[Enrichment and analysis of trace microcystins in environmental water based on metal-organic framework HKUST-1 functionalized polymer monolithic column]. [PDF]
Se PuZheng JY, Zeng HY, Wu XP.
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[Iron porphyrin metal-organic framework material for efficient enrichment of earthworm polypeptides]. [PDF]
Se PuZhan KS, Tang MZ, Lin Y, Ni LJ, Yu LS.
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[Simultaneous determination of three tryptamines in foods by ultra performance liquid chromatography-tandem mass spectrometry coupled with hydrophilic column separation]. [PDF]
Se PuLiao XL +7 more
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Haiyang gongcheng zhuangbei yu jishu为研究内流作用下悬臂取水管的动力稳定性，采用流-固耦合 （FSI）开展数值研究，并与文献中的试验数据进行对比，以验证模型的准确性。结果表明，当内流速度超过临界值时，管道发生以一阶模态为主的颤振失稳，呈现大振幅颤振与小振幅抖振共存的复合振动模式。位移与应变分布在自由端振幅最大，近固定端应变能更高，且响应呈周期性波动，反映系统存在非稳态能量交换。流场分析揭示，取水管入口存在强烈吸入效应，伴随显著加速与降压，压降符合Kuiper修正负压范围。涡量场显示非对称涡结构随振动同步演化，可能诱发周期性侧向激励 ...
贾志超, 刘明月, 郭琳
doaj
[Determination of six whitening ingredients in cosmetics by ultra performance liquid chromatography coupled with photodiode array detector and corona charged aerosol detector]. [PDF]
Se PuLi X +8 more
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[Determination of 13 prohibited alkaloids in essential oil-based cosmetics by ultra performance liquid chromatography-tandem mass spectrometry combining QuEChERS purification]. [PDF]
Se PuLiu Z +6 more
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, 2016 携带颗粒的湍流二相流广泛存在于环境流动中,如大气层暖云中雨滴的形成,沙尘暴中的风沙二相流等。湍流二相流的复杂性在于其多尺度特性:除了湍流自身的多尺度时空结构外,颗粒可引入新的尺度并与湍流最小涡尺度分离,例如颗粒直径尺度小于柯尔莫格洛夫长度尺度。湍流二相流的数值模拟对分析流动机理,预测环境流动具有重要意义。近年来,大涡模拟方法正逐渐发展为湍流二相流数值模拟的主要工具之一,其优点是能预测多尺度的湍流结构与惯性颗粒的非定常相互作用。对单相湍流而言,大涡模拟的基本原理是求解滤波的大尺度运动方程 ...
晋国栋
core
[Determination of 65 synthetic cannabinoids in whole blood by QuEChERS-ultra performance liquid chromatography- mass spectrometry]. [PDF]
Se PuXi Z +6 more
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, 2002 应用紧致有限差分－－Fourier谱方法求解三维不可压N-S方程组，数值研究尾迹型流动的三维演化和旋涡位错。计算中在来流剖面中引入局部展向非均匀性。数值结果表明流动的不稳定性发展导致三维旋涡涡街流场。局部非均匀性引起涡街间(沿展向)在频率、相位及强度上的差异。在非均匀区中产生并形成大尺度链状旋涡位错结构 ...
凌国灿, 熊忠民
core
[Experimental curriculum design for undergraduates based on the improvement of scientific research abilities： taking determination of pyrimidine fungicides in soil by QuEChERS-gas chromatography-mass spectrometry as an example]. [PDF]
Se PuLyu F, Shan X, Zhao R, Zheng W.
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