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Formal Specification Of Requirements For Analytical Redundancy-Based Fault -Tolerant Flight Control Systems, Diego Del Gobbo
Formal Specification Of Requirements For Analytical Redundancy-Based Fault -Tolerant Flight Control Systems, Diego Del Gobbo
Graduate Theses, Dissertations, and Problem Reports
Flight control systems are undergoing a rapid process of automation. The use of Fly-By-Wire digital flight control systems in commercial aviation (Airbus 320 and Boeing FBW-B777) is a clear sign of this trend. The increased automation goes in parallel with an increased complexity of flight control systems with obvious consequences on reliability and safety. Flight control systems must meet strict fault-tolerance requirements. The standard solution to achieving fault tolerance capability relies on multi-string architectures. On the other hand, multi-string architectures further increase the complexity of the system inducing a reduction of overall reliability.;In the past two decades a variety of …
Parallelization Of Ecg Template-Based Abnormality Detection, Sherry Lea Kratsas
Parallelization Of Ecg Template-Based Abnormality Detection, Sherry Lea Kratsas
Graduate Theses, Dissertations, and Problem Reports
In order to develop techniques to predict cardiac arrest, long-term study of electrocardiogram (ECG) data needs to be done to detect changes in electrical activity of diseased hearts. In the past, limitations of computing power and storage space restricted the duration of long-term studies to several days. However, with today's technological advancement, data collection can be extended to months or years. The goal of this thesis research is to evaluate several alternatives for distributing the analysis of ECG data over multiple processors. Parallel algorithms utilizing Correlation Waveform Analysis (CWA) were implemented to compare individual heartbeats and form heartbeat templates. The …
Three-Dimensional Image Reconstruction Of Skeletal Tissue From Computed Tomography, Sundareswar Bangalore Jayashekar
Three-Dimensional Image Reconstruction Of Skeletal Tissue From Computed Tomography, Sundareswar Bangalore Jayashekar
Graduate Theses, Dissertations, and Problem Reports
Edge Detection Techniques play a very important role in medical imaging. Pre-operative diagnosis of diseases such as cancer, tumors, bone fractures etc. depend on edge detection techniques to identify the malignant growths. In orthopedics, edge detection techniques are used in the reconstruction of the skeletal system from modalities such as MRI (magnetic resonance imaging) and CT (computed tomography).;In this thesis, we develop a simple process for the three dimensional image reconstruction of the human knee, starting from computed tomography scans. Designing a digital image processing technique which successfully separates the bone from the surrounding flesh and muscle tissue is the …
Approaches To Creating Anonymous Patient Database, Shijun Shen
Approaches To Creating Anonymous Patient Database, Shijun Shen
Graduate Theses, Dissertations, and Problem Reports
Health care providers, health plans and health care clearinghouses collect patient medical data derived from their normal operations every day. These patient data can greatly benefit the health care organization if data mining techniques are applied upon these data sets. However, individual identifiable patient information needs to be protected in accordance with Health Insurance Portability and Accountability Act (HIPAA), and the quality of patient data also needs to be ensured in order for data mining tasks achieve accurate results. This thesis describes a patient data transformation system which transforms patient data into high quality and anonymous patient records that is …
Mechatronics For Sophomore-Level Mechanical Engineering Students, David Thomas Morris
Mechatronics For Sophomore-Level Mechanical Engineering Students, David Thomas Morris
Graduate Theses, Dissertations, and Problem Reports
As mechanical product designs become more complex, integrating electromechanical components with embedded control circuitry, the need for engineering graduates with a diversified educational background in multidisciplinary applications has been recognized within many facets of industry. The focus of this research was to create a series of laboratory experiments and a capstone project based on a survey of literature from current educators that could be used to introduce sophomore-level mechanical engineering students to fundamentals in the field known as "mechatronics", which incorporates the traditional disciplines of mechanical, electrical and software engineering. The lab exercises utilize the Handy Board microcontroller from MIT …
Web-Enabled Cots-Supported Alternative To Interactive Electronic Technical Manual Database (Ietmdb) Specification, Dina Mahfouz Ghobashy
Web-Enabled Cots-Supported Alternative To Interactive Electronic Technical Manual Database (Ietmdb) Specification, Dina Mahfouz Ghobashy
Graduate Theses, Dissertations, and Problem Reports
An Interactive Electronic Technical Manual (IETM), is a digital package of information required for diagnosis and maintenance of complex weapon systems and, both, military and commercial equipment. The lack of interoperability within and among IETM systems has become a major challenge to the U.S. Department of Defense (DoD) IETM community. The initial phase of user-level interoperability support has been undertaken by the development of a Web-based Joint IETM Architecture (JIA). Within this architecture, there is a need to develop a standardized Web-enabled alternative to the IETM database specification. Object oriented modeling provides the conceptual foundation for assembling the Web-enabled alternative …
Assessment Of A Space Shuttle Trajectory Evaluation System (Dolilu Ii), Diwakar Chakravarthy
Assessment Of A Space Shuttle Trajectory Evaluation System (Dolilu Ii), Diwakar Chakravarthy
Graduate Theses, Dissertations, and Problem Reports
DOLILU II is a ground control system that generates space shuttle's launch trajectories, first stage guidance commands and verifies whether the generated trajectories are safe for the flight. It is a safety critical system and a high degree of confidence in its safety and reliability must be gained through assessment. We addressed three issues related to its safety and reliability assessment. We developed a reliability assessment framework for DOLILU II system. We proposed techniques to speed up test case execution and designed methodologies for the generation of input conditions needed to test the system.;We used a Bayesian statistical framework for …
Coloring Clique Hypergraphs, Hoifung Poon
Coloring Clique Hypergraphs, Hoifung Poon
Graduate Theses, Dissertations, and Problem Reports
Let G = (V, E) be a simple graph. The clique hypergraph of G, denoted as CH( G), has V as its set of vertices, and the maximal cliques as its hyperedges. Let Sk be a set of k colors. A map c : V Sk is a proper k-coloring for CH(G) if any maximal clique of G with at least two vertices receives at least two distinct colors. Let W ⊂ V, and let s ≥ 1. We say that G is (W, s)-extendible if any assignment on W with at most s colors can be extended to a …
Web-Based Workflow In Secure Collaborative Telemedicine, Vijayanand Ranganath Bharadwaj
Web-Based Workflow In Secure Collaborative Telemedicine, Vijayanand Ranganath Bharadwaj
Graduate Theses, Dissertations, and Problem Reports
Workflow involves the automation of a business process in whole or part with movement of information and tasks between parties according to a set of rules. The ubiquitous nature of the Internet and WWW prompts us to investigate how these entities can be fully exploited to improve the efficiency of any workflow process in a reliable, secure fashion.;This research effort alms to investigate the utility of the internet and specifically the WWW in providing a substrate for complex workflow and to demonstrate that workflow with a high degree of automation and ability to interface with disparate data sources can be …
Secure Telemedicine System For Home Health Care, Sridhar Vasudevan
Secure Telemedicine System For Home Health Care, Sridhar Vasudevan
Graduate Theses, Dissertations, and Problem Reports
This thesis describes a low-cost telemedicine system that provides home based patient care by linking patients with skilled nurses at the home care agency. The system employs compact vital signs sensors and a two-way real-time video conference over telephone lines. It stores the patient's medical records, still images and enforces clinical pathways during the televisits. Physicians, paramedics, and nurses can then have access to these records from anywhere, securely, through a Web browser.;This document discusses the underlying technologies, the features implemented in the prototype, and the methodologies used in developing the software. The prototype uses the Enterprise Java Bean [EJB] …
Gas Production Forecasting Using Automatic Type Curve Matching, Walter Jonathan Diazgranados
Gas Production Forecasting Using Automatic Type Curve Matching, Walter Jonathan Diazgranados
Graduate Theses, Dissertations, and Problem Reports
As the demand for natural gas has increased in the last years, also the need for forecast reliable gas recoveries. Gas type curves are one of the methods utilized to estimate future well performance. The purpose of this study is the utilization of the Aminian et al type curves to model gas well performance. Unlike other studies developed in the past, Aminian et al type curves account for important factors ignored in the derivation of the proposed theoretical solutions. Thus, the pressure dependency of gas viscosity and compressibility, as well as the pressure loss owing to non-Darcy flow, make of …
Java-Based Midi Interface For Robot Control, Gaurav Subhash Harode
Java-Based Midi Interface For Robot Control, Gaurav Subhash Harode
Graduate Theses, Dissertations, and Problem Reports
Robot offers an excellent means of utilizing high level technology to make a given manufacturing operation more profitable and competitive. Apart from manufacturing, robots are also being utilized in the areas of medicine and agriculture with great returns. Robotic applications now require multiple robots working in a coordinated manner, something similar to an orchestra. This lead to the concept of a Robotic Instrument Digital Interfacing (RIDI) system for real time coordinated control of robotic devices. It provides a novel runtime environment that supports the building and deployment of distributed robotic devices.;The objective of this research is to design and develop …
Smart Card-Enabled Security Services To Support Secure Telemedicine Applications, Monoreet Mutsuddi
Smart Card-Enabled Security Services To Support Secure Telemedicine Applications, Monoreet Mutsuddi
Graduate Theses, Dissertations, and Problem Reports
The Internet is quickly evolving into a standard and widely used mode of information transfer. Therefore internet's information transfer capabilities could be exploited by Secure Telemedicine Applications to securely transfer medical information. However the current day internet protocol stack does not provide much in terms of security for the data being transferred across it. In this thesis we explore how Cryptography along with Smart Cards can be used to implement application layer protocols, to enhance the security of data flowing across the internet in a Secure Telemedicine environment. This thesis also discusses the design and implementation of various system software …