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人血清中吗啡含量的高效液相色谱法测定

分析测试学报 2003年第2期22卷 78-80页

作者：张文珠张虹刘霞陈立仁蒋生祥中国科学院兰州化学物理研究所西北天然药物中心甘肃兰州730000

采用C18 色谱柱 ,体积比70∶30的甲醇 -0.02mol·L-1 磷酸二氢钾缓冲液 (含0.001mol·L-1 三乙胺 ,pH=6.60)作流动相 ,紫外检测波长230nm ,可待因作内标 ,建立了反相高效液相色谱法测定人血清中吗啡含量的方法 ;对流动相、样品预处理和... 详细信息

采用C18 色谱柱 ,体积比70∶30的甲醇 -0.02mol·L-1 磷酸二氢钾缓冲液 (含0.001mol·L-1 三乙胺 ,pH=6.60)作流动相 ,紫外检测波长230nm ,可待因作内标 ,建立了反相高效液相色谱法测定人血清中吗啡含量的方法 ;对流动相、样品预处理和储备液稳定性进行了考察 ,提出用乙酸乙酯直接萃取血清中的吗啡 ,所得样品稳定性好 ,萃取回收率为74 %～80 %;该法快速 ,适于生物样品中吗啡含量的测定。

关键词：吗啡血清反相高效液相色谱法

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霍尔果斯河水生生物现状初步调查

水生态学杂志 2008年第6期28卷 39-43页

作者：蔡林钢李红张人铭阿达克刘建新疆维吾尔自治区水产科学研究所新疆乌鲁木齐830000

霍尔果斯河为中国和哈萨克斯坦的界河,人类从没有对其进行过水生生物的研究,为了合理开发利用该河水资源,保护生态环境,2007年6～7月调查组对霍尔果斯河进行了2次调查,共采集浮游生物样本20瓶,底栖动物样本5瓶,鱼类标本164尾。通过野外... 详细信息

霍尔果斯河为中国和哈萨克斯坦的界河,人类从没有对其进行过水生生物的研究,为了合理开发利用该河水资源,保护生态环境,2007年6～7月调查组对霍尔果斯河进行了2次调查,共采集浮游生物样本20瓶,底栖动物样本5瓶,鱼类标本164尾。通过野外物种样本采集和室内分析研究,表明:霍尔果斯河有浮游植物3门34种属,浮游动物5个种属,底栖动物10种,水生植物仅2个种属,鱼类10种(其中土著鱼类5种)。由于该河为边境界河,人烟罕至,水域生态环境保持原始状态,鱼类资源丰富。

关键词：霍尔果斯河水生生物分布

Preparation and study of novel mid-to-low-temperature phase-change molten salts

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Science China Technological Sciences 2025年

作者： Chenxing ren Yifan WANG Xin HE Chenghang ZHENG Xiang GAO State Key Laboratory of Clean Energy Utilization Zhejiang University Institute of Carbon Neutrality Zhejiang University Baima Lake Laboratory Zhejiang University

Molten salts is a promising medium for heat storage and heat transfer due to their advantages of low cost, low steam pressure, high energy storage density and wide temperature range. In this paper, a new phase change mixture of molten salts with KNO3, NaNO3, ZnCl2, NaF, Na2CO3, NaCl, and MgO as materials has been prepared through a plenty of experiments. The experimental results show that the melting point of some molten salts can be reduced to 202.9°C, and the decomposition temperature can reach 701.3°C. In addition, its thermophysical properties, including specific heat, viscosity and thermal stability, were measured and analyzed. The average specific heat of some molten salts is as high as 2.53 J/（g K）, and the average thermal conductivity is as high as 0.77 W/（m K）. In the 4-day short-term thermal stability test, the fluctuation of each parameter is minimal, and the overall thermal physical property is relatively stable. Compared with the traditional phase change molten salt, the new hybrid molten salt has a significantly lower melting point, a further improvement in the decomposition temperature, specific heat and other comprehensive thermophysical properties, and a better overall economy, which has important application value in heat transfer and energy storage.

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瑞昌市大壤灌区农业干旱成因与抗旱对策

现代农业科技 2014年第3期 217-218页

作者：吴高伟方少文李洪任余雷江西省水利科学研究院江西南昌330029

以江西省瑞昌市大壤灌区为例,着重分析江西省灌区农业干旱的成因,提出灌区抗旱的对策,以期为从事相关研究人员提供有益借鉴。

关键词：农业干旱成因抗旱对策江西瑞昌大壤灌区

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基于MATLAB的飞行仿真

计算机仿真 2006年第6期23卷 57-61页

作者：张镭姜洪洲齐潘国李洪人哈尔滨工业大学电液伺服仿真及试验系统研究所黑龙江哈尔滨150001

该文介绍了一种小型飞机飞行模拟器飞行仿真模型的开发过程。建立了非线性的动力学方程和起落架模型,采用插值方法生成气动系数,利用S imu linkTM中航空工具箱构建环境模型,使用StateflowTM表述逻辑关系。气动数据来源于DATCOM。较为完... 详细信息

该文介绍了一种小型飞机飞行模拟器飞行仿真模型的开发过程。建立了非线性的动力学方程和起落架模型,采用插值方法生成气动系数,利用S imu linkTM中航空工具箱构建环境模型,使用StateflowTM表述逻辑关系。气动数据来源于DATCOM。较为完整的模型,使得仿真整个飞行的过程,滑跑,起飞,巡航,降落得以实现。进行了飞机起飞和降落阶段的仿真,结果表明模型可用。非线性的数学模型能够比较真实地反映飞机的实际特性。仿真模型开发的成功为模拟器的建立打下了基础。

关键词：飞行仿真航空工具箱起落架模型气动系数生成起飞降落

Statistical analysis on the validity of the cold plasma approximation for chorus waves based on Van Allen Probe observations and their effects on radiation belt electrons

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Earth and Planetary Physics 2025年第1期9卷 159-170页

作者： AoJun ren Jiang Yu Jing Wang ZuZheng Chen XiaoMan liu Planetary Environmental and Astrobiological Research Laboratory(PEARL) School of Atmospheric SciencesSun Yat-sen UniversityZhuhai Guangdong 519000China

Theoretical analysis has demonstrated that the dispersion relation of chorus waves plays an essential role in the resonant interaction and energy transformation between the waves and magnetospheric *** quantitative analyses often simplified the chorus dispersion relation by using the cold plasma ***,the applicability of the cold plasma assumption is doubtful,especially during geomagnetic *** here present a systematic statistical analysis on the validity of the cold plasma dispersion relation of chorus waves based on observations from the Van Allen Probes over the period from 2012 to *** statistical results show that the observed magnetic field intensities deviate substantially from those calculated from the cold plasma dispersion relation and that they become more pronounced with an increase in geomagnetic activity or a decrease in background plasma *** region with large deviations is mainly concentrated in the nightside and expands in both the radial and azimuthal directions as the geomagnetic activity increases or the background plasma density *** addition,the bounce-averaged electron scattering rates are computed by using the observed and cold plasma dispersion relation of chorus *** with usage of the cold plasma dispersion relation,usage of the observed dispersion relation considerably lowers the minimum resonant energy of electrons and lowers the scattering rates of electrons above tens of kiloelectronvolts but enhances those ***,these differences are more pronounced with the enhancement of geomagnetic activity or the decrease in background plasma density.

关键词： chorus waves cold plasma approximation dispersion relations scattering rates

Privacy-preserving explainable AI: a survey

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Science China(Information Sciences) 2025年第1期68卷 23-56页

作者： Thanh Tam NGUYEN Thanh Trung HUYNH Zhao ren Thanh Toan NGUYEN Phi Le NGUYEN hongzhi YIN Quoc Viet Hung NGUYEN School of Information and Communication Technology Griffith University School of Computer and Communication Sciences Ecole Polytechnique Federale de Lausanne Faculty of Mathematics and Computer Science University of Bremen Faculty of Information Technology HUTECH University Department of Computer Science Hanoi University of Science and Technology School of Electrical Engineering and Computer Science The University of Queensland

As the adoption of explainable AI(XAI) continues to expand, the urgency to address its privacy implications intensifies. Despite a growing corpus of research in AI privacy and explainability, there is little attention on privacy-preserving model explanations. This article presents the first thorough survey about privacy attacks on model explanations and their countermeasures. Our contribution to this field comprises a thorough analysis of research papers with a connected taxonomy that facilitates the categorization of privacy attacks and countermeasures based on the targeted explanations. This work also includes an initial investigation into the causes of privacy leaks. Finally, we discuss unresolved issues and prospective research directions uncovered in our analysis. This survey aims to be a valuable resource for the research community and offers clear insights for those new to this domain. To support ongoing research, we have established an online resource repository, which will be continuously updated with new and relevant findings.

关键词： privacy-preserving explainable AI privacy attacks privacy defences PrivEx PPXAI

HS-GC/MS方法检测入境废塑料中10种VOCs

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福建分析测试 2017年第5期26卷 1-5页

作者：唐泓姜晓黎任晓梦梁鸣福州大学石油化工学院福建福州350116 福建出入境检验检疫局检验检疫技术中心福建省检验检疫技术研究重点实验室福建福州350015 福州市产品质量检验所福建福州350008

本文针对入境废塑料所存在的异味现象,建立了HS-GC/MS(顶空进样气相色谱质谱)法检测10种挥发性有机物质(VOCs)的检测方法,从而更好地检测入境废塑料中的挥发性有毒有害物质,旨在防止含有有毒有害物质的废塑料入境,通过对检测方法的优化... 详细信息

本文针对入境废塑料所存在的异味现象,建立了HS-GC/MS(顶空进样气相色谱质谱)法检测10种挥发性有机物质(VOCs)的检测方法,从而更好地检测入境废塑料中的挥发性有毒有害物质,旨在防止含有有毒有害物质的废塑料入境,通过对检测方法的优化,该方法可以对入境废塑料中VOCs的种类进行定性,并能对所检出的VOCs进行准确定量。本方法中10种VOCs各组分的回收率介于92.8%~113.5%之间,相对标准偏差(RSD)介于0.98%~8.59%之间。方法定量限为0.05mg/kg。

关键词：废塑料固体废物危险废物 VOCs 顶空进样气相色谱质谱联用

Improved Bayesian Network-Based Risk Model and Its Application in Disaster Risk Assessment

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International Journal of Disaster Risk Science 2018年第2期9卷 237-248页

作者： Ming li Mei hong ren Zhang Research Center of Ocean Environment Numerical Simulation Institute of Meteorology and OceanographyNational University of Defense Technology Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disaster Nanjing University of Information Science and Technology

The application of Bayesian network(BN) theory in risk assessment is an emerging trend. But in cases where data are incomplete and variables are mutually related, its application is restricted. To overcome these problems, an improved BN assessment model with parameter retrieval and decorrelation ability is ***, multivariate nonlinear planning is applied to the feedback error learning of parameters. A genetic algorithm is used to learn the probability distribution of nodes that lack quantitative data. Then, based on an improved grey relational analysis that considers the correlation of variation rate, the optimal weight that characterizes the correlation is calculated and the weighted BN is improved for decorrelation. An improved risk assessment model based on the weighted BN then is built. An assessment of sea ice disaster shows that the model can be applied for risk assessment with incomplete data and variable correlation.

关键词： Bayesian network Genetic algorithm Grey relational analysis Risk assessment