Engineering Commons^™

Interactive Playscapes: Explorative Design And Robotic Fabrication Techniques, Chadi El Khoury, Rasha Sukkarieh

BAU Journal - Creative Sustainable Development

This research focuses on material-based practices and explorations by utilizing the carbon fiber fabric performance characteristics as a significant driver in the design and fabrication strategies. While the integrative aspects of computational design have been extensively used for the inclusion of environmental, manufacturing, or economic considerations, material information should be similarly employed as a generative driver. The paper describes and evaluates a full-scale prototype of installation for social play actuated in the heart of Beirut city, hence integrating material research with methodologies optimizing fabrication techniques for complex, performance-driven structures. The introduction of carbon fiber composites into the construction sector defines …

Democratic Elections And Sustainable Development:The Case Of Electoral District And Representation In Lebanon, Ali Mourad

BAU Journal - Creative Sustainable Development

The 2030 Agenda for Sustainable Development addresses democracy in Sustainable Development Goal 16 recognizing the indivisible links between peaceful societies and effective, accountable and inclusive institutions. Sustainable Development Goal 16 calls on UN Member States to promote responsive, inclusive, participatory and representative decision-making, and to build effective, accountable and transparent institutions at all levels. Thus, Elections are an integral part of the Sustainable Development Goal 16: “Peace, Justice and Strong Institutions” offer specific guidelines to tackle imperative challenges such as building effective, accountable and inclusive institutions; guaranteeing election integrity and trust; and ensuring responsive, inclusive, participatory and representative decision-making at …

Evaluation Of An Experimental Screw-Retained Retrievable Crown Versus Conventional Crown Design, Mohammad M. Rayyan, Ahmed Naguib M Hussien, Hanan A. Naguib, Hiba A. Makarem

BAU Journal - Creative Sustainable Development

Statement of problem: Removing cemented crowns is usually a complicated procedure that may lead to irreversible damage to the tooth/crown and mostly necessitate remake of crown with added effort for both patient and clinician. Purpose: This in-vitro study evaluated an experimental two-component, screw-retained retrievable crown design in comparison to the conventional design. Materials and methods: A total of 120 extracted maxillary 2nd premolars received root canal treatment and were divided into two groups (n=60 each) according to the crown design they will receive. Gp CC received a threaded modified post, a composite core and a metal coping, while Gp RC …

Simplified Technique For Removal Of Prefabricated Threaded Posts, Mohammad M. Rayyan, Ammar M. Alwaely

BAU Journal - Creative Sustainable Development

This paper describes a time-saving procedure for the removal of prefabricated threaded posts. In this technique, a slit is prepared in the head of the post to-be-removed so that it can be engaged by a jewelers’ precision stainless steel flat-blade screwdriver which would drive it out when rotated counterclockwise. This simple technique spares the clinician valuable time and effort during removal, requires minimal or no loss of valuable tooth structure compared to other techniques. It is also conservative in the sense that it does not expose dental tissue to thermal insults from use of ultrasound.

Escape Route Designs And Specifications For Office Buildings - “Cciat” Building As A Case Study, Mostafa El-Hefnawi

BAU Journal - Creative Sustainable Development

Many office buildings encounter various problems with their fire safety evacuation designs. The Chamber of Commerce, Industry and Agriculture Tripoli - North Lebanon (CCIAT) is considered the only modern office building in its context that lacks fire escape elements and emergency plans. This paper presents an analysis and proposals for an optimal evacuation scenario for the case of the CCIAT building, and develop solutions for similar office buildings. The problem is interpreted with reference to the positions of existing staircases and lifts and their connectivity with occupants’ offices and other facilities on the floors, in order to provide a comprehensive …

Heritage Cities After Wars: Between Tradition And Innovation - A Case Study Of Beirut In Lebanon, Mary Felix

BAU Journal - Creative Sustainable Development

Urban heritage is one of the most important aspects that identify a city’s history and evolution. Rebuilding cities after war is a concept that takes into consideration several aspects of maintaining a visual memory of urban heritage. A proper understanding of heritage aspects and elements should be considered in new extensions and the redesigning of old parts of cities, especially after wars. Beirut in Lebanon is one of the Middle Eastern cities that have been rehabilitated and rebuilt successfully after suffering from several wars. This research discusses and analyses conservation approaches that have been used in old parts of Beirut …

Impact Of Contaminated Interior Finishing Materials On The Educational Buildings, Osama Omar, Nael Al-Sarrag

BAU Journal - Creative Sustainable Development

This paper focuses on the impact of indoor finishing material contaminations such as Formaldehyde (HCHO) and Volatile organic compounds (VOCS). These contaminations are reflected through harmful effects on the health of occupants in the indoor environment, reflecting negatively on the comfort, satisfaction, and productivity of inhabitants in the indoor environment. The research focuses particularly on educational buildings as a case study and the effect of contaminations in a design studio located in a faculty building of a university in Debbieh, Lebanon. During the first year of building use, the study checked the concentration of (HCHO) and (VOCS) through the use …

The Appropriate Building Materials For Energy Saving In Different Climate Zones In Egypt, Eslam M. Elsamahy, Mary Felix

BAU Journal - Creative Sustainable Development

Nowadays, reducing energy consumption is globally considered a matter of high priority on the different levels of community and economic interest, especially in the developing countries, due to the growing shortage of traditional energy resources with the rapidly increasing energy prices and its impact on the natural environment through the consumption of various energy resources such as fossil fuels. The residential building sector is responsible for consuming a large percentage of energy, especially that used in heating and cooling, which could be reduced through using different passive design strategies, such as designing the building shape, setting the optimum orientation and …

Impact Of Bim On Building Design Quality, Khaled Sadek, Ibtihal El-Bastawissi, Rokia Raslan, Samer Sayary

BAU Journal - Creative Sustainable Development

During last decades, the aim of new technologies was to develop new information systems to automate manual processes. Large-scale projects in the field of construction industry need a different approach to organize and analyze data creating a database without any duplication or redundancy. Building Information Modeling (BIM) is a teamwork process using advanced technologies to generate data modeling. Based on a literature review, the present research proposes a set of hypotheses that links BIM implementation with the enhancement of information sharing capability (ISC) and collaborative decision capability (CDC) in the construction sector of the building industry. Consequently, it relates the …

Tolle Lege Works Published In 2020, Mcquade Library

Bibliographies

Compiled Tolle Lege bibliography of works published by members of the Merrimack College Community in 2020. Works include journal articles, books, book chapters, conference presentations and posters, and more.

Development Of A Novel Cardiac Ischemia-Reperfusion Model In The Axolotl, Jeremy Tolentino Llaniguez

Wayne State University Dissertations

The Center for Disease Control’s National Center for Health Statistics data for mortality from diseases of the heart show the age-adjusted death rate has fallen from almost 600 deaths in the 1950s to just over 190 deaths per 100,000 U.S. residents today. With the recognized limitations of pharmacotherapy of myocardial infarction (MI), cell-based therapies have been undergoing rapid development and clinical testing. However, there is still no consensus about cell types, delivery routes, dosing and treatment schedules and pretreatment conditioning of cells prior to administration. Furthermore, a fundamental question remains unanswered about the reasons for the poor capacity for myocardial …

Biotech Connector Brochure

Biotech Connector

The Biotech Connector represents an important opportunity to serve the economic needs of the people of Nebraska through further diversification of Nebraska's economy, and by helping forge and illuminate a pathway to jobs in the biotechnology space for Nebraska students.

The Biotech Connector is 7,700 sq. ft. of well-equipped wet-lab space located on Nebraska Innovation Campus. We provide incubation space and services to bioscience startups and high-growth biotech and research-based businesses.

Wet lab space provides aspiring startups and technology businesses with access to very expensive laboratory equipment that would be outside of the budget of most startups. Lack of access …

Exploring The Nebraska Rural Poll, 2020, Rebecca Vogt, Cheryl A. Burkhart-Kriesel, Bradley Lubben, L.J. Mcelravy, Timothy Meyer, Steve Schulz, Jason L. Weigle

Rural Futures Institute: Publications

The Nebraska Rural Poll was initiated in 1996. Over the past 24 years, input has been gathered from over 64,000 nonmetropolitan Nebraskans. 102 separate reports have been produced covering 31 unique topics

Trend Analysis

Subgroup Comparisons

Some questions have been repeated at various intervals of time

Computational Analysis Of Oxidative Stress In Endothelial Dysfunction: Insights On The Role Of Tetrahydrobiopterin, Ascorbate And Glutathione, Sheetal Kedar Panday

Wayne State University Dissertations

Oxidative stress and endothelial dysfunction are reported in the cardiovascular and neurovascular diseases. Oxidative stress is caused due to an increase in the generation of reactive oxygen (ROS) and nitrogen species (RNS) and incapacity of antioxidant systems to eliminate ROS and RNS. Endothelial dysfunction is characterized by a reduction in nitric oxide (NO) bioavailability. NO is constitutively produced by enzyme endothelial nitric oxide synthase (eNOS). A reduction in tetrahydrobiopterin (BH4), which is an essential cofactor of eNOS, can lead to eNOS uncoupling. There is complex interplay between the ROS/RNS and antioxidant system underlying pathophysiologies of vascular diseases, however our quantitative …

Development Of Rat Head Finite Element Model And Tissue Level Biomechanical Threshold For Traumatic Axonal Injury, Runzhou Zhou

Wayne State University Dissertations

Traumatic brain injury (TBI) is caused by local tissue deformation at the time of trauma, leading to neurological dysfunction. In the United States alone, 2.87 million people sustain a TBI each year, of which one-fifth results in death. Traumatic axonal injury (TAI) is a well-recognized consequence of every fatal head injury and more than 85% of vehicular crash-related blunt head injuries. The most common and important pathologic feature of TBIs are multifocal changes to axons in the white matter produced by rapid head acceleration/deceleration during a traumatic event with consequent local shear/tension on neural tissue and axons contributing to secondary …

Instructions To Authors, Academy Editors

Journal of the Arkansas Academy of Science

No abstract provided.

Understanding The Effect Of Single- And Twin-Screw Extrusion Processing Parameters On Physical And Physico-Chemical Properties Of Sprouted Quinoa And Sprouted Proso Millets, Gabriela John Swamy

Electronic Theses and Dissertations

According to Mordor Intelligence Research, the new compositional research and moisture content extrusion process are helping the growth of the plant protein market. The demand for plant proteins is growing at a fast rate, owing to change in lifestyle, lack of balanced dietary intake, and improved research and development in order to develop new kinds of plant-protein enriched products. It is necessary to identify the right plant protein sources and choose the right processing methodology to create highly digestible foods which can be consumed by infants and elderly as well. In addition, it is important to support local farmers and …

Effet De L’Expertise Et Du Sexe Sur Les Contraintes À L’Épaule En Manutention, Etienne Goubault, Romain Martinez, Najoua Assila, Jennifer Dowling-Medley, Élodie Monga-Dubreuil, Sophie-Anne Scherrer, André Plamondon, Mickaël Begon

Rapports de recherche scientifique

L’atteinte de troubles musculosquelettiques (TMS) parmi les travailleurs et travailleuses au Québec était récemment estimée à 732 000 cas (Stock et al., 2014). Ces TMS sont associés aux activités professionnelles impliquant des efforts physiques prolongés, intenses et/ou répétitifs, telles que des tâches d’assemblage, de manutention, d’aide à la personne ou encore de maintien de posture prolongée sur un poste de travail. Les membres supérieurs, qui représentaient 30,1 % des cas de TMS déclarés et acceptés au Québec de 1998 à 2007 (Michel et al., 2010), sont les plus touchés après le dos. Plus particulièrement, l’épaule figure comme l’articulation …

The Journal Of Undergraduate Research: 2019

The Journal of Undergraduate Research

This is the complete issue of the South Dakota State University Journal of Undergraduate Research, Volume 17.

Internet Of Things Based Wireless Sensor Network And Advanced Machine Learning Models For Precision Agriculture, Ahmed El-Magrous

Electronic Theses and Dissertations

Recent studies assumed that the world population would reach 10.3 billion by 2070. This will require more land for housing; simultaneously resulting in a loss of land for agricultural purposes. However, the new generations also need food, and the lack of new agrarian land is a critical reason that leads researchers and producers to improve daily agriculture practices by using precision agriculture concepts and technologies to increase yield and crop quality. This work represents the design, development, and testing of a customizable and cost-effective Weather-Soil Sensor Station (W-SSS) for use in Precision Agriculture based on high accuracy sensors, wireless communication, …

Using Systems Archetypes And Generic Structures To Support Water Resource Management Studies : The Case Of Cropping Pattern Change In New Mexico State, Babak Bahaddin

Legacy Theses & Dissertations (2009 - 2024)

A wide range of managerial problems are similar in nature, and yet they continuously appear in different forms and in different geographical locations. Compared to other sciences, it seems that in the field of management, managers have a hard time facing these similar problems. Part of this issues is caused by the extreme complexity of the systems and another part is caused by the lack of a universal language with which managers can communicate their lessons. This dissertation offers a set of tools that have been previously manufactured in systems science, and more specifically in System Dynamics.

The Brain's Large-Scale Electrophysiological Signals : Fundamental Attributes And Neurosurgical Applications, Mohammad Amin N/A Nourmohammadi

Legacy Theses & Dissertations (2009 - 2024)

Brain’s electrophysiological signals are most certainly the ultimate source for studying the sophisticated neural network inside our cranium. The unparalleled complexity of these biosignalsis the quintessential manifestation of their underlying complicated neurophysiological processes. Studying brain signals on the cellular level provides valuable information regarding the brain’s electrophysiology on the small-scale. However, it is the remarkable network in the large-scale that gives rise to the brain’s extraordinary attributes and exceptional capabilities—perception, cognition, computation, and consciousness are all the emergent byproducts of the dynamic neuronal interactions on the network level. In this sense, the large-scale electrophysiological signals, recorded from the surface of …

Statistical Methods To Unravel Cortical Mechanism Of Perception And Response To Auditory Stimuli, Ladan Moheimanian

Legacy Theses & Dissertations (2009 - 2024)

Behavioral responses to auditory stimuli have a critical role in our daily activities. The perception of these stimuli and the generation of appropriate behavioral responses requires the interaction of thousands of neurons in the auditory-motor pathways in the brain. Despite their importance, still many neuroscientific questions about these interactions are remained to be answered. This may result from the limitations of brain recordings as well as statistical methods to analyze brain recordings. In this dissertation, I investigated underlying mechanisms that govern these neural interactions in the auditory-motor pathways using novel statistical techniques applied to the brain recordings from the surface …

Development Of Dual Functional Dna/Rna Nanostructures For Drug Delivery, Vibhav Amit Valsangkar

Legacy Theses & Dissertations (2009 - 2024)

In addition to the traditional biochemical functions, DNA and RNA have been increasingly studied as building blocks for the formation of various 2D and 3D nanostructures. DNA has emerged as a versatile building block for programmable self-assembly. DNA-based nanostructures have been widely applied in biosensing, bioimaging, drug delivery, molecular computation and macromolecular scaffolding. A variety of strategies have been developed to functionalize these nanostructures. The major advantage is that DNA is a very stable molecule and its base-pairing properties can be easily utilized to control and program the formation of desired nanostructures. In addition, some of these DNA/RNA nanostructures have …

Mcnair Scholars Research Journal 2020, Michelle X. Bui, Chris Mcdaniels, Jacqueline Bazea-Rubio, Curtis Kizer-Pugh, Eman Alasadi, Ahmed Gure, Helen Hernandez, Archit Jaiswal, Dallas Johnson, Ephrem Kejela, Heather Lake, Charlene Mandimutsira, Paola A. Puentes, Anthony Sajik Ruiz, Richard D. Schargel, Thao-My Tran, Omar Yanouri

McNair Scholars Research Journal-Archive

No abstract provided.

Early Detection Of Asthma Via Enhanced Resolution Of Small Airways Using Ultra-Low Frequency Impulse Oscillometry, Christopher M. Aguilar

Open Access Theses & Dissertations

Examination of lung function for diagnosis and monitoring of diseases such as chronic obstructive pulmonary disease (COPD) and asthma can be performed with a variety of pulmonary function testing (PFT) techniques. The most commonly prescribed of these procedures are spirometry and whole-body plethysmography. However, these active participation tests depend on forced breathing maneuvers, may be physically exhausting, might not produce enough information, and are susceptible to being subject-dependent. In contrast, passive PFT approaches such as the forced oscillation technique (FOT) and the impulse oscillometry system (IOS) are increasingly being utilized for measuring lung mechanics because they require only minimal participation, …

Atv Dynamics And Pediatric Rider Safety, James T. Auxier Ii

Theses and Dissertations--Biomedical Engineering

It has been observed through numerous academic and governmental agency studies that pediatric all-terrain vehicle ridership carries significant risk of injury and death. While no doubt valuable to safety, the post-hoc approach employed in these studies does little to explain the why and how behind the risk factors. Furthermore, there has been no prolonged, widespread, organized, and concerted effort to reconstruct and catalog the details and causes of the large (20,000+) number of ATV-related injuries that occur each year as has been done for road-based motor vehicle accidents. This dissertation takes the opposite approach from a meta-analysis and instead examines …

Fluvial Sediment Organic Matter Degradation Identified With Elemental And Isotopic Fate During Laboratory Incubation, Brenden Riddle

Theses and Dissertations--Civil Engineering

Fluvial sediment is well recognized as a critical factor in both carbon and nutrient budgets within stream systems. However, we find very few studies of reactivity and isotope enrichment for stream water from agricultural and urban streams and the class of substrate known as fluvial sediment organic matter. This study investigated the hypothesis that fluvial sediment is subject to degradation even though many previous studies have considered this class of substrate generally inert. Therefore we qualify that elemental and isotopic signatures of fluvial sediment organic matter should be considered potentially non-conservative when used in tracer studies. Methods applied to this …

Correlating The Physicochemical Properties Of Magnesium Stearate With Tablet Dissolution And Lubrication, Julie L. Calahan

Theses and Dissertations--Pharmacy

Magnesium stearate (MgSt) is the most commonly used pharmaceutical excipient and is present in over half the tablet formulations on the market. In spite of its popularity as an effective lubricant, it has been repeatedly recognized that there is significant variability between MgSt samples, which can cause inconsistent lubrication between batches of MgSt. The hypothesis of this research is that the batch-to-batch variability in tablet lubrication and dissolution observed in tablet formulations containing different MgSt samples can be correlated with differences in MgSt physicochemical properties (fatty acid salt composition, crystal hydrate form, particle size and surface area). Developing correlations between …

Ecosystem Of Bagged Grain Stored Under Naturally Ventilated Warehouse: Analysis And Modelling, Michael Ayodele Omodara

Theses and Dissertations--Biosystems and Agricultural Engineering

Grain in Africa and indeed most developing parts of the world are stored in polypropylene or jute bags arranged in stacks of varied dimensions in naturally ventilated warehouses. This practice is, however, associated with high postharvest losses due to poor temperature and moisture management during storage. This constitutes a major economic and food security challenge in these countries. Therefore, this study characterizes changes in moisture content and temperature occurring in a stack of bagged corn by determining the permeability of bag materials that influence moisture transfer and developing a mathematical model of heat and mass transfer which incorporates the unique …