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Results 301 - 350 of 3121
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Nicolaï Bart M BM BIOSYST-MeBioS, KU Leuven, 3001 Leuven, Belgium; email: - - 2014
We review nondestructive techniques for measuring internal and external quality attributes of fruit and vegetables, such as color, size and shape, flavor, texture, and absence of defects. The different techniques are organized according to their physical measurement principle. We first describe each technique and then list some examples. As many ...
Nakao Megumi M Graduate School of Informatics, Kyoto University, Japan. Electronic address: - - 2014
This paper introduces a new design and application for direct volume manipulation for visualizing the intraoperative liver resection process. So far, interactive volume deformation and resection have been independently handled due to the difficulty of representing elastic behavior of volumetric objects. Our framework models global shape editing and discontinuous local ...
Tattersall Ian - - 2014
Nobody disputes that nature is meaningfully "packaged" in some way. But debate persists over exactly how (and even whether) the boundaries dividing taxa should (can) be drawn. At one end of the scale, some zealots abstrusely deny real existence to higher taxa.(1) At the other, laborers at the taxonomic rock-face ...
Etiene Tiago - - 2014
We propose an approach for verification of volume rendering correctness based on an analysis of the volume rendering integral, the basis of most DVR algorithms. With respect to the most common discretization of this continuous model (Riemann summation), we make assumptions about the impact of parameter changes on the rendered ...
Tjong Willy W Musculoskeletal Quantitative Imaging Research Group, Department of Radiology and Biomedical Imaging, University of California, San Francisco, California - - 2014
Purpose: The investigation of cortical porosity is an important aspect of understanding biological, pathoetiological, and biomechanical processes occurring within the skeleton. With the emergence of HR-pQCT as a noninvasive tool suitable for clinical use, cortical porosity at appendicular sites can be directly visualized in vivo. The aim of this study ...
Feischl M M Institute for Analysis and Scientific Computing, Vienna University of Technology, Wiedner Hauptstraße 8-10, A-1040 Wien, - - 2014
We consider the solution of a second order elliptic PDE with inhomogeneous Dirichlet data by means of adaptive lowest-order FEM. As is usually done in practice, the given Dirichlet data are discretized by nodal interpolation. As model example serves the Poisson equation with mixed Dirichlet-Neumann boundary conditions. For error estimation, ...
Méndez I I Department of Medical Physics, Institute of Oncology Ljubljana, Zaloška cesta 2, Ljubljana 1000, - - 2014
Purpose: Different multichannel methods for film dosimetry have been proposed in the literature. Two of them are the weighted mean method and the method put forth by Micke et al. ["Multichannel film dosimetry with nonuniformity correction," Med. Phys. 38, 2523-2534 (2011)] and Mayer et al. ["Enhanced dosimetry procedures and assessment ...
Yoshida Kenichiro K Kao Corporation, Beauty Research Center, 2-1-3 Bunka, Sumida-ku, Tokyo 131-8501, - - 2014
ABSTRACT. To quantitatively evaluate skin chromophores over a wide region of curved skin surface, we propose an approach that suppresses the effect of the shading-derived error in the reflectance on the estimation of chromophore concentrations, without sacrificing the accuracy of that estimation. In our method, we use multiple regression analysis, ...
Benites Fernando F Department of Computer and Information Science, University of Konstanz, Konstanz, - - 2014
The constantly increasing volume and complexity of available biological data requires new methods for their management and analysis. An important challenge is the integration of information from different sources in order to discover possible hidden relations between already known data. In this paper we introduce a data mining approach which ...
Cheong Siew Ann SA 1] Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Republic of Singapore [2] Complexity Program, Nanyang Technological University, 60 Nanyang View, Singapore 639673, Republic of - - 2014
Predicting how large an earthquake can be, where and when it will strike remains an elusive goal in spite of the ever-increasing volume of data collected by earth scientists. In this paper, we introduce a universal model of fusion-fission processes that can be used to predict earthquakes starting from catalog ...
Hilkhuysen Gaston G Department of Speech, Language and Hearing Sciences, University College London, 2 Wakefield Street, London WC1N 1PF, United - - 2014
Using the data presented in the accompanying paper [Hilkhuysen et al., J. Acoust. Soc. Am. 131, 531-539 (2012)], the ability of six metrics to predict intelligibility of speech in noise before and after noise suppression was studied. The metrics considered were the Speech Intelligibility Index (SII), the fractional Articulation Index ...
Charaudeau Segolene S INSERM, UMR S 707, Paris, France ; Université Pierre et Marie Curie - Paris 6, Paris, France ; Institut Jacques Monod, Paris, France ; Université Denis Diderot, Paris, - - 2014
Commuting data is increasingly used to describe population mobility in epidemic models. However, there is little evidence that the spatial spread of observed epidemics agrees with commuting. Here, using data from 25 epidemics for influenza-like illness in France (ILI) as seen by the Sentinelles network, we show that commuting volume ...
Magis David D Department of Education (B32), University of Liege, Boulevard du Rectorat 5, 4000 Liege, Belgium, - - 2014
The Infit mean square W and the Outfit mean square U are commonly used person fit indexes under Rasch measurement. However, they suffer from two major weaknesses. First, their asymptotic distribution is usually derived by assuming that the true ability levels are known. Second, such distributions are even not clearly ...
Aly Sharif S SS Veterinary Medicine Teaching and Research Center, School of Veterinary Medicine, University of California, Davis, 18830 Road 112, Tulare, CA 93274 USA ; Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, One Shields Avenue, Davis, CA 95616 - - 2014
The Intraclass Correlation Coefficient (ICC) is commonly used to estimate the similarity between quantitative measures obtained from different sources. Overdispersed data is traditionally transformed so that linear mixed model (LMM) based ICC can be estimated. A common transformation used is the natural logarithm. The reliability of environmental sampling of fecal ...
Moutselos Konstantinos K 0000-0002-6759-8540 Department of Computer Science and Biomedical Informatics, University of Thessaly, Papasiopoulou 2-4, 35100 Lamia, - - 2014
In this work the effects of simple imputations are studied, regarding the integration of multimodal data originating from different patients. Two separate datasets of cutaneous melanoma are used, an image analysis (dermoscopy) dataset together with a transcriptomic one, specifically DNA microarrays. Each modality is related to a different set of ...
Christensen Birgitte H - - 2014
Increased navicular drop is associated with increased risk of lower extremity overuse injuries and foot orthoses are often prescribed to reduce navicular drop. For laboratory studies, transparent shoes may be used to monitor the effect of orthoses but no clinically feasible methods exist. We have developed a stretch-sensor that allows ...
Wallace David J DJ Clinical Research, Investigation and Systems Modeling of Acute Illness (CRISMA) Center, the Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA; The Department of Emergency Medicine, University of Pittsburgh School of Medicine, Pittsburgh, - - 2014
Estimates of prehospital transport times are an important part of emergency care system research and planning; however, the accuracy of these estimates is unknown. The authors examined the accuracy of three estimation methods against observed transport times in a large cohort of prehospital patient transports. This was a validation study ...
Avila Agustín Brau AB Department of Design and Manufacturing Engineering, University of Zaragoza, María de Luna 3, Zaragoza 50018, Spain. - - 2014
During the last years, the use of Portable Coordinate Measuring Machines (PCMMs) in industry has increased considerably, mostly due to their flexibility for accomplishing in-line measuring tasks as well as their reduced costs and operational advantages as compared to traditional coordinate measuring machines (CMMs). However, their operation has a significant ...
Zhou Qi Q Department of Electrical Engineering at the Florida International University, Miami, FL 33174, - - 2014
This study establishes a new approach for combining neuroimaging and neuropsychological measures for an optimal decisional space to classify subjects with Alzheimer's disease (AD). This approach relies on a multivariate feature selection method with different MRI normalization techniques. Subcortical volume, cortical thickness, and surface area measures are obtained using MRIs ...
Raknes Guttorm G National Centre for Emergency Primary Health Care, Uni Health, Uni Research, Bergen, - - 2014
We describe a method that uses crowdsourced postcode coordinates and Google maps to estimate average distance and travel time for inhabitants of a municipality to a casualty clinic in Norway. The new method was compared with methods based on population centroids, median distance and town hall location, and we used ...
Bará Salvador - - 2014
In order to work in a consistent way with Zernike aberration coefficients estimated in different pupils, it is necessary to refer them to a common pupil size. Two standard approaches can be used to that end: to rescale algebraically the coefficients estimated in the original pupil or to refit them ...
Li Yanling Y Department of Civil and Environmental Engineering, University of Hawaii at Manoa, 2540 Dole Street, Holmes Hall 383, Honolulu, Hawaii 96822, USA E-mail: - - 2014
Green roofs reduce runoff from impervious surfaces in urban development. This paper reviews the technical literature on green roof hydrology. Laboratory experiments and field measurements have shown that green roofs can reduce stormwater runoff volume by 30 to 86%, reduce peak flow rate by 22 to 93% and delay the ...
Shi Bao B Institute of System Science and Mathematics, Naval Aeronautical and Astronautical University, Yantai 264001, - - 2014
This paper extends the conventional Model Reference Adaptive Control systems to fractional ones based on the theory of fractional calculus. A control law and an incommensurate fractional adaptation law are designed for the fractional plant and the fractional reference model. The stability and tracking convergence are analyzed using the frequency ...
He Daojiang D 0000-0002-1152-4980 Department of Statistics, Anhui Normal University, Wuhu 241000, - - 2014
We propose a new estimator to combat the multicollinearity in the linear model when there are stochastic linear restrictions on the regression coefficients. The new estimator is constructed by combining the ordinary mixed estimator (OME) and the principal components regression (PCR) estimator, which is called the stochastic restricted principal components ...
Schrago C G CG Departamento de Genética, Universidade Federal do Rio de Janeiro, Brasil - - 2014
The origin of New World anthropoids has received renewed attention since the advent of molecular dating methods that relax the assumption of a strict molecular clock. However, the studies conducted to date have estimated the time of the separation of New World and Old World anthropoids at values as different ...
Kunisawa Takayuki T Surgical Operation Department, Asahikawa Medical University Hospital, Hokkaido, - - 2014
Olprinone decreases the cardiac preload and/or afterload because of its vasodilatory effect and increases myocardial contractility by inhibiting phosphodiesterase III. The objective of this study was to characterize the population pharmacokinetics of olprinone after a single continuous infusion in healthy male volunteers. We used 500 plasma concentration data points collected ...
Li Wenzan W State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China E-mail: xyli@rcees.ac.cn; University of Chinese Academy of Sciences, Beijing, - - 2014
Identification of nonpoint source (NPS) pollution is a great challenge in the North China Plain, which has modified rivers and insufficient data. In this study, a simple and reasonable method was developed to estimate the total nitrogen (TN) load in rural areas of the North China Plain. The method was ...
Sparks C - - 2014
The research project described in this article was undertaken to establish baseline information for a Health Impact Assessment (HIA) project of Interstate 75 road construction in Cincinnati, Ohio. The objective of the authors' study was to evaluate the concentrations of elemental and organic carbon (EC and OC), as well as ...
Fu Yi-Ge YG Department of Automation, Tsinghua University, Beijing 100084, China. - - 2014
As the use of camera networks has expanded, camera placement to satisfy some quality assurance parameters (such as a good coverage ratio, an acceptable resolution constraints, an acceptable cost as low as possible, etc.) has become an important problem. The discrete camera deployment problem is NP-hard and many heuristic methods ...
Liu Jingyuan J Assistant Professor of Wang Yanan Institute for Studies in Economics and Department of Statistics and Fujian Key Laboratory of Statistical Science, Xiamen University, - - 2014
This paper is concerned with feature screening and variable selection for varying coefficient models with ultrahigh dimensional covariates. We propose a new feature screening procedure for these models based on conditional correlation coefficient. We systematically study the theoretical properties of the proposed procedure, and establish their sure screening property and ...
Boyer Sebastien S MIVEGEC, Institut de Recherche pour le Developpement (IRD) UMR 224, Centre National de la Recherche Scientifique (CNRS 5290), Universités Montpellier 1 and 2, Montpellier, France; Centre de Recherche et de Veille sur les Maladies Emergentes dans l'Océan Indien (CRVOI), Sainte Clotilde, La Reunion Island, France; Unité d'Entomologie Médicale, Institut Pasteur de Madagascar, Antananarivo, - - 2014
Following the 2006 Chikungunya disease in La Reunion, questions were raised concerning the monitoring survey of Aedes albopictus populations and the entomological indexes used to evaluate population abundance. The objectives of the present study were to determine reliable productivity indexes using a quantitative method to improve entomological surveys and mosquito ...
Aydin Umit U Institute for Biomagnetism and Biosignalanalysis, Westfälische Wilhelms-Universität Münster, Münster, - - 2014
To increase the reliability for the non-invasive determination of the irritative zone in presurgical epilepsy diagnosis, we introduce here a new experimental and methodological source analysis pipeline that combines the complementary information in EEG and MEG, and apply it to data from a patient, suffering from refractory focal epilepsy. Skull ...
Aldababseh Mahmoud M Department of Electronic Engineering, Al-Quds University, P.O. Box 20002, Jerusalem, - - 2014
We address the problem of estimating time-varying fading channels in filter bank multicarrier (FBMC/OQAM) wireless systems based on pilot symbols. The standard solution to this problem is the least square (LS) estimator or the minimum mean square error (MMSE) estimator with possible adaptive implementation using recursive least square (RLS) algorithm ...
Wang Jinfeng J School of Statistics and Mathematics, Inner Mongolia University of Finance and Economics, Hohhot 010070, - - 2014
We propose and analyze a new expanded mixed element method, whose gradient belongs to the simple square integrable space instead of the classical H(div; Ω) space of Chen's expanded mixed element method. We study the new expanded mixed element method for convection-dominated Sobolev equation, prove the existence and uniqueness for finite ...
Rhodes Jonathan R JR School of Geography, Planning and Environmental Management, The University of Queensland, Brisbane, Queensland, Australia; ARC Centre of Excellence for Environmental Decisions, The University of Queensland, Brisbane, Queensland, Australia; NERP Environmental Decisions Hub, The University of Queensland, Brisbane, Queensland, - - 2014
Roads and vehicular traffic are among the most pervasive of threats to biodiversity because they fragmenting habitat, increasing mortality and opening up new areas for the exploitation of natural resources. However, the number of vehicles on roads is increasing rapidly and this is likely to continue into the future, putting ...
Si Weijian W Department of Information and Communication Engineering, Harbin Engineering University, Harbin 150001, - - 2014
A novel direction of arrival (DOA) estimation method in compressed sensing (CS) is presented, in which DOA estimation is considered as the joint sparse recovery from multiple measurement vectors (MMV). The proposed method is obtained by minimizing the modified-based covariance matching criterion, which is acquired by adding penalties according to ...
Santolaria Jorge J 0000-0001-7316-0003 Departamento de Ingeniería de Diseño y Fabricación, Edificio Torres Quevedo, EINA, Universidad de Zaragoza, 50018 Zaragoza, - - 2014
A new procedure for the calibration of an articulated arm coordinate measuring machine (AACMM) is presented in this paper. First, a self-calibration algorithm of four laser trackers (LTs) is developed. The spatial localization of a retroreflector target, placed in different positions within the workspace, is determined by means of a ...
Gupta Maneesha M Netaji Subhash Institute of Technology, Sector 3, Dwarka, New Delhi 110078, - - 2014
Different evolutionary algorithms (EAs), namely, particle swarm optimization (PSO), genetic algorithm (GA), and PSO-GA hybrid optimization, have been used to optimize digital differential operators so that these can be better fitted to exemplify their new improved fractional order differentiator counterparts. First, the paper aims to provide efficient 2nd and 3rd ...
Szpala Stanislaw S BC Cancer Agency (Fraser Valley Centre). - - 2014
Partial transmission through rounded leaf ends of Varian multileaf collimators (MLC) is accounted for with a parameter called the dosimetric leaf gap (DLG). Verification of the value of the DLG is needed when the dose delivery is accompanied by gantry rotation in VMAT plans. We compared the doses measured with ...
Kane Emily A EA Department of Biology, University of California, , 900 University Avenue, Riverside, CA 92521, - - 2014
Prey capture is critical for survival, and differences in correctly positioning and timing a strike (accuracy) are likely related to variation in capture success. However, an ability to quantify accuracy under natural conditions, particularly for fishes, is lacking. We developed a predictive model of suction hydrodynamics and applied it to ...
Yohannes S - - 2014
The association between physiologically dependent pharmacokinetic parameters (CL(B), T1/2beta, Vd(ss)) of marbofloxacin and body weight was studied in eight animal species based on allometric equation Y = aWb, where 'Y' is the pharmacokinetic parameter, 'W' is body weight, 'a' is allometric coefficient (intercept) and 'b' is the exponent that describes ...
Marković Dana D DD 0000-0002-6033-5457 Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11000 Belgrade, - - 2014
Numerous regression approaches to isotherm parameters estimation appear in the literature. The real insight into the proper modeling pattern can be achieved only by testing methods on a very big number of cases. Experimentally, it cannot be done in a reasonable time, so the Monte Carlo simulation method was applied. ...
Alves Gelio G National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, Maryland, United States of - - 2014
Meta-analysis methods that combine [Formula: see text]-values into a single unified [Formula: see text]-value are frequently employed to improve confidence in hypothesis testing. An assumption made by most meta-analysis methods is that the [Formula: see text]-values to be combined are independent, which may not always be true. To investigate the ...
Park No-Wook NW 0000-0002-9778-3624 Department of Geoinformatic Engineering, Inha University, Incheon 402-751, Republic of - - 2014
This paper compares the predictive performance of different geostatistical kriging algorithms for intertidal surface sediment facies mapping using grain size data. Indicator kriging, which maps facies types from conditional probabilities of predefined facies types, is first considered. In the second approach, grain size fractions are first predicted using cokriging and ...
Penin Alexandr A 0000-0002-3127-2979 "D. Ghitu" Institute of Electronic Engineering and Nanotechnologies, Academy of Sciences of Moldova, Academiei Street 3/3, 2028 Chisinau, - - 2014
The droop current-sharing method for voltage sources of a limited capacity is considered. Influence of equalizing resistors and load resistor is investigated on uniform distribution of relative values of currents when the actual loading corresponds to the capacity of a concrete source. Novel concepts for quantitative representation of operating regimes ...
Lotfi Taher T Department of Mathematics, Hamedan Branch, Islamic Azad University, Hamedan 68138, - - 2014
It is attempted to present an efficient and free derivative class of Steffensen-like methods for solving nonlinear equations. To this end, firstly, we construct an optimal eighth-order three-step uniparameter without memory of iterative methods. Then the self-accelerator parameter is estimated using Newton's interpolation in such a way that it improves ...
Güthlin Denise D Chair of Wildlife Ecology and Management, University of Freiburg, Freiburg, Baden-Württemberg, - - 2014
Due to time and financial constraints indices are often used to obtain landscape-scale estimates of relative species abundance. Using two different field methods and comparing the results can help to detect possible bias or a non monotonic relationship between the index and the true abundance, providing more reliable results. We ...
Liu Yang Y 0000-0001-8218-0196 School of Mathematical Sciences, Inner Mongolia University, Hohhot 010021, - - 2014
A kind of new mixed element method for time-fractional partial differential equations is studied. The Caputo-fractional derivative of time direction is approximated by two-step difference method and the spatial direction is discretized by a new mixed element method, whose gradient belongs to the simple (L (2)(Ω)(2)) space replacing the complex ...
Joseph Leonard H LH Department of Physical Therapy, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand; Physiotherapy Program, School of Rehabilitation Sciences, Faculty of Allied Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur, - - 2014
Objective: The aim of this study was to investigate the intra- and inter-rater reliability of ultrasonography (US) to measure anterior translation of the humeral head (ATHH) among healthy subjects and patients with sacroiliac joint dysfunction. Methods: The study included a total of 22 shoulder joints from 11 subjects. Six subjects ...
Feischl Michael M Institute for Analysis and Scientific Computing, Vienna University of Technology, Wiedner Hauptstr. 8-10/E101/4, 1040 Wien, - - 2014
In the context of the adaptive finite element method (FEM), ZZ-error estimators named after Zienkiewicz and Zhu (1987) [52] are mathematically well-established and widely used in practice. In this work, we propose and analyze ZZ-type error estimators for the adaptive boundary element method (BEM). We consider weakly singular and hyper-singular ...
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