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2016-11 01 Important News

[Academics][Researcher of the Month] Professor Paik Un-gyu

Professor Paik Un-gyu of the Department of Energy Engineering is November's Researcher of the Month for his active role in exploring the field of energy engineering. Recently, he has led a research team in developing significant improvement of sodium-ion batteries (SIBs), explained in the paper, 'SB@C coaxial nanotubes as a superior long-life and high-rate anode for sodium ion batters'. This specific study focuses on ways to increase the efficiency of the sodium-ion battery, which can possibly replace the popular lithium-ion batteries. Paik spoke about his study as well as his experience as a professor. (Photo courtesy of Paik) “There are other excellent professors who deserve this honor for than me. Yet, I am still very thankful for it,” said Paik. “The research was about sodium-ion batteries, which is rarely known to the public. The main objective was to reduce problems and improve effectiveness of sodium-ion batteries to replace lithium-ion batteries in the future.” Currently, lithium-ion batteries are commonly used in various electronic devices including smartphones. However, the main problem of lithium-ion batteries is the cost of lithium itself. There are certain limits for the Korean government to secure enough lithium mines from overseas. Therefore, a more parallel, affordable solution is to replace lithium with sodium in making ion batteries. Similar to lithium-ion batteries, sodium-ion batteries have issues of rapid operating-capacity fading due to large volume expansion during sodiation. Sodiation is the process of using sodium for a battery. Smartphone batteries bubbling up like a balloon is an example of volume expansion in lithium-ion batteries. “To reduce volume expansion, we tuned the morphology and structure at the nanoscale using carbonaceous materials as the buffer layer,” explained Paik. “Hence, a carbon-coating with a thermal reduction strategy was developed to create a unique tube-like structure, known as Sb@C coaxial nanotubes.” In other words, the hollow space within the specially-created tube can make space available for the accommodation of volume expansion. Another way to increase sodium-ion batteries' efficiency is to improve the charge and discharge system. The charging speed of a battery depends on electron conduction; how fast electrons move within its electric field. Carbon-coated nanotube, a conduction material, allows the conduction of electrons to quicken and enables diffusion to take place, making both sides of the tubes accessible for the charging system. Therefore, by reducing the risk of volume expansion and enhancing the charge system, sodium-ion batteries can be applicable in replacing lithium-ion batteries. The nanotube enhances the quality of sodium-ion batteries. (Photo courtesy of RSC Publisher) Other than this specific study, Paik has contributed immensely in researching applicable, practical studies of nanoparticles and nanodevices used in semiconductors. Most of his studies focus on what can be done to improve technology by working with industries in various sectors. “I personally believe that the reason why I am a researcher is to find practical ways to help the society. The fundamental studies are also important, but I tend to use the basic principles to apply them to real and effective technology,” said Paik. His passion for energy engineering has led him to become one of the professors to have published the most research papers at Hanyang University. Like his accomplishment in energy engineering research, Paik emphasized the need for passion for students who strive for success. “Today, we are facing a more skill-intensified society where work requires advanced expertise in an area. As learners, students must have passion for studying,” said Paik. “Even though the society is rapidly changing at each moment, if students take consistent steps through learning, it can be a strong benefit for them once they have amassed required knowledge.” As a professor, Paik has guided many students in taking the same steps that he himself has gone through for the past 24 years of learning and researching. “In science, understanding the boundaries of each important experiment is necessary, which must be overcome to produce an outcome. Likewise, I hope my role as a professor can assist students to overcome those limitations.” As a professor, Paik guides students to strive for success. (Photo courtesy of Paik) Park Min-young

2016-10 03

[Academics]How Students Engage in Class

Professor Jang Hyung-shim of the Department of Education recently published a paper titled “Why students become more engaged or more disengaged during the semester: A self-determination theory dual process model.” She was consequently nominated as Researcher of the Month at HYU. Professor Jang's achievement lies in understanding the motivational processes of student learning and how it is affected by social contexts. More specifically, the research focuses on the relationship between instructors’ motivation styles and students’ functioning abilities in the classroom. Jang, an experienced expert in the specific field of study, spoke about the cause-and-effect relationship between the two subjects. Instructors, specifically school teachers, play a crucial role in student behavior and participation in academics. There is a common understanding, based on past studies, that if the instructor is more authoritative, teaching based on strict rules and procedures, student involvement in class decreases. In contrast, if the instructor provides more autonomous support in education, then students tend to be more engaged in class. The autonomous teaching method emphasizes freedom in a classroom, allowing creativity and critical thinking to flourish. Thus, in this specific study, Jang proposed a new perspective, a dual process model, in the existing self-determination theory. Guiding Jang’s research as a theoretical base, self-determination theory explains how students learning through self-motivated or autonomous learning increases their engagement in class. “The special finding in this research is in the dual process model. We have found out that for an individual student and an instructor, there are two ways in which they are affected by each other,” explained Jang. “For example, students’ engagement in learning can be explained by their experience of week-to-week gains in their need satisfaction guided by the instructor.” In short, the need satisfaction concerning a single student is achieved through autonomous support of instructors. Need frustration or disengagement, on the other hand, is the result of an authoritative instructor. Thus, the dual process within an individual student is shown, totally influenced by social context, which is the relationship with the instructor. Jang is an expert in education who has published numerous papers on improving the education system. Moreover, the findings confirm the existence of reciprocal causality in the classroom. “The reciprocal relation between authoritative teaching and student disengagement is quite strong, as controlling teachers lead to disengaged students and disengaged students lead to controlling teachers,” said Jang. “The reciprocal relation between autonomy-supportive teaching and student engagement is there, but is less strong.” This interesting relationship between students and teachers demonstrates the intertwined roles that influence each other either positively or negatively. “The research was completed using a three-wave longitudinal research with 366 high school students in Seoul participating. A questionnaire was given to each them three times at different points throughout the semester,” said Jang. The questions included a statement of consent, measures to assess the need satisfaction and need frustration, as well as autonomy support and teacher control. After the second stage of data analysis, the results showed the current finding based on the information collected. Jang believes that the results of this study has a lot to offer to both the students and teachers. “The teachers must improve styles of motivation based on two distinct skills. One of them is to have more supportive autonomy and the other is to be less controlling. Also, students must realize that classroom disengagement affects teachers’ motivating style toward them, and this is a rather strong effect,” said Jang. “So if your teacher is oppressive toward you, one reason may be because you are manifesting strong disengagement.” Thanks to the effort of researchers like Jang, necessary improvements continue to proceed in the Korean education system. In that sense, Hanyang University also stands as a leading global institution that is open to change and reform. This study will guide the Korean educational system towards a new transformation. Park Min-young Photos by Choi Min-ju

2016-09 30

[Media Briefing][Korea Times] Hanyang boosts academic-industrial ties

On September 20th, <Korea Times> publishes an interview of Hanyang University President Lee Young-moo. At a recent interview at his office on the university's campus in Seongdong-gu, Seoul, President Lee has committed to beefing up academic-industrial cooperation to develop technologies and transfer them to businesses. In fact, Hanyang has earned a combined total 27.6 billion won ($25 million) over the last decade in technology transfers, which is the highest among local universities. Also, President Lee has mentioned that university should serve the community and contribute to social welfare besides playing a role of higher education institute that teaches students and conducts researches. ▲ September 29th <Korea Times> Page 14 ▲ September 29th <Korea Times> Page 15

2016-09 21

[Student]‘Yonadab,” a Play

For about twelve days from August 17th through 28th, the 2016 H-STAR Festival, a nationwide university drama and musical competition, was hosted by the Hyundai Motors Group and Kore Association of Performing Arts Producers (KAPAP). The drama team ‘Yonadab’ comprised of students from the Department of Theater and Film of Hanyang University (HYU), shined brightly in the competition by winning both the grand prize and production prize in the drama sector. To celebrate this great achievement, the Internet Hanyang News (IHN) interviewed the winner of the production prize and the two main actors in the drama, ‘Yonadab.’ ▲ Chang Ji-soo (Department of Theater and Film ’15), Kim So-hyun (Department of Theater and Film ’13) and Oh Kyung-joo (Department of Theater and Film ’11) A Story in the Bible The entire crew of ‘Yonadab’ worked together to produce a brilliant performance in the H-STAR Festival. Yet, the three members of the team, Kim So-hyun (Department of Theater and Film ’13), Oh Kyung-joo (Department of Theater and Film ’11), and Chang Ji-soo (Department of Theater and Film ’15) have shown exceptional talents as director and as actors. Kim was the main director of the play, who won the best production prize in the competition. Also, Oh and Chang played the two main characters in “Yonadab,” Yonadab and Tamar respectively. ▲'Yonadab' is a historical play created based on a story of King David in the Old Testament, the Bible. (Photo courtesy of 'Yonadab' crew) The play, “Yonadab,” was originally written by renowned English screenwriter, Peter Scaffer. He wrote plays like “Amadeus” and “Equus.” The story is based on a famous tale from the Old Testament of the Bible, specifically in the time during King David’s reign. Yonadab was King David’s nephew who denied the existence of God and its influence on the Israelites. Trying to disprove the power of God by destroying King David’s family, Yonadab tempted one of the sons of King David, Amnom, to rape his stepsister, Tamar. The tragedy led to a domestic war between Amnom and Absalom, Tamar’s brother, and eventually to the destruction of family relationship. The play focuses on the emotional and spiritual aspects of Yonadab who struggles between good and evil. Thankfully, the crew successfully performed the exorbitant play, a result of the hard work on and off stage. The reporters of IHN probed deeper to hear about their story behind the scenes. Q. How do you feel about winning the grand prize? Kim – “Two years ago, I participated in the same competition as one of the crew members. Unfortunately, we were not able to win any awards. However, I am amazed that we were able to win both the grand prize and production prize this year. I wouldn’t have felt great by just winning the production prize myself, but since we won the grand prize as a single team, I am proud of all of the members.” Oh – “Our crew spent about six months for the final performance and I feel like the hard work has paid off. I am grateful for the crew members and the professors who have spent late nights preparing for the play with the crew.” Chang – “This was my first official performance in a play and I was very nervous about how it would turn out. Thanks to the help of the fellow actors, the director, and backstage crew, I was able to do well in acting Tamar. I am very glad we won the grand prize.” Q. Can you tell us about the process in creating the play? What were some of the difficulties? Kim – “As the director of the play, I had to look over the entire crew which included acting, stage setting, make-up and many more. I was involved in all meetings regarding the play and it was important for me to make sure the team agreed on the details of the play. One of the difficulties before the actual performance was the difference in stage size- the competition stage and the stage we practiced on at school. We had to reduce the number of crops used in the play in order to make sure it fit within the performance stage. The hardest part of all was doing that within ten hours before the performance!” Oh – “Since I played the main character of the play, my job was to understand completely who Yonadab is and to sympathize with his feelings. To do that, I spent most of my time reading the script and taking detailed notes on it to make sure every scene would look as if a real Yonadab had come into existence onstage.” Chang – “I learned to have faith in the other actors on stage while preparing for the play. Because I have never experienced the new role of Tamar which required seductive and sexual expressions in acting. There were times when I struggled emotionally on and off the stage. However, the professors and actors, including Oh, supported me to endure it and to perform to my full potential.” Q. How will this experience, as being part of the winning play, help you in the future? Kim – “As a senior waiting for graduation and director of many plays, I was uncertain whether I was capable of pursuing what I had done so far at HYU after leaving. However, the experience at this year’s H-STAR Festival has given me confidence to continue the job in producing plays after graduation. It will be an unforgettable event for me.” Oh – “Dramas and plays lead me in life- it throws important life questions that I need to consider. They correlate intimately with my decisions. For example, ‘Yonadab’ makes us think about the conflicting ideas of faith and distrust which we encounter in daily matters. Therefore, through the play, I have learned that it gives us opportunity to consider our life and to help us make decisions. It is like a signpost that guides us through the way.” Chang – “As I mentioned earlier, this was my first performance. Being a part of the winning play might be a perfect start to my acting career. Yet, I want to make sure that I always remember the effort and the time I have put into this piece to keep me going in future projects. I have attached the poster and the script on the walls of my room for me to remember it all.” Q. What does a ‘play’ mean to you? Kim – “A play helps us to understand what it is like to live because it is a story, whether my own or someone else’s. It is interesting to hear and learn about the many stories that unfold within a play. Therefore, it is like a teacher to me, helping me to understand the world.” Oh – “It is what I love and what I enjoy the most. Simply, like the word, “play,” it is like playing my favorite game. I am not acting in a play because I have to but because I enjoy it with my heart.” Chang – “A play provides me with a space to act in as much as I want and by doing that, I feel l alive. Without plays, I wouldn’t have been able to feel such a lively sensation, expressing different emotions and pouring it out on stage.” Reason for Success The Department of Theater and Film at Hanyang has a rich history of producing skilled actors and producers in the current field of media and theater. These successful phenomena can be explained by the everlasting support and work of past graduates, current professors, and active students who form a sound unison in planting seeds in developing the department. Just by looking at the act of the ‘Yonadab’ crew members and Kim donating the prize money to the school department, there is a reason why the team has gained such glory through the competition and why the school is proud of them all. ▲ The three interviewees did not forget to mention that the entire crew, from actors to staff members, worked hard together for the performance. Park Min-young Photo by Kim Youn-soo