http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
밀랍을 이용한 금속활자의 대량주조법과 주형토의 물리적 특성에 대한 실험연구
이승철 한국서지학회 2007 서지학연구 Vol.37 No.-
This study, following the previous research on the test for the soil of mold in lost-wax casting method (published in June 2006), analyzed the method of mass production for casting metal movable types using beeswax and the physical characteristics of casting materials.It is too early to argue that the method of lost-wax casting is successfully restored, even though we find the casting materials. For instance, there are some questions to be answered regarding how much beeswax was required, and whether it is indeed economical to make types using beeswax. Even though the beeswax was easily available and used commonly for casting in those days, the huge amount of beeswax could have been needed for casting tens or dozens of thousands letters. Moreover, we have to find out the way for casting more movable metal types simultaneously rather than the casting method as presented in the previous experiments.In order to make the conditions of casting the types more objective, theorize the findings, and build the data more practically, all the conditions of the experiments such as the process of extracting beeswax and its required quantities, the quantity of types to be cast at once, the form of molds, and the physical characteristics of casting materials etc. are recorded and analyzed in this experiment.The conditions of this experiment are as follows: ① Letter types: more than 100 letters selected from Jikji ② Materials for making the mother letters & type-setting: natural beeswax ③ Mold materials: clay mixed with soft stone + yellow clay + sand ④ Metal materials: mixture-materials with bronze, tartar, lead ⑤ Used fuel: charcoal & boneblack ⑥ Experimental temperature and humidity: 20-30℃/40-70% ⑦ Place of experiment: Goesan-gun, Yeonpung-myeon. 본 연구는 이미 발표된 <밀랍주조법의 주물토에 관한 실험연구>(이승철, 서지학회, 2006.6.)에 이은 후속 실험연구로 밀랍을 이용한 금속활자의 대량주조 방법과 주형재료에 대한 물리적 특성을 분석한 것이다. 주형재료를 찾아낸 것만으로 밀랍주조법의 성공과 복원을 설명하기엔 아직 이르다. 예를 들면, 밀랍을 이용해 활자를 만들 때 밀랍의 소요량 정도와 그것이 과연 경제적이었냐 하는 것에 대한 문제를 생각해 볼 수 있다. 당시 밀랍을 쉽게 구할 수 있고 밀랍을 이용한 주물이 일반적이었다 하더라도 수만에서 수십만 자를 주조하기 위해 사용된 밀랍의 양은 엄청났을 것으로 추정되기 때문이다. 또한 책을 찍어내는 데 필요한 수십만 자의 활자를 주조하려면 기왕의 실험에서 제시한 주조법보다는 한 번에 더 많은 수의 활자를 주조할 수 있는 방법도 찾아져야 한다. 본 실험에서는 밀랍을 이용한 활자주조 조건을 보다 객관적이고 실제적으로 이론 및 자료화하기 위하여 밀랍추출 과정과 추출 및 소요량, 한 번에 주조 가능한 활자의 수량과 주형의 형태, 주형재료의 물리적 특성 등 각각의 조건들을 실험 과정별로 정리하고 분석한 것이다. 실험 환경과 조건은 다음과 같다.: ① 글자본: 직지에서 선정한 100여 字 ② 어미자 및 조판재료: 천연밀랍 ③ 주형재료: 석비레(이암)+황토+모래 ④ 금속재료: 청동, 주석, 납 등을 혼합한 母合金 ⑤ 사용연료: 숯 및 돌탄(곡수) ⑥ 실험온도 및 습도: 20-30℃/40-70% ⑦ 실험장소: 괴산군 연풍(임인호 작업실).
편의점 베이커리의 지각된 가치가 태도 및 행동의도에 미치는 영향에 관한 연구 - R을 이용한 구조방정식모델링 -
이승철 한국호텔리조트학회 2024 호텔리조트연구 Vol.23 No.2
The purpose of this study is to examine the relationship between the perceived value of consumers for convenience store bakery products on attitudes and behavioral intentions, and to verify the mediating effect of attitudes accordingly. To this end, this study was conducted for convenience store bakery purchasing customers (n=349) as an open source R package program, and specific suggestions and implications are as follows. First, it was found that the practical value and emotional value of perceived value had a significant positive (+) effect on attitude, and social value had no influence relationship. Second, it was confirmed that all factors of perceived value had no influence on behavioral intention. Hypothesis 3 attitude was found to have a significant positive (+) effect on behavioral intention. Fourth, as a result of the mediating effect of attitude on the influence relationship between perceived value and behavioral intention, a complete mediating effect was found in practical value and emotional value, and the total effect of attitude was confirmed to be significant. As a result, in order to promote behavioral intentions, securing bakery products to secure a degree of positive perception of the product so that a positive attitude can increase is considered to be an effective means. In addition, in order to induce consumers to purchase convenience store bakery products, it is necessary to first instill a positive perception of consumption value on perceived values such as practical value, emotional value, and social value, and focus on positive attitudes such as good feeling, excellent products, trust, and interest/likes about the product.
이승철 한국생화학분자생물학회 1992 생화학분자생물학회 소식 Vol.12 No.4
Many studies have established the mechanism of translocation of presecretory proteins across the cytoplasmic membrane of Escherichia coli. Translocation requires two kinds of proteins, soluble chaperone and membrane bound translocase. Sec B. the major chaperone, forms a complex with preproteins. Translocase consists of several peripheral and integral membrane proteins-Sec A, Sec E, Sec Y, Sec D and Sec F. Translocation also needs two kinds of energies, ATP and proton motive force (△μH^{+}).