잠정적 Silastic 삽입을 이용한 관절원판 적출술

김형곤,박광호,김준배,주재동,배성렬,김영환,Kim, Hyung-Gon,Park, Kwang-Ho,Kim, Joon-Bae,Joo, Jae-Dong,Bae, Sung-Yeol,Kim, Young-Hwan 대한악안면성형재건외과학회 1992 Maxillofacial Plastic Reconstructive Surgery Vol.14 No.3

The author has studied retrospectively the meniscectomy with temporary silastic implant. The study material used was 4 joints that were possible to be followed up in 9 joints of out of all 145 joints who were diagnosed as internal derangement and have been operated in Yongdong Severance hospital from March 1988 to February 1990. We concluded that the use of temporary silastic implant would prevent the complication which would be arised after meniscectomy alone. And we could obtain the results of the relief of clinical symptoms and maintenance or improvement of joint space when preoperative and postoperative clinical and radiographic findings were compared. The larger number of patients and long term follow-up will be needed for further the investigation.

악관절 내장증의 증상 중 연관통의 악관절 수술 후 변화

김형곤,박광호,허종기,윤현중,김기영,남광현,Kim, Hyung-Gon,Park, Kwang-Ho,Huh, Jong-Ki,Yoon, Hyun-Joong,Kim, Ki-Young,Nam, Kwang-Hyun 대한악안면성형재건외과학회 1999 Maxillofacial Plastic Reconstructive Surgery Vol.21 No.1

Purpose: The aim of this study was to investigate the improvement of referred symptoms of TMJ internal derangement after open surgery of TMJ. Materials and Methods: The present study focused referred symptoms such as headache, neck pain, shoulder pain and evaluated the incidences and changes in their improvement at 1, 3, 6, 12 months after surgery in 118 patients who had TMJ internal derangement and received meniscoplasty(or meniscorrhaphy) and eminectomy at TMJ clinic of Yonsei University, Yongdong Severance Hospital, between 1992 and 1997. Results: One hundred eighteen patients(102 females, 16 males) with mean age of 29.6 years(range, 14 to 74) were included in this study and the mean follow-up period was 19.5 months(range, 12 to 60). The incidences of headache, neck pain, shoulder pain among the surgically treated TMJ internal derangement patients were 66.9%, 28.8%, 28.0% before surgery. Thirty-two preoperative severe(+++) headache patients were all improved their headache at 1, 3, 6 months after surgery, but slight relapse(9.4%) was found at 12 months after surgery. The clearance rate of preoperative neck and shoulder pain were 91.2% and 90.9% at 1 month after surgery and all of these groups had no pain at 12 months after surgery. Conclusions: Referred symptoms of TMJ internal derangement such as headache, neck pain, shoulder pain were dramatically improved after surgical treatment of TMJ.

2개의 기체주입관을 갖는 기체주입미립화기의 미립화 특성

김형곤(Hyung Gon Kim),김석곤(Seok Gon Kim),김재덕(Jae Duk Kim),송규근(Kyu Keun Song),김만영(Man Youmg Kim) 한국자동차공학회 2009 한국자동차공학회 부문종합 학술대회 Vol.2009 No.4

An experimental study was performed to investigate the atomization characteristics spray produced by effervescent atomizer. The atomization characteristics were examined through the changes of GLR and mixing rate of working fluids. Water and vegetable oil are sprayed as working fluids. For the simultaneous injection of different viscous working fluids, two-aerator tubes were designed inside the effervescent atomizer. LDPA was used to evaluate the atomization characteristics. Experimental results showed that the effervescent atomizer with two-aerator tubes will be capable of implementing several application requirements without any negative effect on atomization characteristics.

미국 독립전쟁기 아메리카인들의 심리적 갈등

김형곤(Kim, Hyung-gon) 역사실학회 2016 역사와실학 Vol.60 No.-

독립전쟁기 미국인들은 자신들을 억압한 왕과 정치제도로서의 왕정을 곧바로 거부하지 않았다. 그들이 왕과 왕정을 거부하고 새로운 정치형태인 공화국과 대통령을 창조하는 데는 상당한 시간과 노력이 필요했으며 그만큼의 많은 갈등이 동반되었다. 본 논문은 독립전쟁기 미국인들이 조지 3세를 버리고 조지 워싱턴을 선택하게 되는 과정에서 어떤 심리적 갈등을 겪게 되었는지를 살펴보았다. 당시 미국인들은 볼링브룩의 개념인 ‘애국적 왕’을 마치 메시아처럼 기다리고 있었다. ‘애국적 왕’은 식민지에 대한 차별을 없애고 식민지인들의 자유와 복리를 위해 노력해주는 정의의 사도였다. 미국인들은 1760년 전쟁이 끝나고 새로운 왕이 된 조지3세가 그들이 애타게 기다렸던 ‘애국적 왕’이라고 생각했다. 특히 그가 설탕법과 인지세법을 폐기했을 때 미국인들의 조지 3세에 대한 찬양은 하늘 높이 치솟았다. 그러나 영국정부가 또 다른 여러 억압법들을 만들어 식민지에 적용하게 되자 미국인들은 조지 3세에 대한 희망을 의심하기 시작했다. 차별대우가 심화되고 식민지에 대한 억압조치가 강화되는 가운데 미국인들은 조지 3세가 다시 한 번 억압법들을 폐기해 줄것이라 여겼다. 하지만 조지 3세는 미국인들의 움직임을 반란으로 규정하고 군대를 파견해 진압할 것이라는 대답을 보내왔다. 이제 미국인들은 조지 3세가 더 이상 ‘애국적 왕’이 아니라 여겼다. 그들은 새로운 ‘애국적 왕’을 찾았고 그가 바로 대륙군 총사령관 조지 워싱턴이었다. 미국인들은 전쟁이 한창 중일 때 계속해서 워싱턴을 찬양했으며 그가 새로운 ‘애국적 왕’이라는 점을 극구 강조했다. 그래서 미국인들은 전쟁이 끝나갈 무렵 ‘애국적 왕’에 대한 자신들의 미련을 워싱턴이 완수해 주기를 고대했다. 해밀턴과 매디슨을 비롯한 여러 사람들이 군사적 권력을 가진 워싱턴에게 왕이나 군주가 되어 줄 것을 요구하기도 했다. 심지어 많은 군인들은 워싱턴에게 군사적 쿠데타를 통해 정치권력까지 소유하는 강력한 군주가 되어주기를 원했다. 하지만 워싱턴은 이런 종류의 모든 요구를 거부하고 자신의 권력을 정당정부인 대륙회의에 반납하고 고향으로 은퇴했다. 워싱턴 스스로는 왕이 되는 것을 몹시도 거부했지만 당시 대부분의 미국인들은 그가 자신들의 마음속에 절망만을 남긴 조지 3세를 대신해 새로운 희망이 되어 주기를 간절히 원했다. 어쨌든 워싱턴은 조지 3세가 추방당하고 생긴 진공상태를 매운 새로운 왕과 같은 존재였다. 그러나 봉급을 거절하고, 중요한 사안마다 대륙회의에 보고하고, 개인 재산까지 헌납하고, 승리를 위해 혼신을 다하고, 그리고 주어진 권력을 포기하는 그의 행동은 왕이 아닌 새로운 리더(대통령)를 창조해 낼 수 있는 길을 미국인들에게 열어 주었다. 이런 의미에서 워싱턴은 왕정에서 공화정으로 넘어가는 과도기에 미국인들의 심리적 갈등을 잘 다스린 진정한 ‘애국자’였다. This paper examined whether Americans experienced some psychological conflict in the process of being independent when they abandoned George III and instead chose George Washington. At that time, Americans were waiting for a ‘patriotic king’, concept of Bolingbrook like the Messiah. A ‘patriotic king’ was the apostle of justice that strived for freedom and welfare of the colony and elimination of discrimination against the colony. In 1760 after the war, Americans were thinking of the new king(George III) as a ‘patriotic king’ they had been anxiously waiting for. In particular, Americans praised George III and soared high in the sky when he disposed of the Sugar Act and Stamp Act. However, the British government made a number of other repressive laws that applied to the colony and then Americans began to doubt the hope of George III. Amid the deepening and strengthening the discrimination and the repressive measures against the colony, Americans thought George III once again disposed of repressive laws. But George III defined the Americans’ movement as a rebellion, and his response would have sent troops to quell. From that time on, Americans no longer regarded George III as a "patriotic king. They found a new ‘patriotic king’ who was a Commander-in-Chief of the Continental Army, George Washington. Americans were willing to praise Washington and emphasized the fact that he was the new ‘patriotic king’ when the war was in full swing. So, Americans looked forward to Washington for the completion of their thoughts for a ‘patriotic king.’ Many people including Hamilton and Madison demanded that the king or monarch should provide Washington with military power. Even many soldiers wanted Washington to be a powerful monarch by a military coup. But Washington refused all requests of this kind, returned his power to the Continental Congress, retired and went back to his hometown. Washington said that being a king or a dictator was the saddest. But most Americans were eager and hoping to see Washington become a king on behalf of George III. Anyway, Washington was there as the new king filling the vacuum caused by George III being deported. Washington ruled psychological conflicts of American people in the transition from monarchy to republic, and he was a true ‘patriot.’

카트형 Compact Speed Sprayer(CSS) 분무장치 개발

김형곤 ( Hyung Gon Kim ),권규식 ( Kyu Sik Kwon ) 한국경영공학회 2014 한국경영공학회지 Vol.19 No.1

This study deals with the development of a cart type Compact Speed Sprayer(CSS) to spray and atomize agricultural chemicals of adequate amount for anyone by combining the nozzle manufacturing technology and ergonomic design technology. It acquired the concept and detail design data of CSS using CATIA and CAD tool and developed the prototype product. Also, it performed the test and evaluation of CSS and analyzed the performance of particles and the amount of CSS. It will provide the technical and economic effects through the application of CSS in various public place as well as agricultural environment.

인체 다형핵백혈구에 의한 Candida albicans 탐식작용시 혈청성분 분포에 관한 연구

김형곤(Hyung Gon Kim) 대한구강악안면외과학회 1985 대한구강악안면외과학회지 Vol.11 No.1

Opsonins, IgG and complement components C3, are known to aid in the phagocytosis of albicans. In this study, the author investigated ability of phagocytosis between normal human serum and heat inactivated serum by use of the phagocytic index. The author observed electron-microscopically, the binding site of IgG and C3 in an attempt to find the opsonical differences between normal serum and heat inactivated serum. The results were summarized as follows: 1. Phagocytic activities of Polymorphonuclear leukocyte (PMN) were compared to C. albicans, normal human serum was most active (89.5±0.9%), and heat inactivated serum(57.2±0.9%) were least active.HBSS (34.8±1.2%) were found to be poor in phagocytosis. 2. The ultrastructural changes were observed electron-microscopically. The cell wall of C. albicans which was engulfed by PMN became thicker, and electron dense materials like azurophile and specific granules were deposited. 3. When C. albicans were treated by Peroxidase-labeled antihuman IgG, there was a high density of IgG on the cell wall and fibrillic structure of C. albicans in normal human serum. But lower density of IgG were observed in the heat inactivated serum. Under HBSS, there were no IgG on the cell wall of C. albicans. 4. Although a high density of C3 was deposited on the fibrillic structures of the cell wall of C. albicans which were treated by peroxidase-labeled antihuman C3 in normal human serum, there were deposited no C3 in the heat inactivated serum.

MgGa₂Se₄ : Co 단결정의 전기적 광학적 특성에 관한 연구

金亨坤(Hyung-Gon Kim),李光錫(Gwang-Suck Lee),李基亨(Ki-Hyung Lee) 대한전기학회 1988 전기학회논문지 Vol.37 No.6

플라즈마 절단 금속 가공면의 특성에 관한 연구

김형곤(Hyung Gon Kim),신규인(Kyu In Shin),박재학(Jai Hak Park),김성청(Sung Chung Kim),김창일(Chang Il Kim) 충북대학교 산업과학기술연구소 2000 산업과학기술연구 논문집 Vol.14 No.1

N/A

MgGa₂-xInxSe₄ 단결정을 이용한 광전반도체소자 제작과 그 특성 연구

김형곤(Hyung-Gon Kim),김화택(Wha-Tek Kim) 한국진공학회(ASCT) 1993 Applied Science and Convergence Technology Vol.2 No.1

MgGa_(2-x)In_xSe₄ single crystal을 bridgman technique로 성장시켰다, 성장된 단결정은 rhombohedral 구조를 가지고 있었으며, lattice constant는 a=3.950~4.070 Å, c=38.89~39.50 Å으로 주어졌고, 높은 photoconductivity를 가지고 있었다. 이 단결정의 energy gap은 2.20~1.90 eV이었고, photoconductivity spectrum에 peak의 energy는 2.31~2.01 eV로 주어졌으며, photoconductivity의 time constant는 0.24~0.34 sec로 주어졌다. MgGa_(2-x)In_xSe₄ single crystals grown by the bridgman technique. The crystal structure of these compounds determined by X-ray diffraction analysis was rhombohedral structure with lattice constants a=3.950~4.070 Å, c=38.89~39.50 Å for MgGa_(2-x)In_xSe₄ single crystals. Also, these crystals have high photoconductivity. The direct band gaps of these compounds are found to be 2.20~1.90 eV at room temperature, and the peak energy of photoconductivity spectrum, 2.31~2.01 eV, and the time constants of photoconductivity, 0.24~0.34 sec.

유닉스 환경에서의 프로시저 단위의 온라인 소프트웨어 교체

김형곤(Hyung-Gon Kim),이인환(Inhwan Lee) 한국정보과학회 1998 한국정보과학회 학술발표논문집 Vol.25 No.2Ⅰ

실제의 소프트웨어 환경에서는 소프트웨어에 내재된 결함을 제거하거나 소프트웨어의 기능을 향상시키기 위한 소프트웨어 업그레이드가 필요하다. 그러나 이러한 업그레이드 동안에는 흔히 이 소프트웨어의 기능이 정지되며 이는 연속운전이 요구되는 응용분야에 커다란 장애 요인이 된다. 본 논문은 이러한 문제를 해결하기 위한 방법으로서, 동작 중인 소프트웨어의 일부를 이 소프트웨어의 동작에 영향을 주지 않고 교체하기 위한 온라인 소프트웨어 교체 방법을 다룬다. 구체적으로 이 논문은 SUN Solaris 2.6 환경에서의 프로시저 단위의 온라인 소프트웨어 교체를 위한 교체 환경과 교체 방법 그리고 교체 절차를 제시한다.