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。     

斜拉桥检测技术的几点探讨

斜拉桥检测技术作为结构安全保证的有效手段,在实际工程中已广泛应用。斜拉桥检测技术的几项重要方法:索力检测、索塔塔顶位移的检测、结构仿真计算等等,对于能否了解的工作状态,有很大的影响。为提高斜拉桥检测的可靠性和精确度,扩大其应用范围,论文总结了一些实际经验,,提出几点看法,,供有关人员参考,为进一步推广应用斜拉桥检测技术的提供依据。     

Effect of personality on fraud detection： The Malaysian case

Auditing standards require external auditors to provide reasonable assurance that the financial statements are free from material misstatements, either due to fraud or error. Inability of the external auditors to detect the material misstatements, particularly fraud, may expose them to litigation. The present study aims to examine the effect of personality factors （i.e., neuroticism, extraversion, conscientiousness, openness to experience and agreeableness） on the external auditors＇ ability to detect the likelihood of fraud. An experimental approach is adopted by sending case materials to audit partners and audit managers attached to auditing firms operating in Malaysia. The result shows that personality does not have a positive effect on the external auditors＇ ability to detect the likelihood of fraud.     

基于Geortzel算法实现高效多路DTMF检测

基于戈泽尔算法，可得到一种DTMF检测的高效算法，本文描述了这种算法及使用该算法在TMS320S50上实现的30路DTMF检测器。     

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。     

高速公路软基检测技术的应用分析

笔者结合多年的工程实践经验，对高速公路行业应用软基检测技术进行叙述，希望通过叙述与各位同仁相互交流，为类似工程的施工提供借鉴与参考。     

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.     

充分运用量值溯源提高检测工作质量

根据笔者在实验室长期工作的经验,结合实验室的相关标准,按量值溯源的管理途径,进一步阐述了实验室充分运用量值溯源信息,对仪器设备和标准物质进行科学管理的具体方法和措施,为不断提高检测工作质量提供了有力的保证。     

Imperfect Accounting and Reporting Bias

Errors and bias are both inherent features of accounting. In theory, while errors discourage bias by lowering the value relevance of accounting, they can also facilitate bias by providing camouflage. Consistent with theory, we find a hump‐shaped relation between a firm's propensity to engage in intentional misstatement and the prevalence of unintentional misstatements in the firm's industry for the whole economy and a majority of the industries. The result is robust to using firms’ number of items in financial statements and exposure to complex accounting rules as alternative proxies for errors and to using the restatement amount in net income to quantify the magnitude of bias and errors. To directly test for the two effects of errors, we show that when errors are more prevalent, the market reacts less to firms’ earnings surprises and bias is more difficult to detect. Our results highlight the imperfectness of accounting, advance understanding of firms’ reporting incentives, and shed light on accounting standard setting.     

网络安全事件流中异常检测的方法分析

伴随着计算机的普及应用与网络安全问题的日益突出,探寻一种网络安全异常的检测方式已经显势在必行。而优良的网络安全检测方法可以动态的反应网络的安全状况,及时的做出预警。本文之所以网络安全事件流的异常检测为论述对象,就是因为它不仅可以检测到来自外部的攻击,还可以检测用户本身在日常的操作中所使用的非授权行为。