Browsing by Author "Petrova, Guergana"
Now showing items 1-20 of 22
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Lewis, Tom Goslee (2009-05-15)The current waste management strategy for spent nuclear fuel (SNF) mandated by the U.S. Congress is the disposal of high-level waste (HLW) in a geological repository at Yucca Mountain. Ongoing efforts on closed-fuel cycle ...
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Johnson, Matthew Paul (2013-04-30)Accurate knowledge of the neutron flux distribution in a nuclear reactor has many tangible benefits. Perhaps the most important are the contributions to reactor safety. Detailed knowledge allows reactor operators to identify ...
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Yang, Yong (2016-06-13)The main purpose of this work is to study continuous finite element methods for hyperbolic problems. In scalar case, it is shown that using consistent mass matrix is not compatible with the maximum principle. Moreover, we ...
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Binev, Peter; Cohen, Albert; Dahmen, Wolfgang; DeVore, Ronald; Petrova, Guergana; Wojtaszczyk, Przemyslaw (SIAM Journal on Mathematical Analysis, 2011)
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Parham, Neil A. (2010-07-14)For the Texas A&M University Nuclear Science Center reactor a fuel depletion code was created to develop real-time fuel management capability. This code package links MCNP8 and ORIGEN26 and is interfaced through a Visual ...
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Ho, Yenpo (2014-08-27)Nowadays, the trend of modern memory technology is going towards the following directions: (1) look for new nonvolatile devices; (2) keep scaling down the existing volatile devices. Although nonvolatile devices enable to ...
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Wang, Shuwen (2009-05-15)Entry-time processes are finite-state continuous-time jump processes with transition rates depending only on the two states involved in transition, the calendar time, and the most recent arrival time, which is termed as ...
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Nguyen, Hao Thanh (2013-08-22)We have investigated two greedy strategies for finding an approximation to the minimum of a convex function E, defined on a Hilbert space H. We have proved convergence rates for a modification of the orthogonal matching ...
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Manson, Josiah (2014-04-30)When drawing images onto a computer screen, the information in the scene is typically more detailed than can be displayed. Most objects, however, will not be close to the camera, so details have to be filtered out, or ...
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Miller, Karen Ann (2011-08-08)Radiation portal monitors are being deployed at border crossings throughout the world to prevent the smuggling of nuclear and radiological materials; however, a tension exists between security and the free-flow of commerce. ...
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Kumar, Akansha (2016-12-08)The optimization of a complex system involves the determination of optimum values for a set of design parameters. The optimization search happens in order to meet a specific set of objectives concerning the quantities of ...
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Zhang, Fan (2010-10-12)This dissertation is mainly focused on the analysis, design and optimization of Low-density parity-check (LDPC) codes over channels with large alphabet sets and the applications on compressed sensing (CS) and flash memories. ...
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Mincey, John Steven (2016-06-13)In this dissertation, a matched filter and coherent digitizer will be presented for pulsed Doppler radar systems. The matched filter is used to filter as much out-of-band thermal noise in the received signal as possible ...
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Al Rashdan, Ahmad Y. M. (2014-12-01)The complex and coupled behavior of variables in the currently developing Generation IV reactors and Small Modular Reactors is becoming a major incentive to seek efficient design methods. This research develops and validates ...
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Yan, Wenjin (2013-05-06)This thesis presents a novel approach for a power system to find a practical power flow solution when all the generators in the system have hit their real power output limits, such as some generator units shutting down or ...
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Lewis, Tom Goslee, III (2011-10-21)To assure nuclear power sustainability, ongoing efforts on advanced closed-fuel cycle options and adapted open cycles have led to investigations of various strategies involving utilization of Transuranic (TRU) nuclides in ...
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Johns, Jesse Merlin (2014-12-18)The Monte Carlo method for solving reactor physics problems is one of the most robust numerical techniques for analyzing a wide variety of systems in the realm of reactor engineering. Monte Carlo simulations sample on ...
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DeVore, Ronald; Petrova, Guergana; Hielsberg, Matthew; Owens, Luke; Clack, Billy; Sood, Alok (SIAM Journal on Imaging Sciences, 2013)
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Aditya Kumar, - (2012-12-04)As we migrate software to new versions of programming languages, we would like to improve the style of its design and implementation by replacing brittle idioms and abstractions with the more robust features of the language ...
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Gao, Zheming (2016-04-22)In this thesis, we suggest a new algorithm for solving convex optimization problems in Banach spaces. This algorithm is based on a greedy strategy, and it could be viewed as a nonlinear conjugate gradient type method. We ...