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8786篇 您的检索式:作者名="Chung H"
    题名 作者 年代 出处 被引量
1Ion Channels in Mesenchymal Stem Cells from Rat Bone Marrow显示文摘Li GR Deng XL Sun H Chung SS Tse HF Lau CP 2006中国生物学文摘2006,20,5:18
2石油组分高分辨质谱分析进展与展望显示文摘石油是一种复杂体系,研究石油分子组成是分析化学领域的经典难题.近年来,傅里叶变换离子回旋共振质谱技术(Fourier transform ion cyclotron resonance mass spectrometry,FT-ICR MS)的发展,为从分子水平认识石油组成提供了机会,引起了石油化学界的高度关注,并被期待能在石油、石化领域的相关研究中实现重大突破.本文从质谱分辨率和电离技术方面介绍了石油样品的分析需求,总结了近几年基于FT-ICR MS技术对石油分子组成的研究进展,分析了其在应用中存在的关键技术问题及下一步研究方向,并对FT-ICR MS的发展前景给予展望.史权 张亚和 徐春明 赵锁奇 CHUNG Keng H 2014中国科学:化学2014,44,5:16
3油砂沥青改质产品中甲苯不溶物的表征显示文摘油砂沥青及其衍生产品中含有悬浮的甲苯不溶物如粘土和碳质固体颗粒,会导致后续加工过程中的结垢、催化剂失活和床层堵塞。笔者从油砂沥青衍生产品中分离出甲苯不溶物并进行了分析表征。研究发现,油砂沥青渣油中的甲苯不溶物主要是超细的硅铝酸盐粘土颗粒,结合了部分干酪根成分;焦化渣油和焦化瓦斯油储罐中沉积的甲苯不溶物类似焦炭;焦化瓦斯油中的甲苯不溶物主要是碳质有机物颗粒,但氮、氧含量相对丰富,并含少量矿物质和粘土颗粒,含氮的杂环化合物如吡咯类物质的存在可能是导致焦化瓦斯油中甲苯不溶物生成的主要因素。许志明 王宗贤 KOTLYAR L S CHUNG K H 2004石油学报(石油加工)2004,20,1:10
4Features of extrahepatic metastasis after radiofrequency ablation for hepatocellular carcinoma显示文摘BACKGROUND Extrahepatic metastasis(EHM)of hepatocellular carcinoma(HCC)is associated with poor outcomes.However,the clinical features and risk factors of EHM of HCC after radiofrequency ablation(RFA)remain unclear.AIM To elucidate the characteristics and risk factors of EHM after RFA for HCC.METHODS From January 2008 to December 2017,we retrospectively enrolled 661 patients who underwent RFA as first-line treatment for HCC at 2 tertiary hospitals.The inclusion criteria were age≥18 years,a diagnosis of HCC,and treatment-naivety.Abdominal computed tomography(CT)or magnetic resonance imaging(MRI)and alpha-fetoprotein measurements were routinely performed at 1 mo after RFA and followed-up at intervals of 3-6 mo.Univariate analyses were performed using the chi-squared test or Student’s t-test,and univariate and multivariate analyses were performed via logistic regression,as appropriate.RESULTS EHM was diagnosed in 44 patients(6.7%)during a median follow-up period of 1204 days.The 10-year cumulative rate of HCC recurrence and EHM was 92.7%and 33.7%,respectively.Initial recurrence was most often intrahepatic,and the rate of extrahepatic recurrence at initial recurrence was only 1.2%.The median time to the diagnosis of EHM was 2.68 years,and 68.2%of patients developed EHM within 2 years of the first recurrence,regardless of recurrence-free survival and 75.0%of patients developed EHM within 5 years after first recurrence.EHM was mostly diagnosed via abdominal CT/MRI in 33(75.0%)and 38 of 44 patients(86.4%)with EHM had either positive abdominal CT scan results or serum AFP level elevation.In multivariate analysis,recurrence-free survival<2 years,ablation zone/tumor size<2,and alpha-fetoprotein level>400 IU/mL were associated with a high EHM risk.CONCLUSION EHM occurs following multiple intrahepatic recurrences after RFA and combined contrast-enhanced abdominal CT and serum AFP were useful for surveillance.Patients especially with high-risk factors require close follow-up for EHM.Jae H Yoon Young J Goo Chae-Jun Lim Sung K Choi Sung B Cho Sang S Shin Chung H Jun 2020World Journal of Gastroenterology2020,26,32:3
5Parvovirus B19 induced hepatic failure in an adult requiring liver transplantation显示文摘Parvovirus B19 induced acute hepatitis and hepatic failure have been previously reported, mainly in children. Very few cases of parvovirus induced hepatic failure have been reported in adults and fewer still have required liver transplantation. We report the case of a 55-year-old immunocompetent woman who developed fulminant hepatic failure after acute infection with Parvovirus B19 who subsequently underwent orthotopic liver transplantation. This is believed to be the first reported case in the literature in which an adult patient with fulminant hepatic failure associated with acute parvovirus B19 infection and without hematologic abnormalities has been identified prior to undergoing liver transplantation. This case suggests that Parvovirus B19 induced liver disease can affect adults, can occur in the absence of hematologic abnormalities and can be severe enough to require liver transplantation.Darin S Krygier Urs P Steinbrecher Martin Petric Siegfried R Erb Stephen W Chung Charles H Scudamore Andrzej K Buczkowski Eric M Yoshida 2009World Journal of Gastroenterology2009,15,32:3
6格尔霉素降低Raf-1和AKt水平诱导神经母细胞瘤凋亡的研究显示文摘目的 :探讨格尔霉素 (GA)是否会改变对神经细胞的存活起关键作用的信号传导蛋白Raf-1和AKT的表达 ,诱导神经母细胞瘤细胞凋亡 .方法 :在不同时间内用GA处理人神经母细胞瘤细胞 (SH -sy5y,SK -N -SH ,LAN -1 ) ,MTT分析细胞存活率 ,DNA碎片ELISA流动细胞计数WesternBlot分析凋亡情况 .结果 :GA能降低Raf-1和AKT的活性 ,激活Caspase-9和Caspase-3 ,线粒体释放细胞色素C继之切割PARP ,诱导细胞凋亡 .结论 :GA可能是一种有效治疗神经母细胞瘤的药物 .胡万芹 胡明道 DAI H CHUNG 2004昆明医学院学报2004,25,2:2
7利用天然气的碳同位素比值建立热成因气模型显示文摘利用同位素模型预测甲烷、乙烷和丙烷的δ^(13)C值(干酪根/油生成气态物的程度指标),并用于指示Ⅱ型干酪根的生气特征。通过把气体的多组份动力学模型与同位素模型相结合,可得到气体组份转化率与生成温度之间的相关性。δ^(13)C_1,δ^(13)C_2和δ^(13)C_3之间的关系式利用天然气的热解模型进行限制。通过西得克萨斯Delaware和Val Verde盆地海相腐泥型页岩(Ⅱ型干酪根)生成的气体数据对同位素模型进行验证与校对。这些气体相对不受运移和生物气的混合影响,所以,气体碳同位素比值的变化能初步反映成熟度的演化程度。因此,这些数据对解释气体生成温度和来源于Ⅱ型干酪根的气体δ^(13)C值是有实际价值的。Melodye A R George E C Chung H M 刘全有 2002天然气地球科学2002,13,5:2
8Faster line detection algorithms on enhanced mesh connected arrays显示文摘Pan Y Chung H Y H 1993IEEE Proceeding-E1993,2,140:2
9Hough transform on reconfigurable meshes显示文摘Chung K L Lin H Y 1995Computer Vision and Image Understanding1995,61,2:2
10Health risk assessment of abandoned agricultural soils based on heavy metal contents in Hong Kong, the world’s most populated city显示文摘Yu Bon Man Xiao Lin Sun Yin Ge Zhao Brenda Natalia Lopez Shan Shan Chung Sheng Chun Wu Kwai Chung Cheung Ming H Wong 2010Environment International2010,,6:2
11Effects of hot extrusion parameters on the tensile properties and microstructures of SiCw- 2124Al composites 显示文摘HONG S H CHUNG K H LEE C H 1996Materials Science and Engineering A1996,206,2:2
12Initial cation stoichiometry and current-voltage behavior in Sc-doped calcium copper titanate 显示文摘CHUNG S Y LEE S I CHOI J H 2006Appl Phys Lett2006,89,19:1
13Modulation of skin collagen metabolism in aged and photoaged human skin in vivo显示文摘Chung J H Seo J Y Choi H R 2001J Invest Dermatol2001,117,5:1
14显示文摘Choi W B Chung D S Kang J H 1999Applied Physics Letters1999,75,20:1
15e myc Expression, keep the noise down显示文摘Chung H J Levens D 2005Mol Cells2005,20,2:1
16Anti-proliferating effects of ginsenoside Rh2 on MCF-7 human breast cancer cells显示文摘Oh M Choi S Chung H 1999Int J Oncol1999,14,5:1
17Inner ear anomalies in cochlear implantees: importance of radiologic measurements in the classification 显示文摘Shim H J Shill J E Chung J W 2006Otol Neurotol2006,27,6:1
18Switched-capacitor-based dc-to-dc converter with improved input current waveform显示文摘 B O A Ioinovici 1996Proc of IEEE ISCAS1996,,:1
19The clinical usefulness of (18)F-FDG PET/CT for the evaluation of lymph node metastasis in periorbital malignancies显示文摘BAEK C H CHUNG M K JEONG H S 2009Korean J Radiol2009,10,1:1
20Stem cell property of postmigratory cranial neural crest cells and their utility in alveolar bone regeneration and tooth development显示文摘Chung IH Yamaza T Zhao H 2009Stem Cells2009,27,4:1
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