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NCSU 檢索結果共 5111 筆,本頁資料從第 13 筆到第 24 筆

The ability of bacteria to adapt to environmental stress is essential to their existence. Several responses to environmental triggers are known. Two of these, Competence and Sporulation, are widespread in the bacterial world. Competence and Sporulation are best studied in the organism Bacillus subtilis and the proteins involved in these pathways are well known. The purp....

By Patrick Daniel McLaughlin-Biochemistry-NCSU-doctoral-2006-12-21
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The problem of utilizing memory and energy efficiently is common to all computing platforms. Many studies have addressed and investigated various methods to circumvent this problem. Nevertheless, most of these studies do not scale well to real-time embedded systems where resources might be limited and particular assumptions that are valid to general computing platforms ....

By Rony Ghattas-Computer Engineering-NCSU-doctoral-2006-12-21
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Bonded metallic GRID-LOCK® structures are being adopted for a variety of aerospace applications due to their structural efficiency and damage tolerance. The development of non-destructive evaluation (NDE) methods is necessary to identify bond defects that can lead to failures in these structures. However, this task is complicated by the lack of interior access and comp....

By Pradeep Pandurangan-Mechanical Engineering-NCSU-doctoral-2006-12-21
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Urban water distribution systems (WDSs) are vulnerable to accidental and intentional contamination incidents that could result in adverse human health and safety impacts. This thesis research is part of a bigger ongoing cyberinfrastructure project. The overall goal of this project is to develop an adaptive cyberinfrastructure for threat management in urban water distrib....

By Sreerama (Sarat) Sreepathi-Computer Science-NCSU-masters-2006-12-19
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As data rates continue to increase, there is an increasing need for reliable high-density, high-speed interconnect technologies. AC Coupled Interconnect provides a solution to this problem. The characterizing of high-speed systems in an efficient manner is an important issue and BER (Bit Error Rate) is one of the most important metrics utilized to characterize high-spe....

By srivatsan parthasarathy-Electrical Engineering-NCSU-masters-2006-12-19
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The Coulomb Gauge Hamiltonian (CGH) model, a field theoretical, relativistic, many-body approach to Quantum Chromodynamics (QCD),is developed, which describes the vacuum through a Bogoliubov-Valatin transformation. This transformation also dresses the bare quarks and gluons, producing quasi-particles with constituent masses and quark and gluon condensates. This framewor....

By Ignacio Jose General-Physics-NCSU-doctoral-2006-12-19
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The purpose of this research is to numerically investigate heat transfer in liquids and liquids with carried solid particles as they flow continuously in a duct that is subjected to microwave irradiation. During this process, liquid flows in an applicator tube. When flow passes through the microwave cavity, the liquid absorbs microwave power and its temperature quickly ....

By Jianxi Zhu-Mechanical Engineering-NCSU-doctoral-2006-12-19
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The purpose of this qualitative case study is to investigate the uses of instructional representations of a novice secondary mathematics teacher and an experienced mathematics teacher in the content area of secondary geometry. Instructional representations are the tools teachers use to communicate their mathematical knowledge to students (Berenson & Nason, 2003). Class....

By Kelli Marlene Slaten-Mathematics Education-NCSU-doctoral-2006-12-19
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The purpose of this paper is to suggest an algorithm by which mica motes can organize themselves into a network to relay packets as quickly as possible under energy constraints from environmental harvesting. This problem is part of a larger project to develop a means to monitor red wolves using a mica mote network. The network has three parts: sensor motes attached to c....

By Douglas McClusky-Operations Research-NCSU-masters-2006-12-18
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Localized muscle fatigue of the low back musculature is common in workers who perform repetitive lifting and manual materials handling tasks. A significant amount of research has been performed on the basic physiology and biomechanics of localized muscle fatigue during heavy physical exertions. Far fewer studies have focused on localized muscle fatigue of gradual onset ....

By Dan Kelaher-Industrial Engineering-NCSU-doctoral-2006-12-18
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On December 12th and 13th, 2002 a deep large-amplitude tropospheric mesoscale gravity wave formed over Texas and propagated northeastward across several states. This study examines the role of the coupling of geostrophic adjustment, moist convection, and an area of shear instability from the meso- to the meso- scale as the mesoscale gravity wave is formed/maintain....

By Paul Samuel Suffern-Marine, Earth and Atmospheric Sciences-NCSU-masters-2006-12-15
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There are a number of reasons to believe that families access to economic resources will have effects on mens parental involvement in two-parent families. One view, focused on mens success as family breadwinners, posits that fathers in families that are experiencing economic insecurity will reduce their parental involvement as a means of coping with feelings of failure.....

By Jason Daniel Joyner-Sociology-NCSU-doctoral-2006-12-15
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