http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Hur†, Jung A,Bae, Suk Young,Kim, Kyung Hwan,Lee, Tae Wan,Cho, Min Ju,Choi, Dong Hoon American Chemical Society 2011 ORGANIC LETTERS Vol.13 No.8
<P>2,6-Bis((4-hexylphenyl)ethynyl)-9,10-bis(phenylethynyl)anthracene, <B>4</B>, and 9,10-bis((4-hexylphenyl)ethynyl)-2,6-bis (phenyl ethynyl)anthracene, <B>5</B>, have been synthesized to study their electronic and photophysical properties. It should be noted that the difference between these compounds is the substitution position of 1-ethynyl-4-hexylbenzene groups into an anthracene ring. In particular, substitution in the 9,10-positions of the anthracene ring enhanced J-aggregated intermolecular interactions. Since <B>5</B> has a lower bandgap energy and more compact film morphology, it exhibited higher hole mobility (∼0.27 cm<SUP>2</SUP> V<SUP>−1</SUP> s<SUP>−1</SUP>) in thin-film transistor devices.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/orlef7/2011/orlef7.2011.13.issue-8/ol200299s/production/images/medium/ol-2011-00299s_0006.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/ol200299s'>ACS Electronic Supporting Info</A></P>
徐煥周,許栽準,田炳裕,李榮洙 한국국제경제학회 2004 국제경제연구 Vol.10 No.1
본고는 산업 및 사업체 수준의 자료를 이용한 Mincer류의 임금방정식 추정을 통해 산업간 혹은 사업체간 상이한 수준의 ICT 확산이 동일직능집단 내 임금불평등 확대 및 고직능-저직능노동간 임금불평등 확대에 기여하는지를 탐구하였다. 그 결과 ICT 확산속도의 차이가 부문간 임금격차 확대를 통해 동일직능 집단내 임그불평등 확대에 기여함을 알 수 있었다. 또한 ICT 확산속도의 차이가 집단간 임금불평등 확대에도 기여함을 명시적으로 확인할 수 있었다. 이상을 종합해 볼 때 기술변화속도가 급격한 시기에는 노동수요구조가 고용아정성 및 소득분배 상황을 양극화시키는 경향을 띠므로 근로자의 직업교육 및 직업경험 기회를 확대하고, 저직능근로자에 대한 사회안전망의 충실도를 제고하는 등의 정책적 배려를 강화해야 할 필요가 있다고 하겠다. This paper explores, using the traditional Mincer-type earnings equation augmented by a proxy for ICT progress, whether the differing pace of Information and Communication Technologies (ICT) has an effect on both within- and between-group wage inequalities. We found that the pace of ICT progress caused the widening of both within- and between-group wage inequalities. An important policy implication of this finding is that as the forces of labor demand tend to increase wage inequalities among workers at least until the pace of ICT progress stabilizes, policy measures to provide more opportunities for training and job experience for workers and the extension of the social safety net for vulnerable workers are necessary.
Hwan Hur,Hyo-Sung Ahn IEEE 2013 IEEE SENSORS JOURNAL Vol.13 No.1
<P>This paper proposes a localization technique for mobile robots using a wireless sensor network (WSN), based on chirp spread spectrum ranging and an inertial measurement unit (IMU). A discrete-time <I>H</I><SUB>∞</SUB> filter with input forcing function is newly derived for mobile robot localization. The position of the robot is estimated by the filter using an integration of position information collected by the WSN and absolute acceleration data obtained by the IMU. From the dynamics of the robot, the solution existence of the proposed filter is shown, and a low-complexity computational method to obtain a solution from the filter is proposed by a generalized eigenvector approach. Through simulation and experiments, we evaluate the performance of the proposed <I>H</I><SUB>∞</SUB> filter and compare it with the standard Kalman filter.</P>
Hwan Hur,Hyo-Sung Ahn IEEE 2014 IEEE Sensors Journal Vol.14 No.8
<P>This paper proposes a pedestrian localization technique using a wireless sensor network. An unknown input observer (UIO)-based Kalman filter and UIO-based H<SUB>∞</SUB> filter are newly derived for the pedestrian localization. The purpose of the developed filters is to ensure a decoupling of unknown acceleration inputs generated by motions of the pedestrian from the state estimation and to minimize the external disturbance effects. Through comparative simulation and experimental tests, we evaluate the performance of the developed filters.</P>
Active Localization in Distributed Networks
Hwan Hur,Hyo-Sung Ahn 제어로봇시스템학회 2010 제어로봇시스템학회 국제학술대회 논문집 Vol.2010 No.10
Location-awareness is considered a promising technology for use in constructing ubiquitous environments. And, though numerous research works have been devoted to localization problems, there have been relatively few theoretical analyses of network localizations. In this research field, recent research has contributed to finding a unique realization of a network graph G = (V, E) in a 2-dimensional space using graph rigidity theory. However, they do not focus on unlocalizable networks that can be changed to localizable networks via active localization. In this paper, we point out two fundamental problems of using unlocalizable networks in active localization and propose solutions for overcoming these problems.
A Circuit Design for Ranging Measurement Using Chirp Spread Spectrum Waveform
Hwan Hur,Hyo-Sung Ahn IEEE 2010 IEEE SENSORS JOURNAL Vol.10 No.11
<P>This paper reports an RF circuit design for indoor localization using wireless chirp spread spectrum waveform. First we address the technical problems of existing hardware systems and then point out dominant factors of the ranging circuit. It will be shown that the performance of the existing system can be significantly enhanced by blocking the effects of clock noise. A set of experimental hardware circuits is developed and tested.</P>
Myofibroblast in the ligamentum flavum hypertrophic activity
Hur, Junseok W.,Bae, Taegeun,Ye, Sunghyeok,Kim, Joo-Hyun,Lee, Sunhye,Kim, Kyoungmi,Lee, Seung-Hwan,Kim, Jin-Soo,Lee, Jang-Bo,Cho, Tai-Hyoung,Park, Jung-Yul,Hur, Junho K. Springer-Verlag 2017 European spine journal Vol.26 No.8
<P>We conclude that the transition of fibroblast to myofibroblasts via TGF-beta pathway is a key linker between inflammation and fibrosis in LFH mechanism.</P>