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Articles 61 - 88 of 88
Full-Text Articles in Architectural Engineering
The Riai Standard Form Of Contract 2017 Version:An Overview, Tony Cunningham
The Riai Standard Form Of Contract 2017 Version:An Overview, Tony Cunningham
Other Resources
The RIAI ‘Yellow’ and ‘Blue’ Forms of Contracts have been recently amended and published as the 2017 edition. This paper supersedes an earlier paper of the same title and reviews and synopsises the provisions of the 2017 RIAI ‘Yellow’ Form of Contract and identifies the principle changes that have been made to the superseded 2012 edition.
The Bridge Newsletter Spring 2018, Missouri University Of Science And Technology
The Bridge Newsletter Spring 2018, Missouri University Of Science And Technology
The Bridge Newsletter
-Steel Bridge Design Team takes first at ASCE student conference
-Sneed helps lead study abroad course
-ACML gifts
-Schonberg named Fulbright Chair
Analyses Of Crowd-Sourced Sound Levels Of Restaurants And Bars In New York City, Gregory S. Farber, Lily M. Wang
Analyses Of Crowd-Sourced Sound Levels Of Restaurants And Bars In New York City, Gregory S. Farber, Lily M. Wang
Durham School of Architectural Engineering and Construction: Faculty Publications
For several decades, there has been a significant need to better educate the public about noise pollution. A small number of small-scale studies have focused on the sound levels of restaurants and their impact on health and hearing. There have also been an increasing number of media articles stating that eating and drinking venues are getting increasingly loud making it more difficult for people to connect with others in conversation. This study reports on an exploratory large-scale noise survey of sound levels of 2,376 restaurants and bars in New York City using a novel smart-phone application and categorized them based …
Numerical Analysis And Case Study On The Mitigation Of Mining Damage To The Floor Of No. 5 Coal Seam Of Taiyuan Group By Grouting, A. Li, Y. Liu, L. Mou, K. Li
Numerical Analysis And Case Study On The Mitigation Of Mining Damage To The Floor Of No. 5 Coal Seam Of Taiyuan Group By Grouting, A. Li, Y. Liu, L. Mou, K. Li
Faculty & Staff Scholarship
Based on the geological condition of panel 22507 of the no. 5 coal seam at Dongjiahe coal mine, numerical analysis of the stability and water permeability of the floor aquiclude before and after grouting was conducted using Rock Failure Process Analysis (F-RFPA2D). The dynamic development, extension, and distribution of the cracks in the aquiclude are discussed. It is shown that grouting can increase the effective thickness of the aquiclude, reduce the floor damage depth, and control the floor water inrush path, thus effectively improving the overall strength and water blocking capability of the aquiclude. These numerical study results were applied …
Center For Farm And Food System Entrepreneurship, Community Design Center
Center For Farm And Food System Entrepreneurship, Community Design Center
Community Design Center Project Reports
The average age of the American farmer is 58. Since communities are not reproducing the next generation of farmers, universities are establishing training centers to model new concepts and technologies in farming. The Farmers Training Center is both an immersive program in the rhythms of farm life and a public facility for hosting gatherings that celebrate value-added food products. Part of the University of Arkansas’ farm operations near campus, the center is the public face of agriculture where farmers and the public meet. Student farmers learn by farming, from organic vegetable production in fields and greenhouses, to machine repair, marketing, …
New Beginnings Homeless Transition Village, Community Design Center
New Beginnings Homeless Transition Village, Community Design Center
Community Design Center Project Reports
More than three million Americans experience homelessness annually. Emergency shelter capacity is limited while local governments are unable to provide even temporary housing. Informal housing involving interim self-help solutions are now popular adaptive actions for obtaining shelter despite nonconformance with city codes. Unfortunately, most informal solutions have resulted in objectionable tent cities and squatter campgrounds where the local response has simply been to move the problem around. Our homeless transition village plan prototypes a shelter-first solution using a kit-of-parts that can be replicated in other communities. Village design reconciles key gaps between informal building practices and formal sector regulations, creating …
Willow Heights Livability Improvement Plan, Community Design Center
Willow Heights Livability Improvement Plan, Community Design Center
Community Design Center Project Reports
Willow Heights is a 43-year old public housing complex owned by the Fayetteville Housing Authority (FHA) within the federal public housing portfolio administered by the Department of Housing and Urban Development (HUD). The school’s design center was commissioned by a local foundation to study an alternative to the FHA’s plan to sell the downtown Willow Heights complex to a developer of high-income housing, necessitating relocation of low-income residents to another complex outside of downtown. Using equity as a driver of decision making, the studio introduced scenario planning to organize reluctant stakeholders in considering transformations to the five-acre complex.
2018 Scholarly Productivity Report, Missouri University Of Science And Technology
2018 Scholarly Productivity Report, Missouri University Of Science And Technology
Civil, Architectural and Environmental Engineering Scholarly Productivity Reports
No abstract provided.
Ua1c2/1 Academic Athletic Performance Center Photos, Wku Archives
Ua1c2/1 Academic Athletic Performance Center Photos, Wku Archives
WKU Archives Collection Inventories
Images of the Academic Athletic Performance Center also called Diddle Arena.
Ua1c6/6 Dedications Photos, Wku Archives
Ua1c6/6 Dedications Photos, Wku Archives
WKU Archives Collection Inventories
Images of dedications and groundbreakings.
Partitioning Of Pcbs From Air To Clothing Materials In A Danish Apartment, Glenn Morrison, H. V. Andersen, L. Gunnarsen, D. Varol, E. Uhde, B. Kolarik
Partitioning Of Pcbs From Air To Clothing Materials In A Danish Apartment, Glenn Morrison, H. V. Andersen, L. Gunnarsen, D. Varol, E. Uhde, B. Kolarik
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
Polychlorinated biphenyl (PCB) contamination of buildings continues to pose an exposure threat, even decades after their application in the form of calks and other building materials. In this research, we investigate the ability of clothing to sorb PCBs from contaminated air and thereby influence exposure. The equilibrium concentration of PCB-28 and PCB-52 was quantified for nine used clothing fabrics exposed for 56 days to air in a Danish apartment contaminated with PCBs. Fabric materials included pure materials such as cotton and polyester, or blends of polyester, cotton, viscose/rayon, and/or elastane. Air concentrations were fairly stable over the experimental period, with …
City Of Faith Vertical File Finding Aid, Holy Spirit Research Center, Oral Roberts University
City Of Faith Vertical File Finding Aid, Holy Spirit Research Center, Oral Roberts University
City of Faith
A finding aid for the City of Faith file in the Holy Spirit Vertical File located in the Holy Spirit Research Center at Oral Roberts University.
Numerical Simulation Of Fault Impacts For Commercial Walk-In Freezers, Alireza Behfar, David P. Yuill
Numerical Simulation Of Fault Impacts For Commercial Walk-In Freezers, Alireza Behfar, David P. Yuill
Durham School of Architectural Engineering and Construction: Faculty Publications
Refrigeration systems can undergo many faults that could negatively affect their operation and performance. This paper describes a modeling process to simulate the fault impacts on the operation of a commercial walk-in freezer using semi-empirical models. These models often require less modeling effort than full forward models and could be used in scenarios where detailed information is missing, such as in field-measured systems. An important characteristic of a typical walk-in refrigeration system is the existence of a liquid-line receiver after the condenser, which significantly changes the behavior of the cycle, in comparison to a receiver-less system. Component models described in …
Simultaneous Electrical And Mechanical Resonance Drive For Large Signal Amplification Of Micro Resonators, M. H. Hasan, Fadi M. Alsaleem, N. Jaber, M. A. A. Hafiz, M. I. Younis
Simultaneous Electrical And Mechanical Resonance Drive For Large Signal Amplification Of Micro Resonators, M. H. Hasan, Fadi M. Alsaleem, N. Jaber, M. A. A. Hafiz, M. I. Younis
Durham School of Architectural Engineering and Construction: Faculty Publications
Achieving large signal-noise ratio using low levels of excitation signal is key requirement for practical applications of micro and nano electromechanical resonators. In this work, we introduce the double electromechanical resonance drive concept to achieve an order-of-magnitude dynamic signal amplification in micro resonators. The concept relies on simultaneously activating the micro-resonator mechanical and electrical resonance frequencies. We report an input voltage amplification up to 15 times for a micro-resonator when its electrical resonance is tuned to match the mechanical resonance that leads to dynamic signal amplification in air (Quality factor enhancement). Furthermore, using a multi-frequency excitation technique, input voltage and …
Impact Of Owners’ Early Decisions On Project Performance And Dispute Occurrence In Public Highway Projects, Sogand Hasanzadeh, Behzad Esmaeili, Ghada M. Gad, Douglas D. Gransberg
Impact Of Owners’ Early Decisions On Project Performance And Dispute Occurrence In Public Highway Projects, Sogand Hasanzadeh, Behzad Esmaeili, Ghada M. Gad, Douglas D. Gransberg
Durham School of Architectural Engineering and Construction: Faculty Publications
Disputes are common in the construction industry and lead to unnecessary cost and schedule overruns in projects. It is commonly believed that owners’ early decisions regarding the selection of delivery methods, procurement methods, and contract types impact the frequency and severity of project disputes; however, no previous study has empirically tested this hypothesis, particularly in highway public projects. Therefore, this study empirically investigated the impact of owners’ early decisions regarding project organization (i.e., delivery methods, procurement, and contract types) on performance measures (e.g., cost and schedule growth), specifically dispute performance metrics (e.g., frequency and severity of disputes), in public highway …
Method For Radon Measurement In Residential Sewer Connections, David Yuill
Method For Radon Measurement In Residential Sewer Connections, David Yuill
Durham School of Architectural Engineering and Construction: Faculty Publications
Radon gas is the most deadly indoor air pollutant. In the US, it is responsible for over 20,000 deaths per year. Residential exposure is typically the largest portion of a person’s annual exposure, so a great deal of research has been done to understand the pathways that radon can follow to enter a house. Since radon emanates from the ground, it is present in high concentration in soil gas. Recent research on the vapor intrusion of volatile organic compounds from subsurface sources into a test house concluded that the sewer line is an important preferential pathway. Despite the potential for …
Utilizing Wearable Devices To Design Personal Thermal Comfort Model, Mostafa Rafaie, Mehari Tesfay, Fadi Alsaleem
Utilizing Wearable Devices To Design Personal Thermal Comfort Model, Mostafa Rafaie, Mehari Tesfay, Fadi Alsaleem
Durham School of Architectural Engineering and Construction: Faculty Publications
have confirmed that thermal comfort significantly depends on internal personal parameters such as metabolic rate, age, and health status. This is manifested as a difference in comfort levels between people residing under the same roof, and hence no general comprehensive comfort model satisfying everyone. Current and newly emerging advancements in state of the art wearable technology have made it possible to continuously acquired biometric information. This work proposes to access and exploit this data to build personal thermal comfort model. Relying on various supervised machine-learning methods, a personal thermal comfort model will be produced and compared to a general model …
Localized Indoor Temperature Estimation Using Smartphone And Laptop Internal Sensors, Mostafa Rafaie, Mehari Tesfay, Fadi Alsaleem
Localized Indoor Temperature Estimation Using Smartphone And Laptop Internal Sensors, Mostafa Rafaie, Mehari Tesfay, Fadi Alsaleem
Durham School of Architectural Engineering and Construction: Faculty Publications
This paper investigates a mechanism in which indoor air temperature can be predicted using the temperature sensor on the battery and the CPU of smartphones or laptops, where data is easily accessible and ubiquitous. As a case study, several machine-learning methods were used to build models from a laptop data and the measured surrounding air temperature. The effects of the machine learning type and input feature size (by including other parameters such as CPU processing usage and battery charge percentage) on the model accuracy were investigated. The goal is to determine a set of feature combinations that can be used …
Comfort-Based Optimal Temperature Setpoint Calculation, Andrew Holthaus, Mostafa Rafaie, Fadi Alsaleem
Comfort-Based Optimal Temperature Setpoint Calculation, Andrew Holthaus, Mostafa Rafaie, Fadi Alsaleem
Durham School of Architectural Engineering and Construction: Faculty Publications
General practice in current building HVAC control is to select building temperature setpoints that comply with ASHRAE Standard 55. By meeting this standard, based on the PMV comfort model, 80% of building occupants should be satisfied with their thermal environment. However, unfortunately, this is rarely the case. One possible reason for this is the variation in occupant activity and clothing that are usually assumed default values using this standard. In this work, we present an iterative-based algorithm to solve this problem. The algorithm solves the PMV inverse model equation to determine the optimal temperature setpoint while inferring human activity level …
Sdnet2018: An Annotated Image Data Set For Non-Contact Concrete Crack Detection Using Deep Convolutional Neural Networks, Sattar Dorafshan, Robert J. Thomas, Marc Maguire
Sdnet2018: An Annotated Image Data Set For Non-Contact Concrete Crack Detection Using Deep Convolutional Neural Networks, Sattar Dorafshan, Robert J. Thomas, Marc Maguire
Durham School of Architectural Engineering and Construction: Faculty Publications
SDNET2018 is an annotated image data set for training, validation, and benchmarking of artificial intelligence based crack detection algorithms for concrete. SDNET2018 contains over 56,000 images of cracked and non-cracked concrete bridge decks, walls, and pavements. The dataset includes cracks as narrow as 0.06 mm and as wide as 25 mm. The data set also includes images with a variety of obstructions, including shadows, surface roughness, scaling, edges, holes, and background debris. SDNET2018 will be useful for the continued development of concrete crack detection algorithms based on deep convolutional neural networks (DCNNs), which are a subject of continued research in …
The Thermal Effects Of Daylighting In An Energy Efficient Home, Thomas Glenn Yarbrough Ii
The Thermal Effects Of Daylighting In An Energy Efficient Home, Thomas Glenn Yarbrough Ii
Masters Theses
"Current trends in building design and construction emphasize the use of natural daylighting to illuminate a building's interior. This study investigated the energy savings that could be obtained through the use of daylighting compared to additional heating and cooling loads attributed to the glazing required for daylighting. The study, through a combination of experimentation and computer model validation, aimed to determine energy saved from daylighting through illumination metering during a nine-month study period. Energy usage trends during this period were observed using circuit-level monitoring equipment. It was determined that, at select times of the year, energy used to account for …
Effects Of Fire On Wood Frame Construction, Jacqueline Rock, Olivia Pepe-Phelps
Effects Of Fire On Wood Frame Construction, Jacqueline Rock, Olivia Pepe-Phelps
Architectural Engineering
No abstract provided.
Evaluation The Effect Of Washing On The Heat Transfer Capacity And Air-Side Flow Resistance Of Air Cooled Condensers, Mehdi Mehrabi, David Yuill
Evaluation The Effect Of Washing On The Heat Transfer Capacity And Air-Side Flow Resistance Of Air Cooled Condensers, Mehdi Mehrabi, David Yuill
Durham School of Architectural Engineering and Construction: Faculty Publications
17th International Refrigeration and Air Conditioning Conference at Purdue, July 9-12, 2018
Infrared Thermography For Weld Inspection: Feasibility And Application, Sattar Dorafshan, Marc Maguire, William Collins
Infrared Thermography For Weld Inspection: Feasibility And Application, Sattar Dorafshan, Marc Maguire, William Collins
Durham School of Architectural Engineering and Construction: Faculty Publications
Traditional ultrasonic testing (UT) techniques have been widely used to detect surface and sub-surface defects of welds. UT inspection is a contact method which burdens the manufacturer by storing hot specimens for inspection when the material is cool. Additionally, UT is only valid for 5 mm specimens or thicker and requires a highly skilled operator to perform the inspections and interpret the signals. Infrared thermography (IRT) has the potential to be implemented for weld inspections due to its non-contact nature. In this study, the feasibility of using IRT to overcome the limitations of UT inspection is investigated to detect inclusion, …
Hvac System Remote Monitoring And Diagnosis Of Refrigerant Line Obstruction, Fadi M. Alsaleem
Hvac System Remote Monitoring And Diagnosis Of Refrigerant Line Obstruction, Fadi M. Alsaleem
Durham School of Architectural Engineering and Construction: Faculty Publications
A heating, ventilation, and air conditioning (HVAC) system of a building includes a refrigerant loop. A monitoring system for the HVAC system includes a monitoring device installed at the building. The monitoring device is configured to measure a first temperature of refrigerant in a refrigerant line located between a filter - drier of the refrigerant loop and an expansion valve of the refrigerant loop. The monitoring system includes a monitoring server, located remotely from the building. The monitoring server is con figured to receive the first temperature and, in response to the first temperature being less than a threshold, generate …
Prefab Modular Structure As A Proposed Solution For The Exponential Population Growth, Khloud Khalid Eldamshiry, Mohamed Hesham Khalil
Prefab Modular Structure As A Proposed Solution For The Exponential Population Growth, Khloud Khalid Eldamshiry, Mohamed Hesham Khalil
Architectural Engineering
Egypt is considered one of the most populated countries among Arab countries. Most of the Egyptians live in either the Nile Valley or the Nile Delta extended beside the river from Aswan in Upper Egypt to Rasheed in Lower Egypt. The multilayered housing crisis in Egypt is considered a crucial political matter. On the one hand, there is a surplus housing of high-end level having more than six million units left empty. On the other hand, needed affordable units are not available and such shortage is a problem for those who are in need for them. Therefore, it is time …
The Unlv Student Parking Crisis, Jason Kyle De Lara, Joshua Ramos, Amanuel Ketebo, Michael Murphy
The Unlv Student Parking Crisis, Jason Kyle De Lara, Joshua Ramos, Amanuel Ketebo, Michael Murphy
Math 365 Class Projects
It is often a struggle for students to find parking on the UNLV campus. Some have related it to finding a needle in a haystack. The number of students attending UNLV has steadily increased overtime. It is possible in the future there may be more students trying to find parking then there are parking stalls. If students are paying for parking permits it is expected that they have a place to park.
Building Information Modeling (Bim) Impact On Construction Performance, David D. John
Building Information Modeling (Bim) Impact On Construction Performance, David D. John
College of Graduate Studies: Theses & Dissertations
This study is designed to address the need for having a measure for Construction Performance on BIM-assisted construction projects. Through this study a new Construction Key Performance Indicator (CKPI) matrix is identified and created by the author. The CKPI could be used to assess BIM-assisted projects. Utilizing a sequential mixed methodology approach, academic and practitioner perspectives are assessed. A qualitative content analysis and quantitative descriptive analysis based on demographics are conducted to establish a better understanding of BIM and Construction Performance. The academic perspective is used to assess the relevance of BIMM and CKPI indicators, and the practitioner perspective is …