온라인 한국어교육에 대한 태도, 기대, 인식 연구 -온라인 세종학당 교원과 학습자 비교를 중심으로-

이민우 ( Lee¸ Minwoo ) 이중언어학회 2022 이중언어학 Vol.87 No.-

This study analyzed the attitudes, expectations and Awareness for online Korean language education for teachers and learners who participated in the online King Sejong Institute curriculum. As a result of the survey, teachers preferred offline education to online education and had lower attitudes and expectations for online Korean education than learners. Unlike teachers, learners showed no difference in satisfaction between online and offline education, and their attitudes and expectations toward online education were also high. It was found that well-prepared online classes can be satisfactory to learners through the learners’ high attitudes and expectations for online Korean education. In addition, it was confirmed that online education, like offline education, satisfies learners by operating an appropriate curriculum and providing high-quality materials, and can sufficiently contribute to the improvement of learners’ language ability. It was found that teachers, unlike learners, had difficulties in conducting online education and did not have much confidence in the effectiveness of education. In particular, they complained of a lot of anxiety and difficulty about the unfamiliar teaching method, which is interpreted as reflecting the attitude of teachers who are familiar with real-time education. From this point of view, it can be seen that it is most important to provide teachers with the ability to utilize online teaching tools and implement various online teaching and learning in order to conduct online Korean language education. If appropriate teacher education for online education, provision of educational materials, and system support are provided, it is expected that teachers’ attitudes and awareness of online education will also increase. (Cyber Hankuk University of Foreign Studies)

태음조위탕(太陰調胃湯) 약물 가감(加減) 원리

신승원,이지원,황민우,이준희,고병희,이의주,Shin, Seungwon,Lee, Jiwon,Hwang, Minwoo,Lee, Junhee,Koh, Byunghee,Lee, Euiju 사상체질의학회 2016 사상체질의학회지 Vol.28 No.3

Objectives This study aimed at proposing a hypothetical principle to add or abstract herbs for modifying Taeeumjowi-tang.Method Based on Jema Lee's literatures such as Dongyisusebowon and Dongyisasangsipyeon, we analyzed contents related to Taeeumjowi-tang and its modification. Moreover, we reviewed physiological and pathological pecularities of Taeeumin symptomatology and applied the theory to induce the principle of the modified Taeeumjowi-tang in Sasang medicine.Results and Conclusions 1) We have found 10 modified Taeeumjowi-tang from Dongyisasangsipyeon. 2) Mahwangjowi-tang (麻黃調胃湯), Gogijowi-tang (固氣調胃湯), Shingijowi-tang (腎氣調胃湯), Euiyiinjowi-tang (薏苡仁調胃湯), Gamijowi-tang (加味調胃湯), and Gyeongheomjowi-tang (經驗調胃湯) are modified for Taeeumin who have original symptoms of more severe cold tendency. Especially, Gogijowi-tang helps to circulate energy-fluid from esophagus to skin, while Shingijowi-tang directly aids the function of esophagus. 3) Seungjijowi-tang (升芷調胃湯), Seunggeumjowi-tang (升芩調胃湯), Seunggijowi-tang (承氣調胃湯), and Jowisokmyung-tang (調胃續命湯) are modified for Taeeumin who have originally cold symtoms, accompanied by heat tendencies. Especially, Seungjijowi-tang helps to eliminate mild heat existing throughout skin and flesh, while Seunggeumjowi-tang gets rid of severe heat swarming in the flesh parts. Seunggijowi-tang can take away the most severe heat symptoms in the whole body

Design of Low Cost Real-Time Audience Adaptive Digital Signage using Haar Cascade Facial Measures

Lee, Dongwoo,Kim, Daehyun,Lee, Junghoon,Lee, Seungyoun,Hwang, Hyunsuk,Mariappan, Vinayagam,Lee, Minwoo,Cha, Jaesang The International Promotion Agency of Culture Tech 2017 International Journal of Advanced Culture Technolo Vol.5 No.1

Digital signage is becoming part of daily life across a wide range of visual advertisements segments market used in stations, hotels, retail stores, hotels, etc. The current digital signage system used in market is generally works on limited user interactivity with static contents. In this paper, a new approach is proposed using computer vision based dynamic audience adaptive cost-effective digital signage system. The proposed design uses the Camera attached Raspberry Pi Open source platform to employ the real-time audience interaction using computer vision algorithms to extract facial features of the audience. The real-time facial features are extracted using Haar Cascade algorithm which are used for audience gender specific rendering of dynamic digital signage content. The audience facial characterization using Haar Cascade is evaluated on the FERET database with 95% accuracy for gender classification. The proposed system, developed and evaluated with male and female audiences in real-life environments camera embedded raspberry pi with good level of accuracy.

Reduced graphene oxide supported V2O5-WO3-TiO2 catalysts for selective catalytic reduction of NOx

Lee, Minwoo,Ye, Bora,Jeong, Bora,Chun, Hye-yeon,Lee, Duck Hyun,Park, Sam-sik,Lee, Heesoo,Kim, Hong-Dae Springer-Verlag 2018 Korean Journal of Chemical Engineering Vol.35 No.10

Environment Adaptive Emergency Evacuation Route GUIDE through Digital Signage Systems

Lee, Dongwoo,Kim, Daehyun,Lee, Junghoon,Lee, Seungyoun,Hwang, Hyunsuk,Mariappan, Vinayagam,Lee, Minwoo,Cha, Jaesang The International Promotion Agency of Culture Tech 2017 International Journal of Advanced Culture Technolo Vol.5 No.1

Nowadays, the most of commercial buildings are build-out with complex architecture and decorated with more complicated interiors of buildings so establishing intelligible escape routes becomes an important case of fire or other emergency in a limited time. The commercial buildings are already equipped with multiple exit signs and these exit signs may create confusion and leads the people into different directions under emergency. This can jeopardize the emergency situation into a chaotic state, especially in a complex layout buildings. There are many research focused on implementing different approached to improve the exit sign system with better visual navigating effects, such as the use of laser beams, the combination of audio and video cues, etc. However the digital signage system based emergency exit sign management is one of the best solution to guide people under emergency situations to escape. This research paper, propose an intelligent evacuation route GUIDE that uses the combination centralized Wireless Sensor Networks (WSN) and digital signage for people safety and avoids dangers from emergency conditions. This proposed system applies WSN to detect the environment condition in the building and uses an evacuation algorithm to estimate the safe route to escape using the sensor information and then activates the signage system to display the safe evacuation route instruction GUIDE according to the location the signage system is installed. This paper presented the prototype of the proposed signage system and execution time to find the route with future research directions. The proposed system provides a natural intelligent evacuation route interface for self or remote operation in facility management to efficiently GUIDE people to the safe exit under emergency conditions.

R-CRDSA: Reservation-Contention Resolution Diversity Slotted ALOHA for Satellite Networks

MinWoo Lee,Jong-Kwan Lee,Jae-Joon Lee,JaeSung Lim IEEE 2012 IEEE Communications Letters Vol.16 No.10

<P>In this letter, a reservation scheme with contention resolution diversity slotted ALOHA (CRDSA), called R-CRDSA, is proposed. Although CRDSA promises excellent performance compared to slotted ALOHA (SA), there are two barriers to be overcome for its use in satellite networks. The first is a low critical point of an offered load; i.e., at this point, as the offered load increases, the throughput will decrease. CRDSA has a lower critical point than that of SA. The second barrier is that CRDSA has a lower capacity efficiency compared to SA; i.e., on average, CRDSA requires more power or bandwidth than SA for transmission. R-CRDSA can overcome these barriers at the same cost as CRDSA, especially for multi-packet messages. The analytic performances are derived by the observation of the transition between two successive frames, and the average number of packets in a message. The simulation results show that the analytic derivations are valid, and they confirm that the barriers are resolved by R-CRDSA.</P>

Au ion-mediated self-assembled tyrosine-rich peptide nanostructure embedded with gold nanoparticle satellites

Lee, Namhun,Jang, Hyung-Seok,Lee, Minwoo,Kim, Young-O.,Cho, Hong-Jun,Jeong, Dae Hong,Shin, Dong-Sik,Lee, Yoon-Sik,Lee, Dae-Won,Lee, Sang-Myung Elsevier 2018 Journal of industrial and engineering chemistry Vol.64 No.-

<P><B>Abstract</B></P> <P>We report a gold ion-mediated self-assembled tyrosine-rich peptide (TRP) spherical nanostructure with gold nanoparticle (AuNP) satellites (YC<SUB>7</SUB>@Au<SUB>sat</SUB>). We clarified that non-reduced gold ions, coordinated with TPRs are not only one another critical driving force for TRP spherical self-assembly together with instant thermal transition, but also play a key role to determine the spherical shape of TRP nanostructures. Furthermore, the pH and the concentrations (buffer, peptides, and AuCl<SUB>4</SUB> <SUP>−</SUP>) are considered as important parameters to obtain optimal YC<SUB>7</SUB>@Au<SUB>sat</SUB> nanostructures. In addition, plasmonic properties of YC<SUB>7</SUB>@Au<SUB>sat</SUB> nanostructures were investigated for localized surface plasmon resonance (LSPR) and surface enhanced Raman scattering (SERS) applications.</P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

A Study on Touchless Panel based Interactive Contents Service using IrDA Matrix

Minwoo Lee,Dongwoo Lee,Daehyeon Kim,Myungsuk Ann,Junghoon Lee,Seungyoun Lee,Juphil Cho,Jaekwon Shin,Jaesang Cha 한국인터넷방송통신학회 2015 International Journal of Internet, Broadcasting an Vol.7 No.2

Touch panel is mainly applied to pressure type touch panel but it occur a low recognition rate and error during long-term use. So, it is partly applied to capacitive touch panel to compensate for these problems but it also can occur a same problems via pollutions. Touch technology has developed a various method but it is not used because of high costs and difficult installation process. So, in this paper, we proposed an input method of touchless panel using IrDA matrix. This method is conducted using an IrDA Matrix composed of depth sensor. It is possible to offer a various contents for multi user. The proposed technology need a development of a high sensitivity sensing method and high-speed processing method of position information for Seamless operation control. And, it is required high-precision drive technology. Also, we proposed a Seamless user recognition for interactive contents service through a touchless panel using IrDA matrix.

A Study on Touchless Panel based Interactive Contents Service using IrDA Matrix

Lee, Minwoo,Lee, Dongwoo,Kim, Daehyeon,Ann, Myungsuk,Lee, Junghoon,Lee, Seungyoun,Cho, Juphil,Shin, Jaekwon,Cha, Jaesang The Institute of Internet 2015 International Journal of Internet, Broadcasting an Vol.7 No.2

Touch panel is mainly applied to pressure type touch panel but it occur a low recognition rate and error during long-term use. So, it is partly applied to capacitive touch panel to compensate for these problems but it also can occur a same problems via pollutions. Touch technology has developed a various method but it is not used because of high costs and difficult installation process. So, in this paper, we proposed an input method of touchless panel using IrDA matrix. This method is conducted using an IrDA Matrix composed of depth sensor. It is possible to offer a various contents for multi user. The proposed technology need a development of a high sensitivity sensing method and high-speed processing method of position information for Seamless operation control. And, it is required high-precision drive technology. Also, we proposed a Seamless user recognition for interactive contents service through a touchless panel using IrDA matrix.

Environment Adaptive Emergency Evacuation Route GUIDE through Digital Signage Systems

Dongwoo Lee,Daehyun Kim,Junghoon Lee,Seungyoun Lee,Hyunsuk Hwang,Vinayagam Mariappan,Minwoo Lee,Jaesang Cha 국제문화기술진흥원 2017 International Journal of Advanced Culture Technolo Vol.5 No.1

Nowadays, the most of commercial buildings are build-out with complex architecture and decorated with more complicated interiors of buildings so establishing intelligible escape routes becomes an important case of fire or other emergency in a limited time. The commercial buildings are already equipped with multiple exit signs and these exit signs may create confusion and leads the people into different directions under emergency. This can jeopardize the emergency situation into a chaotic state, especially in a complex layout buildings. There are many research focused on implementing different approached to improve the exit sign system with better visual navigating effects, such as the use of laser beams, the combination of audio and video cues, etc. However the digital signage system based emergency exit sign management is one of the best solution to guide people under emergency situations to escape. This research paper, propose an intelligent evacuation route GUIDE that uses the combination centralized Wireless Sensor Networks (WSN) and digital signage for people safety and avoids dangers from emergency conditions. This proposed system applies WSN to detect the environment condition in the building and uses an evacuation algorithm to estimate the safe route to escape using the sensor information and then activates the signage system to display the safe evacuation route instruction GUIDE according to the location the signage system is installed. This paper presented the prototype of the proposed signage system and execution time to find the route with future research directions. The proposed system provides a natural intelligent evacuation route interface for self or remote operation in facility management to efficiently GUIDE people to the safe exit under emergency conditions.