http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Ryu, Boram,Lee, Young Tack,Lee, Kwang H.,Ha, Ryong,Park, Ji Hoon,Choi, Heon-Jin,Im, Seongil American Chemical Society 2011 NANO LETTERS Vol.11 No.10
<P>For the first time, we demonstrated photostable and dynamic rectification in ZnO nanowire (NW) Schottky diode circuits where two diodes are face-to-face connected in the same ZnO wire. With their properties improved by H-doping from atomic layer deposited Al<SUB>2</SUB>O<SUB>3</SUB> passivation, our ZnO NW diode circuits stably operated at a maximum frequency of 100 Hz displaying a good rectification even under the lights. We thus conclude that our results promisingly appoached one-dimensional nanoelectronics.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/nalefd/2011/nalefd.2011.11.issue-10/nl202239c/production/images/medium/nl-2011-02239c_0004.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/nl202239c'>ACS Electronic Supporting Info</A></P>
터키어권 한국어 학습자를 위한 ‘-고, -어서’의 의미지도 모형 연구 : Ip과의 대조를 중심으로
류보람(Ryu, Boram),정해권(Jeong, Haegwon) 한국외국어교육학회 2021 Foreign languages education Vol.28 No.2
This paper analyzes the Korean conjunctives -ko and -ese, and the Turkish converb -Ip, which have various meanings, and reveals their similarities and differences visually using the semantic map model. -ko and -ese are learned at the beginner level but Turkish learners have shown many errors. Those two Korean conjunctives express different temporal meanings, however, the corresponding Turkish converb expressed them in a single form. Korean textbooks have introduced the meanings of -ko and -ese as [sequential] and [continuous], but it can be made more confusing for learners by presenting the meaning using the same term. Therefore, it is necessary to teach the meanings of the two connectives in more detail according to their syntactic characteristics. Since most textbooks of Korean do not clearly present the differences between the -ko and -ese, effective teaching methods for Turkish-speaking learners based on the Focus-on-Form approach are proposed. To teach the conjunctives -ko and -ese, distinguishing between features of different meanings and to recognize those differences is encouraged.
Determination of Optimum Threshold for Accuracy of People-counting System Based on Motion Detection
Ryu, Hanseul,Song, Junho,Lee, Boram,Lee, Kiyoung Korean Society of Environmental Health 2015 한국환경보건학회지 Vol.41 No.5
Objectives: A people-counting system measures real-time occupancy through motion detection. Accurate people-counting can be used to calculate suitable ventilation demands. This study determined the optimum motion threshold for a people-counting system. Methods: In a closed room with two occupants moving constantly, different thresholds were tested for the accuracy of a people-counting system. The experiments were conducted at 150, 300, 450 and 600 lux. These levels of brightness included the illumination levels of most public indoor areas. The experiments were repeated with three types of clothing coloration. Results: Overall, a threshold of 16 provided the lowest mean error percentage for the people-counting system. Brightness and clothing color did not have a significant impact on the results. Conclusion: A people-counting system could be used with threshold of 16 for most indoor environments.
Ryu, Jae Ryun,Kim, June Hoan,Cho, Hyo Min,Jo, Youhwa,Lee, Boram,Joo, Sunghoon,Chae, Uikyu,Nam, Yoonkey,Cho, Il-Joo,Sun, Woong The Royal Society of Chemistry 2019 Lab on a chip Vol.19 No.2
<P>Neurons reach their correct targets by directional outgrowth of axons, which is mediated by attractive or repulsive cues. Growing axons occasionally cross a field of repulsive cues and stop at intermediate targets on the journey to their final destination. However, it is not well-understood how individual growth cones make decisions, and pass through repulsive territory to reach their permissive target regions. We developed a microcontact printing culture system that could trap individual axonal tips in a permissive dot area surrounded by the repulsive signal, semaphorin 3F (Sema3F). Axons of rat hippocampal neurons on the Sema3F/PLL dot array extended in the checkboard pattern with a significantly slow growth rate. The detailed analysis of the behaviors of axonal growth cones revealed the <I>saccadic</I> dynamics in the dot array system. The trapped axonal tips in the permissive area underwent growth cone enlargement with remarkably spiky filopodia, promoting their escape from the Sema3F constraints with straight extension of axons. This structured axonal growth on the dot pattern was disrupted by increased inter-dot distance, or perturbing intracellular signaling machineries. These data indicate that axons grow against repulsive signals by jumping over the repulsive cues, depending on contact signals and intracellular milieu. Our study suggests that our dot array culture system can be used as a screening system to easily and efficiently evaluate ECM or small molecule inhibitors interfering growth cone dynamics leading to controlling axonal growth.</P>
Kim, Boram,Choi, Joonhyeok,Ryu, Kyoung-Seok Korean Magnetic Resonance Society 2019 Journal of the Korean Magnetic Resonance Society Vol.23 No.4
Many proteins are expressed as an insoluble form during the production using Escherichia coli (E. coli) system. Although various methods are applied to increase their amounts of soluble expression, refolding is the only feasible way to obtain a target protein in some cases. Moreover, protein NMR experiments require <sup>13</sup>C/<sup>15</sup>N-labeled proteins that can only be obtained from E. coli systems in terms of cost and technical difficulty. The finding of appropriate refolding conditions for a target protein is a time-consuming process. In particular, it is very difficult to determine whether the refolded protein has a native structure, when a target protein has no enzymatic activity and its refolding yield is very low. Here, we showed that 1-dimensional <sup>1</sup>H-<sup>15</sup>N heteronuclear single quantum correlation (1D <sup>1</sup>H-<sup>15</sup>N HSQC) experiment can be efficiently used to screen an optimal condition for the refolding of a target protein by monitoring both the structure and concentration of the refolded protein.
Determination of Optimum Threshold for Accuracy of People-counting System Based on Motion Detection
Hanseul Ryu,Junho Song,Boram Lee,Kiyoung Lee 한국환경보건학회 2015 한국환경보건학회지 Vol.41 No.5
Objectives: A people-counting system measures real-time occupancy through motion detection. Accurate peoplecounting can be used to calculate suitable ventilation demands. This study determined the optimum motion threshold for a people-counting system. Methods: In a closed room with two occupants moving constantly, different thresholds were tested for the accuracy of a people-counting system. The experiments were conducted at 150, 300, 450 and 600 lux. These levels of brightness included the illumination levels of most public indoor areas. The experiments were repeated with three types of clothing coloration. Results: Overall, a threshold of 16 provided the lowest mean error percentage for the people-counting system. Brightness and clothing color did not have a significant impact on the results. Conclusion: A people-counting system could be used with threshold of 16 for most indoor environments.
연속 가로 경관에 있어서 경관 변화 인식에 영향을 주는 물리적 요인에 관한 연구
양보람(Yang, Boram),류중석(Ryu, Joongseok Joseph) 한국도시설계학회 2016 도시설계 : 한국도시설계학회지 Vol.17 No.6
가로 경관이 변화함에 따라 보행자는 다양한 이미지와 형태를 경험하게 된다. 본 연구의 목적은 경관 변화 인식에 영향을 주는 물리적 환경의 요인을 도출하는 것이다. 설문조사 및 동영상 실험으로 인사동길에서 경관 변화 인식에 영향을 주는 물리적 요인을 도출하였다. 또한, 도출된 물리적 요인과 현황 조사를 통해 인사동길의 경관 변화 인식에 영향을 주는 요소를 다중회귀분석을 실시하였다. 분석결과 경관 변화를 인식함에 있어서 좌 · 우측 교차가로의 폭이 넓어질수록, 인식지점과 교차가로와의 거리가 가까울수록 경관 변화를 더 많이 인식하는 것으로 나타났다. 좌 · 우측 건축물의 평면길이는 작을수록, 주가로와 교차거리의 직선거리는 가까울수록, 가로 폭은 좁을수록 경관 변화를 더 많이 인식하는 것으로 나타났다. 또한, 시계영역 중 정면영역이 다른 영역보다 경관 변화 인식에 더 큰 영향을 주는 것으로 나타났다. 마지막으로 하늘 및 건물이 차지하는 비율이 증가할 때, 도로인공물, 간판, 지면의 비율이 감소할 때에 경관 변화 인식에 영향을 미치는 것으로 나타났다. 기존 연구가 관찰자 중심의 분석이라면 본 연구는 보행공간에서 경관 변화인식에 영향을 주는 물리적 요소를 행위자의 관점에서 분석했다는 점에서 의의가 있다. With the change of streetscape, pedestrians experience various images and physical environments. The purpose of this study is to derive factors of the physical environment affecting recognition of streetscape change. Thus, surveys and video analyses were used to derive physical factors influencing the recognition of streetscape change in Insa-dong. In addition, multiple regression analysis was performed on factors affecting the recognition of streetscape change in Insa-dong. As a result of the analysis, it was found that the wider an intersection and the longer the distance between an observer and the intersection, the more was the streetscape change recognized. Also, the shorter the length of a street, the shorter the distance between a major road and the intersection, and the shorter the street width, the more the streetscape change was recognized. The front area had a greater impact on the recognition of streetscape change than other areas. Finally, the increase in the portion of sky and building, or the decrease in street furniture, sign, and ground surface affected the recognition of streetscape change. While the existing research is an observer-centered analysis, this study is meaningful in that it analyzes the physical factors affecting the recognition of streetscape change in the walking space from the viewpoint of the actor.