No description available.

Thesis (Ph. D.)--University of Texas at Dallas, 1996. / Includes vita. Includes bibliographical references (leaves 92-99).

No description available.

Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1992. / Vita. Abstract. Includes bibliographical references (leaves 59-64). Also available via the Internet.

Approved for public release; distribution is unlimited / Because of the unique features of electromagnetic pulse (EMP) and Hazardous Electromagnetic Effects on Ordnance (HERO), much research and money has gone into protecting weapon systems and ordnance against it. The EMP and HERO phenomena do have a variety of differences and require differences of hardening technique to protect against it. However, they both involve radiation effects and can prematurely initiate ordnance via the electroexplosive device (EED). Protection of weapon systems and ordnance against electronic damage and upset plus EED initiation takes on more of an art form rather than science once basic principles are applied. Nevertheless by relating these two programs via the initiating temperature of the EED. they can be accurately compared with each other. Because of this observation, the two programs can be effectively combined to work jointly on ordnance hardening and protection including all forms of radiation type hazards, present and future. / http://archive.org/details/comparisonofemph00boga / Lieutenant. United States Navy

Approved for public release; distribution is unlimited / A computer model of the Coanda Refraction Jet Engine Test Cell facility was developed using the PHOENICS computer code. The PIIOENICS code was utilized to determine the steady state aerothermal characteristics of the test cell during the testing of an E404 gas turbine engine with afterburner in operation. Computer generated aerothermodynamic field variables of pressure, velocity and temperature parameters were compared to operational field test data. Observations regarding compared results as well as system behavior are presented. Additionally, recommendations of the applications of PHOENICS to future modeling projects are made. / http://archive.org/details/aerothermodynami00mara / Lieutenant, United States Navy

There is a tremendous amount of information being generated and stored every year, and its growth rate is exponential. From 2008 to 2009, the growth rate was estimated to be 62%. In 2010, the amount of generated information is expected to grow by 50% to 1.2 Zettabytes, and by 2020 this rate is expected to grow to 35 Zettabytes. By preprocessing text in programmable logic, high data processing rates could be achieved with greater power efficiency than with an equivalent software solution, leading to a smaller carbon footprint. This thesis presents an overview of the fields of Information Retrieval and Natural Language Processing, and the design and implementation of four text preprocessing modules in programmable logic: UTF–8 decoding, stop–word filtering, and stemming with both Lovins’ and Porter’s techniques. These extensively pipelined circuits were implemented in a high performance FPGA and found to sustain maximum operational frequencies of 704 MHz, data throughputs in excess of 5 Gbps and efficiencies in the range of 4.332 – 6.765 mW/Gbps and 34.66 – 108.2 uW/MHz. These circuits can be incorporated into larger systems, such as document classifiers and information extraction engines.

Thesis (Ph. D.)--University of Massachusetts Amherst, 2009. / Open access. Includes bibliographical references (p. 122-127). Print copy also available.

There is a tremendous amount of information being generated and stored every year, and its growth rate is exponential. From 2008 to 2009, the growth rate was estimated to be 62%. In 2010, the amount of generated information is expected to grow by 50% to 1.2 Zettabytes, and by 2020 this rate is expected to grow to 35 Zettabytes. By preprocessing text in programmable logic, high data processing rates could be achieved with greater power efficiency than with an equivalent software solution, leading to a smaller carbon footprint. This thesis presents an overview of the fields of Information Retrieval and Natural Language Processing, and the design and implementation of four text preprocessing modules in programmable logic: UTF–8 decoding, stop–word filtering, and stemming with both Lovins’ and Porter’s techniques. These extensively pipelined circuits were implemented in a high performance FPGA and found to sustain maximum operational frequencies of 704 MHz, data throughputs in excess of 5 Gbps and efficiencies in the range of 4.332 – 6.765 mW/Gbps and 34.66 – 108.2 uW/MHz. These circuits can be incorporated into larger systems, such as document classifiers and information extraction engines.

Thesis (Ph.D.)--University of Texas at Dallas, 2008. / Includes vita. Includes bibliographical references (leaves 153-164)