韓國家畜蠶繭 繭絲纖度가 生絲纖度偏差에 미치는 影響

崔炳熙,金東旭 서울대학교 1962 서울대학교 論文集 Vol.12 No.-

This report is prepared to find how the cocoon bave of filament size deviation relates with the raw silk made by them which are intensively cultured in this country. Three recommended hybrid varieties and two varieties under working at Suwon Sericultural Experiment Station were selected as specimens. The cocoons were reeled as an indivisual filament of every fifty meters long skein with a wrap reel to weigh the denier and to investigate the relationship of the above statement so that it may be used for the quality estimation before processing it into raw silk. The conclusions obtainde are as followings. (1) The variety of Pk x Sn was found as best cocoon 21 denier raw silk use but the number of cocoon to make the denier has to be eight which might cause more labor cost. (2) Baektoo-Kumkang and Myohiang-Chongchon were found as economical varieties for 21 denier use. (3) Seulak-Soyang is a proper variety for the use of 14 or 28 denier silk use. (4) Myohiang-Chongchon did not confirm a good property from the aspect of denier deviation. (5) It was found that there was a fairly strong corelationship between the mean cocoon bave size and the total cocoon bave size deviation as indicated by Ono's report. (6) Three graphs were prepared to estimate the cocoon quality before processing into various sizes of raw silk using the mean cocoon bave size and the raw silk size to be prepared. (7) Mean time, the graph which is able to estimate the expectable grade of the raw silk size divation was designed for the practical use. (8) The expectable grade of the varieties used in this report were found as following data. ◁표삽입▷(원문을 참조하세요.) (9) The result of the work concerning the expectable denier deviation on 21 denier silk was the same with the statistical actural testing result as 1.25 D while the distribution showed further necessity of improvement in technicallity.

比律賓訪問紀行

崔炳熙 세계평화교수협의회 1977 廣場 Vol.1977 No.49

Factors related to the parallel use of complementary and alternative medicine with conventional medicine among patients with chronic conditions in South Korea

최병희,한동운,나선삼,임병묵 한국한의학연구원 2017 Integrative Medicine Research Vol.6 No.2

Background: This study aims to examine the characteristics and behavioral patterns of patients with chronic conditions behind their parallel use of the conventional medicine (CM) and the complementary and alternative medicine (CAM) that includes traditional Korean Medicine (KM). Methods: This cross-sectional study used the self-administered anonymous survey method to obtain the results from inpatients who were staying in three hospitals in Gyeongnam province in Korea. Results: Of the 423 participants surveyed, 334 participants (79.0%) used some form of CAM among which KM therapies were the most common modalities. The results of a logistic regression analysis showed that the parallel use pattern was most apparent in the groups aged over 40. Patients with hypertension or joint diseases were seen to have higher propensity to show the parallel use patterns, whereas patients with diabetes were not. In addition, many sociodemographic and health-related characteristics are related to the patterns of the parallel use of CAM and CM. Conclusion: In the rural area of Korea, most inpatients who used CM for the management of chronic conditions used CAM in parallel. KM was the most common in CAM modalities, and the aspect of parallel use varied according to the disease conditions.

MM-ALE 유한요소 시뮬레이션을 이용한 수중 어뢰폭발에서의 최악파편의 종단속도 추정

최병희,류창하 대한화약발파공학회 2019 화약발파 Vol.37 No.3

This paper was prepared to investigate the behavior of fragments in underwater torpedo explosion beneath a frigate or surface ship by using an explicit finite element analysis. In this study, a fluid-structure interaction (FSI) methodology, called the multi-material arbitrary Lagrangian-Eulerian (MM-ALE) approach in LS-DYNA, was employed to obtain the responses of the torpedo fragments and frigate hull to the explosion. The Euler models for the analysis were comprised of air, water, and explosive, while the Lagrange models consisted of the fragment and the hull. The focus of this modeling was to examine whether a worst-case fragment could penetrate the frigate hull located close (4.5 m) to the exploding torpedo. The simulation was performed in two separate steps. At first, with the assumption that the expanding skin of the torpedo had been torn apart by consuming 30% of the explosive energy, the initial velocity of the worst-case fragment was sought based on a well-known experimental result concerning the fragment velocity in underwater bomb explosion. Then, the terminal velocity of the worst-case fragment that is expected to occur before the fragment hit the frigate hull was sought in the second step. Under the given conditions, the possible initial velocities of the worst-case fragment were found to be very fast (400 and 1000 m/s). But, the velocity difference between the fragment and the hull was merely 4 m/s at the instant of collision. This result was likely to be due to both the tremendous drag force exerted by the water and the non-failure condition given to the frigate hull. Anyway, at least under the given conditions, it is thought that the worst-case fragment seldom penetrate the frigate hull because there is no significant velocity difference between them. 본 논문은 명시적 유한요소 해석을 이용하여 군함이나 수상함 아래의 수중에서 어뢰가 폭발할 때의 파편들의 거동을 조사하기 위하여 작성되었다. 본 연구에서는 LS-DYNA에서 라그랑주-오일러 (ALE) 접근법이라 불리는 유체-구조물 상호작용(FSI) 기법을 적용하여 어뢰파편과 선체의 응답을 관찰하였다. 오일러 모델은 공기, 물, 폭약으로 구성되며, 라그랑주 모델은 파편과 선체로 이루어져 있다. 본 모델링의 핵심은 최악파편이 어뢰로부터가까운 곳(4.5 m)에 위치한 선체에 파공을 일으킬 수 있는지 여부를 파악하는 데 있다. 시뮬레이션은 별도의 두단계로 수행되었다. 첫 번째의 예비해석에서는 팽창하는 어뢰의 외피가 찢어지는 데 폭약에너지의 30%가 소모된다는 가정 하에 수중폭발 시의 파편속도에 대해 잘 알려져 있는 실험결과를 토대로 최악파편의 초기속도를 결정하였다. 두 번째의 총괄해석에서는 최악파편이 선체에 부딪치기 직전에 보일 것으로 예상되는 파편의 종단속도를찾고자 하였다. 그 결과, 주어진 조건 하에서 최악파편의 초기속도는 매우 빠른 것으로 나타났다(400 및 1000 m/s). 하지만 충돌이 발생할 때의 파편과 선체 간의 속도차이는 불과 4 m/s 정도로 매우 작았다. 이 결과는 물에의한 큰 항력의 영향도 있지만 선체에 부여한 비파괴 조건도 영향을 끼쳤을 것으로 보인다. 하지만 적어도 본 논문에서 가정한 해석조건 하에서는 최악파편의 느린 상대속도로 인하여 선체에 파공이 발생하기는 어려운 것으로나타났다.

SPH-FEM 연계기법을 이용한 MDS 발파법의 기폭패턴별 암석파괴 효과 분석

최병희,김영근,전기찬,오세욱 대한화약발파공학회 2023 화약발파 Vol.41 No.3

The conventional bench blasting method uses the bottom initiation in all blast holes in a round, whereas the MDS (mixture detonation system) method applies the bottom and top initiations alternately according to the spatial position or temporal sequence of each blast hole. The former and latter are respectively called the SMDS (spatial MDS) and TMDS (temporal MDS) methods. Another variant called MMDS (modified MDS) is designed for the specific use in the site having a fly-rock problem. This study compares the MDS method to the conventional method in the aspect of rock fracturing effect. The comparison is made by numerical simulations for a two-row bench blasting model in the LS-DYNA. The SPH-FEM coupling method is utilized for constructing the blasting model. The SPH elements are used for the rock in the near-field region of the blast holes, and the FEM elements for that in the far-field region. The RHT material model is used for the rock. As a result of the simulations, it was found that up to 0.4 m deeper damaged zone was appeared in the SMDS method than in the conventional method for the case of the burden 1.6 m and bench height 3.0 m. In addition, the fly-rock velocity to the normal direction of the bench slope was appeared about 2.0 m/s lower in the MMDS method compared to the other methods.

호흡기 알레르기 질환에 있어서 호염기구로부터의 항원 매개성 히스타민 유리

최병희,김미경,민경업,김유영 대한천식알레르기학회 1988 추계학술대회 초록집 Vol.1988 No.-

싸리속(콩과) 미기록 귀화식물 : 분홍싸리

최병희,한정은 한국식물분류학회 2007 식물 분류학회지 Vol.37 No.1

A naturalized plant of Leguminosae is reported in Korea. L. fioribunda belongs to subgenus Lespedeza of Lespedeza which is characterized by having chasmogamous flowers. The plant is native in China and recently naturalized in Seoul and Chungcheongnam Province of Korea. A key to the species of subgenus Lespedeza in Korea including L. floribunda is provided. 콩과 싸리속에 속하는 국내 미기록 귀화식물 분홍싸리(Lespedeza floribunda)를 발견하였다. 본 종은 폐쇄화를 갖는 점에서 싸리아속에 속한다. 이 종은 중국원산으로, 최근에 서울 마포구와 충남 금산의 공원에서 발견되었다. 분홍싸리를 포함한 한국산 싸리아속의 종 검색표를 작성하였다.

敎授手帖

崔炳熙 세계평화교수협의회 1980 廣場 Vol.86 No.-

織物技術用語要約

최병희,Choe, Byong-Hee 한국잠사학회 1981 한국잠사곤충학회지 Vol.23 No.1

마취제처리에 의한 잠아선발에 대한 연구(II)

최병희,이상풍 한국잠사학회 1973 한국잠사곤충학회지 Vol.15 No.2

본연구는 육종선발 및 원잠종증식과정에서 5령기에 잠아를 마석시킨 다음 회생시간의 차이로 3구분으로 분리하여 얻어진 견질의 차이를 조사한 결과ㆍ마취제사용이 1. 잠아건강성과 밀접한 관계가 있는 사실을 알렸으며 2. 육종과정에서 잠아선발의 기준방법으로 사용할 수 있는 것을 알렸으며 3. 원종제조과정에서 마취제 사용으로 균일성 있는 차대교잡생산에 도움이 되고 또한 잠종퇴화기간을 연장시킬 수 있는 방법임을 일러냈다. 따라서 본연구는 잠아육종 및 원종증식과정에서 새로운 기술체계를 제안하는 결과로 된다.