干扰环境下BPSK接收机跟踪--检测联合性能分析

本文分析了干扰环境中噪声和干扰对接收机的跟踪性能和检测性能的联合影响。主要分析了存在噪声和带内单频干扰情况下BPSK接收机的误码率性能和Costas环的跟踪性能。     

Effects of Transport Regulation on the Oil Market: Does Market Power Matter?

Instruments used to regulate the consumption of oil in the transport sector include fuel taxes, biofuel requirements, and fuel‐efficiency standards. However, the effects that these have on oil consumption and price vary. If market power is present in the oil market, the directions of change in consumption and price might contrast with those in a competitive market. As a result, the market structure affects not only the effectiveness of the policy instruments used to reduce oil consumption, but also the terms of trade and carbon leakage. In particular, reduced oil consumption, as a result of increased fuel‐efficiency standards, will unambiguously increase the price of oil under a monopoly.     

Application of early risk detection concepts and methods to environmental health. A German feasibility study

Early risk detection is essential for being able to address the most important environmental health risk‐topics in a persistent and prospective manner. In support of the action programme “Environment and Health” (APUG) of the German Federal Ministry of Health and Social Security (BMGS) and the Federal Ministry for the Environment, Nature Conservation, and Nuclear Safety (BMU) which recommended that a detection and evaluation system for the timely recognition of emerging risk problems be developed, a qualitative feasibility study was commissioned. The results of this study are presented here and support the development of an early risk detection system based on the insights gained from the investigation of case studies and the differentiation and presentation of a risk typology, methods, tools, and suggested organizational processes.

The study has shown that early risk detection includes the identification, characterization, evaluation and dissemination of information on possible risks as well as the circumstances of appearance and distribution. The goal is the recognition of possible risks in order for risk management to be able to introduce swift and appropriate measures. Consequently, it can also serve as an instrument towards further development of a balanced and structured implementation of the precautionary principle in the environmental health policy.     

非线性模拟量检测的多点定标方法

嵌入式系统和集散控制系统中,待测模拟量一般都是非线性的。为实现非线性模拟量的精确、快速检测,提出了非线性模拟量的多点定标检测方法。分别给出了分段线性化和分段变频率两种定标方法的编程思路,可提高非线性模拟量检测的精度和局部分辨率。     

North–South terms‐of‐trade trends from 1960 to 2006

The composition of exports of developing countries is increasingly dominated by manufactured goods. This has not changed the fact that their major trading partners continue to be the developed countries. In order to properly assess the distribution of gains from trade, there is a pressing need to analyze the movements in the terms of trade of developing countries with respect to the developed ones. A statistical analysis of the North–South terms of trade reveals that the terms of trade have turned against the South since the 1960s. However, the terms‐of‐trade deterioration is neither continuous nor evenly distributed over different country groupings. The existence of a structural break in the mid‐to‐late 1970s together with the greatest adverse terms‐of‐trade movements against the highly indebted and least developed countries attest the discontinuity and unevenness of this process.     

浅谈智能电能表的概念标准化以及检测方法

近年来,随着电力的快速发展,智能电网越来越普遍,而智能电能表是整个智能电网和不可缺少的一环,因此对智能电能表的研究也得到越来越多的关注。目前国际上各个国家对智能电表的定义有所不同,对于智能电表的技术标准和相关的检测方法也没有统一。本文首先对智能电表的概念做出了说明,然后介绍了对智能电能表的标准化,最后说明了智能电能表的检测方法。     

细胞自动机在棋盘格角点检测中的应用

根据细胞自动机组成单元简单，单元之间作用具有局部性的特点。本文将细胞自动机的模型应用到棋盘格的角点检测中，棋盘格模板被广泛的应用在摄像机标定中。使用matlab为工具对模型进行了开发，实验结果表明，该细胞自动机模型是一种简单有效的棋盘格角点检测方法。     

视频智能监控检测道路拥挤度方法

近年来，视频监控系统已经广泛应用于道路交通管控中。本文通过检测移动物体的图像序列估算交通拥挤度。该算法是通过拥挤度估算模型计算单位时间内检测移动物体数量，得到实时的交通信息。本文应用MATLAB实现了这一估算方法，并在实际道路测试验证了该计算方法的可靠性。     

合同默示条款法律分析

合同默示条款制度为英美法系所确立,其目的在于体现当事人订立合同时的真实意思表示,以补充合同漏洞。默示条款的产生有理论依据,其效力与明示条款不同。我国合同法规定了实质上的默示条款。     

基于CPⅢ的无砟轨道检测管理与对策

本文结合目前国内高铁运营维修管理体系尚不健全的现状,针对基于CPⅢ的无砟轨道运营管理现状滞后的原因进行了定性分析,以轨道垂直沉降观测为主线,提出运营管理的三个阶段划分及其目标任务,进一步指出健全管理体制、统一管理标准、保障资金来源是确保无砟轨道运营安全的三个重要方面。