基于遗传算法的锅炉水位控制器设计

文章分析了锅炉水位控制系统的基本原理及结构,针对传统PID控制器的不足之处设计了基于遗传算法的新型锅炉水位控制器,在此基础上搭建了锅炉水位控制系统。最后,通过仿真验证了该水位控制器在改善水位系统稳态误差及动态超调方面均具有较好的作用。     

制造业竞争力比较研究——基于浙江地区与国内外制造业的分析比较

制造业竞争力对于区域经济发展具有至关重要的支撑作用。通过建立MCI制造业竞争力指数模型量化比较发现，随着劳动力成本等要素制约加剧，浙江制造业竞争力和竞争优势近年来大幅弱化。加快实现创造驱动、人才驱动、技术驱动、改革驱动“四轮驱动”，加速提高劳动生产率，推进产业转型升级，提升产业核心竞争力，打造经济升级版，从而实现长期可持续增长，是今后很长一段时期内浙江经济的重大课题。     

目前高校学生档案管理的困境及对策剖析

高等院校学生档案是学生在校期间各方面表现及社会实践活动的真实记录,是国家选拔任用人才的重要依据,然而目前我国高校学生档案管理存在学生档案材料不全面、档案管理制度不完善、现代化软件管理系统不健全等诸多问题。本文对这些问题进行了分析,并提出了加强高校学生档案的相应对策。     

HT公司绩效评价体系存在问题及解决对策

本文基于HT公司的生产管理特点,首先从绩效目标制定的程序不科学、考核周期太长、绩效评价方法不完善等六方面分析了HT公司绩效评价存在的问题;其次从成立绩效考评委员会、建立以绩效为导向的企业文化、明确员工的职业发展道路等五个方面提出解决对策。     

盈余操控方式对创业板上市公司IPO后业绩的影响

通过对创业板上市公司从应计盈余管理和真实盈余管理两个视角比较不同盈余操控方式对IPO后企业业绩的影响。实证分析结果表明,创业板公司IPO前后同时实施应计项目操控和真实活动操控两种盈余操控行为。其中真实盈余管理是IPO后企业业绩下滑的深层次原因,且不同盈余操控方式对IPO后3年业绩影响具有时间差异。     

Who Herds? Who Doesn't? Estimates of Analysts’ Herding Propensity in Forecasting Earnings

We develop parametric estimates of the imitation‐driven herding propensity of analysts and their earnings forecasts. By invoking rational expectations, we solve an explicit analyst optimization problem and estimate herding propensity using two measures: First, we estimate analysts’ posterior beliefs using actual earnings plus a realization drawn from a mean‐zero normal distribution. Second, we estimate herding propensity without seeding a random error, and allow for nonorthogonal information signals. In doing so, we avoid using the analyst's prior forecast as the proxy for his posterior beliefs, which is a traditional criticism in the literature. We find that more than 60 percent of analysts herd toward the prevailing consensus, and herding propensity is associated with various economic factors. We also validate our herding propensity measure by confirming its predictive power in explaining the cross‐sectional variation in analysts’ out‐of‐sample herding behavior and forecast accuracy. Finally, we find that forecasts adjusted for analysts’ herding propensity are less biased than the raw forecasts. This adjustment formula can help researchers and investors obtain better proxies for analysts’ unbiased earnings forecasts.     

The Joint Effects of Multiple Legal System Characteristics on Auditing Standards and Auditor Behavior

This paper derives the impacts of legal system characteristics and auditing standards on auditor behavior (audit quality), and analyzes the determination of optimal auditing standards under different legal regimes. Legal regimes are characterized by differences in the uncertainty concerning the outcome of legal proceedings (termed vagueness of legal systems) and differences in the average size of damage awards. Auditing standards as determined by standard setters can vary in both toughness and vagueness. Our analysis provides implications for the adoption of International Standards on Auditing (ISA). Countries, such as the United States, where auditor legal liability is significantly more onerous than the global norm are not likely to adopt ISA, since these standards may not induce auditors to provide the optimal level of audit quality. Conversely, the adoption of ISA by countries, such as China, where the legal system makes the recovery of damages from auditors quite difficult, is not by itself likely to result in a high level of audit quality. Furthermore, our model suggests that auditor rotation can help improve audit quality, but only in certain circumstances.     

试论人工智能应用于我国传统制造业的启示

现阶段,人工智能的应用和普及已经成为社会运行发展的一大趋势。与此同时,传统制造业面临着与人工智能相结合应用的升级和转型。论文基于人工智能发展与应用的背景,对人工智能带来的机遇和挑战展开分析,指出了人工智能应用于我国传统制造行业未来发展趋势方面的启示,并在此基础上提出人工智能在传统制造行业的应用办法,提高人工智能运行效率。     

基于BIM+GIS技术的高校教学楼消防疏导研究

本文通过BIM建模、GIS路径分析以及云平台可视化漫游模拟火灾发生时的建筑内部情况,根据路阻分析及消防安全疏散时间的计算,得出最优逃生路径,为天津理工大学环境科学与安全工程系学院内师生安全提供保障.