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Algorithm fusion to improve detection of lung cancer on chest radiographs

International Journal of Intelligent Computing and Cybernetics 2012年第1期5卷 111-144页

作者： Gergely Orbán Gábor Horváth Department of Measurement and Information Systems Budapest University of Technology and EconomicsBudapestHungary Intelligent Systems Research Group Budapest University of Technology and EconomicsBudapestHungary

Purpose-the purpose of this paper is to show an efficient method for the detection of signs of early lung *** image processing algorithms are presented for different types of lesions,and a scheme is proposed for the combination of ***/methodology/approach-A computer aided detection(CAD)scheme was developed for detection of lung *** enables different lesion enhancer algorithms,sensitive to specific lesion subtypes,to be used *** image processing algorithms are presented for the detection of small nodules,large ones,and infiltrated *** outputs are merged,the false detection rate is reduced with four separated support vector machine(SVM)*** classifier input comes from a feature selection algorithm selecting from various textural and geometric features.A total of 761 images were used for testing,including the database of the Japanese Society of Radiological Technology(JSRT).Findings-the fusion of algorithms reduced false positives on average by 0.6 per image,while the sensitivity remained 80 per *** the JSRT database the system managed to find 60.2 per cent of lesions at an average of 2.0 false positives per *** effect of using different result evaluation criteria was tested and a difference as high as 4 percentage points in sensitivity was *** system was compared to other published ***/value-the study described in the paper proves the usefulness of lesion enhancement decomposition,while proposing a scheme for the fusion of ***,a new algorithm is introduced for the detection of infiltrated areas,possible signs of lung cancer,neglected by previous solutions.

关键词： Programming and algorithm theory Image processing Cancer Radiography Medical diagnosis Lung nodule Infiltrated area Chest radiograph Lung cancer Early detection

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Reversed－Phase　High－Performance　Liquid　　Chromatographic　Determination　of　Drugs　of　Abuse

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Chinese Chemical Letters 1996年第11期7卷 1027-1028页

作者： Ma, C Duan, HJ Xu, YQ Zhou, th CHINESE ACAD MED SCI INST MAT MEDBEIJING 100050PEOPLES R CHINA BEIJING UNION MED COLL BEIJING 100050PEOPLES R CHINA

A high-performance liquid chromatographic method using uv detection for thedetermination of 10 drugs of abuse is described. the method is sample and sensitive. the linear rangesare 20￣100ng/ml with relative standard ... 详细信息

关键词： Determination Drugs Abuse Chromatographic

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Approximation Algorithms for 3D Orthogonal Knapsack

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Journal of Computer Science & Technology 2008年第5期23卷 749-762页

作者： Florian Diedrich Rolf Harren Klaus Jansen Ralf thle Henning thomas Institute of Computer Science University of Kiel Max-Planck-Institut für Informatik Campus E1466123 Saarbrücken Germany Department of Computer Science ETH ZurichZurich Switzerland

We study non-overlapping axis-parallel packings of 3D boxes with profits into a dedicated bigger box where rotation is either forbidden or permitted, and we wish to maximize the total profit. Since this optimization problem is NP-hard, we focus on approximation algorithms. We obtain fast and simple algorithms for the non-rotational scenario with approximation ratios 9 ＋ ε and 8 ＋ ε, as well as an algorithm with approximation ratio 7 ＋ ε that uses more sophisticated techniques; these are the smallest approximation ratios known for this problem. Furthermore, we show how the used techniques can be adapted to the case where rotation by 90° either around the z-axis or around all axes is permitted, where we obtain algorithms with approximation ratios 6 ＋ ε and 5 ＋ ε, respectively. Finally our methods yield a 3D generalization of a packability criterion and a strip packing algorithm with absolute approximation ratio 29/4, improving the previously best known result of 45/4.

关键词： approximation algorithm computational and structural complexity geometric configurations

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A fouling suppression system in submerged membrane bioreactors using dielectrophoretic forces

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Journal of Environmental Sciences 2015年第3期27卷 139-145页

作者： Alaa H.Hawari Fei Du michael Baune Jorg thming Department of Civil and Architectural Engineering College of Engineering Qatar University Center of Environmental Research and Sustainable Technology University of Bremen

A novel method was developed to suppress membrane fouling in submerged membrane bioreactors. the method is based on the dielectrophoretic （DEP） motion of particles in an inhomogeneous electrical field. Using a real sample ofbiomass as feed, the fouling-suppression performance using DEP with different electrical field intensities （60-160 V） and different frequencies （50-1000 Hz） was investigated. the fouling-suppression performance was found to relate closely with the intensity and frequency of the electrical field. A stronger electrical field was found to better recover the filtrate flux. this is because of a stronger DEP force acting on the biomass par[ides close to the membrane＇s surface. Above an intensity and frequency value of 130 V and 1 kHz, respectively the permeate flux was reduced due to an electrothermal effect.

关键词： Submerged membrane bioreactor Dielectrophoresis Inhomogeneous electric field Fouling

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Studies of Rainfall Induced Landslides Along NH-39 of Manipur,India

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地学前缘 2009年第S1期16卷 53-54页

作者： th.Dolendro Singh Department of Earth Science Manipur University

Landslide is one of the most frequently occurring natural hazards in Manipur which is a tectonically active ***-induced landslides are studied along NH-39 to find out the impact of *** rainfall-induced landslides are usually shallow slips in nature and the volume of slip mass is not very large, the damage caused to the properties and infrastructures can be quite serious due to their highly frequent ***-39,which is one of the life lines of Manipur,is regularly affected by frequent landslides during rainy season and the frequency is increasing at present as compared to the recent *** lands-

关键词： rainfall-induced landslides hazards DEM GIS

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Developing an identities-based approach to support more robust resilience and recovery in heritage planning and management

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Built Heritage 2023年第2期7卷 3-14页

作者： Zachary M.Jones théodora Pappas DASTU Politecnico di MilanoMilanItaly

Resilience has become an increasingly important concept in the cultural heritage feld,particularly in the aftermath of the unprecedented challenges the COVID-19 global pandemic ***,on a conceptual and practical level,resilience remains closely linked to the technical conservation of built heritage,and there remains a need to develop broader approaches inclusive of cultural and socioeconomic *** article investigates the potential applicability of theoretical concepts linked to identity and identities in heritage planning to help fll these gaps and develop approaches that consider resilience and are better able to address a range of unanticipated *** frst review the literature and policy documents to defne and identify the potential for identities-based *** then examine the case of Matera,an extremely fragile world heritage site in southern Italy that has been continuously inhabited for more than 8000 years and provides a relevant example of *** explore the trends and efects of globalised tourism development before the pandemic and the post pandemic emergence of more local/regional and slow tourism patterns,largely based on cultural solutions to local development challenges and knowledge *** this comparison,we analyse the potential and limitations of introducing identities-based concepts into heritage planning as a more robust way to enhance resilience and prepare cities for unexpected future crises.

关键词： identity heritage management plans Matera resilience locally based development mode

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Lattice BGK Simulation of Multipolar Vortex Formation

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Advances in Applied Mathematics and Mechanics 2010年第5期2卷 533-544页

作者： Gábor Házi Gábor Tóth theoretical thermohydraulics Group MTA KFKI Atomic Energy Research InstituteH-1525Konkoly Th29-33BudapestHungary Department of Physics and Chemistry Széchényi István UniversityH-9026Egyetem Tér 1GyörHungary

Analytical and numerical studies have shown that multipolar vortices can emerge in two-dimensional flow due to azimuthal normal mode perturbations of shielded *** has been found that mode 2 and 3 perturbations can lead to the formation of stable tripoles and quadrapoles,respectively,while higher order modes result in more complex unstable compound *** have used the lattice Boltzmann method to simulate the effect of azimuthal perturbations on shielded vortices at moderate Reynolds *** have found that azimuthal normal mode perturbations result in the formation of multipoles,which decay due to viscous *** could also observe that the outcome of such simulations is very sensitive to the displacement of perturbations above wavenumber-3 excitations,in spite of the significant viscosity we used.

关键词： Lattice Boltzmann method shielded vortex stability

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Mineralogy,geochemistry,radioactivity and environmental impacts of Gabal Marwa granites,southeastern Sinai,Egypt

引用

Chinese Journal Of Geochemistry 2011年第2期30卷 175-186页

作者： el Feky M.G. el Mowafy A.A. Abdel Warith A. Nuclear Materials Authority MaadiCairoEgypt

the Gabal Marwa area is located in the southeastern part of Sinai,*** comprises gneisses and migmatites,granodiorites and ***,petrographic,mineralogic and chemical investigations indicated that the Gabal Marwa granites are classified as granodiorites and *** monzogranites constitute the most predominant rock unit exposed in the study *** have been subjected to hydrothermal alterations,especially along the shear ***,desilicification,nametasomatism and development of spotty or dendritic manganese oxides are the most pronounced alteration *** alterations resulted in the increase of TiO2,Al2O3,FeOt,MnO,CaO,MgO,Na2O,K2O and Cr,Zr,Rb,Y and Sr and the decrease of SiO2,P2O5,Ni,Zn,Ba and *** studies indicated that the altered granites belong to high thorium,high uranium *** U,th,U and th,th/U,th and U-K variation diagrams suggested that magmatic processes controlled the distribution of these elements but the effect of hydrothermal alteration processes were clearly *** Scanning electron microscope and X-ray Diffraction analyses indicated that the most important radioactive minerals include uranothorite,thorite,zircon,monazite and *** and Mn minerals were also *** the U,th,Ra and K activity concentrations obtained for all the studied granitic samples,radium equivalent activity(Raeq),external hazard index(Hex),and internal hazard index(Hin),were calculated to assess the radiation hazard to human beings living in dwellings made of the studied *** monzogranites have radioactivity above the proposed acceptable level and,therefore,caution must be taken when these granites are used as building materials.

关键词： granodiorite monzogranites 放射性 Gabal Marwa 西奈埃及

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Influence of Fabric Parameters on microstructure,Mechanical Properties and Failure Mechanisms in Carbon-Fibre Reinforced Composites

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Journal of Materials Science & Technology 2008年第6期24卷 953-959页

作者： B.Wielage D.Richter H.Mucha th.Lampke Chemnitz University of Technology Institute of Composite Materials and Surface TechnologyD-09107 ChemnitzGermany

the effects of fibre/matrix bonding, fabric density, fibre volume fraction and bundle size on microstructure, mechanical properties and failure mechanisms in carbon fibre reinforced composites （plastic and carbon matrix） have been investigated. the microstructure of unloaded and cracked samples was studied by optical microscopy and scanning electron microscopy （SEM）, respectively whereas the mechanical behaviour was examined by 3- point bending experiments. Exclusively one type of experimental resole type phenolic resin was applied. A strong fibre/matrix bonding, which is needed for high strength of carbon fibre reinforced plastic （CFRP） materials leads to severe composite damages during the pyrolysis resulting in low strength, brittle failure and a very low utilisation of the fibres strain to failure in C/C composites. Inherent fabric parameters such as an increasing fabric density or bundle size or a reduced fibre volume fraction introduce inhomogenities to the CFRP＇s microstructure. Results are lower strength and stiffness whereas the strain to failure increases or remains unchanged. Toughness is almost not affected. In C/C composites inhomogenities due to a reduced bundle size reduce strain to failure, strength, stiffness and toughness. Vice versa a declining fibre volume fraction leads to exactly the opposite behaviour. Increasing the fabric density （weight per unit area） causes similar effects as in CFRPs.

关键词： CFRPs C/C Fibre/matrix bonding Fabric density Fibre volume fraction Roving size microstructure Failure behaviour

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Summary of the 11th Conference on Magnetic Confined Fusion theory and Simulation

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Plasma Science and Technology 2024年第10期26卷 1-7页

作者： Guangzhou HAO Jianqiang XU Youwen SUN Zhibin GUO Organizing Committee of the 11th Conference on Magnetic Confined Fusion theory and Simulation Southwestern Institute of Physics Chengdu 610041People’s Republic of China Institute of Plasma Physics Hefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031People’s Republic of China State Key Laboratory of Nuclear Physics and Technology Fusion Simulation CenterSchool of PhysicsPeking UniversityBeijing 100871People’s Republic of China 不详

this conference report summarizes recent progress in plasma theory and simulation that was presented in contributed papers and discussions at the 11th Conference on Magnetic Confined Fusion theory and Simulation(CMCFTS)held in Chengdu,China,27–30 October,*** in various fields has been *** example,results on zonal flow generation by mode coupling,simulations of the key physics of divertor detachment,energetic particle effects on magnetohydrodynamic(MHD)modes in addition to ion-and electron-scale turbulence,physics of edge coherent modes and edge-localized modes,and the optimization of ion heating schemes as well as confinement scenarios using advanced integrated modeling are presented at the *** this conference,the scientific research groups were organized into six categories:(a)edge and divertor physics;(b)impurity,heating,and current drive;(c)energetic particle physics;(d)turbulent transport;(e)MHD instability;and(f)integrated modeling and code development.A summary of the highlighted progress in these working groups is presented.

关键词： magnetic confined fusion(MCF) theory and simulation modeling tokamak

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