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한봉호 한국수산학회 1977 한국수산과학회지 Vol.10 No.4
Thermal resistance of dried bacterial spores against dry heat was determined. Spore suspensions of Bacillus subtilis var. niger ATCC 9372, Bacillus stearothermophilus Oxoid Code BR 23 and Clostridium sporogenes ATCC 19404 were located on aluminium strips, dried in electric oven under vacuum at room temperature for 10 minutes. The aluminium strips were laid in the middle of gas flow (hot air and superheated steam) with the velocity of 6 m/sec and heated at 120℃ for 180 seconds. The calculated D-values showed that there were no remarkable differences in the heat resistance of bacterial spores between R.H.≤0.012 and R.H.=0.51. Furthermore the thermal resistance of B. subtilis spores to dry heat was greater than that of B. stearothermophilus.
한봉호,조덕제,김근숙 한국수산학회 1979 한국수산과학회지 Vol.12 No.3
두부가공조건 및 순두부용 분말의 제조에 관하여 실험하여 다음과 같은 결과를 얻었다. 원료대두의 수침시간으로는 10시간이 적당하였다. 두유의 응고온도로는 CaSO₄·2H₂O, MgCl₂·6H₂O 및 CaCl₂의 경우 80℃가, GDL을 응고제로 사용할 때는 90℃가 적당하였다. 응고제의 농도로는 CaSO₄·2H₂O, MgCl₂·6H₂O및 CaCl₂의 경우 원료대두에 대하여 2%가, GDL은 3%가 적당하였다. 수율과 제품의 단백질 함랑면으로 보아 GDL의 사용이 CaS0₄·2H₂O, MgCl₂·6H₂O 및 CaCl₂의 사용보다 효과적이었다. 순두부용 분말의 제조는 두유를 분무건조함으로써 가능하였으며, 두유에 크릴즙을 혼합하여 분무건조하여 독특한 색택과 향미를 지닌 순두부용 분말의 제조가 가능하였다. 응고제를 두유와 크릴즙과 함께 혼합, 분무건조하여 순두부제조시 응고제를 달리 사용할 필요가 없는 분말의 제조가 가능하였다. A study on the processing of soy curd powder with soybean milk and krill autolysate has been carried out to prolong the self life and to improve the taste and colour of soy curd. The soy curd was manufactured by coagulation of the soybean milk prepared from soybean through a series of processes of soaking, grinding, heating at 100℃ for 5 minutes and filtration. Ten hours was reasonable as the soaking time of the soybean for the high yield of soybean milk. The use of 3% glucono-δ-lactone to the weight of the raw soybean showed the best coagulation of the soybean milk at 90℃ in relation to the yield and content of crude protein of the soy curd. The soy curd powder prepared by spray drying of soybean milk could be coagulated at 90℃ by the addition of glucono-δ-lactone after suspending in water. The powder manufactured by spray drying of the mixture of soybean milk and krill autolysate could also be coagulated under the same conditions to produce the soft soy curd. Another powder prepared by spray drying of the mixture of soybean milk, krill autolysate and glucono-δ-lactone could be coagulated by standing at room temperature after 2 minutes boiling.
생태적 특성에 따른 산림녹지의 관리방안 -부천시의 사례-
한봉호,이경재 한국조경학회 2001 韓國造景學會誌 Vol.29 No.1
The purpose of this study is to suggest the ecological management based on ecological characteristics of urban forest in Bucheon city. The actual vegetation area in the survey sites(7,426,587$m^2$) consisted of Robinuia pseudoacacia forest(61.6%; 5,574,168 $m^2$), Pinus rigida forest(6.1%), Quercus mongolica community(3.2%), Q.spp.community(2.9%), etc. According to the importance value of artificial planting forest, 58(/300$m^2$) survey plots were divided into 6 groups; 1) R. pseudoacacia forest, 2) R. pseudoacacia-Q.serrata community, 3) R. pseudoacacia-Q.mongolica community, 4) P.rigide forest, 5) P.rigida-Q.serrata community, 6) P.rigida-Q. mongolica community. As the result, the artificial planting forest was expected to the proceeded to Q. serrata community and Q.mongolica community. The ecological succesion stage in the survey sites (7,426,587$m^2$) was divided into 5 states based on actual vegetation, succession trend of artificial planting forest in Bucheon; 1) Stage of impossible succession(4.7%, 2)Stage of inducible succession(78.7%), 3) Stage of progressive succession(2.7%), 4)Sage of last succession(1.4%), 5)Stage of native plant forest(12.5%). The ecological management of urban forest was suggested as the management method for succession promotion, according to density controlling and native species planting in Bucheon. Individual numbers of R. pseudoacacia might be reduced to 6~8 individuals/300$m^2$ at canopy, 9~21 individuals/300$m^2$ at under-story by selective cutting in order to keep 63~70% of total basal area at R. pseudoacacia forest. Individual numbers of P.rigida might be reduced to 8~9 individuals/300$m^2$ at canopy, 27~30individuals/300$m^2$ at under-story by selective cutting in order to keep 68~75% of total basal area at P. rigida forest. 24 species that were selective by constancy analysis were chosen as the ecological appropriate species. Since, this studyis discussing the ares of urban forest and botanical ecology, it is suggested that a study on the relations between of environmental factors such as soil, climate, and vegetation will be performed in the future.
경쟁적 환경이 e-Biz통합의 결정요인 구성과 경영성과에 미치는 영향
한봉호,김철수,서창수 한국경영정보학회 2011 Asia Pacific Journal of Information Systems Vol.21 No.2
These days, firms are focusing on the improvement of relationships with business partners. The supply chain integrations are taking critical role in improving the relationships with business partners. In accordance with the development of the IT technology, it became possible for firms not only to integrate inner parts of the organization, but also to integrate the company with other organizations in the supply chain. Therefore, in e-Biz environments, it is imperative for firms to strengthen the core capacity through the supply chain, and to precisely determine the components of the determinants of e-Business integration which impact the firm performance. This study analyzed determinants that have impacts on e-business integration in e-business capacity perspectives in competitive environments. This study based on the premise that the resources and capacities that Grant[1991] and Hart[1995] emphasized do not directly influence the corporate performance. This study focused on the fact that corporate must create core competencies based on these capacities to establish competitive edge. Therefore, this study model analyzed to find out which e-Biz competencies are needed to integrate e-Biz according to competitive environment elements. This study designed to empirically analyze the impact of the e-Biz competencies to the e-Biz integration and to the corporate performance. Independent variables of this study-IT management, partner management, e-Biz knowledge, e-Biz establishment and proliferation, process innovation-are selected based on precedent studies on e-Biz competencies. We selected intermediate variables to verify that e-Biz competencies do not have direct impact on the corporate performance, but have impact on the e-Biz integration, which is intermediate effect. That is to verify that if the components of supply chain improve the integration level using e-Biz competencies, the overall supply chain performances will improve. Dependent variables are selected to verify that e-Biz integration has impacts on corporate performances. This study used factor analysis, path analysis, moderating effect analysis as statistical tests. First, we used exploratory factor analysis and confirmatory factor analysis to analyze reliability and validity. Because e-Biz competencies are presented variously by preceding studies, we used SPSS16.0 to verify if survey questionnaire used by theoretical backgrounds is properly composed. Second, we tested the property of structure model by AMOS. We did path analysis using AMOS16.0 to test structure that is composed of e-Biz competencies and e-Biz integration. Last, we tested moderating effects of measure factors. We analyzed 163 domestic companies to find out many significant suggestive points. First, relationship improvement capacity, e-business knowledge sharing capacity with business partners, and process innovation capacity are adopted as determinants of differentiation and competitive edges against competing firms. Second, e-business knowledge sharing capacity, and process innovation capacity are analyzed as the determinants of e-business integration in the firm which demand fluctuation in the market is high. On the other hand, among the determinants that require capturing ideas on new products, and strengthening the technological power, process innovation capacity are adopted as the determinants. These results provide us the foundation that the determinants that we have analyzed can impact the supply chain integration strategies which take into account the competitive environments.