一种增强的加油机防作弊系统

介绍了燃油加油机防作弊功能的启用和运行情况,维修主板、编码器后的加油机防作弊功能的启用.针对防作弊系统经过维修后可能“自动取消”的现象,提出了一种增强的加油机防作弊系统,将其启动程序固化在监控微处理器内,自动启用,实现加油机的防作弊功能.     

电子计价秤软件自动测试系统

通过对电子计价秤软硬件结构的分析,给出了基于硬件结构作弊的检查方法,并给出了基于软件的自动测试系统,而且针对电子计价秤软件算法正确性、键盘作弊、载荷作弊、键盘载荷组合作弊给出了相应的测试方法,解决了目前作弊电子计价秤测试技术难题。     

电子计价秤软件自动测试系统

通过对电子计价秤软硬件结构的分析,给出了基于硬件结构作弊的检查方法,并给出了基于软件的自动测试系统,而且针对电子计价秤软件算法正确性、键盘作弊、载荷作弊、键盘载荷组合作弊给出了相应的测试方法,解决了目前作弊电子计价秤测试技术难题。     

电子汽车衡作弊方式及预防措施

本文总结了目前几种常见的电子汽车衡作弊方式,并给出了相应的预防和勘察方法,以便能够及时发现作弊现象,同时能及时避免作弊行为的发生,达到挽回或减少企业和个人损失的目的。一、电子汽车衡常见作弊方式1.利用车辆作弊车辆不完全上秤或者多台车同时上秤,达到减少皮重或增加货物净重的目的。主要作弊的手段有:车辆不完全上秤,造成毛重比实际重量小。前(后)面的车非法上衡,造成皮重比实际重量大。     

出租车计价器的作弊及防范探讨

介绍了出租车计价器常见的作弊方式和防范技巧。从计价器的工作原理出发,对在各个环节加入作弊信号的方式和结果进行了剖析,给出了乘客通过细心观察也可以甄别计价器是否作弊的防范技巧。最后,从管理的角度提出了杜绝计价器作弊的条件。     

燃油加油机计量作弊识别及防作弊探讨

加油机是国家重点监管的计量器具,当前,加油机计量作弊技术越来越高,从原来初级的破坏铅封、改动加油机部件、调节加油量等机械式作弊方法,演变为高科技智能化作弊手段。不法加油站采用的计量作弊手段主要包括私拆铅封、更换主板、更换计量芯片、更换齿轮、修改脉冲冲量等层出不穷的手段,达到其不法目的。当前的作弊手段,有易作弊、易恢复、难发现的特点。文章概括了目前较为常见的作弊方式,并对防作弊方式进行了探讨。     

从2013年高考作弊事件探析当代学生的作弊原因

古今中外,考试和作弊"如影随形"。作弊的出现,不应该只是拷问学生的道德品质底线。钟祥县的高考事件如同一个万花筒,折射出了多方面导致作弊行为的社会百态。本文从学生、教育者和供需关系三个角度详细分析了当代学生作弊的原因,最后提出建议的应对措施。     

电子汽车衡防作弊研究

一、电子汽车衡的常见作弊类型 电子汽车衡的作弊方式分为外部作弊和内部作弊。外部作弊无论是在模拟式还是数字式电子汽车衡中都可能有。 1.外部作弊 （1）减少称量值。通过秤体底部放置砖头、木块等硬物,利用反作用力原理达到进货过秤时减少总重量的目的。     

浅谈电子衡器作弊的方法及有效的防御措施

各行各业利用大型电子衡器作弊的现象时有发生,本文根据大型电子衡器的工作原理,找出可能存在的作弊方法,并且针对这些作弊方法,利用改进大型电子衡器结构和加装作弊装置等方法来有效的防御当前存在的电子衡器作弊活动。     

燃油加油机怎样防作弊

本文对燃油加油机的作弊进行了分析,并对燃油加油机作弊的方法进行了探讨和预防。     

Estimation of Parameters of Universal Distribution of Moments of Failure of Products

A method is proposed for estimating the parameters of a mixture of exponential and Weibull distributions for which the accuracy of preliminary estimates obtained by graphical analysis is refined in accordance with the criterion of maximum likelihood. The efficiency of the proposed method is supported by the results of statistical modeling.     

Evaluation of optical properties of highly scattering media by moments of distributions of times of flight of photons

A novel method for the determination of the optical properties of tissue from time-domain measurements is presented. The data analysis is based on the evaluation of the first moment and the second centralized moment, i.e., the mean time of flight and the variance of the measured distribution of times of flight (DTOF) of photons injected by short (picosecond) laser pulses. Analytical expressions are derived for calculation of absorption and of reduced scattering coefficients from these moments by application of diffusion theory for infinite and semi-infinite homogeneous media. The proposed method was tested on experimental data obtained with phantoms, and results for absorption and reduced scattering coefficients obtained by the proposed method are compared with those obtained by fitting of the same data with analytical solutions of the diffusion equation. Furthermore, the accuracy of the moment analysis was investigated for a range of integration limits of the DTOF. The moment analysis may serve as a comparatively fast method for evaluating optical properties with sufficient accuracy and can be used, e.g., for on-line monitoring of optical properties of biological tissue.     

Assessment of intakes of mixtures of radionuclides

Australia has several uranium mines and a large number of mineral sand mines, with associated processing facilities. Exposures resulting from these mining and processing operations usually involve intakes of mixtures of radionuclides. This work describes the development of a suite of first order, linear compartment models, based on the ICRP Publication 66 respiratory tract model, and an analytical solution to the decay equations, for assessing the consequences of such intakes. The computer programs based on these models directly compute excretion, organ retention and organ and whole-body doses for intakes of either single radionuclides or any mixture of radionuclides belonging to the same radioactive decay chain. The intake can be via inhalation, ingestion or injection, and can be acute, chronic or of limited duration. The starting concentration and degree of secular (dis)equilibrium can be specified for each radionuclide. No assumptions need to be made about the relative magnitudes of the radioactive half-lives of the different nuclides.     

Estimation of potentialities of methods of summation of direct measurement errors

Conventional methods for summation of direct measurement errors are considered. Conditions under which these methods provide consistent results are stated. It is proposed to utilize for characteristic of the total error, its interval estimator or the half-sum of the value obtained by adding up its arithmetic and geometric random errors.Translated from Izmeritel'naya Tekhnika, No. 4, pp. 10–12, April, 1995.     

卧式金属罐容量的测量结果不确定度

本文根据多年的实践检定经验 ,参照JJF1 0 59- 1 999《测量不确定度评定与表示》以及《测量不确定度表达 1 0讲》 ,对卧式金属罐容量的测量结果不确定度进行了评定。     

盐酸浓度不确定度的评估

通过对盐酸浓度标定的过程分析，找出影响结果的各个分量，进行不确定度的评定，按照计量技术规范给出标准的表示法。     

Analysis of the rate of propagation of the wave of change of boiling modes

An approximate analytical expression is derived for the velocity of the front of the wave of change of boiling modes on a rod and on a plate. The impact of the Thomson effect and of the heater orientation in the gravity field is included. Adequate agreement is demonstrated between the derived relations and experimental data.