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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.
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,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.
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,김상수,김석원,김기환,정흥채,Lee, Tae-Hyung,Kim, Sang-Soo,Kim, Seog-Won,Kim, Ki-Hwan,Chung, Heung-Chai 한국시스템엔지니어링학회 2011 시스템엔지니어링학술지 Vol.7 No.2
A high-speed railway system represents a typical example of large-scale multi-disciplinary system, consisting of subsystems such as rolling-stock, electrical hardware, electronics, control, information, communication, civil technology etc. The system design and acquisition data of the large-scale system must be the subject under strict configuration control and management. Systems engineering technology development project for Korea next generation High-speed Electric Multiple Unit (HEMU) system in progress is a national large system development project that is not only a large-size and complex but also multi-disciplinary in nature. Therefore, all stakeholders must understand and share the functional and performance requirements of HEMU throughout its life-cycle phases. Also in the test and evaluation phase, all systems requirements must be verified. In 2011, the prototype train manufacturing will be completed. It will do test run on the commercial line and all systems requirements are verified until 2012. For the system verification, the test and evaluation process have to be established before the test trial run. Using a systems engineering tool, the system design database(SDD) with requirements traceability and development process management in the course of the development have to be established. This paper represents the test and evaluation process development based on the SEMP(Systems Engineering Management Plan) developed in the design stage. The test and evaluation process is refined and updated in comparison to the design stage one. The test and evaluation process consists of procedure, test and evaluation method and schedule. So through this process, it is defined that each systems requirements is verified on which test and about what time.