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Articles 1 - 29 of 29
Full-Text Articles in Construction Engineering and Management
The Social And Economic Costs Of Employee Misclassification In Construction [Massachusetts Report], Françoise Carré, Randall Wilson
The Social And Economic Costs Of Employee Misclassification In Construction [Massachusetts Report], Françoise Carré, Randall Wilson
Center for Social Policy Publications
With this study, a cross disciplinary team of the Center for Construction Policy Research has taken a first and significant step in documenting employee misclassification in the Massachusetts construction industry. This report documents the dimensions of misclassification and its implications for tax collection and worker compensation insurance.
Misclassification occurs when employers treat workers who would otherwise be waged or salaried employees as independent contractors (self employed). Or as one report commissioned by the U.S. Department of Labor put it, misclassification occurs “when workers (who should be) getting W-2 forms for income tax filing instead receive 1099- Miscellaneous Income forms.”
New Product Launch Decisions Under Competition And Uncertainty: A Real Options And Game-Theoretic Approach To New Product Development, James O. Ostler
New Product Launch Decisions Under Competition And Uncertainty: A Real Options And Game-Theoretic Approach To New Product Development, James O. Ostler
Theses and Dissertations
New product development is central to many firms' future success. Not only as a means to continue to maintain their piece of the market, but product development can also be a strategic means for a company to diversify, and/or alter focus to adapt to changing market conditions.
Most of the research in new product development has been on how to do it cheaper and faster than the next guy. However, early commercialization does not guarantee a position of strength in the market. Failures of EMI in CT scanners and Xerox in personal computers illustrate that being first to market does …
A Finite Element Simulation Of Temperature And Material Flow In Fricton Stir Welding, Mark J. Lasley
A Finite Element Simulation Of Temperature And Material Flow In Fricton Stir Welding, Mark J. Lasley
Theses and Dissertations
The purpose of this research was to use the Transvalor S.A. product, Forge3, to develop a finite element simulation of the friction stir welding process that improves the predictability of temperature evolution and material flow within the plunge portion of the process. Previous modeling created more heating within the billet than experimental results, probably due to the simplification of the simulation with adiabatic boundary conditions. More realistic tooling temperatures were included in this model as these affect heat evolution which is a determining factor in microcrystalline growth. These results were validated by experimental efforts using a billet and tooling instrumented …
A Method For Winding Advanced Composites Of Unconventional Shapes Using Continuous And Aligned Fibers, Abraham K. Allen
A Method For Winding Advanced Composites Of Unconventional Shapes Using Continuous And Aligned Fibers, Abraham K. Allen
Theses and Dissertations
Advanced composites are extremely strong, rigid, and light, even when compared with advanced metals. Advanced composites are replacing high-tech metals as the material of choice for aerospace engineering. However, the processes used to manufacture advanced composites generally lose some of the properties of the materials by their process limitations.
One process that keeps the theoretically awesome qualities of the composite materials in tact is filament winding. Filament wound parts are used as rocket shells, bicycle frame tubes, drive shafts, pressure vessels, etc. Filament winding is an automated process and makes reliable parts to close tolerances. If a straight tube were …
The Effectiveness Of Computer-Based Tutorials In Learning Computer-Aided Design Methods For Tool Design Procedures, Andrew Moroni Hall
The Effectiveness Of Computer-Based Tutorials In Learning Computer-Aided Design Methods For Tool Design Procedures, Andrew Moroni Hall
Theses and Dissertations
Throughout the past twenty-five years the process of designing and manufacturing a product has been revolutionized by the integration of Computer Aided Design (CAD). Although three-dimensional solid modeling, or 3-D CAD offers a better representation of the product in a virtual environment, it can be complicated and difficult to learn. Tutorials have been developed to assist manufacturing tool design student in the learning of 3-D CAD principles as they apply to tool design. This study seeks to test the effectiveness of those tutorials. A BYU tool design class was divided into two groups according to their assigned laboratory time. The …
Improved Signal Integrity In Ieee 1149.1 Boundary Scan Designs, Efren De Jesus Rangel Taboada
Improved Signal Integrity In Ieee 1149.1 Boundary Scan Designs, Efren De Jesus Rangel Taboada
Theses and Dissertations
This work is an analysis of solutions to problems derived from inherent timing and signal integrity issues in the use and application of the IEEE 1149.1 Standard at the board level in conjunction with its test system. Setup or hold times violations may occur in a boundary scan chain using IEEE 1149.1 compliant devices. A practical study of the TDI-TDO scan data path has been conducted to show where problems may arise in relationship to a particular board topology and test system. This work points to differences between passing and failing scan path tests for problem characterization. Serial data flow …
The Benefit Of Using Simulation To Improve The Implementation Of Lean Manufacturing Case Study: Quick Changeovers To Allow Level Loading Of The Assembly Line, Jack J. Mcclellan
The Benefit Of Using Simulation To Improve The Implementation Of Lean Manufacturing Case Study: Quick Changeovers To Allow Level Loading Of The Assembly Line, Jack J. Mcclellan
Theses and Dissertations
In today's competitive manufacturing environment, companies are constantly looking for ways to improve. Because of this, many companies are striving to become "lean" by implementing lean manufacturing, which is a difficult process. To aid in the implementation of lean manufacturing, simulation was used to reduce the trial-and-error period of lean manufacturing and find to optimum approach to implement the lean manufacturing principle. In this research, a case study of implementing level loading of the production schedule for BullFrog International, L.C. will be examined. To make it possible to implement level loading, the thermo-former machine at the beginning of the operations …
A Review Of Setup Practices And Procedures For Creating Ieee 802.11 Wireless Community Networks, Jae M. Theobald
A Review Of Setup Practices And Procedures For Creating Ieee 802.11 Wireless Community Networks, Jae M. Theobald
Theses and Dissertations
IEEE 802.11 wireless networking equipment has made it possible to bridge the last mile for new broadband internet service providers. Inexpensive wireless networking equipment and high gain antennas enable high speed internet delivery at a fraction of the cost of installing or upgrading land lines for cable or DSL services. Based on this research, a guide of general practices and procedures is proposed for designing, installing, and maintaining a reliable wireless community area network. Included tests have provided performance results for several types of wireless antennas (including wire grid parabolic dishes, Yagi and Vagi styles, and echo backfire), wireless bridges, …
Cm Facilities Update, Construction Management Department
Cm Facilities Update, Construction Management Department
Construction Management
No abstract provided.
The Contextable: Building And Testing An Intelligent, Context-Aware Kitchen Table, Daniel Matthew Hoopes
The Contextable: Building And Testing An Intelligent, Context-Aware Kitchen Table, Daniel Matthew Hoopes
Theses and Dissertations
The purpose of this thesis was to design and evaluate The ContexTable, a context-aware system built into a kitchen table. After establishing the current status of the field of context-aware systems and the hurdles and problems being faced, a functioning prototype system was designed and built. The prototype makes it possible to explore established, untested theory and novel solutions to problems faced in the field.
Ground Vibration Associated With Pipe Bursting, Alan Atalah, Paul Hadala, Ray Sterling
Ground Vibration Associated With Pipe Bursting, Alan Atalah, Paul Hadala, Ray Sterling
Construction Management Faculty Publications
Pipe bursting is a trenchless pipe replacement technique that offers advantages of low cost, reduced surface disturbance, and the ability to replace an old pipe with a new pipe of equal or larger diameter and capacity. Concerns about the use of the method have centered principally on the ground movements and vibrations produced by the technique - particularly when existing pipe is being replaced by a larger diameter pipe- and also on any damage experienced by the replacement pipe as it is being pulled into the ground. These concerns motivated the Trenchless Technology Center (TTC) to conduct a research project …
Preparing Cost Engineers For Today's Construction Industry Challenges, Kenneth Robson, Douglas D. Gransberg
Preparing Cost Engineers For Today's Construction Industry Challenges, Kenneth Robson, Douglas D. Gransberg
Douglas D. Gransberg
Today's cost engineer must be comfortable working in the world of performance criteria rather than yesterday's legalistic prescriptive specifications. This requires a better understanding of the owner's requirements and a more responsive business approach. While these skills are certainly being acquired on the job by today's practicing cost engineers, it is incumbent upon university construction education programs to adjust the curriculum and ensure that entry-level cost engineers arc entering the industry with the educational background to quickly assimilate into this new, faster-paced environment. Thus, the purpose of this article is to describe how the University of Oklahoma's Construction Science program …
Neural Networks For Estimating The Productivity Of Brick Works And Plastering Works In Egypt, Mohamed Aly Masoud
Neural Networks For Estimating The Productivity Of Brick Works And Plastering Works In Egypt, Mohamed Aly Masoud
Archived Theses and Dissertations
Neural networks have proven apparent success in solving a wide variety of problems. Various engineering applications in particular were studied using these powerful tools.
The Neural network resembles the function of the human brain. A training
process has to be applied first in order that the network acquires knowledge through learning. Then the network can generalize predicted solutions based on the a mount and accuracy of the training data. The target of this research is to develop two neural networks that can predict the productivity of two common construction-finishing activities, which are brick and plaster works. In order to adequately …
Recycled Concrete Properties And Feasibility, Mourad Nabil Shenouda
Recycled Concrete Properties And Feasibility, Mourad Nabil Shenouda
Archived Theses and Dissertations
As conventional good quality aggregates are becoming scarce in some zones in Egypt and many areas worldwide, and as environmental concerns are raised on dumping old and fresh concrete in landfills, recycled concrete has been receiving increased interest worldwide for its potential environmental, economic and technical merits. In fact, many countries have adopted such concrete in their codes and the majority of their old concrete is being recycled. An attempt is being made to trigger factors and means that enhance the economic feasibility of recycled concrete. The overall goal of this work is to pinpoint strength and deficiencies in this …
Enabling The Re-Engineering Of Material Purchasing In The Construction Industry By The Effective Use Of Information Technology, Alan V. Hore, Roger West
Enabling The Re-Engineering Of Material Purchasing In The Construction Industry By The Effective Use Of Information Technology, Alan V. Hore, Roger West
Conference papers
The current methods of ordering, delivering and invoicing of materials in the construction industry is enormously inefficient, with vast quantities of paperwork, duplication of effort, scanning, re-keying and resolving mismatches between invoices, delivery dockets and purchase orders. This paper sets out the results of a successful 2005 pilot project which achieved a three-way electronic match of the purchase order, delivery note and supplier invoice information. The paper goes on to describe the opportunities and challenges of introducing such a system in the Irish construction industry
3d Engineering With Prototyping, Jerome Casey, David Copperwhite, Barry Duignan
3d Engineering With Prototyping, Jerome Casey, David Copperwhite, Barry Duignan
Books/Book Chapters
No abstract provided.
A Proposal For Re-Engineering The Procurement Of Building Materials By Effective Use Of Ict, Alan V. Hore, Roger West
A Proposal For Re-Engineering The Procurement Of Building Materials By Effective Use Of Ict, Alan V. Hore, Roger West
Conference papers
This paper seeks to establish the case for re-engineering the procurement of materials in the Irish construction industry. The authors make their observations from witnessing, first-hand, the operation of a purchasing function in a large contracting organisation in the Republic of Ireland. The authors identify the core problems that exist in the current mainly paper-based process and present a strong case for the re-engineering of the process by the adoption of a fully integrated Information Communications Technology (ICT) solution
Understanding Manufacturing Energy Use Through Statistical Analysis, J. Kelly Kissock, John Seryak
Understanding Manufacturing Energy Use Through Statistical Analysis, J. Kelly Kissock, John Seryak
Mechanical and Aerospace Engineering Faculty Publications
Energy in manufacturing facilities is used for direct production of goods, space conditioning, and general facility support such as lighting. This paper presents a methodology for statistically analyzing plant energy use in terms of these major end uses. The methodology uses as few as 60 data points that are relatively easy for most plants to obtain. Multivariable change-point models of electricity and natural gas use as functions of outdoor air temperature and production data are then developed. The statistical models can be used to predict energy use for energy budgeting, measure savings, determine cost structures, and diagnostic purposes. Moreover, in …
Rationalising The Construction Materials Purchasing Process, Alan V. Hore
Rationalising The Construction Materials Purchasing Process, Alan V. Hore
Conference papers
This paper is concerned with the process used in locating and removing inefficiency in the construction materials purchasing process. In the first part, a case study is presented showing the build-up of costs involved in purchasing materials. Potential for substantial savings is revealed. The second part of the paper gives a status report on a rationalisation pilot project currently being undertaken by the Construction Information Technology Alliance (CITA). This project aims to show how greater effectiveness and efficiency can be applied to the administration of the construction materials purchasing process by the application of information technology already used widely in …