产业结构变动中的粮食安全研究——江苏的案例

九十年代末 ,江苏产业结构发生很大的变化 ,农业在国民经济中的比重下降较快 ,同时 ,由于经济的快速发展 ,农地日益减少 ,人地矛盾日益尖锐 ,被人们普遍关心的粮食安全问题被提上了议事日程。本文主要分析江苏产业结构调整对粮食生产和粮食安全的影响 ,并探讨江苏在产业结构调整中保证粮食安全的对策。     

建筑工程施工安全管理工作的浅析

目前,我国的建筑行业发展迅速,做好建筑工程项目施工安全管理,能够给项目参与人员生命健康安全与财产安全提供充足保障,避免工程建设质量受到多样化因素影响,保质保量按施工进度安排顺利完成工程建设各项工作。目前,我国一些建筑工程项目仍旧存在着安全管理方面的不足问题,影响了建筑工程安全管理效率和成果,亟待采取有效对策解决这些问题,提升建筑工程安全管理整体水平。     

基于地铁车站安全运营的层级管理科学探究

为了化解城市地铁快速建设所带来的车站运营安全风险,为提高我国地铁车站运营管理水平提供参考,论文以青岛地铁车站运营安全管理模式为研究对象,探讨了体系的搭建、措施的落实、结果的检查、问题的改善等环节的科学管理机制。     

浅析电气工程的质量控制和安全管理

近年来,随着我国社会经济的快速发展,城市化进程随之加快,各行各业的建设规模都有所扩大,尤其是工程建设项目。在工程建设项目中,电气工程的重要性尤为突出。因此,论文着重论述了如何提高电气工程的质量,以及如何对电气工程进行安全管理。     

企业安全风险分析与管控措施研究

随着各行各业的现代化发展,国家对行业生产安全提出了越来越高的标准,无论是哪个行业,在开展生产作业的过程中,都要注重安全风险的分析和管理。安全风险可能会存在于生产经营的各个阶段,且种类繁多。为促进安全生产标准化目标的实现,企业在日常的工作中,应将安全管理与经济效益实现置于同等重要的地位,不断就各种的安全风险,来制定有针对性的安全处理方案和应急预案。     

风险预控管理体系在煤矿安全管理中的作用

当前我国的煤矿行业迈入了转型发展的重要时期,国家对煤矿行业的安全生产管理提出了越来越高的要求,安全生产标准化成为煤矿企业的重点工作。煤矿生产作业的特殊性决定了在各项生产作业中存在各种安全风险,作业流程的繁多性、要素的多样性加大了煤矿安全管理的难度。煤矿行业现代化的发展趋势下,风险预控管理体系的构建为煤矿安全生产目标的实现提供了保障。     

Mongolian nomadic culture and ecological culture: On the ecological reconstruction in the agro-pastoral mosaic zone in Northern China

After analyzing the grassland environmental characteristics and nomads vs. agrarian land use styles and their ecological and environmental influences in the arid and semiarid agro-pastoral mosaic zone in northern China, it was concluded that Mongolian nomadic culture is more close to the basic principles of the ecological culture in the modern sense. Mongolian nomadic culture has advantages over agrarian culture in ecology and environmental care, sustainable utilization of grasslands, and in sustainable human social economic development in the region. Generally speaking nomadic culture prevents desertification; whereas, agrarian culture facilitates desertification. Confliction between nomadic protection and agrarian destruction of grassland ecosystem is essentially focused on the problem of regional and even global ecological safety. Obviously, protection of ecological safety should be given priority because human social and economic existence, as well as development depend on and are decided by the vulnerable ecological safety in the arid and semiarid areas. Therefore expansion of cropping into the fragile ecosystem of arid lands was unfortunate. The long term sustainable management of these grassland ecosystems could benefit from reversal of policies that are exacerbating the problems of land degradation, and from the adoption of land use practices that have been successfully applied for centuries by Mongolian herders. Protection of grasslands and nomadic culture is far more important or even vital to the subsistence and sustainability of human and all other beings, compared to the protection of agrarian lifestyle and land cultivation. Protection of ecologic safety is protecting the premise and fundamental bases of economic and social development in the area. It is important to derive the rational elements of nomadic culture in construction of ecological culture, and in the ecological reconstruction in northern China. Based on analyzing and reasoning in line with the quintessence of nomadic culture summarized, some proposals on ecological reconstruction in the area are presented.     

Modeling Disinterest and Dislike: A Bounded Bayesian Mixed Logit Model of the UK Market for GM Food

Mixed logit models represent a powerful discrete choice analytical model but require assumptions about the functional form of the parameter distributions. The use of unbounded distributions, such as the normal distribution, may be regarded as unsuitable where theory indicates that all are negatively affected by increases in an attribute, such as price. Bounded distributions such as the triangular and log-normal are unable to model the case where a section of the population is indifferent towards an attribute, while the remainder are negatively disposed toward it. Train and Sonnier’s bounded mixed logit model accommodates these features and is employed in this paper. A censored normal and Johnson’s S_b distribution are used to model preferences in the UK for food attributes, including price and GM technology. Bi-modal distributions are identified regarding GM food: some are unlikely to ever consume it, some are close to indifference and willing to consume at relatively small discounts while the remainder are fairly unresponsive to further price reductions.     

基于发展核电的生态经济价值及其伦理思考

发展核电、开发利用核能充满复杂而多层次的价值矛盾，在巨大的生态与经济利益和风险之间．核电对生态环境及人类安全的威胁问题倍受社会各界的关注．并由此引发了一系列价值难题和伦理争论，成为影响核电发展的关键。核电的安全、可持续发展不仅仅是技术问题，还涉及一系列的伦理问题，要保证核电可持续发展并有益于生态环境保护且不损害人类利益，不能犯“技术决定论”的错误．必须辅之以伦理之轨。伦理之轨通过深入核电发展链的各个环节．对核电发展进行伦理价值观的批判和引导．参与战略选择使之得以规约．并保障核电发展有益于人类合的目的性价值得以实现。     

机场净空区超高障碍物风险性分析

针对机场净空区超高障碍物较多的现象,对飞机飞行航迹进行了测试,提出了净空安全系数的概念,结合实际测试数据,应用统计分析原理,得出了净空安全系数的概率分布规律.以安全系数的分布规律为基础,对不同超高障碍物的风险性进行了分析,并提出了按照不同安全系数划分障碍物限制高度的思路,最后给出了不同类型机场净空安全系数的建议值,对各类机场净空管理和障碍物限制面的确定具有重要参考价值.