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2017-02 28 Important News

[Academics][Researcher of the Month] Blue Ocean of Materials Science

Conspicuous or not, our surroundings play a crucial role in navigating our health, holding accountability for small and big degenerations for mankind’s physical wellbeing. Among all, two indispensable elements in our life, air and water, have slow and accumulative effect on the health of the population. Professor Kim Ki-hyun (Department of Civil and Environmental Engineering), whose studies focus on environmental pollution, delineated the means of applying advanced materials in his review paper “Carbon nanotubes: a novel material for multifaceted applications in human healthcare.” Carbon nanotubes in biotechnology As modern material technology has been advancing considerably, its application seems ever-expanding in diverse fields, with nanomaterials as the convenient and indispensable companion. Based on a research paper conducted by other scholars, Kim wrote another, centralizing on the uses of carbon nanotubes (CNT), an emerging nanomaterial that is seeing the light in the biomedical and environmental fields. Its application is versatile: drug delivery, sensing, water purification, composite materials, and bone scaffolds. More specifically, CNTs could be used to alleviate myocardial infarction by enlarging clogged blood vessels, expediting drug delivery, and organizing bone structures in needed parts. Kim outlines his review paper on the application of carbon nanotubes in the biomedical field. Despite all the medical benefits, advanced materials including CNT also have the potential to bring adverse effects. As alien substances could disturb immune or antibody responses, the body functions to react against them. Especially, in case of new materials, unprecedented resistance could occur, and thus their potential impacts must be taken into consideration through attentive examination for possible toxicity. Nonetheless, as long as the criteria are met, CNT and other materials could spark revolutionary breakthroughs that would change the future of mankind. “I think that endless developments are yet to come in the field of materials science to help other research fields like environment and human health flourish. Better materials in terms of cost efficiency and functional effectiveness would be improved while there is yet no limits to such developments. Materials science and nanomaterials would not only be fruitful in biomedical fields but also environmentally,” commented Kim. His interest in new materials are extended toward environmental progress, starting with the sensing of pollutants and purifying polluted medium. The blue ocean Materials science could often be referred to as the 'blue ocean' since there are more to be discovered than what has been excavated so far. On top of this, collaboration with environmental issues is not conventional. Kim is involved in research for integrated environmental monitoring technology, digitizing and managing air, water, and soil pollution. He is looking forward to fuse newly unveiled materials in his research, hoping to bring a constructive result to lay a bridge between materials science and environmental engineering. To set an example, metal-organic frameworks (MOFs) could be used to mitigate environment pollution: volatile organic compounds (VOC) in the air spawns odor while propagating carcinogens if transferred into the human body through the respiratory system. As the material for sensing or removing such hazardous pollutants, MOFs are regarded as one of the highly promising solutions. What is to be underscored here is the infinite possibility of combination of the materials, which are not only capable of being used alone but also of being employed in cooperation with other materials. Kim's research will continue to be centered around mitigating environmental pollution with newly excavated materials. Jeon Chae-yun chaeyun111@hanyang.ac.kr Photos by Choi Min-ju

2017-02 24

[Academics]Research Institute Expands Cooperation With Africa

Hanyang University Institute for Euro-African Studies recently signed an MOU, the first among domestic universities, with government institutions and universities in Tanzania and Morocco. Hanyang University will support the training of experts in Africa and advancement of Korean SMEs. The Institute signed an MOU with major economic ministries, including Tanzania Trade Development Agency, Tourism and Investment Office, University of Dar es Salaam, and Ardhi University, on May 13th. In particular, the Tourism Authority of Tanzania has decided to appoint Hanyang University Institute for Euro-African Studies as the Korean Goodwill Ambassador to Tanzania. Prior to this, the Institute sought to cooperate with the Ministry of Urban Policy and Development in Morocco last December and signed a MOU with Mohamed V. University of Rabat the capital of Morocco. After the agreement, the Institute joined Nanjing University, China and Meiji University, Japan to co-host the Asia-Africa Cooperation International Conference. The two-way agreement with Tanzania and Moroccan agencies and universities signifies the expansion of their foundations for training regional experts on Africa and opens the way into the African market for small-to-medium Korean enterprises as well as academic exchanges. Kim Sung-soo, a professor in the Department of Political Science and International Studies, said on December 22, "The agreement has an economic significance in addition to academic significance." He added, “The entry of Korean SMEs to Africa will also greatly help Korea's economy. " ▲Prof. Kim Sung-soo

2017-02 20 Important News

[Academics]Redefining Warfare for Cyberspace Battle

Professor Eun. (Photo courtesy of Eun) Since the early 2010s, there have been reports in the media about the rising number of cyberattacks. One of the most notable incidents is the US and Israel's joint cyber assaults at Iran's nuclear facilities using the Stuxnet worm virus. The attacks focused on destroying the operation system of the installations instead of military offense. Hearing this, Professor Eun Yong-soo (Department of Political Science & International Studies) started to question the adaptability of the traditional concept of war to modern cyberattacks. The first Asian to become the editor-in-chief of the Routledge series, "International Relations (IR) Theory and Practice in Asia", Eun specializes in IR theory. His paper, "Cyberwar: Taking Stock of Security and Warfare in the Digital Age" discusses the necessity to reformulate the concept of war in the Information Era. This paper was published in International Studies Perspectives, a SSCI indexed and internationally recognized academic journel of the International Studies Association. According to a German war theorist, Karl Clausewitz, a traditional war is caused with violent means such as destruction, by an institutionalized entity, which has a political purpose to acquire certain values like power or money. Although the concept of cyberwar can be applied to this definition, it is insufficient since there are great disparities between the virtual and the physical world. First, in the case of cyberwar, it is difficult to find who is responsible for the war. "In traditional war, we know who began the attack, and who discharged the missiles. But due to the advance of digital technology, stealthy attacks are possible by circumventing Internet Protocol (IP) addresses," explained Eun. In addition, there may be individuals who serve a government or an institutionalized organization to launch a cyberattack. Second, the damage caused by cyberwar is indirect and comprehensive, whereas harm done by traditional wars occurs directly and instantaneously. If blackout occurs in organizations such as banks and digital network, the entire city becomes disordered, negatively influencing the crime rate and crashing the stock market- and in turn, affecting the whole nation's economy to gradually collapse in the long run. Finally, cyber attacks are much easier to launch than physical assaults. Traditional warfare needs money, and much challenging, as armies need maintaining and weapons have to be launched. Moreover, such attacks are spotted on radar and satellites. By comparison, cyberattacks are carried out with ease. By simple access to the Internet, the whole information network can be destroyed. “There is a concept called 'cyberwar asymmetric paradox'. Although a nation, such as the US and South Korea, boasts high information and communication technology (ICT), its proliferation and reliance means reduced cyberwar strength, because the defense ability is decreased,” Eun specified. This means that the ubiquitous Internet may easily turn many into victims of Information War. Cyberwar asymmetric paradox increases third world countries' motivation to trigger cyberwars. Since they are less subject to shutdowns by cyberattacks due to poor infrastructure, they would remain safe from any damages caused by cyberwars compared to other developed countries. A lower mark in cyber dependence makes a country more dependent. Although the US's cyber offence is stronger than North Korea, the total cyber-strength is weaker due to high cyber dependence and low cyber defence. (Photo courtesy of Eun) “Therefore, there is a need for redefining warfare. The imbalance of power is a significant aspect when analyzing causes of war, since balance of strength may restrain the desire for war. So, when analyzing national power, it is important to consider cyber-strength as an important factor of war along with GDP and military power,” Eun concluded. According to Eun, open social consensus on the extent to calling cyberattack a war is also indispensible, because of its broad and comprehensive damage. This is also significant due to possible cases where hyper securitization can be wrongfully used as a means of acquiring political advantage, labeling every major and minor cyberattack a war. In addition, open discussion, research, and creation of a manual for cyberwar is a necessity particularly in South Korea where despite all the cyberattacks caused by North Korea and high cyber-reliance, there is a lack of academic discussion regarding the issue. Eun explains the need for open discussion and academic research on cyberwar in the modern society. Currently, Eun is planning to develop diverse research theories in the field of international politics. "The theories for academics are typically Western-oriented. They don’t depict our world and its reality," Eun argued. His project is to develop non-Western international political theories. Eun is currently writing a book about the subject, which is called "What is at Stake in Building "Non-Western" International Relations Theory?", and is leading a research project about emotions influencing international politics. "There are a lot of emotional battles going on among Korea, Japan and China. I'm interested in how the collective feelings of a group or a nation affect diplomacy," he said. Turning over conventional ideas and mainstream research methods is what interests Eun, and they usually trigger his research. "Difficulties do arise when you don't follow the mainstream. Yet, I believe that thinking differently is necessary for the development of a society. Even though diverse ideas are not easily accepted, there is a need for people to vocalize thoughts that differ from the mainstream." Eun believes that voicing diverse ideas that differ from the mainstream is important for the development of society. Jang Soo-hyun luxkari@hanyang.ac.kr Photos by Choi Min-ju

2017-02 20 Important News

[Event]2017 Graduation Ceremony at HYU

Before spring approaches, Hanyang University (HYU) students from Seoul and ERICA Campus are getting ready to take a big step outside of Hanyang. In Seoul Campus, total number of students who graduated were 2644, and that of the ERICA Campus were 1688. The 2017 winter graduation ceremony was held at the ERICA Campus on 15th February, and at the Seoul Campus on 16th and 17th. Goodbye Hanyang On the first day of this year's first graduation ceremony, there were a lot of soon-to-be-graduates of HYU along with their family members and friends in front of Aejeemun (Hanyang Station Exit #2) and the Administration Building. Even before the graduation ceremony started, students were taking pictures, celebrating their last day at school. Students pose for pictures with their mates. At 10:30 a.m., graduation ceremonies were held in different colleges, including the College of Engineering, Music, Economics and Finance, and several others. Among all the other colleges in the Seoul Campus, the number of graduates were the highest in the College of Engineering. To accommodate a rough figure of 1100 students, their ceremony was held in the Olympic Gymnasium. On the way to the Olympic Gymnasium, Seoul Campus, there were many witty banners hung around school, congratulating friends. The Olympic Gymnasium was filled with graduates from the College of Engineering. Grand ceremony held on the both campuses At the ERICA Campus, the graduation ceremony of the College of Engineering Sciences was held in the Conference Hall. The lobby was full of graduates and their friends and families. There were juniors from clubs who came along to celebrate the seniors’ graduation. “It's sad to think that I can't see them anymore on campus. We will definitely miss them while we do our club activities,” said Cho Su-min (English Language & Culture, ERICA, 4th year). As the ceremony officially began, graduates all sat in the front row, wearing a blue gown and a graduation cap. Parents, relatives, friends, anyone who came to celebrate students' graduation set at the back. The ceremony began with an opening speech, soon followed by a message given by the President of HYU, Lee Young-moo. President Lee is delivering a speech at the Student Union, ERICA Campus. President Lee first sent greetings to all the people who participated in the ceremony and left advice to graduates who will now head into the wider world. “I want to thank all the professors and parents who have supported students to come all this way to graduation. I am also greatly proud of graduates who endured years of studying. I hope students remain passionate, practice the school motto "Love In Deed", and live their own lives, not that of others." After the words of encouragement, there were award ceremonies on the both campuses, to students with high GPAs and those who set an example, allowing Hanyang's name to shine. “I don't think I deserve this award but I'm glad I got it. My average GPA was 3.75. I tried to not miss class often, which I think allowed me to get this award,” said Yu Hyung-Jae (Composition, ’17). Kim Hun (Architecture, '17), said, “I was taken aback in receiving such a big award. I think that the two years of work as a president of the HYU Chinese students association was taken as a noteworthy achievement." Lee is handing the diploma to a graduating student. After years of being a student After all the ceremonies and the official events ended, more graduates appeared available for interviews. “Among all the years, I remember that sense of isolation I felt when I had just transferred to a new department. It was rough to adjust to the new classes and to get along with new people,” said Jung Yi-jun (Economics and Finance, ’17). Byun Hee-su (Electronic Engineering, '17), added, “I feel much relieved that I am finally graduating and moving on to start a new career outside of school. I am currently working on getting a job and will be concentrating on that." Professor Park Jong-won (Journalism & Mass Communication) said students whom he remembers better are those who didn't actually study very hard. “Not being committed to one's studies isn't necessarily a bad thing. I believe that the students who don't take studying seriously are those who pursue what they truly like. I hope students could form a wider perspective, without being too confined to the rituals of studying.” Byun Hee-su and her family takes a picture after the ceremony with bright smiles on their faces. Parents of graduates seemed proud to see their child finally graduate. The university graduation of sons and daughters must stand as a big event in the parents' lives, too. After taking hundreds of photos, students gradually left the school campus. Now being official graduates of HYU, News H sincerely encourages all graduates to realize their potential in society to the full. Graduates throw their graduation caps high in the air. Yun Ji-hyun uni27@hanyang.ac.kr Photos by Moon Hana, Kim Youn-soo, Yun Ji-hyun

2017-02 14

[Academics]Transition of PDA Crystals

In the 21st century, nanoscience is coming into the limelight, as more sophisticated technologies are urgently in need to solve crimes or enhance the quality of life. Here is the leader of the Institute of Nano Science and Technology (INST) of Hanyang University- Kim Jong-man, professor at the Department of Chemical Engineering, who is currently leading the field of nanoscience. In the paper “Photoinduced reversible phase transition of azobenzene-containing polydiacetylene crystals,” Kim revealed how an azobenzene-containing supramolecular polydiacetylene (PDA) crystal undergoes a photo-induced reversible red-to-blue phase transition accompanied by crystal tearing. Kim reveals the reversible phase transition that azobenzene-containing PDA crystals undergo. Polydiacetylene, also called as PDA, is an organic polymer that conducts electricity, which is created by the polymerization of substituted diacetylene. PDA is a commonly used compound in the scientific field, considering its multiple applications- from development of organic films to immobilizations of other molecules. Recently, Kim and his research team have found out that when azobenzene, a synthetic crystalline organic compound, is incorporated to PDAs, it showed grand responsiveness to ultraviolet (UV) radiation. “The ultimate goal of this research was to find out what kind of changes the azobenzene-containing PDA crystal undergoes when exposed to UV rays. The result was phenomenal, as crystal tearing was detected in the vulnerable areas of its crystalline structure,” said Kim. Photo-isomerization of azobenzene is a form of light-induced molecular motion, which simply means the compound is capable of absorbing light. When azobenzene is incorporated into PDA crystals, crystal tearing occurred, along with red-to-blue color phase transition between frail crystal structures. These measured up to about 25 degrees in angle. When the UV exposure was removed, the crystalline structure returned to its original state. The video above shows the reversible phase transition of azobenzene-containing PDA crystal, and its crystalline tearing, along with red-blue transition. (Video courtesy of Kim) The graph above shows the angle of crystal tearings when the UV is turned on and off. (Photo courtesy of Kim) “This crystal-tearing phenomenon was a startling finding, because in the beginning, our team only expected color changes, not alternations in the structure. This six month-long experiment proved that light, such as UV rays, can be used as remote controls to regulate nano-compounds,” mentioned Kim. A remote control of nano-particles using lights is called an ‘actuator’, and Kim is hoping to enhance the sophistication of its design based on this experiment. PDA is an intriguing compound, due to its scientifically academic characteristic and practicality. PDAs can bear several colors, mostly red and blue, which is a rare phenomenon found in an organic compound. When certain physical or chemical pressure is applied to PDAs, they usually change their color from red to blue. When the pressure is removed, the color will change back from blue to red, which is called the reversible transition phase. Using this reversibility, Kim discovered various practical applications of PDAs, such as the ‘Forged Gasoline Identification Kit’ or the 'Pore Map', which identifies inherent pore structures. Kim explains various applications of polydiacetylenes. “It is my ultimate goal to develop sensitive sensors using PDAs that can be applied to carbon nanotubes or lung cancer detectors,” added Kim. Carbon nanotubes are allotropes of carbon that are useful in a lot of areas, such as nanotechnology, optics, electronics and material sciences. The lung cancer detector that Kim desires to formulate is designed based on the fact that human breaths consist of about 40 kinds of volatile organic compounds (VOC). Among the VOCs, there is a compound called toluene, which lung cancer patients possess three times more than normal people in their breaths. Based on this, Kim longs to create a kit that can verify whether a test taker is ill or not, just by breathing into the kit. “These practical applications do have restrictions, since the area they are used for are sensitive- economically and security-wise. As a professor, I'm more interested in enhancing the academic foundation of material science, especially PDAs, for the future of nanotechnology,” said Kim. “I want my students and trainees to become scientists, not technicians. While technicians do what they are told to do, scientists ponder upon new ideas and move forward creatively. This approach will allow the futures of our students - including science - to shine.” "Becoming a questioning scientist, instead of a passive technician, is key to the bright future of science." Kim Ju-hyun kimster9421@hanyang.ac.kr Photos by Kim Youn-soo

2017-02 06

[Academics][Researcher of the Month] Al-FCG Ready for Action

Professor Sun Yang-guk of the Department of Energy Engineering is February’s Researcher of the Month for his active role in exploring the field of energy engineering. In his paper, “Compositionally Graded Cathode Material with Long-Term Cycling Stability for Electric Vehicles Application”, Sun explains how adding aluminum into the cathode makes batteries last longer and become more stable compared to other rates of composition. The Al-FCG61 that Sun has developed has shown a high rate of energy efficiency even at 100% depth of discharge (DOD), which draws attention in the field. Sun explains his research with assisted diagrams. As the supply and demand of the electric vehicle is on the rise, most of the batteries in the market last from 150km to 400km, meaning that once the battery is fully charged, the car would move between the distance within. What accounts for the difference is the capacity as to how much cathode can hold up. In order for cars to go beyond 300km at least, the capacity of the cathode would have to be over 200A/h. The only problem to this is that it gets difficult to make it stable and it could blow up. There are various prototypes ranging from generation 1 to generation 4 and the study carried out in Sun's paper is on generation 3. Gradients of different components from inner to outer parts of nickel particle. (Photo courtesy of Sun) Capacity retention, which is the lifespan of a battery, would rise with 61% of nickel with FCG full concentration gradient, which is what Sun has developed in order to create a more stable and long-lasting battery that would hold a larger capacity. Within the mold, Sun has created a two-way particle that contains a high percentage of nickel inside with lower percentage of nickel on the outside. This concentration gradient is created due to the fact that nickel has its advantage of being able to increase the capacity of the battery while it makes the battery more unstable with exothermic reaction. Along with the nickel, Sun has increased the percentage of the manganese inside the particle since it has the advantage of making the cathode more stable. Depth of discharge (DOD) is the rate at which battery is either charged 60% or 100%, and this is tested before electric vehicles are sold for inspection. The average usage of an electric vehicle is at around 2,500 cycles for 10 years, and the Al-FCG has proven to be more energy efficient even at 100%. Most of the batteries do not last long at DOD100 due to the expansion of volume inside the battery. This means that the battery would lose its efficiency as time goes. Al-FCG has shown its Coulombic efficiency rate of 84.5% even at DOD100, while batteries currently in the market show an average of 50% at 2000 cycles. This new battery devised by Sun is not only more energy efficient, but more cost efficient as well. Sun wishes to make more efficient batteries. Sun is continuously researching to keep the DOD level at 100% even after 2000 cycles. With his findings, the electric vehicle industry would definitely benefit hugely in terms of cost and energy efficiency. With different materials, Sun wishes to develop other types of batteries that would bring more comfort to society. Kim Seung-jun nzdave94@hanyang.ac.kr Photos by Kim Youn-soo

2017-01 23 Important News

[Academics]How the Spiral of Science Affects Global Opinion (1)

Professor Sohn Dong-young of the Department of Media & Communication is an expert in the field of Computational Social Science, Social Network and Collective Action, Media Psychology, and Persuasive Communication. He also actively introduces his papers in academic journals including the Journal of Communication, New Media & Society, Journal of Computer-Mediated Communication, Journal of Advertising, and Journalism & Mass Communication Quarterly. This week, News H met with Sohn to discuss about his recent paper, “Collective Dynamics of the Spiral of Silence: the Role of Ego-Network Size”, which explains how the local spiral of silence phenomenon can influence global opinion, and how the social media affect people’s formation of opinion. Sohn is explaining about his paper. In the past when internet connection hadn't been well-established, groups of people with various opinions couldn't be conjoined. However, thanks to the Internet, people can now freely share their opinions with one another through various media platforms like social networking sites (SNS). “This paper mainly explains how more networking formed between individuals increases the possibilities of a phenomenon called ‘the spiral of silence’,” said Sohn. According to 'spiral of silence’ theory, which is used as a major explanatory mechanism in the field of public opinion, an individual is less likely to assert one’s opinion if one is aware of the fact that that opinion is non-mainstream. “To give an example, let’s assume that more people in a certain region think abortion should be deemed illegal, and such opinion is more publicly accepted and widespread. This leads another group of people, who think it should be legal, hesitate to express their thoughts out loud. It is due to the fear that one could be isolated from the rest of the society," said Sohn. What Sohn researched on is how this well-known theory can be proved to exist in a certain environment. Sohn used computer simulations to test and prove his theories. “We made a computer simulation program composed of 1000 people. We set the program on each individual to increase the credibility on others' opinions, and we found out that an individual gives more credit to opinions that are more popular and supported. "On the other hand, opinions from minorities received much less credits from an individual,” Sohn explained. The program also widened the scope of the networking environment for each individual in order to see when one would be more willing to raise their voice. “After the examination, we found that the spiral of silence phenomenon occurs differently according to the size of a network each individual is in." When an individual is within a small-sized network, having a lesser chance to acknowledge others’ opinions, that person cannot tell if his or her opinion is that of the mass or of the minority. Opinions will consequently be polarized. But as the scope of a network grows, the individual has the chance to see and hear opinions of others better, being able to self-check which side they belong to. This directly leads to the spiral of silence phenomenon. “While social science research has a rather big gap formed between theories and practical research, I believe we can develop more sophisticated theories with computer simulations. This will further shorten the distance between speculative research and practical data, allowing research like mine become more useful in our society,” posited Sohn. Sohn said it is more important for students to ask 'why' than merely struggling to obtain an answer. Yun Ji-hyun uni27@hanyang.ac.kr Photos by Choi Min-ju

2017-01 19

[General]New Head Coaches at Hanyang

Hanyang University recently announced the appointment of Yang Jin-woong, former player of Korean national team, and Kim Ki-duk, former player of Ssangbangwool Raiders, to volleyball and a baseball head coach respectively on 19th. Yang graduated from the Department of Physical Education of Hanyang University, and had been a key player on Korean national team for 8 years since 1983. He served as a senior coach of Hyundai Capital · Woori Card Volleyball Team, and a head coach of Korean national team. Kim was also a pitcher of Hanyang University and started his career as a professional athlete by joining Ssangbangwool Raiders. He has served as a head coach of SK Wyverns and Hanyang University since 2003. ▲Yang Jin-woong ▲Kim Ki-duk

2017-01 16 Important News

[Student]Hanbok Beloved Worldwide

From 4th of January to 9th of January, hanbok making class was held in Human Ecology Building by Won Young. She has studied about hanbok and designing at Hanyang University (HYU) while attending Department of Clothing and Textile. The classes were held two hours everyday excluding the weekends, for four times. How it all started Won Young is Malaysian Chinese and also a Korean gyopo. While she was living in China, she says that there used to be a lot of tribes wearing different types of traditional clothes which is when she first encountered hanbok. “I have seen hanbok a lot on the television but once I came to Korea, I couldn’t see anyone wearing it in real life,” Won said. In order to make up for the discomfort of the hanbok, she started studying about life hanbok and became interested in the designs. Won (right) teaches Helene (left) how to use the sewing machine. She has created a startup team called TS (Time and Space) which consists of two people at the moment. Since she has studied in the field of fashion, Won thought of creating a brand of her own or creating a platform. Although there used to be websites where flower printings were available, it seemed to be a waste to cut out the pieces while designing her own patterns. This is how Won came up with the idea of DIY fabric in which she designs her own patterns and inserts the prints within the patterns. While attending at HYU, Won has participated in diverse programs created for international students but she felt that something was missing. “It seems like I was just looking around rather than doing something at the complete experiencing level. I think there are a lot of foreigners who would think like me,” said Won. This is how she came up with the idea of hanbok making class. Reactions towards the program A total number of fourteen students from diverse countries have participated in this program. Cho Yu-jin (faculty at Department of Clothing and Textile) and Lee Ye-jin (acquaintance of Won) have helped out with this event. Cho has helped out with the over lock while Lee has helped with the translation with the foreign students. Since the students participating in this program did not have any experiences or were not related major to fashion or designing, they had a hard time putting this together and one of them had to do all the sewing all over again from the sketch. Renu (left) and Azira (right) enjoys the program. Most of the students who have participated in the program had a similar idea in a sense that they were not aware of hanbok and how it could be utilized in daily life as well. Hwang An-ki (Media Communication, 2nd yr) said, “I was not well aware of Hanbok in the first place but as I was making it, it came to me as a beautiful traditional clothing.” Since foreign students who do not return to their home countries have not much to experience, they all claim that it has been a great experience for them. “I think it’s quite interesting that some people still wear traditional clothes since we don’t have them in Denmark. I think hanbok is very beautiful costume,” claimed Helene (Korean Studies, Master’s program). Although it has been a short period of time, all the students were able to finish their hanboks. After the session has finished, participants have matched their casual clothes along with hanbok and had photo session afterwards. “Through making the hanbok, foreign students would have been able to have the sense of achievement and feel the traditional culture of Korean costume. Also, by being able to have felt a new type of experience of making clothes, some people would have found a new hobby as well,” added Won. The students who have participated will keep in contact with each other and exchange information on hanbok flea markets or Korean culture experiences. Through this program, foreign students now understand Korean culture a little more. Since it has been a greatly developed program where it has been a talent donation of Won, students from diverse countries were able to experience the beauty of hanbok. Won hopes that she could carry out more programs related to hanbok in the future as well and provide lessons as part of the Korean wave towards foreigners. Kim Seung-jun nzdave94@hanyang.ac.kr Photo by Kim Sang-yeon Photo by Moon Hana

2017-01 16 Important News

[Academics]Regulating Carbon Dioxide Emission from Automobiles

Tremendous amounts of carbon dioxide is released into air everyday, engendering chains of environmental and health problems. Human activities are profoundly culpable for such phenomenon, citing industrial processes, combustion of fossil fuels, and operation of power plants. Among a variety of sources of CO2, automobiles are responsible for 20% of the total emission. Further narrowing down the scope and focusing on light duty vehicles, Professor Park Sung-wook of the Department of Mechanical Engineering has researched and analyzed data about CO2 emissions and predicted possible decrease in the rate. In his paper “Development strategies to satisfy corporate average CO2 emission regulations of light duty vehicles (LDVs) in Korea,” Park elaborated on strategies to abate the enormity of CO2 emissions in the long run. Blueprint of possible consequences An international protocol demands each country to cut down its pollutant emission by a certain percentage, otherwise charging it with a fine. A country then assigns its corporates with a set reduction goal, as an attempt to attain its mission more efficiently. In his paper, Park predicted and analyzed the possible decreases in the rate of CO2 emission in terms of different categories of automobiles: electronic, hybrid, and diesel vehicles. He collected data from each automobile manufacture company about the number of sales of each type and calculated an estimation of how many of each type of vehicle must be sold and what portion of production of each type must be maintained in order to reach a set curtailment target. If the majority of drivers switch their cars to electronic vehicles, the amount of carbon dioxide released into the air will shrink substantially, thereby contributing to the fulfillment of the set goal. As for current situation, however, the supply of electronic cars is scanty. Therefore, aiming to reduce CO2 emission by encouraging the use of electronic cars is virtually futile. On top of this inefficient pace of progress, production of electricity augments the rate of CO2 emission not in the domain of transportation but in industrial manufacturing. Park explains that electric cars are not the ultimate solution in the long run. Consequently, excluding electronic cars, Park was left with diesel and hybrid cars. “There is a general misunderstanding that any type of cars that is not electronic is environmentally-harmful. Of course, when the vehicle is in operation, an electric car emits zero carbon dioxide. Yet, if you take a look at its fuel, electricity, power stations altogether expel about the equal amount of pollutant,” elucidated Park. Taking into consideration that diesel fuels contain more energy per liter than petroleum and hybrid cars burn less gas to cover the same distance than petroleum-run cars, the two models look ideal when it comes to seeing a positive effect in the long run. Shift in the perspective It has always been the politician’s task to place regulations on corporates in regard to cutting down the CO2 emission. Park took this issue and viewed it from the perspective of an engineer. “Environmental problems are not as simple as those with only superficial knowledge think. If one problem is solved, it has got to make another way to reproduce itself through other forms,” stated Park. “For instance, supposing that the world has adopted a policy to supply electronic cars and has stopped using diesel or other fuel-combustion-demanding cars, the situation will beget another problem. Production of electricity to fuel all the electronic cars will require just as much CO2 emission as running fuel cars, not to mention the vast discharge from factories for producing the cars themselves,” elaborated Park. In other words, in lieu of directly belching CO2 from the automobile itself, electric cars will indirectly lead to hatch of another problematic concern, which is the release of massive CO2 from electricity factories. Through his studies, Park realized that electric cars alone cannot solve the CO2 struggle, hinting more efficient engines in the future. Park strongly thinks that engineers, who possess the fundamental and indispensable information about technology and its impact on nature, should hold more influential authority in making environmental laws. “The essential difference between engineering and science is their practicality. Products of engineering could be measured easily with technology but that of science is not. Nevertheless, engineering has not been so influential in areas other than its own. I hope to see the outcomes of engineering research `reflected more in policies,” delivered Park. Park is planning to carry his research onto larger auotomobiles for future solutions. Jeon Chae-yun chaeyun111@hanyang.ac.kr Photos by Moon Ha-na