Results 11 to 20 of about 168,242 (140)
Determination of 9 Organotins in Food Contact Materials(食品接触材料中9种有机锡的检测) [PDF]
Shipin kexue jishu xuebao, 2021 An analytical method for simultaneous determination of organotins in food contact materials with different uses by gas chromatography-mass spectrometry was established.
QIAN Chong(钱冲) +6 more
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Effect of Aflatoxin B1 Removal by Ultra High Pressure-Assisted Enzyme Treatment on Quality of Rice Bran Polypeptides(超高压辅助酶法脱除黄曲霉毒素B1工艺对米糠多肽品质的影响) [PDF]
Shipin kexue jishu xuebao, 2019 Based on the optimized process for aflatoxin B1(AFB1)removal through the ultra high pressure-assisted enzyme treatment, the quality of rice bran polypeptides has been evaluated.
LIN Yiyun(林奕云) +5 more
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Safety Issues during Tea-processing in China and their Countermeasures(我国茶叶加工过程的质量安全问题及对策) [PDF]
Shipin kexue jishu xuebao, 2014 This paper described the management mode and the status of tea quality and safety in China and introduced the tea quality control experience in India, Japan, Europe, and the United States.
LIU Xin(刘 新) +6 more
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Safety Issues in Tea Deep-processing Products in China and their Countermeasures(我国茶叶深加工产品的安全问题及对策) [PDF]
Shipin kexue jishu xuebao, 2014 This paper introduced the current situation of Chinese tea deep-processing industry and analyzed the food safety issues in the production of major tea deep-processing products from the aspects of raw materials, processing, and related regulations and ...
YIN Jun-feng(尹军峰) +3 more
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Tea Safety Issues in Field Production in China and their Countermeasures(我国茶叶在种植环节的质量安全问题及对策) [PDF]
Shipin kexue jishu xuebao, 2014 This paper outlined the kinds of tea quality issues during tea production in fields and their affecting factors and explored some of the control measures.
HAN Wen-yan(韩文炎) +2 more
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, 2023 高超声速边界层是一个基础的科学问题。为了研究高超声速平板边界层的流场特性，结合数值模拟、理论求解和试验验证三种手段进行综合分析。数值模拟对二维Navier-Stokes (N-S)方程采用五阶精度的WENO格式离散对流项、六阶中心格式离散黏性项，时间推进项采用三阶Runge-Kutta法。理论分析利用四阶Runge-Kutta结合打靶法求解得到可压缩平板边界层层流自相似解。试验验证利用中科院力学所JF-12复现风洞测试得到大尺度平板的壁面热流，大尺度的平板模型布置传感器达到了较高的空间分辨率 ...
姜宗林, 刘美宽, 韩桂来
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, 1986 疲劳研究是许多工业部门迫切需要开展的课题,但是要开展疲劳方面的研究,必须有疲劳试验设备,疲劳试验机就是最基本的设备之一。现在市场上销售的疲劳试验机,价格昂贵,一般都在十几万元至一百多万元。许多小企业和厂家都难以购买,而这些企业和厂家却有进行静力试验的材料试验机。如果将材料试验机改装为疲劳试验机,既可以充分发挥试验机的效率,又可以开展疲劳试验 ...
栗彦, 曾春华, 袁丕坚
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, 2012 本发明涉及一种微扭矩力学试验机及其测试方法。该试验机包括：控制装置和试验机主机，所述控制装置用于设置试验方法，向试验机主机发出命令和分析处理从试验机主机得到的实验数据；所述试验机主机用于对试样进行加载。测试方法包括：通过定制的试验软件控制信号发生模块产生一电压信号，经调理放大后驱动试验机主机工作；信号采集模块采集角度信号和线圈的驱动信号；将采集到的角度信号换算为旋转角，将采集到的线圈驱动信号换算为扭矩；按照力学模型进行数据处理，得出被测试样的切应力一切应变曲线，进而可进一步计算出剪切模量和剪切强度 ...
郇勇, 张泰华
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, 1989 本文介绍了一种用于岩石应力计动态匹配试验的新方法。它基于霍布金生(Hopkinson)压杆原理。该方法的特点是:简单易行,耗费低,不仅能用于测定应力计的动态匹配系数,而且能实验测定应力计在岩石介质中的动态测量性能。该方法也可用于实验室测量一维应力波在岩石和混凝土试件中传播时的衰减规律。文中介绍了实验装置的设计原则 ...
张挺
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浙江大学学报. 农业与生命科学版. With the approval of more and more genetically modified (GM) crops in our country, GM safety management has become more important. Transgenic detection is a major approach for transgenic safety management.
颜晶莹(YAN Jingying) +4 more
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