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초음파 센서를 이용한 차량 주차공간 탐색에서의 연석 감지 알고리즘
김수용(Suyong Kim),이동욱(Dongwook Lee),박성훈(Sunghoon Park),권재희(Jaehee Kwon) 한국자동차공학회 2011 한국자동차공학회 학술대회 및 전시회 Vol.2011 No.11
Recently many automobile companies are developing parking assist system as it improves the convenience of drivers. Among several types of parking assistance system, the method using ultrasonic sensors for detecting parking space is widely used because of its low cost and usefulness. In order to detect the parking space, the parking space detection algorithm provides the width and the length of the parking space using long range ultrasonic sensor. In this paper, to detect the accurate parking space with the curbstone, the curbstone detection algorithm is proposed. The performances of the proposed algorithm are verified and evaluated by experiments.
Park, Hyeyoung,Cha, Seung-Ick,Lim, Jae-Kwang,Nyeo Jeon, Kyung,Yoo, Seung-Soo,Lee, Jaehee,Lee, Shin-Yup,Kim, Chang-Ho,Park, Jae-Yong Elsevier 2017 The American journal of the medical sciences Vol.353 No.2
<P>Conclusions: The coexistence of PTE and respiratory tuberculosis rarely occurred in clinical practice. Compared with unprovoked PTE, PTE with respiratory tuberculosisis characterized by lower body mass index, higher levels of blood inflammatory markers, higher PESI and less frequent central PTE, but it is not associated with any differences in outcomes caused by PTE.</P>
Reflection-Type Optical-Fiber Intrusion Sensor Based on Speckle Detection
jaehee Park 한국물리학회 2007 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.50 No.2
A reflection-type optical-fiber intrusion sensor based on speckle detection has been developed. This sensor consists of a 3-dB coupler, a 500-m multimode fiber for sensing, and an optical fiber mirror with a reflection of 72 \% attached at the end of the sensing fiber. When intruders, such as an automobile and a person, passed over the sensing fiber buried at 5-cm depth in the ground, some variations of the output waveforms were induced and the signal-to-noise ratio (SNR) was about 40 dB. The experimental results show that the intrusion sensor has high sensitivity for intrusion detection and can distinguish a vehicle from a person.
Error Analysis in Korean EFL Learners’ Writing: A Case Study of Elementary Level Learners
Park, Jaehee 미래영어영문학회 2022 영어영문학 Vol.27 No.2
This study investigated the types of errors in the essay writing of college students at the elementary level. A total of sixty-four data were collected from thirty-five college students at the elementary level who took a general English course. Dulay et al. (1982)’s surface strategy taxonomy was adopted for the analysis and the students’ errors were categorized into four parts, such as omission, addition, misformation, and misordering. Results showed that the frequency of errors from misformation was the highest (51%), followed by omission (32.95%), misordering (10.71%), and addition (4.76%). In more detail, tense errors were revealed most frequently, followed by word choice. In particular, errors in the use of articles and prepositions occurred in various forms, which are construed as a result of a language system that does not exist in the mother tongue. The students in this study committed various grammatical errors at the sentence level as well as showed a lack of general knowledge about writing. It suggests that second language learners should be taught not only linguistic knowledge but also the strategy to improve writing skills.
How Followers and Leaders can Make a Difference:
Jaehee Park 한국인사행정학회 2017 한국인사행정학회보 Vol.16 No.2
Recent leadership studies point to the importance of taking followership into account when assessing leadership effectiveness. Accordingly, we develop and test a theoretical framework in which to examine the moderating role of participative versus directive leadership in the relationship between followership behaviors and job satisfaction. Focusing on data drawn from the 2012 Federal Employee Viewpoint Survey (FEVS), the study finds strong evidence that the effects of followership behaviors on job satisfaction were contingent on leadership styles. More importantly, the results showed that followers who actively engage in their work and demonstrate a high level of independent critical thinking derived greater job satisfaction where participative leadership was higher. By contrast, the role of participative leadership may be perceived as less effective when knowledge sharing and cooperation among employees already exists. This study offers insights into how leaders should interact with followers, and identifies the situations in which a particular leadership style can have positive consequences for employee job satisfaction.
Leading the active followers in U.S. federal agencies: The moderating role of leadership styles
( Jaehee Park ) 한국행정학회 2016 한국행정학회 학술발표논문집 Vol.2016 No.-
Recent leadership studies point to the importance of taking followership into account when assessing leadership effectiveness. Accordingly, we develop and test a theoretical framework in which to examine the moderating role of participative versus directive leadership in the relationship between followership behaviors and job satisfaction. Focusing on data drawn from the 2012 Federal Employee Viewpoint Survey (FEVS), the study finds strong evidence that the effects of followership behaviors on work-attitudes were contingent on leadership styles. More importantly, and contrary to popular belief, the results showed that active followers derived greater job satisfaction where directive leadership was higher, while the effects of highly participative leadership were weaker and even reduced job satisfaction in several instances. This study offers insights into how leaders should interact with active followers, and identifies the situations in which a particular leadership style can have negative consequences for employee satisfaction.
Genomic Surveillance of SARS-CoV-2: Distribution of Clades in the Republic of Korea in 2020
Park Ae Kyung,Kim Il-Hwan,Kim Jun-Young,Kim Jeong-Min,Kim Heui Man,Lee Chae young,Han Myung-Guk,이기은,Kwon Donghyok,Nam Jeong-Gu,Park Young Joon,Gwack Jin,Lee Nam-Joo,Woo SangHee,No Jin Sun,Lee Jaehee,H 질병관리본부 2021 Osong Public Health and Research Persptectives Vol.12 No.1
Since a novel beta-coronavirus, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was first reported in December 2019, there has been a rapid global spread of the virus. Genomic surveillance was conducted on samples isolated from infected individuals to monitor the spread of genetic variants of SARS-CoV-2 in Korea. The Korea Disease Control and Prevention Agency performed whole genome sequencing of SARS-CoV-2 in Korea for 1 year (January 2020 to January 2021). A total of 2,488 SARS-CoV-2 cases were sequenced (including 648 cases from abroad). Initially, the prevalent clades of SARS-CoV-2 were the S and V clades, however, by March 2020, GH clade was the most dominant. Only international travelers were identified as having G or GR clades, and since the first variant 501Y.V1 was identified (from a traveler from the United Kingdom on December 22nd, 2020), a total of 27 variants of 501Y.V1, 501Y.V2, and 484K.V2 have been classified (as of January 25th, 2021). The results in this study indicated that quarantining of travelers entering Korea successfully prevented dissemination of the SARS-CoV-2 variants in Korea.
지방자치단체 소방거버넌스 강화 요인들의 상대적 중요도 분석
Jaehee Park,Chang Mook Han 위기관리 이론과 실천 2021 Crisisonomy Vol.17 No.4
본 연구의 목적은 소방 거버넌스 강화를 위한 정책과제들의 우선순위를 제시하는 것이다. 소방 거버넌스를 ‘화재 예방 및 진압과 구조⋅구급 과정에서 의사결정 및 집행 등에 관한 활동’이라고 정의할때, 이를 지방자치단체 현장 수준에서 운용하기 위해서는 정책 과제들의 우선순위가 논의되어야한다. 이를 위하여 중앙소방학교 소방령 지휘역량과정 수료생을 대상으로 AHP(Analytic Hierarchy Process)를 활용하여 설문조사를 실시하고 상대적 중요도를 분석하였다. 리더십, 전문성, 협력성, 신속성과 하위 구성요소들의 중요도 산출 결과를 종합해보면 리더십의 하위 구성요소인 통합지휘체계개선의 중요도가 가장 높게 나타났으며, 협력성의 하위 구성요소인 통합훈련 실시 및 계획안 마련, 신속성의 하위 구성요소인 대응장비 보강 및 대응매뉴얼 개선, 리더십의 하위 구성요소인 기관 간조정방안 마련 등의 상대적인 중요도가 높은 것으로 파악되었다. 분석 결과를 바탕으로 소방거버넌스를 강화하기 위한 전략과 연구의 한계점을 논의하였다. The purpose of this study is to suggest strategies to strengthen governance of local fire agencies. We conducted a survey on students who completed the fire-fighting command competency course at the National Fire Service Academy and analyzed the relative importance of policy tasks using the AHP(Analytic Hierarchy Process). The results show that establishing an integrated command system, which is a sub-component of leadership, was the most important factor. It was found that the importance of preparing a plan, reinforcing response equipments, improving response manuals, preparing inter-agency coordination plans, and establishing networks were highly important. In addition, training employees, setting common goals, holding regular meetings, and dispatching order systems should be continuously promoted to improve local fire governance system. Based on the results, we discuss strategies for strengthening local fire governance.