慶尙地域의 烽燧(Ⅱ)

金周洪(Kim Ju-Hong),李樹昌(Lee Su-Chang),金成俊(Kim Sung-Jun) 역사실학회 2002 역사와실학 Vol.23 No.-

I have investigated the facts concerning the equipment for 7 signal fire stands in Kyungsang Province that were described in various geographical literature. The Kyungsang Province includes the areas of Busan Daegu, Ulsan, which is located in Kyungnam Province, and Kyungbuk In Kyungsang Province, there were more than 160 signal fire stands and they are of very significant importance. It is suspected that these signal fire stands were installed in full swing in the middle and late Koryo Dynasty when Japanese pirates infiltrated most frequently on the coastal areas of Korea. According to the facts and figures contained in geographical books published since the late Joseon Dynasty, all kinds of auditory and visual signal methods were used, including drums(鼓), horn trumpets(戰角), fire arrows(火箭), large white f1ags(大白旗), etc. In the late Joseon Dynasty, the visual equipment such as torches and fumes was mainly used in the early period. Also, in the late period, more than two three-hole guns(三穴銃) were essentially equipped in preparation for emergency cases in addition to the guns called Jo-chong(鳥銃) and Seungia-chong(勝字銃). This paper has summarized the facts and figures on signal fire stands that are of academic value. This has been accomplished through various researches and investigations made so far in order to set the research direction for the signal fire stands in this area. In the body of the paper, I have reviewed five geographical books and the "Nammok Bongsoo Byoljangseomok"(南木烽燧別將書目) in which equipment for signal fire stands in Kyungsang Province were recorded. Furthermore, I have presented relevant historical materials with arranged tables in order to figure out the significance of signal fire stands in Kyungsang Province and their current management status. As this research on signal fire stands in Kyungsang Province, focusing on equipment, is in the initial stage. The issues that have not been dealt with in this field should be investigated in further studies.

피이드백 라우드니스 제어회로

김주홍,심광보,엄기환,Kim, Ju-Hong,Sim, Gwang-Bo,Eom, Gi-Hwan 대한전자공학회 1983 전자공학회지 Vol.20 No.6

본 연구는 피이드백형 음량조절 회로와 이것에 결합한 음향재생 증폭기에 사용되는 라우드니스 제어회로에 관한 것이다. 재생 음계 레벨에 따라 변화하는 라우드니스 보상곡선에 추종하는 특성을 갖도록 브리지 트윈 T회로망과 피이드백 회로에 삽입한 석통의 음량조절용 가변저항기로 라우드니스 제어회로를 구성하였다. 이 새로운 방식에 의한 라우드니스 제어회로를 실현하여 그 특성을 측정하고 또 컴퓨터 시뮬레이션한 것을 비교한 결과 이상에 가까운 보상특성을 얻었다. This is a Loudness Control Circuit in an audio amplifier controlled by feedback type volume control variable resistors. This circuit consists of Bridged Twin T network and a ordinary variable resistor. The variably resistor acts not only as a volume control by varying feedback qupntity, but also as Loudness Control through the characteristics variation by Sound Level. This new Loudness Control Circuit showed ideal compensation characteristics that agree computer simulation and measured datas.

고차 모드 원통형 공진기 기반의 평판형 초고주파 플라스마 발생 장치 특성 연구

차주홍(Ju-Hong Cha),한성태(Seong-Tae Han),김도한(DoHan Kim),손채화(Chae-Hwa Shon),김종수(Jong-Soo Kim),진윤식(Yun-Sik Jin),조주현(Chuhyun Cho),김대종(DaeJong Kim) 대한전기학회 2022 대한전기학회 학술대회 논문집 Vol.2022 No.7

식품산업을 중심으로한 PL대책

김주홍,Kim, Ju-Hong 대한산업안전협회 2002 안전기술 Vol.54 No.-

시변 위상 제어 시스템을 적용한 평판형 초고주파 플라스마 장비 연구

차주홍(Ju-Hong Cha),한성태(Seong-Tae Han),김도한(DoHan Kim),손채화(Chae-Hwa Shon),김종수(Jong-Soo Kim) 대한전기학회 2022 대한전기학회 학술대회 논문집 Vol.2022 No.10

고대 琉璃玉 제작기술에 대한 검토

金周弘 ( Kim Ju-hong ) 국립중앙박물관 2011 고고학지 Vol.17 No.-

본 연구는 고대 琉璃玉이 출현하는 기원전 2세기부터 기원후 6세기까지 연구의 시간적 범위를 설정하고, 고대 琉璃玉의 제작기술에 대한 성형·가공이라는 관점에서 유물의 관찰을 통하여 유리 착색과 성형기법을 기술하였다. 고대 琉璃玉 제작과 관련된 유리공방 및 유리거푸집, 도가니가 출토된 유적을 중심으로 전국을 4대유역권으로 구분하여 유적의 특징을 살펴보았다. 또한 실험고고학적 측면에서 지역별 琉璃玉이 출토된 유적을 재검토하여 원료의 산지 추정 및 유리의 화학적 조성을 체계적으로 검토하여 보완하는데 중요한 자료를 제공해 주고 있다. 고대 유리의 착색 물질은 코발트(Co), 구리(Cu), 철(Fe), 망간(Mn) 등으로 확인되며, 유리의 색상은 전이금속의 양에 따라 좌우되지만 주성분의 조성과 산소의 공급, 제작조건에 따라 영향을 받을 수 있다. 우리나라에서 나타나는 琉璃玉에 있어 중심이 되는 색상은 청색계이다. 그러나 삼국시대 琉璃玉의 특징은 청색 외에 적색이나 주황 계통의 착색이 등장한다는 점이다. 당시에 보석과 같은 색을 만들기 위하여 금(노란색), 호박과 마노(적갈색 또는 황색), 비취(녹색), 수정(흰색), 경옥과 연옥(청색 외)으로 착색기법이 사용되었을 것으로 추정된다. 그리고 유리 제작기술은 고온의 열관리 기술이 필요한 철기시대 제철기술과 함께 출현하는데 철기와 함께 겸업체제 유지 가능성을 확인 하였다. 고대 琉璃玉의 제작기술의 성격 고찰을 위해 시기별 특징 및 고대 유리가 가지는 고고학적 의미를 정리하고, 고대 琉璃玉을 통해 본 대외교류 관계의 문화적 유입경로와 생산 및 소비에 관한 당시 고대문화의 성격을 엿볼 수 있었다. 이외 고대 유리의 성격을 명확히 고찰하기 위해서는 琉璃玉이 출토된 전체 유적을 중심으로 제작 형태와 성분 분석, 유리공예 측면의 비교 검토가 이루어져야 할 것이다. This paper covers the period when glass beads were used in Korea, i.e., from the 2nd century BC to the 6th century AD, and focuses on the coloring and molding technology of glass beads from the perspective of the melting and processing of glass. The characteristics of the relevant artifacts were studied by dividing the sites from which glass workshops, glass molds, and crucibles have been unearthed into four areas. The review, made from an experimental archaeology perspective of the archaeological sites where glass beads have been unearthed, helped assumption to the production site of their raw materials and the chemical composition of the glass objects. The main minerals used to color glass objects in ancient times were cobalt (Co), copper (Cu), iron (Fe), and manganese (Mn). The color of glass is determined by the volume of transition metal used. The composition of the main ingredients, the conditions for the supply of oxygen, and the production environment were also factors that determined the color of glass. Blue was the main color of the glass beads found in Korea. However, red or orange-colored glass beads were also made during the Three Kingdoms Period. It is assumed that gold (yellow), amber and agate (reddish brown or yellow), jade (green), crystal (white), jadeite and nephrite (blue) were used to obtain gem-like colors. Glass production techniques appeared simultaneously with the introduction of iron-production technology, which requires a technique for melting iron ore at an extremely high temperature, during the Iron Age. This study examined the archaeological context of glass and the features of glass objects made in different periods, with the focus on the techniques of producing glass beads in ancient times. This study also examined how an external culture was introduced into Korea, with glass beads and the ways in which they were produced and consumed in Korea as its basis. My contention is that a review should also be conducted of the forms of production (along with an analysis of the components of glass objects) and glass art in connection with the sites where the majority of glass beads have been unearthed, so as to elucidate the archaeological context of glass objects more clearly.

조선시대(朝鮮時代) 내지봉수(內地烽燧)의 구조(構造),형태(形態)

김주홍 ( Ju Hong Kim ) 충북대학교 사학회 2010 忠北史學 Vol.25 No.-

A signal fire was a military communication tool for notifying of an emergency situation occurring on the borders and coastal areas of the central government during the Joseon Dynasty. This system was carried out through an agreed upon signal delivery system using torches and smoke. This system was utilized in a primitive way since the ancient Three Nation Period and it was regularly used in the Coryo Dynasty. Then, during the time of King Sejong in the Joseon Dynasty it was largely organized and operated nationally until 1895. Therefore, it was in the Joseon Dynstany that the signal fire system was used as the communication system in the most developed form in premodern society. Signal fires are classified into Capital (Kyung) signal fires, Coastal (Yeonbyeon) signal fires, and Zoning (Gweonseol) signal fires according to the individual properties. As the building method varied according to each signal fire, the structure and form of the signal fire varied as well. An inland signal fire, which is to be reviewed in this thesis, refers to the signal fires that were located inland, taking on the connective role between the signal fires on a distant borderline area and with the centralized Capitol signal fire located in the capital city. This study focuses on three features of inland signal fires among the various features, one being a protective wall, a smoke-producing stand, and an entrance facility. The protective wall was of various plane types according to the geographical conditions and the average size was 70-80m. Most smoke-producing stands were located inside the protective wall but sometimes they were located outside. The entrance facility signal fires differed in numbers and building method; however, most of them were open-style. Thisstudy provides an opportunity to understand the general structure and form of inland signal fires.

MWNT/Polypropylene 복합재료의 분산성에 관한 연구

김주홍(Kim, Ju-Hong),김동학(Kim Dong-Hak) 한국산학기술학회 2008 한국산학기술학회 학술대회 Vol.- No.-

본 연구에서는 CNT표면에 공유결합으로 기능성기를 도입하는 화학적 방법을 사용하여 PP/MWNT 복합재를 제조하였으며, 기능성기가 도입된 CNT를 용액-용융 블랜딩 방법을 이용하여 탄소나노튜브를 분산시켰다. 탄소나노튜브 표면에 기능성기를 도입한 경우가 상대적으로 분산도가 양호하였다.

본문 : 이계 선형 미분방정식의 급수적 해

김주홍(Ju Hong Kim) 성신여자대학교 기초과학연구소 2000 基礎科學硏究誌 Vol.18 No.-

70세 이상 고령 환자에서 관상동맥 우회술 -2례 보고-

김주홍,오봉석,이동준,Kim, Ju-Hong,O, Bong-Seok,Lee, Dong-Jun 대한흉부심장혈관외과학회 1995 Journal of Chest Surgery (J Chest Surg) Vol.28 No.4

Recently we experienced coronary artery bypass graft in two patients over 70years of age. Among them, one case was 74 old year male and the other case was 73 old year male. The coronary artery diseases of them were angiographically diagnosed to triple vessel diseases. We only used great saphenous vein as graft vessel in two patients. The postoperative courses were good except mediastinal bleeding in 1 case. They were discharged with good results. They were still healthy 40 months in one and 30 months in the other after coronary artery bypass grafting.