基于机器视觉的塑胶制品表面缺陷自动检测技术

详细阐述了机器视觉的照明系统、CCD摄像机、图像增强、图像分割、图像识别等关键技术的发展现状,并介绍了机器视觉技术在塑料电子元件、带材、PVC建材、薄膜、皮革、塑料瓶子等塑胶制品表面缺陷自动检测中的应用现状.     

Products properties from fast pyrolysis of enzymatic/mild acidolysis lignin

The conversion of enzymatic/mild acidolysis lignin (EMAL) isolated from moso bamboo to aromatic chemicals by fast pyrolysis were investigated under nitrogen atmosphere and atmospheric pressure. The experiment of EMAL pyrolyzing was set on a tubular reactor furnace at the temperature levels of 400, 500, 600, 700, 800 and 900 °C, and the products derived from EMAL pyrolyzing were classified into three-phase of gas, condensed liquid (tar), and solid (char). The chemical structure and surface morphology of solid product were characterized by fourier transforms infrared spectroscopy (FTIR) and scanning electron microscopy (SEM), and the ingredients of gas product and liquid (tar) were analyzed with gas chromatography (GC) and gas chromatography/mass spectrometer (GC/MS). The analysis results indicated that the yield of char decreased rapidly from 43% to 28% with an increase of temperature, and the yield of gas product increased gradually from 6% to 26%, and the yield of tar attained a maximum at 700 °C. SEM showed that char took on lots of vesicles that resulted from the gas release from EMAL pyrolyzing. The ingredients of gas product were comprised of H₂, CO, CO₂ and light hydrocarbons (CH₄, C₂H₄ and C₂H₆), and the amount of H₂, CO were high. Besides a huge amount of phenols, the tar contained aromatic hydrocarbons, chain hydrocarbons, monoaromatic aromatic hydrocarbons and some ketones, and the carbon number of chemical compounds were C₆–C₁₀.     

辣椒及其制品中罗丹明B的超高效液相色谱荧光检测

建立用超高效液相色谱荧光检测器测定辣椒及其制品中罗丹明B残留量的方法。样品中残留的罗丹明B用甲醇/水溶液提取,高速离心后,用超高效液相色谱荧光检测器测定,外标峰面积法定量。罗丹明B在5～500μg/L范围内呈良好的线性关系,3个水平（5.0、20.0、60.0μg/kg）添加罗丹明B的回收率为80.0%～119.8%,相对标准偏差（RSD）为1.08%～2.64%,检出限为5μg/kg。此方法具有简单、快速、准确等优点,适用于辣椒及其制品中残留罗丹明B的检测。     

出口肉和肉制品中西玛津残留量的快速测定

本文采用气相色谱法测定肉和肉制品中西玛津残留量,本方法简单,快速,精密度及准确度良好。     

《煤化工产品分析技术》课程教学改革尝试与思考

《煤化工产品分析技术》是高职高专类应用化工技术（煤化工方向）专业开设的一门重要的专业必修课。针对原有煤化工产品分析技术教学情况中存在的问题,从基于工作过程的角度对该课程实施教学改革,有效地提高了该门课程的教学效果。     

高效液相色谱-串联质谱法测定水产品中的喹乙醇

为测定水产品中喹乙醇的残留量,建立了高效液相色谱-串联质谱联用(HPLC-MS/MS)的测定方法。均质后的试样经水提取、液-液分配净化后,采用ZORBAXSB-C18色谱柱,并以0·1%乙酸 乙腈(70 30,体积分数)为流动相,色谱分离后直接进入串联质谱检测器。采用电喷雾正离子,多反应监测(MRM)模式检测,外标法定量。方法的检出限为10μg/kg,浓度在0·5~500μg/L范围内,线性良好(r=0·9989),添加浓度在10~500μg/kg时,不同水产品基质的回收率在74·3%~93·5%之间,相对标准偏差(RSD)小于5·6%。本方法检出限低,回收率高,定性可靠,定量准确,适合于水产品中喹乙醇残留的检测。     

机械产品外观色彩的选择

阐述色彩具有的冷暖感、轻重感、远近感、软硬感、胀缩感等方面效果,提出根据色彩给人的不同感觉来选择机械产品的外观色彩。     

Meat from wild boar (Sus scrofa L.): A review

Wild boar is a species that is utilised for food and sport hunting throughout the world. Recent increases in natural populations and the potential of farming wild boars have stimulated interest in this species as a meat producer. Compared to domestic pigs, wild boars present a higher degree of carcass fatness and larger loin areas, more slow-twitch oxidative (I) and fast-twitch oxidative glycolytic (IIA) and less fast-twitch glycolytic (IIB) muscle fibres, and darker, less tender and leaner meat. Differences in diets might contribute to differences in cooked meat flavour and fatty acid composition between wild boars and domestic pigs. Higher α-tocopherol concentrations in wild boar might extend its meat shelf-life. Mechanical massaging of muscles, vacuum package ageing and addition of marinates have been attempted to tenderise wild boar meat. Further research on hunting protocols for wild boar, and value-added products from its meat, are needed.     

Mapping the IEC 62264 models onto the Zachman framework for analysing products information traceability: a case study

In order to face new regulation directives regarding the environment and also for improving their customer relationship, enterprises have to increasingly be more able to manage their product information during the entire lifecycle. One of the objectives among others in this paper is to deal with product traceability along the product lifecycle. To meet this objective, the information system has to be designed and, further built in such a way all information regarding products is recorded. The IEC 62264 standards define generic logical models for exchanging product and process information between business and manufacturing levels of enterprise applications. Thus, it can be a base for product information traceability. However, its complexity comes from the fact it mixes conceptual and implementation details while no methodology exists that defines how to instantiate it. Product traceability is then needed to increase its abstraction level in order to concentrate on its concepts and managing its application by providing a methodology for its instantiation. In this paper, we propose to map the IEC 62264 standard models to a particular view of Zachman framework in order to make the framework concrete as a guideline for applying the standard and for providing the key players in information systems design with a methodology to use the standard for traceability purposes.