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A symptomatic lumbosacral perineural cyst -A case report-
최병희,김세영,김진모 대한마취통증의학회 2012 Korean Journal of Anesthesiology Vol.62 No.5
Lumbosacral perineural cysts are formed by the arachnoid membrane of the nerve root at the lumbosacral level. Most of these cysts are asymptomatic and are found incidentally during computed tomography (CT) or magnetic resonance imaging (MRI) for other causes of chronic lower back pain. This type of cyst requires a differential diagnosis to distinguish it from other causes of radiating pain and neurological symptoms. In the present case, a symptomatic lumbosacral perineural cyst was found, and pain relief was achieved by non-surgical treatment. A lumbosacral perineural cyst was identified from a differential diagnosis of a lumbar disc disorder that presented as radiating pain and neurological symptoms.
고치생산증대를 위한 의잠우열 분리와 자웅분리의 비교연구
최병희 한국잠사학회 1973 한국잠사곤충학회지 Vol.15 No.2
본연구는 "잠아우열분리제(BHC)"를 개발함으로서 의잠시 우열분리된 결과와 자웅분리한 결과를 비교한 것으로서 1. BHC 분리잠의 견질이 대조구보다 우수한 사실과 2. BHC 분리잠의 견질이 웅잠구보다 우수한 사실과 3. BHC 처리방법은 12∼13%의 농가소득증대의 결과를 초래함을 알게 되었다. 본방법은 내년부터 양잠농가가 쉽게 사용할 수 있는 것으로서 보급과정에 들어갈 수 있는 것이며 양잠기술의 혁명적 의의를 지니고 있다.
최병희,류창하,선우춘,정주환 한국자원공학회 2009 한국자원공학회지 Vol.46 No.2
인도네시아 파시르 탄광에서 적용되고 있는 전형적인 발파방법은 지표면을 유일한 자유면으로 하는 일자유면 노천발파 공법이다. 전형적인 발파패턴에서는 직경 200 mm, 천공장 9 m의 수직 발파공에 80∼130 kg의 ANFO를 장전한다. 이런 규모의 일자유면 발파는 매우 큰 지반진동을 발생시켜 채광장 경계사면의 안정성에 심각한 영향을 끼칠 수 있다. 선행연구 결과에 의하면 발파장소에서 50 m 떨어져 있는 사면의 안전을 보장할 수 있는 최대 공당장약량은 100 kg 정도이다. 따라서 사면과의 이격거리 50 m 이내의 개소에서 적용할 수 있는 공당장약량 100 kg 이하의 소규모 발파패턴을 설계하였다. 설계과정에서는 기존의 기폭패턴을 개선함으로써 지반진동을 저감시키고 컷오프 위험을 줄일 수 있도록 하였다. 또, 발파규모의 함수 h(W) 를 사용하여 사면안전에 대한 허용기준을 만족시킬 수 있는 적정 장약량 설계방법을 제시하였다. 아울러, 천공장 3.3~8.8 m에 대하여 몇 가지 표준적인 발파패턴을 마련하였다. A surface blasting method with a single free face is currently used in Pasir Coal Mine in Indonesia. In a typical round, 80~130 kg of ANFO is charged into a vertical hole with diameter of 200 mm and depth of 9 m. Blasting of such a scale can cause enormous ground vibrations, which, in turn, can affect the stability of nearby slopes comprising the various boundaries of the pits. According to the result of a previous research, the maximum charge weight that guarantees the stability of a slope that is 50 m away from the blast site is known to be 100 kg per hole. Thus, if we want to conduct safe blasting within the 50 m limit we should have a small-scale blasting method that has charge weight of less than 100 kg per hole. In this respect, we redesign the initiation sequence in order to decrease not only the ground vibration level but the possibility of cut-off as low as possible. We also suggest a systematic method that can be used to calculate the proper charge weight to meet safety restrictions for the slopes using the concept of a blast scale function h(W). Finally, we provide several standard blasting patterns for hole depths of 3.3~8.8 m.
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.
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.
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.
崔炳熙 서울대학교 1961 서울대학교 論文集 Vol.10 No.-
The theoretical treatment is give in this paper for longitudinal impact of silk yarn or raw silk yarn leads to a formula for the limiting breaking velocity. Because of periodical impact nature during the silk reeling process, this kind of studies are required for the safty operation of it. The limiting velocity of the reeling process is derived as 300 meters per minute with theoretical study. The theoretical treatment also leads to formulas for obtaining energy to any given stain. including rupture strain under different impact conditions so that the theoretical energy amount may be figured and designed with the automatic motion which is attached in the kennel system of the silk reeling machine. Meantine. a theoretical study of potential energy is mintioned to cause pressure on the winding reel during the reeling process.
최병희,송기언,유시환,김화연,이용우 한국잠사학회 1971 한국잠사곤충학회지 Vol.13 No.2
본 시험은 우리나라의 원료견질에 적합한 자동조사기의 기술체계를 확립하기 위한 연구로서 다음 결과를 얻었다. 1) 원료견 성상에 따른 생사량 및 조사능률을 감안한 합리적인 조사속도는 해서량호견(해서사장 850m)은 150m/min 내외, 해서중용견(해서사장 650m)은 120m/min 내외, 해서하량견(해서사장 500m)은 90~120m/min 이었다. 2) 건견온도별에 있어서 저온구(T$_3$)는 표준구(T$_1$) 및 고온구(T$_2$)에 비하여 해서율은 향상되나 사조고장은 증가하고 생사품위가 저하되었으며 생사량비율 및 부잠사양비율에 있어서는 유의차를 인정할 수 없었다. 3) 건견정도별에 있어서는 약건구(T$_3$)는 표준구(T$_1$) 및 과건구(T$_2$)에 비하여 해서율은 향상되었으나 사조고장이 증가하고 생사품위가 저하되었으며 생사량비율 및 부잠사량비율에 있어서는 유의차를 인정할 수 없었다. 따라서 자동조사의 합리적인 건견조건으로는 건견온도에 있어서 저온건견을 피하여 표준건견 내지 고온건견으로 하고 건견정도에 있어서는 약건을 피하여 표준건견내지 과건하는 방향으로 건조하는 것이 생사품위를 향상시키는데 적합하다고 사료된다. 4) 자동조사의 적합한 자견정도는 적자, 조사탕온도 4$0^{\circ}C$ 또는 약자, 조사탕온도 45$^{\circ}C$로 조절하여 주는것이 좋았다. This experiment was carried out to investigate the cocoon reeling condiditions required to technical balance work on the automatic silk reeling machine. The results obtained were as follows. 1) Reasonable reeling velocity with regard to raw silk yield and to reeling efficiency varied according to cocoon reelability. It was observed to be about 150m/min on good reelability cocoon (850m of nonbreaking bave length), about 120m/min on medium reelability cocoon (650m of nonbreaking bave length) and from 90m/min to 120m/min on bad reelability cocoon (500m of nonbreaking bave length) 2) Low temperature drying of cocoon (T$_3$) improved the reelability of cocoon, but increased the reeling accidance with deteriorating the quality of raw silk more than the control(T$_1$) or high temperature drying of cocoon (T$_2$). No significant difference was observed in its raw silk yield and silk by-product with regard to cocoon drying temperature. 3) Incomplete drying of cocoon (T$_3$) improved the reelability of cocoon, but increased the reeling accidance with deteriorating the quality of raw silk more than the control(T$_1$) or over drying of cocoon(T$_2$). No significant difference was observed in its raw silk yield and silk by-product with regard to cocoon drying degree. It was cocoon drying condition of cocoon was the control(T$_1$) or high temperature(T$_2$) rather than low temperature (T$_3$) in cocoon drying process. Control (T$_1$) or over drying of cocoon (T$_2$) was adequate rather than incomplete drying of cocoon (T$_3$) for the improvement of the quality of raw silk on the automatic silk reeling process. 4) It was found that the reasonable cooking condition of cocoon was optimum cooking with 4$0^{\circ}C$ of reeling temperature or incomplete cooking with 45$^{\circ}C$ of the reeling temperature in the automatic silk reeling of the domestic cocoon.
崔炳熙,金洛禎,朴光義,南重熙 서울대학교 1964 서울대학교 論文集 Vol.15 No.-
This treatise was carried out to study the heredity phenomenon of silk lousiness and the interaction of genes related with silk lousiness. It was also studied how to improve the silk lousiness of general raw silk by refining process because the mutational or selective process was found as unsatisfactory method. The conclusion reached were as follows. A. Conclusions related with genetic problem. 1. The decreased effects of the lousiness were 11% in the F₁hybrids. 2. Lousiness was considered to inherit as the incomplete dominance. 3. The effects of the lousiness gene were additive, and the lousiness of raw silk might be influenced by more than two genes. 4. The quantitative characters of cocoons were not genetically correlated with the occurance of lousiness. 5. Lousiness could not be said to occur more in the heavy-cocoon strains. 6. The microscopic lousiness test of this paper showed the same result of the international exforiation test. B. Conclusions related with lousiness improvement. 1. Raw silk was able to refine by the employment of 0.2% cationic softener solution for 30 minutes at 95℃ refining bath without the occurance of lousiness. 2. Anionic chemical softener was not available for silk refining process. 3. The above cationic softener refining process did not cause any physical defect for the silk fiber. 4. Soap refining process caused silk lousiness easily.