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Articles 2761 - 2790 of 3212
Full-Text Articles in Construction Engineering and Management
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 …
Innovative Contracting Prequalification/Selecion Model Using Analytical Hierarchy Process (Ahp), Saad J. Zidan
Innovative Contracting Prequalification/Selecion Model Using Analytical Hierarchy Process (Ahp), Saad J. Zidan
Masters Theses
Design-Build, Cost-Plus-Time, and warranty are the three innovative contracting methods that the Federal Highway Administration (FHWA) decided to fund. FHWA allowed the usage of these methods in federally funded projects if this will result in reducing time, improving quality, and saving tax payers' money. Prequalification is recognized as the best way of assuring that contractors do have the required qualifications to deliver projects successfully. Prequalification is even more critical when low-bid selection method is used with any of the innovative contracting, since incompetent contractors may get awarded for low-bids that are not based on valid assumptions.
This study presents a …
Color Management Of Desktop Input Devices: Quantitative Analysis Of Profile Quality, Xiaoying Rong
Color Management Of Desktop Input Devices: Quantitative Analysis Of Profile Quality, Xiaoying Rong
Masters Theses
This thesis investigates the color management principle and input device profiling. The input devices discussed in this thesis are flatbed scanners.
In this thesis, the human visual system, CIE L*a*b* color space, ICC profiles are reviewed, and the evaluation of profile quality is discussed. Grayscale and standard color targets of three primary suppliers are used to create profiles for a scanner. The quantitative analyses of the quality of different profiles, created by two primary commercial profiling software, are conducted according to the Delta-E of the CIE L*a*b* color space. Finally, the relationship of different color targets and profiles for desktop …
An Evaluation Of Public Construction Contracting Methods For The Public Building Sector In Oregon Using Data Envelopment Analysis, Gerald Herman Williams Jr.
An Evaluation Of Public Construction Contracting Methods For The Public Building Sector In Oregon Using Data Envelopment Analysis, Gerald Herman Williams Jr.
Dissertations and Theses
Since 1976 public agencies in Oregon have been allowed to select construction contractors using a "qualification" based competition instead of the more typical lowest responsible bid or Design-Bid-Build (DBB) basis. Since 1985, at least 136 such selections, commonly known as CM/GC for Construction Manager/General Contractor, have been made. The results of this policy have not previously been analyzed. This research compares these selection methods, seeking to answer the following questions:
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Does the CMl/GC method result in projects that differ from DBB projects regarding cost and schedule control?
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Are CMl/GC projects more efficient than DBB projects, where efficiency is defined as …
A Descriptive Performance Model Of Small, Low Cost, Diskless Beowulf Clusters, Curtis R. Nielson
A Descriptive Performance Model Of Small, Low Cost, Diskless Beowulf Clusters, Curtis R. Nielson
Theses and Dissertations
Commodity supercomputing clusters known as Beowulf clusters, have become a low cost alternative to traditional supercomputers. Beowulf clusters combine inexpensive computers and specialized software to achieve supercomputing power. The processing nodes in a diskless Beowulf cluster do not have a local hard disk unlike the nodes in most commodity clusters. Research has provided performance information for diskless clusters built with expensive, high performance equipment. Beowulf clusters use commodity off-the-shell hardware, and little information is available about their performance. This research includes the construction of several diskless Beowulf clusters. Using the NAS Parallel Benchmarks, the performance of these clusters was measured. …