Architectural Engineering Commons^™

Accumulation Of Gas-Phase Methamphetamine On Clothing, Toy Fabrics, And Skin Oil, G. Morrison, N. V. Shakila, K. Parker

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

To better understand methamphetamine exposure and risk for occupants of former residential clandestine methamphetamine laboratories, we measured the dynamic accumulation of methamphetamine in skin oil, cotton and polyester (PE) clothing, upholstery, and toy fabric (substrates) exposed to 15-30 ppb (91-183 μg/m3) neutral methamphetamine in air for up to 60 days. The average equilibrium partition coefficients at 30% RH, in units of μg of methamphetamine per gram of substrate per ppb, are 3.0 ± 0.2 for a PE baby blanket, 5.6 ± 3.5 for a PE fabric toy, 3.7 ± 0.2 for a PE shirt, 18.3 ± 8.0 for a PE/cotton …

The Effect Of Classical Order On The Seismic Behavior Of Ancient Masonry Columns, Cody M. Buckley

Durham School of Architectural Engineering and Construction: Dissertations, Theses, and Student Research

The design and erection of columns in classical Greece and Rome was a deceptively complicated task. Ancient engineers were not guided by a set of building codes, resulting in several regional design variations. The writer Vitruvius condensed these variations into three archetypes or “orders” defined by proportions based on an arbitrary “module.”

The goal of this thesis is to better understand the effect of these proportions on the seismic response of ancient columns through the use of Equivalent Lateral Force Procedure and finite element analysis software. To this end, a parametric study of linearly elastic, free-standing columns with homogeneous material …

Design Guideline To Select Systems And Strategies To Achieve Adequate Indoor Air Quality In The Mojave Desert Climate Region, Nicholas Robert Williams Inouye

UNLV Theses, Dissertations, Professional Papers, and Capstones

The awareness of climate change has led to many energy-related changes in

building behavior and space conditioning systems. Unfortunately, these changes often

led to the degradation of indoor air quality (IAQ) in residential construction. In an effort

to improve IAQ, a design guideline was developed for homeowners in the Mojave

Desert. A case study designed for the U.S. Department of Energy, Race to Zero

Student Design Competition was used to develop the design guideline. The design

guideline and compilation of codes and standards that affect both IAQ and space

conditioning shall be used in tandem by Mojave Desert homeowners to …

Thermal Energy Storage In Building Integrated Thermal Systems: A Review. Part 2. Integration As Passive System, Dervilla Niall, Sarah Mccormack, Philip Griffiths, Luisa Cabeza, Lidia Navarro, Albert Castell, Alvaro De Grazia, Maria Brown

Articles

Energy consumption trends in residential and commercial buildings show a significant increase in recent decades. One of the key points for reducing energy consumption in buildings is to decrease the energy demand. Buildings envelopes are not just a structure they also provide protection from outdoor weather conditions always taking into account the local climate. Thermal energy storage has been used and applied to the building structure by taking advantage of sensible heat storage of materials with high thermal mass. But in recent years, researchers have focused their studies on the implementation of latent heat storage materials that if well incorporated …

Chemically Stabilized Soft Clays For Road-Base Construction, Xin Kang, Gi Chun Kang, Kuang Tsung Chang, Louis Ge

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Soft clays are widely distributed in Missouri, United States. Due to their relatively low strength and high compressibility, subgrade construction in soft clays has encountered many difficulties. In recent practice, the use of fly ash (FA) along with lime to tackle soft subgrade problems has shown promising results. The effectiveness of Class C FA and lime kiln dust (LKD) in clay subgrade stabilization is examined in this research. Scanning electron microscopic (SEM) analysis, proctor compaction tests, unconfined compression tests, and resilient modulus tests were carried out on the FA and LKD modified soil mixtures. Test specimens were prepared at optimum …

Room Acoustic Effects On Speech Comprehension Of English-As-Second-Language Talkers And Listeners Versus Native-English-Speaking Talkers And Listeners, Lily M. Wang

Durham School of Architectural Engineering and Construction: Faculty Publications

Approximately 21% of the children in the United States school system speak a language other than English at home, but are being taught in English at school. English is additionally being used more and more often as a common language in international settings, even though participants at these international events again are not native English speakers. How do adverse room acoustic environments, including higher background noise levels and longer reverberation times, impact English-as-a-Second-Language (ESL) talkers and listeners versus native English-speaking talkers and listeners? This presentation focuses on two recent studies at the University of Nebraska that investigate how assorted room …

Quantification And Subjective Perception Of Varying Reflection Densities In Measured Room Impulsed Responses, Hyun Hong, Lily M. Wang

Durham School of Architectural Engineering and Construction: Faculty Publications

This project focuses on quantifying and testing the subjective perception of reflection densities, or the number of reflections per second, from different room impulse responses. The widely used room acoustic metric, reverberation time, is linked to the perceived reverberation in a room. Two different rooms having the same reverberation time, though, can have different reflection densities in their room impulse responses, and this difference in reflection density may affect how listeners perceive spatial impression in rooms. To investigate how sensitive humans are to a change of reflection density, this paper first reviews assorted parameters for quantifying reflection density from measured …

New Civil Engineering Program Criteria: The Rest Of The Story, Allen Estes, Thomas A. Lenox, Richard O. Anderson P.E.

Architectural Engineering

The American Society of Civil Engineers (ASCE) organized the Civil Engineering Program Criteria Task Committee in October 2012 whose charge is to determine if the current ABET Civil Engineering Program Criteria (CEPC) should be changed to reflect one or more of the 24 outcomes of the second edition of the Civil Engineering Body of Knowledge published in 2008. After two years of work, a proposed CEPC has been approved by the relevant ASCE committees and forwarded to ABET for approval and incorporation into accreditation criteria. A paper chronicling the committee’s efforts through a review of the literature, the committee’s methodology …

Recent Advances In Indoor Chemistry, Glenn Morrison

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Just as the chemistry creates urban smog and aerosols that influence climate change, chemistry in building air can alter the indoor environment for better or worse. This review focuses on chemical pathways initiated by oxidants that infiltrate from outdoor air and other indoor-sourced reactants and surfaces that make these environments unique chemical reactors. Ozone reacts with fragrance molecules, tobacco smoke residues, and even human skin oils to generate a host of oxidized organic compounds, secondary organic aerosols, and irritants. Nitrous acid is formed on indoor surfaces and is subsequently cleaved by even the relatively dim light indoor. This raises the …

Team Solar Sip, Patrick Fillingham, Wesley Goodson, Kenneth Li

Mechanical Engineering

No abstract provided.

Impact Of Modified Inlets On Residence Times In Baffled Tanks, Jeremy S. Carlston, Subhas Karan Venayagamoorthy

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Sharp inlets, although prevalent, tend to reduce mixing efficiency in hydraulic contact tanks by affecting fluid and scalar transport throughout the entire system. Superior inlets are often not an option because of the prohibitive cost of upgrading preexisting tanks. To remedy this, seven inexpensive yet easily implemented attachments to a sharp inlet were tested on a full-scale, baffled, prototypical contact tank. Cumulative residence time distributions of a conservative, passive scalar were obtained for each attachment to assess their performance. A study using computational fluid dynamics of the same tank with the various attachments was then performed to strengthen the empirical …

After The Solar Decathlon: Creating A New Design-Build Program, Eric Weber

Architecture Faculty Presentations

The School of Architecture’s intent was to use the Solar Decathlon as a catalyst for creating a new Design Build program. The project allowed the School to leverage support into acquiring tools & equipment essential to creating the house, and for upgrading the school’s shop facilities. The projects completed immediately following the Solar Decathlon utilized both digital fabrication and prefabrication. This is significant because the School intends to leverage both of these competencies, developed during the Solar Decathlon, in order to further the School’s craft-based pedagogy. Due to the Design-Build Studio’s development of the Solar Decathlon house, there has been …

After The Solar Decathlon: Creating A New Design-Build Program, Eric Weber

Architecture Faculty Research

In Fall 2011, the University of Nevada-Las Vegas School of Architecture’s David G. Howryla Design Build Studio began development of UNLV’s entry into the U.S. Department of Energy Solar Decathlon 2013, an international, university-based competition to design and build solar-powered housing prototypes. As a competition that requires collaboration between engineering, architecture, interior design, marketing, and communications, the Solar Decathlon is an effective tool for simulating teamwork on real projects. The School of Architecture’s intent was to use the Solar Decathlon as a catalyst for creating UNLV’s Design Build program. The project allowed the School to use support for the project …

The Design Build Experience In The Context Of A Self-Consolidating Grout Research Project, Tanner Blumenfeld, Jordan Delfino, Deryk Izuo, Matthew Josten

Architectural Engineering

The purpose of this project was to experience the design-build project delivery method in the context of a research-fueled, procedural testing investigation. Thus, this project consisted of 3 main components each of which will be addressed in this report.

The first aspect to be addressed is the research aspect. The goal of our research was to establish a chemical understanding of how replacement of cement with pozzolans in a grout mixture affects chemical processes and resulting structural characteristics within and of the grout. This research was then applied to formulation of potentially self-consolidating mix designs to be tested in the …

A Framework For Guiding The Briefing Process In Public-Private Partnerships In The Uae Construction Industry, Rauda Saeed Ali Saif Al-Saadi

Dissertations

Public-Private Partnership (PPP) is a procurement method that employs a long-term contractual arrangement between public and private sectors with the intention of developing a public facility. A PPP brief must supply information that not only particularizes the project requirements but also specifies its program, risk management, expected performance output and payment mechanism. Many challenges currently face the briefing process of PPP projects in the UAE. A uniform briefing process has not been agreed, because there is no unified tender law or PPP procurement process in the country. The main aim of this research is to develop a framework for guiding …

Planning And Design For Hurricane Protection With Sea Level Rise, Bob Ivarson

May 22, 2015: Megaproject Protective Structures for Hampton Roads

No abstract provided.

The Role Of Healing Gardens, Kalina K. Vander Poel

Student Research Symposium

The objective of this research is to observe the use patterns of a healing garden located on the oncology floor of a pediatric hospital. Use patterns recorded through behavior mapping and tracking focus on collecting data related to the type of user, length of stay, and activity. Three user groups (patient, provider, and visitor) stay an average of eight (8) minutes at Randall Children’s Hospital ranging in activity from sit and relax to actively play. Some findings are concurrent with past research while other findings are not. This research serves as an initial set of data to inform the production …

Portland State University School Of Business Administration (Sba) Renovation + Personal Comfort Investigation, Abolfazl Mekanik, Corey Griffin, Louise Foster

Student Research Symposium

This poster discusses the results of a field study about indoor thermal comfort, based on investigations in Portland State University`s School of Business (SBA) classrooms. The field study was conducted by physical parameter monitoring and questionnaires. Both field monitoring and occupant surveys were performed at the same time during the regular class period.The measurement campaign consisted of measuring the environmental parameters such as temperature (Ta), relative humidity (RH), CO₂, and sound levels. The outdoor air temperature, humidity, and sound were registered every 2 hour period during class time. The intention for this project is to investigate thermal comfort …

Ua66 Ogden College Of Science & Engineering Newsletter, Cheryl Stevens, Dean

Ogden College of Science & Engineering Publications

No abstract provided.

Food For Function Pt. 4, Ryan Desilva

Architecture Senior Theses

This thesis proposes to develop and apply sustainable energy strategies driven by the needs of yet commercial kitchens within the context of adaptive re-use of buildings. Spatializing systems within the framework of building envelopes will minimize energy usage, promote smarter holistic building design; but most importantly, teach culinary students sustainable strategies related to the growth, use and reuse of food as it pertains to the consumption and production of energy.