A Parabolized Navier-Stokes Method For Wind Farm Applications, 2015 University of Tennessee at Chattanooga
A Parabolized Navier-Stokes Method For Wind Farm Applications, Anshul Mittal
Masters Theses and Doctoral Dissertations
Fluid flow simulations play an important role in the wind industry. With the development of large wind farms, flow simulations through an entire wind farm are becoming a necessity. These are required for designing the layout of new wind farms in the development stage and for forecasting power production from the existing ones for operational purposes. Conventional Navier-Stokes simulations (commonly referred to as CFD simulations) are computationally very expensive since they require a supercomputer with runtimes of several weeks. A Parabolized Navier-Stokes (PNS) method is developed and implemented in this study. The developed PNS method requires less stringent approximations as ...
Making Music More Open: Copyright, Conservation And Access Issues, 2015 Oxford Systematics
Making Music More Open: Copyright, Conservation And Access Issues, Marcus R. Wigan
Marcus R Wigan
Marcus Wigan, Institute for Social Research, Swinburne University of Technology and Monash University Sir Zelman Cowan School of Music
Making music more open: copyright, conservation and access issues
IP rights around music have come under increasing stress in the digital age. The demands of consumers for cheap, perpetual access to any and all types of music has clashed with copyright owners and artists seeking to preserve or grow existing revenues. But this emphasis on commercial rights in music has led to one area being neglected. That is music and performance of historical or niche value, especially that held by museums ...
Autonomous Cars And Driverless Lethal Autonomy, 2015 Independent Researcher
Autonomous Cars And Driverless Lethal Autonomy, Nyagudi Musandu Nyagudi
Nyagudi M Nyagudi
“The small picture” - make an advanced autonomous /driverless car. Lots of algorithms, sensors, computers and other gizmos. Now get it to take you to work, park itself and seamlessly run your family errands around the city. Taking grandma to the doctor for the medical check-up, getting the children from school, etc. With Radar, Lidar and other sensors, the car steering with ease through the traffic, no driver to pay, that is another plus, fuel/energy efficiency, yet another plus. It is a bold new world and the sky is the limit. Without the resolution of “small picture” issues there is ...
Computational Characterization Of Exogenous Micrornas That Can Be Transferred Into Human Circulation, 2015 University of Nebraska-Lincoln
Computational Characterization Of Exogenous Micrornas That Can Be Transferred Into Human Circulation, Jiang Shu, Kevin Chiang, Janos Zempleni, Juan Cui
CSE Journal Articles
MicroRNAs have been long considered synthesized endogenously until very recent discoveries showing that human can absorb dietary microRNAs from animal and plant origins while the mechanism remains unknown. Compelling evidences of microRNAs from rice, milk, and honeysuckle transported to human blood and tissues have created a high volume of interests in the fundamental questions that which and how exogenous microRNAs can be transferred into human circulation and possibly exert functions in humans. Here we present an integrated genomics and computational analysis to study the potential deciding features of transportable microRNAs. Specifically, we analyzed all publicly available microRNAs, a total of ...
27-10-15 Wigan Ieee Smart Cities Guadalajara Education Workshop Presentatation, 2015 Oxford Systematics
27-10-15 Wigan Ieee Smart Cities Guadalajara Education Workshop Presentatation, Marcus R. Wigan
Marcus R Wigan
Smart Cities are driven by rapid changes in both information generation and access. These are driven initially by technology, but quickly demand adaptive governance and social science demands as a result. A strategy to address the skills required - and the associated disciplines engaged - is laid out. It includes Smart Cities educational agendas from social, technology, and investment perspectives and addresses how the core skill : swift appreciation of the contributions of different disciplines and the ability to speed up genuine adaptive interworking - can be achieved. This strategy builds upon the educational and interchange commitments made in IEEE Smart Cities agreements to ...
Virtual R&D Teams: A New Model For Product Development, 2015 University of Malasya
Virtual R&D Teams: A New Model For Product Development, Nader Ale Ebrahim
Open Access Journals
Increased global competitions have urged small and medium enterprises (SMEs) to develop new products faster. Virtual research and development (R&D) teams in SMEs can offer a solution to speed up time-to-market of new product development (NPD). However, factors that affect the effectiveness of virtual teams for NPD are still not adequately verified. This paper presents the correlations between virtual R&D team constructs and virtual team effectiveness by developing a “Virtual Research and Development Team” (ViR&DT) model. The items, which may influence the effectiveness of virtual teams, are taken from the literature. Through an online survey and by ...
Numerical Simulation Of Karst Soil Cave Evolution, 2015 Institute of Karst Geology and Key Laboratory of karst collapse prevention
Numerical Simulation Of Karst Soil Cave Evolution, Long Jia, Yan Meng, Zhende Guan, Lipeng Liu
Sinkhole Conference 2015
This study is focused on numerical simulation of the formation and development of karst soil caves related to cover-collapse sinkholes. The so-called ‘karst soil cave’ refers to the caves formed in the soil layers above bedrock of sinkhole regions. Because the soil caves are formed and developed under groundwater seepage, studying groundwater level changes can help understand soil cave development and collapse. Based on the improved Terzaghi loosening pressure theory and using excess pore water pressure, two kinds of critical groundwater level decline are discussed. The first, denoted as ∆H0, is the critical groundwater level decline related to soil cave ...
Big Data Proteogenomics And High Performance Computing: Challenges And Opportunities, 2015 Western Michigan University
Big Data Proteogenomics And High Performance Computing: Challenges And Opportunities, Fahad Saeed
Parallel Computing and Data Science Lab Technical Reports
Proteogenomics is an emerging field of systems biology research at the intersection of proteomics and genomics. Two high-throughput technologies, Mass Spectrometry (MS) for proteomics and Next Generation Sequencing (NGS) machines for genomics are required to conduct proteogenomics studies. Independently both MS and NGS technologies are inflicted with data deluge which creates problems of storage, transfer, analysis and visualization. Integrating these big data sets (NGS+MS) for proteogenomics studies compounds all of the associated computational problems. Existing sequential algorithms for these proteogenomics datasets analysis are inadequate for big data and high performance computing (HPC) solutions are almost non-existent. The purpose of ...
Charging Level And Deposition Of Droplets In Electrostatic Painting, 2015 The University of Western Ontario
Charging Level And Deposition Of Droplets In Electrostatic Painting, Husam Osman
Electronic Thesis and Dissertation Repository
The process of electrostatic painting has become a very important method of coating in a wide range of industrial applications including those used in the automobile industry. The general principle of spray coating is to deposit liquid droplets or solid powder particles on coated targets having various shapes. The electrostatic coating process consists of three main stages: droplet formation and charging, transportation and deposition. The complication of this process is caused by various factors, such as the physical properties of the material to be used, the appropriate electrical and mechanical conditions and the target surface to be coated, which affects ...
A Hybrid Approach To General Information Extraction, 2015 Cal Poly San Luis Obispo
A Hybrid Approach To General Information Extraction, Marie Belen Grap
Master's Theses and Project Reports
Information Extraction (IE) is the process of analyzing documents and identifying desired pieces of information within them. Many IE systems have been developed over the last couple of decades, but there is still room for improvement as IE remains an open problem for researchers. This work discusses the development of a hybrid IE system that attempts to combine the strengths of rule-based and statistical IE systems while avoiding their unique pitfalls in order to achieve high performance for any type of information on any type of document. Test results show that this system operates competitively in cases where target information ...
Stochastic Stability And Uncertainty Quantification Of Ring-Based Vibratory Gyroscopes, 2015 The University of Western Ontario
Stochastic Stability And Uncertainty Quantification Of Ring-Based Vibratory Gyroscopes, Soroush Arghavan
Electronic Thesis and Dissertation Repository
Effect of stochastic fluctuations in angular velocity on the stability of two DOF ring-type MEMS gyroscopes is investigated. The governing Stochastic Differential Equations are discretized using the higher-order Milstein scheme in order to numerically predict the system response assuming the fluctuations to be white noise. Simulations via Euler scheme as well as a measure of Largest Lyapunov Exponents are employed for validation purposes due to lack of similar analytical or experimental data. The stability investigation predicts that the threshold fluctuation intensity increases nonlinearly with damping ratio. Under typical gyroscope operating conditions, nominal input angular velocity magnitude and mass mismatch appear ...
Software Metrics And Dashboard, 2015 Loyola University Chicago
Software Metrics And Dashboard, Shilpika Shilpika, George K. Thiruvathukal, Saulo Aguiar, Konstantin Läufer, Nicholas J. Hayward
Computer Science: Faculty Publications and Other Works
Software metrics are a critical tool which provide continuous insight to products and processes and help build reliable software in mission critical environments. Using software metrics we can perform calculations that help assess the effectiveness of the underlying software or process. The two types of metrics relevant to our work is complexity metrics and in-process metrics. Complexity metrics tend to focus on intrinsic code properties like code complexity. In-process metrics focus on a higher-level view of software quality, measuring information that can provide insight into the underlying software development process.
Our aim is to develop and evaluate a metrics dashboard ...
Optimization Of Blalock-Taussig Shunt And Anastomotic Geometry For Vascular Access Fistula Using A Genetic Algorithm, 2015 Washington University in St. Louis
Optimization Of Blalock-Taussig Shunt And Anastomotic Geometry For Vascular Access Fistula Using A Genetic Algorithm, Guangyu Bao
Engineering and Applied Science Theses & Dissertations
Blalock-Taussig (BT) shunts are used for defects that affect the flow of blood from the right ventricle, through the pulmonary artery, and to the lungs. Arteriovenous (AV) fistula is one type of vascular access which is a surgically created vein used to remove and return blood during hemodialysis. Plastic grafts used in the above two reconstructions may result in areas of non-physiologic flow in the grafts leading to risk of stenosis (blocked area) and thrombosis, which is the single major cause for access morbidity. The focus of this thesis is to study BT shunts and anastomoses models using Computational Fluid ...
Interactive Computer Aided Design Of Electrochemical Systems, 2015 Purdue University
Interactive Computer Aided Design Of Electrochemical Systems, Lucas D. Robinson Mr., R. Edwin García Dr., Aniruddha Jana Mr.
The Summer Undergraduate Research Fellowship (SURF) Symposium
The most popular and widely used rechargeable battery numerical model, the dualfoil, was developed in fortran by John Newman and coworkers1-3, and enables the user to describe the time-dependent electrochemical transport of lithium and charge, through the application of concentrated solution theory in porous media. Such a model has enabled the design of many advanced lithium-ion batteries for hybrid and plug-in electric vehicles that can operate under high current densities. Historically, however, the dualfoil and other subsequently derived models are cumbersome and unwieldy when used, and offer limited flexibility regarding parameter variability, integration into more sophisticated numerical descriptions, coupling to ...
Tetrahedral Mesh Optimization And Generation Via Topological Transformations And Gradient Based Node Perturbation, 2015 University of Tennessee at Chattanooga
Tetrahedral Mesh Optimization And Generation Via Topological Transformations And Gradient Based Node Perturbation, Christopher B. Hilbert
Masters Theses and Doctoral Dissertations
A general tetrahedral mesh optimization scheme utilizing both topological changes (i.e. flips) and gradient-based vertex optimization (i.e. smoothing) is demonstrated. This scheme is used in the optimization of tetrahedral meshes created by third-party software as well as a grid generation methodology created for this work. The particular algorithms involved are explained in detail including, an explication of the primary optimization metric, weighted condition number. In addition, a thorough literature review regarding tetrahedral mesh generation is given.
From Mpi To Openshmem: Porting Lammps, 2015 University of Tennessee - Knoxville
From Mpi To Openshmem: Porting Lammps, Chunyan Tang
This work details the opportunities and challenges of porting a petascale-capable, MPI-based application LAMMPS to OpenSHMEM. We investigate the major programming challenges stemming from the differences in communication semantics, address space organization, and synchronization operations between the two pro- gramming models. This work provides several approaches to solve those challenges for representative communication patterns in LAMMPS, e.g., by utilizing group synchronization, peer’s buffer status tracking, double buffer strategy and unpacked direct transfer of data. The performance of LAMMPS is evaluated on the Titan HPC system at ORNL. The OpenSHMEM implementations are compared with MPI version in terms of ...
Data Security And Privacy In Smart Grid, 2015 University of Tennessee - Knoxville
Data Security And Privacy In Smart Grid, Yue Tong
This dissertation explores novel data security and privacy problems in the emerging smart grid.
The need for data security and privacy spans the whole life cycle of the data in the smart grid, across the phases of data acquisition, local processing and archiving, collaborative processing, and finally sharing and archiving. The first two phases happen in the private domains of an individual utility company, where data are collected from the power system and processed at the local facilities. When data are being acquired and processed in the private domain, data security is the most critical concern. The key question is ...
A Parallel Algorithm For Compression Of Big Next-Generation Sequencing Datasets, 2015 Western Michigan University
A Parallel Algorithm For Compression Of Big Next-Generation Sequencing Datasets, Sandino N. Vargas Perez, Fahad Saeed
Parallel Computing and Data Science Lab Technical Reports
With the advent of high-throughput next-generation sequencing (NGS) techniques, the amount of data being generated represents challenges including storage, analysis and transport of huge datasets. One solution to storage and transmission of data is compression using specialized compression algorithms. However, these specialized algorithms suffer from poor scalability with increasing size of the datasets and best available solutions can take hours to compress gigabytes of data. In this paper we introduce paraDSRC, a parallel implementation of DSRC algorithm using a message passing model that presents reduction of the compression time complexity by a factor of O(1/p ). Our experimental results ...
Computational Fluid Dynamics Study Of Balloon System Tethered To A Stratosail, 2015 National University of Signapore
Computational Fluid Dynamics Study Of Balloon System Tethered To A Stratosail, Jayakanth Loganathan, Kian-Meng Lim, Heow Pueh Lee, Boo Cheong Khoo
2015 Academic High Altitude Conference
In this paper, we present a numerical study of a stratospheric balloon system tethered to a passive device, known as the Stratosail, for station-keeping operation. For scientific applications, stratospheric balloons that operate at altitudes between 15 and 20 km will need to maintain station over a fixed point above the earth for a prescribed period of time. This is a challenging problem due to the limitation of payloads and lack of an energy source. The present study uses computational fluid dynamics (CFD) simulations to analyze the drift velocity of such a balloon-Stratosail system under typical wind conditions in the stratosphere ...
Cooperative 3-D Map Generation Using Multiple Uavs, 2015 University of Connecticut - Storrs
Cooperative 3-D Map Generation Using Multiple Uavs, Andrew Erik Lawson
University Scholar Projects
This report aims to demonstrate the feasibility of building a global 3-D map from multiple UAV robots in a GPS-denied, indoor environment. Presented are the design of each robot and the reasoning behind choosing its hardware and software components, the process in which a single robot obtains a individual 3-D map entirely onboard, and lastly how the mapping concept is extended to multiple robotic agents to form a global 3-D map using a centralized server. In the latter section, this report focuses on two algorithms, Online Mapping and Map Fusion, developed to facilitate the cooperative approach. A limited selection of ...