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2017-01 02 Important News

[General][Op–ed] Where in Korea should we visit?

Although South Korea is part of a peninsula, it is quite hard to approach the sea for many. People love visiting the sea yet they get so little chance to see such a sight that would fill their eyes with joy. That is why I have set out on a journey to Busan to introduce some of the most beloved places in Busan. [Haeundae] This is probably one of the most famous places that people love to visit during the summer. Although there are some other famous beaches, Haeundae is continuously acknowledged as one of the hottest vacation spots in Korea where people become filled with excitement. Other than the beach itself, people love to visit the Busan Aquarium which is the largest in Korea. In addition, the Haeundae Cine road is one of the best places to take a photo overlooking the Gwangan bridge lit up at night time. Since the road is located around the shoreline introducing diverse movies that have been filmed in Busan, it would be a pleasable experience to visit the place for a walk after having dinner. Gwangan Bridge can be seen from the Haeundae Cine Road. Dongbaek Island is located right beside Haeundae and a lot of people visit the place since it is well known for its trail course. Also, the APEC house is located on Dongbaek Island where the APEC conference has been held in 2005 is open for free of charge from 9 a.m. to 5 p.m. Since there are great photo spots where Gwangan Bridge can be seen. [Centum City] This is the part of Busan where people visit for shopping and entertainment. The Guinness World Record holding department store for being the largest in the world, Shinsegae store is located in Centum City and inside the department store, there are diverse entertainment facilities such as the ice link, movie theaters, golf range, aqua land and so on. Apart from that, there is the Busan Cinema Center where Busan International Film Festival is held every autumn. Diverse types of films are on screen and at night, the place itself becomes a landmark as it lights up the whole roof with color. Busan Cinema Center and the Guinness World Record department store [Subyun Park] It is the first established park by the water in Korea located in the middle of Haeundae and Gwanganri. Although in the past, it used to be the sea, it has been created as a park in 1997 and it can accommodate 40,000 people. Filled with flower gardens, benches and shades, a lot of young people visit the place for drinking in summer and this is one of the hottest pick up spots in Busan. In addition, since it is so close to Gwanganri, it would be suggested that you take a walk at the beach as well. Subyun Park is one of the most beloved places by the younger generation. [Gamcheon Village] Some of the magazines that describe about this village refer to this place as the “Santorini in Korea”. Although it can’t be said that this village is as glamorous as Santorini, it has its own history. Gamcheon Village used to be the part of town where it has fallen behind and categorized as the low income settlement area. Starting with the 2009 village art project, a lot of houses and roads have been fixed and walls were painted. Since it is still a village where people’s houses are gathered together tightly, you should be careful not to violate their privacy especially in the summer when windows and doors are wide open. Gamcheon Village is still going through a lot of renovation. Apart from the places suggested, a lot of other special places exist in Busan such as the Busan tower, Songjeong beach where surfing lessons are taught, Dalmaji Hill, Songdo Skywalk, Taejongdae, Dadaepo and the list goes on. Having no special plans for the holiday season, I would strongly suggest that you visit Busan. Kim Seung-jun

2016-12 27 Important News

[Academics]Semi-Conductors for Convenience

Professor Park Jea-gun of the Department of Electronic Engineering is an expert in the field of semi-conductors, having researched it for 31 years now. His paper, “Effect of double MgO tunneling barrier on thermal stability and TMR ratio for perpendicular MTJ spin-valve with tungsten layers“, discusses the magnetic memory, which is a totally different type of memory device in the current market other than the DRAM (dynamic random-access memory) and the NAND (negative-AND) flash memory. As semi-conductors are made into smaller models, it becomes faster as the electric power it needs gets lower, and the cost to produce the model gets lower as well. In the world of IT, the reading and writing of information should get faster as time goes. But since there are limits to the current technology in reducing the size of the semi-conductors smaller than 10 nanometers, there have been attempts to make a different type of model that could replace the DRAM technology. Park explains about the magnetic memory being developed at HYU. Tohoku University (THU) in Japan came up with the idea of magnetic memory from which Hanyang University (HYU), along with Samsung Electronics, SK Hynix, and the Korean government invested 40 billion won to develop a semi-conductor research facility. There are only two other facilities that are able to produce such novel technology, which are in the United States and Belgium. Since the idea provided by THU was not a fully developed one, Park changed the material needed to produce it into tungsten. The result has been quite successful in that it can now be activated even at 400 degrees while what was proposed at THU could only hold up to 300 degrees. The original memory types used to have what is called a capacitor. By charging electrons in it or discharging it, the digital signal becomes 1 and 0 respectively. As for the magnetic memory, it has two magnetic layers. One has fixed electron while the other has a free one. In between the two layers, there is an insulation layer. The fixed electron always flows in the same direction while the free electron flows in the direction of the electric power. Once the two electrons are flowing in the same direction, more electric power flows and it has lower resistance, which reads data 0 state while the opposite means data 1. In other words, it can be said that the way to produce D0 and D1 is different from the original type in charging the electrons and discharging them, or by letting the electrons flow in either the same or opposite direction. The sizes of DRAM and NAND would be difficult to get smaller than 10 nm. (Photo courtesy of Park) Evidently, there are advantages to the magnetic memory in that the changes in the direction of flow of electrons are very fast. Charging and discharging capacitors take much longer and consumes more electric power as well. In addition, the capacitor needs a certain surface area, while this new form of memory gets faster as the size gets smaller. It can be said that this nano structure element is an absolute must when it comes to scaling down the size of memory storage. It is believed that this technology would be necessary in developing the internet of things, or IOT technology, once it has been stabilized. Magnetic memory has now been successfully installed onto a System on Chip (SoC). This technology is crucial for IOT technology, and it is predicted that the memory technology at this stage will not be in use by 2022 to 2025. Park wishes that his technology would make people's lives more easier. Park believes that by developing the original technology and being credited for the paper would eventually be a huge contribution to the Korean society where the semi-conductor industry accounts for about 5% of Korean GDP. Through his technology, Park aims to make people feel the comfort of advanced technology when it comes to our daily lives and the information-oriented era. Kim Seung-jun Photo by Kim Youn-soo

2016-12 26 Important News

[Culture]Freshman-Senior Discourse on University Life (152)

After several sleepless nights of studying, final exams are over at universities, and students are greeting their winter breaks. This also means that those who applied to and took exams to enter Hanyang University are receiving either acceptance or rejection letters. Two new freshmen of Hanyang University who are to enter the school in 2017, Kim Ye-hwan (Department of Natural Resources and Environmental Engineering) and Shin Ho-joong (Department of Computer Science and Engineering), had a discourse session with their seniors, Jung Da-eun (Department of Media and Communication, 3rd year), Park Yoo-kyung (Department of Natural Resources and Environmental Engineering, 2nd year), and Won Chang-hee (Department of Computer Science and Engineering, 4th year) and shared their expectations and worries about their upcoming university life. Q1. What are your expectations of university life? What are you curious about? Ye-hwan: I am definitely looking forward to getting one of those department jackets. I have seen a lot of students wear them and I was jealous. Now that I am accepted into Hanyang University, I’m excited to get my own. Ho-joong: Oh, yes. Additionally, I also thought of working on group projects with my friends overnight. To me, that sounds fun. But I heard some people aren't cooperative and are hard to deal with. I have big concerns about that. Da-eun: Actually, there are so many different types of people and it really just depends on who you team up with. It all differs case by case. Ye-hwan: What about making friends? How do you get close with people? I can't drink and I'm worried that not being able to drink will get in the way of socializing with people. Yoo-kyung: You really don’t need to worry about that much, because nobody will force you to drink. There will be a lot of occasions for you to socialize with people and you just need to have a lot of conversations to get to know them and become friends. Even if you go to a social gathering, you wouldn't be pressured to drink. It's all at your will! Chang-hee: I bet you guys are wondering about campus romance. It once was my dream, too. When I first entered university, I was awakened by reality because in engineering departments, the majority of students are guys. Nonetheless, you can still become campus couples if you join clubs or go to a lot of gatherings. Ye-hwan (left) and Ho-joong (middle) are talking about their impressions of Hanyang University. Q2. What were your biggest interests as a high school student? What influenced you to choose your major? Ho-joong: I used to play computer games very often since I was in elementary school. One day, my account was hacked and I was frustrated. I think that was the moment that made me spark an interest in computer science. I want to be skillful with computers so that I can protect my private accounts and prevent such mishaps. Nowadays, my interest is mostly on software and security systems. Ye-hwan: I didn't know what I was interested in, so when I entered high school, I was a bit lost. But I soon developed an interest in natural environment, and I was certain that I didn't belong in the humanities field. This is why I applied to the Department of Natural Resources and Environmental Engineering. Q3. Any ideas on choosing what to eat within or near the campus? Ho-joong: High school food was so-so. What about university cafeterias? Chang-hee: Food isn't so bad here. Since our campus is situated on a pretty steep hill, you will often feel reluctant to go down the campus just for lunch. If you do, then it is a long way back for most students. That is why I mostly prefer to go to school cafeterias. There are several school cafeterias throughout the campus and they aren't that bad. Most importantly, the price is reasonable and it saves you a lot of time and money if you eat in school cafeterias. Da-eun: Also, if you are a freshman, your seniors will treat you to lunch more than often. I don't remember paying for my own lunch when I was a freshman. I always had friendly seniors who treated me to nice lunches. In other words, you don't need to worry too much about looking for good places to eat around the campus. If you follow them around several times, you'll get an idea of where to eat. Yoo-kyung: If you are tired of school cafeterias, and are too lazy to go outside the campus, order some delivery food. It's very convenient and tasty. Da-eun, Chang-hee, and Yoo-kyung (left to right) are answering the juniors' questions. Q4. What do you like about Hanyang University? Ho-joong: I like how the subway is connected to the campus. I think that is the best advantage I have found so far. Yoo-kyung: Yes, definitely. The subway makes our lives so much easier and more convenient. Chang-hee: I also agree. Since our campus is big, you can find nice views here and there. The night view around the Humanities Building is especially remarkable. Ye-hwan: I think the school logo is impressive. The word ‘Hanyang’ in Korean, forming the the school’s mascot lion, is absolutely brilliant. Q5. Lastly, any other questions to ask? Ye-hwan: What are some recommendable clubs to join? Da-eun: There will be a few times throughout the school year when all the clubs promote themselves and recruit new members. As you'll see, there are a lot of different clubs that do various things. You can join as much as you can handle. Ho-joong: Are there any tips on making friends? Chang-hee: As long as you embrace the differences between you and your peers, you will have no trouble getting close to them. Similarly, you shouldn't feel too burdened about your seniors. Just try to be comfortable around them and your peers, and you'll be fine. After the discourse, they are cheering for their upcoming semester. Jeon Chae-yun Photos by Choi Min-ju

2016-12 19 Important News

[Policy]Newly Renovated Muslim Prayer Room

While South Korea is a country where churches are more frequently found, Islam is yet to be the most familiar religion. However, globalization has let more Muslims in Korea and there are increasing number of students among them. Hanyang University (HYU) is also going through a wave of globalization in terms of the ratio of students’ nations and religions. According to the Office of International Affairs (OIA), there are approximately 250 Muslim students studying at HYU this semester, who are from countries like Malaysia, Pakistan, and Saudi Arabia. Understanding the difference While the previous Muslim prayer room was established in 2006 inside Engineering Building II. HYU newly renovated the room on its 1st floor. “There are an increasing number of Muslim students at HYU now. “We could see that Muslim students are more prone to feel a greater cultural difference in Korea, compared to other international students. There were cultural differences that must be taken into account. It includes the fact that they must pray 5 times a day and they are forbidden to eat haram food,” explained Kang Yun-i (Manager of OIA). While the previous prayer room was intended to spare an independent room for Muslim students, the new one was made with the implementation of more requests and opinions suggested by Muslim students. “We sent all Muslim students an email about re-making the prayer room and asked for any requests they might have,” said Kang. Thanks to thoughtful consideration by the OIA, there is now separate water supply plant inside the prayer room and a curtain inside which separates men and women. “Wudu is a washing ritual that is required before practicing a service. All Muslims should wash themselves and make themselves clean before praying,” said Nor Amania binti Ruslan (Industrial Engineering, 2nd year). Ruslan (left) and Redza (right) are Muslim students from Malaysia. “Although we do pray together here, it is an original rule not to have men and women together when praying. Before I joined HYU, I had to search for places like parks or stairs to pray, which was rather inconvenient. I was really glad to find the prayer room inside the campus. I feel thankful that HYU took our needs into consideration to make things more convenient and comfortable for us,” said Muhammad Aqil Redza (Mechanical Engineering, 1st year). Other students also shared positive opinions about the renovation. “I think it is great that HYU is trying to progress along with the rise of Muslim students on campus. Such efforts can attract more Muslim students into the school. Also, I think students of diverse nationalities can help one another in widening their perspectives by experiencing different cultures,” said Park Gyung-duk (International Studies, 2nd year). Changes to the room reflected the needs of Muslim students. Besides the prayer room There are other places inside HYU which was also built for Muslim students. Muslims are not allowed to eat what is called 'haram' food. Instead, they are allowed to eat 'halal' food, which does not include any pork or dog meat. Other meats like chicken, beef, and mutton are edible only if the animal was killed by the rules of Muslims, which is to slaughter it in the least painful and fastest way, without being seen by other animals. It is said that even before killing it, Muslims should take good care of the animals as well. “Halal food offered in Sarang-bang in the Students’ Union building is an easy option for us to find where to eat iside the campus,” said Ruslan. Other than the halal food offered in Sarang-bang, there are also kitchens separately built in the students’ dormitory as well. The kitchen is used by Muslim students to cook food for themselves. The kitchen and the prayer room are managed by the dormitory office and OIA respectively. "OIA is glad to have the kitchen, the prayer room, and halal food that can help more Muslim students adjust well to HYU and Korea," said Kang. Muslim students are finalizing their prayer. Yun Ji-hyun Photos by Choi Min-ju

2016-12 18 Important News

[Academics]Improving the Bioavailability of Fruit Wastes

Professor Jeon Byong-hun of the Department of Earth Resources and Environmental Engineering has been studying and experimenting with the objective of increasing the bioavailability of food wastes through the process of biomass pretreatment, which is a part of the process of biofuel production. Specifically centralizing on the energy recovery of fruit peels and wastes, Jeon has successfully managed to increase the rate in which he derived the energy recovery from micro-algae to 46%. Considering that the record of deriving energy recovery from any types of biomass was 41%, he regards this result as a significant progress in increasing the bioavailability of biomass. Biomass and pretreatment Humans can take in food freely and absorb the nutrients through digestion, but microorganisms have a different means of doing so. Microorganisms must utilize organic matters and generate energy from them, which corresponds to the process of producing biofuel. In an aqueous solution, microorganisms make contact with organic matters and drag them inwards, meaning that the finer and more dispersed the organic matters are, the easier and more efficient a microorganism can derive energy from them. This gives rise to the concept of bioavailability, which plays an influential role in determining how much biofuel can be converted from organic matter to energy recovery. In other words, the form in which the organic matter is structured determines the bioavailability. In this context, the pretreatment of biomass can be a decisive step. Jeon explains that pretreatment of biomass plays a significant role. The form previously mentioned does not only come in the size of the organic matter but also in the type of the biomass. The three big categories of usable biomass are carbohydrates, lipids, and proteins. “Consider this example. When trying to formulate alcohol, which comes from carbohydrates, it would be optimal if the carbohydrate is uncombined with any other biomasses. If it is, then the microorganism will have less convenience in deriving energy from it- thus, decreasing bioavailability. It is only when the biomass is in the desired form that the microorganism will convert the most energy from the organic matter,” explained Jeon. Jeon and his laboratory researchers have been ultimately seeking to turn a variety of different biomass into various forms of bioenergy. “Making use of biomass such as fruit wastes, micro-algae, and food rubbish to extract the maximum amount of bioenergy in forms of bio-gas, bio-alcohol, and biodiesel has been our goal,” remarked Jeon. In a broader sense, his research includes turning the three big categories of biomass—carbohydrates, lipids, and proteins—into the most productive and accessible bioenergy. Jeon hopes to increase the bioavailability of biomass and convert them into sustainable, eco-friendly energy. Bioenergy and its advantages Jeon also shed light on the flexible versatility of bioenergy, putting emphasis on its convenience and portability. Unlike other forms of energy such as solar power, wind power or electricity, bioenergy is portable and storable. In the case of solar or wind power, the energy must be converted into forms of electricity and be put in a battery for storage and transportation. Electricity always necessitates cables, wires, and power transmission systems, whereas bioenergy is free from all these requirements. On the same note, petroleum, gas, and diesel could also be the most convenient forms of energy—satisfying both portability and storability—which is why it is being used worldwide. Nonetheless, the reason Jeon still argues for bioenergy is because of its eco-friendly aspect. “Research and development of bioenergy is an indispensable task for humans. Our perpetual goal is to devise the method of producing bioenergy with stability, drawing the most from the limited, given biomass. We must find a way to obtain bioenergy with sustainability, converting carbohydrates, lipids, and proteins into sustainable biofuels,” concluded Jeon. Microalgae being converted into biofuel in storable form. Jeon Chae-yun Photos by Moon Ha-na

2016-12 15

[Donation]'Hanyang Harmony' Supports Bicycle Donation Project in Vietnam

‘Hanyang Harmony’, the alumni volunteers of Hanyang University, provides bicycles to Binh Dinh Province in Vietnam as a donation project. Hanyang Harmony signed a business agreement with Seongsu Community Center, along with Seoul Bicycle Network and Seoul Province Self-sufficiency Center at Hanyang University Seoul Campus in Seongdong-Gu on the 15th. Four organizations will jointly ship second-hand bicycles that have been repaired at local self support centers in Seoul, and provide them to students in need at Tây Sơn District. Director Kim Yong-soo said, “the Binh Dinh Province is a deeply wounded area due to the Vietnam War. Following the various activities that have been started since 2014, we hope that this bicycle support project will convey the spirit of reconciliation, love and sharing to local residents.” ※Hanyang Harmony is a volunteer corps made by Hanyang university alumni in order to live up to its founding philosophy: ‘Love in Deed and Truth’. It was established in 2012 and was reorganized into a corporation entity in 2015. ▲From left, Executive Secretary of Seoul Province Self-sufficiency Center, Park Jin-soo, Manager of Seoul Bicycle Network Kim Kyung-mi, Director of Hanyang Harmony, Kim Yong-soo and Manager of Seongsu Community Center, Park Eul-jong

2016-12 11 Important News

[Academics]Structural Roles of gRNAs in the CRISPR-Cas9 System

Professor Bae Sang-su of Department of Chemistry is an expert in the field of CRISPR-Cas9 system, which recognizes target DNA with the help of two gRNAs (Guide RNA): tracrRNA (trans-activating CRISPR RNA) and crRNA (CRISPR RNA). DNA (deoxyribonucleic acid) is the carrier of genetic information which is the main constituent of chromosomes, and RNA (ribonucleic acid) is a messenger that carries instructions from DNA for controlling the synthesis of protein. CRISPR-Cas9 stands for Clustered Regularly Interspaced Short Palindromic Repeats, which relies on the protein named Cas9. Also known by the name of 'molecule scissors' that introduces mutations and changes into DNAs, Bae reveals the mechanism of the CRISPR-Cas9 system through his research paper, "Structural roles of guide RNAs in the nuclease activity of Cas9 endonuclease". Mechanism of the CRISPR-Cas9 system All living things are composed of cells and in them exist DNAs. Thus, if the mechanism of DNAs is feasible to be identified in every sequence, modifications or alternations in mutation become possible. Along with the development of artificial intelligence studies, research on the CRISPR-Cas9 system has recently been nominated as the momentous scientific work of the year by Nature Method, the most authoritative magazine in the chemical field. “This paper reveals the mechanism of how the CRISPR-Cas9 system can detect and modify the faulty areas of a given DNA. The process can be described as a surgical operation which should be performed precisely, since the surgeon has to accurately whittle down morbid parts of organs,” said Bae. Bae also remarked on the importance of research in the single molecule level. According to Bae, in order to utilize and apply the CRISPR-Cas9 system into remedying rare hereditary diseases or creating novel organisms, intricate research and experimentation in the rudimentary levels are crucial. “The process of experimentation took a little more than two years, until this research thesis was produced. I majored in physics, obtained a doctorate degree in chemistry, and this research I am currently working on biology. Convergence in science is needed because the biological application of the research mandates physical methodology and chemical materials,” said Bae. He also accounted for the process minutely that the physical methodology he employed was using razors to inquire into the fundamental states of the CRISPR DNA acting as molecule scissors to amputate the accurate parts of DNA. CRISPR-Cas9 cleavage activity with various mutated targets of DNA. (Photo courtesy of Nature) Legal regulation demands on research Although the research of CRISPR DNA embarked in 2013, the three-year study developed rapidly, that the legal regulations regarding the employment of CRISPR technology are not yet procured. “Now is the time to amend the laws considering the development of CRISPR research and bioethics. Regarding the current pace of research, application of the CRISPR DNA would take effect in 10 years, and if properly used, this technology is practicable to save a host of people, and also improve the quality of life,” added Bae. Referring to Bae, this field of science will change the world, in that the CRISPR molecule scissors can bring out alternations in humans, animals, plants, and even viruses. “The advent of DNA modification in all living things is becoming feasible. In the movie ‘Gattaca,’ the future world discriminates humans born naturally with recessive genes, as the ones with modified genes are considered dominant. As so, concerns regarding negative employments of CRISPR DNA are prevalent, and this adjures the judicial amendments to delicately take account for this technology,” said Bae. There are numerous advantages this technology accompanies: remedying hereditary diseases, protecting endangered animals, and plants, and more. Thus, in order to properly apply the technology to real life, the government should arrange for regulations rightfully, unlike the employment of nuclear power that entailed tragic courses. Professor Bae Sang-su emphasizes the significance of law amendments regarding the CRISPR-Cas9 technology. Promising developments Despite the short time span of research, in the course of three years, the South Korean research team is in the lead in CRISPR experiments and applications, along with the top five groups of the world, including Harvard, MIT, UC Berkeley and more. “The ultimate goal of my research team is to create ingenious and distinctive technology that is distinguished from other countries’ research teams,” said Bae. According to him, the South Korean research team is ahead of others in areas of CRISPR DNA investigation and application. In 2017, rice rectified through CRISPR modification will be made public, along with CRISPR DNA-rectified pigs. This will incite further developments in remedying diseases like cancer and other incurable diseases. In order to increase the spectrum of research applications, the South Korean government and experts from the fields of law and science are gathering to amend laws. There are advancements in the judicial and scientific joint consultations that will be initiated on December 21st, 2016, by the Korean Genome Editing Society. Kim Ju-hyun Photo by Moon Ha-na

2016-12 08

[General]Hanyang-UC Berkeley reexamines partnership contract

Hanyang University and UC Berkeley (U.S.) discussed reexamining partnership contract on November 15. President Lee Young-moo, on his business trip to the U.S., met Liu, Dean of Academic Affairs of UC Berkeley, and Professor Domizka Masayosi, Associate Dean of Academic Affairs of UC Berkeley. President Lee suggested expansion of bilateral exchanges by offering scholarship benefits on Hanyang summer school to students of Berkeley. If the proposal becomes concrete, the possibility of expanding a wide range of exchanges between the two parties will be increased. Moreover, a meeting with the members of Global Social Venture Competition (GSVC), an organization formed by Berkeley MBA students, was held. President Lee and Lee Gi-jeong, Vice President of International Affairs, also had a meeting Hanyang alumni Ha Hyun-dong (Chemical Engineering, '06) and Park Chang-yoon (Mechanical Engineering, '08) who are working on their master’s and doctor’s degrees at UC Berkeley. UC Berkeley is a public university located in California, USA, with 38,000 enrolled students. It manages to operate 7,000 lectures 300 majors. 29 Hanyang faculty members are graduates of Berkeley. ▲President Lee Young-moo in a meeting with official members of UC Berkeley.

2016-12 05

[Academics]Earthquake Spectra and Sound Structures

Professor Han Sang-whan of Department of Architectural Engineering is an expert in the field of earthquake and structural engineering. “More recently from the earthquake that hit Gyeongju on September 12th this year, there is an increasing awareness regarding the safety of buildings,” said Han. Thus, he has been researching on improving the standards of buildings before and after it is constructed. His recent papers, “Effect of connection rotation capacities on seismic performance of IMF systems” and “Building Height Limits for Steel Intermediate Moment Frames” specifically shed light on enduring an earthquake's seismic power. Accurate prediction of seismic loading and production There are three different steps to the research when it comes to evaluating a building’s performance regarding its safety. “First, it is essential to predict and calculate accurate magnitude of an earthquake force when one is trying to build a building at a specific place,” said Han. The research used the program that predicts possible earthquake activities and its effect on other different regions within Korea. It is able to do so as the program considers all the past earthquakes which occurred in Korea, all differing in location and magnitude. With this program model that shows the scale of magnitude that affects farther locations, it is able to anticipate other possible earthquakes and their effects. An example of a simulated ground motion due to the Gyeongju earthquake. (Photo courtesy of Han) Developing an analysis model to evaluate the safety of a building The next step is also critical, which is to establish a precise analysis model to evaluate a seismic performance of a building. It is important to know whether a structure is capable of enduring the effect of earthquake. “It can be done by an experiment in a lab, but it is hard to do so with large buildings due to its size and financial issues. As an alternative, an analysis model can be used as an alternative to evaluate instead through a computer program,” said Han. It is crucial for the analysis model to be on the point to exactly evaluate other buildings’ performances. “One of the top priorities of a building when an earthquake hits, is to prevent loss of human lives. Thus, the analysis accurately predict responses of buildings structure subjected to not only small earthquake ground motion but also large earthquake ground motion causing the buildings to collapse,” said Han. Such analysis model is based on the conventional mechanics theory. But the theory itself cannot solely explain the rotation capacities of various factors inside a building due to the complexity of the components and their connections of building. It is therefore necessary to conduct experimental tests for the component of building structures to develop and improve analysis models for every parts of the building. Experiments of different parts of components are also combined to make analysis models more accurate. (Photo courtesy of Han) Last but not least, by using the developed analysis model and seismic force, it is able to evaluate the safety of a building towards an earthquake. The method of evaluating the seismic performance of a building has been developed, which can accurately assess the safety of the building both before and after it is constructed. Within the flow of Han’s research, the paper specifically contains an experiment on this level, which is evaluating the seismic performance of IMF (Intermediate Moment Frames) with connections having a rotation capacity of 0.02 radian. To put it easily, as mentioned above, it refers to the moment connections of a building and 0.02 radian is a designated minimum rotation capacity of moment connections that was defined by US seismic design standard AISC 341-10(a model standard of Korean seismic design). Through the research and experiments went on, it was observed that the rotation capacity of 0.02 radian could not successfully guarantee the satisfactory seismic performance of IMFs. Thus, the paper suggested the number of rotation capacity to improve the safety standard. The following research that Han and his co-researchers are committed to is quite promising, as it is currently being introduced to the architectural standards of the US. “We hope our research could later motivate domestic buildings to meet safer standards,” concluded Han. "I hope my research could contribute to the making of a safer world against earthquakes." Yun Ji-hyun Photo by Choi Min-ju

2016-12 04

[Event]'Butterfly, Spring, Dream', a Play

“One day, a butterfly comes to you. It invites you to a fantasy world where the ice prince lives. One long, long night in midwinter, a journey full of fantasy comes to you like a dream…” (Excerpt from the play, 'Butterfly, Spring, Dream') Students from the Department of Theater and Film brought their creativity into action by showcasing a live musical play called 'Butterfly, Spring, Dream'. The event was held for four days from December 1st to the 4th at the Blackbox Theater of Hanyang University's Olympic Gymnasium in Seoul. The play was a unique one, having both international and Korean students as main actors and generating dynamic acts through dances and live band music. A girl in a dream Above is a brochure of the play. Briefly, the play is a fantasy journey that begins when one girl, who wants to escape, is drawn into an unknown world by a butterfly. In depth, the plot revolves around two worlds, a cruel reality contrasted by a fantasy world depicted by a dream. The protagonist, Lam Tsz Yan (Department of Theater and Film, 2nd year), acts as herself in the play, and she experiences extreme stress after failing to adapt to the foreign place where she studies. Later, a butterfly, acted by Wang Mei Yi (Department of Theater and Film, Graduate School), guides Lam through stages of dreams to help her find courage in reality. The story was inspired by both Korean and Chinese mythologies, creating a mysterious oriental fantasy overall. The producer of the play, Shin Min-kyung (Department of Theater and Film, 4th year) described the production process of 'Butterfly, Spring, Dream'. “The reason why we chose to do a play with music is because we thought it was more important to focus on the visualization and sensuality instead of the actual language and dialogues.” To overcome the language limitations of international students, the play portrayed the message through creative dancing and detailed stage-setting. The ingenious feature of the play was the live band and percussionists seated behind the stage, playing music throughout the scenes. The music and choreography were all created by the students from scratch. Therefore, it formulated a musical-like atmosphere, pulling the audience into the fairytale, or more precisely, the 'butterfly tale'. Global workshop “Students who were involved in the play are all part of the ongoing program called the Global Workshop, which was created for international students,” said Hong Sang-hyeon, the stage manager and actor. “Therefore, we can say that the play is part of the Global Workshop.” Due to an increased number of international students through international exchange programs, the Department of Theater and Film actively participated in cultural exchange through a collaboration of plays. A total of 20 students from China, New Caledonia, Guatemala and many more, worked with the Korean students in the play. Shin, the director, said, “This specific play aimed to depict identity issues caused by growing globalization. I think the audience can easily relate to the story because the message sheds light on those who are under pressure in any form of new environment, not just in an international setting.” The play generated an exotic atmosphere for the audience. (Photo courtesy of the Dept. of Theater and Film) The cast were composed of both Korean and international students. (Photo courtesy of the Dept. of Theater and Film) In the early stage of production, there were some concerns regarding communication due to the difference in cultures among the international group of students. However, this concern only remained a small worry as the actors coped with the communication problems through numerous practices together for perfect harmony. Lam, from China, said, “For me, it was the first time to act on a stage and I had lots of pressure to do well. I was quite like the character I played in the play. Thankfully, other Korean students, who had more experience, helped me by teaching me all about the theater arts from the basics. I had lots of fun!” The male protagonist, Kim Lok-yon (Department of Theater and Film, 4th year) also recalled the time he spent preparing for the play. “It was a new experience for me as I worked with the international students,” said Kim. “When they asked for help, I only advised them to act naturally. As a student, I am in no position to teach someone else. I taught them the correct pronunciation of Korean words actively.” (From the left, respectively) Wang, Lam, Kim, and Hong have all participated in the play as actors. International unity 'Butterfly, Spring, Dream' attracted many international audiences, resulting in a complete sellout for all four days. Even though the play was mostly in Korean, there were Chinese subtitles provided on the side of the stage to assist the Chinese audience. The ongoing success of the plays by the Department of Theater and Film indicates the high quality of the performances. More importantly, the global mentality of the students generate more than just success as students learn to cooperate with people from different cultures to share a message on international unity. “Here it comes. The fated moment. Finally, after the long, long wait of three thousand years, when the permanent snow that nobody thought would melt… If a flower blooms, the ice will melt and you will fulfill your hope.” (Excerpt from the play, 'Butterfly, Spring, Dream') Park Min-young Photos by Choi Min-ju