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김강식,박용윤,차영호,정재혁,박홍석 ( K . S . Kim,Y . Y . Park,Y . H . Cha,J . H . Chung,H . S . Park ) 한국축산학회 1989 한국축산학회지 Vol.31 No.4
A digestion trial with four wether lambs and a feeding trial with sixteen Holstein cows of late lactation were conducted to evaluate nutritive value of soyhull and its feeding value to lactating cows. Digestibility of dry matter, crude protein and crude fiber were 78.0, 69.9 and 74.0%, respectively and total digestible nutrient content of soyhull was about 68.8%. When soyhull was included in dairy concentrates for replacement of the same amount of corn at the levels of 5.5, 11.0 and 16.5% of concentrates (fed about 7㎏ a day), milk production gradually decreased but milk fat content was increased. When milk production per unit concentrate or total feed consumed was calculated soyhull was as efficient as corn in providing energy for milk production but the energy content of soyhull was lower than that of corn, which caused slightly lower milk production in cows fed a limited amount of concentrates containing soyhull.
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인의 각종 공급원이 산란계의 무기물 대사에 미치는 영향 1 . 관용사료를 이용하였을때의 칼슘과 인의 외견상 소화율의 비교
김강식 ( K S Kim ),장윤환 ( Y H Chiang ),박용윤 ( Y Y Park ),이영상 ( Y S Lee ) 한국축산학회 1972 한국축산학회지 Vol.14 No.3
Fourteen-month old laying hens, surgically operated and held polyethylene canule for separate collection of feces and urine, were used to study the effect of three different sources of supplementary phosphorus on minerals metabolism. The three groups of birds (six per gruop) were fed rations including raw bone meal (RBM), steamed bone meal (SBM), and dicalcium phosphate (DP). The feed consumptions, calcium and phosphors intakes, and dry matter digestibilities of three treatments represented statistically similar levels. There was also no significant difference between calcium digestibility of RBM ration (39.2%) and that of SBM ration (42.8%). However, the DP ration showed higher value of calcium digestibility (67.6%) than those of the other two rations. The phosphorus digestibilities of the three rations were 39.2% 37.4%, and 65.1% orderly, which demonstrated the similar trends as in calcium digestibilities. The metabolic rates of minerals were determined, where the fecal and urinal minerals were subtracted from the intake amount of minerals. There was no significant difference between the metabolic rates of calcium in RBM (15.7%) and SBM (32.8%) diets. And there was also no significant difference between those in SBM and DP(54.5%) rations. However, there appeared highly significant difference between those in RBM and DP diets. Therefore, it was found that the SBM diet showed middle quality among three rations on the basis of calcium metabolic rate. The metabolic rates of phosphorus in tested diets were 23.1%, 32.8% and 52.8%. Both bone meals showed no significant differences, but the DP ration presented highly significant difference from both bone meals. The amounts of minerals in eggs produced during tested period were subtracted from the metabolizable minerals. The remainder was called as total balance. This observation showed the similar results as shown in metabolic rates. It was concluded that the dicalcium phosphate diet was better than both bone meals diets at the view point of Ca and P metabolism in laying hens.
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김강식(Kim Kang-Sik),박재완(Park Jae-Wan),윤종호(Yoon Jong-Ho),신우철(Shin U-Cheul) 한국태양에너지학회 2011 한국태양에너지학회 논문집 Vol.31 No.5
It has to take quantitative energy usage of high school education facilities in nations to set goals of their energy reduction. Therefore The purpose of this study is to present various analysis result of energy consumption that is a statistical analysis of high school education facilities in Korea to set the goal of energy saving. This study has enforced analysis and has provided used energy for the year 2008 and general information from 2022 high school education facilities in 16 cities in South Korea by the relevant agency. Used energy sources in high school education facilities are electricity gas for heating oil coal water and this study has changed the various used energy sources as unit 'kWh' only for comparison and analysis them.
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전력설비의 수명계산을 위한 통계적 분석기법의 활용 및 검증에 대한 연구
이온유,김강식,이홍석,조종은,김상봉,박기훈,Lee, Onyou,Kim, Kang-Sik,Lee, Hongseok,Cho, Chongeun,Kim, Sang-Bong,Park, Gi-Hun 한국전력공사 2022 KEPCO Journal on electric power and energy Vol.8 No.1
Social infrastructure facilities such as production, transportation, gas and electricity facilities may experience poor performance depending on time, load, temperature, etc. and may require maintenance, repair and management as they are used. In particular, in the case of transformers, the process of managing them for the purpose of preventing them from failing is necessary because a failure can cause enormous social damage. The management of transformers should consider both technical and economic aspects and strategic aspects at the same time. Thus, it applies the Asset Management concept, which is widely used in the financial industry as an advanced method of transformer management techniques worldwide. In this paper, the operation and power outage data were secured for the asset management of the transformer for distribution, and the asset status was analyzed. Analysis of asset status using actual operation and power outage data is essential for assessing the statistical life and failure rate of the facility. Through this paper, the status of transformer assets for arbitrary A group distribution was analyzed, and the end of life and replacement life were calculated.
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제조국, 브랜드이미지, 애국심이 이중국적제품의 평가에 미치는 영향
박진표 ( Jinpyo Park ),김강식 ( Kang-sik Kim ) 한국질서경제학회 2015 질서경제저널 Vol.18 No.4
무역자유화의 영향으로 다양한 이중국적제품이 등장하면서 소비자들의 선택에 영향을 미치는 다양한 정보단서에 대한 중요성이 증가하고 있다. 본 연구에서는 소비자가 제품을 선택할 때 이용하는 정보단서 중에서 외재적 단서인 제품 제조국이미지와 브랜드이미지, 그리고 소비자의 정서적인 변수인 소비자 애국심이 외국산 및 국내산 제품의 평가와 구매의도에 미치는 영향에 대하여 실증연구를 실행하였다. 연구결과, 제조국이미지와 브랜드이미지가 호의적일수록 제품평가와 구매의도에 긍정적인 영향을 미치는 것으로 나타났으며 애국심은 국내산 브랜드가 국내에서 생산되는 경우에만 제품평가와 구매의도에 긍정적인 영향을 미치는 것으로 나타났다. 그리고 동일한 브랜드의 제품이라도 제조국에 따라 서로 다르게 평가되고 구매의도에도 차이를 보이는 것으로 나타났다. 마지막으로 브랜드 친숙도는 제조국이 제품평가와 구매의도에 미치는 영향을 조절하는 변수로 작용할 수 있음이 밝혀졌다. 본 연구를 통하여 제조국이미지와 브랜드이미지는 이중국적 제품의 평가와 구매에 매우 중요한 역할을 하는 변수이며, 애국심과 같은 소비자의 정서적인 변수는 국내 브랜드가 국내에서 생산되었을 경우에만 유의한 것으로 밝혀져 마케팅 전략에 대한 시사점을 제공하고 있다. 1990년대 후반 경제위기를 극복하는 과정에서 우리나라 기업들이 전략적으로 활용하여 큰 성과를 거두었던 소비자의 정서적인 변수인 애국심을 활용하는 전략은 국내 브랜드에 한하여 보다 효과적으로 적용 될 수 있으며, 생산국가의 이전을 통한 제품의 생산단가 절감 및 가격경쟁력 확보전략은 기존에 구축되었던 브랜드의 명성에 부정적인 영향을 미칠 수 있으므로 신중하게 결정하여야 한다는 것이다. 아울러 연구의 한계점과 향후 다양한 연구의 방향을 제시하고 있다. This study is interested in the impact of product related variables (country-of-origin image and brand image) and of consumer psychographic variable (patriotism) on the evaluation and the purchase intention of foreign products. The empirical study was conducted with 221 young Korean consumers. The results of this research show that variables related to the product (countryof- origin image and brand image) modify the evaluation and the purchase intention of the foreign product. First, the country of origin image was found to have a positive effect on the evaluation of the product. Second, the brand image also had a positive and significant influence on the evaluation of the product. Third, consumer patriotism had a positive effect on domestic company products produced locally. It also had partial effects on products produced in specific countries. Fourth, products from the same brand showed differences in product evaluations and purchase intentions according to their country of origin. Products produced in developed countries received higher levels of positive evaluations and stronger purchase intentions. When Japanese products were produced in China and Korea, these products showed lower evaluation rating than when they were produced in Japan. On the other hand, when Korean brand products were produced in Japan, there were no significant differences in the evaluation ratings. This result means that patriotism plays a role in the evaluation of domestic brand products by the consumers. Furthermore, we could see that Korean consumers have a positive image of Korean brand products. However, all products produced in China had lower ratings than all Korean brand products produced locally. Fifth, even products produced in the same country showed different evalua- tion ratings and purchase intentions according to the brand. Regardless of the country of origin, familiar brands received more positive evaluations and higher purchase intention ratings than non-familiar ones. In the case when the brand nationality and the country of origin were different, consumers showed negative evaluations when the country of origin was economically less developed than the brand nationality. Finally, the brand familiarity was discovered to be a variable that could moderate the influence that the country of origin has on product evaluations and purchase intentions. The results of this study suggest that the delocalization decisions to manufacture a product in a low cost of production country should be associated with specific marketing actions when the perception of the image of this country is weak or unfavourable in the eyes of the consumer.
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전력설비 자산관리를 위한 Risk 기반 경제성 평가에 대한 연구
박기훈(Gihun Park),이온유(Onyou Lee),김용현(Younghyun Kim),김강식(Kangsik Kim) 대한전기학회 2021 대한전기학회 학술대회 논문집 Vol.2021 No.10
최근 전력회사는 노후화된 다수의 설비를 효율적으로 관리하기 위하여 회사의 경영전략 및 목표에 부합하는 자산관리 기술을 요구하고 있다. 이를 통해 자산의 종합적인 분석을 기반으로 투자계획을 정당화 할 수 있는 방안을 필요로 하고 있다. 현재 국내에서 자산 관리를 위한 경제성 평가 기술에 관한 연구개발 사례가 없으며 해외에서도 전문업체가 전력회사를 지원하는 형태로 도입하고 있다. 따라서 본 논문에서는 자산관리를 위한 리스크 기반 경제성 평가에 대한 방법론은 분석하여 향후 자산관리를 위한 최적 경제점 기점 분석 연구에 활용하고자 한다.
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