Simulation For A Mems-Based
Ctrnn Ultra-Low Power
Implementation Of Human Activity
Recognition,
2021
Texas A&M University
Simulation For A Mems-Based Ctrnn Ultra-Low Power Implementation Of Human Activity Recognition, Muhammad Emad-Ud-Din, Mohammad H. Hasan, Roozbeh Jafari, Siavash Pourkamali, Fadi M. Alsaleem
Faculty Publications in Architectural Engineering
This paper presents an energy-efficient classification framework that performs human activity recognition (HAR). Typically, HAR classification tasks require a computational platform that includes a processor and memory along with sensors and their interfaces, all of which consume significant power. The presented framework employs microelectromechanical systems (MEMS) based Continuous Time Recurrent Neural Network (CTRNN) to performHAR tasks very efficiently. In a real physical implementation, we show that the MEMS-CTRNN nodes can perform computing while consuming power on a nano-watts scale compared to the micro-watts state-of-the-art hardware. We also confirm that this huge power reduction doesn’t come at the expense of reduced …
Framework To Develop Time- And
Voltage-Dependent Building Load Profiles
Using Polynomial Load Models,
2021
National Renewable Energy Laboratory
Framework To Develop Time- And Voltage-Dependent Building Load Profiles Using Polynomial Load Models, Andrew Parker, Mhd Anas Alkrch, Kevin James, Ahmad Almaghrebi, Mahmoud Alahmad
Faculty Publications in Architectural Engineering
The power consumption of buildings over the course of each minute, hour, day and season plays a major role in how this load influences the Electric Power System voltage and frequency, and vice versa. This consumption is based on the building's load component types, efficiencies, and how they consume power and react to changes in real time. Due to this complexity, standard full-building load models are typically voltage-invariant. This paper proposes a novel framework to transform these voltage-invariant building load models into fully time- and voltage-dependent load profiles using available data on the voltage sensitivity of individual load components. While …
A Case Study To Quantify Variability
In Building Load Profiles,
2021
1National Renewable Energy Laboratory
A Case Study To Quantify Variability In Building Load Profiles, Andrew Parker, Sam Moayedi, Kevin James, Dongming Peng, Mahmoud Alahmad
Faculty Publications in Architectural Engineering
Recent technology development and penetration of advanced metering infrastructure (AMI), advanced building control systems, and the internet-of-things (IoT) in the built environment are providing detailed information on building operation, performance, and user's comfort and behavior. Building owners can obtain a wide range of energy consumption details at various levels of time granularity to augment their decisions as they manage the building operation and interact with the grid. AMI data are providing a new level of detail and visibility that may enhance building services and assets in the smart grid domain and make buildings inch closer to becoming a grid-interactive energy …
Evaluating Prediction Models Of Creep And Drying Shrinkage
Of Self-Consolidating Concrete Containing Supplementary
Cementitious Materials/Fillers,
2021
University of Nebraska - Lincoln
Evaluating Prediction Models Of Creep And Drying Shrinkage Of Self-Consolidating Concrete Containing Supplementary Cementitious Materials/Fillers, Micheal Asaad, George Morcous
Faculty Publications in Architectural Engineering
Supplementary cementitious materials (SCMs) and fillers play an important role in enhancing the mechanical properties and durability of concrete. SCMs and fillers are commonly used in self-consolidating concrete (SCC) mixtures to also enhance their rheological properties. However, these additives could have significant effects on the viscoelastic properties of concrete. Existing models for predicting creep and drying shrinkage of concrete do not consider the effect of SCM/filler on the predicted values. This study evaluates existing creep and drying shrinkage models, including AASHTO LRFD, ACI209, CEB-FIP MC90-99, B3, and GL2000, for SCC mixtures with different SCMs/fillers. Forty SCC mixtures were proportioned for …
Designing Gfrp-Reinforced Tilt-Up Wall Panels,
2021
University of Nebraska-Lincoln
Designing Gfrp-Reinforced Tilt-Up Wall Panels, Fray F. Pozo-Lora, Marc Maguire
Faculty Publications in Architectural Engineering
Tilt-up construction was effectively enabled on a wide scale in 1979, when the ACI committee 551 report on Tilt-up construction was published, the Recommended Tilt-Up Wall Design, aka, the Yellow Book and the subsequent ACI-SEASC Task, aka the Green Book, and another Tilt-up design and construction manual developed by the ACI in 1988. The Tilt-up Concrete Association was created in 1986 by a group of industry professionals who had the need of an organization dedicated to the industry. ACI 551 maintains a document outlining the standard practice for contemporary Tilt-up design and construction. The ACI 551 document does not consider …
The Facility Infection Risk Estimator™: A Web Application Tool For Comparing Indoor Risk Mitigation Strategies By Estimating Airborne Transmission Risk,
2021
BranchPattern
The Facility Infection Risk Estimator™: A Web Application Tool For Comparing Indoor Risk Mitigation Strategies By Estimating Airborne Transmission Risk, Marcel Harmon, Josephine Lau
Faculty Publications in Architectural Engineering
The COVID-19 pandemic created needs for (a) estimating the existing airborne risk of infection from SARS-CoV-2 in existing facilities and new designs and (b) estimating and comparing the impacts of engineering and behavioural strategies for contextually reducing that risk. This paper presents the development of a web application to meet these needs, the Facility Infection Risk Estimator™, and its underlying Wells–Riley based model. The model specifically estimates (a) the removal efficiencies of various settling, ventilation, filtration and virus inactivation strategies and (b) the associated probability of infection, given the room physical parameters and number of individuals infected present with either …
An Investigation Of The Impact Of Covid-19 Infection Control On Visual Art Installations In Hospitals With Pediatric Patients,
2021
Stephen F Austin State University
An Investigation Of The Impact Of Covid-19 Infection Control On Visual Art Installations In Hospitals With Pediatric Patients, Shannon Kimich
Electronic Theses and Dissertations
This study investigated the impact of COVID-19 infection control on visual artwork in pediatric hospitals and hospitals caring for pediatric patients. The study involved five hospitals in three southern America states and addressed visual artwork and art installations. The researcher administered an internet-based survey to participants in job functions related to hospital administration, environmental services, and project management across the facilities and received participation from 18 respondents. Additionally, telephone interviews were conducted with three participants with the job titles project manager/analyst, child-life specialist, and environmental services director. Survey questions were designed to examine visual art programs in selected children’s hospitals …
Reasons And Remedies To The Dying Plant Walls,
2021
California Polytechnic State University, San Luis Obispo
Reasons And Remedies To The Dying Plant Walls, Hayley Q. Mcgough
Construction Management
Sustainability in construction has been increasingly popular and detrimental with the state of the planet and climate change. One of the more popular solutions is the addition of plant façades to a building, which are plants that are put on the vertical of a building. The benefits that come with plant facades include and are not limited to: Reduction of the urban heat island effect, improved air quality, local job creation, improved energy efficiency, building structure protection, noise reduction, increased biodiversity, urban agriculture. These benefits are not reaching their full potential because these plant façades keep dying creating a bigger …
Designing With Users: A Participatory Design As A Community Engagement Program In The City Zoo,
2021
Department of Architecture, Faculty of Engineering, Universitas Indonesia, Depok, Indonesia
Designing With Users: A Participatory Design As A Community Engagement Program In The City Zoo, Yulia Nurliani Lukito, Nevine R. Kusuma, Enira Arvanda, Zafira R. Ummah
ASEAN Journal of Community Engagement
This article discusses a participatory design project that aims at creating a collaborative design among architectural students, visitors, and zoo management in designing street furniture and selfie spots in city zoos. Participatory design is used in the design process to get the users’ and designers’ interpretation of the space, improve design outcomes, and increase the community awareness of their surroundings. As part of the Universitas Indonesia Community Engagement Program, the zoo design project fosters a collaborative design between the university and zoo community and supports the educational, conservational, and recreational goals of Ragunan Zoo in Jakarta. Designing street furniture and …
How Mixed Reality Will Impact Product Design,
2021
Rochester Institute of Technology
How Mixed Reality Will Impact Product Design, Wyatt Coe
Frameless
Mixed reality technology promises to merge our digital and physical worlds, unlocking new realms of experience and design. Designers must consider how this will impact future products and experiences now, to identify the most desirable solutions and applications of this technology. The capability of software to simulate reality could fundamentally shift the way we produce and experience physical and digital products, allowing for simplified physical products that support digital experiences.
Performance Evaluation Of A Prestressed Belitic Calcium
Sulfoaluminate Cement (Bcsa) Concrete Bridge Girder,
2021
Calder Richards Structural Consulting Engineers
Performance Evaluation Of A Prestressed Belitic Calcium Sulfoaluminate Cement (Bcsa) Concrete Bridge Girder, Nick Markosian, Raed Tawadrous, Mohammad Mastali, Robert J. Thomas, Marc Maguire
Faculty Publications in Architectural Engineering
Belitic calcium sulfoaluminate (BCSA) cement is a sustainable alternative to Portland cement that offers rapid setting characteristics that could accelerate throughput in precast concrete operations. BCSA cements have lower carbon footprint, embodied energy, and natural resource consumption than Portland cement. However, these benefits are not often utilized in structural members due to lack of specifications and perceived logistical challenges. This paper evaluates the performance of a full-scale precast, prestressed voided deck slab bridge girder made with BCSA cement concrete. The rapid-set properties of BCSA cement allowed the initial concrete compressive strength to reach the required 4300 psi release strength at …
Discrete Rigid Block Analysis To Assess Settlement Induced
Damage In Unreinforced Masonry Façades,
2021
University of Nebraska-Lincoln
Discrete Rigid Block Analysis To Assess Settlement Induced Damage In Unreinforced Masonry Façades, Ryan Ehresman, Nathan Taylor, Bora Pulatsu, Ece Erdogmus
Faculty Publications in Architectural Engineering
In this study, a system of discontinuous rigid blocks is employed to simulate the possible damage mechanisms in unreinforced masonry (URM) façades and load-bearing frame systems subjected to settlement using the discrete element method (DEM). First, the employed modeling strategy is validated utilizing the available experimental results presented in the literature. Once there is a good agreement between the computational models and experimental findings, a sensitivity analysis is performed to quantify the influence of the input parameters defined in the DEM-based numerical model. Finally, the proposed modeling strategy is further utilized to assess the damage pattern that may develop in …
An Architecture Of A New Story,
2021
University of Massachusetts Amherst
An Architecture Of A New Story, Nathan Y. Lumen
Masters Theses
As the world reckons with an uncertain future at the hands of global climate change and biodiversity loss, the question of how to proceed seems ever more urgent. Approaches to sustainability in design tend to focus on technological solutions to what is often presented as a technical problem. This approach overlooks the ways in which the forces that have led us to this point are born out of our cultural story of what it means to be human, what the natural world is, and what our relationship is to it. This is the story that has permitted if not encouraged …
Detroit: Revitalizing Urban Communities,
2021
University of Massachusetts Amherst
Detroit: Revitalizing Urban Communities, David N. Fite
Masters Theses
This thesis examines the relationship between architecture and planning in Detroit. The relationship between these two disciplines has reinforced gross inequality in socioeconomic status over many decades. It has been compounded by racism which planning policy and Architecture exploited during the 20th Century for private interests. This impacts the built environment at all scales. Today division is reinforced through small details such as how handrails are placed on benches, but it extends to planning metropolitan areas, and how they are divided up into city and suburb. At the scales between, both architecture and planning reinforce the segregation within their …
Physical To Virtual: A Model For Future Virtual Classroom Environments,
2021
University of Massachusetts Amherst
Physical To Virtual: A Model For Future Virtual Classroom Environments, Stephen J. Fink
Masters Theses
Virtual reality is a technology that has seen unprecedented growth since the turn of the century with increasing applications within business, entertainment, and educational applications. As virtual reality technologies continue to develops and markets expand, the world may see an increased demand for virtual classrooms: virtual environments (VEs) that students may access through immersive virtual reality technologies to receive guided instruction, conduct simulations, or perform tasks typical in a classroom setting. While many studies document how virtual reality is beneficial to educational processes, there is little discussion on how virtual environments should be architecturally designed. Thus one may hypothesize that …
Firesafe: Designing For Fire-Resilient Communities In The American West,
2021
University of Massachusetts Amherst
Firesafe: Designing For Fire-Resilient Communities In The American West, Brenden Baitch
Masters Theses
The perception that wildfires are completely preventable has caused many structures and communities to be built in locations that will inevitably experience an uncontrollable fire event, risking human lives and infrastructure. Modification of built environments into fire-adapted communities has been explored in this thesis, through multiple strategies. Central to this analysis is the idea that sustainable human developments could adopt a form of biomimicry and indigenous design informed by the adaptions of plants, animals, and native groups that endure and even thrive with regular cycles of fire. This possibility has been assessed through the scope of fire adaptation strategies available …
Revitalización Urbana Sobre El Borde Marítimo. Propuestas De Diseño Urbano Y Arquitectónico En Tumaco - Nariño,
2021
Universidad de La Salle, Bogotá
Revitalización Urbana Sobre El Borde Marítimo. Propuestas De Diseño Urbano Y Arquitectónico En Tumaco - Nariño, Brian Camilo Zuleta Londoño
Arquitectura
No abstract provided.
A Comparison Between Ultrasonic Guidedwave Leakage And
Half-Cell Potential Methods In Detection Of Corrosion In
Reinforced Concrete Decks,
2021
University of Nebraska - Lincoln
A Comparison Between Ultrasonic Guidedwave Leakage And Half-Cell Potential Methods In Detection Of Corrosion In Reinforced Concrete Decks, Ahmad Shoaib Amiri, Ece Erdogmus, Dana Richter-Egger
Faculty Publications in Architectural Engineering
This article presents the advantages and limitations of a recently developed Ultrasonic Guided Wave Leakage (UGWL) method in comparison to the well-known Half-Cell Potential (HCP) method in their ability to detect corrosion in reinforced concrete (RC) bridge decks. This research also establishes a correlation between UGWL data and chloride content in concrete RC slabs. Concrete slabs submerged in a 10% NaCl solution were monitored using both methods over a period of six months. The chloride content from the three cores (0.84, 0.55, and 0.18%) extracted from the slab after the 6-month long process all exceeded the chloride threshold values suggested …
Lessons From The Classroom – Assessing The Work Of Postgraduate Students To Support Better Hygrothermal Risk Assessment,
2021
Technological University Dublin
Lessons From The Classroom – Assessing The Work Of Postgraduate Students To Support Better Hygrothermal Risk Assessment, Joseph Little, Benat Arregi, Christian Bludau
Conference papers
The widespread adoption of transient simulation modelling tools by building design professionals to support hygrothermal risk assessment of building design specifications is a crucial component in a multi-pronged drive to reduce moisture risk in buildings. Structured upskilling is essential. Much can be learnt about the ways practitioners use such tools by reviewing the work of professional postgraduate student groups. Such review could inform the creation of a user protocol. Peer-review under the responsibility of the organizing committee of the ICMB21.
Sistema Modular Arquitectónico Como Dispositivo De Aprendizaje Para El Fortalecimiento De Las Competencias Lógico-Matemáticas En El Contexto De La Educación Rural,
2021
Universidad de La Salle, Bogotá
Sistema Modular Arquitectónico Como Dispositivo De Aprendizaje Para El Fortalecimiento De Las Competencias Lógico-Matemáticas En El Contexto De La Educación Rural, Andrés Alejandro Negrete Granados, Camilo Alejandro Arias Osorio
Arquitectura
La matemática es uno de los temas más antiguos que el ser humano ha investigado puesto que está presente en todos los hábitos de nuestra vida cotidiana, por ello es importante tenerlo presente desde las primeras etapas del desarrollo cognitivo, ya que son importantes en otros campos del conocimiento, contribuyen al desarrollo el pensamiento lógico y son un medio de comunicación universal.
