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Full-Text Articles in Mechanical Engineering

Dynamic Thermal Model Development Of Direct Methanol Fuel Cell, Mohammad Biswas, Tabbi Wilberforce Jan 2023

Dynamic Thermal Model Development Of Direct Methanol Fuel Cell, Mohammad Biswas, Tabbi Wilberforce

Mechanical Engineering Faculty Publications and Presentations

Direct methanol fuel cell (DMFC) is fueled with liquid methanol coupled with air to produce power at reasonably lower operational conditions while resulting in by-products of carbon dioxide and water, which is more environmentally friendly. Due to the complexity associated with the performance of direct methanol fuel cell, the application of artificial neural network (ANN) can significantly predict the characteristic performance of the cells. Nevertheless, limited studies have delved into the exploration of artificial neural network in the prediction of the transient characteristics of direct methanol fuel cells. The current study however presents a detailed investigation into the prediction of …


Static And Dynamic Analysis Of A Bistable Frequency Up-Converter Piezoelectric Energy Harvester, Mohammad Atmeh, Alwathiqbellah Ibrahim, Abdallah Ramini Jan 2023

Static And Dynamic Analysis Of A Bistable Frequency Up-Converter Piezoelectric Energy Harvester, Mohammad Atmeh, Alwathiqbellah Ibrahim, Abdallah Ramini

Mechanical Engineering Faculty Publications and Presentations

Using energy harvesting to convert ambient vibrations efficiently to electrical energy has become a worthy concept in recent years. Nevertheless, the low frequencies of the ambient vibrations cannot be effectively converted to power using traditional harvesters. Therefore, a frequency up-conversion harvester is presented to convert the low-frequency vibrations to high-frequency vibrations utilizing magnetic coupling. The presented harvester consists of a low-frequency beam (LFB) and a high-frequency beam (HFB) with identical tip magnets facing each other at the same polarity. The HFB, fully covered by a piezoelectric strip, is utilized for voltage generation. The dynamic behavior of the system and the …


A Study Into Proton Exchange Membrane Fuel Cell Power And Voltage Prediction Using Artificial Neural Network, Tabbi Wilberforce, Mohammad Biswas Oct 2022

A Study Into Proton Exchange Membrane Fuel Cell Power And Voltage Prediction Using Artificial Neural Network, Tabbi Wilberforce, Mohammad Biswas

Mechanical Engineering Faculty Publications and Presentations

Polymer Electrolyte Membrane fuel cell (PEMFC) uses hydrogen as fuel to generate electricity and by-product water at relatively low operating temperatures, which is environmentally friendly. Since PEMFC performance characteristics are inherently nonlinear and related, predicting the best performance for the different operating conditions is essential to improve the system's efficiency. Thus, modeling using artificial neural networks (ANN) to predict its performance can significantly improve the capabilities of handling multi-variable nonlinear performance of the PEMFC. This paper predicts the electrical performance of a PEMFC stack under various operating conditions. The four input terms for the 5 W PEMFC include anode and …


Dehumidification Performance Of A Variable Speed Heat Pump And A Single Speed Heat Pump With And Without Dehumidification Capabilities In A Warm And Humid Climate, Koukouni P. Kone, Nelson Fumo Oct 2022

Dehumidification Performance Of A Variable Speed Heat Pump And A Single Speed Heat Pump With And Without Dehumidification Capabilities In A Warm And Humid Climate, Koukouni P. Kone, Nelson Fumo

Mechanical Engineering Faculty Publications and Presentations

Conventional air conditioning systems in houses respond to thermal loads by means of controlling dry-bulb temperature through the thermostat. As part of the process to control temperature, dehumidification is also provided. However, as houses are becoming more efficient, supplemental dehumidification is often necessary for homes located in hot and humid climates to control relative humidity intentionally. This study compared the dehumidification performance of a residential air conditioning system working in three operations modes to emulate three different systems: a system with a variable speed mode, a single-speed system with an enhanced dehumidification mode, and a single-speed system operating in a …


Power And Voltage Modelling Of A Proton-Exchange Membrane Fuel Cell Using Artificial Neural Networks, Tabbi Wilberforce, Mohammad Biswas, Abdelnasir Omran Aug 2022

Power And Voltage Modelling Of A Proton-Exchange Membrane Fuel Cell Using Artificial Neural Networks, Tabbi Wilberforce, Mohammad Biswas, Abdelnasir Omran

Mechanical Engineering Faculty Publications and Presentations

A proton exchange membrane fuel cell (PEMFC) is a more environmentally friendly alternative to deliver electric power in various applications, including in the transportation industry. As PEMFC performance characteristics are inherently nonlinear and involved, the prediction of the performance in a given application for different operating conditions is important in order to optimize the efficiency of the system. Thus, modelling using artificial neural networks (ANNs) to predict its performance can significantly improve the capabilities of handling the multi-variable nonlinear performance of the PEMFC. However, further investigation is needed to develop a dynamic model using ANNs to predict the transient behavior …


Incorporation Of Torsion Springs In A Knee Exoskeleton For Stance Phase Correction Of Crouch Gait, Katy Baker Bumbard, Harold Herrington, Chung-Hyun Goh, Alwathiqbellah Ibrahim Jul 2022

Incorporation Of Torsion Springs In A Knee Exoskeleton For Stance Phase Correction Of Crouch Gait, Katy Baker Bumbard, Harold Herrington, Chung-Hyun Goh, Alwathiqbellah Ibrahim

Mechanical Engineering Faculty Publications and Presentations

Crouch gait is a motor complication that is commonly associated with cerebral palsy, spastic diplegia, stroke, and motor-neurological pathologies, broadly defined as knee flexion in excess of 20° in the gait cycle. Uncorrected crouch gait results in fatigue, joint degradation, and loss of ambulation. Torsion springs have been used in cycling to store energy in the knee flexion to reduce fatigue in the quadriceps during knee extension. SolidWorks was used to design a passive exoskeleton for the knee, incorporating torsion springs of stiffnesses 20,000 N/mm and 30,000 N/mm at the knee joint, to correct four different crouch gaits. OpenSim was …


A Review Of Ductless Mini Split Hvac System, Manoj Bhandari, Nelson Fumo May 2022

A Review Of Ductless Mini Split Hvac System, Manoj Bhandari, Nelson Fumo

Mechanical Engineering Faculty Publications and Presentations

Although a conventional ducted system is the HVAC system used by most of the household in the United States, the ductless mini split system is gaining popularity in the market. The ductless mini split heat pump system consists of an outdoor unit that provides hot or cold refrigerant into a house to one or more wall- or ceiling-mounted indoor fan units. Ductless mini splits can have several advantages over conventional systems including improved thermal comfort, performance, and energy saving. There have been several studies and research in the field of ductless mini splits to learn about the advantages and disadvantages …


Characterizing The Effect Of Adding Boron Nitride Nanotubes On The Mechanical Properties Of Electrospun Polymer Nanocomposite Microfibers Mesh, Ohood Alsmairat, Nael Barakat Feb 2022

Characterizing The Effect Of Adding Boron Nitride Nanotubes On The Mechanical Properties Of Electrospun Polymer Nanocomposite Microfibers Mesh, Ohood Alsmairat, Nael Barakat

Mechanical Engineering Faculty Publications and Presentations

Electrospun fibrous meshes have a variety of applications such as filtration, drug delivery, energy storage, and engineered tissues due to their high surface area to mass ratio. Therefore, understanding the mechanical properties of these continuously evolving meshes is critical to expand and improve their performance. In this study, the effect of adding Boron Nitride Nanotube (BNNT) to Polymethylmethacrylate (PMMA) composite meshes on the mechanical properties of the polymer is studied. Electrospinning is used to fabricate microfiber meshes of PMMA and BNNT-PMMA. The fabricated meshes are tested experimentally with a uniaxial tensile tester. In addition, a theoretical model is introduced to …


Using Artificial Neural Network And Fuzzy Inference System Based Prediction To Improve Failure Mode And Effects Analysis: A Case Study Of The Busbars Production, Saeed Na’Amnh, Muath Bani Salim, István Husti, Miklós Daróczi Aug 2021

Using Artificial Neural Network And Fuzzy Inference System Based Prediction To Improve Failure Mode And Effects Analysis: A Case Study Of The Busbars Production, Saeed Na’Amnh, Muath Bani Salim, István Husti, Miklós Daróczi

Mechanical Engineering Faculty Publications and Presentations

Nowadays, Busbars have been extensively used in electrical vehicle industry. Therefore, improving the risk assessment for the production could help to screen the associated failure and take necessary actions to minimize the risk. In this research, a fuzzy inference system (FIS) and artificial neural network (ANN) were used to avoid the shortcomings of the classical method by creating new models for risk assessment with higher accuracy. A dataset includes 58 samples are used to create the models. Mamdani fuzzy model and ANN model were developed using MATLAB software. The results showed that the proposed models give a higher level of …


Non Uniform Rational B-Splines And Lagrange Approximations For Time-Harmonic Acoustic Scattering: Accuracy And Absorbing Boundary Conditions, S.M. Dsouza, T. Khajah, X. Antoine, S.P.A. Bordas, S. Natarajan Apr 2021

Non Uniform Rational B-Splines And Lagrange Approximations For Time-Harmonic Acoustic Scattering: Accuracy And Absorbing Boundary Conditions, S.M. Dsouza, T. Khajah, X. Antoine, S.P.A. Bordas, S. Natarajan

Mechanical Engineering Faculty Publications and Presentations

The paper aims to evaluate the performance of the Lagrange-based finite element method and the non-uniform rational B-splines isogeometric analysis of time-harmonic acoustic exterior scattering problems using high-order local absorbing boundary conditions, in particular based on the Karp's and Wilcox's far-field expansions. The analysis of accuracy and convergence of both methods is achieved by observing the effect of the order of the approximating polynomial, the number of degrees of freedom, the wave number, and the absorbing boundary conditions tuning parameters. It is concluded that, regardless of the polynomial order, IGA provides a higher accuracy per degree of freedom compared to …


Triboelectric Energy Harvester With Large Bandwidth Under Harmonic And Random Excitations, Alwathiqbellah Ibrahim, Abdallah Ramini, Shahrzad Towfighian Nov 2020

Triboelectric Energy Harvester With Large Bandwidth Under Harmonic And Random Excitations, Alwathiqbellah Ibrahim, Abdallah Ramini, Shahrzad Towfighian

Mechanical Engineering Faculty Publications and Presentations

This paper investigates an approach to impact vibration energy harvesting using a triboelectric mechanism under harmonic and random excitation. The harvester consists of a clamped–clamped beam with a stiff plate in the middle to realize the impact electrification process when subjected to external vibrations. The harvester uses stiffening in the clamped–clamped beam introduced by the impact between two triboelectric layers to increase the frequency bandwidth. A piecewise theoretical model is used to model the harvester for two scenarios of motions, before and after impact. The harvester is tested experimentally under different harmonic excitation to validate the theoretical model. The outcomes …


Thermal And Physico-Mechanical Characterizations Of Thromboresistant Polyurethane Films, Aaron C. Wilson, Shih-Feng Chou, Roberto Lozano, Jonathan Y. Chen, Pierre F. Neuenschwander Aug 2019

Thermal And Physico-Mechanical Characterizations Of Thromboresistant Polyurethane Films, Aaron C. Wilson, Shih-Feng Chou, Roberto Lozano, Jonathan Y. Chen, Pierre F. Neuenschwander

Mechanical Engineering Faculty Publications and Presentations

Hemocompatibility remains a challenge for injectable and/or implantable medical devices, and thromboresistant coatings appear to be one of the most attractive methods to down-regulate the unwanted enzymatic reactions that promote the formation of blood clots. Among all polymeric materials, polyurethanes (PUs) are a class of biomaterials with excellent biocompatibility and bioinertness that are suitable for the use of thromboresistant coatings. In this work, we investigated the thermal and physico-mechanical behaviors of ester-based and ether-based PU films for potential uses in thromboresistant coatings. Our results show that poly(ester urethane) and poly(ether urethane) films exhibited characteristic peaks corresponding to their molecular configurations. …


A Fuzzy Based Model For Standardized Sustainability Assessment Of Photovoltaic Cells, Muath Bani Salim, Dervis Emre Demirocak, Nael Barakat Dec 2018

A Fuzzy Based Model For Standardized Sustainability Assessment Of Photovoltaic Cells, Muath Bani Salim, Dervis Emre Demirocak, Nael Barakat

Mechanical Engineering Faculty Publications and Presentations

In this paper, a new environmental sustainability indicator (ESI) is proposed to evaluate photovoltaic (PV) cells utilizing Life Cycle Analysis (LCA) principles. The proposed indicator is based on a model that employs a fuzzy logic algorithm to combine multiple factors, usually used in multiple LCAs, and produce results allowing a comprehensive interpretation of LCA phase sub-results leading to standardized comparisons of various PV cells. Such comparisons would be essential for policymakers and PV cell manufacturers and users, as they allow for fair assessment of the environmental sustainability of a particular type of PV with multiple factors. The output of the …


Nanostructure-Enabled And Macromolecule-Grafted Surfaces For Biomedical Applications, Madeline Small, Addison Faglie, Alexandra J. Craig, Martha Pieper, Vivian E. Fernand Narcisse, Pierre F. Neuenschwander, Shih-Feng Chou May 2018

Nanostructure-Enabled And Macromolecule-Grafted Surfaces For Biomedical Applications, Madeline Small, Addison Faglie, Alexandra J. Craig, Martha Pieper, Vivian E. Fernand Narcisse, Pierre F. Neuenschwander, Shih-Feng Chou

Mechanical Engineering Faculty Publications and Presentations

Advances in nanotechnology and nanomaterials have enabled the development of functional biomaterials with surface properties that reduce the rate of the device rejection in injectable and implantable biomaterials. In addition, the surface of biomaterials can be functionalized with macromolecules for stimuli-responsive purposes to improve the efficacy and effectiveness in drug release applications. Furthermore, macromolecule-grafted surfaces exhibit a hierarchical nanostructure that mimics nanotextured surfaces for the promotion of cellular responses in tissue engineering. Owing to these unique properties, this review focuses on the grafting of macromolecules on the surfaces of various biomaterials (e.g., films, fibers, hydrogels, and etc.) to create nanostructure-enabled …


Electrospun Fibers As A Dressing Material For Drug And Biological Agent Delivery In Wound Healing Applications, Mulugeta Gizaw, Jeffrey Thompson, Addison Faglie, Shih-Yu L Lee, Pierre Neunenschwander, Shih-Feng Chou Jan 2018

Electrospun Fibers As A Dressing Material For Drug And Biological Agent Delivery In Wound Healing Applications, Mulugeta Gizaw, Jeffrey Thompson, Addison Faglie, Shih-Yu L Lee, Pierre Neunenschwander, Shih-Feng Chou

Mechanical Engineering Faculty Publications and Presentations

Wound healing is a complex tissue regeneration process that promotes the growth of new tissue to provide the body with the necessary barrier from the outside environment. In the class of non-healing wounds, diabetic wounds, and ulcers, dressing materials that are available clinically (e.g., gels and creams) have demonstrated only a slow improvement with current available technologies. Among all available current technologies, electrospun fibers exhibit several characteristics that may provide novel replacement dressing materials for the above-mentioned wounds. Therefore, in this review, we focus on recent achievements in electrospun drug-eluting fibers for wound healing applications. In particular, we review drug …


A Review Of Injectable And Implantable Biomaterials For Treatment And Repair Of Soft Tissues In Wound Healing, Shih-Feng Chou, Simi Gunaseelan, Mhd Hussam Hijazi Kiellani, Venkata Vamsi Krishna Thottempudi, Pierre Neuenschwander, Huarong Nie Jun 2017

A Review Of Injectable And Implantable Biomaterials For Treatment And Repair Of Soft Tissues In Wound Healing, Shih-Feng Chou, Simi Gunaseelan, Mhd Hussam Hijazi Kiellani, Venkata Vamsi Krishna Thottempudi, Pierre Neuenschwander, Huarong Nie

Mechanical Engineering Faculty Publications and Presentations

The two major topics concerning the development of nanomedicine are drug delivery and tissue engineering.With the advance in nanotechnology, scientists and engineers now have the ability to fabricate functional drug carriers and/or biomaterials that deliver and release drugs locally as well as promote tissue regeneration. In this short review, we address the use of nanotechnology in the fabrication of biomaterials (i.e., nanoparticles and nanofibers) and their therapeutic function in wound healing as dressing materials. Furthermore, we discuss the use of surface nanofeatures to regulate cell adhesion, migration, proliferation, and differentiation, which is a crucial step in wound healing associated with …


In Vivo Pharmacological Evaluations Of Pilocarpine-Loaded Antioxidant-Functionalized Biodegradable Thermogels In Glaucomatous Rabbits, Shih-Feng Chou, Li-Jyuan Luo, Jui-Yang Lai Feb 2017

In Vivo Pharmacological Evaluations Of Pilocarpine-Loaded Antioxidant-Functionalized Biodegradable Thermogels In Glaucomatous Rabbits, Shih-Feng Chou, Li-Jyuan Luo, Jui-Yang Lai

Mechanical Engineering Faculty Publications and Presentations

To alleviate oxidative stress-induced ocular hypertension, grafting of antioxidant molecules to drug carriers enables a dual-function mechanism to effectively treat glaucomatous intraocular pressure (IOP) dysregulation. Providing potential application for intracameral administration of antiglaucoma medications, this study, for the first time, aims to examine in vivo pharmacological efficacy of pilocarpine-loaded antioxidant-functionalized biodegradable thermogels in glaucomatous rabbits. A series of gallic acid (GA)-grafted gelatin-g-poly(N-isopropylacrylamide) (GN) polymers were synthesized via redox reactions at 20-50 °C. Our results showed that raising redox radical initiation reaction temperature maximizes GA grafting level, antioxidant activity, and water content at 40 °C. Meanwhile, increase in overall hydrophilicity of …


Small-Scale And Large-Scale Interventions To Improve [State] Student’S College Readiness, Virgil U. Pierce, Javier A. Kypuros, Shirley J. Mills Jun 2016

Small-Scale And Large-Scale Interventions To Improve [State] Student’S College Readiness, Virgil U. Pierce, Javier A. Kypuros, Shirley J. Mills

Mechanical Engineering Faculty Publications and Presentations

We are conducting two interventions aimed at improving entering students’ college readiness and mathematics placement. The small-scale intervention is aimed at working with students on the university campus. Students who are targeted have high school course work indicating that they have experience in Calculus or Pre-Calculus courses, but whose placement tests have not indicated they are ready for Calculus. At our institution this is a significant number of students and the goal of the project is to develop methods to address and accelerate students in this category. The course design, to take advantage of the students’ prior experience, emphasizes practice …


Development And Use Of The Energy Model Of A Research And Demonstration House With Advanced Design Features, Nelson Fumo, Vicente Bortone Jun 2016

Development And Use Of The Energy Model Of A Research And Demonstration House With Advanced Design Features, Nelson Fumo, Vicente Bortone

Mechanical Engineering Faculty Publications and Presentations

Advances on manufacturing processes and the use of new materials are increasing the efficiency and reducing the cost of energy efficient and renewable energy technologies to a point that their deployment will reach desired levels for the sake of energy security and environmental concerns. Along these advances, the demonstration of the cost-effectiveness of this technology is vital to educate people and promote deployment of these technologies. In this sense, at the University of Texas at Tyler, two research and demonstration houses were built. House #1 is a conventional design with some advanced features, and House #2 has more advanced design …


Sensitivity Analysis Of Common Input Parameters In Tools For Modeling Energy In Homes, Sheikh Tijan Tabban, Nelson Fumo Jun 2016

Sensitivity Analysis Of Common Input Parameters In Tools For Modeling Energy In Homes, Sheikh Tijan Tabban, Nelson Fumo

Mechanical Engineering Faculty Publications and Presentations

Energy models of buildings can be developed and used for analysis of energy consumption. A model offers the opportunity to simulate a building under specific conditions for analysis of energy efficiency measures or optimum design. Due to the great amount of information needed to develop an energy model of a building, the number of inputs can be reduced by making variable the most relevant input parameters and making the others to take common or standard values. In this study, an analysis of input parameters required by computational tools to estimate energy consumption in homes was done in two stages. In …


Utilizing An Emporium Course Design To Improve Calculus Readiness Of Engineering Students, Virgil U. Pierce, Javier A. Kypuros Jun 2015

Utilizing An Emporium Course Design To Improve Calculus Readiness Of Engineering Students, Virgil U. Pierce, Javier A. Kypuros

Mechanical Engineering Faculty Publications and Presentations

The intervention has targeted incoming students in Engineering and Computer Sciencedegrees. Participating students were selected who had a record of participation in Pre-Calculus classes in high school, but who had not demonstrated their readiness to take Calcu-lus, as measured by placement tests and existing credit. The course design uses an emporiummethod, specifically the Assessment and Learning in Knowledge Spaces (ALEKS) software,in a computer lab to deliver to students an intensive program of mathematical practice andexploration. The course design is meant to take advantage of students? existing knowledge,rewarding them for it in fact, and focus them on specific Algebra and Trigonometry …


Investigating The Potential Of Residential District Energy, Nelson Fumo, Vicente Bortone, Juan Zambrano, Aleyani Zambrano Jun 2014

Investigating The Potential Of Residential District Energy, Nelson Fumo, Vicente Bortone, Juan Zambrano, Aleyani Zambrano

Mechanical Engineering Faculty Publications and Presentations

The International District Energy Association claims that district energy: improve energy efficiency, enhanced environmental protection, fuel flexibility, ease of operation and maintenance, reliability, comfort and convenience for customers, decreased life-cycle costs, decreased building capital costs, and improved architectural design flexibility. In the U.S.A. most of the installed district energy systems are found in buildings such as colleges and universities, healthcare installations, government installations, airports and community utilities, as well as industry. All these applications have proved the advantages of district energy. However, for typical neighborhoods in small cities in the U.S.A., the dispersion of the dwelling imposes additional challenges to …


An Analysis Of Sound Exposure In A University Instrumental Music Rehearsal Venue, Joe Farmer, Nelson Fumo, Michael Thrasher Nov 2013

An Analysis Of Sound Exposure In A University Instrumental Music Rehearsal Venue, Joe Farmer, Nelson Fumo, Michael Thrasher

Mechanical Engineering Faculty Publications and Presentations

The purpose of this study is to collect and analyze the sound load exposure of a population of university music students participating in instrumental music ensemble rehearsals


Metodología Para La Aplicación De Un Plan De Mantenimiento Centrado En La Confiabilidad Con Criterios De Administración De Energía En Equipos De Aire Acondicionado Tipo Compacto, A. Zambrano, J. Zambrano, Nelson Fumo Jul 2012

Metodología Para La Aplicación De Un Plan De Mantenimiento Centrado En La Confiabilidad Con Criterios De Administración De Energía En Equipos De Aire Acondicionado Tipo Compacto, A. Zambrano, J. Zambrano, Nelson Fumo

Mechanical Engineering Faculty Publications and Presentations

A través del tiempo han evolucionado filosofías con procedimientos muy diferentes con intereses que pueden llegar a ser comunes en cuanto a su objetivo terminal, es así como se presenta la administración de energía y el mantenimiento centrado en la confiabilidad. Estas teorías buscan en común el adecuado funcionamiento de los sistemas, lograr un uso sostenible con el ambiente a través de un estudio detallado de la causas y efectos de los problemas y averías presentadas. La propuesta presentada constituye un punto intermedio entre ambas filosofías donde se indica la afectación que puede presentar el mal funcionamiento de un equipo …


Propuesta De Implementación De Energía Solar Fotovoltaica En Instalaciones Pesqueras En Venezuela, Juan Zambrano, Aleyani Zambrano, Buitrago Franklin, Nelson Fumo Jan 2012

Propuesta De Implementación De Energía Solar Fotovoltaica En Instalaciones Pesqueras En Venezuela, Juan Zambrano, Aleyani Zambrano, Buitrago Franklin, Nelson Fumo

Mechanical Engineering Faculty Publications and Presentations

Los sistemas de obtención de energía por medios renovables han venido creciendo de manera interesante en los últimos años debido a los altos precios de la energía y a la limitada disponibilidad del recurso, en el caso de los sistemas de energía solar fotovoltaica (FV), a nivel mundial se ha demostrado gran potencial en proyectos de electrificación rural para aplicaciones domésticas y labores agropecuarias. Venezuela por su posición geográfica privilegiada, cuenta con un gran potencial energético solar, se tiene garantizado un 85% de la incidencia solar estable durante todo el día, incluso en períodos de verano se alcanzan hasta 8 …


Guided Discovery Modules For Statics And Dynamics, Javier A. Kypuros, Horacio Vazquez, Constantine Tarawneh, Robert R. Wrinkle Jun 2011

Guided Discovery Modules For Statics And Dynamics, Javier A. Kypuros, Horacio Vazquez, Constantine Tarawneh, Robert R. Wrinkle

Mechanical Engineering Faculty Publications and Presentations

Students struggle to conceptualize Engineering Mechanics (i.e. Newtonian Physics, Statics, and Dynamics) fundamentals because they cannot successfully visualize the effects of external loads on physical systems and/or do not intuitively comprehend the static or dynamic response. Traditionally, Engineering Mechanics courses like Statics and Dynamics have been primarily lecture-based with little experimentation. The authors contend that through the use of inquirybased, multimodal activities, lower-division engineering students can more effectively interpret Engineering Mechanics concepts. Instructors must place emphasis on engendering properly conceived engineering intuition and contextualizing concepts and fundamentals. The authors hypothesize that by utilizing often simple, multimodal, inquiry-based exercises, instructors can …


Breaking Away From The Laboratory: Using Lean-Computing Technology To Merge Theory-Based Learning And Experimentation, Thomas Connolly, Kathy Schmidt, Javier Kypuros Jun 2009

Breaking Away From The Laboratory: Using Lean-Computing Technology To Merge Theory-Based Learning And Experimentation, Thomas Connolly, Kathy Schmidt, Javier Kypuros

Mechanical Engineering Faculty Publications and Presentations

This ongoing research involves a departure from traditional laboratory instructional practices in that it seeks to forge a closer connection between lecture-based and laboratory courses. As such, the authors have devised a program that: (1) relinquishes a degree of control to students by providing them some flexibility in determining the subject of their experiments and in the development of experimental procedures and protocols, (2) uses mobile experimentation as a powerful and flexible tool in lecture-based coursework, and (3) expands the concept of the “laboratory” to include virtually everything outside of it. A pilot program in mobile experimentation and data acquisition …


Collaborative Experimentation And Simulation: A Pathway To Improving Student Conceptualization Of The Essentials Of System Dynamics And Control Theory, Javier A. Kypuros, Thomas J. Connolly Jun 2005

Collaborative Experimentation And Simulation: A Pathway To Improving Student Conceptualization Of The Essentials Of System Dynamics And Control Theory, Javier A. Kypuros, Thomas J. Connolly

Mechanical Engineering Faculty Publications and Presentations

The overarching goal of this research is to improve conceptualization of System Dynamics and Controls concepts by incorporating a Web-facilitated curriculum to enable intercampus collaboration and remotely-accessible or virtual systems. This approach will complement lecture-based curricula and will strongly enhance students’ conceptualization and exposure to System Dynamics and Controls fundamentals by providing less restricted exposure to a variety of systems that encompass the more important Dynamic Systems concepts. The plan involves the development of a System Dynamics Concepts Inventory and the implementation and assessment of three Web-enabled laboratory formats: (1) inter-campus collaborative experimentation, (2) remotely-accessible experiments, and (3) virtual system …