应用时域相位解包方法的三维形貌测量系统

为了解决投影法三维形貌测量中测量点误差受相邻点影响的问题,投射计算机按照所需频率和相位生成的正弦条纹,利用时域相位解包算法实现每个测量点的独立计算。为了降低测量复杂形貌时因栅距变化产生的误差,发展了虚参考平面法。列举了在真人头面部和鼠标测量中的应用。实验结果表明,在进行复杂形貌三维测量时,采用时域相位解包方法可以抑制误差的扩散,不受不连续区域的影响。整个测量过程可在5s之内完成,测量平面时精度可达0.78%。     

一种基于89C51单片机的臭氧浓度在线测量系统

研究了采用紫外吸收法的基于89C51单片机的臭氧浓度在线测量系统，介绍了系统的组成、主要模块的工作原理及程序流程图，采用数字滤波技术去除气路切换造成的测量粗差，提高和确保了系统测量精度与准确性．该系统能够与数控型臭氧发生器电源供电系统通讯，实现臭氧生产的闭环控制．     

浅谈供热计量收费

推行供热按计量收费是福利型供热体制向市场型供热体制转变的具体体现。热计量收费应合理选择采暖系统、适合热计量的室外供热系统及其控制，同时，热计量收费价格的确定要考虑多方面的因素，热计量一定要和温控配合使用，才能达到最好的节能效果。     

高炉砼基础测温

从方案制定、现场施工、温度记录、后续开发等方面，介绍了高炉工程砼基础温度监控项目的方案设计和实施措施。     

VB6.0下利用PC机串口实现导弹整流罩壁厚的测量

为实现导弹整流罩壁厚的测量，介绍了在VB6．0环境下发挥PC机RS-232串口的作用，使用串行通讯控件MSCornm构成数据采集时间间隔为0．1秒的测量控制系统，介绍了控制系统软件中一些关键环节的处理过程。     

运用主成分分析方法评价上市公司经营管理业绩

上市公司的经营管理业绩可以通过一系列的财务指标来反映 ,但这些财务指标只能反映公司经营活动中某时刻某个方面的情况。本文运用主成分分析法 ,对内蒙古 19家上市公司的 8项财务比率进行综合评价 ,得到上市公司财务状况综合评价指数 ,对上市公司的经营管理业绩作实证分析     

基于EDA技术的数字电压测量系统设计中几个关键问题的解决

基于EDA技术设计完成的数字电压测量系统，采用了VHDL语言进行硬件描述，以超大规模芯片如CPLD／FPGA为设计载体，进行适配编译、逻辑映射、编程下载．结合实践，通过对设计中几个环节的研究，阐述该系统的设计思路和方法．     

MTU396柴油机电子检测控制应用技术及故障分析

论述了MTU396系列柴油机所采用的SUE396T02电子检测控制应用技术功能、原理，介绍了其常见的故障及处理方法，这将对改进我国目前的柴油机电子检测控制技术起到积极的借鉴作用。     

On the origins and foundations of Laplacian determinism

In this paper I examine the foundations of Laplace’s famous statement of determinism in 1814, and argue that rather than derived from his mechanics, this statement is based on general philosophical principles, namely the principle of sufficient reason and the law of continuity. It is usually supposed that Laplace’s statement is based on the fact that each system in classical mechanics has an equation of motion which has a unique solution. But Laplace never proved this result, and in fact he could not have proven it, since it depends on a theorem about uniqueness of solutions to differential equations that was only developed later on. I show that the idea that is at the basis of Laplace’s determinism was in fact widespread in enlightenment France, and is ultimately based on a re-interpretation of Leibnizian metaphysics, specifically the principle of sufficient reason and the law of continuity. Since the law of continuity also lies at the basis of the application of differential calculus in physics, one can say that Laplace’s determinism and the idea that systems in physics can be described by differential equations with unique solutions have a common foundation.     

States of ignorance and ignorance of states: Examining the Quantum Principal Principle

Earman (2018) has recently argued that the Principal Principle, a principle of rationality connecting objective chance and credence, is a theorem of quantum probability theory. This paper critiques Earman's argument, while also offering a positive proposal for how to understand the status of the Principal Principle in quantum probability theory.