环境规制、土地资源错配与环境污染

文章以2013—2018年中国267个地级及以上城市为研究对象,实证研究了土地资源错配与环境污染之间的关系以及环境规制在土地资源错配和环境污染之间的调节作用。结果表明:土地资源错配与环境污染呈显著正相关关系,即土地资源错配会造成环境污染,且环境规制在土地资源错配和环境污染之间具有抑制作用。异质性分析中,运用地理加权回归模型,按照土地资源错配对环境的污染程度对城市分类,与中度污染组相比,环境规制对重度污染组的土地资源错配和环境污染之间的抑制作用更加显著;按照全国资源型城市分类,与成长型城市和衰退型城市组相比,环境规制的抑制作用在成熟型城市和再生型城市组更明显。     

通用航空助飞\

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乌尔里希·贝克技术风险思想探析

网络平台责任制度是法律为了实现一定的互联网规制目的,对网络平台\     

国家规制与宗教组织的发展中国佛教的政教关系史的制度分析

政教关系是中国宗教的重要议题。本文基于佛教史的内容,从历史比较的角度梳理了围绕着佛教僧团制度建设与组织发展的有关问题,藉由僧团戒律与度牒制度之间的某种对立与比较,认为戒律作为一种组织和认同机制,体现了僧团自治的努力;通过对中华帝国的传统的宗教治理策略之一的度牒制的原由、作用及本质的分析,认为这一规制措施在本质上体现了政治凌驾于宗教之上的权威地位,但却在实施过程中成为寻租和逐利的工具。通过历史经验的比较,认为宗教组织的纪律、原则等有可能成为社会组织化的机制,指出政教关系的基点在于宗教组织的自治特性与能力,这应当成为国家的宗教治理的前提。     

从法令规制的角度看日本文化遗产的保护及利用——二战前日本文化财保护制度的成立

通过简要回顾日本文化遗产保护的历史、相关法令的修改过程,从日本文化财保护制度的发展历程出发,对文化财保护法律的产生背景、主要特征、内容和意义进行初步探讨。阐述了当时文化财保护制度对日本文化遗产保护与利用的积极作用。     

近代北京公立市场的形成与变容过程的研究——以东安市场为例

近代东安市场的成立标志着北京都市商业设施的发展进入了一个新阶段。分析东安市场的形成与变迁过程,对于研究近代北京都市空间的生成及存在形态具有重要意义。文章通过既往研究和历史文献资料的整理分析,在了解东安市场形成过程的基础上,对东安市场的形成发展特点做了初步总结。     

中国商业银行的现状分析

国有商业银行是我国金融体系的主体,但由于长期受计划经济的影响,国有商业银行远远不能适应市场经济,特别是金融全球化发展趋势的需要。作者针对我国四大国有商业银行在机构设置、业务经营、管理手段以及金融创新等方面存在的问题,提出收缩管理半径,减员增效;实行本币与外币业务经营及管理一体化;强化商业银行市场营销;提高金融电子化水平,开展和完善网上银行业务;加强国有商业银行内部风险控制等有效对策,完善网上银行的运行机制,加强国有商业银行的竞争力。     

北京市农业结构调整中的法律问题

针对北京市农业结构调整的特点,本文探讨了农业结构调整与农民的土地承包经营权的冲突、土地用途管制制度对农业结构调整的制约和限制、农业结构调整中的利益关系、合同关系、政府行为规制等法律问题,并在此基础上提出了制定关于农业结构调整地方性法规的立法建议。     

U.S. Aviation Regulations Increase Probability of Midair Collisions

A purely stochastic Monte Carlo model is used to compare the relative midair collision course probabilities and mean closing velocities of four systems of rules for aircraft cruising altitudes as a function of altitude error: (1) current U.S. federal rules, (2) random altitudes, and (3) two proposed alternatives to the current rules. This model increments error while: (1) counting collisions among cruising pairs of aircraft following the four rules being tested on random headings between randomly placed airports, and (2) calculating mean closing velocities for each rule. The calculations verify that: (1) federal rules increase collision course probabilities by about four times more than for a chaotic system of aircraft cruising at randomly selected altitudes, (2) risk is directly proportional to the level of compliance, and (3) mean closing velocities resulting from the current rule are slightly less than for random altitudes, while being almost twice as high as for the proposed rules. High closing velocities are shown to increase the collision probability.     

A New delay control method for real-time flows

This paper presents a novel control algorithm to decrease the worst-case delay bound for high rate homogeneous and heterogeneous real-time flows when the network traffic load becomes heavy. The algorithm is adaptive based on the instantaneous network situations. It employs a generalized form of traditional (σ,ρ) regulator called the generalized (σ,ρ,λ) regulator that operates like the (σ,ρ) regulator under the normal network traffic load situation, but provides more regulations for the heavy network traffic load situation. For a set of real-time flows, we can show that D _rg ≤D _g where D _rg and D _g are the worst-case delay bounds with the (σ,ρ,λ) regulator and the (σ,ρ) regulator respectively. More specifically, we have developed a set of formulas to set the parameters for the new regulator so as to reduce the worst-case delay bounds for the real-time flows. We can prove that there exists a threshold input rate ρ^* such that D _rg = D _g for ρ≤ρ^* and D _rg < D _g for ρ > ρ^*. When the average input rate of real-time flows is very high, the generalized regulator can effectively control the delay. The extensive experiment data match our theoretical results. The part of this paper has been appeared in The 23 ^rd IEEE International Conference on Distributed Computing Systems, 2003. The work is supported by CityU strategic grant Nos: 7001777 and 7001709 and CityU ARP Project No. 9610027. H. Wang was partially supported by National Natural Science Foundation of China (10471088, 60572126) and CityU strategic grant no. 7001709. Wanqing Tu is now with Department of Computer Science, The Hong Kong University of Science and Technology. Clear Water Bay, New Territories, Kowloon, Hong Kong.