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| 1 | Source mechanism of strong aftershocks (M_s≥5.6) of the 2008/05/12 Wenchuan earthquake and the implication for seismotectonics显示文摘Dozens of >M5, hundreds of >M4, and much more >M3 aftershocks occurred after the 2008/05/12 Wenchuan earthquake, which were well recorded by permanent and portable seismic stations. After relocated with P arrival, the >M3 aftershocks show two trends of distribution, with most of the aftershocks located along the north-east strike consistent with Longmenshan fault system, yet there is a north-west trend around the epicenter. It seems that substantially more aftershocks occur in regions with crystalline bedrocks. Then we collected waveform data from National Digital Seismograph Network and regional seismograph network of China, and employed 'Cut and Paste' method to obtain focal mechanisms and depths of the big aftershocks (M≥5.6). While most of those aftershocks show thrust mechanism, there are some strike slip earthquakes in the northern-most end of the rupture. Focal mechanisms show that the events located on the southern part of central Beichuan-Yingxiu Fault (BY) are mainly thrust earthquakes, which is consistent with initial mechanism of the main shock rupture. In the north part the aftershocks along the BY are also dominated by thrust slip, which is quite different from the right slip rupture of the main shock. Around Qingchuan-Pingwu Fault, the focal mechanisms are dominated by right-slip rupture with large depths (~18 km). So we suspected that in the north part the main shock might rupture on two faults: Beichuan Fault and Qingchuan-Pingwu Fault. The complex pattern of aftershock mechanisms argues for presence of a complicated fault system in the Longmenshan area. | ZHENG Yong1,2,MA HongSheng3,Lü Jian4,NI SiDao5,LI YingChun6 & WEI ShengJi2 1 Institute of Geodesy and Geophysics,Chinese Academy of Sciences,Wuhan 430077,China 2 Institute of Geophysics,Chinese Earthquake Administration,Beijing 100086,China 3 Institute of Earthquake Science,Chinese Earthquake Administration,Beijing 100086,China 4 Earthquake Administration of Jiangxi Province,Nanchang 330039,China 5 School of Earth and Space Science,University of Science and Technology of China,Hefei 230026,China 6 Earthquake Administration of Jiangsu Province,Nanjing 210014,China | 2009 | Science China Earth Sciences2009，52，6： | 100 |
| 2 | 基于分水岭变换和图论的图像分割方法显示文摘提出了一种融合分水岭变换和图论的图像分割方法。利用图像的局部灰度信息进行分水岭变换后,将图像分割成多个小区域,再结合各小区域的灰度和空间信息从全局角度用Normalized Cut方法在区域之间进行分割,产生最终的分割结果。实验结果表明,该方法可以消除分水岭变换后所产生的过分割现象,是一种有效的图像自动分割方法。 | 冯林 孙焘 吴振宇 管慧娟 | 2008 | 仪器仪表学报2008，29，3： | 28 |
| 3 | Exogenous ethylene influences flower opening of cut roses (Rosa hybrida) by regulating the genes encoding ethylene biosynthesis enzymes显示文摘The purpose of this paper is to investigate the differential responses of flower opening to ethylene in two cut rose cultivars, ‘Samantha’, whose opening process is promoted, and ‘Kardinal’, whose opening process is inhibited by ethylene. Ethylene production and 1- aminocyclopropane-1-carboxylate (ACC) synthase and oxidase activities were determined first. After ethylene treatment, ethylene production, ACC synthase (ACS) and ACC oxidase (ACO) activities in petals increased and peaked at the earlier stage (stage 3) in ‘Samantha’, and they were much more dramatically enhanced and peaked at the later stage (stage 4) in ‘Kardinal’ than control during vasing. cDNA fragments of three Rh-ACSs and one Rh- ACO genes were cloned and designated as Rh-ACS1, Rh-ACS2, Rh-ACS3 and Rh-ACO1 respectively. Northern blotting analysis revealed that, among three genes of ACS, ethylene-in- duced expression patterns of Rh-ACS3 gene corresponded to ACS activity and ethylene production in both cultivars. A more dramatic accumulation of Rh-ACS3 mRNA was induced by ethylene in ‘Kardinal’ than that of ‘Samantha’. As an ethylene action inhibitor, STS at concentration of 0.2 mmol/L generally inhib-ited the expression of Rh-ACSs and Rh-ACO in both cultivars, although it induced the expression of Rh-ACS3 transiently in ‘Kardinal’. Our results suggests that ‘Kardinal’ is more sensitive to ethylene than ‘Samantha’; and the changes of Rh-ACS3 expression caused by ethylene might be related to the acceleration of flower opening in ‘Samantha’ and the inhibition in ‘Kardinal’. Additional results indicated that three Rh-ACSs genes were differentially associated with flower opening and senescence as well as wounding. | MA Nan1, CAI Lei1, LU Wangjin2, TAN Hui1 & GAO Junping1 1. Department of Ornamental Horticulture and Landscape Architecture, China Agricultural University, Beijing 100094, China 2. Department of Horticulture, South China Agricultural University, Guangzhou 510642,China | 2005 | Science China(Life Sciences)2005，48，5： | 20 |
| 4 | 复杂背景下目标三维重构的图像预处理方法显示文摘针对目标三维重构图像处理算法要求背景单一、对实验环境依赖性较大的弊端,提出了一种复杂背景下目标三维重构的图像预处理算法。通过对所采集的图像进行高斯滤波、伽马变换以及直方图均衡化处理,去除图像噪点,对复杂背景图像进行抑制,最大程度地强化目标细节信息。融合Grab cut算法与Deeplab算法,解决Grab cut耗时而Deeplab边缘模糊的问题,有效地实现了目标与复杂背景的分离。搭建了针对小汽车模型的实验平台,共获取16组目标图像,验证了该算法的可行性。以2组目标为例,对比了所提算法与传统三维重构图像预处理算法的效果:所提算法的分割准确性为0.9986,灵敏度为0.9889,特异性为0.9991,均高于传统方法;与传统算法点云噪点率为22.7%相比,所提算法的点云噪点率降低为1.15%;所提算法的平均重构耗时为2.245s,是传统算法耗时的60.6%。由此证明了所提图像预处理方法在复杂背景下的三维重构中具有更好的效果。 | 方雅媚 王红军 黄矿裕 周伟亮 刘磊 邹湘军 | 2019 | 激光与光电子学进展2019，56，13： | 17 |
| 5 | 基于分水岭算法和图论的图像分割显示文摘提出一种新的基于分水岭算法和图论的图像分割方法FWTN(First Watershed Then Normalized cut),以克服传统的分水岭算法造成的图像过度分割。FWTN方法在分水岭算法之后,用Normalized Cut方法在区域之间进行分割,产生最终所分割的图像。FWTN成功地解决了过分割问题,同时还对Normalized Cut方法中的NP-hard问题有所改进。实验结果表明该算法是一种切实可行的图像分割方法。 | 杨卫莉 郭雷 | 2007 | 计算机工程与应用2007，43，7： | 15 |
| 6 | 一种融合区域生长与图论的图像分割方法显示文摘该文提出一种融合区域生长与图论的图像分割方法,一般的基于区域的分割方法在区域生长完成之后需要进行区域的合并,以消除过分割现象。该文的方法在区域生长完成之后,用NormalizedCut方法在区域之间进行分割,产生最终所分割的图像。在方法上区域生长方法考虑的是图像的局部信息,NormalizedCut方法考虑的是图像的全局信息,该文的方法融合了两者的优点。该文的算法主要以灰度图像为研究对象,实验结果表明可以取得很好的分割效果。 | 牟涛 陈文斌 沈一帆 | 2005 | 计算机工程与应用2005，41，19： | 14 |
| 7 | Oxide and Sulfide Dispersive Precipitation in Ultra-low Carbon Steels显示文摘 | Delu Liu, Xangdong Huo, Yuanli Wang, Jie Fu, Yongin Kang, Nanjing Chen 1 ) Materials Science and Engineering School, University of Science and Technology Beijing, Bejing 100083, China 2) Metallurgy School, University of Science and Technology Beijing, Bei | 2001 | Journal of University of Science and Technology Beijing2001，8，4： | 10 |
| 8 | 基于Graph Cut的快速纹理合成算法显示文摘提出一种带边界匹配的基于Graph Cut的快速纹理合成算法.通过将纹理样本以不同的位移贴到输出图中完成合成,重叠区域的像素取值由Graph Cut确定.引入边界图辅助位移搜索,以增强合成结果的边界连续性;在预处理过程中计算2个相同样本在所有相对位移下的匹配误差,选取一部分误差最小的位移组成'优选位移'集合,合成过程中的块间相对位移仅从此集合中选取,大大地提高了合成速度.实验结果表明,该算法合成质量高、适用范围广、合成速度快. | 邹昆 韩国强 李闻 张潇元 | 2008 | 计算机辅助设计与图形学学报2008，20，5： | 9 |
| 9 | Generalized equation for calculating rock cutting efficiency by pulsed water jets显示文摘One of the promising methods for rock cutting technology is the use of high-speed water jets.In order to improve the cutting capacity of water jets without increasing the hydraulic power of equipment,pulsed water jets are basically used to increase the rock cutting efficiency.However,there are no mature recommendations for selection of rational parameters,and the relationship between indicators of rock cutting efficiency and parameters of pulsed water jet is still not established.In this context,we aimed at developing a generalized equation for calculating rock cutting efficiency,in which all the major parameters in consideration of rock cutting process are included.Then,a calibration of the rational parameters of rock cutting by pulsed water jets was conducted.The results are likely helpful for increasing productivity and reducing energy consumption. | Andrey Polyakov Aleksandr Zhabin Eugene Averin Aleksey Polyakov | 2019 | Journal of Rock Mechanics and Geotechnical Engineering2019，11，4： | 6 |
| 10 | Graphene oxide as an antimicrobial agent can extenCthe vase life of cut flowers显示文摘"PlantNanOmics" is an emerging topic in agricultural research that explores thepotential effect of application of nanomaterials on plant growth. Graphene oxide(GO) has excellent properties due to its basal carbon plane and oxygen-containingfunctional groups. In the present work, the antimicrobial activity of GO wasexploited to extend the vase life and improve the quality of cut roses (cv. Carola).The results revealed that the cut roses cultivated in low doses of GO (0.1 mg/L)had longer vase life, larger diameter, and better water relations. Microbialcontaminations at the basal stem end is the most common reason for stemblockage that causes water stress and early wilting of cut flowers. GO wasfound to act as a germicide, effectively inhibiting the microbial growth atthe cut stem end and improving water uptake and water balance of cut roses.Therefore, GO can serve as a promising preservative to increase the ornamentalvalue of cut flowers. | Yijia He Lichao Qian Xu Liu Ruirui Hu Meirong Huang Yule Liu Guoqiang Chen Dusan Losic Hongwei Zhu | 2018 | Nano Research2018，11，11： | 6 |
| 11 | 乙型肝炎病毒表面抗原定性试验中临界值再确定的必要性与方法显示文摘目的探讨乙型肝炎病毒表面抗原(HBsAg)定性试验中S/CO的分布规律、最低检测限、临界(cutoff)值再确定的必要性及其可行方法。方法以SPSS软件分析HBsAg的S/CO分布规律,用电化学发光仪E170鉴定待检标本的HBsAg,评价酶联免疫吸附试验试剂盒最低检测限,以常规条件下的变异(ROC)曲线对HBsAg的cut off值进行再确定。结果HBsAg阴性标本S/CO呈正偏态分布,阳性标本S/CO呈负偏态分布;科华HBsAg试剂盒的最低检测限约为8.0 COI;一步法时,由ROC曲线计算的cut off值为0.103,灵敏度与特异度分别为97.1%、100%,曲线下面积(AUC)为0.993(P<0.01);两步法计算的cut off值为0.218,灵敏度与特异度分别为97.8%、100%,AUC为0.996(P<0.01);两步法优于一步法,但两方法之间差异无统计学意义(P>0.05)。结论重新认识和确定HBsAg定性试验的S/CO分布规律、最低检测限、cut off值有利于提高检验质量。 | 汪宝贯 顾桂兰 肖鹿骋 倪萍 丁婧 | 2008 | 检验医学与临床2008，5，24： | 5 |
| 12 | 不同形态年龄相关性白内障对客观视觉质量的影响显示文摘目的探讨不同形态早期年龄相关性白内障对客观视觉质量的影响。方法临床病例对照研究。选取2013年3月到2013年8月就诊于中国医科大学眼科医院的最佳矫正视力(BCVA)LogMAR≤0.3的年龄相关性白内障患者113例(121只眼),分为3组,其中皮质性白内障组41例(44只眼)、核性白内障组36例(39只眼)、后囊膜下白内障组36例(38只眼)。使用综合验光仪测量患者的BCVA,OQAS视觉质量分析仪测量患者的散射光(OSI),调制传递函数(MTF cut off)和斯特列尔比(SR)。结果三组的BCVA(LogMAR)分别为:皮质性白内障组(0.23±0.10)logMAR,核性白内障组(0.23±0.08)logMAR,后囊膜下白内障组(0.25±0.10)logMAR,三组BCVA的差异无统计学意义(F=0.68,P=0.51)。三组的年龄、眼内散射光的自然对数LN(OSI)、MTF(cut off),斯特列尔比(SR):皮质性白内障组分别为64.57±6.25、1.35±0.63、11.85±4.24、0.09±0.02,核性白内障组:分别为69.90±5.01、1.01±0.43、14.82±5.50、0.10±0.03,后囊膜下白内障组分别为:61.03±9.52、1.85±0.58、8.71±6.36、0.08±0.03,ANOVA检验各种形态白内障组在年龄、LN(OSI)、MTF(cut off),SR之间的差异均有统计学意义(F=15.17、22.49、12.38、11.84,P〈0.05);经Bonferroni检验,年龄为皮质性自内障组和后囊膜下白内障小于核性白内障组;OSI值为后囊膜下白内障、皮质性白内障及核性向内障依次减小;MTF cut off为后囊膜下白内障、皮质性向内障及核性白内障为依次增大;核性白内障的SR值比皮质性白内障、后囊膜下白内障大;皮质性白内障、核性白内障及后囊下白内障的BCVA与OSI均呈正相关(r=0.41,P〈0.01;r=0.33,P=0.04;r=0.32,P=0.05)。皮质性、核性及后囊下白内障的BCVA与MTF cut off均无统计学意义(r=-0.26,P=0.08;r=-0.09,P=0.58;r=-0.18,P=0.29)。皮质性、核性及后囊下自内障的OSI与MTF cut off相关性均差异有统计学意义(r=-0.88,P〈0.01;r=-0.70,P〈0.01;r=-0.76,P〈0.01)。结论散射光、MTF(cut off)、斯特列尔比町以客观地反映白内障形态对患者视觉质量的影响,后囊膜下白内障对视觉质量影响最大. | 丁晓霞 陆博 赵江月 张劲松 | 2015 | 中国实用眼科杂志2015，33，8： | 5 |
| 13 | Prevention and management of pleural effusion following hepatectomy in primary liver cancer显示文摘Postoperative pleural effusion occurs frequently after hepatectomy. The risk factors, prevention and management of postoperative pleural effusion in patients with primary liver cancer (PLC) who have undergone hepatectomy and the value of the argon beam coagulator (ABC) for the prevention of pleural effusion are studied. METHODS:A total of 523 patients with PLC at our institution who had had right hepatectomy from July 2000 to June 2004 were studied retrospectively. Comparative analysis was made to identify the factors contributing to postoperative pleural effusion and the efficacy of various managements. RESULTS:Of the 523 patients whose livers were dissociated using argon beam cutting and/or coagulation, 20(3.8%) developed pleural effusions;whereas in the other 467 patients underwent hepatectomy with suture ligation of the diaphragmatic secondary wound surface during the same period, 49(10.5%) had pleural effusion (P<0.01). The factors contributing to postoperative pleural effusion included subphrenic collection, postoperative hepatic insufficiency with ascites, duration of hepatic occlusion and underlying cirrhosis. CONCLUSIONS: Dissociation of the liver by argon beam cutting and/or coagulation can save suture ligation of the diaphragmatic secondary wound surface and may also prevent postoperative pleural effusion. Pleural drainage using an indwelling central-venous-catheter (CVC) in the pleural cavity is safe and efficacious. | Jian-Jun Yan, Xiang-Hua Zhang, Kai-Jian Chu, Liang Huang, Fei-Guo Zhou and Yi-Qun Yan Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200438, China | 2005 | Hepatobiliary & Pancreatic Diseases International2005，4，3： | 5 |
| 14 | 关于推荐使用“切割分子量”一词的建议显示文摘 | 祝振鑫 | 2006 | 膜科学与技术2006，26，2： | 5 |
| 15 | 小型文物摄影测量三维建模主体对象识别显示文摘通过拍照进行三维建模的摄影测量技术是文物数字化的重要手段,然而,在摄影测量文物三维重建过程中,文物所在的场景背景也同时参与计算和建模,需要设法删除,以获得文物单体模型。针对上述问题,本文提出一种小型文物三维模型主体对象识别方法,能够自动删除文物摄影测量三维模型的背景数据。该方法分别利用深度学习网络Mask R-CNN和改进为自动获得初值的One Cut进行文物图像前景内容识别,再融合两种方法的识别结果进行文物图像主体对象分割,最后以二维图像分割结果为依据,逐三角形识别三维模型主体对象,并运用多视角约束法优化识别精度。实验表明,本文方法能够获得小型文物单体化三维模型,无需人工干预且精度较高。 | 牛文渊 黄先锋 金洁 毛竹 宫一平 徐建民 赵峻弘 | 2021 | 遥感学报2021，25，12： | 5 |
| 16 | 基于SLIC超像素的Grab Cut算法改进显示文摘为了提高图像分割算法的效率,结合SLIC超像素算法和Grab Cut算法,提出了基于改进SLIC超像素的Grab Cut算法.改进后的SLIC超像素算法主要采用均匀随机的方式提取SLIC超像素特征,用以减少冗余的聚类中心,提高算法运行效率,并改进Grab Cut算法适应改进后的SLIC算法,完成图像分割.实验证明:基于改进SLIC超像素的Grab Cut算法简化了用户侧的操作,在一定程度上解决了对象主体的模糊、透明、重叠等问题,并大幅提升了运行效率. | 董茜 颜凯 孙婷婷 张思远 | 2016 | 华中科技大学学报(自然科学版)2016，44，S1： | 5 |
| 17 | Methods applied in Australian industry to evaluate coal mine slope stability显示文摘Strata failure is a principal hazard in open cut coal mining as it has the potential to cause multiple fatalities.Prior to the excavation of any slope,a geotechnical assessment should review the likely slope performance,including the risk of slope failure.Controls to manage this risk to an acceptable level should accompany the geotechnical analysis.A survey of 43 practising geotechnical engineers indicated that kinematic and 2D limit equilibrium analyses were the methods most commonly applied to analyse excavated slope stability.While these methods are well established and widely applied in the broad rock engineering disciplines(e.g.civil,hard rock),a recent review of over 60 slope failures suggests these methods have limited suitability for modelling the complex failure mechanisms observed in excavated coal mine slopes.Kinematic techniques do not adequately capture the rock mass component of excavated slope failure and do not provide a geospatial location of potential failure,while 2D limit equilibrium techniques do not adequately capture the 3D mechanisms of excavated slope failures.Methods which do consider the 3D mechanisms of slope failure are summarized for industry consideration and application. | Alison McQuillan Ismet Canbulat Joung Oh | 2020 | International Journal of Mining Science and Technology2020，30，2： | 4 |
| 18 | 一种基于Multiway cut的多对象图像分割显示文摘多对象分割是图像处理中的一个难题,基于Multiway cut的图像分割是一种人工交互式多对象分割方法,能够实现图像的粗分割和精确分割。使用分水岭分割图像,把图像分割为属性相似的小区域;根据交互建立节点层次图,构建带权无向网络;不同层次的节点参与不同的运算,采用Multiway cut迭代分割;交互和分割可以多次执行,直至满足用户的要求。实验结果表明,该方法人工参与方便,准确度得到提高,速度满足现场操作的要求。 | 孙统风 丁世飞 任子晖 | 2010 | 计算机应用研究2010，27，8： | 4 |
| 19 | Ncut在图像分割中的应用显示文摘Normalized cut(Ncut)是一种基于图论的方法,它融合了图像的不同特征实现图像的分割。介绍了Normalized cut的定义和算法的实现过程,总结了近年来该算法在求解特征方程方面的改进,着重讨论了Ncut算法在图像分割相关领域的应用,包括了医学图像分割、矢量场分割、视频分割等等。最后对该算法做了进一步总结,并展望了该算法的发展方向。 | 陈彦至 黄永锋 | 2009 | 计算机技术与发展2009，19，1： | 4 |
| 20 | 基于Normalized Cut的基因表达数据聚类显示文摘利用基因表达数据进行聚类分析可提高肿瘤诊断的正确率,对生物医学研究具有重要意义.该文将Normalized Cut应用于基因表达数据的聚类中,将样本映射为高维空间的点,利用亲近矩阵和度矩阵构造正规Laplacian矩阵,经SVD分解得到反映原始样本类别信息的指示向量,利用指示向量各分量的符号差异实现基因表达数据的聚类.通过对白血病和结肠癌数据集的实验,证明了该文方法的有效性. | 王俊生 王年 郭秀丽 唐俊 | 2012 | 安徽大学学报(自然科学版)2012，36，4： | 4 |
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