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疏水涂层对内螺纹强化管表面污垢生长的影响

工程热物理学报 2022年第9期43卷 2457-2465页

作者：万志豪沈朝王源王新雷哈尔滨工业大学建筑学院黑龙江省寒地城乡人居环境科学重点实验室哈尔滨150001 清华大学建筑学院建筑技术科学系北京100084 伊利诺依大学香槟分校农业与生物工程系美国61801

内螺纹强化管在增强换热的同时,其结垢潜力相比于光管也大幅提高。通过在换热表面涂覆疏水涂层,可以降低污染物与表面间的相互作用力,从而抑制污垢生长。一般地,涂层材料导热性能较差,该特性在现有研究中未得到有效考虑。本文测试了洁... 详细信息

内螺纹强化管在增强换热的同时,其结垢潜力相比于光管也大幅提高。通过在换热表面涂覆疏水涂层,可以降低污染物与表面间的相互作用力,从而抑制污垢生长。一般地,涂层材料导热性能较差,该特性在现有研究中未得到有效考虑。本文测试了洁净状态下3根涂层强化管的热工水力特性,发现表面改性后系统循环压降普遍升高,强化管总传热系数下降了25%~44%。考虑到涂层为一种特殊“污垢”,类比污垢热阻的计算方法,求得涂层热阻。参考实际工程工况,在0.9 m·s流速下,开展了近1000 h的混合污垢实验,结果表明低表面能的涂层强化管其诱导期显著延长,但不同涂层的抑垢效果各异。其中,涂层B强化管在结垢后其综合热阻仍小于无涂层强化管,具有实际应用价值。

关键词：疏水涂层内螺纹强化管混合污垢涂层热阻综合热阻

Alteration in Gene Expression Prof ile and Biological Behavior in Human Lung Cancer Cell Line NL9980 by Nm23-H1 Gene Silencing

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中国肺癌杂志 2009年第6期12卷 519-520页

作者： Wei MA Yu FAN Li MA Jun CHEN Sen WEI Zhigang LI Hongyu LIU Haisu wan zhihao WU Qinghua ZHOU Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment Tianjin Lung Cancer Institute Tianjin Medical University Hospital Tianjin 300052 China

Background and Objective Lung cancer is the leading cause of cancer death in both men and women. Tumor metastasis is an essential aspect of lung cancer progression. Nm23-H1 is

关键词：肺癌癌细胞扩散医学治疗

Acquired Resistance Mechanisms of Lung Adeno-carcinoma to Gef itinib

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中国肺癌杂志 2009年第6期12卷 518-519页

作者： Ming DONG Yu FAN Li MA Jun CHEN Seng WEI Zhigang LI Hongyu LIU Haisu wan zhihao WU Qinghua ZHOU Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment Tianjin Lung Cancer Institute Tianjin Medical University Hospital Tianjin 300052 China

Background and Objective Lung cancer, which has been proved to have fastest increasing rate of morbidity and mortality,

关键词：肺癌临床治疗疗效

Noninvasive Assessment of Using Bioluminescent Imaging(BLI) to Research Methylseleninic Acid' Effect on the Growth And Spontaneous Metastasis in Human High-Metastatic Large Cell Lung Cancer Cell Line L9981

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中国肺癌杂志 2009年第6期12卷 505-506页

作者： Yuanrong REN Yu FAN Li MA Jun CHEN Seng WEI Zhigang LI Hongyu LIU Haisu wan zhihao WU Qinghua ZHOU Tianjin Key Laboratory o fLung Cancer Metastasis and Tumor Microenvironmen Tianjin Lung Cancer Institute Tianjin Medical University Hospital Tianjin 300052 China

Background and Objective The disease incidence and mortality of lung cancer has been increased dramatically for recent 50 years in many countries in the world. In2002, the new cases

关键词：肺癌医学化疗疗效

Lung Cancer Metastatic Related Genes by Suppression Subtractive Hybridization

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中国肺癌杂志 2009年第6期12卷 502-503页

作者： Juan LI Yu FAN Li MA Jun CHEN Sen WEI Zhigang LI Hongyu LIU Haisu wan zhihao WU Qinghua ZHOU Tianjin Key Laboratory o fLung Cancer Metastasis and Tumor Microenvironment Tianjin Lung Cancer Institute Tianjin Medical University Hospital Tianjin 300052 China

Background and Objective The invasion and metastasis are not only the malignant markers and characteristics of lung cancer, but also the leading cause of failure to treatment and patient’

关键词：肺癌临床治疗化疗

The Study on the Function of BAG-1Gene and its Related Signaling Pathway in Human Lung Cancer Cells

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中国肺癌杂志 2009年第6期12卷 509-510页

作者： Yonggang LIANG Yu FAN Li MA Jun CHEN Sen WEI Zhigang LI Hongyu LIU Haisu wan zhihao WU Qinghua ZHOU Tianjin Key Laboratory o fLung Cancer Metastasis and Tumor Microenvironment Tianjin Lung Cancer Institute Tianjin Medical University Hospital Tianjin 300052 China

Background and Objective Apotosis is a programmed cell death process which can be induced by ectoor intra-cellular signals. Recent study indicates that genesis and development

关键词： BAG-1 肺癌癌细胞临床

Effects of Methylseleninic Acid on the Proliferation and Cell Cycle in Human High Metastatic Large Cell Lung Cancer Cell Line L9981 and Its Molecular Mechanism

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中国肺癌杂志 2009年第6期12卷 498-499页

作者： Xiaorong ZHONG Yu FAN Li MA Jun CHEN Sen WEI Zhigang LI Hongyu LIU Haisu wan zhihao WU Qinghua ZHOU Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment Tianjin Lung Cancer Institute Tianjin Medical University Hospital Tianjin 300052j China

Background and Objective Lung cancer is the rst killer of human being in the whole world. Recently, although many treatment strategies have been developed, the anti-cancer effects

关键词：肺癌临床治疗疗效

The Expression Levels of KAI1 Gene and Its Mechanism in Human Lung Cancer Cell Lines

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中国肺癌杂志 2009年第6期12卷 499-501页

作者： Ying ZHAO Yu FAN Li MA Jun CHEN Sen WEI Zhigang LI Hongyu LIU Haisu wan zhihao WU Qinghua ZHOU Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment Tianjin Lung Cancer Institute Tianjin Medical University Hospital Tianjin 300052 China

Background and Objective Lung cancer is one of the most malignant cancers which is hazarding the people’s health and life in the world. In the past half century, the incidence and mortality

关键词：肺癌临床诊断治疗

Methylseleninic Acid on The Apoptosis Induction and Invasion Inhibition in Human High-Meta-static Large Cell Lung Cancer Cell Line L9981

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中国肺癌杂志 2009年第6期12卷 501-502页

作者： Jiewei LIU Yu FAN Li MA Jun CHEN Sen WEI Zhigang LI Hongyu LIU Haisu wan zhihao WU Qinghua ZHOU Tianjin Key Laboratory o fLung Cancer Metastasis and Tumor Microenvironment Tianjin Lung Cancer Institute Tianjin Medical University Hospital Tianjin 300052 China

Background and Objective Lung cancer, which has been proved to have fastest increasing rate of morbidity and mortality, appears to be one of the most dangerous malignant tumor that

关键词：肺癌癌细胞扩散化疗