Results 11 to 20 of about 2,898,968 (150)

Determination of 9 Organotins in Food Contact Materials(食品接触材料中9种有机锡的检测) [PDF]

open access: yesShipin 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
doaj   +1 more source

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]

open access: yesShipin 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
doaj   +1 more source

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]

open access: yesShipin 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
doaj   +1 more source

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]

open access: yesShipin 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
doaj   +1 more source

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]

open access: yesShipin 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
doaj   +1 more source

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]

open access: yesShipin 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
doaj   +1 more source

Establishment of Caco-2 Cell Model for Transporting Glucoside Compounds(转运葡萄糖苷类化合物的Caco-2细胞模型建立) [PDF]

open access: yesShipin kexue jishu xuebao, 2021
Caco-2 cell model for the transport of glucoside compounds was established to provide the basis for studying intestinal absorption of glucose and glucoside compounds.
LIN Jiali(林佳丽)   +2 more
doaj   +1 more source

高超声速平板边界层数值模拟及试验研究

open access: yes, 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
core   +1 more source

大容量试验系统建模方法及一键顺控方案研究 [PDF]

open access: yes, 2023
大容量试验是检验电力装备性能,保障装备安全可靠运行的重要环节。现有的大容量试验回路主要依靠人工操作,存在流程复杂、效率低且易出错的问题。针对大容量试验回路智能化控制的难题,研究建立了冲击发电机单电机短路模型和双电机并联短路模型,分析了发电机短路特性,结合典型大容量试验回路设计了一键顺控方案,提出试验回路一键顺控操作流程。通过对发电机短路模型和大容量试验回路系统的仿真 ...
戴建卓   +7 more
core   +2 more sources

RP3航空煤油斜爆轰发动机试验研究

open access: yes, 2022
在高马赫数飞行条件下,斜爆轰发动机热力学循环效率高,燃烧室长度短,是近些年国内外研究热点。目前斜爆轰发动机试验研究使用的都是氢气或者乙烯燃料,还没有使用航空煤油的试验结果。为了研究RP3航空煤油应用于斜爆轰发动机的可行性,在JF–12激波风洞上开展了冷态RP3航空煤油斜爆轰发动机自由射流试验研究,JF–12激波风洞有效试验时间50 ms。针对航空煤油点火延迟时间长的难点,提出了鼓包强制起爆新技术。模拟的飞行马赫数为9,试验气流总温为3 800 K,全局当量比为0.9。试验中获得了稳定的斜爆轰波 ...
苑朝凯   +5 more
core   +1 more source

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