Open Access. Powered by Scholars. Published by Universities.®

Engineering Commons

Open Access. Powered by Scholars. Published by Universities.®

132,482 Full-Text Articles 153,193 Authors 44,573,586 Downloads 283 Institutions

All Articles in Engineering

Faceted Search

132,482 full-text articles. Page 2 of 3668.

Gnygrens18.Pdf, Garrett Nygren 2018 University of Miami

Gnygrens18.Pdf, Garrett Nygren

Garrett Nygren

The finite element method was used to evaluate microstructural strengthening and toughening effects in nanoparticulate reinforced polymer composites (nanocomposites) and in short aligned discontinuous fiber reinforced polymer composites. Nanoparticulate reinforcement is a well-known method of polymer toughening which can greatly expand the range of engineering applications for polymers. However, the mechanisms of nanoparticulate toughening, as well as complementary sub-micron fracture processes, are not well understood. Short, aligned, discontinuous carbon fiber reinforced thermoplastics show promise as a versatile, inexpensive material system with favorable manufacturability, but failure of the associated morphologies is also not yet well explored.
In nanocomposites, two microstructural effects ...


Sbaigs18.Pdf, Sarfaraz Niaz Ali Baig 2018 University of Miami

Sbaigs18.Pdf, Sarfaraz Niaz Ali Baig

Sarfaraz Baig

No abstract provided.


It Takes A Village: The Role Of Emic And Etic Adaptive Strengths In The Persistence Of Black Men In Engineering Graduate Programs, Brian A. Burt, Krystal L. Williams, Gordon J. M. Palmer 2018 Iowa State University

It Takes A Village: The Role Of Emic And Etic Adaptive Strengths In The Persistence Of Black Men In Engineering Graduate Programs, Brian A. Burt, Krystal L. Williams, Gordon J. M. Palmer

Education Publications

Black men, underrepresented in engineering, constitute a missing segment of the population who could contribute to the global knowledge economy. To address this national concern, stakeholders need additional research on strategies that aid in Black men’s persistence. This study explores the experiences of 30 Black men in engineering graduate programs. Three factors are identified as helping them persist from year to year, and in many cases through completion of the doctorate: the role of family, spirituality and faith-based community, and undergraduate mentors. The article concludes with implications for future research and professional practice that may improve the experiences of ...


Initial Testing Of A Pixelated Silicon Detector Prototype In Proton Therapy, Andrew J. Wroe, Grant McAuley, Anthony Teran, Jeannie Hsiu Ding Wong, Marco Petasecca, Michael L. F Lerch, James M. Slater, Anatoly B. Rosenfeld 2018 University of Wollongong

Initial Testing Of A Pixelated Silicon Detector Prototype In Proton Therapy, Andrew J. Wroe, Grant Mcauley, Anthony Teran, Jeannie Hsiu Ding Wong, Marco Petasecca, Michael L. F Lerch, James M. Slater, Anatoly B. Rosenfeld

James Slater, MD

As technology continues to develop, external beam radiation therapy is being employed, with increased conformity, to treat smaller targets. As this occurs, the dosimetry methods and tools employed to quantify these fields for treatment also have to evolve to provide increased spatial resolution. The team at the University of Wollongong has developed a pixelated silicon detector prototype known as the dose magnifying glass (DMG) for real-time small-field metrology. This device has been tested in photon fields and IMRT. The purpose of this work was to conduct the initial performance tests with proton radiation, using beam energies and modulations typically associated ...


Adsorption Kinetics Of Pb(Ii) And Zn(Ii) Ions Unto Carbonized Groundnut Shells And Maize Cobs, Leke Luter, Aboi Julius, Henry T. Dekaa, B. A. Ikyenge, Ande Sesugh, Monday Uchenna Okoronkwo 2018 Missouri University of Science and Technology

Adsorption Kinetics Of Pb(Ii) And Zn(Ii) Ions Unto Carbonized Groundnut Shells And Maize Cobs, Leke Luter, Aboi Julius, Henry T. Dekaa, B. A. Ikyenge, Ande Sesugh, Monday Uchenna Okoronkwo

Monday Uchenna Okoronkwo

Maize cobs and groundnut shell adsorbents from agricultural by-products were carbonized and investigated for adsorption of two selected metals, Lead (Pb II) and Zinc (Zn II) from aqueous solutions of these metals. Kinetic studies of the adsorption processes were investigated employing Elovich and the intraparticle diffussion models. The results showed that, the adsorption capacities of these comparatively cheaper adsorbents and their efficiency for the removal of Pb(II) and Zn(II) ions from aqueous solution present them suitable for use in place of the costly commercial activated carbons.


Eco-Efficient Preplaced Recycled Aggregate Concrete Incorporation Recycles Tire Waste Rubber Granules And Steel Wire Fibre Reinforcement, Saud A. Alfayez 2018 The University of Western Ontario

Eco-Efficient Preplaced Recycled Aggregate Concrete Incorporation Recycles Tire Waste Rubber Granules And Steel Wire Fibre Reinforcement, Saud A. Alfayez

Electronic Thesis and Dissertation Repository

With increasing world population and urbanization, the depletion of natural resources and generation of waste materials is becoming a considerable challenge. As the number of humans has exceeded 7 billion people, there are about 1.1 billion vehicles on the road, with 1.7 billion new tires produced and over 1 billion waste tires generated each year. In the USA, it was estimated in 2011 that 10% of scrap tires was being recycled into new products, and over 50% is being used for energy recovery, while the rest is being discarded into landfills or disposed. The proportion of tires disposed ...


Quadrotor Swarm Arena (Quasar) Development Of A Swarm Control Testbed, Shane T. Stebler, William MacKunis 2018 Embry-Riddle Aeronautical University

Quadrotor Swarm Arena (Quasar) Development Of A Swarm Control Testbed, Shane T. Stebler, William Mackunis

Beyond: Undergraduate Research Journal

Swarm control systems are increasingly popular in the robotics industry and academia due to their many potential applications. The goal of the Quadrotor Swarm Arena (QuaSAr) project is to construct a quadrotor swarm control testbed to provide researchers with the tools needed to experimentally investigate this emerging science. This testbed is equipped with a motion capture system, test control station, and numerous quadrotor UAVs. MATLAB-Simulink is utilized for control law development, data processing, and test control. This configuration allows researchers to test developing control law in a 'plug and play' manner as control development and test control are all completed ...


Hydrodynamics Of An Anguilliform Swimming Motion Using Morison’S Equation, Naga Sasi Devarakonda 2018 University of New Orleans

Hydrodynamics Of An Anguilliform Swimming Motion Using Morison’S Equation, Naga Sasi Devarakonda

University of New Orleans Theses and Dissertations

In this study, the hydrodynamic performance of anguilliform swimming motion is computed using Morison’s equation. This method was shown to predict the servo motor torques well. The anguilliform swimming motion is sinusoidal with increasing amplitude from head to tail. A “wakeless” swimming motion proposed by Vorus and Taravella (2011) with zero net circulation is considered.

This method is compared to the existing slender body theory and is validated with reference to the experimental results of NEELBOT-1.1 (Potts, 2015). The results for the study indicates that self-propulsion speed of the motion is independent of the oscillating tail amplitude at ...


Causal Loop Development Activity, Ali Mirchi 2018 Utah State University

Causal Loop Development Activity, Ali Mirchi

All ECSTATIC Materials

Students will work in groups to develop a causal loop diagram (CLD) to illustrate the structure and expected behavior of the fictional water short state of Nevizonato facilitate qualitative discussion of expected outcomes of a proposed water management strategy. This activity requires familiarity with systems thinking and system dynamics modeling. CLDs are introduced as a fundamental systems thinking tool for conceptual modeling.


On-Chip Studies Of Magnetic Stimulation Effect On Single Neural Cell Viability And Proliferation On Glass And Nanoporous Surfaces, Xiangchen Che, Joseph Boldrey, Xiaojing Zhong, Shalini Unnikandam-Veettil, Ian C. Schneider, David C. Jiles, Long Que 2018 Iowa State University

On-Chip Studies Of Magnetic Stimulation Effect On Single Neural Cell Viability And Proliferation On Glass And Nanoporous Surfaces, Xiangchen Che, Joseph Boldrey, Xiaojing Zhong, Shalini Unnikandam-Veettil, Ian C. Schneider, David C. Jiles, Long Que

Chemical and Biological Engineering Publications

Transcranial magnetic stimulation (TMS) is a non-invasive neuromodulation technique, an FDA-approved treatment method for various neurological disorders such as depressive disorder, Parkinson’s disease, post-traumatic stress disorder, and migraine. However, information concerning the molecular/cellular-level mechanisms of neurons under magnetic simulation (MS), particularly at the single neural cell level, is still lacking, resulting in very little knowledge of the effects of MS on neural cells. In this paper, the effects of MS on the behaviors of neural cell N27 at the single-cell level on coverslip glass substrate and anodic aluminum oxide (AAO) nanoporous substrate are reported for the first time ...


Using Coupled Eulerian And Lagrangian Grids To Model Explosive Interactions With Buildings, Braden Lusk, William P. Schonberg, Jason Baird, Robert S. Woodley, Warren Noll 2018 Missouri University of Science and Technology

Using Coupled Eulerian And Lagrangian Grids To Model Explosive Interactions With Buildings, Braden Lusk, William P. Schonberg, Jason Baird, Robert S. Woodley, Warren Noll

Robert S. Woodley

This paper presents the development of a computational model that can be used to study the interactions between structures and detonating explosives contained within them. This model was developed as part of an effort to develop a rubble characterization model for use in AmmoSIM, an agent based urban tactical decision aid (UTDA) software for weapon-target pairing. The rubble pile created following the collapse of a building in a combat situation can significantly impact mission accomplishment, particularly in the area of movement and maneuver. The information provided by AmmoSIM will enable both platoon level and command center staff to make informed ...


Thermal Properties Of Spinel Based Solid Solutions, Kelley R. Wilkerson 2018 Missouri University of Science and Technology

Thermal Properties Of Spinel Based Solid Solutions, Kelley R. Wilkerson

Kelley R. Wilkerson

"Solid solution formation in spinel based systems proved to be a viable approach to decreasing thermal conductivity. Samples with systematically varied additions of MgGa₂O₄ to MgAl₂O₄ were prepared and thermal diffusivity was measured using the laser ash technique. Additionally, heat capacity was measured using differential scanning calorimetry and modeled for the MgAl₂O₄-MgGa₂O₄ system. At 200⁰C thermal conductivity decreased 24% with a 5 mol% addition of MgGa₂O₄ to the system. The solid solution continued to decrease the thermal conductivity by 13% up to 1000⁰C with 5 mol% addition. The decrease in thermal conductivity ultimately resulted in a decrease in heat flux ...


An Iot System For Converting Handwritten Text To Editable Format Via Gesture Recognition, Nidhi patel 2018 Kennesaw State University

An Iot System For Converting Handwritten Text To Editable Format Via Gesture Recognition, Nidhi Patel

Master of Science in Computer Science Theses

Evaluation of traditional classroom has led to electronic classroom i.e. e-learning. Growth of traditional classroom doesn’t stop at e-learning or distance learning. Next step to electronic classroom is a smart classroom. Most popular features of electronic classroom is capturing video/photos of lecture content and extracting handwriting for note-taking. Numerous techniques have been implemented in order to extract handwriting from video/photo of the lecture but still the deficiency of few techniques can be resolved, and which can turn electronic classroom into smart classroom.

In this thesis, we present a real-time IoT system to convert handwritten text into ...


نمرات نهایی.Pdf, mahdi abaszadeh 2018 Birjand of University

نمرات نهایی.Pdf, Mahdi Abaszadeh

mahdi abaszadeh

No abstract provided.


Self-Healing Control With Multifunctional Gate Drive Circuits For Power Converters, Peng Xiao, Ganesh K. Venayagamoorthy, Keith Corzine, Robert S. Woodley 2018 Missouri University of Science and Technology

Self-Healing Control With Multifunctional Gate Drive Circuits For Power Converters, Peng Xiao, Ganesh K. Venayagamoorthy, Keith Corzine, Robert S. Woodley

Robert S. Woodley

Many commercial and military transport systems have fault diagnostic functions implemented to help protect the device when a severe fault occurs. However, most present systems do not contain prognostics capability which would allow operators to observe an unhealthy system component in its pre- fault condition. In industry applications, scheduled downtime can result in considerable cost avoidance. The next technology step is self-healing system components which observe not only potential problems, but can also take steps to continue operation under abnormal conditions - whether due to long-term normal wear-and-tear or sudden combat damage. In this paper, current and voltage information using the ...


An Approach To Active Sensor Imaging, Askin Demirkol, Levent Acar, Robert S. Woodley 2018 Missouri University of Science and Technology

An Approach To Active Sensor Imaging, Askin Demirkol, Levent Acar, Robert S. Woodley

Robert S. Woodley

In this paper, an alternative Target Density Function (TDF) is proposed to image the radar targets in a dense target environment. It is obtained by considering a novel range and scanning angle plane different from the conventional methods. An alternative method is briefly proposed for smoothing the target density function by taking advantage of Walsh functions. Although the imaging is obtained via the phased array radars, the problem associated with beamforming in linear phased array radar system is bypassed in this new algorithm.


A Radar Sensing Algorithm By Gabor Theory, Askin Demirkol, Levent Acar, Robert S. Woodley 2018 Missouri University of Science and Technology

A Radar Sensing Algorithm By Gabor Theory, Askin Demirkol, Levent Acar, Robert S. Woodley

Robert S. Woodley

In this paper, an alternative Target Density Function( TDF) is proposed for narrowband radar model. This is achieved by estimating a new target density function by Gabor theory. It is shown how Gabor transform can be used to obtaining wideband target density function by transmitting a waveform which is a kernel for this transform. The windowing characteristics of this theory is plausible to reaching an accurate result. The presented wideband target density function is developed in a various manner different from the conventional methods.


An Investigation Of The Possibilities Of Room-Scale Wireless Power Transfer, Karuna Adhikari 2018 University of Texas at Tyler

An Investigation Of The Possibilities Of Room-Scale Wireless Power Transfer, Karuna Adhikari

Electrical Engineering Theses

Inspired by original work of Nikola Tesla in resonant inductive coupling, numerous investigations are going on making wireless power transfer (WPT) application an optimum choice for various fields. By implementing the concept of non-radiative magnetically-coupled resonant circuits, it has been found that wireless power transmission is achievable at room-scale. This thesis investigates various aspects of the possibilities of room-scale wireless power transfer. Firstly, following the background of WPT systems, MATLAB-coil design, calculation of mutual inductances and Excel-calculation of WPT system performance in multi-resonator systems design tools for WPT systems are discussed for estimating the performance of numerous WPT resonator networks ...


Development Of A Subsurface Landfill Fire Risk-Index, Samain Sabrin 2018 Rowan University

Development Of A Subsurface Landfill Fire Risk-Index, Samain Sabrin

Theses and Dissertations

Landfill subsurface fires create environmental hazards by emitting potentially dangerous particulates into the atmosphere and damaging liners, potentially contaminating surrounding soil and groundwater aquifers with leachate. Currently, the only means of detecting underground fires are physical tests. This paper is used to describe an index that can be employed to track fire risk across a landfill. The landfill parameters analyzed for fire risk susceptibility in Chapter 1 include residual nitrogen concentration, oxygen exceedance, methane concentration, carbon monoxide level, methane and carbon dioxide ratio and monitoring well temperature. Incorporating these factors, a landfill fire index ranging from 1 to 10 was ...


Impact Of Trace Element Ions And Fe2+ On Anaerobic Food Waste Digestion, Andisheh Yazdanpanah 2018 The University of Western Ontario

Impact Of Trace Element Ions And Fe2+ On Anaerobic Food Waste Digestion, Andisheh Yazdanpanah

Electronic Thesis and Dissertation Repository

In Canada, about $31 billion worth of food is wasted annually. This amount of food waste (FW) ends up in landfills where it is naturally broken down by bacteria and releases methane to the atmosphere, a powerful greenhouse gas (GHG) which is 21 times more harmful to the environment than carbon dioxide (CO2). This process can also be done in a controlled environment at wastewater treatment plants, in a process known as anaerobic digestion (AD). Diverting food waste from landfills to wastewater treatment facilities allows for the capture of the methane, which can be used as an energy source ...


Digital Commons powered by bepress