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Articles 61 - 76 of 76
Full-Text Articles in Computer Engineering
Current-Voltage Characteristics Of Tasi2/Si And Mos Devices Using Labview, Prasant Tangirala
Current-Voltage Characteristics Of Tasi2/Si And Mos Devices Using Labview, Prasant Tangirala
Theses
Analyses of current-voltage (LV) characteristics of Schottky Barrier Diodes (Tantalum Suicide) and Metal Oxide Semiconductor (MOS) Devices, using LabVIEWTM, has been presented here. LabVIEWTMTM, a graphical program development application, has been used to program a computer-driven Keithley Source Measure Unit (SMU) for device characterization. The SMU, which can be used as a Source Voltage - Measure Current as well as Source Current - Measure Voltage instrument, is used in the Source Voltage -Measure Current mode in this study. A General Purpose Interface Bus (GPIB) IEEE 488.2 has been used to interface the SMU with LabVIEWTM …
Development Of A Demanufacturing System Modeling And Simulation Tool, Jingjing Hu
Development Of A Demanufacturing System Modeling And Simulation Tool, Jingjing Hu
Theses
This thesis develops a demanufacturing system modeling and simulation tool as an interface between simulation methods and demanufacturers. This tool can mimic the behavior of demanufacturing facility and obtain penetrable understanding of the system. By this modeling tool, one can intuitively analyze the behavior of a system and improve the operational efficiency. Detailed designs on the simulation tool including user interface, logic, and user view are presented in this thesis. The initial prototype version of the system modeling and simulation tool has been completed with fourteen modules in the developed template. Each object in the template refers to a specific …
A Method Of Tracking Eye Motion For Human-Computer Interface, Martin Maranski
A Method Of Tracking Eye Motion For Human-Computer Interface, Martin Maranski
Theses
It would be of value to create another device for interfacing with a computer besides the commonly used handheld devices; one option is to determine where the user is looking on the screen. The major obstacle to overcome in this task is to be able to reliably track the motion of the iris and pupil in the eye. A method to do this is revealed here, using a variation of the Rough transform to detect circular patterns in a close shot of the eye. The algorithm was developed in Matlab and analyzed over a series of 20 sets of 6 …
An Algorithm For Fast Route Lookup And Update, Pinar Altin Yilmaz
An Algorithm For Fast Route Lookup And Update, Pinar Altin Yilmaz
Theses
Increase in routing table sizes, number of updates, traffic, speed of links and migration to IPv6 have made IP address lookup, based on longest prefix matching, a major bottleneck for high performance routers. Several schemes are evaluated and compared based on complexity analysis and simulation results. A trie based scheme, called Linked List Cascade Addressable Trie (LLCAT) is presented. The strength of LLCAT comes from the fact that it is easy to be implemented in hardware, and also routing table update operations are performed incrementally requiring very few memory operations guaranteed for worst case to satisfy requirements of dynamic routing …
Mutual Interference Investigation Of Cebus And X-10 Powerline Signaling, Sajid Pallithotungal
Mutual Interference Investigation Of Cebus And X-10 Powerline Signaling, Sajid Pallithotungal
Theses
Powerline control signaling using CEBus has great potential towards inexpensive home automation. CEBus transmits at 10 kBps using spread spectrum in the 100-400 kHz band while X-l0 sends 60 Bps using bursts of 120 kHz carrier on the power line. However, these two signals may destructively interfere when present simultaneously. X-10 is narrow band and interferes with the CEBus spread spectrum signal. This thesis looks into the mutual interference patterns of Power Line CEBus communication in the presence of X-l0 module signaling and visa versa. The investigation encompasses a series of tests and measurements on a Power Line CEBus-X10 test …
Multi-Lifecycle Assessment Design Tools And Software Development, Ji Jin
Multi-Lifecycle Assessment Design Tools And Software Development, Ji Jin
Theses
This thesis introduces the concept of Multi-lifecycles and a Multi-lifecycle assessment (MLCA) methodology for evaluating the energy consumption and environmental emissions of a product. MLCA quantifies materials, energy, and environmental burdens associated with end-of-life options, as well as obtains the value of returning parts and materials back to use, through demanufacturing, reengineering and remanufacturing.
A Multi-lifecycle Assessment software is developed as a tool to implement MLCA methodologies. By this software, one can practice a full life-cycle analysis on a product, or compare the environmental impacts of different products. Detailed designs on MLCA software including the databases, user interfaces, and algorithm …
Design Of Components For A Generic Microprocessor Architecture, Pradnesh R. Mohare
Design Of Components For A Generic Microprocessor Architecture, Pradnesh R. Mohare
Theses
The objective of this thesis was to develop a generic microprocessor design that can be adapted to many of the existing 16 bit microprocessors. Common features of various microprocessors were used to develop the design of many generic components which can then be used to design the required microprocessors instead of custom-designing each one of them separately. The components were designed using a CISC based micro-programmed design approach as that was more suitable in terms of design and verification time for generic implementation. The generic parts designed include the Register File for temporary data storage, the Effective Address Calculator that …
Design, Implementation, And Evaluation Of A Shared-Memory Parellel Processing System (Smpps), Eric H. Staub
Design, Implementation, And Evaluation Of A Shared-Memory Parellel Processing System (Smpps), Eric H. Staub
Theses
As technology reaches its limits of improvements in microprocessor processing speeds, scientists and engineers have to find viable solutions to meet ever-increasing demands for faster processing speed. One such solution is parallel processing. No longer does one have to wait on sequential operations. A specific task can be split in sub-tasks that can run simultaneously, thus reducing the overall execution time of the task.
The design and implementation of these systems is crucial to the effectiveness of parallel systems. A dual-processor SMPPS was designed and implemented in order to demonstrate how multiple processors are a viable solution to increasing the …
Analysis And Applications Of Ftir Systems, Gunjan Navin Doshi
Analysis And Applications Of Ftir Systems, Gunjan Navin Doshi
Theses
Fourier Transform Infrared Spectroscopy (FTIR) is a dynamical instrumental technique used in industry for measuring high quality infrared spectra. Over the last 25 years, the increased demand for having an efficient real-time quantitative measurement technique has led to extensive research and development in the field of FTIR Spectroscopy. Through the use of FTIR, sensitivity has increased, size of the smallest sample that can be analyzed has been reduced, and the number of new applications has exploded. In this thesis, an attempt is made to study the principles, theory, instrumentation and applications of FTIR Spectrometry. We survey the working of spectrometer, …
Improving The Run Time Of The Decomposition Algorithm For Fault Tolerant Clos Interconnection Networks Through Swap Re-Ordering, Andrea Laura Mcmakin
Improving The Run Time Of The Decomposition Algorithm For Fault Tolerant Clos Interconnection Networks Through Swap Re-Ordering, Andrea Laura Mcmakin
Theses
Clos interconnection networks, used in data networks and computing systems, can contain extra switches to be used in faulty conditions. The speed of such fault tolerant Clos interconnection networks is improved through the use these switches in no-fault situations. The network can be represented by a matrix, which is then decomposed using an algorithm, and the switch settings are thus assigned.
The original decomposition algorithm consisted of four element swaps in the following order: wild swap, simple swap, next simple swap, and successive swap. However, by re-arranging these swaps with the simple swap first, followed by the next simple and …
Design, Fabrication And Characterization Of The Infrastructure For A Two Part Non Volatile Ram, Suma Madapur
Design, Fabrication And Characterization Of The Infrastructure For A Two Part Non Volatile Ram, Suma Madapur
Theses
The present trend is to be able to develop cheaper and more convenient methods to design and fabricate non volatile RAM that will lead to an alteration of the computer architecture itself This will help replace the DRAM, which the computers currently have in their memory. The proposed NVRAM is designed to overcome the common difficulties faced with the use of ferroelectric materials used in the fabrication of NVRAM. The new idea essentially consists of fabricating the circuitry component separately and the substrate component separately and binding the two with the help of a conducting material. Electrical properties such as …
Evaluating The Communications Capabilities Of The Generalized Hypercube Interconnection Network, Sanjay Krishnamurthy
Evaluating The Communications Capabilities Of The Generalized Hypercube Interconnection Network, Sanjay Krishnamurthy
Theses
This thesis presents results of evaluating the communications capabilities of the generalized hypercube interconnection network. The generalized hypercube has outstanding topological properties, but it has not been implemented in a large scale because of its very high wiring complexity. For this reason, this network has not been studied extensively in the past. However, recent and expected technological advancements will soon render this network viable for massively parallel systems.
We first present implementations of randomized many-to-all broadcasting and multicasting on generalized hypercubes, using as the basis the one-to-all broadcast algorithm presented in [3]. We test the proposed implementations under realistic communication …
Design And Implementation Of Generalized Adaptive Neural Filters, Chun Yip Tam
Design And Implementation Of Generalized Adaptive Neural Filters, Chun Yip Tam
Theses
Generalized Adaptive Neural Filters (GANF) are a class of adaptive non-linear filters. This thesis presents a hardware implementation of GANF. Two designs are considered: the single neuron implementation and the multi-neuron implementation. The GANF design includes the window generator, threshold decomposer, training and filtering unit. The designs are verified through a logic design/simulation tool, Logic Works.
Design Of A Communications Interface For A Very High Performance Computer, Jesse Boyd Zydallis
Design Of A Communications Interface For A Very High Performance Computer, Jesse Boyd Zydallis
Theses
PetaFLOPS computing power is the newest goal of Federal Government agencies, in the increasingly active supercomputer field. To obtain this performance goal by the year 2007, sophisticated parallel processing designs are required. To effectively create network interfaces/routers for interprocessor communications in such computer systems, it requires optimal hardware and software codesigns.
An interface is presented for the NJIT New Millennium Computing Point Design, a system that targets 100 TeraFLOPS performance by the year 2005. The router handles store-and-forward switching and wormhole routing for the system.
Modeling And Numerical Analysis Of Beam Matrix Plasma Display System, Jingwu Zhang
Modeling And Numerical Analysis Of Beam Matrix Plasma Display System, Jingwu Zhang
Theses
This research investigates a new display device - Beam Matrix Plasma Display Panel (BM PDP). The scan of a PDP in such a system is accomplished through two electrical-beam guns instead of semiconductor switches.
The BM-PDP eliminates the expensive semiconductor switches in the current plasma display device systems. Its drive circuit has only three parts: electron beam guns, resistors and capacitors. During the operation of BM PDP, first a switch cell is turned on by a selection gun (X gun). Then another electron gun (Y gun) emits electrons onto column electrodes and capacitors. When the voltage over the corresponding luminous …
Automatic Surface Mount Solder Joints Inspection, Zhu Liu
Automatic Surface Mount Solder Joints Inspection, Zhu Liu
Theses
This thesis reports the research results on automatic inspection of solder joints on printed circuit boards. The previous work on this subject has been advanced significantly in the following three aspects. With the support of AT&T Bell Lab, the most updated surface mount solder joints are inspected in this work instead of larger simulation solder joints or traditional through hole solder joints in the previous work. A small set of features is extracted for surface mount solder joints in both infrared and visual light inspection. A new image processing software named Khoros has been applied to improve the quality of …