ecotourism resources mainly refer to natural and human original ecotourism resources, and it's of fragility, rarity and irreversibility. As a valuable historic heritage and hnportant tourism resources, it pl... Original ecotourism resources mainly refer to natural and human original ecotourism resources, and it's of fragility, rarity and irreversibility. As a valuable historic heritage and hnportant tourism resources, it plays a significant role in developing tourism and economy in such areas as the underdeveloped areas, the mountain areas and mimority areas. The tourism resources in the western mountain areas of Guangxi owe ,superiorities and characteristics 'o their original ecology, Yet, western Guangxi is an ethnic region with fragile karst eco-environment, so it is specialto exploit the tourism resources. The paper defines original eeotourism and analyses the specialties and advantages of the original ecotourism resources as well as thefrailty of the ecotourism resources of the region. The ways of thinking are put forward for safe preservation and sustainable development of the original ecotourism resources, i.e. carrying out measures for the multi-grade protection of heritage resources, setting up a ethnic eco-museum/ ethnic culture eco-park and a gene pool of ethnic cultures, etc. 展开更多
关键词 Original ecotourism resources Multi-grade natural and cultural heritage Gene pool of ethnic culture resources security Mountain areas of western Guangxi
下载PDF
Historic Achievements in Developing Human Resources and Social Security
7
作者 YIN WEIMIN 《The Journal of Human Rights》 2009年第3期2-4,共3页
Guided by the state policy of reform and opening to the outside world, the Chinese Government has, by dint of hard work over the past three decades, by and large accomplished the task of building up a human resources ... Guided by the state policy of reform and opening to the outside world, the Chinese Government has, by dint of hard work over the past three decades, by and large accomplished the task of building up a human resources and social security system. Good enough to serve China's goal of developing a socialist market economy, this system has contributed to the national endeavor to ensure and improve people's livelihood and to safeguard the stability of the reform-and-opening undertakings. 展开更多
关键词 OVER Historic Achievements in Developing Human resources and Social security
下载PDF
Water Security Situation in Haihe River Basin after South-to-North Water Transfer Project
8
作者 JIA Shaofeng YAN Tingting LÜ Aifeng 《Bulletin of the Chinese Academy of Sciences》 2012年第1期92-98,共7页
The over-exploitation of water resources in the Haihe River Basin (HRB) has now become a serious problem. This is clearly evidenced by the fact that many local rivers and lakes are drying up and the total amount of ... The over-exploitation of water resources in the Haihe River Basin (HRB) has now become a serious problem. This is clearly evidenced by the fact that many local rivers and lakes are drying up and the total amount of over-exploited groundwater has reached over 1000×10^8m^3. It is important to note that the exploitation of water resources in HRB was reasonable before 1979. After 1980, however, over-exploitation happened with an annual average amount of 40×10^8m^3. Both the dry season and rapid economic growth in HRB took place at the same time. Therefore, the over-exploitation of water in HRB was actually the negative result of the conjunction of a continuous dry season and rapid economic growth. So the over-exploitation would not be as serious as it is today if either of the above two stopped. After the first stage of south-to-north water transfer project, the water shortage problem in HRB could be eased for the following reasons: firstly, water transfer project will bring to the Basin 60x108m3 water resources; secondly, a wet season will come back eventually according to natural law of climate variability; finally, its agricultural and industrial use and total water consumption all have decreased from the peak value, so that the groundwater table will raise certainly and ecological water in rivers and lakes that were dried-up will be partly restored. In the future, the main problem of water resources security in HRB will include water pollution, operation risk of the south-to-north water transfer project, groundwater pollution and engineering geological hazards that may be brought by groundwater rise. The proposed countermeasures are as follows: keeping strengthening water demand management, raising water price as well as subsidies for the low- income family and improving other water related policies, preventing and dealing with water pollution seriously and getting fully prepared for the operation of south-to-north water transfer project. 展开更多
关键词 Haihe River Basin south-to-north water transfer project water resource security
下载PDF
Randomized MILP framework for Securing Virtual Machines from Malware Attacks
9
作者 R.Mangalagowri Revathi Venkataraman 《Intelligent Automation & Soft Computing》 SCIE 2023年第2期1565-1580,共16页
Cloud computing involves remote server deployments with public net-work infrastructures that allow clients to access computational resources.Virtual Machines(VMs)are supplied on requests and launched without interacti... Cloud computing involves remote server deployments with public net-work infrastructures that allow clients to access computational resources.Virtual Machines(VMs)are supplied on requests and launched without interactions from service providers.Intruders can target these servers and establish malicious con-nections on VMs for carrying out attacks on other clustered VMs.The existing system has issues with execution time and false-positive rates.Hence,the overall system performance is degraded considerably.The proposed approach is designed to eliminate Cross-VM side attacks and VM escape and hide the server’s position so that the opponent cannot track the target server beyond a certain point.Every request is passed from source to destination via one broadcast domain to confuse the opponent and avoid them from tracking the server’s position.Allocation of SECURITY Resources accepts a safety game in a simple format as input andfinds the best coverage vector for the opponent using a Stackelberg Equilibrium(SSE)technique.A Mixed Integer Linear Programming(MILP)framework is used in the algorithm.The VM challenge is reduced by afirewall-based controlling mechanism combining behavior-based detection and signature-based virus detection.The pro-posed method is focused on detecting malware attacks effectively and providing better security for the VMs.Finally,the experimental results indicate that the pro-posed security method is efficient.It consumes minimum execution time,better false positive rate,accuracy,and memory usage than the conventional approach. 展开更多
关键词 Virtualization technology security cross-VM channel attack VM-escape R-VM-MILP algorithm(randomized VM allocation of security resources) Mixed Integer Linear Programming(MILP) SSE strategy firewall-based monitoring method
下载PDF
地理大数据挖掘——“水-能源-粮食”纽带研究的新机遇 被引量:1
10
作者 杨洁 曹小曙 +3 位作者 姚俊 康喆文 畅建霞 王义民 《Journal of Geographical Sciences》 SCIE CSCD 2024年第2期203-228,共26页
Since the Bonn 2011 conference,the“water-energy-food”(WEF)nexus has aroused global concern to promote sustainable development.The WEF nexus is a complex,dynamic,and open system containing interrelated and interdepen... Since the Bonn 2011 conference,the“water-energy-food”(WEF)nexus has aroused global concern to promote sustainable development.The WEF nexus is a complex,dynamic,and open system containing interrelated and interdependent elements.However,the nexus studies have mainly focused on natural elements based on massive earth observation data.Human elements(e.g.,society,economy,politics,culture)are described insufficiently,because traditional earth observation technologies cannot effectively perceive socioeconomic characteristics,especially human feelings,emotions,and experiences.Thus,it is difficult to simulate the complex WEF nexus.With the development of earth observation sensor technologies and human activity perception methods,geographical big data covering both human activities and natural elements offers a new opportunity for in-depth WEF nexus analysis.This study proposes a five-step framework by leveraging geographical big data mining to dig for the hidden value in the data of various natural and human elements.This framework can enable a thorough and comprehensive analysis of the WEF nexus.Some application examples of the framework,major challenges,and possible solutions are discussed.Geographical big data mining is a promising approach to enhance the analysis of the WEF nexus,strengthen the coordinated management of resources and sectors,and facilitate the progress toward sustainable development. 展开更多
关键词 geographical big data data mining “water-energy-food”nexus interaction mechanisms SUSTAINABILITY resources security
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部