Results 11 to 20 of about 34,242 (171)
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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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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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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城市建设理论研究—市政工程, 2022 论文对单掺粉煤灰自密实混凝土进行了坍落扩展度试验、T500试验、J环扩展度试验和GTM筛稳定性试验。结果表明：随着粉煤灰掺量增大，粉煤灰自密实混凝土坍落扩展度和J环扩展度呈先增后减的趋势，表明粉煤灰对自密实混凝土的流动性具有改善作用；粉煤灰掺量为20%时，粉煤灰自密实混凝土坍落扩展度和J环扩展度达到峰值587mm和571mm；T500随着粉煤灰掺量增大呈先减后增的趋势，表明粉煤灰的掺入可以提高自密实混凝土对多筋结构的适用性；SR结果表明粉煤灰的掺入可以改善自密实混凝土的抗离析性。
赵 建国
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城市建设理论研究—建筑结构, 2022 论文针对煤矸石大量堆积占用土地、污染环境等问题，制备了水泥稳定煤矸石-碎石路面基层混合料，进行了击实试验、无侧限抗压强度试验和劈裂强度试验。试验结果表明：随着煤矸石替代率的增加，试件的最佳含水量增大，最大干密度降低，混合料的强度呈减小趋势，表明煤矸石的掺入对混合料的无侧限抗压强度和劈裂强度有不利影响。随着养生龄期的延长和水泥掺量的增大，混合料的强度呈增长趋势。7d龄期时，水泥掺量为5%，煤矸石替代率为50%时，混合料的无侧限抗压强度达到4.81MPa，满足中国二级及二级以下公路的技术要求。根据试验结果 ...
赵 建国
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Effects of Human Gut Microflora on Stability of Wine Anthocyanins in vitro(体外模拟人肠道微生物对葡萄酒花色苷稳定性的影响) [PDF]
Shipin kexue jishu xuebao, 2020 The influence of intestinal microflora on the stability of wine anthocyanins and the relationship between anthocyanin structure and stability were analyzed, which is helpful for understanding the digestion and absorption of anthocyanins and improving ...
LIU Yangjie(刘杨洁) +4 more
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基于改进CNN-BiLSTM模型和地磁监测数据的多时间长度GIC预测
Kongjian kexue xuebao太阳风暴在电力系统网络中驱动产生的GIC会影响电力设备和系统的安全运行, 严重时还会引发大面积停电事件. 预测电网GIC水平能够为电力系统保护措施提供重要参考, 然而对这方面的研究仍显不足. 为了解决该问题, 将卷积神经网络(CNN)与双向长短时记忆(BiLSTM)以及注意力机制相结合, 利用空间天气的相关监测信息, 提出了大规模电网GIC多时间长度的预测方法.
蓝 东亮 +6 more
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Gaoya dianqi, 2022 故障电流试验是晶闸管换流阀运行型式试验中重要的试验项目之一，国内外对故障电流施加方式的研究已较为深入，但对电流过零后如何立即施加恢复电压的试验方案则研究较少。通过研究国内外故障电流试验回路的发展现状，文中提出了一种采用工频电压发生器施加恢复电压的试验回路，介绍了其施加预期恢复电压的试验方法，计算确定了试验回路设备的参数，最后通过仿真验证了单波次和多波次故障电流试验中恢复电压施加方案的可行性。文中的研究成果已成功应用于某公司自主建设的晶闸管换流阀故障电流试验系统，并开展了晶闸管换流阀组件的故障电流试验 ...
王杰峰, 任军辉, 张树楠, 曹洋
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