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Full-Text Articles in Engineering
Designing Biomaterials Using Mussel Adhesive Chemistry, Bruce P. Lee
Designing Biomaterials Using Mussel Adhesive Chemistry, Bruce P. Lee
TechTalks
Marine mussels secrete adhesive proteins that enable them to anchor to surfaces under water. We are exploiting chemistry utilized by mussels to design bioadhesives for tissue repair and wound healing, smart biomaterials for on-demand antipathogenic applications, and smart adhesives that can be turned on and off with externally applied stimuli.
Incorporating Student Reflection Into Engineering Courses, Nancy Barr
Incorporating Student Reflection Into Engineering Courses, Nancy Barr
TechTalks
Critical reflection as students move through their disciplinary curriculum is one way to cultivate capacity for critical thinking. By embedding opportunities for critical reflection in disciplinary courses, educators can combine aspects of writing theory, metacognitive learning, and critical pedagogy to help students begin to frame how they will apply their skills and talents to problems effecting diverse populations. The new undergraduate ME curriculum combines applied learning and project-based learning methods in a series of four ME Practice courses. Technical communication instruction is also embedded in these courses, and the “capstone” of each course is a reflective essay. By responding to …
Space Mining Is Almost Here!, Paul Van Susant
Space Mining Is Almost Here!, Paul Van Susant
TechTalks
When going to the Moon and Mars for extended stays with humans it is required to minimize mass by "living off the land" as soon as possible. Mining local resources and using them to produce consumables and construct simple structures can leverage launch mass to the surface of those bodies. In addition, asteroid mining will be able to provide rocket fuel to further spur economic development in CIS-Lunar space and further open up solar system activities. I am working on mining on Mars and the Moon as well as construction using local rocks.
New Concepts In Evolutionary Algorithms For Systems Architecture Optimization, Ossama Abdelkhalik
New Concepts In Evolutionary Algorithms For Systems Architecture Optimization, Ossama Abdelkhalik
TechTalks
This talk will present recent developments in evolutionary algorithms that focus on the systems architecture optimization. One challenge in systems optimization is the variable number of design variables. Three new concepts will be presented in this talk that enable evolutionary algorithms to handle this type of problems more efficiently. The first is the biologically inspired concept of Hidden Genes that implements tags to cover/uncover genes in the variables' code, which enable handling variable number of variables in evolutionary algorithms. The second concept is a structured chromosome approach that transcripts the variables in a multi-layer code as opposed to the standard …
Engineering Decision Making Under Uncertainties, Snehamoy Chatterjee
Engineering Decision Making Under Uncertainties, Snehamoy Chatterjee
TechTalks
Uncertainty is an inherent component of any engineering problem. Uncertainty comes at different stages of an engineering project with different level of complexities. Decision making by neglecting uncertainty may leads to an incorrect solution for a project. Our research focuses on identification and quantification of different sources of uncertainness, and bringing uncertainties within the decision making framework. We are developing algorithms for uncertainty evaluation of spatial and temporal data by integrating multiple source and multiple scale data types, and stochastic optimization models to take into account multiple objectives and constraints. We are applying our research on mining, geology, and geo-hydrology …
Biomechanics And Imaging, Jingfeng Jiang
Biomechanics And Imaging, Jingfeng Jiang
TechTalks
From the perspective of biomechanics, my research is multidisciplinary, bridging the gap between physiology/biology and quantitative sciences. Currently, the applications are on cancer detection and differentiation, therapeutic monitoring, staging liver fibrosis, risk assessment of aneurysm rupture, and more.
Professional Development, Outreach, And Technology Awareness With The Mobile Lab, Jeremy Worm
Professional Development, Outreach, And Technology Awareness With The Mobile Lab, Jeremy Worm
TechTalks
The Mobile Lab is a one of a kind mobile event facility operated by the Advanced Power Systems Research Center (APS LABS). The Mobile Lab travels the country providing hands-on Professional Development short courses, STEM Outreach, and as a venue for increasing awareness of new technologies. The Mobile Lab consists of a classroom, two full-functional powertrain test cells, a fleet of over 25 vehicles, and a chassis dynamometer. The configurability of the Mobile Lab enables support of virtually any technical or non-technical short course or outreach. The Mobile Lab commands attention, generating large crowds at conferences, expos, and community events, …
Food-Energy-Water Nexus Approaches To Climate Change Mitigation And Adaptation, David Watkins
Food-Energy-Water Nexus Approaches To Climate Change Mitigation And Adaptation, David Watkins
TechTalks
The Food-Energy-Water (FEW) Nexus is defined by the complex interactions and interdependencies of basic resource provisioning systems that tend to be managed and regulated independently of one another. Coupled with maintaining ecosystem services, enhancing food, energy, and water security for the planet’s growing population represents a grand research challenge. With a focus on ecosystem services affected by climate change, two interdisciplinary FEW Nexus projects are briefly presented -- one informing decision making at the household level and the other informing water resources planning and stakeholder consensus at the regional level. At the household level, environmental impact models help to identify …
Implantable Sensors For Regenerative Medicine, Keat Ghee Ong
Implantable Sensors For Regenerative Medicine, Keat Ghee Ong
TechTalks
In vivo, real-time measurement of local environmental parameters such as strain, pressure, temperature, pH, oxygen tension and specific biomarkers can be valuable for regenerative medicine research and therapies. Wireless implantable sensors are an attractive approach for certain regenerative medicine applications due to its relative simplicity and low cost. Presented here are such two implantable sensors. The first sensor is based on a miniature wireless sensor network that can digitize physical and chemical parameters and continuously stream measurements to a nearby receiver via a 2-way communication protocol. With the incorporation of a strain gauge, this sensor platform was applied to record …
Model-Driven Design Of Materials, Gregory M. Odegard
Model-Driven Design Of Materials, Gregory M. Odegard
TechTalks
Thomas Edison once said “I have not failed. I've just found 10,000 ways that won't work.” The Edisonian approach to materials development has been the gold standard for most of human history. However, advances in computational speeds and modeling techniques over the last couple of decades have enabled new model-driven approaches to materials development, as manifested in the Integrated Computational Materials Engineering (ICME) and Materials Genome Initiative (MGI) efforts. By designing and simulating new materials in a computational environment, we can dramatically cut down on the cost and time associated with the Edisonian approach to material development. At Michigan Tech, …
Biodegradable Zinc Vascular Implant Materials, Jeremy Goldman
Biodegradable Zinc Vascular Implant Materials, Jeremy Goldman
TechTalks
Bioabsorbable metal stents are being developed to mitigate the long-term side effects associated with corrosion-resistant stents. A decade-long research with iron (Fe)- and magnesium (Mg)-based stent materials has concluded with little success. Fe produces a voluminous, retained oxide product in the arterial wall, whereas Mg and its alloys corrode too rapidly. A breakthrough in the field of biodegradable metallic stents was made in 2013 in our research team (Drs. Goldman – Biomedical Engineering and Drelich – Materials Science and Engineering) with the introduction of zinc (Zn) and its alloys, which are free of the flaws observed for Fe- and Mg-based …
Autonomy At The End Of The Earth, Jeremy P. Bos
Autonomy At The End Of The Earth, Jeremy P. Bos
TechTalks
Despite press accounts to the contrary, significant challenges remain in the development of true autonomous vehicles. Though these challenges are many and varied my research focuses on two areas. First, operation of autonomous vehicles in inclement weather with emphasis on ice and snow. The other focus is on developing functionally safe mobility solutions. In this talk, I will briefly describe some approaches I am developing to solving these challenges.
Multi-Sensor Fusion On Mobile Platforms, Timothy C. Havens
Multi-Sensor Fusion On Mobile Platforms, Timothy C. Havens
TechTalks
An important goal for many mobile platforms---terrestrial, aquatic, or airborne---is reliable, accurate, and on-time sensing of the world around them. The PRIME Lab has been investigating multi-sensor fusion for many applications, including explosive hazard detection and infrastructure inspection, from terrestrial vehicles and unmanned aerial vehicles (UAVs). New developments in multi-sensor fusion using radars, imaging sensors, and LIDAR will be discussed that encompass advancements from novel signal processing approaches for mobile ground-penetrating radar to more theoretical approaches for optimal fusion of measurements from multi-modal sensors. This talk will explore the area of sensor-fusion both from a practical, application-focused standpoint and also …
Persistent Operation Of Mobile Robots, Nina Mahmoudian
Persistent Operation Of Mobile Robots, Nina Mahmoudian
TechTalks
Success of numerous unmanned mobile missions in space, air, ground, and water is measured by the ability of the robots to usefully operate for extended time in dynamic and uncertain environments. This talk will provide an overview of the recent progress towards performing autonomous long-term missions. The approach includes task and energy routing scheduling, efficient path planning and coordination, and low-infrastructure platforms. The goal is to provide practical solutions by lowering deployment and operating costs, while also increasing efficiency, endurance and persistence during complex missions like disaster responses and long-term science discoveries.
Mobility And Safety: Do Drivers Behave As Engineers Want Them To Behave?, Pasi T. Lautala
Mobility And Safety: Do Drivers Behave As Engineers Want Them To Behave?, Pasi T. Lautala
TechTalks
As engineers, we thrive to provide environment for safe mobility through proper geometric designs, regulations, guidance and warnings. However, safe movements are still heavily dependent on the individual behavior and reactions by the drivers/users (at least for now). Traditionally, understanding drivers’ behavior has been a difficult topic to research, but today we have increasing number of data and tools available to improve that understanding. One of the tools that has recently become available is the Naturalistic Driving Study (NDS) database that provides an opportunity to investigate the behavior of almost 3,500 instrumented vehicles and drivers in six different regions of …
Doe Apra-E Nextcar Program On Connected And Automated Vehicles In Collaboration With Gm, Jeffrey D. Naber
Doe Apra-E Nextcar Program On Connected And Automated Vehicles In Collaboration With Gm, Jeffrey D. Naber
TechTalks
Within the $3.5M ARPA-e NEXTCAR program, Michigan Tech in collaboration with GM will development and demonstrate on a fleet of eight 2017 Chevrolet Volts and a mobile connected cloud computing center, a Vehicle Dynamics and Powertrain (VD&PT) model-based predictive controller (MPC) encompassing a real-time VD&PT dynamic model leveraging vehicle conductivity (V2X) with real-time traffic modeling and predictive speed horizons and eco-routing. The objective is to achieve a minimum of 20% reduction in energy consumption (electric + fuel) through the first ever real-time implementation and connection of route planning, powertrain energy management MPC algorithms. Connectivity data from vehicles, infrastructure, GPS, traffic …
Batteries In-N-Out: Multiple Lives Mobility, Lucia Gauchia
Batteries In-N-Out: Multiple Lives Mobility, Lucia Gauchia
TechTalks
As batteries become more extended across all applications, battery second life or re-purposing is gaining traction. This adds another degree of mobility to batteries. Not only do they move with the person/mobile/vehicle during operation, but also after their life in that application ends. Then they can be re-purposed for other less demanding applications, such as residential or buildings. As batteries move in and out of applications as their performance degrades, they show an interesting mobility and life cycle analysis which presents better environmental solutions, lower costs and new opportunities.
Mechanics Of Soft Polymers, Trisha Sain
Mechanics Of Soft Polymers, Trisha Sain
TechTalks
Understanding the mechanics and physics of soft polymers are essential due to their widespread applications across disciplines. (e.g.-composite materials, bio mechanics, soft robotics etc.) The soft polymers in general inherent lightweight, high stretchability, extreme viscous damping and stimuli responsive behavior. Development of computational modeling strategy to predict their constitutive response, stimuli responsive behavior is indeed helpful for designing novel multifunctional soft composites, artificial mussels/tissues. In this talk I will briefly emphasize how we are developing multiscale-multiphysics based modeling methods for soft polymers to understand their macroscopic deformation mechanism, failure and other mechanical properties. The long term goal is to develop …
Ignimbrites To Batholiths, Chad Deering
Ignimbrites To Batholiths, Chad Deering
TechTalks
Ignimbrites sample large magma reservoirs in the Earth’s upper crust, sometimes digging deep enough to link the volcanic realm with the plutonic world. Integrating textural, petrological, geochemical, and geochronological information on such deposits with geophysical signals suggest incremental growth and evolution of subvolcanic magma bodies that are dominated by high crystallinity mush zones, but sometimes remain sufficiently liquid to erupt. The eruptible upper portions are either extracted melt from the mush and constitute only a small volumetric fraction of the vertically extensive mushy batholithic magma body. The high-flux, ignimbrite flare-up phases are typically preceded by waxing magmatism that prime the …
Stem Cell And Tissue Engineering Research, Feng Zhao
Stem Cell And Tissue Engineering Research, Feng Zhao
TechTalks
My research focuses on stem cell and tissue engineering. By combining stem cell biology and engineering tools, the Zhao Lab seeks strategies to biofabricate completely biological tissues to regenerate or repair damaged tissues or organs. The function of engineered tissues is being strengthened by recapitulating the in vivo environment of natural tissues. The underlying mechanism is being explored through investigating the interaction of cells with environmental factors such as topographical cues, biophysical forces, and oxygen tensions. We also prompt stem cell research at Michigan Tech to meet the progress and advance of the outside scientific society. Training opportunities are consistently …
Aps Labs (Advanced Power Systems Research Center), Jeffrey D. Naber
Aps Labs (Advanced Power Systems Research Center), Jeffrey D. Naber
TechTalks
Our mission is to promote & facilitate education and research in clean, efficient, and sustainable power and powertrain systems. The center was established in 2007 and in 2014 the 55,000 sq ft APSRC building located near the airport was denoted as a MTU core facility. Our new research contracts in FY2016 were over $2.5M. Our partners include automotive OEMs: GM, Ford, FCA, Toyota, Honda; Commercial OEMs: Cummins, Deere, Detroit, Isuzu, MHI; Suppliers: Delphi, Denso, Borg Warner, Hitachi; and DOE Labs: ANL, ORNL, PNNL, SNL, & INL. We have seven staff to assist in educational and R&D programs and facilities to …
Electrospun Nanofibers As Neural Guidance Scaffolds, Michael Mullins
Electrospun Nanofibers As Neural Guidance Scaffolds, Michael Mullins
TechTalks
Highly-aligned electrospun PolyLactic-L-Acid (PLLA) nanofibers have been shown to promote and direct the axonal outgrowth of Central Nervous System (CNS) neurons. Aligned fibers deposited on 3D printed stages have been tested in vitro using chick Dorsal Root Ganglia (DRG's), and show highly directed neurite growth with improved extension. In vivo studies on rats indicate that similar results are attained, with substantial regrowth of fully transected spinal cords. Extension of these studies to new generation of coaxial nanofiber scaffolds which allow electrical stimulation are in progress.
Two-Phase Transport In Proton Exchange Membrane Fuel Cells, Kazuya Tajiri
Two-Phase Transport In Proton Exchange Membrane Fuel Cells, Kazuya Tajiri
TechTalks
In Multiscale Transport Process Laboratory our research is focused on the experimental and computational analysis of transport phenomena in electrochemical devices and propulsion systems. In this talk our research activity on proton exchange membrane fuel cells (PEMFCs) for automotive application will be explained. Water management is one of the most critical issues in PEMFCs. The water generated in catalyst layer as a product of the electrochemical reaction needs to be removed through porous media by diffusion if it’s vapor, or by capillarity in case of liquid. In flow channels, the liquid water is removed primarily by inertial force of the …
Solid State Sound: A "Hot" Topic, Andrew Barnard
Solid State Sound: A "Hot" Topic, Andrew Barnard
TechTalks
As seen with the latest iPhone 7 release, traditional audio components can now be a limiting factor in technology design. What if we could make a loudspeaker with no moving parts and virtually no weight? Carbon nanotube loudspeakers are such devices. They create sound using heat oscillations, as opposed to a moving diaphragm. They have the thickness of only a handful of carbon atoms, are flexible and stretchable. In this TechTalk I’ll discuss the carbon nanotube loudspeaker and the design challenges in maturing this intriguing technology.
Rapid Metal Design, Paul G. Sanders
Rapid Metal Design, Paul G. Sanders
TechTalks
Computational material design tools have advanced so that custom materials for specific applications can be designed and manufactured. In the case of metals, my team designs aluminum, iron, nickel, and copper (more to come) alloys using Thermo-Calc with Bayesian optimization. We design microstructures to deliver properties such as strength, conductivity, and corrosion resistance. Custom tailored materials are now practical solutions to engineering challenges, and materials engineers work on multi-disciplinary teams to deliver integrated, enhanced product designs.
Point-Of-Care Microfluidic Device For Blood Typing, Hector Moncada-Hernandez
Point-Of-Care Microfluidic Device For Blood Typing, Hector Moncada-Hernandez
TechTalks
There has been increasing efforts to translate laboratory blood tests analysis into portable, reliable, and cheap miniaturized devices. Electrokinetic-based microfluidic devices provide a new approach to blood tests with a simple infrastructure for the manipulation of cells. Previous studies show red blood cells’ (RBC) dielectrophoretic response changes based on the different ABO-Rh antigens present in the cells membrane. In this research, an alternate-current electric signal with a frequency sweep (0.1 – 1 MHz) is applied through an array of electrodes to generate non-uniform electric fields and induce dielectrophoretic forces on RBC from all eight blood types. The RBC’s response to …
Wearable Electronics, Human-Centered Monitoring, Ye Sarah Sun
Wearable Electronics, Human-Centered Monitoring, Ye Sarah Sun
TechTalks
Non-contact solution in wearable electronics: A conventional clinical system requires the use of wet electrodes that are in contact with skin using conductive gel to acquire physiological signals. Those systems can acquire high quality signals but may not be feasible for a long-term purpose due to the skin irritation and allergic contact dermatitis. The emerging of human-centered monitoring calls for alternative solutions. Recent technological advances enable capacitive measurement that can acquire signals through cloth or even with an air gap in wearable condition. In this TechTalk I will introduce the non-contact solution in wearable electronics.