Results 11 to 20 of about 9,345 (121)
Zhongguo youzhi, 2023 为了解山东省市售花生及其制品中黄曲霉毒素B1（AFB1）污染状况，评估其暴露水平及潜在的健康风险，并为有关部门采取控制措施提供依据，2015—2020年于山东省16市生产环节、流通环节（农贸市场、商店）随机采集花生、花生酱、花生油共计246份样品，采用高效液相色谱-柱后衍生法测定其AFB1含量，计算AFB1平均膳食暴露量和暴露限值（MOE），评估山东省市售花生及其制品中AFB1膳食暴露风险。结果表明，花生及其制品中AFB1总检出率为28.46%，不合格率为7.72 ...
董文亚1，陈晨1，赵秀兰1，杨永浩1，赵金山2，肖培瑞2，褚遵华2 DONG Wenya1, CHEN Chen1, ZHAO Xiulan1, YANG Yonghao1, ZHAO Jinshan2, XIAO Peirui2, CHU Zunhua2
doaj +1 more source
中西医结合护理, 2023 This paper summarized the experience of infection prevention and control in fighting against COVID-19, and explores the working mode of infection prevention and control at the isolation sites of the similar mobile cabin hospital based on the ...
XIAO Chunyu (肖春玉) +3 more
doaj +1 more source
中西医结合护理, 2023 The risk assessment of infection and infectious diseases control is a very important part of public health control. The large population base has placed an enormous burden on prevention and control of infection and infectious diseases in China.
MA Jinghan (马菁浛) +6 more
doaj +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2017 研究过硫酸盐降解水体中氨氮等含氮化合物的能力，必须掌握能够同时监测水体中以氨氮为代表的含氮化合物以及过硫酸根含量的分析方法.建立了一种同时测定湖水中氨氮和过硫酸根的双系统离子色谱法.过硫酸根在一定的光、热、过渡金属离子条件下可分解水体中的氨氮.通过双系统离子色谱，分别以甲烷磺酸和氢氧化钾为淋洗液，抑制电导检测.结果表明：该方法氨氮检出限为0.005 mg• L-1，过硫酸根检出限为0.009 mg • L-1，相对标准偏差均小于1.78%，加标回收率为98.2%~103.5%，为环境实时监测提供了方便 ...
QIRongping(戚荣平) +5 more
doaj +1 more source
核医学废水中镥
Fushe yanjiu yu fushe gongyi xuebao本研究合成了一种磁性金属有机框架淀粉样纤维（M-UiO-66-NH2/AF）气凝胶，用于高效吸附核医学废水中的镥-177。通过原子力显微镜、透射电子显微镜、扫描电子显微镜、傅里叶变换红外光谱仪、X射线衍射仪、振动样品磁强计和物理吸附仪等多种表征手段，对其形貌、结构和组成进行了详细分析。结果表明，该气凝胶呈均匀且高度多孔的结构，质地超轻且坚固，密度约为30 mg/cm3。其对Lu-DOTA-TATE吸附效率最高可达92%，且在60 min内可达到吸附平衡。吸附动力学数据与拟二阶模型拟合良好 ...
王 欢, 石 岑, 尹 亮亮, 吉 艳琴
doaj +1 more source
Study on Appropriate Values of Minerals in Infant and Follow-Up Formula Standard of China(我国婴幼儿配方食品标准中矿物质适宜范围值探讨) [PDF]
Shipin kexue jishu xuebao, 2018 The appropriate values of minerals of infant and follow-up formula in China were studied to ensure the safe and nutrition of infants and young children and to refer the infant and follow-up formula standard revision.
LIANG Dong(梁栋) +6 more
doaj +1 more source
The analysis of decalin pyrolysis property under supercritical conditions(十氢萘的超临界裂解性能分析)
Zhejiang Daxue xuebao. Lixue ban, 2014 以十氢萘为吸热型碳氢燃料的模型化合物，研究其在550~610 ℃和0. 1~3. 5 MPa条件下的热裂解过程. 实验表明：不同温度（特别是相对较高的590和610 ℃）下，十氢萘在0. 1~2. 0 MPa压力下的转化率增加较为显著；十氢萘热裂解的主要气体产物有甲烷、乙烷、乙烯、丙烷、丙烯和碳原子数大于3的组分(C3+)等；在相同温度条件下，甲烷、乙烯的含量随压力增加而降低；乙烷、丙烷、丙烯和C3+的含量随压力增加而增加.裂解的气相产物中烯烃含量随温度升高而降低.液相产物主要包括环戊烷类、环戊烯类 ...
XINGYan(邢燕) +2 more
doaj +1 more source
He jishu采用蒙特卡罗方法模拟辐射诱导DNA损伤过程，通过获得的细胞水平数字化损伤产额评估空间辐射环境生物学效应。基于空间环境中的主要辐射来源，结合蒙特卡罗损伤模拟程序（Monte Carlo Damage Simulation，MCDS），首先针对单能状态下的质子、氦离子、碳离子、氧离子、硅离子和铁离子设置了10~105 MeV不等间隔的5个能量点，同时选择典型太阳质子事件能谱以及太阳极小时和极大时银河宇宙射线中的主要粒子能谱作为辐射源项代表，分别进行了DNA双链断裂（Double Strand Breaks ...
齐 婕, 闫 庆倩
doaj +1 more source
Fear in Public Policy Compliance: Citizens' Response to Crisis‐Induced Policies
European Policy Analysis, Volume 12, Issue 2, Spring 2026.ABSTRACT This article brings together social psychology and public policy literature in a mixed‐methods research design to explore how fear influences non‐compliance with challenging policies during crises. Building on Terror Management Theory, we argue that fear affects individual citizens' compliance tendencies.
Stella Ladi +3 more
wiley +1 more source
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Cost‐effective and efficient non‐noble‐metal catalysts for selective lignin hydrogenolysis remain elusive, representing a significant challenge in biorefinery. Here, we prepared a nitrogen‐doped carbon supported CoNi bimetallic catalyst, which was successfully derived from zeolitic imidazolate framework (ZIF) via high‐temperature pyrolysis ...
Xingwei Luo +3 more
wiley +1 more source