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2009 3rd International Conference on Bioinformatics and Biomedical Engineering最新文献

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Life Loss Evaluation of Dam Failure Based on VOF Method 基于VOF法的溃坝生命损失评估
Pub Date : 2009-07-14 DOI: 10.1109/ICBBE.2009.5163014
Jia Luo, Ling Huang, Yuefeng Sun, Xiao-Ling Wang, Juan An, Tao Li
The life loss model of dam failure based on standard k-epsiv model coupled with the volume of fluid (VOF) method is studied in this paper. The improved Graham method is adopted to estimate the life loss of dam failure. The Gongming reservoir in Shenzhen city is taken as a case study. The calculated life loss is between 7970 to 10504 in the situation of no warning and very fuzzy public comprehension degree which is extremely serious; between 2031 to 3395 in the situation of no warning and very clear public comprehension degree; between 1335 to 2217 in the situation of full warning and very fuzzy public comprehension degree; and between 5 to 13 in the situation of full warning and very clear public comprehension degree. The results indicates that warning and public comprehension degree have a great impact on life loss. Research results can offer decision basis for accident warning and disaster prevention and reduction.
本文研究了基于标准k-epsiv模型和流体体积法的溃坝寿命损失模型。采用改进的Graham方法估计溃坝的寿命损失。以深圳市公明水库为例。在没有预警和公众理解程度非常模糊的情况下,计算的生命损失在7970 ~ 10504之间,极为严重;2031年至3395年在无预警且公众理解程度非常明确的情况下;1335 ~ 2217为充分预警,公众理解程度非常模糊的情况;并在5至13之间的情况下,充分警告和非常明确的公众理解程度。结果表明,预警和公众理解程度对生命损失有很大影响。研究成果可为事故预警和防灾减灾提供决策依据。
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引用次数: 4
A Space Mapping Deformation Technology for Dental Surface Restoration 牙体表面修复的空间映射变形技术
Pub Date : 2009-06-11 DOI: 10.1109/ICBBE.2009.5162245
Shu-Xian Zheng, Jia Li, Qing-Feng Sun
Restoration of the occlusal teeth surface is an important aspect in dental CAD system. The designed surface shape must fit the existing jaw articulation and keep the anatomy features of the generic teeth. In this paper we presented a new method for teeth surface restoration based on space mapping deformation technology. The main focus on this method is the dental surface global and local mapping deformation using radial basis function (RBF) according to the corresponding feature points of the standard tooth and the preparation. The space mapping deformation method has been successfully applied on some preparation, which can guarantee the surface matching smoothness and keep the main anatomical features of teeth.
咬合牙面修复是牙科CAD系统的一个重要方面。设计的表面形状必须符合现有的颌关节,并保持普通牙齿的解剖特征。本文提出了一种基于空间映射变形技术的牙齿表面修复新方法。该方法的主要重点是利用径向基函数(RBF)根据标准牙体和预备牙体对应的特征点进行牙体表面的全局和局部映射变形。空间映射变形法已成功应用于某些牙体制备,在保证牙体表面匹配平滑的同时,保持了牙体的主要解剖特征。
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引用次数: 2
The Research of the Trend between the Annual Maximum Sea Level and Southern Oscillation Index 年最高海平面与南方涛动指数的变化趋势研究
Pub Date : 2009-06-11 DOI: 10.1109/ICBBE.2009.5163657
Jing Guan, D. Shi, Y. He
El Nino-Southern Oscillation is the strongest sea-weather interaction phenomena, which causes global climate change, and makes significant impact on sea level variation. The linear trend of the annual maximum sea level at Fremantle Port, Western Australia, related with time and Southern Oscillation index during 1897-1989 is analyzed by linear conditional quantile regression model. And the result is compared with that of the classical least square regression. The result shows that, under different quantiles, the linear trend of the annual maximum sea level related with time and Southern Oscillation Index is different, and pantile regression can provide much more information than the classical least square regression. So it is of great significant for prediction and prevention.
厄尔尼诺-南方涛动是最强烈的海气相互作用现象,引起全球气候变化,对海平面变化产生重大影响。利用线性条件分位数回归模型分析了1897-1989年西澳大利亚Fremantle港年最高海平面与时间和南方涛动指数的线性变化趋势。并与经典最小二乘回归的结果进行了比较。结果表明,在不同分位数下,年最高海平面随时间和南方涛动指数的线性变化趋势不同,分位数回归比经典最小二乘回归能提供更多的信息。因此对预测和预防具有重要意义。
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引用次数: 0
Isolating and Denitrification Activity of the Dominant Bacterium in Chaohu Wetland 巢湖湿地优势菌的分离及反硝化活性研究
Pub Date : 2009-06-11 DOI: 10.1109/ICBBE.2009.5162990
Jiazhong Qian, J. Luo, Yong Liu
This passage took soil samples from Chaohu wetland at 1.5 m buried depth. Then isolated the dominant bacteria and studied its denitrification activity under the condition of different carbon sources (methanol, ethanol and acetic acid) and C/N (3:1, 5:1, 10:1). The results suggested: (1) the nitrate removal rate of isolated strain reached 90% (named as D9); (2) under the condition of C:N was 1:1, acetic acid was the best carbon source; (3) taking acetic acid as the sole carbon source, the best C:N was 3:1. These results can provide the base for the restoration of nitrate pollution in groundwater and the prevention of Lake Eutrophication.
本通道取巢湖湿地1.5 m埋深土壤样本。然后分离出优势菌,研究其在不同碳源(甲醇、乙醇和乙酸)和C/N(3:1、5:1、10:1)条件下的反硝化活性。结果表明:(1)分离菌株的硝酸盐去除率达到90%(命名为D9);(2)在C:N为1:1的条件下,乙酸为最佳碳源;(3)以醋酸为唯一碳源时,最佳碳氮比为3:1。研究结果可为修复地下水硝酸盐污染和防止湖泊富营养化提供依据。
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引用次数: 2
Research on Optimal Operation Policy for Water Resource System During Drought 干旱条件下水资源系统最优运行策略研究
Pub Date : 2009-06-11 DOI: 10.1109/ICBBE.2009.5163333
Hongyuan Fang, Song Yan
According to basic connotation of the indexes for expressing reservoir water-supply risk during drought: reliability, resilience and vulnerability of reservoir water supply, and mathematical programming principles, the multi-objective mixed integer programming model was set up, which was able to consider the priority of urban water-supply and agricultural water-supply, and operation rule of reservoir-group system for successive drought periods. The model-solving procedures and lattice work-search method was proposed based on characteristics of the model structure. The concept of technique is clear to understand and convenient to write computer program, therefore, the large-scale and complicated mixed programming model become easy to solve. The application example verifies rationality of the model technique and it has the practical value for multi-reservoir water-supply system operation policy analysis during drought.
根据表达干旱期水库供水风险指标的基本内涵:水库供水的可靠性、恢复力和脆弱性,根据数学规划原则,建立了考虑城市供水和农业供水优先级以及连续干旱期水库群系统运行规律的多目标混合整数规划模型。根据模型结构的特点,提出了模型求解步骤和点阵搜索方法。该技术概念清晰易懂,便于编写计算机程序,从而使大规模复杂的混合编程模型易于求解。应用实例验证了模型技术的合理性,对多水库供水系统干旱工况运行策略分析具有实用价值。
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引用次数: 0
Utilization of High Carbon Fly Ash and Coal Gangue in Blended Cement: A Case Study 高碳粉煤灰与煤矸石在混合水泥中的应用研究
Pub Date : 2009-06-11 DOI: 10.1109/ICBBE.2009.5163741
F. Zhao, Bin Guo, Hong-jie Liu, J. Liu
The purpose of this work is to present an effective alternative to combined use of high carbon fly ash (HCFA) and coal gangue. HCFA, coal gangue, together with some additives and water, were mixed, dried, and clacinated at 700degC~900degC to produce a cement admixture (FGA),which is used to produce environment friendly cementing material by mixing and co- grinding with granulated blast-furnace slag (GBFS) and alkali activator. The optimized formulation of the cementing material for Strength Grade 42.5 (GB12958-1999) was obtained with the aid of orthogonal array technique: FGA-47%, GBFS-47%, activator-6%. The hydration products, studied by SEM and XRD, are mainly ettringite and C-S-H (I).
本工作的目的是提出一种有效的替代高碳粉煤灰(HCFA)和煤矸石的组合使用。将HCFA、煤矸石与一些助剂和水在700℃~900℃下混合、干燥、螯合制成水泥外加剂(FGA),该外加剂与粒状高炉矿渣(GBFS)和碱激发剂混合共磨,用于生产环保型胶凝材料。采用正交阵列法确定了强度等级42.5 (GB12958-1999)胶凝材料的最佳配方:FGA-47%、GBFS-47%、活化剂-6%。通过SEM和XRD分析,水化产物主要为钙矾石和C-S-H (I)。
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引用次数: 2
Occurrence and Removal of Fluoroquinolone Antibiotics in a Sewage Treatment Plant in Shanghai, China 上海某污水处理厂氟喹诺酮类抗生素的发生与去除
Pub Date : 2009-06-11 DOI: 10.1109/ICBBE.2009.5163140
Lu Shi, Xuefei Zhou, Yalei Zhang, G. Gu
In this paper, the occurrence and removal of eight fluoroquinolone antibiotics were investigated at a sewage treatment plant (STP) in Shanghai, China. The most frequently detected fluoroquinolone antibiotics in the present study were norfloxacin, ciprofloxacin and lomefloxacin. The concentrations of these compounds in water samples at the STP ranged from 103 to 1786 ng L -1, 14 to 1406 ng L -1 and 21 to 2246 ng L -1, respectively. The other fluoroquinolone antibiotics were detected only in a few samples from the STP. FQs in aquatic phase could not be eliminated completely from the STP, with the removal efficiencies from 70% to 100%. The concentrations of FQs in water detected in summer were higher than in other seasons, due to the more desorption from sludge to aquatic phase under higher temperature.
本文对上海某污水处理厂8种氟喹诺酮类抗生素的发生及去除情况进行了调查。本研究中检出最多的氟喹诺酮类抗生素为诺氟沙星、环丙沙星和洛美沙星。这些化合物在STP水样中的浓度分别为103 ~ 1786 ng L -1、14 ~ 1406 ng L -1和21 ~ 2246 ng L -1。其他氟喹诺酮类抗生素仅在STP的少数样品中检测到。STP不能完全去除水中的FQs,去除率在70% ~ 100%之间。夏季水体中FQs浓度高于其他季节,这是由于温度越高,污泥向水相的解吸越多。
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引用次数: 4
Recent Progress in Challenges of Wireless Biomedical Sensor Network 无线生物医学传感器网络挑战研究进展
Pub Date : 2009-06-11 DOI: 10.1109/ICBBE.2009.5163284
Lili Zhang, Xiaoming Wu
Wireless biomedical sensor network (WBSN) improves monitoring conditions, community medical and health services remarkably. Meanwhile, it poses prominent characteristics and challenges for its particular medical application. This paper highlights the recent researches and achievements in this field and also gives a guide to pivotal challenges of WBSN for researchers and engineers.
无线生物医学传感器网络(WBSN)显著改善了监测条件,改善了社区医疗卫生服务。同时,其特殊的医学应用也带来了突出的特点和挑战。本文重点介绍了该领域的最新研究成果,并对研究人员和工程师面临的关键挑战进行了指导。
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引用次数: 10
3D Virtual Intravascular Endoscopy Visualization of Coronary Artery Plaques 三维虚拟血管内内镜显示冠状动脉斑块
Pub Date : 2009-06-11 DOI: 10.1109/ICBBE.2009.5162142
Zhonghua Sun, T. Chaichana, F. Dimpudus, J. Adipranoto, J. Nugroho
The purpose of the study is to investigate the potential diagnostic value of 3D virtual intravascular endoscopy in the visualization of coronary artery plaques in patients with suspected coronary artery disease. Ten patients suspected of coronary artery disease undergoing 64-slice computed tomography scans were included in the study. Four main coronary artery branches including right coronary artery, left main stem, left anterior descending and left circumflex were assessed using virtual intravascular endoscopy with emphasis on the intraluminal appearance of coronary plaques (calcified and noncalcified plaques). Position of the plaques and degree of vessel stenosis was compared with 2D axial images in each patient. Coronary artery disease with >50% stenosis was found in 6 patients involving 7 left anterior descending and 3 right coronary artery branches. Left anterior descending branch was commonly affected with extensive calcification, while more than half of the right coronary arteries were involved with noncalcified plaques. Our results showed that virtual intravascular endoscopy provides unique information of the coronary plaques by demonstrating the intraluminal configuration of coronary plaques, position of the plaques in relation to the artery branches. Both calcified and noncalcified plaques can be identified on virtual endoscopy images. Further studies are needed to clarify the role of virtual intravascular endoscopy in the quantification of plaque volume, stratification of patients suffering from coronary artery disease and patients management.
本研究旨在探讨三维虚拟血管内内镜对疑似冠状动脉疾病患者冠状动脉斑块可视化的潜在诊断价值。10例疑似冠状动脉疾病的患者接受64层计算机断层扫描。四个主要冠状动脉分支包括右冠状动脉、左主干、左前降支和左旋支,使用虚拟血管内内镜评估,重点是冠状动脉斑块(钙化和非钙化斑块)的腔内外观。将每个患者的斑块位置和血管狭窄程度与二维轴向图像进行比较。6例冠状动脉病变伴bbb50 %狭窄,累及7支左前降支和3支右冠状动脉。左前降支常伴广泛钙化,而超过一半的右冠状动脉伴非钙化斑块。我们的研究结果表明,虚拟血管内内窥镜通过显示冠状动脉斑块的腔内结构以及斑块相对于动脉分支的位置,提供了冠状动脉斑块的独特信息。钙化和非钙化斑块均可在虚拟内窥镜图像上识别。虚拟血管内内镜在斑块体积量化、冠状动脉疾病患者分层和患者管理中的作用有待进一步研究。
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引用次数: 2
Extractability and Bio-Availability of Heavy Metals in Municipal Sludge 城市污泥中重金属的可萃取性及生物利用度
Pub Date : 2009-06-11 DOI: 10.1109/ICBBE.2009.5162840
Peizhu Yuan, You-biao Hu, Hongzhi Xie
Adopted five kinds of extractants respectively to extract the availability of heavy metals Cd, Pb, Ni, Zn, Cufrom the stabilized municipal sludge, at the same time did wheat pot experiments. Then made correlation analysis between the extracting content and the accumulation amount in wheat leaves and roots. It showed that the availability contents of each elements was quited different from the others. Compared with other four extractants, EDTA was in obvious advantages for its best correlation degree. However, comparatively speaking, Pb and Zn don't had so obvious correlation. It may be related with the transfer ability of one element from roots to leaves. The results showed that EDTA was a more satisfactory extractant.
采用5种萃取剂分别从稳定的城市污泥中提取重金属Cd、Pb、Ni、Zn、cu的有效性,同时进行了小麦盆栽试验。然后对提取物含量与小麦叶片和根系的积累量进行相关性分析。结果表明,各元素的有效度含量存在较大差异。与其他4种萃取剂相比,EDTA的关联度最佳,优势明显。但相对而言,Pb和Zn的相关性不明显。这可能与一种元素从根向叶的转移能力有关。结果表明,EDTA是一种较理想的萃取剂。
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引用次数: 1
期刊
2009 3rd International Conference on Bioinformatics and Biomedical Engineering
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