COLUMN: 기자가 만난 과기정책 현장 - 용홍택 미래창조과학부 연구공동체 정책관

김한별,Kim, Han-Byeol 한국과학기술단체총연합회 2013 과학과 기술 Vol.535 No.-

부분방전 진단용 UHF cavity-backed 스파이럴 안테나

김한별,김진혁,황금철,신재호,Kim, Han Byul,Kim, Jin Hyuk,Hwang, Keum Cheol,Shin, Jae Ho 대한전자공학회 2012 전자공학회논문지 Vol.50 No.8

본 논문에서는 부분방전 진단용 UHF 광대역 cavity-backed 스파이럴 안테나를 제안하였다. 제안된 안테나는 두 개의 Archimedean 스파이럴 암 (arm) 패턴, 캐비티 (cavity), 그리고 급전용 tapered 발룬 (balun)으로 구성되어 있다. 제안된 스파이럴 안테나의 동작 대역은 0.3-1.5 GHz 이고, 두 개의 스파이럴 암은 마이크로스트립 tapered 발룬 구조를 통하여 급전된다. 후면에는 이득을 향상시키기 위하여 캐비티를 부착하였다. CST사의 Microwave Studio를 이용하여 제안된 안테나의 설계 및 시뮬레이션을 수행하였다. 또한 설계된 안테나의 제작 및 측정을 통하여 성능을 검증하였다. 제작된 안테나는 측정된 모든 주파수에서 +z축 방향으로 지향성이 나타났고, 최대이득은 9.92 dBi 이다. In this paper, a UHF cavity-backed spiral antenna for partial discharge diagnosis is proposed. The proposed antenna consists of two-arm Archimedean spiral, a cavity, and a balun for feeding. The spiral antenna is designed for 0.3-1.5 GHz operating frequency. Two spiral arms of the proposed antenna are fed by a microstrip tapered-balun. In order to enhance the gain, the cavity is located in the back side of the spiral pattern. The proposed antenna is designed and simulated using CST Microwave Studio. The designed antenna is also fabricated and tested to validate performance. The measured radiation patterns are directional to the +z-axis and measured peak gain is 9.92 dBi.

COLUMN: 기자가 만난 과기정책 현장 - 이재홍 미래창조과학부 국제협력관

김한별,Kim, Han-Byeol 한국과학기술단체총연합회 2014 과학과 기술 Vol.538 No.-

COLUMN: 기자가 만난 과기정책 현장 - 민원기 ITU전권회의 의장(미래창조과학부 국장)

김한별,Kim, Han-Byeol 한국과학기술단체총연합회 2014 과학과 기술 Vol.541 No.-

태양전지 모듈의 구성 요소가 PID 발생에 미치는 영향

김한별,정태희,강기환,장효식,Kim, Han-Byul,Jung, Tae-Hee,Kang, Gi-Hwan,Chang, Hyo Sik 한국전기전자재료학회 2013 전기전자재료학회논문지 Vol.26 No.10

PID (potential induced degradation) of PV module is the degradation of module due to the high potential difference between the front surface of solar cells and ground when PV modules operate under high humidity and temperature conditions. PID is generally derived from the positive sodium ions in front glass that are accumulated on P-type solar cells. Therefore, some papers for the electrical characteristic of only front components as glass, EVA sheet, solar cell under PID generation condition were revealed. In this paper, we analyzed the different outputs of module with PID by considering the all parts of module including the back side elements such as glass, back sheet. Mini modules with one solar cell were fabricated with the various parts on front and back sided of module. To generate PID of module in a short time, the all modules were applied.1,000 V in $85^{\circ}C$, 85% RH. The outputs, dark IV curves and EL images of all modules before and after experiments were also measured to confirm the main components of module for PID generation. From the measured results, the outputs of all modules with front glass were remarkably reduced and the performances of modules with back and front glass were greatly deteriorated. We suggest that the obtained data could be used to reduce the PID phenomenon of diverse modules such as conventional module and BIPV (building integrated photovoltaic) module.

Gallic Acid Inhibits Proliferation and Migration of Smooth Muscle Cells in a Pig In-Stent Restenosis Model

김한별,홍영준,이승헌,기해진,Mun Ki Kim,안영근,정명호 전남대학교 의과학연구소 2024 전남의대학술지 Vol.60 No.1

In-stent restenosis (ISR) develops primarily due to neointimal hyperplasia. Gallic acid (GA) has anti-inflammatory, antioxidant, and cardioprotective effects. This study sought to investigate the effects of GA on neointimal hyperplasia and proliferation and migration of vascular smooth muscle cells (VSMCs) in a pig ISR model. In vitro proliferation and migration experiments were confirmed, after VSMCs were treated with platelet- derived growth factor (PDGF-BB) and GA (100 mM) using a 3‑(4,5‑dimethylthiazol)‑ 2,5‑diphenyltetrazolium bromide (MTT) assay and a scratch wound assay for 24 hours and 48 hours. A bare metal stent (BMS) was implanted in the pig coronary artery to induce ISR with overdilation (1.1-1.2:1), and GA (10 mg/kg/day) was administered for 4 weeks. At the 4-week follow-up, optical coherence tomography (OCT) and histopathological analyses were performed. GA decreased the proliferation of VSMCs by PDGF-BB for 24 hours (89.24±24.56% vs. 170.04±19.98%, p<0.001) and 48 hours (124.87±7.35% vs. 187.64±4.83%, p<0.001). GA inhibited the migration of VSMCs induced by PDGF-BB for 24 hours (26.73±2.38% vs. 65.38±9.73%, p<0.001) and 48 hours (32.96±3.04% vs. 77.04±10.07%, p<0.001). Using OCT, % neointimal hyperplasia was shown to have significantly decreased in the GA group compared with control vehicle group (28.25± 10.07% vs. 37.60±10.84%, p<0.001). GA effectively reduced neointimal hyperplasia by inhibiting the proliferation and migration of VSMCs in a pig ISR model. GA could be a potential treatment strategy for reducing ISR after stent implantation.

≪학봉김션□□장(鶴峯金先生行狀)≫의 서지와 언어

김한별 ( Kim Han-byul ) 서강대학교 언어정보연구소 2019 언어와 정보 사회 Vol.36 No.-

This article conducts a bibliographic and linguistic study on Hakpong kim sonsaeng haengjang (‘An Annotation of the Behaviors of Great Scholar Kim Hakpong’ 鶴峯金先生行狀), which is not a well-known source in Korean historical linguistics. The annotation book is a one-volume manuscript translated from Classical Chinese into Korean vernacular in 1770 by Kim Chuguk, the 7th eldest son of the eldest son’s family of Kim Hakpong. Evidence from the number of handwritings, types of misspelling and the use of a certain punctuation mark, however, indicates that the book is not the original version, but a copied one. According to some intra- and extra-linguistic evidence, the transcribers must be Kim Chuguk’s family members. Based on the bibliographic characteristics of the annotation, in order to reveal its linguistic value I have researched the following topics: its dialectal background; its orthographical, phonological, grammatical and lexical characteristics; and its translational aspect.

국어사 자료로서의 『녀자초학(女子初學)』 연구

김한별(Kim, Han-byul) 우리말글학회 2017 우리말 글 Vol.73 No.-

본고는 지금까지 국어학계에 공개되지 않은 문헌인 『녀자초학』을 소개하고 그것을 국어사적 측면에서 조명해 보기 위해 작성된 것이다. 이 책은 한글로 필사된 학봉 종가의 계녀서로, 두 이본이 존재한다. 하나는 학봉의 9대 종손인 김종수가 작성한 ‘고본(稿本)’이고, 다른 하나는 그의 증손자인 김응식이 그것을 베껴 쓴 ‘전사본(轉寫本)’이다. 본고는 전사본과의 대비 작업을 중심으로 하여 고본의 언어적 특징을 ‘표기ㆍ음운ㆍ문법ㆍ어휘’로 나누어 살펴보는 데 주력하였다. 고본의 저자 김종수는 표기법을 중시하고, 서울말이나 중부 방언뿐만 아니라 자신의 경북 양반 계층 방언도 중시하는 인물이다. 이에 따라, 그는 많은 음운 변화에서 보수적인면을 보였으나, 현실 언어를 수용하는 데에서 완전히 자유롭지 못한 모습을 보이기도 하였고, 일부 변화에서는 개신적인 태도를 드러내기도 하였다. 문법적인 측면에서는 사동사 ‘보이-[使試]’와, 척도 파생 접미사 ‘-(-애)/의’의 대당 표현으로 쓰이는 명사형 어미 ‘-기’, 목적격 조사 ‘-으로’의 존재, 접속 조사로 연결되는 명사구 나열 구성에서의 맨 마지막 격조사 생략 문제, 비교 구문에서의 조사 생략 문제 등을 다루었다. 어휘적인 측면에서는 동남 방언형과 의미 변화를 상정할 수 있는 어휘, 그리고 희귀어를 소개하였다. This article introduces a new historical literature Nyŏjach"ohak (女子初學), which has never been studied in Korean linguistics, and examines its linguistic characteristics. This book is a Hangŭl manuscript written by a father who wanted to teach one of his daughters the proper virtues and manners for a noble woman at the period. There are two different versions of the text: the one is the original text written by Kim Chongsu, the 9th descendent of Hakpong, and the other is the one copied by Kim Ŭngsu, a great-grandson of Kim Chongsu. In this article, I examined the orthographical, phonological, grammatical and lexical characteristics of the original version based on the result from contrasting between the two versions. Kim Chongsu, the author of the original version, regarded the orthographic tradition as important and seemed to pursue not only Seoul or Central Dialect, but also his own upper class dialect in Kyŏngsangbukdo area. Consequently, phonological changes in the text show both conservative and innovational forms depending on individual change. As for grammatical characteristics, I dealt with causative verb pwoi-; nominalizer –ki used as nominal suffix –oy/uy; accusative particle –urow; omitting of case particles after the last comitative particle in a construction of coordinated noun phrases; and omitting of particles in a comparison construction. Finally, I indicated the lexical characteristics of the book in terms of the following three categories: Southeastern dialect, semantic change and rare words.

안동 지역 반촌어의 음운 변화 - 후기근대 문헌자료와 현대 음성자료 간의 실재시간 연구 -

김한별 ( Kim Han-byul ) 국어학회 2017 국어학 Vol.84 No.-

본고는 후기 근대 문헌 자료와 현대 음성 자료를 서로 비교하는 실재 시간 연구를 통하여 19세기 이후 안동 지역 반촌어에서 전개된 음운 변화를 살펴본 것이다. 후기 근대 국어 자료로는 학봉 종가 구성원들이 저술하고 작성한 ≪녀□초□≫(1797)과 <의성김씨 학봉 종가 언간>을, 현대 국어 자료로는 필지가 안동 검제 마을에서 현지 조사를 통해 수집한 음성 자료를 선정하였다. 검제 마을은 학봉 종가 구성원들이 세거해 온 지역이라는 점에서 두 유형의 자료는 통시적 연속성을 지닌다고 할 수 있다. 이러한 방법론을 통하여 본고에서는 이 방언에서 전개된 음운 변화를 모음과 자음의 변화로 나누어 그 양상을 기술하고 설명하였다. 먼저, 모음의 변화로는 모음 합류(/ㅔ/와 /ㅐ/의 합류, /ㅡ/와 /ㅓ/의 혼동), 모음 상승(‘ㅔ>ㅣ’, ‘ㅓ>ㅡ’, ‘ㅗ> ㅜ’), 이중 모음의 변화(/ㅟ/, /ㅚ/, /ㅢ/, /ㅕ/, /ㅝ/ㆍ/ㅘ/의 변화), 움라우트, 전설 모음화, 원순 모음화, 모음 조화를 살펴보았다. 다음으로, 자음의 변화로는 파찰음의 재음운화, /ㅆ/의 음운화, 체언 어간말 자음의 마찰음화, 비모음화, 어중 /ㅎ/의 약화ㆍ탈락과 유기음화를 논의해 보았다. This article describes and explains phonological changes implemented in a panch’on (‘noble class village’ 班村) dialect in Andong, Kyongsangbukto from the 19th century to the present day. In order to achieve the goal, a real time study between written and spoken data from Late Early-Modern and Contemporary Korean respectively is carried out. For the LEMK source, on the one hand, I have chosen two texts written by members of Hakpong Kim Song’il’s head family: Nyojach’ohak (‘Elementary Studies for Education of Women’ 女子初學, 1797) and Ŭisong kimssi hakpong chongga on’gan (‘Vernacular Letters by the Head Family of Hakpong from the Ŭisong Kim Clan’ 義城金氏 鶴峰宗家 諺簡). For the CK source, on the other hand, spoken data collected in Komje village in Andong by my own fieldwork has been chosen. Since Komje village is the panch’on where Hakpong’s head family has resided for generations, it seems reasonable to regard the two different types of source have a diachronical continuity in terms of both regional and social dialect. Comparing the two sources from the different periods in the same area, this article investigates both vowel and consonant changes. The vowel changes contain ① vowel merger (“merger of ay [e] and ey [ε]” and “confusion of e [ə] and u [i]”), ② vowel raising (“ey [e] > i [i],” “e [ə] > u [i]” and “wo [o] > wu [u]”), ③ changes of diphthongs (“change of wuy [uy], woy [oy], uy [iy], ye [yə], we [wə] and wa [wa]”), ④ umlaut, ⑤ vowel fronting, ⑥ labialization and ⑦ vowel harmony, whereas the consonant changes include ⑧ rephonologization of affricates, ⑨ phonologization of ss [s’], ⑩ spirantization of noun coda, ⑪ vowel nasalization and ⑫ lenition, dropping and aspiration of medial h.

키넥트를 이용한 골프 스윙 구간 분석

김한별(Han-byeol Kim),장수형(Soo-hyeong Jang),유호균(Ho-Kyun Yoo),이준우(Jun-Woo Lee),전윤혜(Yun-Hye Jeon),김다슬(Da-Sul Kim),김성영(Sung-Young Kim) 한국정보기술학회 2018 Proceedings of KIIT Conference Vol.2018 No.6