Architecture Commons^™

Investigation Of Greening Façade And Retrofitting Strategies On Outdoor Thermal Comfort And Indoor Energy Consumption In New Assiut City, Egypt, Amr Sayed Hassan Abdallah, Randa M. A. Mahmoud

Mansoura Engineering Journal

This study aims to investigate the effect of greening façades and roofs on the outdoor thermal comfort of residences and indoor energy consumption within the context of different retrofitting strategies. The proposed methodology consists of two main stages, first Envi-met will be used to model the base case and study the effect of green walls and roofs on outdoor thermal comfort, then DesignBuilder will be used to estimate the annual energy consumption of the base case and six retrofitting strategies. An investigation was performed for a new residential complex Youth housing sector in New Assiut City as a model of …

Tricritical Point As A Crossover Between Type-Is And Type-Iis Bifurcations, Prabakaran Rajamanickam, Joel Daou

Progress in Scale Modeling, an International Journal

A tricritical point as a crossover between (stationary finite-wavelength) type-I_s and (stationary longwave) type-II_s bifurcations is identified in the study of diffusive-thermal (Turing) instability of flames propagating in a Hele-Shaw channel in a direction transverse to a shear flow. Three regimes exhibiting different scaling laws are identified in the neighbourhood of the tricritical point. For these three regimes, sixth-order partial differential equations are obtained governing the weakly nonlinear evolution of unstable solutions near the onset of instability. These sixth-order PDES may be regarded as the substitute for the classical fourth-order Kuramoto­­­­­­–­­Sivashinsky equation which is not applicable near the …

Chacahoula 2023, Tram Phan, Mallory Kaul, Alayna Pellegrin

Chacahoula

WE GROW, WE DEVELOP, WE THRIVE:

The 2023 issue of Chacahoula includes December 2022 and May 2023 graduating classes, as well as stunning photography of Week of Welcome, Homecoming, Mardi Gras, and Spring Fever. With features covering notable students, faculty, and staff, this year's time capsule beautifully preserves an academic year in the life of the University of Louisiana at Monroe.

Construction Aspects And Seismic Analysis Of Typical Buildings In Dolpo, Lhakpa Tsering

Independent Study Project (ISP) Collection

This study delves into the construction aspects and seismic analysis of typical buildings in the challenging terrain of Dolpo, situated within the Himalayan mountain range. Dolpo's unique geological and geographical characteristics, combined with its susceptibility to seismic activity, make it crucial to investigate and understand the dynamics of construction in this remote region. The research explores traditional and contemporary building practices, aiming to elucidate the interplay between construction methodologies and seismic resilience. Through a comprehensive examination of the geological context, structural design, and seismic vulnerability, this study contributes valuable insights to inform the development of robust and earthquake-resistant building strategies …

Mixing Rates In Stably Stratified Flows With Respect To The Turbulent Froude Number And Turbulent Scales, Matthew R. Klema, Subhas Karan Venayagamoorthy

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

In this analysis the quantification of diapycnal diffusivity Kρ in stratified flows such as those found in the ocean and atmosphere is explored. There are two simplifications that are routinely made when estimating mixing rates in stably stratified flows. First, a constant value is commonly assumed for the (irreversible) mixing coefficient Γ . Second, dissipation rates of turbulent kinetic energy ϵ are inferred using either the Thorpe (or Ellison) length scales or from microstructure measurements using the isotropy assumption. Data from three independent direct numerical simulations of homogeneous stratified turbulence are used as a testbed to highlight impacts of these …

The Professional Constructor, Full Issue, Volume 48, Number 01

The Professional Constructor

No abstract provided.

Effect Of Rotation On Mixing Efficiency In Homogeneous Stratified Turbulence Using Unforced Direct Numerical Simulations, Matthew Klema, S. Karan Venayagamoorthy, Annick Pouquet, Duane Rosenberg, Raffaele Marino

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Diapycnal (irreversible) mixing is analyzed using thirty direct numerical simulations (at 1024 ³ resolution) of homogeneous rotating stratified turbulence (RST) in the absence of imposed shear or forcing. The influence of varied rotation and stratification rates on the energetics (in particular the dissipation rates of kinetic and potential energies) is presented. Data is also analyzed within a new parametric framework, using the turbulent Froude and Rossby numbers Frt= ϵ/ Nk, Rot= ϵ/ fk, where k is the turbulent kinetic energy, ϵ its rate of dissipation, N the buoyancy frequency and f the Coriolis parameter. This framework is used to illustrate …

Mechanism Underlying Effect Of Expansive Agent And Shrinkage Reducing Admixture On Mechanical Properties And Fiber-Matrix Bonding Of Fiber-Reinforced Mortar, Kamran Aghaee, Taihao Han, Aditya Kumar, Kamal Khayat

Materials Science and Engineering Faculty Research & Creative Works

Expansive agent (EA) and shrinkage reducing admixture (SRA) are utilized to reduce shrinkage and risk of cracking in concrete. EA compensates shrinkage by initial expansion, and SRA reduces surface tension in the pore fluid. Although EA and SRA effectively reduce shrinkage, they can impair micro-structure of concrete at high contents. The shrinkage reduction effect of EA and SRA is well known; however, there is limited knowledge about their negative effect on microstructure and fiber matrix interfacial transition zone (ITZ). The current study explores the effect of using 10 % CaO-based EA, 2 % SRA, and their combination on mechanical, shrinkage, …

Preface: Special Issue On Turbulence And Mixing In Stratified Flows, S. Karan Venayagamoorthy

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

No abstract provided.

Rilem Tc 266-Mrp: Round-Robin Rheological Tests On High Performance Mortar And Concrete With Adapted Rheology—Evaluating Structural Build-Up At Rest Of Mortar And Concrete, Sofiane Amziane, Kamal Khayat, Mohammed Sonebi, Arnaud Perrot

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This Paper Presents the Results of a Round-Robin Testing Program Undertaken by RILEM TC-266-Measuring Rheological Properties of Cement-Based Materials in May 2018 at the Université D'Artois in Bethune, France. Seven Types of Rheometers Were Compared; They Consisted of Four ICAR Rheometers, Viskomat XL Rheometer, EBT-V Rheometer, Sliding Pipe Rheometer (SLIPER), RheoCAD Rheometer, and 4SCC Rheometer, as Well as the Plate Test. This Paper Discusses the Results of the Evolution of the Static Yield Stress at Rest of Three Mortar and Five Concrete Mixtures that Were Determined using Two ICAR Rheometers, Viskomat XL, and EBT-V Rheometers, as Well as the Plate …

Atomic Insights Into The Structural Properties And Displacement Cascades In Ytterbium Titanate Pyrochlore (Yb2ti2o7) And High-Entropy Pyrochlores, M. Mustafa Azeem, Qingyu Wang

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Pyrochlore oxides ((Formula presented.) are potential nuclear waste substrate materials due to their superior radiation resistance properties. We performed molecular dynamics simulations to study the structural properties and displacement cascades in ytterbium titanate pyrochlore ((Formula presented.)) and high-entropy alloys (HEPy), e.g., (Formula presented.), (Formula presented.), and (Formula presented.). We computed lattice constants (LC) ((Formula presented.)) and threshold displacement energy (Ed). Furthermore, the calculation for (Formula presented.) and ionic radius ((Formula presented.)) were performed by substituting a combination of cations at the A and B sites of the original pyrochlore structure. Our simulation results have demonstrated that the lattice constant is …

Effect Of Harassment, Stereotypes, And Distractions On Female Driving Behavior In Egypt, Eman K. Ali, Sherif M. El-Badawy, Ragaa T. Abd El-Hakim

Mansoura Engineering Journal

Men and women are different in their driving behavior. The reasons for these differences vary from neurochemical structures, hormonal processes, to physical abilities for long driving hours or stress coming from accompanying children while driving. In Egypt and Middle East, female drivers face a diversity of challenges such as the stereotype that women are poor drivers. Moreover, there have been incidents when female drivers faced road harassments from other drivers, which may lead to accidents. In this research, data was collected from 1038 Egyptian female drivers in the age of 16 to 75 years old. The risk factors that play …

Common Ground Newsletter Fall 2023, Missouri University Of Science And Technology

Common Ground

- Free-Format Education

- S&T student selected as national ASCE ambassador

- Heart of a servant

- Exploring history, architecture of Chicago

Accelerating Bim Adoption In Ireland: A Ten-Year Review Of Cita Bim Gathering Proceedings, Alan Hore, Roger West, Barry Mcauley

Conference Papers

Digital construction interfaces have been studied extensively over the last few decades, with an ever-grow- ing catalogue of publications. The CitA BIM Gathering conferences have played a key role in bringing together the research and industry communities ina collaborative setting over the past decade in Ireland. In this paper the authors systematically review 10 years of papers published in the BIM Gathering pro- ceedings since the inaugural conference in 2013. A total of 175 papers involving over 200 authors have been reviewed and classified under the 2018 World Economic Forum (WEF) recommendations in respect to ac- celerating BIM adoption. The …

An Investigation Into Ireland’S Bim Skills Gap, Guadalupe Centanni, Barry Mcauley

Conference Papers

The adoption of digital skills within the Irish AEC Sector has the potential to enhance efficiency and competitiveness among its stakeholders. Despite this opportunity, there is still a high demand for skilled BIM professionals, which cannot be currently met. To meet this skills demand and directly target future skills gaps within Ireland, several challenges must be addressed to facilitate broader BIM adoption. This paper focuses on addressing this gap by identifying steps to be followed to develop skilled professionals within BIM. This has been achieved by investigating the extent to which construction stakeholders in Ireland comprehend BIM and, examiningthe training …

An Applied Study Of Recycle Waste Application In The External Walls To Improve The Thermal Performance Of The Average Housing Units In Egypt, Christena Kamal Hannaa, Abdel-Monteleb Mohamed Aly, Sayed Shebl Mohamed Shebl, Amr Sayed Hassan Abdallah

Mansoura Engineering Journal

This study examines the importance of using recycled waste in building materials in order to reduce energy consumption and improve the environmental impact of housing projects. The study focuses on the possibility of using recycled waste in building bricks for external walls as one of the building envelope elements in average housing projects in Egypt. Waste such as limestone, polystyrene and rice ashes were used in compressed cement bricks for the external walls to study the effect on thermal conductivity, thermal comfort and energy consumption using a simulation program (Design Builder). The laboratory results found that the use of recycled …

Industry Colloquium Report, Robert Moore

Reports

In the ever-evolving landscape of the construction industry, digital transformation has emerged as a pivotal force reshaping the way projects are conceived, executed, and delivered. This transformation, fuelled by cutting-edge technology and innovative practices, holds the promise of greater efficiency, sustainability, and collaboration within the construction sector.

This report offers a comprehensive summary of the Build Digital Project colloquium. It provides actionable insights and recommendations for clients, supply chain partners, and for prioritisation within the Build Digital Project pillars. As the industry partners seek to build a more efficient, sustainable, and collaborative construction sector, understanding and harnessing the invaluable insights …

Trumpet Directivity From A Rotating Semicircular Array, Samuel D. Bellows, Joseph E. Avila, Timothy W. Leishman

Directivity

The directivity function of a played musical instrument describes the angular dependence of its acoustic radiation and diffraction about the instrument, musician, and musician’s chair. Directivity influences sound in rehearsal, performance, and recording environments and signals in audio systems. Because high-resolution, spherically comprehensive measurements of played musical instruments have been unavailable in the past, the authors have undertaken research to produce and share such data for studies of musical instruments, simulations of acoustical environments, optimizations of microphone placements, and other applications. The authors acquired the data from repeated chromatic scales produced by a trumpet played at mezzo-forte in an anechoic …

Critical Assessment Of The Functional Efficiency And Resilience Of Residential Design Using Saga Method, Marwa Al Yazedy, Sherief Sheta, Medhat Samra

Mansoura Engineering Journal

The design in order to change the use has become one of the requirements of the functional efficiency of the building, which in turn is reflected in the sustainability of the building's use without the need for physical changes that result in large demolition waste as it is reflected in the quality of the user's life, the more the building is flexible in a way that guarantees the change of uses with changing current needs or future needs whenever Its job efficiency and his lifelong increased, and the user was satisfied with his residence for new residential units. Through the …

Analysis Of Factors Affecting Construction And Demolition Waste Reduction In Egypt, Ayman Ahmed Ezzat Othman, Ahmed Osama Daoud, Obas John Ebohon, Ali Bayyati

Architectural Engineering

Construction projects are associated with construction and demolition waste (CDW) generated at different stages. In Egypt’s case, the CDW problem has become a significant challenge, and the need to find sustainable solutions is overwhelming. Based on recent investigations in the literature, it was found that six main factors are affecting CDW reduction (CDWR) as follows: (1) waste-efficient materials procurement measures; (2) waste-efficient materials procurement models; (3) green materials procurement approach; (4) legislation; (5) culture & behaviour; and (6) awareness. In this study, a representative sample of Egyptian construction firms was screened to (1) investigate the applicability and effectiveness of CDWR …

The Impact Of The Architectural Design Of Kindergarten Buildings On The Formation Of The Identity Of The Child, Eman Ahmed Ebrahim, Ahmed Eltantawy Elmadawy, Asmaa Nasr El-Din Elbadrawy

Mansoura Engineering Journal

The stage of human childhood is one of the important stages in a person’s life. At this stage, the child’s abilities grow, his talents become clear, and all the possibilities of his physical, emotional, social and mental personality open up. This stage represents the cornerstone of the growth of psychological functions in the following years. Therefore, taking care of childhood and paying attention to its activities is one of the most important influences that contribute to the progress of societies, and there is no doubt that the process of growth for the child takes place during the child’s interaction with …

Introduction To 'Artificial Intelligence In Failure Analysis Of Transportation Infrastructure And Materials', Yue Hou, Qiao Dong, Dawei Wang, Jenny Liu

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Transportation infrastructures, including roads, bridges, tunnels, stations, airports and subways, play fundamental roles in modern society. Engineering failures of transportation infrastructures may result in significant damage to the public. The traditional methods are to monitor, store and analyze the information during the infrastructure and material design, testing, construction, numerical simulations, evaluation, operation, maintenance and preservation, using mechanistic-based, material based and statistics-based approaches. In recent decades, artificial intelligence (AI) has drawn the attention of many researchers and has been used as a powerful tool to understand and analyze the engineering failures in transportation infrastructure and materials. AI has the advantages of …

An Iot-Based Smart Wearable E-Health Monitoring System For Patients With Heart Diseases, Mohammed M. Abo-Zahhad

Mansoura Engineering Journal

Due to the world's growing population and increasing medical costs, smart and affordable healthcare has gained favour. It is essential to develop an effective e-health monitoring system that can identify abnormalities in real-time and support professionals in making diagnoses based on the data acquired. Recent advancements in mobile and cloud computing have led to the development of numerous cloud-based healthcare services and products. In this paper, an IoT-based wearable e-health monitoring system is presented. It continually monitors the patient's vital signs, including body temperature, heart rate, blood oxygen saturation, and an electrocardiogram (ECG). Using an IoT platform, we managed to …

In Situ Monitoring Of The Hydration Of Calcium Silicate Minerals In Cement With A Remote Fiber-Optic Raman Probe, Bohong Zhang, Wenyu Liao, Hongyan Ma, Jie Huang

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This study utilized a novel in situ fiber-optic Raman probe to continuously monitor the hydration progress of tricalcium silicate (C₃S) and dicalcium silicate (C₂S) without the need for sampling, from early hydration stage to later stages, and from fresh to hardened states of paste samples. By virtue of the remarkable ability of this technique in characterizing either dry or wet and crystalline or amorphous samples, the hydration processes of C₃S and C₂S pastes with different water-to-solid (w/s) ratios could be monitored from the start of the hydration reaction. The main hydration products, …

Scour Mitigation At Bridge Abutments Using Spur Dikes, Dina Hamdy Mustafa Mustafa Al Sirtasy, Hossam Abd El-Aziz Ahmed Abd El-Gawad, Mohamed T. Shamaa

Mansoura Engineering Journal

One of the main reasons for bridge failure is local scour at the bridge abutments. Laboratory experiments, under clear water scour condition, were carried out to investigate scour reduction around the vertical bridge abutment by adding one upstream spur dike. Sand with a median and standard deviation of diameter equal to 0.80 mm and 2.173 mm respectively, formed the bed material. Three different stages of spur dikes with varying sets as: 1) distances from the abutment (6 sets), 2) orientation angles (4 sets), and 3) lengths (3 sets), were considered. Effects of all spur dikes are studied with respect to …

Reaction Pathways, Kinetic Modelling And Parameter Estimation Of Heterogeneous Catalytic Trans-Esterificationprocess, Owolabi,R. U, Aderinsola A. P

Mansoura Engineering Journal

The kinetics of heterogeneous catalyzed trans-esterification between castor oil and methanol was studied and modeled. Kinetic data was obtained from a perfectly mixed slurry batch reactor. The modeling was conducted via the modified-hattori mechanism to determine the exact rate controlling step for the reaction. A total of five rate expressions were formed, which were as a result of; methanol adsorption, Triglyceride adsorption, Formation of the complex, Surface reaction and Glycerol desorption. Evaluation of best fitting model and parameter estimation was done using the nealder simplex least square optimization algorithm with the aid MATLAB software. The result from the regression analysis …

Part 2: Proposed Buckling Factor For Columns In Braced And Unbraced Frames With Composite Girders, S.A. Eltawil, N.S. Mahmoud, S.M. Abdrabou

Mansoura Engineering Journal

The influence of composite girders on the modified buckling factor for columns was investigated in both braced and unbraced frames. The composite girders' end conditions were represented as rigid and hinged . Furthermore, based on the proposed stiffness parameter, the derived formulation follows the same assumptions as the standard effective length factor (K-factor). Moreover, the suggested buckling factor equations for composite girders in braced and unbraced frames were obtained using the slope-deflection method. Concerning the unbraced frame, the proposed buckling factor of columns restrained by the composite girder improves the effective length calculation and makes for a more accurate and …

Scale Model Experiments Of Toxic Gas Production From The Combustion Of Polymers When Applied With Different Droplet Sizes Of Water Mist, Nicharee Thinnakornsutubutr, Masayuki Mizuno, Kazunori Kuwana

Progress in Scale Modeling, an International Journal

This research experimentally investigated the combustion of polymeric materials with water mist application in an enclosure, with an emphasis on the production of toxic gases. Two different diameters, ~100 and ~260 μm, were tested. The experimental conditions were determined based on Froude similarity laws for low drop Reynolds number conditions. Droplets and polymers’ physical and chemical properties influence the burning/extinguishing behavior and toxic-gas evolution. In general, larger droplets can extinguish a fire in a shorter time, and toxic gas concentrations in a test chamber decreased more rapidly. However, the large droplets tended to cause the flame expansion phenomenon for thermoplastics …

Gravimetric Geoid For Egypt Based On Properly Application Of Helmet's Method Of Condensations With Window Remove-Restore Technique, Atef Makhloof, Hussein A. Abd-Elmotaal, Mostafa Ashry

Mansoura Engineering Journal

This study uses the window-method for merging the gravity field wavelengths inside the remove-restore technique (RRT) to get the gravimetric geoid for Egypt using Helmert's models of condensation. In this case, the window approach (Abd-Elmotaal and Kühtreiber, 2003) was utilized to avert taking the topographic-condensation masses into account twice inside the data frame. A gravimetric geoid for Egypt has been calculated utilizing Helmert's first and second condensations approach and Airy- Heiskanen model. Within the context of the geoid computation, a thorough comparison between the various Helmert approaches and Airy-Heiskanen has been made. The comparison uses the estimated geoid indicators before …

Skills Matter – Up-Skilling Across Construction Stakeholders For Emerging Roles, Avril Behan, Paul Mccormack, Barry Mcauley

Conference Papers

The EU’s Climate Target Plan To 2030 (European Union 2020b) of achieving at least 55% reduction in Green House Gas emissions from 1990 levels, delivering towards a climate-neutral economy by 2050, requires systems-level change in the way we design, construct, and operate our built assets. Funding initiatives, such as co-ordinated by BUILD UP Skills, aim to deliver upskilling to the market but targets set by the European Skills Agenda may not be reached at current achievement levels. This paper presents the results of one completed and the progress of one ongoing Horizon 2020 funded project, BIMcert and ARISE, respectively. Learning …