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동의보감(東醫寶鑑) 중(中) 길경(桔梗)이 주약(主藥)으로 배오(配伍)된 방제(方劑)의 활용(活用)에 대한 고찰(考察)
이태형,이성준,허진,신동근,이재철,신용서,윤용갑,Lee, Tae-Hyung,Lee, Sung-Jun,Huh, Jin,Shin, Dong-Gean,Lee, Jae-Cheol,Shin, Yong-Seo,Yun, Young-Gab 대한한의학방제학회 2010 大韓韓醫學方劑學會誌 Vol.18 No.1
This report describes 90 prescriptions related to the use of Platycodi Radix main blended from Dongeuibogam. The following conclusions were reached through investigations on the prescriptions that use Platycodi Radix as a key component. Prescriptions that Platycodi Radix was taken as a monarch drug are utilized for 30 therapeutic purposes, for example, cough disease, throat disease, abscess and pus, and wind disease. In particular, 12.1% of prescriptions appear in the chapter of cough, and 9.9% of those appear in the chapter of throat, and each 8.8% of those appear in the chapter of abscess and of wind disease. Prescriptions that utilize Platycodi Radix as the main ingredient are used in the treatment of cough disease, throat disease and abscess, and they are also used for treating 74 different types of disease. The prescriptions are compounded with Platycodi Radix as a monarch drug are related to exogenous agents such as wind-cold pathogen, wind-heat pathogen, epidemic diseases, and endogenous agents such as seven emotions, and non-endo-exopathogenic factors like excessive labor, deficiency of Qi and blood, phlegm-mass, phlegm-fire, ect. The dosage of Platycodi Radix is 2pun(about 0.75g) to 1nyang(about 37.5g), however 1don (about 3.75g) has been taken the most for clinical application. We can find out that according to herbs or prescriptions blended with it self, Platycodi Radix makes a variety of functions to penetrate lung stagnancy and remove phlegm, relieve throat pain and get rid of pus, and regulate Qi flow. And Gamgiltang is the most useful base prescription which used the Platycodi Radix as the main component.
마하젠더 간섭계로 구성된 실리카 평판 광 도파회로 트라이플렉서의 설계 및 분석
이태형,이동현,정영철,Lee, Tae-Hyung,Lee, Dong-Hyun,Chung, Young-Chul 한국광학회 2007 한국광학회지 Vol.18 No.6
실리카 평판 광집적회로 마하젠더 간섭 구조를 이용한 트라이플렉서를 제안하고, 시뮬레이션을 통해 그 특성을 분석하였다. 1310 nm 대역과 $1480{\sim}1560nm$ 대역을 분리하기 위하여 마하젠더 암의 길이 차는 1310 nm 파장의 정수배 더하기 반 파장으로 하고, 방향성 결합기의 균형도는 $1480{\sim}1560nm$ 대역에서 적정화하였다. 이와 같은 마하젠더 간섭 구조를 한 단 더 사용함으로써, 매우 우수한 채널 누화 특성을 얻을 수 있었다. 1490 nm 대역과 1550 nm 대역을 추가적으로 분리하기 위하여 마하젠더 간섭구조를 추가로 두 단 더 사용하였다. 삼차원 BPM과 전송행렬방법을 통하여 각 채널들 사이의 낮은 누화 특성을 확인하였고, 제작 과정에서 발생할 수 있는 공정오차에 둔감한 특성을 보임을 확인하였다. A triplexer based on a silica planar lightwave circuit Mach-Zehnder nterferometer(MZI) is proposed and its characteristics are analyzed through simulations. To separate 1310 nm band and $1480{\sim}1560nm$ band properly, the path length difference of an MZI is set to be the multiple and half of the wavelength 1310 nm and the balance of the directional coupler is optimized in the $1480{\sim}1560nm$ band. The same MZI is additionally cascaded to provide good crosstalk characteristics. The 1490 nm band and 1550 nm band are further separated using additional two stage MZI's. A three-dimensional BPM and transfer matrix method analysis predicts the low crosstalk characteristics and the fabrication-error-tolerance of the proposed triplexer.
이태형,Lee, Tae-Hyeong 한국과학기술단체총연합회 1995 과학과 기술 Vol.28 No.1
신비롭고 아름다운 밤하늘의 별자리를 관측하는 동호인들의 모임으로 한국 아마추어 천문학회는 91년에 재창단되어 「별의 축제」등 우주관측행사를 벌이고 있다.
졸 겔 법을 이용한 Cao-SiO<sub>2</sub>계 겔의 합성 및 구조분석
이태형,이수정,황연,김일용,조성백,Lee, Tae-Hyung,Lee, Su-Jeong,Hwang, Yeon,Kim, Ill-Young,Ohtsuki, Chikara,Cho, Sung-Baek 한국세라믹학회 2008 한국세라믹학회지 Vol.45 No.10
It has been proposed that the Cao-$SiO_2$ binary system can be good basic composition of bioactive glasses and glass-ceramics. In the present study, various kinds of Cao-$SiO_2$ gels were prepared by sol-gel method in order to control the microstructure which are related to their dissolution rate, induction period of apatite formation in body environment. Characterization of the gels were done by wet chemical analysis, SEM observation, FT-IR spectroscopy and XRD. The gelation time decreased with CaO content. However, the volume of all the dried gel decreased to 50% of the wet gels irrespective of increasement of CaO content. All the Cao-$SiO_2$ gels were amorphous and contained a large amount of silanol groups on their surfaces after heat treatment up to $800^{\circ}C$. The interconnected structure of the gel changed to agglomerated spherical powders when Ca content exceed to 20 mol%. Most of the Cao-$SiO_2$ gel showed amorphous when heat-treated up to $900^{\circ}C$. However, quartz and cristobalite was produced when heat-treated at $1000^{\circ}C$ and resultant microstructure of the gel contained microporous structure.
이태형,Lee, Tae-Hyeong 한국시스템엔지니어링협회 2004 시스템엔지니어링워크숍 Vol.4 No.-
시스템 엔지니어링은 시스템의 일생 주기동안 수행되며 고장정보체계(Failure Reporting and Corrective Action System)는 제작단계부터 수행되는 RAMS(Reliability, Availability,Manitani bility,safety)과업 중의 하나이다. 고장정보체계는 설계와 제작단계에서 생성된 고장원인을 제거하고 수정작업을 구현하기 위한 방법을 제공한다. 본 논문에서는 한국형 고속열차를 대상으로 고장정보 분석 및 관리, 신뢰도 평가를 위해 구축한 고장정보체계와 그 활용사례를 제시한다.
이태형,서승일,박춘수,유한성,김기환,Lee, Tae-Hyung,Seo, Sung-Il,Park, Choon-Soo,Yoo, Han-Sung,Kim, Ki-Hwan 한국시스템엔지니어링학회 2005 시스템엔지니어링학술지 Vol.1 No.1
Systems Engineering is the process that controls the technical system development effort with the goal of achieving an optimum balance of all system elements. FRACAS(Failure Reporting an d Corrective Action System) is one of RAMS(Reliability, Availability, Maintainability, Safety) tasks which is conducted from a manufacturing phase. FRACAS is to determine the basic cause of failure resulting from design or manufacture, and to provide a closed-loop method of implementing corrective action. This paper presents the FRACAS established for assessment of the reliability, the analysis and management of the failure data for Korean High Speed Train and application cases.
이태형,박춘수,Lee, Tae-Hyeong,Park, Chun-Su 한국시스템엔지니어링협회 2003 시스템엔지니어링워크숍 Vol.1 No.-
In this study, we have analyzed the cost of korea high-speed railway system. The predicted cost in planning phase and adjustment data to 5th year are collected. Then, predicted cost is compared with adjustment in year/item/system base. We make a project history table for criteria to review project history and research & development activity. We have developed CBS(cost breakdown structure) and allocated adjustment data to them. It is shown that cost prediction related to research & development activity in planning phase is relatively correct.