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Seoul National University Graduate Students Dev... 2014-12-05
Writer: admin

 “I want to say everything I want to say,” and “I don’t want my words to be saved somewhere forever.”  These are the words of netizens about social media.  Seoul National University’s GIS research team (Advisor: Ki Yoon Yoo)’s 8 graduate students developed a social media solution called “Bubble City.”
 
Bubble City makes sure that everyone stays anonymous, unlike Facebook and similar products that save personal information.

A user only needs an e-mail address to sign up for the product.  A user can anonymously leave comments in a certain location and others can respond to that comment anonymously as well.
 
Existing SNS preserve personal information, but Bubble City deletes that information. From anywhere between 1 hour to 4 weeks, the message will stay then be deleted automatically like a bubble.
 
The research team spent 2 years researching the algorithm.  Unlike other social network services, the messages aren’t on a timeline, but are divided according to the message.
 
Kun Il No stated, “I want to be able to write anything I want in the digital world and so I developed this app.  We received great feedback from SNU students during beta testing.”
 
The app was released on the 17th on the Android play store in both Korean and English versions.  An iPhone version is in development.
 
▲ Bubble City Development Team (Clockwise from the front row: Young Min Lee, Jae Eun Lee,Kun Il No, Pil Kwon, Hwa Min Son, Jae Wan Choi, Yoon Shik Bang)

 



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Seoul National University Professors Jong Ahm K... 2014-12-05
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▲ Professor Jong Ahm Kim (left), Professor Eun Suk Seo (right)
 


Seoul National University’s Mechanical and Aerospace Engineering Professor Jong Ahm Kim and Industrial Engineering Professor Eun Suk Seo (working with KAIST Aerospace Engineering Professor Jae Myung Ahn) was picked for the 1st Lockheed Martin produced Republic of Korea Science Technology and Research (RoKST&R).
 
This first RoKST&R is an opportunity provided for Korean universities and research groups by Lockheed Martin to provide funding for skilled groups.  This competition has been going on since April for fields of aerospace, new energy, and nano skills.  Lockheed Martin scientists and experts are part of the judges that assess the papers, expected success, and scientific background of 30 groups to choose 3 winning teams.
 
For the next year, the winning team of Professors Jong Ahm Kim and Eun Suk Seo will work with Lockheed Martin engineers on their research.
 
Professor Jong Ahm Kim stated, “We are working on a project involving the Reynold’s number.  This can be used for explosives, forest fires, cell phone services, and various important functions.  However, we will be analyzing the Reynold’s number for a variety of functions.”
 
Industrial Engineering Professor Eun Suk Seo worked with KAIST Aerospace Engineering Professor Jae Myung Ahn to research how group decisions impact outcomes and ways to predict them.  This is important for existing projects in how groups work together.  The research will help decrease unnecessary fees involved in a project and improve communication among team members.
 
This is the first RoKST&R competition held in Asia by Lockheed Martin.  Lockheed Martin is based in Bethesda with more than 113,000 worldwide that research system, product and service, design, development, manufacture, and a variety of other research fields.



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Professor Sung June Kim develops precise nerve s... 2014-12-05
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▲ Professor Sung June Kim from Electrical and Information Engineering

 
A Korean research team used light to safety and precisely stimulate nerves.  This research can be used to treat Parkinson’s disease or other similar diseases in the future.

A research team involving Professor Sung June Kim, Kyunghee University Professor Kyung Min Byun, and Ewha Women’s University Professor Sang Bum Chun used nanoheaters and external light to stimulate nerves.


Until now, treating nerves required electricity or ultrasound equipment for stimulation.  However, electricity requires patients to undergo surgery and opens up the possibility for bacteria, so an external like ultrasound is better, but an ultrasound requires complex equipment.
 
The research team used information that heat can stimulate nerves to come up with a new development in this area.  They developed a nanoheater that uses gold to access heat.  They used this tool on animals to show that the nanoheater can provide safe heat that is capable of stimulating nerves.
 
They used lab rats to show the difference in the lower half of their bodies.  The nerve signals became more than 5 times greater.  The stimulation energy was 1/3 lower than other methods, which means that the nerves can be treated safely without any harmful effects.
 
The research team stated, “this nanoheater research is different from those than use electricity to show developments in this field.  This will be used in the future to treat nerves.”
 
This research was funded by the Global Frontier Project and Smart IT System Group, Complex Fusion Technology Pioneer, and Mid-sized Research group.  Their paper was published in the Small Journal on October 15.
 
※ Thesis: Enhanced Infrared Neural Stimulation using Localized Surface Plasmon Resonance of Gold Nanorods

 



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Seoul National University School of Engineering... 2014-12-05
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The Seoul National University School of Engineering had an event to make kimchi for area neighbors.  This event was held in front of Building 39 on the 13th and was attended by students and staff alike.  Even foreign students were involved in order to see more of the cultural aspects of Korea.
 
The kimchi made during this event will be given to the handicapped and elderly as well as single parent families living in the neighborhoods near the school.

 

[Information] Engineering School Kimchi Making Event
○ Date : November 13, 2014 (Thu) 13:00 - 18:00
○ Location : Front of Building 39
○ Attendees : Professors, Staff, Students, Foreign Students, etc
○ Location kimchi will be given to: Daehak-dong, Naksungdae-dong, Seolim-dong, Samsung-dong
○ Beneficiaries of the kimchi: Elderly, handicapped, single parent households
※ Amount(5kg Packages): 4 kimchi each, 150 packages



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Engineering Students Wins Praise for Safety Idea 2014-12-05
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Engineering students won praise for their stroller idea that increases safety.  Mechanical Engineering junior Dong Yun Han and his team (Soongsil University Computer Engineering junior Dong Eun Kim, Dongduk Women’s University Business senior Ji Hye Lee) developed a Carry Wear, which won 4 international awards.  The awards are Italia Society Award, Thailand Society ward, Qatar AGRI GREEN Award, and Vietnam International Society Award.
 
There were 1000 products from 22 different countries at the Vietnam International Exhibition. Dong Yun Han’s team received funding from the Kroean Society to develop and exhibit their product at this exhibition.
 
 “Carry Wear” uses a buckle belt that can be attached to any stroller.  This increases safety and makes it so that parents do not have to buy a new stroller to use the product.
 
Not only does it increase safety, but it also increases ease of use.  Parents can pull the stroller using energy from their back.  The product can also rotate 360 degrees and includes LED lights.
 
Dong Yun Han stated, “There has been a lot of accidents involving strollers on hills.  This product has a patent from the Korean side as well as a patent pending in the USA.”

▲ (top) Image: SNU Dong Yun Han’s team with Italy Society Representative
From left, Dong Yun Han, Ji Hye Lee, di Vincenzo Falcucci, Dong Eun Kim
 


▲ Carry Wear Use
Carry Wear uses a buckle belt that can improve safety on strollers



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Seoul National University Professor Kun Woo Lee... 2014-12-05
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▲ SNU Engineering Dean Kun Woo Lee
 


This past October 26, Seoul National University Dean Kun Woo Lee (Mechanical and Aerospace Engineering) won the Elsevier Editor Emeritus Award.  Dean Kun Woo Lee has been the Computer-Aided Design Journal’s editor for the past 10 years.
 
Elsevier is the most famous medical and scientific research journal read by more than 3000 medical professionals and scientists worldwide.  The Computer-Aided Design Journal involves automobiles, airplanes, ships, and other intricate products using CAD/CAM to design them.  Dean Kun Woo Lee has been the editor of the CAD Journal science 2004 and for 10 years has edited journals.
 
Dean Lee became a Professor at Seoul National University in 1986 and has become the Vice-Chairman of the Korean CAD/CAM Society as well as other honors.  He won the 2nd Kyung Ahm Award in 2006 for his work in CAD system research and was picked as an American Society of Mechanical Engineers Fellow, of which only 2% of the more than 120,000 members are picked.



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Seoul National University Department of Industri... 2014-12-05
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▲ Seoul National University Department of Industrial Engineering Ph.D. Candidate Sae Rom Park
 


Seoul National University announced that Department of Industrial Engineering Ph.D. Candidate Sae Rom Park won the Best Student Paper Award from the 15th Asia-Pacific Industrial Engineering and Management Systems of 2014.
 
Sae Rom Park’s paper was on “Using Ensemble to Predict” (Young Doo son, Hyung Min Byun, and Jae Wook Lee were other authors).  This paper uses the new prediction model to analyze results.  This provides a more accurate and safe analysis to predict events, and has received considerable praise from the judges.
 
Sae rom Park stated, “Winning this great award from an international group is amazing.  I will continue to learn and research more into the future that will help improve the field of study.”
 
APIEMS is an international society in the industrial engineering field.  This year, more than 500 people from more than 15 countries attended the conference held in Jeju.



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Merit Scholarship Students Ceremony for 2nd Seme... 2014-12-03
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This past October 30, Seoul National University’s School of Engineering held a ceremony for merit scholarship winners in the 2nd semester of 2014.  Of the 111 merit scholarship students, only 11 students showed up to represent the scholarship students.

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Seoul National University Materials Science and... 2014-12-03
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▲ Seoul National University Materials Science and Engineering Ph.D Candidate Hye Kyum Kim 


Seoul National University Materials Science and Engineering Ph.D Candidate Hye Kyum Kim (Advisor: Ki Suk Kang) won the Electrochemical Graduate Student Research Award of the Energy Technology Division from the American Electrochemical Society.  Kim will attend the award ceremony in May 2015 at Chicago.
 
The American Electrochemical Society is the top in the energy related field and annually picks 1-2 graduate students for this award.  The students must be excellent in their research and have the possibility of becoming a leader in the field.
 
Hye Gyum Kim researches lithium and sodium rechargeable electrodes and hybrid super capacitors.  His research will not only be used for rechargeable batteries, but for other uses as well.  The lithium and sodium saved energy can increase their capacity greatly through this research development, and the lithium and sodium can be used at either end of the elctrodes. 
 
Hye Gyum Kim stated, “I am thankful to my advisor (Professor Ki Suk Kang) and all the other researchers that I worked with over the years who have helped me win this award.  I will work even harder to make you all proud.  I am happy to be able to develop this new technology in rechargeable batteries that will improve the energy field.”



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Long life, High output, and Environmentally frien... 2014-12-03
Writer: admin

▲ SNU Materials Science and Engineering Professor Ki Suk Kang (left), KAIST Materials Science and Engineering Professor Chan Bum Park (right)


A domestic research group revealed that they developed a long-life, high-output, and environmentally-friendly rechargeable lithium battery.
 
Seoul National University’s Department of Materials Science and Engineering Professor Ki Suk Kang (image, left) and KAIST Department of Materials Science and Engineering Professor Chan Bum Park (image, right) worked together to develop a next-generational rechargeable lithium battery.  Their work was published in the Nature Communications journal.
 
Until now, high-energy and high-output rechargeable lithium batteries used transitional metals (cobalt, manganese, nickel, iron, etc) for the electrodes.  However, transitional metals increase the weight of the battery so places limitations on the amount of energy each battery can hold.  It also has problems in manufacturing and recycling that make it hard to be environmentally-friendly.  The research team decided to use bio-derived materials to solve these problems.
 
The research team discovered this bio-derived material last year for use in rechargeable lithium batteries and began researching it in earnest since then.  During cell respiration, the mitochondria produces flavin adenine dinucleotide (FAD), which is used in sending information and can provide energy through the process.
 
The research came up with an easier process that would complete the same type of action.  Within the cell, the lithium saves energy in what is called the redox center.  They get rid of unnecessary processes until only the bare minimum electrode material that is needed can stay.  Through this, they are able to improve the rechargeable battery’s effect.  This process can allow the battery to recharge at least 500 times while still maintaining at least 95% of the total battery capacity.  The bio-derived material will allow the rechargeable lithium battery to maintain most of its capacity throughout its life as opposed to the currently utilized batteries that diminish capacity greatly. 
 
Professor Ki Suk Kang stated, “Various bio-derived materials can be used to improve the capacity of the rechargeable battery.  This shows that there can possibly be a biological battery developed in the future.”  This research was conducted as a joint research between biological materials and lithium battery areas, and will help develop much needed improvements into the battery field.
 
This research was supported by the Agency for Defense Development and conducted by Seoul National University Professor Ki Suk Kang and KAIST Professor Chan Bum Park with students Ji Hyun Hong and Min Ah Lee.  This was published online on Nature Communications on October 31.
 
[Image]


▲ Pteridine can decrease the size and store lithium or sodium for the rechargeable lithium battery that uses bio-derived materials.

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