Search Results
Results 1 - 50 of 2047
1 2 3 4 5 6 7 8 9 10 >
Zhu Guohun G Faculty of Health, Engineering and Sciences, University of Southern Queensland, Toowoomba, QLD, 4350, Australia, - - 2015
Most epileptic EEG classification algorithms are supervised and require large training datasets, that hinder their use in real time applications. This chapter proposes an unsupervised Multi-Scale K-means (MSK-means) MSK-means algorithm to distinguish epileptic EEG signals and identify epileptic zones. The random initialization of the K-means algorithm can lead to wrong ...
Wan Hui H Jiangsu Key Laboratory for NSLSCS, School of Mathematical Science, Nanjing Normal University, Nanjing, 210023, China. - - 2014
In this paper, we formulate a new model with maturation delay for mosquito population incorporating the impact of blood meal resource for mosquito reproduction. Our results suggest that except for the usual crowded effect for adult mosquitoes, the impact of blood meal resource in a given region determines the mosquito ...
Rebelo Joao - - 2014
This paper presents an extension of the time-domain passivity control approach to a 4-channel bilateral controller under the effects of time delays. Time-domain passivity control has been used successfully to stabilize teleoperation systems with position-force and position-position controllers; however, the performance with such control architectures is sub-optimal both with and ...
Liu Pin-Lin PL Department of Automation Engineering Institute of Mechatronoptic System, Chienkuo Technology University, Changhua 500, Taiwan, ROC. Electronic address: - - 2014
This paper is concerned with the improved delay-range-dependent stability and robust stability criteria for linear systems with time-varying delay and norm-bounded uncertainties. In order to obtain much less conservative criteria, a Lyapunov-Krasovskii functional (LKF), which makes use of the information of both the lower and upper bounds of the interval ...
Boguñá Marian M Departament de Física Fonamental, Universitat de Barcelona, Martí i Franquès 1, 08028 Barcelona, - - 2014
We present a simple and general framework to simulate statistically correct realizations of a system of non-Markovian discrete stochastic processes. We give the exact analytical solution and a practical and efficient algorithm like the Gillespie algorithm for Markovian processes, with the difference being that now the occurrence rates of the ...
Lee Soo Min SM Division of Wood Chemistry and Microbiology, Department of Forest Products, Korea Forest Research Institute, Seoul 130-712, Republic of Korea; Forest and Environment, Center for International Forestry Research, Bogor 16115, - - 2014
In this study, the optimal conditions for biomass torrefaction were determined by comparing the gain of energy content to the weight loss of biomass from the final products. Torrefaction experiments were performed at temperatures ranging from 220 to 280°C using 20-80min reaction times. Polynomial regression models ranging from the 1st ...
Boersen Nathan N Department of Industrial and Physical Pharmacy - - 2014
Abstract Objective: While previous research has demonstrated roller compaction operating parameters strongly influence the properties of the final product, a greater emphasis might be placed on the raw material attributes of the formulation. There were two main objectives to this study. First, to assess the effects of different process variables ...
Islam Shafiqul S University of Ottawa, Ottawa, Canada; Carleton University, Ottawa, Canada; KUSTAR, Abu Dhabi, UAE. Electronic address: - - 2014
In this paper, we address stability and tracking control problem of bilateral shared autonomous systems in the presence of passive and nonpassive input interaction forces. The design comprises delayed position and position-velocity signals with the known and unknown structures of the master and slave manipulator dynamics. Using novel Lyapunov-Krasovskii functional, ...
Zhang Xianguo - - 2014
For the real-time and low-delay video surveillance and teleconferencing applications, the newly video coding standard HEVC can achieve much higher coding efficiency over H.264/AVC. However, we still argue that the hierarchical prediction structure in the HEVC low-delay encoder still does not fully utilize the special characteristics of surveillance and conference ...
Koch Gilbert G Department of Pharmaceutical Sciences, State University of New York at Buffalo, 403 Kapoor Hall, Buffalo, NY , 14214, USA, - - 2014
In pharmacokinetics/pharmacodynamics (PKPD) the measured response is often delayed relative to drug administration, individuals in a population have a certain lifespan until they maturate or the change of biomarkers does not immediately affects the primary endpoint. The classical approach in PKPD is to apply transit compartment models (TCM) based on ...
Untaroiu Costin D CD Virginia Tech and Wake Forest University School of Biomedical Engineering and Sciences, Blacksburg, VA 24060, USA. Electronic address: - - 2014
The rapid advancement in computational power has made human finite element (FE) models one of the most efficient tools for assessing the risk of abdominal injuries in a crash event. In this study, specimen-specific FE models were employed to quantify material and failure properties of human liver parenchyma using a ...
Arenas Villafranca Jose Javier JJ Jose Javier Arenas Villafranca is Hospital Pharmacy Resident; Araceli Gómez Sánchez is Pharmacist; Miriam Nieto Guindo, BCPS, is Pharmacist; and Vicente Faus Felipe, Pharm.D., is Director of Pharmacy, Pharmacy Service, Costa del Sol Hospital, Marbella (Málaga), Spain. - - 2014
Failure mode and effects analysis (FMEA) was used to identify potential errors and to enable the implementation of measures to improve the safety of neonatal parenteral nutrition (PN). FMEA was used to analyze the preparation and dispensing of neonatal PN from the perspective of the pharmacy service in a general ...
Lee Minjung M Department of Computer Science and Statistics, Chosun University, Gwangju, South - - 2014
We propose a nonparametric approach for cumulative incidence estimation when causes of failure are unknown or missing for some subjects. Under the missing at random assumption, we estimate the cumulative incidence function using multiple imputation methods. We develop asymptotic theory for the cumulative incidence estimators obtained from multiple imputation methods. ...
Gosho Masahiko M Unit of Biostatistics, Advanced Medical Research Center, Aichi Medical University, 1-1, Yazakokarimata, Nagakute, Aichi, 480-1195, - - 2014
The accelerated failure time model is presented as an alternative to the proportional hazard model in the analysis of survival data. We investigate the effect of covariates omission in the case of applying a Weibull accelerated failure time model. In an uncensored setting, the asymptotic bias of the treatment effect ...
Carreras B A BA BACV Solutions, 110 Mohawk Road, Oak Ridge, Tennessee 37830, - - 2014
Failures of the complex infrastructures society depends on having enormous human and economic cost that poses the question: Are there ways to optimize these systems to reduce the risks of failure? A dynamic model of one such system, the power transmission grid, is used to investigate the risk from failure ...
Mirzaei Majid M Department of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran P.O. Box: 14115-143. Electronic address: - - 2014
This paper presents a novel method for fast and reliable prediction of the failure strength of human proximal femur, using the quantitative computed tomography (QCT)-based linear finite element analysis (FEA). Ten fresh frozen human femora (age: 34±16) were QCT-scanned and the pertinent 3D voxel-based finite element models were constructed. A ...
Abdala Carolina C Division of Communication and Auditory Neuroscience, House Research Institute, 2100 West 3rd Street, Los Angeles, California - - 2014
A consistent relationship between reflection-emission delay and cochlear tuning has been demonstrated in a variety of mammalian species, as predicted by filter theory and models of otoacoustic emission (OAE) generation. As a step toward the goal of studying cochlear tuning throughout the human lifespan, this paper exploits the relationship and ...
Janssens Pim Mw PM Laboratory of Clinical Chemistry and Haematology, Rijnstate Hospital, The - - 2014
Prospective risk analysis (PRA) is an essential element in quality assurance for clinical laboratories. Practical approaches to conducting PRA in laboratories, however, are scarce. On the basis of the classical Failure Mode and Effect Analysis method, an approach to PRA was developed for application to key laboratory processes. First, the ...
Campbell Alan O AO Department of Psychology, Clemson University, Clemson, SC 29634, USA; Applied Building Sciences Inc., Charleston, SC 29405, USA. Electronic address: - - 2014
Accidents involving portable ladders are a common cause of serious occupational and non-occupational injuries throughout the industrialized world. Many of these injuries could be prevented with better instruction on the proper usage of portable ladders. Research is reported that focused on both the human factors and engineering aspects of portable ...
Trajkovski Ana - - 2014
Cervical spine ligaments have an important role in providing spinal cord stability and restricting excessive movements. Therefore, it is of great importance to study mechanical properties and model the response of these ligaments. The aim of this study is to characterize ageing effects on failure properties and model damage of ...
Shah Sachin - - 2014
Ascending thoracic aortic aneurysms (ATAA) have a high propensity for dissection, which occurs when the hemodynamic load exceeds the mechanical strength of the aortic media. Despite our recognition of this essential fact, the complex architecture of the media has made a predictive model of medial failure - even in the ...
Khan S U SU School of Engineering & Applied Sciences, ISRA University, Islamabad 44000, - - 2014
Three issues regarding sensor failure at any position in the antenna array are discussed. We assume that sensor position is known. The issues include raise in sidelobe levels, displacement of nulls from their original positions, and diminishing of null depth. The required null depth is achieved by making the weight ...
Yun Wei - - 2014
Smart energy grid is an emerging area for new applications of machine learning in a nonstationary environment. Such a nonstationary environment emerges when large-scale failures occur at power networks because of external disruptions such as hurricanes and severe storms. Power distribution networks lie at the edge of the grid, and ...
Li Bin B School of Control Science and Engineering, Shandong University, Jinan, Shandong 250061, China ; School of Science, Qilu University of Technology, Jinan, Shandong 250353, - - 2014
Robot execution failures prediction (classification) in the robot tasks is a difficult learning problem due to partially corrupted or incomplete measurements of data and unsuitable prediction techniques for this prediction problem with little learning samples. Therefore, how to predict the robot execution failures problem with little (incomplete) or erroneous data ...
Mayse Jeffrey D JD Department of Psychological and Brain Sciences, Johns Hopkins University Baltimore, MD, USA ; Neural Circuits and Cognition Unit, Laboratory of Behavioral Neuroscience, National Institute on Aging, National Institutes of Health Baltimore, MD, - - 2014
Inhibiting actions inappropriate for the behavioral context, or inhibitory control, is essential for survival and involves both reactively stopping the current prepared action and proactively adjusting behavioral tendencies to increase future performance. A powerful paradigm widely used in basic and clinical research to study inhibitory control is the stop signal ...
Li Huixian H School of Computer Science and Engineering, Northwestern Polytechnical University, Xi'an, China; Department of Computer Science, Wayne State University, Detroit, Michigan, United States of - - 2014
Long-running applications are often subject to failures. Once failures occur, it will lead to unacceptable system overheads. The checkpoint technology is used to reduce the losses in the event of a failure. For the two-level checkpoint recovery scheme used in the long-running tasks, it is unavoidable for the system to ...
Wurpts Ingrid C IC Department of Psychology, Arizona State University Tempe, AZ, - - 2014
The purpose of this study was to examine in which way adding more indicators or a covariate influences the performance of latent class analysis (LCA). We varied the sample size (100 ≤ N ≤ 2000), number, and quality of binary indicators (between 4 and 12 indicators with conditional response probabilities ...
Hocheng Hong H Department of Power Mechanical Engineering, National Tsinghua University, No.101, Section 2 Kuang Fu Road, Hsinchu 30013, Taiwan. - - 2014
Stretchable microelectromechanical systems (MEMS) possess higher mechanical deformability and adaptability than devices based on conventional solid and flexible substrates, hence they are particularly desirable for biomedical, optoelectronic, textile and other innovative applications. The stretchability performance can be evaluated by the failure strain of the embedded routing and the strain applied ...
Abe Yoshiro Y Department of Plastic and Reconstructive Surgery, Institute of Health Biosciences, the University of Tokushima Graduate - - 2014
Mandibular reconstruction using a fibular graft is a difficult procedure that requires technical expertise to enable adequate occlusal function and restore an aesthetic appearance. Here we used three-dimensional (3D) sodium chloride (NaCl) models for simulated mandibular reconstruction surgery. This study aimed to reveal the accuracy of mandibular reconstruction with fibular ...
Ning Jing J Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, - - 2013
This article targets the estimation of a time-dependent association measure for bivariate failure times, the conditional cause-specific hazards ratio (CCSHR), which is a generalization of the conditional hazards ratio (CHR) to accommodate competing risks data. We model the CCSHR as a parametric regression function of time and event causes and ...
Han Seung-Ryong - - 2013
Utility systems such as power and communication systems regularly experience significant damage and loss of service during hurricanes. A primary damage mode for these systems is failure of wooden utility poles that support conductors and communication lines. In this article, we present an approach for combining structural reliability models for ...
Armon Bruce D - - 2013
The September 23, 2013, deadline for covered entities, business associates, and their subcontractors to comply with new HIPAA rules is fast approaching. Now is the time to ensure HIPAA compliance before the deadline arrives and avoid any penalties that could result from failure to act.
Guidi G - - 2013
In this study, we describe an automatic classifier of patients with Heart Failure designed for a telemonitoring scenario, improving the results obtained in our previous works. Our previous studies showed that the technique that better processes the heart failure typical telemonitoring-parameters is the Classification Tree. We therefore decided to analyze ...
James William H - - 2013
The Trivers-Willard (TW) argument may be interpreted to yield a large class of true predictions, and a small class of false predictions. This would explain the relative numbers of empirical successes and failures of TW. It is argued here that in mammals (including man), one cause of these failures is ...
Titman Andrew C - - 2013
A likelihood based approach to obtaining non-parametric estimates of the failure time distribution is developed for the copula based model of Wang et al. (Lifetime Data Anal 18:434-445, 2012) for current status data under dependent observation. Maximization of the likelihood involves a generalized pool-adjacent violators algorithm. The estimator coincides with ...
Untaroiu Costin D - - 2013
The liver is one of the most frequently injured abdominal organs during motor vehicle crashes. Realistic car crash simulations require incorporating strain-rate dependent mechanical properties of soft tissue in finite element (FE) material models. This study presents a total of 30 tension tests performed on fresh bovine liver parenchyma at ...
Hu Tianle - - 2013
The cross-ratio is an important local measure that characterizes the dependence between bivariate failure times. To estimate the cross-ratio in follow-up studies where delayed entry is present, estimation procedures need to account for left truncation. Ignoring left truncation yields biased estimates of the cross-ratio. We extend the method of Hu ...
Baydemir Canan - - 2013
OBJECTIVE: The specific purpose of this study was to investigate the validity of the Turkish version of the European Heart Failure Self-care Behavior Scale by applying to 494 Turkish Heart Failure Patients. METHODS: The study was conducted as a cross-sectional sample survey, between October 2012 and January 2013. The 494 ...
Scheidegger Andreas - - 2013
Predictions of the expected number of failures of water distribution network pipes are important to develop an optimal management strategy. A number of probabilistic pipe failure models have been proposed in the literature for this purpose. They have to be calibrated on failure records. However, common data management practices mean ...
Schneider Christian M - - 2013
Interconnected networks have been shown to be much more vulnerable to random and targeted failures than isolated ones, raising several interesting questions regarding the identification and mitigation of their risk. The paradigm to address these questions is the percolation model, where the resilience of the system is quantified by the ...
Mayordomo-Colunga Juan - - 2013
PURPOSE: Our objective was to assess whether SpO2/FiO2 (SF) ratio could be a useful NIV outcome predictor in children with acute respiratory failure (ARF) and tried to develop a predictive model of NIV failure. METHODS: Prospective, observational, multicenter study. Episodes of ARF-fulfilling inclusion criteria from 15 January 2010 to 14 ...
Nishiyama Kyle K - - 2013
Finite element (FE) analysis based on quantitative computed tomography (QCT) images is an emerging tool to estimate bone strength in a specific patient or specimen; however, it is limited by the computational power required and the associated time required to generate and solve the models. Thus, our objective was to ...
Lee Anna - - 2013
OBJECTIVE:: To facilitate the planning of perioperative care pathways, a fast-track failure prediction model has been developed in patients undergoing cardiac surgery. This study externally validated such a fast-track failure risk prediction model and determined the potential clinical consequences to ICU bed utilization. DESIGN:: Prospective cohort study. SETTING:: Cardiothoracic Surgery ...
Shang C - - 2013
A numerical method to predict the break force of curved faced tablets is proposed. The constitutive model and the failure criteria necessary to obtain predictions consistent with experimental data are identified. A modified Drucker-Prager cap model together with a maximum principal stress based failure criteria were found sufficient to predict ...
Caballero Morales Santiago Omar - - 2013
The application of Preventive Maintenance (PM) and Statistical Process Control (SPC) are important practices to achieve high product quality, small frequency of failures, and cost reduction in a production process. However there are some points that have not been explored in depth about its joint application. First, most SPC is ...
Huang Xuqing - - 2013
As economic entities become increasingly interconnected, a shock in a financial network can provoke significant cascading failures throughout the system. To study the systemic risk of financial systems, we create a bi-partite banking network model composed of banks and bank assets and propose a cascading failure model to describe the ...
Alwan Faris M - - 2013
The reliability of the electrical distribution system is a contemporary research field due to diverse applications of electricity in everyday life and diverse industries. However a few research papers exist in literature. This paper proposes a methodology for assessing the reliability of 33/11 Kilovolt high-power stations based on average time ...
Bryant Robby J - - 2013
Single points of failure may spell disaster for businesses that have not adequately identified and mitigated these critical risks. A single point of failure audit will identify the single points of failure in all functional areas that may negatively impact organisational processes and process flows. This paper provides a holistic ...
Wang Wei-Ming WM College of Civil Engineering of Shandong University of Science and Technology, Qingdao, Shandong 266590, - - 2013
Mining areas in western China are mainly located in soft rock strata with poor bearing capacity. In order to make the deformation failure mechanism and strength behavior of weakly consolidated soft mudstone and coal rock hosted in Ili No. 4 mine of Xinjiang area clear, some uniaxial and triaxial compression ...
Flanagan Owen O Department of Philosophy, Duke University , Durham, NC , - - 2013
Addiction is a person-level phenomenon that involves twin normative failures. A failure of normal rational effective agency or self-control with respect to the substance; and shame at both this failure, and the failure to live up to the standards for a good life that the addict himself acknowledges and aspires ...
1 2 3 4 5 6 7 8 9 10 >