粗纱锭翼性能参数智能化测试系统

为了对粗纱锭翼性能参数进行测试,研制了一种新型粗纱锭翼性能参数测试系统.研发混合驱动差动式变径机构,在不同转速下,可模拟筒管卷绕直径的连续变化,测试粗纱卷绕过程中锭翼压掌对粗纱卷装的压力变化规律.该系统由机械传动、控制和信号处理3部分组成,可实现控制数据采集及处理的自动化.测试结果表明:该测试系统达到设计要求,设备运转平稳,操作方便,自动化程度及测量精度均较高,可为锭翼性能测试和设计提供依据.     

自动摩擦装置的创新设计及用于防护服静电性能测试

依据新标准《防静电服》GBl2014-2009创新设计了一种自动摩擦装置。该装置采用微处理技术程序控制，实现了摩擦过程自动化，消除了人工取样对测试的影响。样机经过防护服静电性能测试，适用方便，测试数据重现性较好，可为配套新标准提供一种新型自动摩擦装置。     

民用飞机ARINC661仿真和监控试验台研究

随着民机驾驶舱设计的迅速发展,显示系统功能愈加复杂,基于ARINC661显示集成技术的显示系统得到广泛应用。针对显示系统与全机成员系统间通信复杂多样、数据传输量大、传输链路众多、系统间交互功能与显示控制逻辑测试困难的问题,设计了ARINC661仿真和监控试验台。该试验台对DF进行解析并生成配置文件,支持ARINC661总线信号监控和仿真,能够开展ARINC661系统自动化测试,提升测试能力和效率。     

FLN—1型智能化粗纱锭翼动态参数测定仪

我校研制的FLN-1型粗纱锭翼动态参数测定仪是以MCS-51系列单片计算机为核心的智能化仪器,用来测量粗纱锭翼动态压掌力、锭翼扩张量和相对应的锭翼转速,对于研究锭翼结构、提高锭翼质量都有重要作用。 一、测定仪的主要技术性能 1.动态扩张量测量 测量范围:0～10mm;     

自动化控制技术在油脂精炼生产中的应用

结合油脂精炼工艺,介绍了自动化技术的组成与PLC设计,针对碱炼车间加碱量的控制、脱色车间白土添加量的控制、脱色车间过滤机的控制、回路的PID自动控制、冷却水风机的节能控制这几个关键点自动化控制技术的应用进行分析说明。     

原木材积自动化检测系统

提出了基于自动化测试技术与计算机视觉技术的原木检尺新方法，设计、研制了相应的自动化检尺系统。工控机控制高分辨率的工业CCD数字成像单元对一手原木端面成像，并把图像数据库传输到工控机。基于目前施行的国家标准，结合待识别对象的特点，设计、开发了相应的图像处理和识别软件。图像识别结果经必要的人工交互处理后按照国家标准进行计算，其结果存入专用数据库。数据库对自动化检尺过程与结果进行管理和监督。实测结果表明，自动化检尺系统的检尺方法符合国家标准，检尺结果稳定、可靠，检测误差小于1%。     

ZJ118卷接机组烟丝束流量控制装置的设计

为解决ZJ118卷接机组在烟丝束成型阶段烟丝量供给不足,导致的烟丝分布不均匀、烟支重量波动大的问题,设计一种烟丝束流量控制装置。通过计算烟丝束流量和回丝量,根据计算结果控制针辊转速,提高烟丝供给稳定性,降低烟支重量标准偏差。以某卷烟生产厂ZJ118机组为对象进行测试,结果表明：使用烟丝束流量控制装置后,烟支重量平均偏移降低了25%,标准偏差降低了9.7%。该技术可为提高中支烟卷接机组的运行效率和烟支质量提供支持。     

谷物包装自动流水线设计

针对人工作业成本高及过程自动化程度低等问题,设计了谷物进仓、灌装和封口过程的自动化设备。以PLC为核心的控制系统统一指令实现谷物收割进仓、烘干出仓以及包装称量过程的自动化。利用栅板与弹簧、棘轮构成的动配合实现稻屑分离;采用新型卡合结构完成谷物包装袋的封口。根据工作过程,确定该系统控制流程,最后对样机进行运行稳定性实验测试。测试结果表明所设计的流水线能有效实现稻屑分离、撑袋、灌装、称质量和封口过程自动化。该流水线设计能够满足设计要求,提高工作效率。     

基于.NET平台的VSAT卫星通信自动测试系统设计

传统的VSAT卫星通信测试方法无法模拟实际的测试环境;因此,测试结果不能准确地反映卫星通信的性能及各项指标。为解决这个问题,设计并开发一个基于.NET平台的VSAT卫星通信自动测试系统,在该系统中,利用虚拟化和自动化技术将VSAT卫星通信集成到.NET平台中,该系统由前端模块、测试环境模块、自动化测试模块3个功能模块组成。该文对基于.NET平台的VSAT卫星通信自动测试系统的详细实现进行分析和讨论,重点对测试流程的灵活性和可靠性的设计进行详细描述,并针对VSAT卫星通信系统的特点,深入分析系统的可扩展性,实验证明,该自动测试系统运行可靠、稳定、自动化程度高,满足VSAT卫星通信系统的要求。     

锭子振动测试装置的研制

采用现代设计方法,在深入研究锭子振动原因的基础上设计出了一套锭子振动测试装置.该装置包括机械、检测、控制三大部分.机械部分采用传感器固定机移动系统,分别对锭子传动部分和测试台进行设计.检测部分采用虚拟仪器图形化编程语言LabVIEW组建锭子振动测试分析系统,实现了对振动信号的采集、处理和分析,大大降低了硬件成本.控制部...     

食品检测能力验证中沙门氏菌的分离鉴定

目的 参加编号为CFAPA-375的食品中沙门氏菌能力验证,提高检验技能,验证实验室沙门氏菌的检测能力。方法 采用国标法对沙门氏菌能力验证样品进行检测,同时采用实时荧光PCR法作为辅助方法。对分离出的可疑菌落,采用全自动微生物鉴定系统和实时荧光PCR法进行全面鉴定。结果 样品N1和N3中检出沙门氏菌,样品N2中未检出沙门氏菌,实时荧光PCR法与国标法检测结果一致。结论 本次实验室的能力验证结果为“满意”,验证了实验室沙门氏菌的检测能力。实时荧光PCR法快速、简便、特异性强,可与国标法配合使用,以确保实验结果的准确快速。     

玉米品系转基因检测能力验证结果与分析

目的 提高实验室的检测能力和检测人员的技术水平,增强实验室的竞争力。方法 中心分子生物学实验室依据农业部公告和能力验证要求,参加了由中国检验检疫研究院组织的ACAS-PT757(2019)转基因玉米品系能力验证,编号分别为19-S183和19-T170。结果 进行PCR扩增结果显示,19-S183待测样品中检出BtII转化体、MIR162转化体和MON89034转化体均呈阳性;19-T170待测样品中未检出BtII转化体、MIR162转化体和MON89034转化体均呈阴性。结论 本次能力验证获得满意评价。     

Ethics of human testing

What should one do, and why? Anyone asking such questions - and everyone does so hundreds of times each day - is concerned with ethics. Product development and testing raise many ethical questions. Particularly since the rise of ‘green consumerism’, these are of increasing concern to people outside the cosmetics industry, and so should be of interest to those inside it. The major problem seems to be that of reaching agreement on moral and ethical issues. Overcoming this problem involves investigating what is meant by ‘ethics’, and how decisions depend not on facts but on ‘facts-as-perceived’. These in turn depend on many factors, with one's philosophy being the most fundamental. The range of philosophical options is reviewed and it is proposed that wider discussion is the only just way to achieve agreement. Yet some things are not negotiable. There are certain key moral concepts in terms of which discussion must take place for it to be relevant. In ethics of human testing, ‘respect for others’, that is, avoiding exploitation, is the principal one. Some synthesis of the key moral concepts like that of Immanuel Kant is therefore recommended as the soundest and most widely acceptable basis for the necessary discussion. Defining the responsible use of human subjects covers a range of issues, moral, historical, legal and professional. For example, there may be ethical difficulties in deliberate damage induction as in SPF and irritancy testing. But above all, to avoid exploitation, there is a moral and also a legal requirement that subjects are truly volunteers. This is the basis of the concept of ‘informed consent’, required but not generally explained in current professional codes of practice. It is unjustified to exploit those who may be under duress, such as ‘in-house volunteers' and those with low incomes. Hence in conclusion, criteria for obtaining valid informed consent are briefly reviewed. By considering issues such as these, we can help ensure that cosmetic scientists are true professionals, that is, those who recognise and are concerned with the ethical basis of their work.     

服装压力测试研究

介绍了一种新型的采用Flexiforce传感器用于弹性织物服装压力的测量系统。该系统集数据采集、存储、分析、显示等功能为一体，可以实现多点数据采集、实时记录、分析数据等多种功能，该服装压力测试系统为压力舒适性的客观评定提供了依据和基础。     

Fundamentals of stability testing

The principles on which stability tests are based are reviewed. The need to differentiate between product stability and product-container compatibility is emphasized. Recognition of this distinction is fundamental to the efficient organisation and execution of stability tests.
Attention is also drawn to the desirability of having for every product a release specification with which it must comply when manufactured and a broader check specification with which it must comply throughout its shelf-life.
Test methods and the interpretation of the data accrued throughout a test are also discussed.
It is concluded that stability tests should not be conducted in accordance with a standardized routine pattern but that the objectives of each test should be defined and the test designed to achieve those objectives in the most efficient way.
Les regles fondamentales des essais de stabilite     

Equivalence hypothesis testing

In statistical applications, such as a comparison of two items, it is useful to know whether one item is equivalent to another. Similarly it is often desirable to know whether one item can act as a substitute for another. Applications of the concept of equivalence include blend and flavor modifications of products, substitution of generic drugs for brand-name drugs, modifications of products in response to government regulations, or component substitutions with more healthful or lower cost components. In addition, some companies develop products that are direct substitutes for those of their competitors and make advertising claims concerning their equivalence.In a recent paper, Ennis and Ennis [Ennis, D. M., & Ennis, J. M. (2009). Hypothesis testing for equivalence based on symmetric open intervals. Communications in Statistics – Theory and Methods, 38(11), 1792–1803] used an open interval to define equivalence and provided exact and approximate methods for testing a null hypothesis of nonequivalence. In this paper, a discussion of this newly developed theory of equivalence testing is presented along with a comparison to existing methods such as the “two one-sided tests” (TOST) method. We provide numerical examples to illustrate this new theory and we demonstrate that although the TOST is a convenient approximation it is fundamentally inconsistent with the specification of the null hypothesis.     

GMO testing hurdles

Detecting the presence of genetically modified food may be more challenging than legislators expect.     

化学防护服液密性测试仪的设计与使用

阐述了化学防护服液密性能的测试原理,介绍了其技术特征,并根据国家标准GB 24540-2009《防护服装酸碱类化学品防护服》和GB 24539-2009《防护服装化学防护服通用技术要求》,设计开发了一种用于检测防护服液密性能的仪器,介绍了仪器的设计原理、组成、实现方法以及测试过程.     

大容量棉花检测仪器测试原理及指标的分析

阐述了棉纤维大容量检测仪器的测试原理和特点,并分析了与纱线质量相关的测试指标。仪器测试速度快,取样量大,指标多,结果重现性好,其测试指标与传统指标有很大的相关性,但因原理不同,没有确切的换算关系。