Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- 3D reconstruction (1)
- AFM (1)
- Carbon nanotube printing (1)
- Carbon nanotubes (1)
- Classical generator model (1)
-
- Color space (1)
- Compiler optimization (1)
- Control sytem security (1)
- Cyber-physical security (1)
- Data distribution (1)
- Differential-algebraic equation (1)
- Discrete time Markov renewal process (1)
- Distributed Stabilization (1)
- Distributed generation (1)
- Down-sampling (1)
- Embedded System (1)
- Fault diagnosis (1)
- Flexible electronics (1)
- GUMBOS (1)
- Geophone improvements (1)
- Geophones (1)
- HIL simulation with network link (1)
- Hacking (1)
- Heterogeneous (1)
- Hybrid color features (1)
- Illumination invariant (1)
- Inkjet printing (1)
- Load flow (1)
- Multi-agent System (1)
- Multiple view geometry (1)
Articles 1 - 15 of 15
Full-Text Articles in Engineering
Data Distribution In Hpx, Bibek Ghimire
Data Distribution In Hpx, Bibek Ghimire
LSU Master's Theses
High Performance Computation (HPC) requires a proper and efficient scheme for distribution of the computational workload across different computational nodes. The HPX (High Performance ParalleX) runtime system currently lacks a module that automates data distribution process so that the programmer does not have to manually perform data distribution. Further, there is no mechanism allowing to perform load balancing of computations. This thesis addresses that issue by designing and developing a user friendly programming interface conforming to the C++11/14 Standards and integrated with HPX which enables to specify various distribution parameters for a distributed vector. We present the three different distribution …
Exploring Invariant Hybrid Color Image Features For Face Recognition Under Illumination Variation, Jayesh Mohan
Exploring Invariant Hybrid Color Image Features For Face Recognition Under Illumination Variation, Jayesh Mohan
LSU Master's Theses
In this thesis, a novel analysis framework is presented in order to automate testing response of an image-feature descriptor algorithm for face recognition under different illumination conditions and white balance calibration over intra- and inter-color space. The experimental results on the OPFD database show that our analysis framework finds the least sensitive channel of a color space for recognizing a face under unknown illumination, unknown white balance, and the both unknown illumination and white balance conditions. The results also show the combination of channels in a color space which are best suited face recognition.
Ethical Hacking Using Penetration Testing, Bharath Kumar Koopari Roopkumar
Ethical Hacking Using Penetration Testing, Bharath Kumar Koopari Roopkumar
LSU Master's Theses
This thesis provides details of the hardware architecture and the software scripting, which are employed to demonstrate penetration testing in a laboratory setup. The architecture depicts an organizational computing asset or an environment.¬¬¬ With the increasing number of cyber-attacks throughout the world, the network security is becoming an important issue. This has motivated a large number of “ethical hackers” to indulge and develop methodologies and scripts to defend against the security attacks. As it is too onerous to maintain and monitor attacks on individual hardware and software in an organization, the demand for the new ways to manage security systems …
Efficient Dense 3d Reconstruction Using Image Pairs, Padmapriya Ravi
Efficient Dense 3d Reconstruction Using Image Pairs, Padmapriya Ravi
LSU Master's Theses
The 3D reconstruction of a scene from 2D images is an important topic in the _x000C_eld of Computer Vision due to the high demand in various applications such as gaming, animations, face recognition, parts inspections, etc. The accuracy of a 3D reconstruction is highly dependent on the accuracy of the correspondence matching between the images. For the purpose of high accuracy of 3D reconstruction system using just two images of the scene, it is important to _x000C_nd accurate correspondence between the image pairs. In this thesis, we implement an accurate 3D reconstruction system from two images of the scene at …
Low Frequency Improvements To Commercial Geophones, Brian Michael Holden
Low Frequency Improvements To Commercial Geophones, Brian Michael Holden
LSU Master's Theses
Commercial geophones have been used in the field of geology for many years. They are commonly used to detect oil and gas deposits and create three dimensional simulations of the earth. Geophones are commonly made up of a spring mounted magnetic mass moving back and forth in a wire coil to create a voltage. The response of the coil is proportional to the velocity of the ground. At various frequencies, seismic events can be measured using a geophone. However, most commercial geophones only allow accurate measurements of frequencies down to approximately five hertz. By using a feedback circuit, an attempt …
Cyber-Physical Security Strategies, Sarah Davis
Cyber-Physical Security Strategies, Sarah Davis
LSU Master's Theses
Cyber-physical security describes the protection of systems with close relationships between computational functions and physical ones and addresses the issue of vulnerability to attack through both cyber and physical avenues. This describes systems in a wide variety of functions, many crucial to the function of modern society, making their security of paramount importance. The development of secure system design and attack detection strategies for each potential avenue of attack is needed to combat malicious attacks. This thesis will provide an overview of the approaches to securing different aspect of cyber-physical systems. The cyber element can be designed to better prevent …
Graphical Models In Characterizing The Dependency Relationship In Wireless Networks And Social Networks, Phuoc Doan Huu Vu
Graphical Models In Characterizing The Dependency Relationship In Wireless Networks And Social Networks, Phuoc Doan Huu Vu
LSU Master's Theses
Semi-Markov processes have become increasingly important in probability and statistical modeling, which have found applications in traffic analysis, reliability and maintenance, survival analysis, performance evaluation, biology, DNA analysis, risk processes, insurance and finance, earthquake modeling, etc. In the first part of this thesis, our focus is on applying semi-Markov processes to modeling the on-off duty cycles of different nodes in wireless networks. More specifically, we are interested in restoration of statistics of individual occupancy patterns of specific users based on wireless RF observation traces. In particular, we present a novel approach to finding the statistics of several operations, namely down-sampling, …
A Diagnosis Feature Space For Condition Monitoring And Fault Diagnosis Of Ball Bearings, Ali Kahirdeh
A Diagnosis Feature Space For Condition Monitoring And Fault Diagnosis Of Ball Bearings, Ali Kahirdeh
LSU Master's Theses
The problem of fault diagnosis and condition monitoring of ball bearings is a multidisciplinary subject. It involves research subjects from diverse disciplines of mechanical engineering, electrical engineering and in particular signal processing. In the first step, one should identify the correct method of investigation. The methods of investigation for condition monitoring of ball bearings include acoustic emission measurements, temperature monitoring, electrical current monitoring, debris analysis and vibration signal analysis. In this thesis the vibration signal analysis is employed. Once the method of analysis is selected, then features sensitive to faults should be calculated from the signal. While some of the …
A Virtual Testbed For Embedded Systems, Shrikant Labade
A Virtual Testbed For Embedded Systems, Shrikant Labade
LSU Master's Theses
Hardware-In-the-Loop (HIL) Simulation is a simulation approach in which a hardware embedded processor is connected to the simulation computer that simulates the electrical/mechanical devices controlled by the embedded processor. By using a real-time simulation computer and special-purpose hardware for connecting to the embedded processor, this method of simulation can be very precise but is costly. We are proposing an alternative method, HIL simulation with a network link, in which the device under test (the embedded processor) communicates with the simulation computer over a network connection (in our case a serial line) instead of through special-purpose hardware. We present an abstraction …
Characterization Of Hybrid Electronic Materials Using Atomic Force Microscopy, Madhavi Divakar Rajathadripura
Characterization Of Hybrid Electronic Materials Using Atomic Force Microscopy, Madhavi Divakar Rajathadripura
LSU Master's Theses
Miniaturization in the electronics industry has been driven by advancements in material science. Recently, Hybrid Electronic Materials (HEMs) have been postulated to have unique material properties that can be used within the semiconductor industry. As such, the main focus of this research is to characterize the relevant properties of HEMs using atomic force microscopy (AFM), conductive probe atomic force microscopy (CP-AFM), and Raman spectroscopy techniques. Emphasis is placed on characterizing [R6G][TPB] GUMBOS which are a Group of Uniform Materials Based on Organic Salts. GUMBOS exhibit properties such as fluorescence and magnetic susceptibility, both of which may be important with respect …
Performance Comparison Between Patus And Pluto Compilers On Stencils, Pratik Prabhu Hanagodimath
Performance Comparison Between Patus And Pluto Compilers On Stencils, Pratik Prabhu Hanagodimath
LSU Master's Theses
Comparing the performances of Patus and Pluto compilers on stencil applications. Stencils are written in Jacobi and Seidel style of coding and performances of both these compilers are analysed based on these coding styles.
Distributed Stabilization Of Nonlinear Multi-Agent Systems, Jianming Zhou
Distributed Stabilization Of Nonlinear Multi-Agent Systems, Jianming Zhou
LSU Master's Theses
The study of multi-agent systems (MASs) is focused on systems in which many autonomous agents interact and operate within a limited communication environment. The general goal of the MAS research is to design interconnection control laws such that all the dynamic agents in the group are synchronized to a desired common trajectory by exchanging information with adjacent agents over certain constrained communication networks. Based on the review and modification of existing results concerning the consensus control of linear heterogeneous MASs in Moreau (2004) [21], Scardovi and Sepulchre (2009) [25], Wieland et al (2011) [30], and Alvergue et al. (2013) [1], …
Integration Of Network Protector Relays On Downtown Distribution Networks With Penetration Of Renewable Energy, Nigel Ramon Jordan
Integration Of Network Protector Relays On Downtown Distribution Networks With Penetration Of Renewable Energy, Nigel Ramon Jordan
LSU Master's Theses
The demand and use of renewable energy sources such as solar panels is steadily increasing in today’s world. Renewable energy sources in distribution networks effectively reduce the amount of load consumed by customers. Renewable energy sources are also a solution to many environmental concerns. However, when these sources of energy are added to downtown networks they interfere with the normal operation of the protective relays and impose challenges such as unexpected tripping of network protector relays. In this paper, the effects of network protector relay operation is studied as a function of increasing photovoltaic (PV) penetration within the secondary grid …
Carbon Nanotube Inkjet Printing For Flexible Electronics And Chemical Sensor Applications, Ryan P. Tortorich
Carbon Nanotube Inkjet Printing For Flexible Electronics And Chemical Sensor Applications, Ryan P. Tortorich
LSU Master's Theses
Carbon nanotubes (CNTs) are becoming a promising new material for use in many fields including the field of electronics. Their mechanical and electrical properties lend themselves to be used in a new generation of electronic devices, namely flexible electronics. Although many deposition methods for carbon nanotubes exist, inkjet printing offers many advantages including superior patterning ability and low-cost fabrication. Presented in this work is the use of inkjet printing in order to deposit carbon nanotubes onto a flexible transparency film. The methods for developing and printing an aqueous single-walled carbon nanotube (SWCNT) ink and an aqueous multi-walled carbon nanotube (MWCNT) …
Power System Differential Model With Application To Grid Dynamic Simulation, Boyu Wang
Power System Differential Model With Application To Grid Dynamic Simulation, Boyu Wang
LSU Master's Theses
Nonlinearity of power system is always one of the difficulties when dealing with dynamic simulation of power systems. Solving differential-algebraic equations representing power systems are difficult without losing nonlinearity, especially for large power systems. This thesis shows an alternative method to solve nonlinear dynamical power system by producing a purely differential representation of the power systems. This new representation converts the algebraic equations to differential equations in order to have an absolute differential system. By using Runge-Kutta algorithm to solve this differential system, the results of the power system simulations are compared to trapezoidal integration algorithm commonly used to solve …