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| 1 | A new class of scrambling transformation and its application in the image information covering显示文摘This paper studies two kinds of nonlinear transformations, namely the higher-dimensional Arnold transformation and the higher-dimensional Fibonacci Q-transformation and discusses the scrambling action of the two transformations focusing on the phase space of the digital images. A sufficient and necessary condition that a matrix transformation of digital image has periodicity is given. The results show that the two transformations have potential application in the storage and transportation of image information for the purpose of information security. | 齐东旭 邹建成 韩效宥 | 2000 | Science China(Technological Sciences)2000，43，3： | 77 |
| 2 | Effect of Graphene Nanoplatelets addition on mechanical properties of pure aluminum using a semi-powder method显示文摘In recent years, graphene has attracted considerable research interest in all fields of science due to its unique properties. Its excellent mechanical properties lead it to be used in nano-composites for strength enhancement. This paper reports an Aluminum–Graphene Nanoplatelets(Al/GNPs)composite using a semi-powder method followed by hot extrusion. The effect of GNP nano-particle integration on tensile, compressive and hardness response of Al is investigated in this paper. It is demonstrated that 0.3 wt% Graphene Nanoplatelets distributed homogeneously in the matrix aluminum act as an effective reinforcing filler to prevent deformation. Compared to monolithic aluminum(in tension), Al–0.3 wt% GNPs composite exhibited higher 0.2% yield strength(+14.7%), ultimate tensile strength(+11.1%) and lower failure strain( -40.6%). Surprisingly, compared to monolithic Al(in compression), Al–0.3 wt% GNPs composite exhibited same 0.2% compressive yield strength and lower ultimate compression strength(- 7.8%),and lower failure strain(- 20.2%). The Al–0.3 wt% GNPs composite exhibited higher Vickers hardness compared to monolithic aluminum(+11.8%).Scanning electron microscopy(SEM), Energy-Dispersive X-ray Spectroscopy(EDS) and X-ray diffraction(XRD) were used to investigate the surface morphology, elemental percentage composition, and phase analysis, respectively. | Muhammad Rashad Fusheng Pan Aitao Tang Muhammad Asif | 2014 | Progress in Natural Science:Materials International2014，24，2： | 52 |
| 3 | 塔里木盆地塔北东部下奥陶统基质白云岩的稀土元素特征及其成因显示文摘白云岩成因机制的核心问题之一是白云石化流体的来源。本文选择塔北东部地区下奥陶统蓬莱坝组白云岩、云质灰岩作为研究对象,在沉积学和岩石学基础上对基质白云岩的稀土元素地球化学特征进行了分析研究。结果表明,白云岩、云质灰岩中Sc、Th、Hf、Zr等元素的含量远远低于这些元素在陆源沉积物中的含量,并且Th、Zr的含量与Y/Ho比值间不具有明显的正相关关系,La的正异常、较高的Y/Ho比值等特征均表明塔北东部下奥陶统蓬莱坝组碳酸盐岩形成的环境为未受陆源物质混染的浅海相沉积。而白云岩负Ce异常、正La异常、轻微富集的Gd正异常以及La正异常与Y异常的正相关性等典型稀土元素特征均反映了白云石化流体具有典型的海水来源特征;而基质白云岩与白云质灰岩之间的∑REE+Y,∑LREE和∑HREE含量差异表明,在白云石化过程中稀土元素发生了一定程度的流失,且HREE较之于LREE更易于发生流失,因此白云石化过程中成岩流体对HREE的移出量大于LREE的移出量是塔北东部下奥陶统白云岩具有相对富集的LREE及相对较低的Y/Ho比值的主要原因。结合岩石学、沉积学、微量元素以及稳定同位素特征的综合分析认为,塔北东部地区下奥陶统蓬莱坝组基质白云岩是海水白云石化作用的结果。个别白云岩样品的Eu正异常以及同层位构造裂隙方解石的δ^(18)O、^(87)Sr/^(86)Sr以及流体包裹体均表明下奥陶统蓬莱坝组受到后期热液流体的影响,但其对研究样品基质白云岩的影响程度比较弱。 | 韩银学 李忠 韩登林 彭守涛 刘嘉庆 | 2009 | 岩石学报2009，25，10： | 43 |
| 4 | 胃癌中幽门螺杆菌L型感染与MIF、MMP9、VEGF表达的关系显示文摘目的探讨胃癌组织中幽门螺杆菌L型(Hp-L)感染与巨噬细胞移动抑制因子(MIF)、基质金属蛋白酶-9(MMP-9)和血管内皮生长因子(VEGF)表达之间的相互关系及临床意义。方法应用免疫组织化学染色法及革兰染色检测80例胃癌组织及50例癌旁正常组织中Hp-L感染情况,同时检测上述组织中MIF、MMP9、VEGF蛋白的表达;运用RT-PCR及Western blotting法检测30例新鲜胃癌组织及相应切缘组织中MIFmRNA及MIF、MMP9、VEGF蛋白的表达。结果 80例胃癌组织中经免疫组化和革兰染色同时阳性病例有57例,与对照组相比具有显著性差异(71.25%vs 14%,P<0.05);胃癌组织中Hp-L阳性组中MIF、MMP9、VEGF蛋白表达阳性率高于Hp-L阴性组(P<0.05),且Hp-L感染与MIF、MMP9和VEGF表达均呈正相关关系(r=0.598,r=0.292,r=0.341,P<0.05)。30例胃癌新鲜组织中MIF-mRNA表达(1.583±0.177)高于对照组(1.407±0.078),两者差异具有显著性(t=3.729,P=0.001);Western blotting法检测MIF、MMP9、VEGF蛋白在胃癌组织中的表达显著高于癌旁正常组织;胃癌组织中MIF、MMP9均与肿瘤浸润深度及淋巴结转移有关,VEGF蛋白表达与肿瘤浸润深度有关(P<0.05)。结论 Hp-L型感染是促进胃癌的侵袭与转移的重要因素之一,其机制与上调胃癌组织中MIF、MMP9、VEGF表达有关。 | 欧玉荣 康敏 周蕾 承泽农 唐素兰 于东红 | 2014 | 南方医科大学学报2014，34，2： | 45 |
| 5 | Glycyrrhizic acid inhibits apoptosis and fibrosis in carbontetrachloride-induced rat liver injury显示文摘AIM:To investigate anti-apoptotic effects of glycyrrhizic acid(GA) against fibrosis in carbon tetrachloride(CCl4)-induced liver injury and its contributing factors.METHODS:Liver fibrosis was induced by administration of CCl4 for 8 wk.Pathological changes in the liver of rats were examined by hematoxylin-eosin staining.Collagen fibers were detected by Sirius red staining.Hepatocyte apoptosis was determined by TUNEL assay and the expression levels of cleaved caspase-3,Bax,α-SMA,connective tissue growth factor(CTGF),matrix metalloproteinase(MMP) 2 and MMP9 proteins were evaluated by western blot analysis,and α-SMA m RNA,collagen type Ⅰ and Ⅲ m RNA were estimated by real-time PCR.RESULTS:Treatment with GA significantly improved the pathological changes in the liver and markedly decreased the positive area of Sirius red compared with rats in the CCl4-treated group.TUNEL assay showed that GA significantly reduced the number of TUNEL-positive cells compared with the CCl4-treated group.The expression levels of cleaved caspase-3,Bax,α-SMA,CTGF,MMP2 and MMP9 proteins,and α-SMA m RNA,collagen type Ⅰ and Ⅲ m RNA were also significantly reduced by GA compared with the CCl4-treated group(P < 0.05).CONCLUSION:GA treatment can ameliorate CCl4-induced liver fibrosis by inhibiting hepatocyte apoptosis and hepatic stellate cell activation. | Bo Liang Xiao-Ling Guo Jing Jin Yong-Chun Ma Zheng-Quan Feng | 2015 | World Journal of Gastroenterology2015，21，17： | 44 |
| 6 | The Constrained Solutions of Two Matrix Equations | An Ping LIAO Zhong Zhi BAI Department of Mathematics. Hunan University. Changshu, 410082. P. R. China Department of Mathematics and Information Science, Changsha University, Changsha 410003. P. R. China Academy of Mathematics and System. Sciences. Chinese Academy of Sciences. Beijing 100080. P. R. China State Key Laboratory of Scientific/Engineering Computing. Chinese Academy of Sciences. Institute of Computational Mathematics and Scientific/Engineering Computing. Academy of Mathematics and System Sciences. Chinese Academy of Sciences. P. O. Box 2719. Beijing 100080. P. R. China | 2002 | Acta Mathematica Sinica,English Series2002，18，4： | 40 |
| 7 | A Practical Approach to Modifying Pairwise Comparison Matrices and Two Criteria of Modificatory Effectiveness | MA Weiye Bureau of Science & Technology Policy, Academia Sinica, Beijing 100080, PRCXU Jiangyue, WEI Yixiang Beijing University of Aeronautics & Astronautics, Beijing 10080, PRC | 1993 | Systems Science and Systems Engineering1993，3，4： | 35 |
| 8 | Matrix metalloproteinase-2 and tissue inhibitor of metalloproteinase-1 expression in fibrotic rat liver显示文摘INTRODUCTIONLiver fibrosis is an excessive deposition ofextracellular matrix(ECM)resulted from bothincreased synthesis and decreased degradation.Matrix metalloproteinases(MMPs)represent agroup of neutral proteinases with variable | Liu HL Li XH Wang DY Yang SP | 2000 | World Journal of Gastroenterology2000，6，6： | 31 |
| 9 | Effects of glycyrrhetinic acid on collagen metabolism of hepatic stellate cells at different stages of liver fibrosis in rats显示文摘INTRODUCTIONLiver fibrosis is a dynamic course leading tocirrhosis from a various chronic liver diseases. Thepathological basis of fibrosis is the disturbance ofproduction and degradation of the extracellularmatrix (ECM), which causes accumulation of ECMin the liver[1,2]. | Ji Yao Wang Qi Sheng Zhang Ji Sheng Guo Mei Yu Hu Department of Gastroenterology, Zhongshan Hospital, Medical Center, Fu Dan University Shanghai Medical University), Shanghai 200032, China | 2001 | World Journal of Gastroenterology2001，7，1： | 29 |
| 10 | 基质金属蛋白酶组织抑制剂(TIMPs)的基础及临床研究现状显示文摘 | 邵彬 聂青和 | 2005 | 实用肝脏病杂志2005，8，3： | 29 |
| 11 | 丹参及其单体治疗肝纤维化的研究进展显示文摘肝纤维化是所有慢性肝病进展成肝硬化的共同病理基础。而肝星状细胞(hepatic stellate cells,HSCs)的激活、增殖则是肝纤维化发生的中心环节。各种损伤因子导致肝损伤后,HSCs发生活化,细胞表型转变为肌成纤维样细胞,细胞增殖旺盛,生成细胞外基质(extracellular matrix,ECM)的能力明显增强,生成胶原酶抑制物也明显增多,使胶原酶活性下降。这些变化使肝脏ECM生成增加而降解减少,最终导致肝脏胶原沉积与纤维化。 | 孙瑞芳 刘立新 | 2009 | 中国药物与临床2009，9，2： | 30 |
| 12 | The regulatory role of AT 1 receptor on activated HSCs in hepat,c fibrogenesis,effects of RAS inhibitors on hepatic fibrosis induced by CCl_4显示文摘AIM To assess the effect of ACE inhibitor andAng Ⅱ type Ⅰ(AT1)receptor antagonist inpreventing hepatic fibrosis caused by CCl4administration in rats;to investigate whether ornot there are expression of AT 1 receptors onhepatic stellate cells;and to observe the effectof Ang Ⅱ on proliferation and ECM synthesis ofcultured HSCs.METHODS Studies were conducted in maleSprague-Dawley rats.Except for thehepatofibrotic model group and the controlgroup,in three treated groups,either enalapril(5 mg/kg),or Iosartan(10 mg/kg),or enalapril+Iosartan were given to the fibrotic rats bydaily gavage,and saline vehicle was given tomodel and normal control rats.After 6 weeks,liver fibrosis was assessed directly by hepaticmorphometric analysis,which has beenconsidered the gold standard for thequantification of fibrosis.The expressions of AT1 receptors and(α-mooth muscle actin,α-SMA)in liver tissue or isolated hepatic stellate cells(HSCs)were detected by immunohistochemicaltechniques.The effect of Ang Ⅱ on HSCproliferation was determined by MTT method.Effect of Ang Ⅱ on collagen synthesis of HSCswas determined by 3H-proline incorporation.RESULTS Contrasted to the fibrosis in rats ofthe model group,groups of rats treated with either enalapril or Iosartan,or a combination oftwo drugs showed a limited expansion of theinterstitium(4.23±3.70 vs 11.22±4.79,P<0.05),but no difference was observedamong three treated groups(5.38±3.43,4.96±2.96,4.23±2.70,P>0.05).Expression of AT 1receptors was found in fibrotic interstitium offibrotic rats,whereas in normal control rats theywere limited to vasculature only to a very slightdegree.AT 1 receptors were also expressed onactivated HSCs in the culture.At concentrationsfrom 10-9to 10-5mol/L,Ang Ⅱ stimulated HSCproliferation in culture in a dose-dependentmanner.Increasing Ang Ⅱ concentrationsproduced corresponding increases in 3H-prolineincorporation.Differences among groups were significant.CONCLUSION Angiotensin-converting enzyme inhibitors and AT I blocker may slow the progression of hepatic fibrosis; activated HSCs express AT 1 receptors, and Ang Ⅱ can stimulate the proliferation and collagen synthesis of HSCs in a dose-dependent manner; and activation of RAS may be related to hepatic fibrogenesis induced by CCI4. | Hong Shan Wei Han Ming Lu Ding Guo Li Yu Tao Zhan Zhi Rong Wang Xin Huang Ji Lin Cheng Qin Fang Xu Department of Gastroenterology,Xinhua Hospital,Shanghai Second Medical University,Shanghai 200092,China | 2000 | World Journal of Gastroenterology2000，6，6： | 27 |
| 13 | Review of metal matrix composites with high thermal conductivity for thermal management applications | Xuan-hui QU Lin ZHANG Mao WU Shu-bin REN | 2011 | Progress in Natural Science:Materials International2011，21，3： | 22 |
| 14 | TGF/Smad信号通路与肝纤维化的研究进展显示文摘肝纤维化是由于细胞外基质(extracellular matrix,ECM)合成和降解失衡,ECM过度沉积而发生的,是许多慢性肝脏疾病发展为肝硬化的主要病理过程。 | 黄越龙 周春光 陈燕 张谊 张启瑜 | 2011 | 实用医学杂志2011，27，10： | 21 |
| 15 | 肾纤维化的分子病理机制探讨显示文摘 | 王颖航 潘志 南红梅 王耀献 南征 | 2006 | 中国中西医结合肾病杂志2006，7，1： | 20 |
| 16 | Multi-view Clustering: A Survey显示文摘In the big data era, the data are generated from different sources or observed from different views. These data are referred to as multi-view data. Unleashing the power of knowledge in multi-view data is very important in big data mining and analysis. This calls for advanced techniques that consider the diversity of different views,while fusing these data. Multi-view Clustering(MvC) has attracted increasing attention in recent years by aiming to exploit complementary and consensus information across multiple views. This paper summarizes a large number of multi-view clustering algorithms, provides a taxonomy according to the mechanisms and principles involved, and classifies these algorithms into five categories, namely, co-training style algorithms, multi-kernel learning, multiview graph clustering, multi-view subspace clustering, and multi-task multi-view clustering. Therein, multi-view graph clustering is further categorized as graph-based, network-based, and spectral-based methods. Multi-view subspace clustering is further divided into subspace learning-based, and non-negative matrix factorization-based methods. This paper does not only introduce the mechanisms for each category of methods, but also gives a few examples for how these techniques are used. In addition, it lists some publically available multi-view datasets.Overall, this paper serves as an introductory text and survey for multi-view clustering. | Yan Yang Hao Wang | 2018 | Big Data Mining and Analytics2018，1，2： | 20 |
| 17 | 船舶推进轴系扭转振动应用软件开发研究显示文摘建立了船舶推进轴系扭转振动计算模型 ,利用 Matrix VB直接进行解析法计算 ,并开发了相应的计算软件。软件测试结果表明 ,计算方法正确 ,方法稳定可靠 ,算法设计优化 ,所开发的应用软件具有界面友好、功能完善、计算速度快、系统资源消耗少、操作简便易行、通用性好等特点 ,能满足船舶轴系扭转振动计算的要求。对船舶轴系设计计算、校核计算、事故分析 ,提高船舶轴系设计的效率以及船舶运行的安全性有实际指导意义和广阔的应用前景。 | 周瑞平 杨建国 张升平 | 2003 | 武汉理工大学学报2003，25，3： | 19 |
| 18 | Study on the expression of matrix metalloproteinase-2 mRNA in human gastric cancer显示文摘 | Ji F Wang WL Yang ZL Li YM Huang HD Chen WD | 1999 | World Journal of Gastroenterology1999，5，5： | 19 |
| 19 | 透明质酸与骨关节炎的研究进展显示文摘 | 杨小立 刘淼 | 2006 | 中国疼痛医学杂志2006，12，1： | 19 |
| 20 | 多时滞广域测量电力系统稳定分析与协调控制器设计显示文摘根据电力系统存在时滞的差异性,将控制器信号分为本地无时滞控制输入信号和广域异地多时滞控制输入信号两部分,建立了多时滞电力系统的模型。运用Lyapunov-Krasovskii泛函理论推导出了含有时滞分量的线性多时滞电力系统稳定判据,将控制问题转换为线性矩阵不等式的可行性问题,并采用模型降阶方法对原系统进行降阶,实现了含有多个时滞的广域输出反馈控制,并计算出了能够使闭环电力系统稳定的最大时滞时间。讨论了系统稳定判据中时滞分量与广域控制器参数之间的关系,以及对区域间振荡的控制效果。最后以两区域四机系统为例,用时域仿真的结果说明了本文所提出的多时滞控制方法的有效性。 | 古丽扎提.海拉提 王杰 | 2014 | 电工技术学报2014，29，2： | 19 |
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