소형펀치 크리프 시험중 측정하는 변수에 대한 연구

박태규,심상훈,윤기봉,장창희,Park, Tae-Gyu,Sim, Sang-Hun,Yun, Gi-Bong,Jang, Chang-Hui 대한기계학회 2002 大韓機械學會論文集A Vol.26 No.1

An effect is made in this study to deepen understanding of small punch(SP) creep testing which has been a round for about 10 years as a substitute for the conventional uniaxial creep testing. Even though considerable numbers of SP creep test program have been performed, most of the tests were aimed at measuring creep rupture lives only. Very flew studies showed interest on the meaning of what we were really measuring during the SP creep tests. In this paper meanings of the parameters measured during the SP creep testing, such as punch load and punch displacement rate are investigated using finite element analysis. It was shown that the measured parameters must represent the stress and strain rates of the material at the annular region located at about 0.65 mm from the center of the SP specimen. The material in this location would go through constant maximum stress and strain rate during the testing. Experimental verification is also discussed.

p$^+$ Si 외팔보 구조를 이용한 광학 소자용 마이크로 구동기의 제작

박태규,양상식,Park, Tae-Gyu,Yang, Sang-Sik 대한전기학회 2001 전기학회논문지C Vol.49 No.5

The paper represents the design and fabrication of an electrostatic micro actuator with $p^+$, Si cantilevers. The micro actuator consists of a plate suspended by four $p^+$, silicon cantilevers and an electrode on a glass substrate. The $p^+$, Si structure is fabricated by the boron diffusion process and the anisotropic wet etch process. The cantilevers of the micro actuator curl down because of the residual stress gradient in $p^+$, silicon. When the electrostatic forec is applied to the $p^+$, cantilevers, the vertical displacement of the plate can be achieved. The deflection of the cantilever due to the residual stress gradient and the vertical displacement by electrostatic force were calculated. The displacement of the plate was measured with a laser displacement meter for various input voltages and frequencies. The feasibility of the proposed micro actuator for the applications to optical pickup devices or optical communication devices was confirmed by the experiments.

컴퓨터 범죄 동향 분석

박태규,이형수,Park, Tae-Gyu,Lee, Hyung-Su 한국전자통신연구원 1988 전자통신동향분석 Vol.3 No.2

본고에서는 컴퓨터 범죄에 대한 특성, 각국의 컴퓨터 범죄 사례 및 분석과 새로운 컴퓨터 범죄자의 유형과 범죄에 사용되는 수법에 대해 기술하였다.

수출형 기본 훈련기에 대한 기체구조물 내구성 입증

박태규,박정규,문창오,Park, Taegyu,Park, Jeongkyu,Moon, Changoh 항공우주시스템공학회 2015 항공우주시스템공학회지 Vol.9 No.2

Export basic trainer was designed to add armed configuration required by customer. Design configuration of main wing was changed to satisfy changed internal load caused by armed configuration. It was verified that design changed main wing airframe of export basic trainer satisfy the requirement through the structural detail analysis, structural ground test and flight test. This paper presents the durability test procensure and test result for the main wing of export basic trainer.

Cochlodinium polykrikoides 적조출현주의보 발령에 분자탐침기법의 활용

박태규,원경미,김원진,PARK, TAE GYU,WON, KYOUNG MI,KIM, WON JIN 한국해양학회 2016 바다 Vol.21 No.1

Real-time PCR을 적조출현주의보 발령에 활용하였다. Cochlodinium polykrikoides 적조예보를 위해 $10cells\;mL^{-1}$ 이상에서 적조출현주의보를 발령하였는데 현미경 검경은 저밀도에서 정확도가 낮기 때문에 이를 보완하기 위해 C. polykrikoides 특이적 real-time PCR을 사용하였다. 6월 말경에 C. polykrikoides이 통영, 남해 해역에 저밀도로 광범위하게 출현하였고 2015년 8월 2일 적조출현주의보를 발령하였다. Real-time PCR was applied to early warning of red tide. For early warning of red tide at $10cells\;mL^{-1}$, Cochlodinium polykrikoides specific real-time PCR was used as a complement of microscopy that has a lower detection sensitivity. C. polykrikoides appeared extensively in Tongyeong, Namhae waters at low densities in the end of June, and early warning of C. polyrkrikoides blooms was issued on 2 August 2015.

근막이완술이 영유아 근성사경의 치료효과에 미치는 영향

박태규,김종열,조미숙,박래준,Park, Tae-Kyu,Kim, Jong-Ryul,Cho, Mi-Suk,Park, Rae-Joon 대한물리치료학회 2006 대한물리치료학회지 Vol.18 No.5

Purpose: This study was to evaluate effects of myofascial release therapy for newborns and infants with congenital torticollis. Methods: In a two month period, thirty-six newborns and infants diagnosed with congenital muscular torticollis received treatment thirty times; then divided into a myofascial release group and stretching group. Crying frequency was used to measure the amount of crying time during treatment. Ultrasonography was used to measure the size of fibromatosis. Physical examinations were used to measure the degree of head tilting and rotation. Results: The results were as follows: 1. Crying frequency was significantly decreased in myofascial degree group. 2. The size of fibromatosis was not significantly decreased in ultrasonography. 3. Head tilt was significantly decreased in myofascial release group. 4. Rotation was not significantly increased in myofascial release and control group. Conclusion: The above results suggest that myofascial release therapy is helpful decreasing head tilt, crying frequency, and increasing head rotation.

선박평형 수 내 유해 와편모조류(Dinophyceae)의 분자생물학적 검출

박태규,김성연,Park, Tae-Gyu,Kim, Sung-Yeon 한국해양학회 2010 바다 Vol.15 No.1

선박평형 수는 유독 와편모조류 및 다양한 미세조류의 국제적인 이동경로로 알려져 있다. 본 연구에서는 선박평형 수에 있는 와편모조류의 다양성을 조사하기 위하여 와편모조류 특이적인 PCR primer와 종 특이적인 real-time PCR 유전자 탐침자를 이용하였다. 선박평형 수 시료에 대한 광학현미경 조사에서는 와편모조류가 매우 낮은 농도로 관찰되었지만, SSU rDNA의 cloning 및 염기서열 분석 결과에서는 기생 와편모조류, 초미세플랑크톤, 어패류 폐사 원인종 등 다양한 종류가 확인되었다. 본 연구 결과는 종 톡이적 PCR primer와 같은 분자생물학적 방법이 선박 평형 수에 외래 유입종의 신속 정확한 진단에 유용함을 보여주고 있다. Ballast water has been known as a major vector for global dispersal of toxic dinoflagellates and other microalgae. In this study, biodiversity in ships’ ballast water was examined using a dinoflagellate-oriented PCR primer set and species-specific real-time PCR. While motile dinoflagellates could be observe at very low cell densities by light microscopy,a wide range of dinoflagellate taxa including parasitic and phototrophic pico-dinoflagellates as well as harmful species to marine fish/shellfish was detected when techniques for cloning/sequencing of SSU rDNA of sample cells were used. Present result suggests that molecular methods including species-specific PCR primers may offer rapid and accurate detection of invasive species in ballast water.

예비전류를 이용한 자동차용 프리실드 강판의 저항 점 용접성 향상에 관한 연구

박태규,윤상만,이세헌,Park, Tae-Gyu,Yun, Sang-Man,Rhee, Se-Hun 대한용접접합학회 2009 대한용접·접합학회지 Vol.27 No.6

In the present day, new performances are demanded for automobile body steel sheet for example, light weight, durability, resistance corrosion and environmental protection. For an improvement of resistance corrosion, European automobile companies developed pre-sealed steel in 1990's. Pre-sealed steel have organic coated layer upper zinc coated layer. Evaluating a resistance spot weldability of pre-sealed steel plate is important because resistance spot welding is used mainly in automobile body joining process. In this study, evaluating a weldability of pre-sealed steel plate was carried out using lobe diagram, dynamic resistance and high-speed image. Usually, Pre-sealed steel has poor weldability than GA steel's. To improve a weldability of pre-sealed steel sheet, pre-current was applied to welding process. Pre-current is applied prior to base-current. In conclusion, the weldability of pre-sealed steel has been improved than GA steel's by applying pre-current.

Cochlodinium polykrikoides (Dinophyceae)의 동아시아와 필리핀 유전형의 남해안 분포

박태규,김진주,송선영,PARK, TAE GYU,KIM, JIN JOO,SONG, SEON YOUNG 한국해양학회 2019 바다 Vol.24 No.3

어류폐사 와편모조류인 Cochlodinium polykrikoides는 large-subunit(LSU) ribosomal RNA gene을 기반으로 전 세계적으로 4가지 유전타입이 알려져 있으며, 남해안에는 2가지 유전타입이 출현한다고 보고되었다. 본 연구에서는 C. polykrikoides의 동아시아 타입과 필리핀 타입의 남해안 출현양상을 quantitative real-time PCR(qPCR)을 이용하여 3년간(2014~2016년) 조사하였다. 동아시아 타입의 경우 2014~2016년에 40~100% 비율로 남해안 전 정점(통영~완도)에서 검출이 된 반면, 필리핀타입은 대마난류 유입이 강했던 2016년에만 통영~고흥 일부 해역에서 1~2% 비율로 극미량 검출되었다. 위 결과는 동아시아타입이 남해안의 우점 C. polykrikoides 개체군임을 보여주고 있으며, 일부 유영세포는 대마난류를 따라 외해역으로 부터 유입될 수 있음을 시사한다. Fish killing dinoflagellate Cochlodinium polykrikoides has been separated into four genetically differentiated subpopulations globally based on large-subunit (LSU) ribosomal RNA gene, and two subpopulations have been found in the South Sea, Korea. In this study, distributions of the East Asia and Philippines ribotypes were surveyed in the South Sea for 3 years (2014~2016) using quantitative real-time PCR (qPCR). The East Asia ribotype was detected in all sampling stations of the South Sea (Tongyeong~Wando) by 40~100% positives for 2014~2016, whereas the Philippines ribotype was detected in some areas of Tongyeong~Goheung by 1~2% positives for only 2016 when the Tsushima Warm Current (TWC) was particularly strengthened. These results indicate that the East Asia ribotype is the dominant subpopulation in the South Sea, also some of C. polykrikoides swimming cells might be transported from offshore to the South Sea via TWC.

근대 일본의 가가쿠(雅楽) 연구

박태규(Park, Tae-qu) 가천대학교 아시아문화연구소 2018 아시아문화연구 Vol.48 No.-

본고에서는 근대 일본의 아악국(雅楽局) 설치와 악가(楽家) 별 계보, 그리고 아악국악인들의 활동상에 관해 고마 성씨계 악가를 중심으로 살펴보았다. 근대시기 아악국설치와 더불어 단행된 가가쿠계의 개방은 크게 두 가지 의문을 갖게 하였다. 첫째는 악가 별 계보, 즉 전승의 틀에 관한 것이며, 둘째는 악인들, 즉 전승의 주체에 관한 것이다. 근대 이후 가가쿠계는 악가와는 상관없이 모두가 동일한 조건 하에서 그것을 전승하게 되었다. 이것은 다른 말로 표현해 악가라고 하는 전승의 틀이 사라진 것을 의미한다. 그렇다면 그로인 부작용, 즉 전통성의 부재로 인한 전승 상의 어려움은 없었는지 의문이 남는다. 또한 악인들은 악가라고 하는 테두리 안에서 가가쿠 전승의 주체로서 활동하였다. 그러나 근대 이후부터는 악가가 아닌 아악국의 일원으로서 역할을 해야만 했는데, 당시 악가 출신의 악인들은 과연 어떠한 활동상을 보인 것일까? 첫 번째 질문에 답을 구한 결과 아악국 개설 당시, 악인들 대다수는 악가 출신들로, 그들의 전공은 _악소보임_에 기록된 개별 악가의 전문 영역과 대부분 일치하고 있었다. 즉, ‘개방’을 모토로 한 제도적 변화에도 불구하고 아악국 개설 당시에는 헤이안시대(平安時代)의 악소(楽所)에서 에도 시대(江戸時代)의 삼방악소로 이어진 악가와 악인들의 계보가 그대로 유지되고 있었음을 알 수 있다. 다음으로 악인들의 활동상을 살펴 본 결과 개설 당시 아악국에는 20여명에 달하는 고마 성씨계 악가의 악인들이 참여를 하였다. 그리고 이들 악인들은 가가쿠는 물론 새롭게 도입된 서양음악에서도 탁월한 실력을 발휘해 악기 연주 외에 작곡과 학교 교육 등에서 큰 역할을 감당하였다. 그런데 이러한 악인들의 활약은 문화사적으로 가가쿠의 전승 및 계승은 물론 근대서양음악의 발전과 교육에 기초토대가 되었다는 점에서 커다란 의미를 지닌다. 그리고 또한 고대 당시 일본에 가가쿠를 전해 준 발신자의 입장에서 한층 의미 깊은 것은 당시 많은 업적과 족적을 남긴 악인들의 상당수가 한반도계 성씨의 후손들이었다는 점이다. 결국 일본의 가가쿠는 고대로부터 한반도계 악인들의 역할과 활약에 힘입어 전승과 발전을 이어왔고, 또한 근대에도 그들의 활동에 힘입어 개방과 혼란의 시기를 극복할 수 있었다고 하겠다. This paper examined the establishment of modern Japanese Gagakukyoku(雅楽局), the genealogy by Gakke(楽家) and the activities of Gakakukyoku Gaknin(楽人) around the Gakke under the Koma clan. In modern times, opening of the Gagaku genealogy, which was determined along with the establishment of Gakakukyoku aroused largely two questions: the first question was about the genealogy by Gakke, that is, the framework of transmission; and the second one about Gaknins, the subjects of transmission. After the modern times, the Gagaku genealogy was transmitted under the same condition regardless of Gakke. In other words, this means that the transmission framework of Gakke disappeared. Therefore, it is doubtful whether there have not been any adverse effects, difficulties derived from the lack of tradition. In addition, Gaknins acted as the subjects of Gagaku transmission within boundary of Gakke. However, they should play a role not as Gakke, but as a member of Gakakukyoku, since the modern times. Then, what activities did Gaknins from Gakke show at that time? The answer to the first question is that most of Gaknins were from Gakke when Gakakukyoku was established, and their majors generally corresponded to professional areas of individual Gakke, recorded in _Aksoboim_. The genealogy of Gaknins and Gakke, from Gakuso(楽所) in the Heian period(平安時代) to Sampougakuso(三方楽所) in the Edo period was maintained, when Gakakukyoku was established, in spite of institutional transition with the motto of "opening". Activities of Gaknins were also examined to show that about 20 Gakunins of the Koma clan participated in Gagakukyoku, when it was established. These Gakunins were extremely skillful at performing Gagaku as well as Western music newly introduced, so they could play important roles in playing musical instruments and even composition and schooling. Such activities of Gaknins are very meaningful, in that they provided the culturalhistorical foundation for transmission and succession of Gagaku and development and education of the modern Western music. Moreover, Gaknins as senders who introduced Gagaku to the ancient Japan are more meaningful, given the fact that most of them who left a lot of achievement and footmarks at that time were descendants of clans from ancient Korea. In conclusion, Japanese Gagaku has been transmitted and developed, due to roles and activities if Gaknins from ancient Korea and also could overcome the period of opening and confusion, based on their activities, in modern times.