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Analysis on the technical detection capacity of radioactive substances in food in China [PDF]
, 2023 To analyze the detection capacity of radioactive substances in food in China， and improve the radioactive contamination monitoring system. By studying the distribution of certified institutions and testing items and the results of proficiency assessment，
CUI Xiyong +5 more
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Research and recommendations on the current situation of analysis standards for radioactive substances in food in China [PDF]
, 2023 To improve the construction of a food safety standards system， the current status of analysis standards for radioactive substances in food in China was studied.
CUI Xiyong +4 more
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橄榄油的脂肪伴随物及其功能特性Fat concomitants of olive oil and their functional characteristics
Zhongguo youzhi, 2023 橄榄油的营养成分丰富，含有大量的不饱和脂肪酸，且油酸含量高，同时富含一些独特的脂肪伴随物。为促进橄榄油的开发利用，介绍了橄榄油的分类、物理特性及脂肪酸组成，对橄榄油中的脂肪伴随物及其功能特性进行了综述。橄榄油中含角鲨烯、橄榄苦苷、羟基酪醇、α-生育酚、β-谷甾醇、环阿屯醇等功能活性成分，这些功能活性成分赋予了橄榄油的独特风味和保护皮肤、预防心脑血管疾病、促进骨骼生长发育、抗肿瘤、防辐射、预防糖尿病等保健功效。 Olive oil is rich in nutrients, including a ...
蔡静薇1,2，武利梅1,2，张玉环1,2，李建科1,2 CAI Jingwei1,2, WU Limei1,2, ZHANG Yuhuan1,2, LI Jianke1,2
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He jishuγ辐射场的准确重构是实现辐射防护数字化的基础，也是进行辐射剂量评估与可视化仿真的前提。为了有效解决目前核设施现场由于高梯度非均匀辐射源项分布导致的三维γ辐射场重构偏差较大的切实问题，本文创新性地提出基于贝叶斯信息准则建立的非均匀源活度分布模型择优方法，并将最优模型用于三维γ辐射场的重构。结果表明：该方法在高活度梯度、高剂量率梯度情形下的辐射场重构准确度显著优于克里金插值方法；在核设施实际场景的三维辐射场重构案例中，测试集剂量率重构结果与实测值平均相对偏差仅为12.69%，低于克里金插值结果的85.40%。
刘 立业 +5 more
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Plant polyphenols that consist of flavonoids, tannins, phenolic acids and anthocyanin are widely found in types of plants in their hulls, xylem, leaves, roots and fruits.
Wang, Qing-rong
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He jishu放射性惰性气体监测是核设施流出物监测的重要组成部分，需要连续监测和定期采样。放射性惰性气体监测仪体积大、不易拆卸，且国内尚无现场校准装置用于保证监测仪器的量值准确可靠。为解决现场85Kr惰性气体监测仪校准困难以及缺乏量值传递标准的问题，本文基于气体扩散理论设计了85Kr现场校准方法，并确定了85Kr的约定量值，研制了85Kr现场校准装置，并对其性能进行了测试，与国内标准装置在5%以内符合良好。85Kr惰性气体监测仪现场校准装置可提供85Kr活度浓度范围为（1.0×105~1.0×1010） Bq·m-3，
王 桢 +6 more
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Research Progress of Nuclear Energy Batteries for Ocean Observation Equipment [PDF]
For the ocean observation equipment，nuclear power supply has irreplaceable advantages. In recent years，due to the urgent need to develop all-round and multi-dimensional ocean observation and exploration equipment in China，the radioactive thermoelectric ...
Aixiang YANG +4 more
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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
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Ameliorative Effect of Rosa roxbunghii Tratt. Juice Concentrate on Ionizing Radiation-Induced Redox Imbalance and Tissue Damage [PDF]
To explore an ideal alternative approach for radiation protection, this study quantified vitamin C (≥ 2.5%) and total flavonoids (≥ 2%) in Rosa roxbunghii Tratt. juice concentrate.
KUANG Mingqing, BEI Qi, LIU Yingxin, ZHU Jiaqing, LI Xuefeng, WU Bojian, LU Jike, HAO Limin
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He jishu塑料闪烁微球（Plastic Scintillation microspheres，PSm）是一种新型闪烁材料，在放射性核素测量领域显示出良好的应用前景。本研究利用Hidex 300SL液闪计数器，研究了不同测量条件对PSm的本底计数率和计数效率的影响及其规律。结果表明：PSm与水混合后产生弱化学发光和光致发光干扰信号，可通过避光措施消除。随着PSm用量的增加，背景计数率呈正相关增加；随着PSm高度的增加，计数效率呈正相关提高。此外，液闪瓶材质对PSm测量的影响较小，其中，使用20 ...
张 辉, 王 亚东, 马 彦, 马 莉娜
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