Digital Commons Network^™

Analysis And Transformation Of Post-Conditions, Abhinav Vasikarla

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Software engineers have been trying for years to develop a software synthesis system that can transform a formal specification model to a design model from which executable code can be generated. AFIT wide spectrum object modeling environment (AWESOME) is one result of their research. AWESOME presents a formal model as an abstract syntax tree. This model consists mainly of object class specifications. The methods in these classes are specified using pre and post-conditions. The intent of this thesis is to support the transformation of post-conditions to code statements. A post-condition is first categorized as dependent or independent relative to other …

Analytic-Holistic Thinking, Information Use, And Sensemaking During Unfolding Events, Mei-Hua Lin

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In complex domains such as commerce, military operations, transportation, and humanitarian efforts, practitioners are sometimes overwhelmed by uncertain, contradictory, and dynamic information. They must obtain, organize, interpret, and use this information often under time pressure and high stakes during sensemaking. While sensemaking is a gateway to information management, sensemaking also depends on information management; the gathering and use of information provides the raw material for sensemaking. These processes work together to help people understand complex situations but are vulnerable to cultural as well as individual variation in cognition. This study investigated individual cognitive and personality differences that may affect information …

Fpga Design Of A Hardware Efficient Pipelined Fft Processor, Ryan T. Bone

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Digital receivers involve fast Fourier transform (FFT) computations that require a large amount of arithmetic operations. The implementation of a FFT processor is one of the most challenging parts in the realization of a wideband receiver and its hardware complexity is very high. Hence, kernel function FFT processors have been proposed to meet real-time processing requirements and to reduce hardware complexity by rounding the kernel function to predetermined kernel points so as to eliminate the multipliers and use only shifters and adders or subtractors. Because of the nonlinear nature of this approximation by the rounding errors, spurious responses are generated …

Performance And Complexity Co-Evaluations Of Mpeg4-Als Compression Standard For Low-Latency Music Compression, Isaac Kevin Matthew

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In this thesis compression ratio and latency of different classical audio music tracks are analyzed with various encoder options of MPEG4ALS. Different tracks of audio music tracks are tested with MPEG4-ALS coder with different options to find the optimum values for various parameters to obtain maximum compression ratio with minimum CPU time (encoder and decoder time). Optimum frame length for which the compression ratio saturates for music audio is found out by analyzing the results when different classical music tracks are experimented with various frame lengths. Also music tracks with varying sampling rate are tested and the compression ratio and …

Poly(Arylene Ether)S With Truly Pendant Benzene Sulfonic Acid Groups, Mohamed Moustafa Abdellatif

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A series of new sulfonated poly(arylene ether)s containing one sulfonic acid group, located on a pendant phenyl sulfonyl moiety, at every repeat unit was synthesized using 3-sulfonated-3', 5'-difluorophenyl Sulfone, 4, and a variety of bisphenols. A conventional nucleophilic aromatic substitution (NAS) was utilized for the homopolymerization and copolymerization reactions. Polymerization reactions of 4 in NMP at 180 °C provided the corresponding linear sulfonated poly(arylene ether)s, s-PAEs, with number average molecular weight, M_n, ranging from 10,000 to 38,000 Daltons. All of the polymers were characterized by ¹H and ¹³C NMR spectroscopy, thermogravimetric analysis (TGA), and differential scanning …

Geologic Mapping Of The Changgo Dome In Southern Tibet Using Aster Imagery, Andrew Paul Folfas

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Within the thick TSS, south of the Indus-Tsangpo Suture, a series of granitic intrusions and gneissic domes crop out along the NHA. These culminations are common features that are seen in orogenic belts; therefore, understanding the nature and development of these features is an integral part of this study and other collisional orogenic studies. Changgo Dome is a granitic dominated feature that is characterized by the presence of two spectrally similar Tertiary granites. This zone is nearly inaccessible for ground mapping, thus it is an ideal setting for the use of satellite imagery as a cartographic medium. In a previous …

A Construct Validation Of The Neutral Objects Satisfaction Questionnaire (Nosq), Kevin J. Eschleman

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The current study is a construct validation of the Neutral Objects Satisfaction Questionnaire (NOSQ). The study includes tests of convergent and discriminant validity. Specifically, the NOSQ had more empirical overlap with affective-oriented dispositions (i.e., positive affectivity, negative affectivity, neuroticism, extraversion, trait anxiety, trait anger, trait depression, and cheerfulness) than with cognitive-oriented dispositions (i.e., need for cognition, general self-efficacy, and locus of control). In addition, the NOSQ had greater empirical overlap with the aforementioned affective-oriented dispositions than with a measure of temporal affect (i.e., mood). Correlations between the NOSQ and both job satisfaction and job cognitions were also compared, but no …

Biomechanical Evaluation Of Locked And Non-Locked Constructs Under Axial And Torsion Loading, Vinit A. Patel

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Locking compression plates are proven to be safe for use in open reduction and internal fixation (ORIF). The ORIF is a procedure performed to treat fractures. It has various combination of holes, the system provides more options for clinicians to use either locking screw or non-locking screws. This thesis investigates and determines the best construct with special locking and non-locking screws under both axial and torsion loading. Twenty femur constructs were assembled with 2 cm osteotomy gap between femur shaft and condyle, bridged with 4.5 mm - 10 holes condyle plates. Femurs were divided in to 4 groups according to …

Motion-Control System Of Bench-Top Ct Scanner, Tarpit Kaushikbhai Patel

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Computed Tomography (CT) imaging has found applications in many areas such as diagnostic visualization, quantitative estimation, and therapeutic verification. In this wide range of applications, a CT scanner that can provide the data collection schemes of both second- and third-generation data-collection geometries will be an asset for laboratory research. In this thesis project, we developed a mechanical design and constructed a dual-generation CT scanner that provides flexibility in accommodating a wide range of object sizes with minimum scan time. Using 3-D graphical design software, models of the current second-generation CT scanner and possible solutions for modification were simulated. Based on …

Exploring Team Dynamics: The Evolution Of Coordination In A Complex Command And Control Environment, Daniel H. Schwartz

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The present study explores the dynamic and emergent behavior of two teams, separately working through a synthetic task environment representing a battle management command and control domain under two levels of organizational centralization. While the manipulation of centralization had minimal effects on overall performance, evidence suggested that the need to seek authorization for actions from a central authority was a source of frustration. Both teams adapted over time, changing patterns of coordination to better meet the task demands. The results are discussed in the context of the concepts of normal accidents, high reliability organizations, and self-organization in complex organizations. Specific …

Finite Element Optimization Of Hip Implant Geometrical Parameters To Determine Safe Zones And Resist Dislocation, Himanshu K. Bhatt

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A computational study was performed using finite element analysis (FEA) of three dimensional solid hip implant models. Twelve different hip implant models were designed to investigate the performance of geometrical parameters affecting hip stability. The parameters examined were head diameter, neck diameter, head-to-neck ratio, neck angle and acetabular liner thickness. Component orientations included cup anatomical inclination and cup anteversion, which should be accounted for during total hip implant design as well as in the practice of arthroplasties. A static analysis was performed for all 12 hip designs using stainless steel 316L. von Mises stress, contact stress, contact penetration, and sliding …

Two Dimensional Localization Of Passive Uhf Rfid Tags, Bhavik Contractor

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The advent of GPS has redefined the need of a positioning system in today*#8217;s ubiquitous computing world. While GPS works satisfactorily and is quite a norm in an outdoor environment, it fails to work indoors due to the inherent complexity of an indoor environment. There is an ever increasing need to develop an indoor positioning system and a lot of research has been done to solve the problem of indoor localization. These solutions differ on the basis of cost, dependency on environment, line of sight requirements and so on.

Passive RFID (Radio Frequency Identification) tags pose an interesting solution to …

Automated Analysis Of Metacarpal Cortical Thickness In Serial Hand Radiographs, Aarti Raheja

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To understand the roles of various genes that influence skeletal bone accumulation and loss, accurate measurement of bone mineralization is needed. However, it is a challenging task to accurately assess bone growth over a person's lifetime. Traditionally, manual analysis of hand radiographs has been used to quantify bone growth, but these measurements are tedious and may be impractical for a large-scale growth study. The aim of this project was to develop a tool to automate the measurement of metacarpal cortical bone thickness in standard hand-wrist radiographs of humans aged 3 months to 70+ years that would be more accurate, precise …

Implementation Of Null Conventional Logic In Cots Fpga's, Mohamad Rajgara

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The digital world has been dominated by the growth of synchronous digital design techniques for last few decades. Traditional Boolean logic is symbolically incomplete since it has a separate control logic, time in the form of clock signal which be carefully integrated with the logic design, but with digital clock signal already in the GHz range, this integration is further complicated. One approach to address post GHz digital logic design is to use clockless or asynchronous digital design techniques. In the mid '90s Theaseus Logic Inc. proposed a method to design Asynchronous circuits using Null Convention Logic (NCL).This thesis introduces …

Item And Person Characteristics As Predictors Of Faking, Nicholas Tyler Day

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Applicants may be more motivated to fake than incumbents and may fake more on some items than others. The present study investigated both item and person characteristics as predictors of faking. At the item level, both item transparency and job-relevance were hypothesized to be associated with higher levels of faking. In contrast, item verifiability was hypothesized to be associated with lower levels of faking. At the person level, applicants were expected to have a higher prevalence of faking than incumbents. Data was taken from an existing pool of applicants (n = 507) and incumbents (n = 302) at a customer …

Regulation Of Calcium Entry Pathway In Jurkat T Cells, Petronilla A. Fruasaha

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Calcium release-activated calcium channels (CRAC) control influx of calcium in human T lymphocytes. Hour-long calcium elevations are necessary for efficient gene expression during T cell activation and proliferation. We report here that, the time course for store-operated Ca2+ entry is short-lived (3-4 min) and therefore, cannot account for the prolonged Ca2+ elevations necessary for NFAT translocation into nucleus. Previous findings strongly suggest that T cell activation is accompanied by cytosolic alkalinization. Here, we show that pH changes in Jurkat T cells following activation with mitogenic lectin, phytohemagglutinin (PHA), depends on the length of time of exposure and the concentration (potency) …

Multi-Uav Control: An Envisioned World Design Problem, Mona T. Stilson

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Predator Unmanned Aerial Vehicle assets are in high demand in the theater of operations for supporting the Global War on Terror and this demand is expected to increase. This work involved exploratory case study research into the envisioned world design problem of networked Predator multi-UAV control, as a candidate for meeting higher Predator sortie requirements without the need for a one for one increase in pilots. The concept involves the development of a potential new position for controlling multiple UAVs, called the Multi-Aircraft Manager (MAM). The goal was to analyze work requirements and develop representational models of the structure of …

On Well-Balanced Schemes For Non-Equilibrium Flow With Stiff Source Terms, W. Wang, C.-W. Shu, Helen Yee

United States National Aeronautics and Space Administration: Publications

In the modeling of unsteady reactive problems, the interaction of turbulence with finiterate chemistry introduces a wide range of space and time scales, leading to additional numerical difficulties. A main difficulty stems from the fact that most numerical algorithms used in reacting flows were originally designed to solve non-reacting fluids. As a result, spatial stiffness due to reacting source terms and turbulence/chemistry interaction are major stumbling blocks to numerical algorithm development. One of the important numerical issues is the proper numerical treatment of a system of highly coupled stiff non-linear source terms, which will result in possible spurious steady state …

The Development Of Loop-Based Cinematic Techniques In Twentieth Century Motion Pictures And Their Application In Early Digital C, David Scoma

Electronic Theses and Dissertations

For centuries, repetition in one form or another has been seen as a significant element in the artistic palette. In numerous formats of expression, duplication and looping became a significant tool utilized by artisans in a multitude of creative formats. Yet within the realm of film, the Griffith and Eisenstein models of cinematic editing techniques (as the most popular-- and near-monolithic--narrative aesthetic criteria) effectively disregarded most other approaches, including looping. Despite the evidence for the consistent use of repetition and looping in multiple ways throughout the course of cinematic history, some theorists and practitioners maintain that the influx of the …

Memories And Milestones: The Brighton Seminole Tribe Of Florida And The Digitization Of Culture, April Van Camps

Electronic Theses and Dissertations

This dissertation project discusses individual photographs of the Brighton Seminole Tribe of Florida from the early 1900s to the current period, each organized by way of their institutional significance, not their place in chronological history. Following Jean Mohr and John Berger's model in Another Way of Telling, I create a narrative for the pictures with a discussion of historical information, current data from interviews, Tribal members' stories, and my own personal story as it is tethered to the tribe. The research addresses the following questions: Can photography offer a technological means to communicate culture in a vital, organic way? Can …

Disability, Equipment Barriers And Women’S Health: Using The Ada To Provide Meaningful Access, Elizabeth Pendo

Articles

It is well-known that people with disabilities face multiple barriers to adequate health care, including lower average incomes, disproportionate poverty, and issues with insurance coverage. This article focuses on a more fundamental barrier-one that has not been discussed in the legal literature-inaccessible medical equipment and its effect on the delivery of women's health care to millions of women with disabilities .

Comment Comment Letters For Exposure Draft Entitled: Interim Financial Information. 2008, American Institute Of Certified Public Accountants. Auditing Standards Board

Exposure Drafts, Comment Letters, and Statements of Position

No abstract provided.

Examination Of An Entity's Internal Control Over Financial Reporting That Is Integrated With An Audit Of Its Financial Statements; Statement On Standards For Attestation Engagements 15, American Institute Of Certified Public Accountants. Auditing Standards Board

AICPA Professional Standards

No abstract provided.

Proposed Statement On Auditing Standards: Compliance Audits, December 24, 2008; Exposure Draft (American Institute Of Certified Public Accountants), 2008, December 24, American Institute Of Certified Public Accountants. Auditing Standards Board

Exposure Drafts, Comment Letters, and Statements of Position

No abstract provided.

Audit Documentation: Supplementary Material; Exposure Draft (American Institute Of Certified Public Accountants), 2008, April 30, American Institute Of Certified Public Accountants. Auditing Standards Board

Exposure Drafts, Comment Letters, and Statements of Position

No abstract provided.

Changes Made To The December 2007 Exposure Draft (Ed) Of International Standard On Auditing (Isa) 402 (Revised And Redrafted), Audit Considerations Relating To An Entity Using A Third Party Service Organization, And Proposed Statement On Auditing Standards (Sas) Audit Considerations Relating To An Entity Using A Service Organization; Exposure Draft (American Institute Of Certified Public Accountants), 2008, November 17, American Institute Of Certified Public Accountants. Auditing Standards Board

Exposure Drafts, Comment Letters, and Statements of Position

No abstract provided.

Aicpa Standards For Performing And Reporting On Peer Reviews, Effective For Peer Reviews Commencing On Or After January 1, 2009, American Institute Of Certified Public Accountants (Aicpa)

AICPA Professional Standards

No abstract provided.

In Defense Of The Indian Child Welfare Act In Aggravated Circumstances, C. Eric Davis

Michigan Journal of Race and Law

The Indian Child Welfare Act (ICWA) affords various protections to Indian families throughout child welfare proceedings. Among them is the duty imposed upon the state to provide rehabilitative services to families prior to the outplacement of an Indian child, or termination of parental rights. An analogous provision for non-Indians in the Adoption and Safe Families Act (ASFA) excuses rehabilitative services in "aggravated circumstances" of child abuse. The ICWA contains no such exception, and that absence has been controversial. In 2002, the Alaska Supreme Court applied ASFA's aggravated circumstances exception to the ICWA, thereby excusing services when a father severely abused …

From Pedagogical Sociology To Constitutional Adjudication: The Meaning Of Desegregation In Social Science Research And Law, Anne Richardson Oakes

Michigan Journal of Race and Law

In the United States following the case of Brown v. Board of Education (1954) federal judges with responsibility for public school desegregation but no expertise in education or schools management appointed experts from the social sciences to act as court advisors. In Boston, MA, educational sociologists helped Judge W. Arthur Garrity design a plan with educational enhancement at its heart, but the educational outcomes were marginalized by a desegregation jurisprudence conceptualized in terms of race rather than education. This Article explores the frustration of outcomes in Boston by reference to the differing conceptualizations of desegregation in law and social science. …

Airlines, New Edition As Of October 1, 2008; Audit And Accounting Guide:, American Institute Of Certified Public Accountants. Airline Guide Task Force

Industry Guides (AAGs), Risk Alerts, and Checklists

No abstract provided.