维普中文期刊产品整合服务
4163篇 您的检索式:作者名="L Chung"
    题名 作者 年代 出处 被引量
1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
2血管紧张素转换酶抑制剂和血管紧张素受体拮抗剂的使用与2019冠状病毒疾病检测阳性之间的关系显示文摘血管紧张素转换酶抑制剂(angiotensin-converting enzyme inhibitor,ACEI)和血管紧张素受体拮抗剂(angiotensin receptor blocker,ARB)在2019新型冠状病毒疾病(coronavirus disease 2019,COVID-19)全球大流行背景下的作用备受争议。此类药物是治疗一些慢性病的必须药物,有建议停止使用这些药物.Mehta N KalraA Nowacki AS Anjewierden S Han Z Bhat p Rubio AEC Jacob M Procop GW Harrington S Milinovich A Svensson LG Jehi L Young JB Chung MK 周卫(译) 叶鹏(校) 2020中华高血压杂志2020,28,5:9
3支气管哮喘治疗的前景:长效β_2肾上腺素受体激动剂显示文摘本文复习了新的长效β_2受体激动剂福摩特罗和沙美特罗的近期文献.两药均能延长支气管哮喘患者的支气管舒张作用,但对离体组织β_2受体的结合特征各不相同。文中讨论了它们在治疗哮喘中的可能地位及其临床应用前景。Lfdahl CG Chung KF 王虹 1991国外医学(呼吸系统分册)1991,11,4:5
4A framework infrageneric classification of Carex (Cyperaceae) and its organizing principles显示文摘Phylogenetic studies of Carex L.(Cyperaceae)have consistently demonstrated that most subgenera and sections are para-or polyphyletic.Yet,taxonomists continue to use subgenera and sections in Carex classification.Why?The Global Carex Group(GCG)here takes the position that the historical and continued use of subgenera and sections serves to(i)organize our understanding of lineages in Carex,(ii)create an identification mechanism to break the~2000 species of Carex into manageable groups and stimulate its study,and(iii)provide a framework to recognize morphologically diagnosable lineages within Carex.Unfortunately,the current understanding of phylogenetic relationships in Carex is not yet sufficient for a global reclassification of the genus within a Linnean infrageneric(sectional)framework.Rather than leaving Carex classification in its current state,which is misleading and confusing,we here take the intermediate steps of implementing the recently revised subgeneric classification and using a combination of informally named clades and formally named sections to reflect the current state of our knowledge.This hybrid classification framework is presented in an order corresponding to a linear arrangement of the clades on a ladderized phylogeny,largely based on the recent phylogenies published by the GCG.It organizes Carex into six subgenera,which are,in turn,subdivided into 62 formally named Linnean sections plus 49 informal groups.This framework will serve as a roadmap for research on Carex phylogeny,enabling further development of a complete reclassification by presenting relevant morphological and geographical information on clades where possible and standardizing the use of formal sectional names.Eric H.Roalson Pedro Jiménez-Mejías Andrew L.Hipp Carmen Benítez-Benítez Leo P.Bruederle Kyong-Sook Chung Marcial Escudero Bruce A.Ford Kerry Ford Sebastian Gebauer Berit Gehrke Marlene Hahn Muhammad Qasim Hayat Mathias H.Hoffmann Xiao-Feng Jin Sangtae Kim Isabel Larridon Étienne Léveillé-Bourret Yi-Fei Lu Modesto Luceño Enrique Maguilla Jose IgnacioMárquez-Corro Santiago Martín-Bravo Tomomi Masaki Mónica Míguez Robert F.C.Naczi Anton A.Reznicek Daniel Spalink Julian R.Starr Uzma Tamara Villaverde Marcia J.Waterway Karen L.Wilson and Shu-Ren Zhang 2021Journal of Systematics and Evolution2021,59,4:3
5Low-drying-shrinkage concrete containing carbon fibers 显示文摘Chen P W Chung D D L 1996Composites Part B1996,27,34:2
6Carbon fiber reinforced concrete as an intrinsically smart concrete for damage assessment during static and dynamic loading 显示文摘Chen P W Chung D D L 1996ACI Materials Journal1996,93,4:2
7Long-term outcomes of autoimmune pancreatitis: a multicentre, international analysis显示文摘Phil A Hart Terumi Kamisawa William R Brugge Jae Bock Chung Emma L Culver László Czakó Luca Frulloni Vay Liang W Go Thomas M Gress Myung-Hwan Kim Shigeyuki Kawa Kyu Taek Lee Markus M Lerch Wei-Chih Liao Matthias L?hr Kazuichi Okazaki Ji Kon Ryu Nicolas Sc 2013Gut2013,,12:2
8Synthesis of Eu2 + -activated yttrium oxysulfide red phosphor by flux fusion method 显示文摘CHUNG L L JENG G D BI S C 2001Material Chemistry and Physics2001,71,:2
9New synthesis of amphiphilic copolymers PE-g-PEO via esterfication显示文摘A new series of high molecular weight amphi-philic graft copolymers PE-g-PEO has been prepared. The esterifications between PE-p-MS-g-MA and PEO with OH group at the chain end are carried out under different condi-tions. The compositions of these graft copolymers are studied by NMR and FTIR. It is found to be a convenient and effi-cient way to prepare high molecular weight PE-g-PEO graft copolymers.L?Yingying1, MA Zhi1,2, HU Youliang1, XU G. X.3 & CHUNG T. C.3 1. State Key Laboratory of Engineering Plastics, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Bei-jing Beijing Lab of Catalysis, Key Lab of Catalysis of China Na-tional Petroleum Corporation, Beijing 100080, China 2. Graduate School of Chinese Academy of Sciences, Beijing 100039, China 3. Department of Material Science and Engineering, Pennsylvania State University, University Park, PA 16802, USA 2003Chinese Science Bulletin2003,48,6:2
10Hough transform on reconfigurable meshes显示文摘Chung K L Lin H Y 1995Computer Vision and Image Understanding1995,61,2:2
11Carbon fiber-rein- forced concrete for traffic monitoring and weighing in motion显示文摘Zeng-Qiang Shi Chung D D L 1999Cement and Concrete Research1999,29,:1
12Analysis of sum-product decoding of low-density parity-check codes using a Gaussian approximation 显示文摘CHUNG S Y RICHARDSON T J URBANKE R L 2001IEEE Transaction on Information Theory2001,47,2:1
13Stability of Jensen Equations in the Space of Generalized Functions显示文摘Li L Chung J Kim D 2004J Math Anal Appl2004,299,:1
14Improving both bond strength and corrosion resistance of steel rebar in concrete by water immersion or sand blasting of rebar显示文摘Hou Jiangyuan Fu Xuli Chung D D L 1997Cement and Concrete Research1997,27,5:1
15Infertility and testicular defects in hormone-sensitive lipase-deficient mice显示文摘Chung S Wang SP Pan L 2001Endocrinology2001,142,10:1
16Asymmetric hollow fiber membranes prepared from miscible polybenzimidazole and polyetherimide blends显示文摘Chung T S Xu Z L 1998J Membr Sci1998,147,:1
17Effects of insulin replacement on cardiac apoptotic and survival pathways in streptozotocin-induced diabetic rats显示文摘Kuo W W Chung L C Liu C T 2009Cell Biochem Funct2009,27,7:1
18Short carbon fiber reinforced epoxy coating as a piezoresistive strain sensor for cement mortar 显示文摘Wang Xiaojun Chung D D L 1998Sensors and Actuators A : Physical1998,71,3:1
19Minimizing the total machine workload for the wafer probing scheduling problem显示文摘Pearn W L Chung S H Yang M H 2002IIE Transactions2002,34,2:1
20Cement-based electronics 显示文摘Chung D D L 2001Journal ofElectroceramics2001,6,1:1
返回顶部 每页显示:
共209页 首页 上一页 第1页 下一页 末页 /209 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费