化学工业出版社化学专业图书推荐

无损检测技术问答王海波、邵泽波主编本书以问答的形式系统介绍了渗透检测、磁粉检测、射线检测、超声波检测、涡流检测、声发射检测、光全息检测、红外热成像检测、微波检测、高温应变测试等无损检测技术,反映了无损检测领域的新技术和新方法,同时列举了生产实践中的许多应用实例,对比了     

中子成像技术在元素分析中的应用

中子成像作为一种快速、直观的无损检测技术,在核工业、航空航天、新能源、地质、考古、先进制造等多个领域得到广泛应用。中子成像利用中子不带电、穿透能力强、对轻元素敏感、可区分同位素和近邻元素等特性,非常适合开展含氢元素、近邻元素和同位素等材料的无损检测。本文概述了中子成像技术的基本原理及特点,并结合中国先进研究堆(CARR)中子成像装置上的应用案例, 重点介绍了国内外中子成像技术在储氢材料、燃料电池、岩石、核燃料元件、古代文物等领域的典型应用。随着中子成像技术的不断发展和广泛应用,有望为我国更多领域研究提供更强有力的技术支撑。     

GE车载传感器与检测科技亮相北京车展

全球著名的多元化企业GE（通用电气）旗下—GE传感与检测科技，亮相第十届北京国际汽车展零配件展区。在展会上，GE传感与检测科技展示了世界领先水平的车载传感器、无损检测以及微焦点x射线和工业CT技术，强调了将持续致力于为中国汽车及零部件厂商提供高品质的传感与检测技术解决方案，帮助中国的汽车制造和世界水平同步提升。     

机械工业部上海材料研究所无损检测研究室简解

上海材料研究所无损检测研究室组建于50年代,至今已有40多年的历史,是开展无损检测工作最早的研究室.主要有超声、射线、涡流、磁粉、渗透、声发射,实时成象技术如X射线工业电视和微波等无损检测方法,技术设备和器材的研究开发和应用.近年来已经取得的科研成果有:各种规格管、棒材的超声涡流自动探伤设备,焊缝超声显象探伤设备,钢铁材质分选设备,多通道超声自动探伤设备,奥氏体不锈钢粗晶材料的超声探伤设备,钢球和滚柱的涡流自动探伤设备,水下磁粉新探伤设备γ射线全景曝光技术及自动送源装置,球铁珠光体和球光体检测设备,复合材料的超声波探伤设备,深层涡流探伤方法及设备,核电主管道及压力壳、陶瓷材料的超声探伤方法,非金属微波探伤方法及设备.     

2016重大仪器专项“工业过程在线分析仪器”正式启动

正不久前,国家重点研发计划重大科学仪器设备开发专项"工业过程在线分析检测仪器开发与应用"项目启动会在北京铁道大厦顺利召开。中国钢铁科技集团有限公司王海舟院士、科技部高技术研究发展中心先进制造处刘进长处长、国家科技风险开发事业中心温强处长以及责任专家机械工业仪器仪表综合技术经济研究所欧阳劲松所长、钢铁研究总     

拉曼光谱技术及其应用进展

拉曼光谱作为一种无损分析方法,可以快速、精准地得到包括固体、粉末、液体、气体、胶体等不同类型样品的化学结构、相和形态、结晶度以及分子间相互作用等相关信息,因此被广泛应用于诸多领域。本文介绍了拉曼光谱的基本工作原理;总结了近年来拉曼光谱在环境检测、材料、食品安全、医疗、刑侦司法、勘探、工业等领域的应用,以期为今后拉曼光谱检测领域更好地发展提供参考。     

常见光谱技术在植物油品质检测中的应用

植物油品质检测技术中,以光谱技术为代表的更为简单方便、快速而不失准确性的无损检测技术为市场所需要。该文从植物油组成成分、市场售卖植物油掺假现状两方面对植物油的品质相关指标进行了介绍,着重介绍了红外光谱技术、拉曼光谱技术、荧光光谱技术、紫外光谱技术等不同光谱技术在植物油品质检测中的研究进展和应用现状,最后提出了光谱技术在植物油品质检测发展中的瓶颈,并对光谱技术在植物油品质检测中应用前景进行了展望。     

表面增强拉曼光谱技术在食品安全检测中的应用研究进展

表面增强拉曼光谱(SERS)是一种新型的快速检测技术,具有信息含量丰富、灵敏度高、操作简便、可无损检测等优点,在食品安全领域有很大的实际应用价值。该文介绍了表面增强拉曼光谱技术的发展历程、增强机理、基底的分类与应用以及检测模式,综述了表面增强拉曼光谱技术在食品有害小分子物质、食源性致病菌、重金属污染和真菌毒素等方面快速检测的最新研究进展,并提出了亟待解决的问题和发展趋势。     

水分检测技术的发展趋势

水分仪的种类繁多，但其市场潜力却不尽相同，计算机技术、原子技术与半导体技术的飞速发展，给粮食水分检测技术的发展提供了广阔的空间。为了实现全数字、实时在线测量，就必须要有快速无损检测技术作为保证。随着对无损检测技术的需要，无损检测仪器将逐步实现标准化、通用化和系列化，大规模可编程逻辑器件和数字信号处理器的推广和成本的降低，必将加速其在无损检测技术上的应用，不仅可以提高信号采集和处理速度，满足市场大量实时性要求，也将缩短开发时间，增加硬件的功能和扩展性。     

食源性致病菌的表面增强拉曼光谱检测技术研究进展

食源性致病菌引起的疾病的快速管控与预防是当前各国面临的食品安全监管难题之一,受到社会各界的广泛关注。目前常用的食源性致病菌检测方法存在步骤复杂、耗时、灵敏度低或选择性差等局限,发展快速、可靠的食源性致病菌检测方法仍是食品安全和公众健康的热点研究领域。表面增强拉曼光谱(SERS)作为一种新型的光谱快检技术,具有灵敏度高、选择性好、快速、无损检测等优点,在食源性致病菌检测方面表现出广阔的应用前景。该文简要介绍了SERS技术的背景、增强机制并总结了用于致病菌检测的活性纳米结构,全面综述了近5年来利用直接或间接SERS法以及SERS与其他技术结合检测食源性致病菌的研究进展,同时讨论了这些方法的优缺点。最后,提出当前SERS技术在实际应用中面临的挑战,并展望了SERS在食源性致病菌检测领域未来可能的发展趋势。     

A new approach to liquid penetrant inspection: radiolabeled QDots

Penetrant technique is a sensitive non-destructive testing (NDT) method for detecting and locating the presence of cracks in sample surface. Today, NDT is used in a wide range of industries including aerospace, biotechnology, defence, marine, oil–gas and energy plants. This work focuses on potential use of radiolabeled ZnS coated CdTe quantum dots (QDots) as a penetrant for liquid penetrant testing. The synthesized QDots as a precursor were tested for surface defects detection in welded joints. The experimental results show the highest activities were found in defects on the sample surface. These finding are consistent with the sample NDT inspection test report.     

元素成像技术在安检领域的研究进展

元素成像作为一种快速、直观的无损检测技术,在核工业、航空航天、新能源、地质、考古、先进制造等多个领域得到广泛应用。其中的X射线凭借较强的穿透物体的能力,太赫兹和毫米波凭借对人体无接触、低损害的特点,在安检领域得到了广泛应用。本文对这三种成像技术的数据集和近几年的图像处理技术进行了总结和归纳,为该领域的进一步深入应用提供了有力的技术支撑。     

Contrôle non destructif de matériaux composites par la technique des courants de foucault : une nouvelle approche

Quality testing of composite materials is regularly carried out using non-destructive testing (NDT) techniques such as ultrasound, radiography or infrared thermography. However, these techniques present some limitations for the NDT of composites in terms of accuracy, sensitivity, repeatability of the signal and sometimes difficulty of calibration. In this article, it is demonstrated that eddy current testing, once solely dedicated for NDT of metallic materials, can also be adapted for the examination of composite materials. Indeed, this technique appears to be adequate for the detection and the characterisation of major flaws such as delamination and impact. A good reproducibility of the signals has been observed and this technique may become an efficient and low cost alternative compared to more complex and expensive techniques. Experimental results are shown and analysed and the advantages and limitations of eddy current testing of composite materials are discussed.     

中国科学院检验检测机构资质认定概况

中国科学院检验检测机构的使命与定位是为国家科技战略发展提供技术支撑和高水平服务,为中国科学院系统各单位的科研和工程及社会需求提供高科技含量的检验检测服务,满足社会的高新技术、新兴产业检验检测的需求,为高新技术、新兴产业的产品质量检验检测提供有效的技术保障.中国科学院系统现有检验检测机构67个,分布在21个省、市、地区,...     

Advancing knowledge of plasma spraying coatings for Li||Sb-Sn liquid metal batteries by X-ray micro-CT

The performance of Li||Sb-Sn liquid metal batteries (LMBs) is hindered by the corrosion of the Sb-Sn cathode on its current collector. Herein, a uniform, dense, and low-oxidized W coating was prepared by plasma spraying, which can effectively resist the corrosion of the cathode and improve the cycle stability of the Li||Sb-Sn LMBs. For the first time, micro-CT nondestructive inspection is applied in the field of LMBs. The corrosion micromorphology and composition evolution of the SS304 matrix and Sb-Sn cathode with or without the plasma-sprayed W coating is obtained without disassembling the battery, which proves that the W coating can effectively protect the SS304 matrix. Our autonomous new LMB device for nondestructive inspection is universal and can be applied to different LMBs systems for advancing knowledge of corrosion mechanism and protection. This work guarantees the ability to directly visualize the inner critical positions in three dimensions and fills the knowledge gap in the field of LMB detection technology.     

Quality assurance and instrumentation

 The quality process for commercial analytical equipment starts with the selection of the vendor. It is recommended that vendors be selected who are recognized as having quality processes in place for instrument design, development, manufacturing, testing, service, and support, for example, ISO 9001 registration. When the instrument arrives in the laboratory, the installation process should follow well-documented procedures. This includes a visual inspection that the instrument is not damaged and checking that the instrument, documentation and accessories such as cables and tubings are complete. Before the instrument is used it should be verified that it meets functional and performance specification. During operation the instruments should be periodically inspected and tested, verified to meet performance, and calibrated. The instrument should be labeled with the calibration status, indicating the dates of the last successful and the next performance verification and calibration. Defective instruments should be removed from the testing area or should at least be labeled as being "out of order." Received 23 August 1995 Accepted 6 September 1995     

Improved non-destructive testing of carbon fiber reinforced polymer (CFRP) composites using pulsed thermograph

Pulsed thermography (PT) is a popular non-destructive testing (NDT) technique for defect detection in carbon fiber reinforced polymer (CFRP) composites. However, non-uniform backgrounds commonly observed in thermal images often reduce the detection power of PT. For background removal, mathematical morphology (MM), originally proposed for the analysis of geometrical structures, is adopted in this paper. After noise reduction, the non-uniform backgrounds in each image are conveniently constructed by MM. By subtracting the backgrounds from the original data, improved NDT is achieved. Experiment results show the effectiveness of the proposed method, where the defects in the CFRP specimen are more clearly identified.     

CRISPR-Cas Biochemistry and CRISPR-Based Molecular Diagnostics

Polymerase chain reaction (PCR)-based nucleic acid testing has played a critical role in disease diagnostics, pathogen surveillance, and many more. However, this method requires a long turnaround time, expensive equipment, and trained personnel, limiting its widespread availability and diagnostic capacity. On the other hand, the clustered regularly interspaced short palindromic repeats (CRISPR) technology has recently demonstrated capability for nucleic acid detection with high sensitivity and specificity. CRISPR-mediated biosensing holds great promise for revolutionizing nucleic acid testing procedures and developing point-of-care diagnostics. This review focuses on recent developments in both fundamental CRISPR biochemistry and CRISPR-based nucleic acid detection techniques. Four ongoing research hotspots in molecular diagnostics-target preamplification-free detection, microRNA (miRNA) testing, non-nucleic-acid detection, and SARS-CoV-2 detection-are also covered.     

表面增强拉曼光谱技术在食品安全检测中的应用

表面增强拉曼光谱是一种强有力的食品检验技术,当待测样品吸附于具有纳米量级粗糙度的金属结构表面时,样品分子的拉曼信号将得到极大的增强。该检测技术具有灵敏度高、响应迅速以及"指纹"识别等特点,在快速检测食品污染物等方面具有巨大的应用前景。该文介绍了表面增强拉曼光谱技术的发展历史、基本原理、基底分类以及联用技术,综述了该技术在重金属离子、兽药残留、农药残留、非法添加物、食源性致病微生物等方面的最新应用,最后提出了亟需解决的问题与未来的发展趋势(引用文献74篇)。