젊은이 발언대 -축산업계에 대한 나의 바람

최석호 대한양계협회 1980 월간 양계 Vol.12 No.4

젊은이들의 날카롭고 신선한 눈으로 보는 업계와 그 문제점은 어떠한가? 본지에서는 4월호부터 '젊은이의 발언대'난을 신설하여 젊은이들의 많은 참여를 바라고 있다. 이번호는 그 첫벗째로서 최석호군의 눈에 비친 업계와 그 비젼을 들어본다.

수소화된 보상형 비정질 규소에서 잔류 광전기전도도의 조사시간 및 온도 의존성에 관한 연구

최석호 慶熙大學校 材料科學技術硏究所 1992 材料科學技術硏究論集 Vol.5 No.-

Persistent photoconductivity (PPC) in compensated a-Si:H has been investigated as a function of exposure time and illumination temperature. It is found that the PPC is thermally activated when the Fermi level is situated near the center of the band gap. The activation energy follows a power-law dependence on the exposure time, where the power-law exponent is temperature independent. We find that the value of the exponent is 0.15-0.20, smaller than predicted by the dangling-bond model for PPC. These results oppose the thermal-equilibrium model that the PPC effect is a manifestation of the thermal equilibrium of the defect structure.

여가산업과 여가정책

최석호 한국여가레크리에이션학회 2014 한국여가레크리에이션학회 학술세미나자료집 Vol.2014 No.5

다공성 실리콘의 전기전도 및 발광 특성에 미치는 흡착효과

최석호 대한전자공학회 1995 대한전자공학회 학술대회 Vol.1995 No.1

한국사회 일과 여가의 변동 추이: 경제위기 시점을 중심으로

최석호,천혜정 여가문화학회 2013 여가학연구 Vol.10 No.3

본 연구는 한국사회 일과 여가에서 나타난 변동의 전반적인 경향을 추적하고, 특히 1997년 외환위기와 2008년 금융위기를 겪으면서 나타난 일과 여가의 변동 양상을 파악하고자 한다. 또한 이론적인 측면에서는 탈산업사회론과 신소비자이론 중에서 일과 여가의 변동에 대한 설명력이 보다 높은 이론이 무엇인지를 구획하고자 한다. 한국사회가 경제성장을 시작한 1960년대 이후 지속적으로 상승하던 노동시간은 1980년대 초를 고비로 줄어들기 시작하였으나 IMF 관리체제하에 들어가면서 노동시간이 다시 증가하고 실업률이 높아졌으며 비정규직 노동자의 수가 급증하면서 노동시장의 불안정성이 확대되었다. 또한 교육수준별 임금격차의 확대로 소득불평등이 급속도로 심화되었고 그 결과 여가활동에 필요한 돈과 시간의 균형이 상실됨으로써 여가의 양극화 현상이 나타났다. 따라서 노동시간의 감소와 여가시간의 증가 등을 주장한 탈산업사회론보다는 시간의 희소성 증가를 주장한 약탈당한 여가계급론이 한국사회 일과 여가의 변동 양상을 더 잘 설명하고 있음을 알 수 있다. 그러나 경제위기 이외의 시점에서는 일과 여가에서 특별한 경향성은 존재하지 않았다. This study consists of two parts. One is the theoretical concern in order to demarcate the theories, namely post-industrial society theory and the economic theory of the consumption/work trade-off, which provide the explanation for the change of work and leisure. The other is the empirical concerns which trace the overall trends of leisure and work in the sequence of economic growth in Korea and grasp the meaning of the change of work and leisure through economic crisis. One of the most peculiar changes of work by the economic crisis was destabilization of labor market. Unstable labor market was concluded with polarized leisure. Expired people have no money for leisure and employed people have no time for leisure. The change of leisure activities and the leisure satisfaction by the economic crisis was closely related. General leisure satisfaction was falling and the passive leisure activities were mainly chosen. Which theory has more power of explanation or more relevance to the change of work and leisure is distinguished by this theoretical discussion and empirical study. In conclusion, economic theories such as Becker’s new theory of consumer behavior, Linder’s harried leisure class, or Schor’s ‘cycle of work-and-spend’have more power of explanation on the change of work and leisure time in Korea than the theory of post-industrialism. But it is impossible to demarcate the explanatory power of two theories before economic crisis because work time and leisure time have been fluctuated. There are no tendencies or trend of work and leisure time.

Mark Twain의 생애와 작품

최석호 慶熙大學校 문리과대학 1965 文理學叢 Vol.3 No.1

Improved Detection of Viable Escherichia coli O157:H7 in Milk by Using Reverse Transcriptase-PCR

최석호,이승배 한국축산식품학회 2011 한국축산식품학회지 Vol.31 No.2

A sensitive reverse transcriptase-PCR (RT-PCR) method to detect viable Escherichia coli O157:H7 in milk was established. The primer sets were designed based on the nucleotide sequences of the rfbE (per) and wbdN genes in the O157antigen gene cluster of E. coli O157:H7. RT-PCR using five different primer sets yielded DNA with sizes of 655, 518, 450,and 149-bp, respectively. All five of the E. coli O157:H7 strains were detected by RT-PCR, but 11 other bacterial species were not. The sensitivity of RT-PCR was improved by adding yeast tRNA as a carrier to the crude RNA extract. The RTPCR amplifying the 149-bp DNA fragment was the most sensitive for detecting E. coli O157:H7 and the most refractory to the bactericidal treatments. Heat treatment at 65oC for 30 min was the least inhibitory of all bactericidal treatments. Treatment with RNase A strongly inhibited the RT-PCR of heated milk but not unheated milk. This study described RT-PCR methods that are specific and sensitive with a detection limit of 10 E. coli O157:H7 cells, and showed that pre-treating milk samples with RNase A improved the specificity to detect viable bacteria by RT-PCR.

극저습 공조실의 환기성능에 대한 수치적 모사

최석호,이관수,Choe, Seok-Ho,Lee, Gwan-Su 대한기계학회 2002 大韓機械學會論文集B Vol.26 No.4

The characteristics of moisture ventilation in a dry room were studied numerically The effect of three important parameters: position of outlets, aspect ratio($\beta$) of horizontal plane and air exchange rate(N), was analyzed by using the scales of ventilation efficiency. The ventilation performance was evaluated by varying the aspect ratio and air exchange rate in the four types of outlet position. It was shown that the ventilation performance was improved by decreasing the aspect ratio in the longitudinal arrangement of outlet. The highest ventilation performance was determined when $\beta$ was 4 in the transverse arrangement of outlet. Regardless of the aspect ratio, the ceiling arrangement of outlet played more dominant effect on the ventilation efficiency than the floor arrangement. In every type and aspect ratio, the increase of air exchange rate to improve ventilation performance was appropriate up to N=60 /h.

유산균 성장용 단백질급원 배지의 개선에 관한 연구

최석호,윤영호,김현욱 ( Suck Ho Choi,Young Ho Yoon,Hyun Uk Kim ) 한국축산학회 1981 한국축산학회지 Vol.23 No.3

Casein degradation product and soyprotein degradation product have been developed to replace commercial peptones imported for bacterial growth and fermentation works in this country. The products were tested for supporting bacterial growth and the results are summarized as follows: 1. The extraction and precipitation of soyprotein have been studied for the improvements of the nitrogen source medium, 79.9 % to 97.0 % of protein was extracted between pH 7 and pH 11.6. 2. Casein was hydrolyzed optimally at 37℃, at pH 8.6, in 24 hr. and at 0.1 g of pancreatin per gram of casein. 3. The composition of the soyprotein degradation product was as follows: total nitrogen 13.3 %, mositure 6.7 %, ash 3.3 %, total amino group (arginine equivalents) 43.4 %, and carbohydrate 150 (㎍/g). 4. The composition of the casein degradation product was as follows: Total nitrogen 11.9 %, moisture 7.1 %, ash 6.0 %, .total amino group (arginine equivalent) 37.0 %, and carbohydrate 74 (㎍/g). 5. The casein degradation product and sorprotein degradation product, did not support better growth of lactic acid bacteria and Bacillus subtilis in peptone broth media than commercially available peptone or Bacto-tryptone. 6. Addition of yeast extract, pancreatin, DNA or RNA hydrolysates to casein or soy protein degradation product-containing media improved the growth of Streptococcus lactis. However Vitamin B complex did not influence the growth of Streptococcus lactis. When pancreatin extract was added to casein degradation product, the growth of E. coli and B, subtilis was also enhanced. 7. The results indicate the growth factors lacking in our protein degradation product-containing media are mainly nucleotides.

고층 건물의 실외기실에 위치한 응축기 성능분석

최석호,이관수,김병순 대한설비공학회 2003 설비공학 논문집 Vol.15 No.7

The performance of the condenser installed in the air-conditioning plant room of a high-rise building was studied numerically. The effect of the draft direction on the performance of an air-conditioner was analyzed. The on-coil temperature of the condenser was investigated by varying the arrangement and location o( the condenser in the air-conditioning plant room. The performance of an air-conditioner was also evaluated by using COP (coefficient of performance) and CGPI (condenser group performance indicator). The condenser in an air-conditioning plant room should be arranged in such a manner that the fan of the condenser is facing the outside of the building to exhaust the hot air directly, The model by which the condenser is located at the lower-left end of an air-conditioning plant room can prevent the hot air from reentering, and allow indrafting of fresh air. When the direction of draft is to the frontal face of the building, the performance of the condenser above 30th floor is degraded.