아키텍처 변환 패턴을 이용한 소프트웨어 시스템 진화 프레임워크

박태현,안휘,강성원,박종빈,황상철,Park, Taehyun,Ahn, Hwi,Kang, Sungwon,Park, Jongbin,Hwang, Sangcheol 한국정보과학회 소프트웨어공학 소사이어티 2013 소프트웨어공학회지 Vol.26 No.1

소프트웨어 시스템 진화는 소프트웨어 시스템의 유지보수의 일종으로 계획적이고 체계적인 유지보수 프로세스이다. 소프트웨어 진화 연구는 기존 시스템의 비용편익 분석을 통해 시스템의 유지가치에 대한 판단 근거를 제공하며, 아키텍처를 기반으로 하는 진화는 반복적인 진화 작업의 자동화를 가능케 하여 유지보수 비용 감소를 가능하게 해주는 연구이다. 본 논문에서는 아키텍처 변환패턴을 이용한 소프트웨어 시스템 진화 프레임워크를 제안한다. Software System Evolution is more planned and systematic maintenance process as well as a type of maintenance. The research of software evolution provides basis of decisions for maintenance value through cost-benefit analysis of legacy system and architecture-based software evolution enables engineers to reduce maintenance cost by automation of repetitive evolution tasks. This paper proposes a framework for software system evolution using architectural transformation pattern.

2차원 Confined 충돌 슬롯제트의 유선상류도식을 이용한 수치 해석

박태현,최형권,유정열,김상준,Park, Tae-Hyun,Choi, Hyoung-Gwon,Yoo, Jung-Yul,Kim, Sang-Joon 대한기계학회 2002 大韓機械學會論文集B Vol.26 No.12

In the present paper, flow and heat transfer characteristics of confined impinging slot jets have been numerically investigated using a SIMPLE-based segregated SUPG finite element method. For laminar jets, it is shown that the skin friction coefficient obtained from the present SUPG formulation approaches the grid-independent Galerkin solution inducing negligible false diffusion in the flow field when a moderate number of grid points are used. For turbulent jets, the k-$\omega$turbulence model is adopted. The streamwise mean velocity and the heat transfer coefficient respectively agree very well with existing experimental data within limited ranges of parameters.

사춘기에 우측상지에서 발생한 혈관육종

박태현,장성남,김동건,신규호 ( Tae Hyun Park,Sung Nam Chang,Dong Kun Kim,Kyoo Ho Shin ) 대한피부과학회 1997 대한피부과학회지 Vol.35 No.3

Cutaneous angiosarcorriias occur most commonly on the face and scalp of elderly individuals and are characterized by poor prognosis. We present a case of angiosarcoma in a 17-year-old boy not associated with any predisposing factors. The patient had three, ill-defined, 3 to 5 cm sized, erythematous, indurated subcutaneous nodules on the right upper extremity with a duration of 3 months. On histological examination, there were extravasated erythrocytes and irregular vascular channels lined by atypical endothelial cells in the dermis and subcutaneous tissue. The tumor cells appeared to dissect the collagen bundles. The patient was treated by wide surgical excision and post operative radiation therapy. However, 16 months after the operation, local recurrence was found to involve the close areas to the excision site on the right upper extremity and right axillary lymph nodes. (Kor J Dermatol 1997;35(3): 536-540)

키높이 인솔두께에 따른 족부의 생체역학적 특성변화에 대한 연구

박태현,정태곤,한동욱,이성재,Park, T.H.,Jung, T.G.,Han, D.W.,Lee, Sung-Jae 대한의용생체공학회 2013 의공학회지 Vol.34 No.2

Recently, functional insoles of wedge-type it is for the young to raise their height inserted between insole and heel cause foot pain and disease. Additionally, these have a problem with stability and excessively load-bearing during gait like high-heel shoes. In this study, we compared the changes in biomechanical characteristics of foot with different insole thickness then we will utilize for the development of the insole with the purpose of relieving the pain and disease. Subjects(male, n = 6) measured COP(center of pressure) and PCP(peak contact pressure) on the treadmill(140cm/s) using F-scan system and different insole thickness(0~50 mm) between sole and plantar surface during gait. Also, we computed changes of stresses at the foot using finite element model with various insole thickness during toe-off phase. COP moved anterior and medial direction and, PCP was increased at medial forefoot surface, $1^{st}$ and $2^{nd}$ metatarsophalangeal, ($9%{\uparrow}$) with thicker insoles and it was show sensitive increment as the insole thickness was increased from 40 mm to 50 mm. Change of the stress at the soft-tissue of plantar surface, $1^{st}$ metatarsal head represents rapid growth($36%{\uparrow}$). Also, lateral moments were increased over the 100% near the $1^{st}$ metatarsal as the insole thickness was increased from 0 mm to 30 mm. And it is show sensitive increment as the insole thickness changed 10 mm to 20 mm. As a result, it was expected that use of excessively thick insoles might cause unwanted foot pain at the forefoot region. Therefore, insole thickness under 30 mm was selected.

물 인프라 종합진단으로 사회안전망 구현

박태현,Park, Tae-Hyeon 한국수자원학회 2019 물과 미래(한국수자원학회지) Vol.52 No.2

CTOD 측정용 δ₅ Clip Gage 설계

박태현,남승훈,김엄기,Park, Tai-Heoun,Nahm, Seung-Hoon,Kim, Am-Kee 대한기계학회 2004 大韓機械學會論文集A Vol.28 No.4

The flaw assessment method based on ${delta}_5$ parameter was recently proposed and put to the practical use. However: since it is almost impossible to measure the ${delta}_5$ by the existing commercial clip gager, we need to develope the specially designed gages which are suitable for that purpose. In this research, a double cantilever type ${delta}_5$ clip gage with the traveling distance of 4mm was developed by the finite element analysis and the construction of Wheatstone bridge circuit including strain gages. The linearity of developed ${delta}_5$ clip gage was evaluated by the MTS extensometer calibrator with the proper adapters which allow the 6s clip gage to sit on the calibrator. Consequently, the 6s clip gage revealed the good linearity between the output voltage and the traveling distance of gage.

백령도 및 서울 대기오염집중측정소 에어로졸 질량 분석기 자료를 이용한 대기 중 에어로졸 화학적 특성 연구

박태현(Taehyun Park),반지희(Jihee Ban),강석원(Seokwon Kang),김영성(Young Sung Ghim),신혜정(Hye-Jung Shin),박종성(Jong Sung Park),박승명(Seung Myung Park),문광주(Kwang Joo Moon),임용재(Yong-Jae Lim),이민도(Min-Do Lee),이상보(Sang-Bo L 한국대기환경학회 2018 한국대기환경학회지 Vol.34 No.3

청소년 대상 라돈 위해 의사전달 경로 선정을 위한 인식도 조사 연구

박태현(Tae Hyun Park),전형진(Hyung Jin Jeon),강대용(Dae Ryong Kang),권명희(Myung Hee Kwon),박시현(Si Hyun Park),박세정(Se Jung Park),이철민(Cheol Min Lee) 한국환경보건학회 2017 한국환경보건학회지 Vol.43 No.5

Objectives: The purpose of this study is to obtain basic data on the development of a risk communication model through an investigation of risk perception for radon and identify effective risk communication channels. Methods: A questionnaire was used to evaluate differences in perception level according to respective communication channels. A chi-squared test was used to analyze the difference in pre- and post-risk communication by communication channel. One-way ANOVA was used to analyze the difference in the radon risk perception rate for each communication channel. Results: All of the communication channels resulted in increased radon risk perception, but there was no statistical difference between them in terms of perception (p>0.05). However, based on previous findings that it is effective to use a multi-channel approach, it is considered that communication channels based on duplicate avenues is most appropriate. Conclusions: It is expected that this study will be used as basic data to better understand the formation of public opinion about radon risk and to understand the social reaction to each risk factor.

전자파 차단을 위한 숼드캔용 고정 클립 개발에 관한 연구

박태현(Park, Tai-Heoun),박만규(Park, Man-Gyu),박상흡(Park, Sang-Heup),김기선(Kim Key-Sun) 한국산학기술학회 2013 한국산학기술학회논문지 Vol.14 No.2

본 연구에서는 양쪽 대칭으로 지지할 수 있는 쉴드캔 클립을 제안하며, 그 특징은 장착과 탈착의 하중을 일 정하게 하고 납땜 부위의 평판도를 유지 할 수 있도록 개발하였다. 또한 인쇄회로기판에 부착 고정되는 베이스부 및 쉴드캔의 측벽을 집게 형태로 집을 수 있도록 하는 클립부로 구성되며, 클립부 중앙을 절단하여 2군데를 지지 할 수 있게 이루어진다. 또한 넓어진 베이스부와 인쇄회로기판 사이에 납땜이 잘될 수 있도록 오목한 홈을 만들었다. 연구 절차는 우선 메커니즘을 설정하고 구조해석 및 진동모드 해석을 수행하여 설계변수를 확정한 후, 제품을 설계하였다. 제조를 위한 전용기를 개발한 후 시제품을 제작하여 성능 평가 후 해석값과 비교 분석하였다. This study proposes an structure that fixes the shielding device to two parts of the board by its two arranged clips. Said structure evenly distributes its loading/unloading load of the board and maintains the flatness of soldering area of the board. The structure of this study comprises a base part fixed to a printed circuit board and a clip part fixing a side wall of a shield can to the board, wherein the clip part is constituted with two clips fixable to two part of the shield can. Also, the structure of this study comprises a dented groove in order to easily solder the base part of clips and the printed circuit board. A mechanism is established and a design parameter was determined by a structure analysis and a vibration mode analysis. A single purpose machine for the production of the product was developed, the final workpiece was produced and the measuring-data and the computered-data was compared and reviewed.

아브라함 카이퍼의 일반은총론 소고(小考)

박태현(Park Tae Hyeun) 개혁신학회 2014 개혁논총 Vol.31 No.-

신칼빈주의(neo-calvinisme)'운동의 선구자인 아브라함 카이퍼는 1880년 자유대학교 개교 연설에서'영역주권'이란 크게 외쳤다.' 영역주권'은 개혁파 신학의 기초를 놓은 16세기 제네바의 개혁자 존 칼빈(John Calvin, 1509-1564)의 하나님의 절대주권 사상을 다시 주창하였을 뿐만 아니라, 한 걸음 더 나아가 이 절대주권 사상을 인간의 보편적 삶의 모든 영역에 구체적으로 적용할 것을 강조한 신학사상이다. 이 영역주권 사상은 무엇보다도 일반은총 교리와 밀접하게 연관된다. 일반은총 교리는 예수 그리스도 안에서 약속된 구원을 얻는 특별은총 교리와 짝을 이루는 것으로 인간 삶의 모든 영역에서의 하나님의 주권사상을 잘 드러낸 교리이다. 불행하게도 오늘날 많은 한국교회는 세상의 빛과 소금으로서의 그 역할과 존재성을 상실하고, 마침내 사람들의 발에 밟히는 수모를 겪고 있다. 동시에 교회 내부적으로는'나만 잘 믿고 복 받으면 된다'는 기복신앙으로 만연된 신자들이 적지 않다. 어떤 의미에서 세상으로부터 동떨어진'도피성'경건주의자들이 많은 현실이다. 이러한 때에 신자들과 교회가 다시금 우리의 선행의 빛을 통해 세상 사람들로 하여금 하늘에 계신 하나님께 영광을 돌리도록 살아야 할 책무(마5:16)를 상기하는 것이 필요하다. 이것이 바로 약 120여 년 전에 네덜란드의 개혁파 신학자 아브라함 카이퍼가 일반은총 교리를 통해 이루고자 했던 비전이다. At the inaugration speech of Free University in 1880, Abraham Kuyper, a pioneer of 'neo-calvinisme' movement, shouts 'the sphere of sovereignty' to the world. 'The sphere of sovereignty' is a theological idea that advocates again the idea of the absolute sovereignty of God emphasized by the 16th century Genvan Reformer John Calvin(1509-1564), who laid the base of reformed theology. Moreover, 'the sphere of sovereignty' also stresses that the absolute sovereignty of God should specifically be applied to all domain of people's life. It is above all intimately related to the doctrine of common grace. The doctrine of common grace is a counterpart to the doctrine of particular grace which gives salvation promised in Jesus Christ. Unfortunately nowadays many Korean churches lost her role and existence as the light and salt of the world, and greatly suffers to be trempled by people. At the same time there are many christians in the church who think 'Everything is Ok, only if I may be blessed.' In a sense it cannot be denied that there are many so called 'godly' people secluded themselves from society. In this situation we christians need to remind our responsibility to let our light shine before men, that they may see our good deeds and praise our Father in heaven (Matt. 5:16). This is the very vision that Dutch reforemd theologian Abraham Kuyper wanted to achieve by promoting the doctrine of common grace around 120 years ago.