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See Through Batteries | Neil Dasgupta | MichEpedia
In order to better understand efficiency-reducing dendrites, the metal wire forming phenomenon that consumes electrolytes while new generation lithium metal batteries are charging, researchers have developed a visualization cell as a “window” to look inside the potentially explosive process. The research is described in the paper, "Dendrites and Pits: Untangling the Complex Behavior of Lithium Metal Anodes through Operando Video Microscopy", published in ACS Central Science, available at http://pubs.acs.org/doi/abs/10.1021/acscentsci.6b00260. For the first time, high resolution video is able to capture surface activity as the lithium metal battery cycles through while comparisons to the chemical changes can be made in real time. This may lead to the expansion of longer lasting, more powerful batteries for electric automobiles and longer power storage from our nation’s energy infrastructure. Neil Dasgupta is an assistant professor in the Department of Mechanical Engineering (http://me.engin.umich.edu/) at the University of Michigan and performs research at the intersection of nanotechnology, energy science, and manufacturing. His research goals is to develop scalable, low-cost techniques for the synthesis and assembly of nanostructures to address complex energy-related environmental challenges. Example applications include solar photovoltaics, artificial photosynthesis, catalysts, and batteries. His research is highly interdisciplinary, drawing from influences in mechanical engineering, materials science, electrical engineering, physics and chemistry (http://dasgupta.engin.umich.edu/). His Ph.D. in Mechanical Engineering is from Stanford University, 2011 Kevin Wood is a Postdoctoral Fellow with a research focus on Batteries, Fuel Cells and Electrochemistry. He received his PhD in Materials Science at the Colorado School of Mines (2014)
Просмотров: 232705 Michigan Engineering
Rowing: It's Good For Your Brain
The Michigan Men's Rowing Team, a club varsity sport at U-M, is an athletic team that attracts many engineering students. Close to 95% of the students on the team never rowed before college, and around 50% of the total team is made up of engineers. While it might seem out of place for engineering students to be so highly represented on the team, they see it as a perfect fit. For more information on the team: http://michiganrowing.org/
Просмотров: 89771 Michigan Engineering
Refreshable Braille Device
Reading a computer screen in Braille is a cumbersome process today. The visually impaired people who rely on the system of raised dots only have access to one line at a time. Beyond that, current systems don't translate charts or graphs. A team of researchers from Michigan Engineering and the School of Music, Theater and Dance are working on a solution. Their technology, which has been described as a leader in the field, relies on pneumatic use of liquid or air to shrink the mechanism and expand it so it can display more at once. Their goal is for it to display the equivalent of a page of Kindle text at once. ABOUT THE PROFESSOR Professor Sile O’Modhrain earned a BA in music from Trinity College in Dublin, Ireland, and a licentiate in piano teaching from Trinity College London. She holds an MS in music technology from the University of York, York, England, and a Ph.D. in computer-based music theory from Stanford University.Professor O'Modhrain has worked as a researcher and faculty member, both here and abroad, at the prestigious MIT Media Lab, Media Lab Europe, and at the Sonic Arts Research Center at Queen's University of Belfast. She has also worked for BBC Radio as an audio engineer and program producer. Her research focus is on haptics–touch and gesture–and its relationship to music performance and on the development of new interfaces for technology-enhanced instruments that extend the boundaries of musical expression. Also impressive is her combination of experience in many areas related to audio, psychoacoustics, computer music, cognition, and gestural control of music. Brent Gillespie is an associate professor of mechanical engineering with research interests in haptic interfaces and robotics. Prof. Gillespie obtained his undergraduate degree in Mechanical Engineering from the University of California, Davis and his MS and PhD from Stanford University. At Stanford he was associated both with the Center for Computer Research in Music and Acoustics (CCRMA) and the Dextrous Manipulation Laboratory. After his PhD, he spent three years as a postdoc at Northwestern University working in the Laboratory for Intelligent Machines (LIMS). Alexander Russomanno received a B.S. in Mechanical Engineering from the University of Virginia in 2012. He is currently a Ph.D. candidate in the Department of Mechanical Engineering at the University of Michigan, Ann Arbor. His research interests involve microfluidics, surface haptic interface design and human-machine interfaces.
Просмотров: 60250 Michigan Engineering
Liquids bounce off super-repellent surface
A nanoscale coating that's at least 95 percent air repels the broadest range of liquids of any material in its class, causing them to bounce off the treated surface, according to the University of Michigan engineering researchers who developed it. In addition to super stain-resistant clothes, the coating could lead to breathable garments to protect soldiers and scientists from chemicals and advanced waterproof paints that dramatically reduce drag on ships. In a demonstration, the surface repelled coffee, soy sauce and vegetable oil, as well as toxic hydrochloric and sulfuric acids that could burn skin. READ MORE: Story on Michigan Engineering website (http://www.engin.umich.edu/college/about/news/stories/2013/january/a-material-that-most-liquids-wont-wet) ABOUT THE PROFESSOR: Anish Tuteja (http://www-personal.umich.edu/~atuteja/PSI_group_at_UM.html) is an assistant professor of materials science and engineering, chemical engineering and macromolecular science and engineering. His current research focuses on using polymers to address some of the key challenges in the areas of renewable energy and environmental science.
Просмотров: 170779 Michigan Engineering
Engineering Faster Planes in WWII: Kelly Johnson, the P-38 and the P-80
Clarence "Kelly" Johnson (BSE AeroE ’32, MSE ’33) was a bold an innovative aircraft designer. One of his earlier planes, the Lockheed P-38 Lightning, echoes that description well. It's unique twin-boom and central nacelle (for the cockpit) design gave it great stability and maneuverability at higher speeds than other planes offered... Until it entered a steep dive. Then things went south, fast. Johnson worked through the P-38's difficulties in collaboration with the National Advisory Committee for Aeronautics (NACA, the predecessor to NASA), which led to a greater understanding of the aerodynamic challenges of high-speed flight. Johnson used this new knowledge in the design of his next plane, the Lockheed P-80 Shooting Star - America's first operational jet fighter. After watching, continue by reading the incredible story of how Johnson and his team developed the P-80 in only 143 days during the height of WWII, and created Skunk Works in the process: https://medium.com/@UMengineering/skunk-works-2403ed8bf74c#.h67fn4se2
Просмотров: 139429 Michigan Engineering
Listening to Solar Storms
This sonification of the recent solar storm activity turns data from two spacecraft into sound. It uses measurements from the NASA SOHO spacecraft and the University of Michigan's Fast Imaging Plasma Spectrometer (FIPS) on NASA's MESSENGER spacecraft at Mercury. ABOUT THE PROFESSOR: The creator is Robert Alexander (http://aoss.engin.umich.edu/people/rlalexan), a design science doctoral student at the University of Michigan and NASA fellow. U-M Solar Heliospheric Research Group (http://solar-heliospheric.engin.umich.edu/)
Просмотров: 81622 Michigan Engineering
Lightwave Valleytronics: Using Electron Momentum in 2-D Semiconductors
Researchers in Germany and at the University of Michigan have demonstrated how infrared laser pulses can shift electrons between two different momenta, or valley states, in a thin sheet of semiconductor. This could lead to conventional computers that are one million times faster and even quantum computers that can operate at room temperature. Mackillo Kira, a professor of electrical engineering and computer science at the University of Michigan, led the theory behind the research. Read more: https://news.engin.umich.edu/2018/05/light-could-make-semiconductor-computers-a-million-times-faster-or-even-go-quantum/ More from Kira’s lab: https://qstl.engin.umich.edu/
Просмотров: 15871 Michigan Engineering
Stretchable Conductors
Polyurethane studded with gold nanoparticles can conduct electricity even when stretched, Michigan engineers have discovered. This feat could pave the way for flexible electronics and gentler medical devices. The nanoparticles start out randomly arranged, but they drift into wire-like formations as the material is stretched. About the Professor: Nicholas Kotov (http://www.umkotov.com/) is the Joseph B. and Florence V. Cejka Professor of Engineering and a professor of chemical engineering (http://che.engin.umich.edu/), biomedical engineering (http://www.bme.umich.edu/), materials science and engineering (http://www.mse.engin.umich.edu/) and macromolecular science and engineering (http://macromolecular.umich.edu/) at the University of Michigan College of Engineering (http://www.engin.umich.edu/). His research interests include the 3D self-organization of nanoparticles and cells, and in using these principles to improve technologies and health care.
Просмотров: 15587 Michigan Engineering
FlexDex | A Revolutionary Surgical Tool
University of Michigan startup FlexDex Surgical’s first product—a simple, ergonomic and intuitive “needle driver” for stitching inside the body—has been used for the first time in a series of operations. FlexDex is an all-mechanical platform that mounts to the surgeon’s arm. It uses a unique engineering approach to enable the tip of the instrument to mimic the direction of movement of the surgeon’s hand. It was funded by the National Science Foundation. Mechanical Engineering Associate Professor Shorya Awtar (https://me-web2.engin.umich.edu/pub/directory/bio?uniqname=awtar) and Professor of Surgery James Geiger (http://surgery.med.umich.edu/pediatric/healthProviders/geiger.shtml), along with medical device entrepreneur Greg Bowles, co-founded FlexDex Surgical to translate this research into surgeon-friendly medical products (http://flexdex.com/).
Просмотров: 41085 Michigan Engineering
Victors for Michigan | Step Forward With Us | Michigan Engineering
This is our world. What becomes of it is up to us. Right now, the world is facing challenges, the likes of which it has never faced before. Engineers are the key to solving those challenges. Because we are engineers, we recognize that we have a responsibility. And because we are Michigan Engineers, we are ready to step up and tackle the world's greatest problems. Step forward with us as we strive to create breakthrough engineering solutions. Step forward and become a victor for engineering. Because this is our world - and our world needs victors. Learn more with the "Victors Experience": http://www.victors.engin.umich.edu
Просмотров: 22568 Michigan Engineering
Sirius: An open-source digital assistant
An open-source computing system you command with your voice like Apple’s Siri is designed to spark a new generation of “intelligent personal assistants” for wearables and other devices. It could also lead to much-needed advancements in the datacenter infrastructure to support them. Sirius, built by University of Michigan engineering researchers, is similar to Siri, Microsoft Cortana and Google Now – robust applications that accept voice instructions and questions, interpret them, and answer in spoken words. Sirius even uses many of the algorithms. But unlike its expensive and locked-down commercial counterparts, Sirius is free and can be customized. “Now the core technology is out of the bag, and we all have access to it,” said Jason Mars, an assistant professor of computer science and engineering. “Instead of making an app to run on the Apple Watch, for example, maybe I could make my own watch. We’re very excited to see what the world comes together to build and learn with Sirius as a starting point.” Mars sees Sirius as an important platform for research into the development of next-generation warehouse computing. It gives researchers a testbed for studying how the datacenters that process voice-enabled queries should evolve to keep up with escalating pressure from wearable gadgets. Voice-enabled queries, the researchers found, can be more than 100 times more computationally intensive than a simple text web search. They calculated that if voice were to supplant text for web queries, datacenter infrastructure would need to grow by 165 times. ABOUT THE PROFESSOR Jason Mars is an Assistant Professor of Electrical Engineering and Computer Science. His research interests are cross-layer systems architectures for emerging applications, datacenter and warehouse-scale computer architecture, and hardware / software co-design.
Просмотров: 55422 Michigan Engineering
Icephobic Coating
University of Michigan researchers demonstrate a durable ice-repellent coating that could help keep everything from airplanes to ships, power lines and windshields ice-free. About the Professor: Anish Tuteja focused on using polymers to address some of the key challenges in the areas of renewable energy and environmental science. Particular areas of interest include Superoleophobic surfaces, Superhydrophobic Surfaces, Ice-Repellent Surfaces, Membranes, Polymer Nanocomposites, Thermoelectrics, Solar Cells, and Liquid-liquid Separations. http://www.engin.umich.edu/college/about/people/profiles/p-to-t/anish-tuteja
Просмотров: 45508 Michigan Engineering
This is Michigan Engineering
Want to know what Michigan Engineering is all about? Watch this quick video to get a hint. Shot on North and Central campuses, the video includes both diags and a trip down to the stadium. If you're an alum or a student or have visited campus, see how many locations you recognize. Let us know what you think we left out — we may work it into a future version. Go Blue! (Note: The credits for this video should indicate that "Joanna Millunchick" participated -- her name was presented incorrectly in the video).
Просмотров: 56936 Michigan Engineering
Michigan Engineering: Four Years in Four Minutes
In between the first class and the last exam, Michigan engineers go through a lot. At graduation, all of those memories come flooding back. The successes. The failures. The friendships. The hopes and fears of the class of 2015 accompany incredible time-lapse imagery. This video definitely passes the goose bump test. http://umicheng.in/15ClassSnap
Просмотров: 21321 Michigan Engineering
Rap in Review from Michigan Engineering
David C. Munson, Jr., Robert J. Vlasic Dean of Engineering at the University of Michigan, presents a "Rap in Review," with a look at some of the initiatives underway at the College of Engineering in 2012. For more information about MCubed, go to http://mcubed.umich.edu Stay connected with Michigan Engineering. Visit http://engin.umich.edu
Просмотров: 34396 Michigan Engineering
Greener Silica from Rice
Two U-M researchers turn useless waste from rice processing into the high-purity silica compounds that are used in everything from toothpaste to tires. The technique could eliminate millions of tons of CO2 emissions every year, and it’s 90 percent less expensive than the current method. Richard Laine is a professor of Materials Science and Engineering at the University of Michigan. His research interests include the synthesis and processing of inorganic and organometallic hybrid polymers and nano-oxide powders. Watch additional MichEpedia videos or join the discussion at http://www.engin.umich.edu/mconnex/michepedia
Просмотров: 12863 Michigan Engineering
The Return of the Holiday Rap: A Jedi's Chant
On a campus far, far away… So far you have to take a bus from Central Campus to get there. The wise old leader, Dean Obi Wan Munson, is reflecting on his time on campus and all we've accomplished. He looks to the future, when a new Jedi will take the reins and continue to lead Michigan Engineering to greatness. ----- David C. Munson, Jr is the Robert J. Vlasic Dean of Engineering at the University of Michigan College of Engineering. He is concluding his second term and tenth year as Dean in June 2016.
Просмотров: 33942 Michigan Engineering
Organic semiconductor breakthrough for cheaper, flexible solar cells
Leading optoelectronics researcher Stephen Forrest at the University of Michigan found a way to coax electrons to travel much further than was previously thought possible in the materials often used for organic solar cells: https://news.engin.umich.edu/2018/04/organic-solar-cells-reach-record-efficiency-benchmark-for-commercialization/ Watch more videos from Michigan Engineering: https://www.youtube.com/channel/michiganengineering The University of Michigan College of Engineering is one of the world’s top engineering schools. Michigan Engineering is home to 12 highly-ranked departments, and its research budget is among the largest of any public university. “I believe that ubiquitous solar power is the key to powering our constantly warming and increasingly crowded planet, and that means putting solar cells on everyday objects like building facades and windows,” Forrest said. “Technology like this could help us produce power in a way that’s inexpensive and nearly invisible. Read the paper: Centimetre-scale electron diffusion in photoactive organic heterostructures, Nature (2018): http://www.nature.com/articles/doi:10.1038/nature25148
Просмотров: 5892 Michigan Engineering
A better tool for minimally invasive surgery
U-M engineers, in collaboration with the UM Medical School, have developed a new affordable tool technology which will make performing minimally invasive surgery easier for surgeons. The tool, called FlexDex, acts as an extension of the surgeon's arm, allowing the doctor to control it in a natural and intuitive manner. Minimally invasive surgery, which is performed through tiny incisions on a patient's body, is preferred over traditional methods due to faster recovery times and less trauma to the patients' body. However, tools to perform this surgical method are limited to either expensive and high-functioning robots or cheaper, less-functional mechanical tools. U-M mechanical engineer Shorya Awtar and pediatric surgeon Dr. James Geiger hopes that making technology like this available will encourage the adoption of minimally invasive surgery by more doctors and will bring its benefits to a larger population of patients. About the Professor: Shorya Awtar (https://me-web2.engin.umich.edu/pub/directory/bio?uniqname=awtar) is an Associate Professor of Mechanical Engineering (http://me.engin.umich.edu/) at the University of Michigan College of Engineering (http://www.engin.umich.edu/). His research interests include precision engineering, mechatronics, flexure mechanisms, high-precision high-bandwidth motion systems for applications in nanometrology and nanomanufacturing, MEMS sensors and actuators and minimally invasive surgery.
Просмотров: 10628 Michigan Engineering
Ultra-High Performance Concrete | Sherif El-Tawil
High prices for stronger and more durable concrete – known as ultra high-performance concrete (UHPC) have kept it out of widespread use by local, state and federal governments. At the request of Michigan’s Department of Transportation (MDOT), University of Michigan Professor of Civil and Environmental Engineering Sherif El-Tawil has concocted a non-proprietary blend of UHPC that comes with a drastically-reduced cost. That concrete is currently in use on a bridge in St. Clair County, and the formula is being made available for free. A key ingredient in UHPC that is not in regular concrete is steel fibers. Isaya Miyata, a senior studying civil engineering, is among those who make sample batches of UHPC in a mixing lab on U-M’s North Campus. Because of the fibers, the UHPC created at U-M is still more expensive than regular concrete. But it represents a 70 percent price drop from the UHPC brands currently on the market. And as the cost of steel fibers drops with increasing demand, the cost of the U-M concrete would also fall. In addition to strength, El-Tawil’s research team is boosting concrete durability – a property measured in freeze-thaw cycles. Ordinary concrete tested in the lab showed deterioration at 28 freeze-thaw cycles. The team’s UHPC blend showed virtually no deterioration after 90 cycles.
Просмотров: 6260 Michigan Engineering
What if you could control your phone by squeezing it? Thanks to University of Michigan computer engineers, that’s a scenario you might one day experience. ForcePhone is software that allows any smartphone user to control their device with force and pressure. The technology works by borrowing two of a phone’s fundamental attributes – its microphone and speaker. The software sets the speaker to emit an inaudible tone at a frequency higher than 18 kHz, which is outside the range of human hearing. But the phone’s mic can still pick up the vibration caused by the sound. When a user presses on the screen or squeezes the phone’s body, that force changes the tone. The phone’s microphone can detect that, and the software translates any tone tweaks into commands. ABOUT THE PROFESSOR Yu-Chih Tung is a computer science PhD candidate at University of Michigan-Ann Arbor, advised by Prof. Kang G. Shin, the Kevin and Nancy O'Connor Professor of Computer Science and Professor of Electrical Engineering and Computer Science. His research interest is building mobile applications or security systems based on physical-layer signal processing. Yu-Chih received a master of science degree . from National Taiwan University in 2012. His current work has been published at top-ranked conferences such as ACM MobiCom or ACM CCS and is in the process of being commercialized.
Просмотров: 112519 Michigan Engineering
Batteries of the Future: Ch. 5 | BrownBag Learning
CHAPTER FIVE: Li-ion Batteries 101 - How does a lithium ion battery work? This chapter explains the motion within a lithium ion during which lithium moves back and forth between the anode and the cathode. ABOUT THE SERIES: What advancements in batteries are being made and how can these improvements impact the consumer market and the environment? Would a renaissance in electric vehicles have an impact on emissions, or would it simply displace the emissions from the back of the vehicles to the power plants in our backyard? And what are the mechanics behind how a lithium ion battery works? Don Siegel, an assistant professor of Mechanical Engineering at the University of Michigan, conducts this BrownBag Learning series where he discusses the challenges in developing consumer products that rely on batteries and the opportunities to improve them. ABOUT THE PROFESSOR: Don Siegel (https://me-web2.engin.umich.edu/pub/directory/bio?uniqname=djsiege ) is an assistant professor of Mechanical Engineering (http://me.engin.umich.edu/ ) at the University of Michigan College of Engineering. His primary research interests include the development of high-capacity materials and systems for energy storage applications; computational materials science; nanoscale chemistry and its impact on the mechanical properties of materials; thermodynamics and kinetics of phase transformations; multi-scale modeling; and integrated computational materials engineering. Siegel teaches Atomistic Computer Modeling of Materials at the University of Michigan, and works in the Energy Storage and Materials Simulation Lab (http://www-personal.umich.edu/~djsiege/Energy_Storage_Lab/ESMS_Lab_Home.html).
Просмотров: 19167 Michigan Engineering
MHacks Hackathon - Hackers at Michigan Engineering - University of Michigan
More than 500 students from the US and Canada descended on the University of Michigan campus for the largest student-run hackathon ever. The students spent 36 hours programming new web and mobile apps, learning from pros at Facebook and competing for $10,000 in prizes. The event was organized by student groups from Michigan Hackers and MPowered Entrepreneurship.
Просмотров: 19841 Michigan Engineering
Bendable Concrete
Concrete is the single-most utilized building material due to its moldability and low cost. But the concrete is brittle, causing it to break and shatter easily. U-M researchers have developed a bendable concrete to combat that problem. About the Professor: Victor Li (http://www.cee.umich.edu/people/faculty/Victor+C.+Li) is a Professor of Civil and Environmental Engineering (http://cee.engin.umich.edu/) at the University of Michigan College of Engineering. His research interests includes the design, processing and characterization of smart fiber reinforced cementitious composites, for protective and sustainable built environments. My research group engages in interdisciplinary research linking industrial ecology and structural health monitoring with bio-inspired materials design to enhance harmony between the built and the natural environment.
Просмотров: 23568 Michigan Engineering
Lithium Ion Batteries:  Why They Explode
Lithium ion batteries are all around us. In our homes, our cars, even on our person at nearly all times. And so when a cell phone, laptop, or car battery explodes it can rightfully be a cause for concern. However, there’s a lot that goes into the creation of any single lithium ion cell and even a small error at a given point in that process could lead to big problems during the battery’s life cycle. Greg Less, Michigan Engineering’s Battery User Facility’s Manager discusses not only why and how the lithium ion batteries that we all use so frequently might explode, but how researchers at the University of Michigan are trying to change the way batteries are made for a safer and more efficient future. ABOUT THE PROFESSOR Greg Less is the Senior Laboratory Manager at the UMEI Battery Fabrication and Characterization User Facility, responsible for the day-to-day operation of the laboratory. Greg received a doctorate in Chemistry from the University of Michigan. Prior to joining UMEI, he was a research scientist with battery companies T/J Technologies and A123 Systems.
Просмотров: 59015 Michigan Engineering
Shark-inspired hydropower turbine
A new turbine inspired by the mouth of the basking shark was recently tested at the University of Michigan's Marine Hydrodynamics Laboratory. It could potentially serve as a safer and more environmentally-friendly way to power remote research camps in Alaska, where U-M researchers involved in the North Slope Initiative go each spring to monitor the ecosystem. About the Professor: Guy Meadows is the director of the Marine Hydrodynamics Lab at teh University of Michigan College of Engineering.
Просмотров: 59484 Michigan Engineering
Purifying Water With Plasma
Michigan Engineering professor John Foster is working on a method to purify water with the fourth state of matter - plasma. Foster hopes his new technology, which produces reactive radicals that can attack organic contaminants such as pesticides and pharmaceuticals, will help solve a problem not currently being addressed in conventional treatment methods that rely on filtration and chlorine. Foster's technology, originally envisioned as a point-of-use system for underdeveloped countries, could be scaled up to a larger mechanism that would be implemented as a stage in the conventional treatment process. About the Professor: John Foster (http://www.engin.umich.edu/college/about/people/profiles/f-to-j/john-foster) is an Associate Professor of Nuclear Engineering and Radiological Sciences (http://www.engin.umich.edu/ners) at the University of Michigan College of Engineering (http://www.engin.umich.edu/). His research interests include low-temperature plasma science including the areas of propulsion plasmas, environmental plasmas, space and atmospheric plasma phenomena, energy conversion plasmas and processing plasmas.
Просмотров: 8955 Michigan Engineering
Super Concrete
High strength, high ductility concrete will make for a much more resilient constructing material which would be able to withstand the power of earthquakes and extreme loading much better than the concrete that is widely used today. The super concrete developed at the University of Michigan in collaboration with the US Army has a compressive strength of 160 MPa (about 2-3 times that of high strength concrete) together with a tensile ductility of over 3% (over 300 times that of high strength concrete)." About the Professor: Victor Li (http://ace-mrl.engin.umich.edu) is a Professor of Civil and Environmental Engineering (http://cee.engin.umich.edu/) at the Univ. of Michigan.
Просмотров: 12758 Michigan Engineering
World’s Smallest Computer
As computing devices progress toward smaller and more efficient designs, Michigan Engineers have taken the lead in millimeter sized units that can perform on many alternating platforms. Dennis Sylvester and David Blaauw, professors of UM’s Electrical Engineering and Computer Science, have developed units capable of harvesting solar power to utilize wireless communication, pressure and temperature sensors and even still image and video processing. The design of each computer is developed at Michigan under a team of post-graduate students under Sylvester and Blaauw’s supervision. Each unit is assembled in layers and is capable of being customized to a particular function. While testing has been developed to place these units on top of tumors inside cancer patients to determine the results of chemotherapy, the range of applications seem unlimited. Recently, as validation of the milestone these data gathering modules represent, samples of the team’s computers were featured at the Computer History Museum outside of Palo Alto, California. Future development of this technology is going to break down the size constriction even smaller. At a third of a millimeter, the hopes are these micro computers would be able to be placed inside biological cells to monitor and broadcast cellular activity. DENNIS SYLVESTER (http://web.eecs.umich.edu/~dennis/) and DAVID BLAAUW (http://blaauw.eecs.umich.edu/people.php?u=professor) are professors of Electrical Engineering and Computer Sciences (http://www.eecs.umich.edu/) at the University of Michigan College of Engineering (http://www.engin.umich.edu/).
Просмотров: 119030 Michigan Engineering
Algorithms for faster 3-D printing
Michigan Engineering researchers have developed filtered b-spline (FBS) algorithms to speed up consumer 3-D printers without sacrificing quality. The research was conducted in the Smart and Sustainable Automation Research Lab at the University of Michigan College of Engineering under associate professor of mechanical engineering Chinedum Okwudire. The research was led by PhD candidates Deokkyun Yoon and Molong Duan. http://s2a-lab.engin.umich.edu/ Read the story for more information: https://news.engin.umich.edu/2017/10/3d-printing-gets-a-turbo-boost-from-u-m-technology/
Просмотров: 30101 Michigan Engineering
Morphing Wing
Michigan Aerospace engineers are using new materials and techniques to allow airplane wings to flex and move more like bird wings. Instead of traditional flaps, they are designing wings that can morph based on an electrical inputs. These morphing wings are still in the developing stages but may open the doors to lighter weight aircraft that are more agile than traditional airplanes. When the Wright Brothers first flew more than 100 years ago, they utilized a twisting wing to stabilize their plane. As aircraft design became more heavy duty, that system became impossible. Rigid wings controlled by flaps have been the mainstay for modern aviation. Today Michigan engineers are revisiting the idea of the morphing wing using a multifunctional system of composite lightweight materials and integrated actuators. Dan Inmann, Professor and Department Chair of Aerospace Engineering predicts that morphing technology would first appear in unmanned drones and cargo vehicles. Even then, it may still be decades away. ABOUT THE PROFESSO: Dan Inman (http://www.engin.umich.edu/college/about/people/profiles/f-to-j/daniel-inman) is active in research involving smart materials and structures as applied to morphing aircraft, energy harvesting, structural health monitoring and clearance control in jet engines. He currently has projects in cube satellite actuators, electronic damping, avian inspired morphing aircraft and energy harvesting. Formerly he was the Director of the Center for Intelligent Material Systems and Structures and the G.R. Goodson Professor in the Department of Mechanical Engineering at Virginia Tech and the Brunel Chair in Intelligent Materials and Structures at the University of Bristol, UK. A former Department Chair of the Department of Mechanical and Aerospace Engineering, State University of New York at Buffalo, he has held adjunct positions in the Division of Applied Math at Brown University and in math at the University of Southern California. Since 1980, he has published 10 books (on vibration, energy harvesting, control, statics, and dynamics), eight software manuals, 20 book chapters, over 300 journal papers and 600 proceedings papers, given 61 keynote or plenary lectures, graduated 62 Ph.D. students and supervised more than 75 MS degrees.
Просмотров: 14591 Michigan Engineering
Cassie's Arrival | Michigan Robotics
Michigan Robotics’ latest member arrived last week in a black plastic case about two feet to a side, buried beneath a layer of foam cubes and crouched on a metal calibration stand. The latest model, dubbed Cassie Blue by the Michigan team, has control over two more joints in each leg – motors for hip rotation and at the ankle for extra stability. Not only do these give Cassie the potential to be better at the independent walking pioneered by its predecessor, MARLO, but it opens a host of new possibilities. Jessy Grizzle, the director of Michigan Robotics and the Elmer G. Gilbert Distinguished University Professor of Engineering, is especially interested in mounting a camera on Cassie and incorporating fast image processing on its extra chip, enabling the robot to use video to identify large changes in terrain visually. This, Grizzle says, will prepare Cassie for Michigan’s “robot torture track” – the art installation known as the Wave Field. The field of three-foot earthen mounds totally destroyed one of MARLO’s knees last summer when the robot stepped blindly from the top of one hillock into the ditch. “You’ve seen kids running freely over the Wave Field?” Grizzle asked. “That’s what this robot should be able to do.”
Просмотров: 39835 Michigan Engineering
Michigan Engineering Students' Dream Jobs
University of Michigan Engineering students share their dream jobs.
Просмотров: 11585 Michigan Engineering
Lab on a Chip
Scientists at the University of Michigan are developing microfluid devices to better develop and test human cells. Their three-dimensional cultures create environments that more closely mimics that of the human body than the traditional flat petri dish. With this research, Professor Shuichi Takayama hopes to reduce the cost of drug development and advance disease treatment by provided miniature environments that mimic parts of the human body. ABOUT THE PROFESSOR: Shuichi Takayama (http://www.bme.umich.edu/people/index.php?un=takayama) is a professor of Biomedical Engineering (http://www.bme.umich.edu/) and Macromolecular Science and Engineering (http://macromolecular.umich.edu/) at the University of Michigan. His research includes the development of microfluidics and micro/nanotechnology platforms capable of testing cells and subcellular components with combinations of mechanical, chemical, electrical, topographical, and thermal stimuli.
Просмотров: 9930 Michigan Engineering
Revamping Rotating Detonation Engines
Rotating detonation engines go back to the 1950s. The idea was to confine a spinning detonation wave in a ring over a circle of fuel injectors. It would be more efficient than the combustors used in rockets. Arthur Nicholls, a professor emeritus of aerospace engineering, was one of the engine’s early pioneers. Professor Mirko Gamba studies combustion, specifically combustion at high speeds, such as occurs in supersonic vehicles. Flames and shock waves are his home turf. Gamba’s group will run experiments to help answer questions about how to optimize the propagation of the detonation wave. What affects its structure? What is the best way to mix the air and fuel – can the detonation wave help with this? In this video, Professor Gamba speaks with Art Nicholls about why he began researching rotating detonation engines, how far he progressed with that research, and why he ultimately ceased his study of the technology.
Просмотров: 4119 Michigan Engineering
Being a Woman in Engineering | Michigan Engineering
From aspiring engineers to leaders in their field, women share what it means to follow their engineering ambitions. Being in a field that is largely comprised of men, women can face challenges along the way to becoming a professional engineer. Hear what inspired them to pursue their career path and what advice they have for the next generation of women in engineering.
Просмотров: 14055 Michigan Engineering
iPad App for Cerebral Palsy Patients Developed by Michigan Engineering Students
A University of Michigan team of engineering students and rehabilitation engineers is building an app to help people whose impaired motor movements make it hard to manipulate touch-sensitive screens or press the small buttons on iPads and other mobile devices. http://tinyurl.com/3xokf85
Просмотров: 27402 Michigan Engineering
Why I Picked Michigan Engineering
Graduate students of the University of Michigan College of Engineering talk about why they picked Michigan Engineering for their PhD programs.
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Michigan Engineering
The world is facing big challenges, from energy to healthcare, to the environment -- and the list goes on. Engineers are at the heart of solving these problems, and Michigan Engineers are expert problem-solvers who are ready to tackle the challenges of the 21st Century. http://www.engin.umich.edu/
Просмотров: 10404 Michigan Engineering
U-M takes first step towards teleportation
Xavier Vlad, who heads up the Center for Advanced Material Irradiation, describes an experimental oddity: one test sample vanished from the vacuum chamber at the end of an ion beam line and appeared in a separate chamber in a different area of the lab. Dare we call it teleportation? ABOUT THE PROFESSOR: Xavier Vlad is a professor of Material Irradiation at the University of Michigan College of Engineering. His research group, the Composition Analysis Lab (CAL), uses ion beams to probe the structure and composition of materials. Published on April 1, 2013.
Просмотров: 108757 Michigan Engineering
Improved Helmet Design
A new football helmet design aims to blunt some dangerous physics that today’s models ignore. Current helmets are made to reduce the peak force of an impact and prevent skull fractures. They do that well. But they don’t actually dissipate the energy of a collision. They leave that to the brain. The new Michigan Engineering system, which is partially funded by the NFL, could lead to a safer helmet. The system is made of three layers. The first two convert the frequency of the incoming pressure wave from the hit into another frequency that the third layer can grab hold of and dissipate through vibration. “You can dissipate energy by fracture and plastic deformation and that’s sort of the idea with a bike helmet,” said Ellen Arruda, a professor of mechanical engineering and one of the leaders of the project. “If you’re wearing it and you fall and you hit your head and the helmet cracks, you dissipate energy and it protects your skull and protects your brain. You throw it away and you get a new helmet. That’s not a practical solution in a football game. We designed our helmet to optimally dissipate the energy of an impact, every time it’s hit. Not just once, but every time.” ABOUT THE PROFESSOR Ellen Arruda (https://me-web2.engin.umich.edu/pub/directory/bio?uniqname=arruda) is a professor of Mechanical Engineering (http://me.engin.umich.edu/) and Macromolecular Science and Engineering (http://www.macromolecular.umich.edu/) at Michigan Engineering. She studies the mechanical behavior of materials including polymers, elastomers and soft tissue; tissue engineering of tendon and muscle constructs; constitutive modeling of growth, remodeling and functional adaptation in soft tissue; deformation mechanisms in polymers; crystal transformation mechanisms in semi-crystalline polymers; split Hopkinson pressure bar testing of polymers and elastomers for high strain rate applications including crashworthiness in automotive applications.
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Krzysztof Fidkowski | How Planes Fly
AEROSPACE PROFESSOR SEMINAR SERIES How does an aircraft wing generate lift? This talk covers common misconceptions, including equal transit-time theory and the Venturi effect, and presents some explanations that appeal to physical intuition, including flow turning and streamline curvature. Krzysztof Fidkowski is an associate professor in the Aerospace Engineering Department at the University of Michigan. His research interests include development of robust solution techniques for computational fluid dynamics, error estimation, computational geometry management, parallel computation, large-scale model reduction, and design under uncertainty. His teaching interests are in undergraduate aerodynamics and numerical methods, and in graduate computational fluid dynamics.
Просмотров: 10381 Michigan Engineering
How have you changed?
University of Michigan engineering students answer the difficult question: How have they changed since coming to U-M Ann Arbor? Their responses range from funny to serious, goofy to poignant. No matter what type of answer they give, a common theme emerges: Growth.
Просмотров: 4726 Michigan Engineering
Doug McLean | Common Misconceptions in Aerodynamics
Doug McLean, retired Boeing Technical Fellow, discusses several examples of erroneous ways of looking at phenomena in aerodynamics, that have either taken hold in parts of the aerodynamics community or have been expressed in books or papers by other authors. These examples are mostly about interpreting the basic physics of the phenomenon in question. Most are from his book Understanding Aerodynamics - Arguing from the Real Physics, but a couple of them are new. Examples will include ways of explaining the lift of a wing or the thrust of a rocket in intuitive physical terms, interpretations of the induced drag of a wing and how tip devices such as winglets work, widespread misunderstandings of how lift is manifested in the global flowfield around a wing, the common pitfalls of discussing pressure drag and thrust, and common misunderstandings of the accuracy of CFD. Although these topics involve a wide variety of physical phenomena, Dr. McLean will attempt to identify the common threads. An appropriate subtitle for this talk would be An Argumentative Aerodynamicist Gets Old and Cranky and Takes Issue with Just About Everyone. Sponsored by the Aerospace Engineering Department (http://www.engin.umich.edu/aero) as part of the 585 Lecture Series. Speaker Bio: Doug McLean is a retired Boeing Technical Fellow. At Boeing, he worked on CFD codes for transonic wing design, codes for airplane spanload optimization including the effect of structural weight, novel wingtip devices to reduce induced drag, transonic airfoil technology, swept-wing laminar flow, turbulent skin-friction reduction, and pressure-sensitive paint. He received a B.A. in physics from the University of California at Riverside in 1965 and a Ph.D. in Aerospace and Mechanical Sciences from Princeton University in 1970. He is the author of Understanding Aerodynamics - Arguing from the Real Physics (Wiley, 2012), which is intended to promote greater physical understanding of aerodynamics. He has designed his own model airplanes since he was a youngster and held a national record in the Pennyplane class of indoor rubber-powered models.
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Could human urine fertilize food on a commercial scale and close the nutrition cycle? A group of University of Michigan researchers is working to find out. http://dme.engin.umich.edu/toilettotable/
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Moving In, Moving On
More than 6,000 University of Michigan freshmen began their four year journey with a two-day dorm move-in. Parents and children had mixed emotions as they all transitioned into a new phase of their lives. www.engin.umich.edu
Просмотров: 6286 Michigan Engineering
Robotics at Michigan Engineering
Robots at Michigan Engineering range from walking and running to swimming and flying. The technology being developed includes the use of autonomous systems to allow the robots to make real-time navigation and decisions in the field, making them ideal for disaster and recovery scenarios. About the Professors: Jessy Grizzle is a Professor of Electrical Engineering and Computer Science. Ella Atkins is an Associate Professor of Aerospace Engineering. Ryan Eustice is an Assistant Professor of Naval Architecture and Marine Engineering. Edwin Olson is an Assistant Professor of Computer Science and Engineering.
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April 1st Prank: Cloaking spray in development at U-M
(April 1st Prank). A cloaking paint developed by Michigan Engineers sprays on clear and dries invisible. Once dry, it guides light around an object, causing it to become transparent. (NOTE: This technology only works one day each year on April 1.) As nanotechnology blurs the line between science and science fiction, Christoph Ellison has developed a paint that guides rays of light around an object. Still in development, the distortions allow the outline of the object to be seen, preventing true invisibility. About the Professor: Christoph Ellison is an Assistant Professor at the University of Michigan College of Engineering (http://www.engin.umich.edu/). His research at the Center for Nano-optics includes nano-colloids, nano-gels, negative index materials and superlensing.
Просмотров: 908996 Michigan Engineering
Using Nanowires to Create Synthetic Enamel | Michigan Engineering
Michigan Engineering researchers have developed a rigid and durable new material inspired by tooth enamel. Unavoidable vibrations, such as those on an airplane, cause rigid structures to age and crack, but most materials that effectively absorb vibrations are soft, so they don’t make good structural components, like beams, chassis or motherboards. Researchers chose to model their new material after enamel because it is strong and rigid, but also effectively absorbs vibrations. The research for this new material is presented in the paper, “Abiotic tooth enamel,” in the journal Nature. Nicholas Kotov is the Joseph B and Florence V Cejka Professor of Engineering in the Chemical Engineering Department at the University of Michigan College of Engineering. Bongjun Yeom was a postdoctoral researcher in chemical engineering at U-M at the time of this study, and co-authored the paper. http://www.umkotov.com/ http://engin.umich.edu/
Просмотров: 7272 Michigan Engineering
What is Engineering?
What is engineering? That's not an easy question, but here are some ways of looking at what makes a good engineer from a few of our very own here at Michigan Engineering.
Просмотров: 12299 Michigan Engineering