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Articles 241 - 270 of 1269
Full-Text Articles in Architecture
M&S Highlight: De Larrard Et Al. (1998) Fresh Concrete: A Herschel-Bulkley Material, Dimitri Feys
M&S Highlight: De Larrard Et Al. (1998) Fresh Concrete: A Herschel-Bulkley Material, Dimitri Feys
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
No abstract provided.
Spatiotemporal Analysis Of Urban Road Congestion During And Post Covid-19 Pandemic In Shanghai, China, Pengfei Xu, Weifeng Li, Xianbiao Hu, Hangbin Wu, Jian Li
Spatiotemporal Analysis Of Urban Road Congestion During And Post Covid-19 Pandemic In Shanghai, China, Pengfei Xu, Weifeng Li, Xianbiao Hu, Hangbin Wu, Jian Li
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
Coronavirus Disease 2019 (COVID-19) has become one of the most serious global health crises in decades and tremendously influence the human mobility. Many residents changed their travel behavior during and after the pandemic, especially for a certain percentage of public transport users who chose to drive their owned vehicles. Thus, urban roadway congestion has been getting worse, and the spatiotemporal congestion patterns has changed significantly. Understanding spatiotemporal heterogeneity of urban roadway congestion during and post the pandemic is essential for mobility management. In this study, an analytical framework was proposed to investigate the spatiotemporal heterogeneity of urban roadway congestion in …
Revealing Bluff-Body Aerodynamics On Low-Rise Buildings Under Tornadic Winds Using Numerical Laboratory Tornado Simulator, Ryan Honerkamp, Guirong Grace Yan, John Van De Lindt
Revealing Bluff-Body Aerodynamics On Low-Rise Buildings Under Tornadic Winds Using Numerical Laboratory Tornado Simulator, Ryan Honerkamp, Guirong Grace Yan, John Van De Lindt
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
Tornadoes result in death and property loss in communities around the world. To quantify the actions of tornadoes on civil structures, researchers have built physical laboratory tornado simulators to simulate tornadoes in the lab environment and tested building models in the simulated tornadic wind field, which is similar to wind tunnel testing when quantifying the wind effects induced by straight-line winds. Unfortunately, physical tornado simulators are much less common than straight-line wind tunnels, leading to the lack of research on bluff-body aerodynamics on civil structures under tornadic winds. Considering that it is expensive to conduct experimental testing in physical tornado …
A Case Study Of Community-Engaged Design: Creating Parametric Insurance To Meet The Safety Needs Of Fisherfolk In The Caribbean, Daniel B. Oerther
A Case Study Of Community-Engaged Design: Creating Parametric Insurance To Meet The Safety Needs Of Fisherfolk In The Caribbean, Daniel B. Oerther
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
The creation of the Caribbean Ocean and Aquaculture Sustainability faciliTy (COAST) is used as a case study of community-engaged design addressing safety needs. COAST is a parametric insurance product, sold to national governments, which was designed to meet the food and nutrition security of small- and medium-scale fisherfolk. The design of COAST is an example of convergence research, where the discipline of engineering was integrated with another discipline to solve pressing societal needs of Caribbean fisherfolk. This case study demonstrates that community-engaged design helps to (1) identify and include historically underrepresented stakeholders, (2) emphasize the importance of professional responsibility for …
Simplified Analytical Model To Assess Key Factors Influenced By Fiber Alignment And Their Effect On Tensile Performance Of Uhpc, Le Teng, Huanghuang Huang, Kamal Khayat, Xiaojian Gao
Simplified Analytical Model To Assess Key Factors Influenced By Fiber Alignment And Their Effect On Tensile Performance Of Uhpc, Le Teng, Huanghuang Huang, Kamal Khayat, Xiaojian Gao
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
The increase in single-fiber pullout strength usually improves tensile strength and toughness of UHPC. An increase in fiber orientation angle (θ) up to 45° to the direction of pullout load was found to enhance the single-fiber pullout strength. However, such increase in predominant θ value along tensile strength specimens led to a reduction in tensile strength of UHPC. In order to elucidate this controversial observation, analytical models combined with experiments were carried out to assess the key factors influencing the tensile properties of UHPC due to variations of fiber orientation. The test parameters involved the evaluation of the effect of …
Solving The Negative Earnings Dilemma Of Multistage Bidding In Public Construction And Infrastructure Projects: A Game Theory-Based Approach, Muaz O. Ahmed, Islam H. El-Adaway, Kalyn T. Coatney
Solving The Negative Earnings Dilemma Of Multistage Bidding In Public Construction And Infrastructure Projects: A Game Theory-Based Approach, Muaz O. Ahmed, Islam H. El-Adaway, Kalyn T. Coatney
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
With the tremendous increase in spending on public projects, contractors need to employ efficient and effective bidding strategies to cope with the competitive bidding environment. Usually, general contractors carry a portion of the work and subcontract other parts to eventually submit a holistic joint bid. This bidding setting is referred to as multistage bidding where subcontractors submit their quotations/bids to the general contractor, after which the general contractor submits a final joint bid for the whole project. In a multistage bidding environment, general contractors may be faced with an increase in the probability of negative or below normal profits. Despite …
Design, Dynamic Performance And Ecological Efficiency Of Fiber-Reinforced Mortars With Different Binder Systems: Ordinary Portland Cement, Limestone Calcined Clay Cement And Alkali-Activated Slag, Wu Jian Long, Zhuorui Wu, Kamal Khayat, Jingjie Wei, Biqin Dong, Feng Xing, Jinrui Zhang
Design, Dynamic Performance And Ecological Efficiency Of Fiber-Reinforced Mortars With Different Binder Systems: Ordinary Portland Cement, Limestone Calcined Clay Cement And Alkali-Activated Slag, Wu Jian Long, Zhuorui Wu, Kamal Khayat, Jingjie Wei, Biqin Dong, Feng Xing, Jinrui Zhang
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
The dynamic mechanical properties and ecological efficiency of cement-based composites are of vital importance to the development of green building materials and dynamic loadings resistance. In this study, the dynamic mechanical properties, ecological and economic efficiency of fiber-reinforced mortars (FRMs) made with different binder systems, including ordinary Portland cement (OPC), limestone calcined clay cement (LC3), and alkali-activated slag (AAS), were compared. In addition, different rheological parameters were designed to evaluate the dynamic mechanical properties of FRMs. The fiber pull-out testing, Barrett-Joyner-Halenda (BJH) testing, and scanning electron microscope (SEM) were used to reveal the difference in the dynamic mechanical properties of …
Ahp Based Multi Criteria Decision Analysis Of Success Factors To Enhance Decision Making In Infrastructure Construction Projects, Solomon Belay, James D. Goedert, Asregedew Woldesenbet, Saeed Rokooei
Ahp Based Multi Criteria Decision Analysis Of Success Factors To Enhance Decision Making In Infrastructure Construction Projects, Solomon Belay, James D. Goedert, Asregedew Woldesenbet, Saeed Rokooei
Durham School of Architectural Engineering and Construction: Faculty Publications
The study presents analytical data-based multi-criteria approach of critical success factors of infrastructure construction projects analyzed in the Ethiopian construction industry. This multi-criteria technique helps to improve the decision capabilities and ultimate performance of construction processes in various low-income countries of the East African region. The aim of this paper is to establish a logical relationship and interdependencies of success-related factors for enhancing decision making for various project teams and identify priorities while taking into account all known construction organizational constraints. A structured hierarchical matrix was developed based on a pre-identified success-related factors, and initially evaluated by experienced professionals as …
Dynamical Properties Of Environmental High-Performance Composites With Calcined Clay, Jingjie Wei, Wu Jian Long, Kamal Khayat, Biqin Dong, Liu Mei, Feng Xing
Dynamical Properties Of Environmental High-Performance Composites With Calcined Clay, Jingjie Wei, Wu Jian Long, Kamal Khayat, Biqin Dong, Liu Mei, Feng Xing
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
Concrete structures may be exposed to dynamic loadings within short periods such as earthquakes and vehicles load, resulting in substantial damage to human life and property because of the collapse of concrete structures. The research achievements on dynamic properties of high-performance composites with LC3 (HPC-LC3) are limited, although dynamic loadings are commonly encountered in infrastructure. The study aims to develop a new-green concrete product (HPC-LC3) with high dynamical properties and promote its mass use in a vibration service environment by investigating dynamical properties of HPC-LC3. Dynamical properties of structure can be promoted at material level by means of enhancing the …
Setting Times Of Early-Age Mortars Determined From Evolution Curves Of Poisson’S Ratio, Bate Bate, Xiao Chen, Chao Chen, Hongyan Ma, Jianfeng Zhu, Junnan Cao, Jiakai Chen, Kamal Khayat, Shuai Zhang
Setting Times Of Early-Age Mortars Determined From Evolution Curves Of Poisson’S Ratio, Bate Bate, Xiao Chen, Chao Chen, Hongyan Ma, Jianfeng Zhu, Junnan Cao, Jiakai Chen, Kamal Khayat, Shuai Zhang
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
Setting times, as the early-age properties of cement-based materials, are important properties to ensure the quality and long-term performance of engineering structures. To determine the initial and final setting times of cementitious materials, the compressive wave velocity and shear wave velocity of six early-age mortar samples were monitored. Their time evolution curves of Young's modulus, shear modulus, bulk modulus, and Poisson's ratio were then calculated and analyzed. The signature times of the derivatives of the Poisson's ratio evolution curves correlate well with the initial and final setting times, and the remarkably high coefficient of determination values relative to the data …
Developing Mix Proportions For Class C Fly Ash-Based Alkali-Activated 3d-Printed Concrete Mixtures, Fareh Abudawaba, Eslam Gomaa, Ahmed Gheni, Mohamed Elgawady
Developing Mix Proportions For Class C Fly Ash-Based Alkali-Activated 3d-Printed Concrete Mixtures, Fareh Abudawaba, Eslam Gomaa, Ahmed Gheni, Mohamed Elgawady
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
This study investigated the use of class C fly ash (FA) as a precursor for alkali-activated mortar (AAM) for 3D-printed concrete (3DPC). AAMs with different water-to-FA (W/FA), alkaline activator-to-FA (Alk/FA), and sodium silicate-to-sodium hydroxide (SS/SH) ratios were examined to develop mixtures that can be tailored for different structural applications of 3DPC. The fresh properties, including extrudability and buildability, were evaluated through the open time (OT) and immediate deformation tests, respectively. Different cycle times (CTs) were applied to achieve a strain limit state necessary to maintain the printed shape. The strength of AAMs in different directions at different CTs was examined. …
Water Film Depth Prediction Model For Highly Textured Pavement Surface Drainage, Alireza Pourhassan, Ahmed A. Gheni, Mohamed Elgawady
Water Film Depth Prediction Model For Highly Textured Pavement Surface Drainage, Alireza Pourhassan, Ahmed A. Gheni, Mohamed Elgawady
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
Water film depth (WFD) is an important factor for road traffic safety because of its direct connection with skid resistance, hydroplaning speed, and the tendency of splash and spray. Increasing the pavement macrotexture reduces WFD. However, existing models for WFD prediction have not been developed on highly textured surfaces such as chip seal. Furthermore, the rainfall intensities used for developing most of these models were relatively low, leaving no or low WFD on chip seal surfaces. To propose a WFD prediction model suitable for highly textured surfaces and to consider the effect of surface material type, an experimental study was …
A Global Survey Of Infection Control And Mitigation Measures For Combating The Transmission Of Covid-19 Pandemic In Buildings Under Facilities Management Services, Hadi Sarvari, Zhen Chen, Daniel W. M. Chan, Ellyn A. Lester, Nordin Yahaya, Hala Nassereddine, Aynaz Lotfata
A Global Survey Of Infection Control And Mitigation Measures For Combating The Transmission Of Covid-19 Pandemic In Buildings Under Facilities Management Services, Hadi Sarvari, Zhen Chen, Daniel W. M. Chan, Ellyn A. Lester, Nordin Yahaya, Hala Nassereddine, Aynaz Lotfata
Civil Engineering Faculty Publications
Facilities management along with health care are two important aspects in controlling the spread of infectious diseases with regard to controlling the outbreak of global COVID-19 pandemic. Hence, with the increasing outbreak of COVID-19 pandemic, the importance of examining the relationship between the built environment and the outbreak of infectious diseases has become more significant. The aim of the research described in this article is to develop effective infection control and mitigation measures to prevent the transmission of COVID-19 pandemic in the built environment. This study seeks to answer the question of how the facilities management industry can help reduce …
Building Performance - Societal Drive, Programme And Symposium, Joseph Little, Patrick Daly
Building Performance - Societal Drive, Programme And Symposium, Joseph Little, Patrick Daly
Articles
Society is increasingly looking at the construction industry to mitigate the environmental crisis and solve the housing crisis through wholesale embrace of three broad sets of challenges. The MSc in Building Performance (Energy Efficiency in Design) (MSc BP(EED)) was created in 2017 to provide significant upskilling in the knowledge, skills, and software applications of building design professionals so that they can meet these challenges, while creating compliant, sustainable, super-low energy, new and renovated buildings. The delivery of the programme supports upskilling of employed building design professionals at Masters level, encouraging a minority to develop their capacity and interest in research …
Seismic Risk Assessment Of A Steel Building Supported On Helical Pile Groups, Maryam Shahbazi, Amy B. Cerato, Emad M. Hassan, Hussam Mahmoud
Seismic Risk Assessment Of A Steel Building Supported On Helical Pile Groups, Maryam Shahbazi, Amy B. Cerato, Emad M. Hassan, Hussam Mahmoud
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
Designing structures to be the least vulnerable within earthquake-prone areas is a serious challenge for structural engineers. One common and useful tool that structural engineers use to predict the vulnerability of a structure during an earthquake is a fragility curve. However, most structural fragility curves do not take into consideration the contribution of pile foundation systems in the structural vulnerability. Therefore, this study aims to modify existing fragility curves of a six-story fixed-base steel frame hospital building with buckling-restrained braces, to incorporate the effect of helical pile group behavior on the fragility of the structure. To that end, a finite …
Causes Influencing Construction Waste Generation During The Design Process: An Analytical Study, Aya Saad, Ayman Ahmed Ezzat Othman
Causes Influencing Construction Waste Generation During The Design Process: An Analytical Study, Aya Saad, Ayman Ahmed Ezzat Othman
Architectural Engineering
Despite the social and economic contributions of the construction industry towards achieving sustainable development objectives, it has an adverse effect on the environment such as the generation of waste, water, and energy consumption. Construction waste (CW) is the loss of materials that are produced during or after the construction process and has no remaining value. Several countries promote waste elimination plans at early stages to reduce CW at its source. The Egyptian government is expanding its investments in new mega projects and infrastructure facilities like new administrative capital, bridges, roads, energy projects which resulted in increasing the rate and amount …
Achieving Sustainability Through Reducing Risks During Architecture Design Process: A Lean Management Perspective, Sherouk Abdelrehim, Ayman Ahmed Ezzat Othman
Achieving Sustainability Through Reducing Risks During Architecture Design Process: A Lean Management Perspective, Sherouk Abdelrehim, Ayman Ahmed Ezzat Othman
Architectural Engineering
The construction industry, as one of the largest industries in the world, plays a critical role in achieving national and international social and economic sustainable development goals. Socially, it is concerned with delivering long-term projects that turn client and end-user requirements into designs that specify technical aspects, functional specific requirements, and standards of quality. Economically, the construction industry contributes to a country's gross domestic product (GDP) by creating jobs and providing the country's infrastructure. the construction industry's nature is more vulnerable than other industries. This is believed to be due to the complex and dynamic nature of construction projects, as …
Analysis Of Sustainability Assessment Rating Systems For Existing Healthcare Buildings, Rowaida Ali, Mohamed Afify, Walid Abdel-Meniem, Ayman Ahmed Ezzat Othman
Analysis Of Sustainability Assessment Rating Systems For Existing Healthcare Buildings, Rowaida Ali, Mohamed Afify, Walid Abdel-Meniem, Ayman Ahmed Ezzat Othman
Architectural Engineering
Sustainability is the goal pursued by societies worldwide. Existing buildings have had their share of those issues, specifically healthcare buildings, as most governments encourage green new construction and neglect existing buildings. Additionally, the benefits of existing buildings in preserving the environment, and its resources and reducing energy and global warming crises. The research objective is to achieve a high-level performance of existing healthcare buildings within a framework of evaluating the most important determinants affecting these buildings. The paper will focus on presenting the different rating systems such as LEED and BREEAM, by dividing and analyzing these systems, given that each …
Public-Private Partnerships As An Approach For Alleviating Risks Associated With Adaptive Reuse Of Heritage Buildings In Egypt, Ayman Ahmed Ezzat Othman, Nouran Abdeltawab Mahmoud
Public-Private Partnerships As An Approach For Alleviating Risks Associated With Adaptive Reuse Of Heritage Buildings In Egypt, Ayman Ahmed Ezzat Othman, Nouran Abdeltawab Mahmoud
Architectural Engineering
The status of heritage buildings in Egypt has remained threatened for decades as a result of many factors such as negligence, ignorance and lack of resources, which consequently led to degradation. Hence, opportunities to utilize these buildings efficiently are wasted. Adaptive reuse of heritage buildings has proven to be a beneficial, yet risky approach in Egypt. Additionally, the pressuring demands on the government to conserve these heritage buildings and satisfy other public demands have been growing even more recently. Accordingly, there is a need for the involvement of the private sector to aid the government in its adaptive reuse initiatives …
The Aesthetic Effect Of Photovoltaic Cells On The Building Facades, Khloud Khalid Eldamshiry
The Aesthetic Effect Of Photovoltaic Cells On The Building Facades, Khloud Khalid Eldamshiry
Architectural Engineering
Technological advancement in building incorporated photovoltaic (BIPV) has transformed the façade of the building into a generator powered by renewable energy sources. The BIPV facades are designed to provide energy production alongside traditional design goals such as aesthetics art and environmental control. However, the problem is that architectural design goals sometimes conflict with energy performance such as visibility and daylight versus maximum power output. In this context, the use of renewable energy sources such as solar energy seems to be worthwhile as they are numerous and have enormous environmental and economic prospects. This study aims to provide a new entrance …
A Prototype Evaluation Tool For Museum Exhibition Design: Aligning Display Techniques With Learning Identities, Khloud Khalid Eldamshiry, Rania Rushdy Moussa
A Prototype Evaluation Tool For Museum Exhibition Design: Aligning Display Techniques With Learning Identities, Khloud Khalid Eldamshiry, Rania Rushdy Moussa
Architectural Engineering
Museums have been forced by the pressure of change to switch practices and outlooks to transform museum visitors from passive consumers in a collection-focused ‘static exhibition’ to active participants in a visitor- centred ‘interactive technology exhibition’. This paper aims to model a framework for museum exhibition design that can be used as a prototype evaluation tool. It is achieved throughout analysing the interrelationships between museum visitors learning identities and their museum experiences and what are the display techniques that can be used to increase museum visitors’ social interaction with the museum environment and how each technique will affect the visitor’s …
Assessment Of Design Quality And Developing A Methodological Model For Open Air Museums: A Study Of Wadi El-Hitan Protected Area, Khloud Khalid Eldamshiry
Assessment Of Design Quality And Developing A Methodological Model For Open Air Museums: A Study Of Wadi El-Hitan Protected Area, Khloud Khalid Eldamshiry
Architectural Engineering
Open air natural history museums acts as a distinct type of museum exhibiting its collections out of doors aiming to document earlier forms of life, ways of living, cultural habits and folk costumes. “Natural history Museums and cultural organizations have been recognized as a value for the vitality and character of cities which can be used as a tool for “urban regeneration”, that includes the challenge to achieve longterm, strategic reshaping of cities by using a powerful and unified technological system “spreadsheet based decision support system:” to plan for a future vision of the museum as an urban space that …
Indoor Air Quality Through The Lens Of Outdoor Atmospheric Chemistry, Jonathan P.D. Abbatt, Douglas B. Collins
Indoor Air Quality Through The Lens Of Outdoor Atmospheric Chemistry, Jonathan P.D. Abbatt, Douglas B. Collins
Faculty Contributions to Books
Outdoor atmospheric chemistry and air quality have been the topic of research that intensified in earnest around the mid-20th century, while indoor air quality research has only been a key focus of chemical researchers over the last 30 years. Examining practices and approaches employed in the outdoor atmospheric chemistry research enterprise provides an additional viewpoint from which we can chart new paths to increase scientific understanding of indoor chemistry. This chapter explores our understanding of primary chemical sources, homogeneous and multiphase reactivity, gas-surface partitioning, and the coupling between the chemistry and dynamics of indoor air through the lens of …
Open Air Natural History Museums Transformation: From Static To Interactive, Khloud Khalid Eldamshiry
Open Air Natural History Museums Transformation: From Static To Interactive, Khloud Khalid Eldamshiry
Architectural Engineering
Open air natural history museums act as a distinct type of museum that exhibits its collections out of doors aiming to record earlier life forms, ways of life, cultural customs and habits. Nowadays, museums including the Natural History Museums, look forward to increase the number of visitors and revisited visitors, throughout transforming museum visitors from passive consumers in a collection focused ‘static exhibition’ to active participants in a visitor centered ‘interactive technology exhibition’ by making the museum collection easier for the general public to use, more technically and technologically displayed. Therefore, display techniques became a main key within the visitors …
Early Supplier Involvement Framework For Reducing Construction Waste During The Design Process, Ayman Ahmed Ezzat Othman, Yomna Abdelghany El-Saeidy
Early Supplier Involvement Framework For Reducing Construction Waste During The Design Process, Ayman Ahmed Ezzat Othman, Yomna Abdelghany El-Saeidy
Architectural Engineering
Purpose – The purpose of this paper is to develop a framework to facilitate early supplier involvement (ESI) as an approach for reducing construction waste (CW) generated during the design process. Design/methodology/approach – A research methodology consists of literature review, case studies and survey questionnaire was designed to achieve the abovementioned aim. First, the literature review was used to investigate CW, CW generated during the design process, the design process and ESI. Second, two construction projects were analysed to investigate the role of ESI towards reducing CW generated during the design waste. Third, a survey questionnaire was carried out with …
Risks Of Innovation In The Architectural Design Process In Egypt: An Investigative Study, Rawan Medhat, Ayman Ahmed Ezzat Othman
Risks Of Innovation In The Architectural Design Process In Egypt: An Investigative Study, Rawan Medhat, Ayman Ahmed Ezzat Othman
Architectural Engineering
Achieving sustainability in construction projects is becoming an increasing priority worldwide. Being one of the crucial phases of the construction process, the design process plays a major role in achieving the goals of sustainability. Adopting innovative design solutions is a promising way of enhancing the sustainable performance of buildings. However, the implementation of innovative solutions is risky and needs to be managed carefully to avoid failure. Due to the increasing number of construction projects being developed in Egypt and because of the need to achieve the Sustainable Development Strategy (SDS) 2030, adopting innovative solutions became an essence. Accordingly, this research …
Tilt-Up Partially Composite Insulated Wall Panels, Marc Maguire, Salam Al-Rubaye
Tilt-Up Partially Composite Insulated Wall Panels, Marc Maguire, Salam Al-Rubaye
Durham School of Architectural Engineering and Construction: Faculty Publications
This research project was initiated to investigate the behavior of load-bearing concrete insulated wall panels for use in tilt-up construction. The primary objective was to understand the inelastic behavior of these panels so that engineers could perform a proper second-order analysis for combined axial and out-of-plane loading. Toward this aim, the Tilt-up Concrete Institute (TCA) and wythe connector suppliers Innstruct, Thermomass, HK Composites, Dayton Superior, and IconX, funded this study.
This report contains information related to testing of solid and partially composite insulated wall panels that integrated proprietary wythe connection systems. Using the information from these tests, a method to …
Healthcare And Education Networks Interaction As An Indicator Of Social Services Stability Following Natural Disasters, Emad M. Hassan, Hussam Mahmoud
Healthcare And Education Networks Interaction As An Indicator Of Social Services Stability Following Natural Disasters, Emad M. Hassan, Hussam Mahmoud
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
Healthcare and education systems have been identified by various national and international organizations as the main pillars of communities' stability. Understanding the correlation between these main social services institutions is critical to determining the tipping point of communities following natural disasters. Despite being defined as social services stability indicators, to date, no studies have been conducted to determine the level of interdependence between schools and hospitals and their collective influence on their recoveries following extreme events. In this study, we devise an agent-based model to investigate the complex interaction between healthcare and education networks and their overall recovery, while considering …
Orchestrating Performance Of Healthcare Networks Subjected To The Compound Events Of Natural Disasters And Pandemic, Emad M. Hassan, Hussam N. Mahmoud
Orchestrating Performance Of Healthcare Networks Subjected To The Compound Events Of Natural Disasters And Pandemic, Emad M. Hassan, Hussam N. Mahmoud
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
The current COVID-19 pandemic has demonstrated the vulnerability of healthcare systems worldwide. When combined with natural disasters, pandemics can further strain an already exhausted healthcare system. To date, frameworks for quantifying the collective effect of the two events on hospitals are nonexistent. Moreover, analytical methods for capturing the dynamic spatiotemporal variability in capacity and demand of the healthcare system posed by different stressors are lacking. Here, we investigate the combined impact of wildfire and pandemic on a network of hospitals. We combine wildfire data with varying courses of the spread of COVID-19 to evaluate the effectiveness of different strategies for …
Higher Sound Levels In K-12 Classrooms Correlate To Lower Math Achievement Scores, Laura Caroline Brill, Lily M. Wang
Higher Sound Levels In K-12 Classrooms Correlate To Lower Math Achievement Scores, Laura Caroline Brill, Lily M. Wang
Durham School of Architectural Engineering and Construction: Faculty Publications
Sound levels from occupied classrooms have been gathered from 220 classrooms across four grade levels (3, 5, 8 and 11) over six school days each and processed with k-means clustering into speech and non-speech clusters. Three metrics describing the classroom acoustics, including the average daily A-weighted equivalent level for non-speech, the average daily difference between the A-weighted equivalent levels for speech and nonspeech (a signal to noise ratio), and the mid-frequency averaged reverberation time, were analyzed against classroom-aggregated standardized reading and math achievement test scores, while controlling for classroom demographics including socioeconomic status. Interactions between the metrics and demographics were …