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Full-Text Articles in Engineering

Cross-Disciplinary Approaches For Developing Serious Games In Higher Education: Frameworks For Food Safety And Environmental Health Education, Pauline Rooney, K.C. O'Rourke, Greg Burke, Brian Mac Namee, Claudia Igbrude Jan 2009

Cross-Disciplinary Approaches For Developing Serious Games In Higher Education: Frameworks For Food Safety And Environmental Health Education, Pauline Rooney, K.C. O'Rourke, Greg Burke, Brian Mac Namee, Claudia Igbrude

Conference papers

While some educators have adopted commercial off the-shelf games for use in the classroom, such games may not always meet the individual requirements of lecturers whose courses are tied to specific learning utcomes. An alternative is to capitalise on in-house expertise in Higher Education and create serious games through cross-disciplinary team projects. This paper outlines such a project within one Higher Education institution. It describes synergies created across disciplines as a result of the collaboration on game design and implementation. It looks at tensions generated between the pedagogical requirements (of lecturers), entertainment objectives (of games designers) and technical excellence (sought …

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Characterization Of Serial Links At 5.5gbps On Fr4 Backplanes, Vittorio Ricchiuti, Antonio Orlandi, James L. Drewniak, Francesco De Paulis Sep 2008

Characterization Of Serial Links At 5.5gbps On Fr4 Backplanes, Vittorio Ricchiuti, Antonio Orlandi, James L. Drewniak, Francesco De Paulis

Electrical and Computer Engineering Faculty Research & Creative Works

Nowdays the fast and increased demand for bandwidth in the telecommunication world translates into the design of complex boards exchanging data at high bit rate in reduced design cycle. Sometimes it is impossible to spent time in setting pre-layout simulations, because they are not compatible with the design time schedule. In this scenario it is better to design the boards using experience and then make simulations in conjunction with measurements, using customized numerical tools which don't need complex models.

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High-Level, Product Type-Specific Programmatic Operations For Streamlining Associative Computer-Aided Design, Nathan W. Scott Aug 2008

High-Level, Product Type-Specific Programmatic Operations For Streamlining Associative Computer-Aided Design, Nathan W. Scott

Theses and Dissertations

Research in the field of Computer Aided Design (CAD) has long focused on reducing the time and effort required of engineers to define three dimensional digital product models. Parametric, feature-based modeling with inter-part associativity allows complex assembly designs to be defined and re-defined while maintaining the vital part-to-part interface relationships. The top-down modeling method which uses assembly level control structures to drive child level geometry has proved valuable in maintaining these interfaces. Creating robust parametric models like these, however, is very time consuming especially since there can be hundreds of features and thousands of mathematical expressions to create. Even if …

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Optimization Constrained Cad Framework With Iso-Performing Design Generator, Kelly Eric Bowman Aug 2008

Optimization Constrained Cad Framework With Iso-Performing Design Generator, Kelly Eric Bowman

Theses and Dissertations

Design decisions have a large impact early in the design process. Optimization methods can help engineers improve their early decision making, however, design problems are often ill-posed for optimization at this early stage. This thesis develops engineering methods to use optimization during embodiment design, despite these difficulties. One common difficulty in designing mechanical systems is in handling the effects that design changes in one subsystem have on another. This is made more difficult in early engineering design, when design information is preliminary. Increased efforts have been made to use numerical optimization methods in early engineering design – because of the …

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Differential Evolution Particle Swarm Optimization For Digital Filter Design, Bipul Luitel, Ganesh K. Venayagamoorthy Jun 2008

Differential Evolution Particle Swarm Optimization For Digital Filter Design, Bipul Luitel, Ganesh K. Venayagamoorthy

Electrical and Computer Engineering Faculty Research & Creative Works

In this paper, swarm and evolutionary algorithms have been applied for the design of digital filters. Particle swarm optimization (PSO) and differential evolution particle swarm optimization (DEPSO) have been used here for the design of linear phase finite impulse response (FIR) filters. Two different fitness functions have been studied and experimented, each having its own significance. The first study considers a fitness function based on the passband and stopband ripple, while the second study considers a fitness function based on the mean squared error between the actual and the ideal filter response. DEPSO seems to be promising tool for FIR …

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Optimization Model For National Water Master Planning: Design And Documentation, Richard C. Peralta Apr 2008

Optimization Model For National Water Master Planning: Design And Documentation, Richard C. Peralta

Civil and Environmental Engineering Faculty Publications

Physical distribution system and Balancing and Allocation and Transfer modules descriptors.

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Join The Mission, Design A Patch, Nathan Mentzer, Fay Mentzer, Krista Jones Jan 2008

Join The Mission, Design A Patch, Nathan Mentzer, Fay Mentzer, Krista Jones

Publications

The article presents a classroom activity designed for third grade and up that requires students to design their own mission patch. The activity references the patches developed and designed by the U.S. National Aeronautics & Space Administration. Moreover, the article discusses the design of the activity, the available resources, the evaluation process and interdisciplinary connections.

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Design Activity: Students Designing Their Own Video Games, Steve Shumway Jan 2008

Design Activity: Students Designing Their Own Video Games, Steve Shumway

Publications

The article presents a school activity helping students to design their own computer video games. In the past, advanced programming using Java or C++ was used to design video games. At present, there are many free, easy-to-use software programs available to help elementary-age children create their own video games. The article suggests that teachers download a free version of this software and begin the tutorial.

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Greenometer-7: A Tool To Assess The Sustainability Of A Building's Life Cylce At The Conceptual Design Phase, Muhammad Musa Mer'eb Jan 2008

Greenometer-7: A Tool To Assess The Sustainability Of A Building's Life Cylce At The Conceptual Design Phase, Muhammad Musa Mer'eb

ETD Archive

This study presents a tool that has been developed to measure and subsequently improve the sustainability performance of a building over its entire life-cycle while still at the conceptual design stage. This forecasting tool is called GREENOMETER-7. GREENOMETER-7 is a LCA tool and it evaluates the projected building at two levels: micro- and macro-assessment. The micro-assessment level provides in-depth analysis of the building products, components, and operations however, the macro-assessment level measures the sustainability performance of the building as a whole and covers areas that are not applicable at the product or component level. Both levels consist of categories and …

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Optimizing Dynamic Logic Realizations For Partial Reconfiguration Of Field Programmable Gate Arrays, Matthew Parris Jan 2008

Optimizing Dynamic Logic Realizations For Partial Reconfiguration Of Field Programmable Gate Arrays, Matthew Parris

Electronic Theses and Dissertations

Many digital logic applications can take advantage of the reconfiguration capability of Field Programmable Gate Arrays (FPGAs) to dynamically patch design flaws, recover from faults, or time-multiplex between functions. Partial reconfiguration is the process by which a user modifies one or more modules residing on the FPGA device independently of the others. Partial Reconfiguration reduces the granularity of reconfiguration to be a set of columns or rectangular region of the device. Decreasing the granularity of reconfiguration results in reduced configuration filesizes and, thus, reduced configuration times. When compared to one bitstream of a non-partial reconfiguration implementation, smaller modules resulting in …

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Bio-Surfaces And Geometric References For A Standardized Biomechanical Design Methodology For Mass Customization, Kimberly A. Jensen Dec 2007

Bio-Surfaces And Geometric References For A Standardized Biomechanical Design Methodology For Mass Customization, Kimberly A. Jensen

Theses and Dissertations

This dissertation presents a method for the design of customizable products that interface with the human body. The method presented involves first, a consistent method of capturing and representing the human model so that the model can be used with CAx tools and solid modeling techniques. Second, it provides a design methodology based on feature structure planning and assembly modeling that provides a consistent structure to the design process so that it can be reused and parameterized. Third, a strategy for identifying parametric variables that are referenced to the human body is introduced. The core of this method is the …

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Resilient Modulus Of Compacted Crushed Stone Aggregate Bases, Tommy C. Hopkins, Tony L. Beckham, Charlie Sun Nov 2007

Resilient Modulus Of Compacted Crushed Stone Aggregate Bases, Tommy C. Hopkins, Tony L. Beckham, Charlie Sun

Kentucky Transportation Center Research Report

In recent years, the American Association of State Highway Transportation Officials (AASHTO) has recommended the use of resilient modulus for characterizing highway materials for pavement design. This recommendation evolved as result of a trend in pavement design of using mechanistic models. Although much progress has been made in recent years in developing mathematical, mechanistic pavement design models, results obtained from those models are only as good as the material parameters used in the models. Resilient modulus of aggregate bases is an important parameter in the mechanistic models. The main goal of this study was to establish a simple and efficient …

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Wideband Printed Monopole Design Using A Genetic Algorithm, Matthias John, Max Ammann Sep 2007

Wideband Printed Monopole Design Using A Genetic Algorithm, Matthias John, Max Ammann

Articles

A method for the design and optimisation of wide-band printed planar monopoles using a genetic algorithm is presented. This novel technique employs overlapping sub-patches which ensures electrical contact in such constellations where two sub-patches are touching only at the corner, hence re-ducing losses. The method was usd optimisation of wide-band printed planar monopoles using a genetic algorithm is presented. This novel technique employs overlapping sub-patches which ensures electrical contact in such constellations where two sub-patches are touching only at the corner, hence re-ducing losses. The method was used to design a wideband monopole antenna with application in higher cellular, WLAN …

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Buckling-Restrained Braced Frame Connection Design And Testing, Bradly B. Coy Jul 2007

Buckling-Restrained Braced Frame Connection Design And Testing, Bradly B. Coy

Theses and Dissertations

As typically designed, the beam-column-brace connections of buckling-restrained braced steel frames have undesirable failure modes that compromise the integrity and performance of the frames and are costly to repair. To decrease the time and resources needed to repair the frames following an earthquake, a new connection design was developed that attempts to confine yielding to replaceable frame components. The design incorporates a gap in the beam beyond the edge of the beam-gusset weld that acts as a hinge and reduces moment forces transferred to the connection; it is bridged by splice plates that are bolted to the beam top flanges. …

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Hydrodynamic Aspects And Correlations For The Design Of Draft-Tube Conical Spouted Beds, H. Altzibar, S. Alvarez, M.J. San José, R. Aguado, J. Bilbao, Martin Olazar May 2007

Hydrodynamic Aspects And Correlations For The Design Of Draft-Tube Conical Spouted Beds, H. Altzibar, S. Alvarez, M.J. San José, R. Aguado, J. Bilbao, Martin Olazar

The 12th International Conference on Fluidization - New Horizons in Fluidization Engineering

A study has been carried out on the hydrodynamics of conical spouted beds with draft tube. Correlations have been proposed for calculating minimum spouting velocity, operating pressure drop and peak pressure drop as functions of dimensionless module that take into account geometric factors, particle characteristics and operating conditions.

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Design And Evaluation Of An Open Combination Traffic/Bicycle Bridge Railing System, Jason A. Hascall, John R. Rohde, Dean L. Sicking, Karla A. Polivka, Ronald K. Faller, James C. Holloway M.S.C.E., E.I.T. Feb 2007

Design And Evaluation Of An Open Combination Traffic/Bicycle Bridge Railing System, Jason A. Hascall, John R. Rohde, Dean L. Sicking, Karla A. Polivka, Ronald K. Faller, James C. Holloway M.S.C.E., E.I.T.

Nebraska Department of Transportation: Research Reports

No abstract provided.

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A Scientific Foundation Of Collaborative Engineering, S. C.-Y. Lu, W. Elmaraghy, G. Schuh, R. Wilhelm Jan 2007

A Scientific Foundation Of Collaborative Engineering, S. C.-Y. Lu, W. Elmaraghy, G. Schuh, R. Wilhelm

Department of Mechanical and Materials Engineering: Faculty Publications

Collaborative engineering is the practical application of collaboration sciences to the engineering domain. In today’s highly connected technology-driven economy, the production industry must rely on the best practices of collaborative engineering to stay competitive when designing, manufacturing, and operating complex machines, processes, and systems on a global scale. Despite its importance, collaborative engineering is currently more of a practiced art than a scientific discipline. A better understanding of how engineers should collaborate with all stakeholders to accomplish complex tasks that fulfill our increasing social responsibilities is a grand challenge. However, because we currently lack well-defined sciences of human collaboration, we …

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Social Network Enhanced Digital City Management And Innovation Success: A Prototype Design, Bih-Ru Lea, Wen-Bin Yu, Prashanth Kannan Jan 2007

Social Network Enhanced Digital City Management And Innovation Success: A Prototype Design, Bih-Ru Lea, Wen-Bin Yu, Prashanth Kannan

Journal of International Technology and Information Management

Innovation is the process by which knowledge is transformed into products and services which in turn fuels economic development to create wealth and generates improvements in the standard of living. With the advance of technology, social networks that play a fundamental role as a medium for the spread of information, ideas, and influence among its members have taken a form of digital city to offer a range of online services, including access to social environments, community services, and e-commerce to its infohabitants. This study investigates how social network theories can be used to design and manage a web-based digital city …

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Structuring Emperical Methods For Reuse And Efficiency In Product Development Processes, Marshall Edwin Bare Dec 2006

Structuring Emperical Methods For Reuse And Efficiency In Product Development Processes, Marshall Edwin Bare

Theses and Dissertations

Product development requires that engineers have the ability to predict product performance. When product performance involves complex physics and natural phenomena, mathematical models are often insufficient to provide accurate predictions. Engineering companies compensate for this deficiency by testing prototypes to obtain empirical data that can be used in place of predictive models. The purpose of this work is to provide techniques and methods for efficient use of empirical methods in product development processes. Empirical methods involve the design and creation of prototype hardware and the testing of that hardware in controlled environments. Empirical methods represent a complete product development sub-cycle …

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Windmill Documentary, Timothy David Stoltenburg Dec 2006

Windmill Documentary, Timothy David Stoltenburg

Honors Capstones

Capstone submitted as a graduation requirement for the BSU Honors Program.

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Material Selection And Design Consideration For Moisture Damage Of Asphalt Pavement, Jamilla Emi Sudo Lutif, Yong-Rak Kim Dec 2006

Material Selection And Design Consideration For Moisture Damage Of Asphalt Pavement, Jamilla Emi Sudo Lutif, Yong-Rak Kim

Nebraska Department of Transportation: Research Reports

No abstract provided.

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Mix Design For A Concrete Canoe, Ryan Thomas Christensen Dec 2006

Mix Design For A Concrete Canoe, Ryan Thomas Christensen

Undergraduate Honors Capstone Projects

Each year the American Society of Civil Engineers sponsors a concrete canoe competition. This paper details the work performed by Ryan Christensen for the 2006 concrete canoe competition. His primary focus was on formulating a concrete mix to be used for the Utah State University canoe. Basic information regarding the building and design of concrete canoes is also presented. Finally, general competition results for 2006 are presented for the Utah State University canoe team.

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An Evaluation Of Attributes And Competencies For Manufacturing Engineering Technology Graduates, Loni S. Williamson Oct 2006

An Evaluation Of Attributes And Competencies For Manufacturing Engineering Technology Graduates, Loni S. Williamson

Theses and Dissertations

The purpose of this study is to determine the required attributes and competencies required for a graduate from a manufacturing engineering technology baccalaureate program. A document called “Competencies of Manufacturing Engineering Technology Graduates” was compiled in October 2004. This document lists twelve attributes thought to be important for MET graduates: Leadership, Professionalism, Creativity and Problem Solving, Management, Materials, Processes, Quality, Systems, Design, Communication, Safety and Environmental Issues, and Global Awareness. Under each attribute is a list of five to seven competencies creating a total of seventy-three competencies for graduates of an MET baccalaureate program. This list of attributes and competencies …

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Behavior And Design Of Buried Concrete Pipes, Ece Erdogmus, Maher K. Tadros Jun 2006

Behavior And Design Of Buried Concrete Pipes, Ece Erdogmus, Maher K. Tadros

Nebraska Department of Transportation: Research Reports

No abstract provided.

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The Computerised Design Of Prestressed Cncrete Slabs, Ronan Hogan May 2006

The Computerised Design Of Prestressed Cncrete Slabs, Ronan Hogan

Masters

This thesis was aimed at the development of a finite element based software package for the analysis and design of prestressed concrete slabs. Many of the existing packages used in this area carry out a simplified two dimensional analysis of the slab which does not account for the secondary stresses set up by the presence of openings and notches in the slab. In an attempt to overcome this particular weakness, a finite element analysis package was written to help produce a more rigorous analysis of the stresses developed in prestressed concrete. The aims of the research were the examination of …

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Flexible Tools For Specifying Design Variation, Trichy Pasupathy, Xiaoping Zhao, Robert Wilhelm Apr 2006

Flexible Tools For Specifying Design Variation, Trichy Pasupathy, Xiaoping Zhao, Robert Wilhelm

Department of Mechanical and Materials Engineering: Faculty Publications

This paper describes flexible tools for specifying design variations that are based on nonuniform profile tolerance definitions. These tools specify bounds of design performance that can be used for negotiation among engineers in a collaborative design process. These specification methods allow for the capture of many different design functions that are not easily described with current tool designs. In addition, these specification methods lend themselves to efficient verification methods. Profile tolerance definitions provide the most general variation controls for complex mechanical surfaces. Common design practices and engineering standards for profile tolerances exhibit many weaknesses and limitations. We present a rationale …

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The Role Of The Architect: Changes Of The Past, Practices Of The Present, And Indications Of The Future, Chad B. Jones Mar 2006

The Role Of The Architect: Changes Of The Past, Practices Of The Present, And Indications Of The Future, Chad B. Jones

Theses and Dissertations

For centuries the architect was the master builder; the one who was responsible for both the design and the construction of a project with sufficient construction expertise to oversee the project from inception to completion. Eventually, complexity of projects required a higher level of specialization leading to the separation of the designer and the builder. Since that separation, the role of the designer, or architect, has continued to shift and evolve. In recent history, the architect has been the one selected by a building owner, at the inception of the project, as the professional who is able to assist and …

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Creativity: A Framework For The Design/Problem Solving Discourse In Technology Education, Theodore Lewis Jan 2006

Creativity: A Framework For The Design/Problem Solving Discourse In Technology Education, Theodore Lewis

Publications

Subjects for which aesthetics and creative performance are critical curricular dimensions (such as art, physical education, music, and technology education), and which are accommodative of students across the range of intelligences (Gardner, 1999) are not readily or completely captured by content standards. Therefore content knowledge in these fields that target student achievement as conventionally conceived must be complemented by treatment of more subjective and elusive goals such as the development of connoisseurship, appreciation, or creative insight. With the publication of standards for the subject (International Technology Education Association, 2000), the need for focus upon creativity in technology education has been …

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Systems Approach For Estimating Field Moisture Content, Thomas M. Petry, Yuh-Puu Han, David Newton Richardson Jan 2006

Systems Approach For Estimating Field Moisture Content, Thomas M. Petry, Yuh-Puu Han, David Newton Richardson

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This paper describes a software tool developed for estimation of the field moisture content of subgrade materials. Subgrade behavior is directly related to its moisture content. Unfortunately, some approaches of estimating field moisture content are too complex to be used in routine design. In this paper, the authors attempt to provide an approach that is easy to use. The software presented here was developed using expert system approaches. It is capable of analyzing data entered by the users, and providing estimations to meet different scenarios. The information entered by the user is first examined for its reasonableness and accuracy. Then, …

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Design And Evaluation Of Automated, Continuous Culture Techniques For Brachionus Rotundiformis, Zhengzhong Zhang Jan 2006

Design And Evaluation Of Automated, Continuous Culture Techniques For Brachionus Rotundiformis, Zhengzhong Zhang

LSU Doctoral Dissertations

A 40-L recirculating rotifer turbidostat (RRT) pilot system consisting of a rotifer reactor, biofilter, foam fractionator, feed container, harvester, and two air-lift pumps was designed to produce B. rotundiformis, a small (S-type) rotifer, that is increasingly demanded for production of small-gape marine finfish larvae. The system’s automatic monitoring (turbidity, pH, conductivity and temperature) and controlling (turbidity, pH, feeding and harvesting) were performed by a Rugid™ computer. A 4 (temperature) x 3 (salinity) study indicated that a 30oC/15 ppt treatment is the most favorable to the growth of B. rotundiformis. Under these conditions, the effect of harvest rate on rotifer system …

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