• 한국식품조리과학회지
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• 제17권6호
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• pp.589-597
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• 2001

This study was conducted to develop a standardized Korean cold noodle stock recipe which can be used in food service establishments. The qualities of three kinds of stock made of beef rib only(B group), beef rib added with chicken(BC group), and beef rib added with chicken and vegetable(BCV group) were investigated by using sensory evaluation and instrumental analyses for free amino acids and nucleotides during heating (2, 3, 4, and 6 hr) at 90$\pm$ 5$\^{C}$ The highest amino acid contained in B, BCV, and BCV groups was arginine followed by alanine, glycine, and glutamic acid. B and BC groups was extracted to the best contents of amino acids by heating for 4 hours but BCV group for 3 hours. Nucleotides were extracted from B and BC group between 3 and 4 hours of heating but in BCV group between 2 and 3 hours. In sensory evaluation, BCV group obtained the highest score for overall preference. In the measurement of color difference, BCV group was the lowest in L value(lightness) but the highest in b value(yellowness).

• 디지털융복합연구
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• 제11권5호
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• pp.145-158
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• 2013

본 논문에서는 첫째, 변수들 간의 선형관계를 전제로 하지 않는 인공지능시스템의 하나인 인공신경망을 이용한 평가모형을 구축하여 상장기업의 주가를 예측하고 둘째, 회계정보를 이용하여 기업 가치를 평가하는 Ohlson모형을 이용하여 상장기업의 주가를 예측하였다. 이를 신규상장기업의 주가예측에 적용하여 어느 방법이 더 주가예측의 적정성이 높은지를 평가하였다. 이에 대한 본 연구의 실증분석 결과는 다음과 같다. 첫째, 공모가를 기준으로 한 경우 Ohlson모형에 의한 추정주가는 통계적으로 차이가 있고, 인공신경망 모형에 의한 추정주가는 통계적으로 차이가 없었다. 둘째, 상장일 종가를 기준으로 한 경우 Ohlson모형에 의한 추정주가와 인공신경망 모형에 의한 추정주가는 통계적으로 차이가 없었다. 셋째, 상장 2개월 후 종가를 기준으로 한 경우 Ohlson모형에 의한 추정주가는 통계적으로 차이가 있고, 인공신경망 모형에 의한 추정주가는 통계적으로 차이가 없었다. 이상의 결과로 볼 때 인공신경망 모형에 의한 추정주가가 Ohlson모형에 의한 추정주가보다 적정하게 평가되었다.

• 한국식품조리과학회지
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• 제15권3호
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• pp.210-215
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• 1999

본 연구는 서양조리에서 가장 보편적으로 사용되는 brown sauce의 주재료인 brown stock을 만들 때 돼지뼈의 이용가능성을 알아보기 위한 것으로서 이화학적 및 관능적 특성을 비교분석하였다. 유리아미노산중 aspartic acid의 함량은 돼지뼈로 만든 brown stock이 0.42mg% 로 돼지뼈와 소뼈로 만든 brown stock의 0.37mg%와 소뼈로 만든 brown stock의 0.18 mg% 보다 높았다. 그리고 glutamic acid, glycine, arginine, proline의 함량은 돼지뼈와 소뼈+돼지뼈로 만든 brown stock이 소뼈로 만든 것보다 많았는데, 유의수준 p<0.05에서 차이를 보였다. 세 종류 brown stock의 무기질 함량을 분석한 결과 K>Na>P의 순이 었고, 돼지뼈로 만든 brown stock의 Na, Ca, Fe, Mg 함량은 다른 시료 보다 유의수준 p<0.05에서 차이를 보이며. 많은 것으로 나타났다. 젤라틴 함량은 돼지뼈를 1:1로 함께 이용한 시료가 152.40$\pm$13.80mg%, 소뼈로 만든 시료가 136.90$\pm$8.90mg%로 돼지뼈만으로 만든 brown stock 보다 함량이 적었는데, 유의수준 p<0.05에서 차이를 보였다. 환원당 함량도 시료간에 차이가 있었으며, 돼지뼈로 만든 시료가 가장 많았으며, 다음으로 소뼈+돼지뼈, 소뼈로 만든 시료의 순이었다. 탁도는 시료간에 큰 차이를 보이지는 않았으나, 소뼈로 만든 것이 가장 투명하였고, 돼지뼈로 만든 것이 가장 불투명하였다. 점도는 소뼈로 만든 것이 2.20$\pm$0.11 mPas로 가장 낮았으며, 돼지뼈로 만든 것이 2.65$\pm$0.15mPas로 가장 높았다. Hunter's color value에서 “L”값은 소뼈+돼지뼈로 만든 것이 21.80으로 세 종류 brown stock 중 가장 높았고 돼지뼈로 만든 것이 8.59로 가장 낮았다. “a”값은 소뼈+돼지뼈로 만든 brown stock이 2.51로서 다른 두 종류의 brown stock보다 높았고 돼지뼈로 만든 것은 0.09로 낮았으나 “b”값은 소뼈+돼지뼈로 만든 brown stock이 8.35로서 “L”,“a”값과 유사하게 세 종류의 brown stock 중 가장 높았다. 뼈의 종류를 달리한 brown stock의 관능평가 결과 냄새는 소뼈로 만든 brown stock이 돼지뼈, 소뼈+돼지뼈로 만든 것 보다 높은 점수를 받았으며, 유의수준 p<0.001에서 차이를 보였다. 점도는 소뼈＞소뼈+돼지뼈>돼지뼈의 순으로 기호도가 높았으며, 입안에서의 느낌과 전체적인 맛 역시 소뼈로 만든 brown stock이 유의수준 p<0.001에서 차이를 보이며, 조금 높게 나타났다.

• 한국경영과학회:학술대회논문집
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• 대한산업공학회/한국경영과학회 2004년도 춘계공동학술대회 논문집
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• pp.636-647
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• 2004

The objective of this paper is to provide an improved reorder decision policy for general multi-echelon distribution systems utilizing the shared stock information. It has been known that traditional reorder policies sometimes show poor performance in distribution systems. Thus, in our previous research we introduced the order risk policy which utilizes the shared stock information more accurately for the 2-echelon distribution system and proved the optimality. However, since the real world supply chain is generally composed with more than 2 echelons, we extend the order risk policy for the general multi-echelon systems. Since the calculation of the exact order risk value for general multi-echelon systems is very complex, we provide two approximation methods for the real-time calculation. Through the computational experiment comparing the order risk policy with the existing policies under various conditions, we show the performance of the order risk policy and analyze the value of the shared stock information varying with the characteristics of the supply chain.

• 지식경영연구
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• 제12권3호
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• pp.59-71
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• 2011

This study intends to examine the effect of research and development (R&D) expenditure effects on firm value through patent and earing persistence. The patent is the representative intangible asset which objectively indicates a typical product of research and development activities to external parties. If a firm has acquired the patent, it receives amicable evaluation from the market compared to the firm which has not acquired patent. Empirical analysis is performed for non-banking firms (1,860 firm-years) listed on Korean Stock Exchange with December fiscal year-end over 2004-2009. Research results are as follows. First, the multiple pricing of patent acquiring firm and earing persistence increased group showed that they have higher prices than the other groups. Second, the multiple pricing of R&D expenditures of earing persistence increased group showed that they have higher prices than the other group. Third, the R&D expenditures of earing persistence increased group is receiving more friendly evaluation from the stock market than the other group.

• 경영과학
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• 제28권3호
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• pp.61-72
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• 2011

This study suggests a DEA(Data Envelopment Analysis) based model to evaluate the value of corporate stock. The model integrating PER(Price-Earning Ratio), PBR(Price-BookValue Ratio), PSR(Price-Sales Ratio) and volatility in DEA structure has an advantage of overcome the limitation of traditional financial ratio based models. In order to show the effectiveness of the suggested model. we compare the performance of portfolio composed by DEA approach with those of portfolios made by traditional approaches such as PER, PBR, and PSR in terms of stock return and volatility. Specifically, we use the data of all the enterprises listed on the S&P 500 in the U.S. in 2007 and 2009 as the sample data for the experiments. The results of the experiments show that the performance of the DEA approach is clearly better than those of other approaches. Particularly, in sharply plummeting market, the performance of the DEA approach is shown to be prominently better than those of other approaches as the DEA approach reflects investment risk as well as profitability and growth. The DEA score combining the existing investment indices may serve as a useful barometer for selecting a stable and profitable portfolio.

• Journal of Information Technology Applications and Management
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• 제15권1호
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• pp.203-224
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• 2008

The purpose of this study is to investigate the evaluation perspectives of IT business value and empirically analyze the differences of evaluation perspectives between ex ante evaluation and post implementation evaluation, and among various information system types. 4 evaluation perspectives which have been used in the previous studies and in the field of industry practices are financial, customer, internal process, and growth, which are based on the BSC model. Data of 98 information systems have been collected from 89 companies including manufacturers, banks, insurances, and stock trading companies. As results of multi-way MANOVA test, 3 out of 8 hypothesis have been accepted statistically. While the order of importance of 4 perspectives in ex ante evaluation is customer, financial, internal process, and growth, the order of post implementation evaluation appears to be much different : that is, internal process, customer, financial, and growth. These findings provide insights for both IT practitioners and researchers.

• 한국식품조리과학회지
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• 제15권5호
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• pp.483-489
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• 1999

향미채소의 첨가가 쇠고기 곰국이나 스프스톡(soup stock)의 맛성분 변화에 미치는 영향을 연구하기 위해 양지머리 고기 국물의 단백질 용출량, 유리 아미노산, 핵산 관련 물질을 측정하고 더불어 색도 측정과 관능 평가를 실시한 결과를 다음과 같이 요약할 수 있다. 1)양지머리 스프스톡의 조단백질, 유리 아미노산, 핵산 관련 물질 용출량은 대체로 가열시간에 따라 증가하였다. 2) 파(Go), 당근(Ca), 그리고 양파+당근+셀러리(A)를 첨가한 스프스톡의 조단백질 용출량은 향미채소를 첨가하지 않은 스프스톡의 용출량보다 많았다. 3) 유리 아미노산 용출량은 파 첨가 스프스톡(Go$_{5}$)에서 가장 많았으며 특히 arginine, alanine, glycine, threonine, glutamic acid가 많았다. 셀러리(C$_{5}$)와 양파 ( $O_{5}$)첨가 스프스톡 중의 유리아미노산은 향미채소 무첨가(B$_{5}$) 스프스톡보다 적었다. 4)파 첨가 5시간 가열 시료의(Go$_{5}$의 5'-IMP, inosine, hypoxanthine 농도는 다른 향미채소 첨가 스프스톡보다 높았으나 셀러리(C$_{5}$)와 양파( $O_{5}$) 첨가 스프스톡의 5'-IMP, inosine, hypoxanthine 농도는 향미채소 무첨가(B$_{5}$) 스프스톡보다 낮았다. 5) Hunter scale로 측정한 색도는 마늘 첨가(G$_{5}$) 스프스톡의 L값이 가장 낮았으며 셀러리(C$_{5}$)와 당근(Ca$_{5}$)첨가 스프스톡의 L값은 B$_{5}$값과 비슷하였다. 6) 관능 검사 결과 스프스톡의 색, 향, 맛과 전반적인 기호도에 있어서 향미채소 첨가구간의 유의적인 차이를 나타내지 않았다.

• International journal of advanced smart convergence
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• 제12권2호
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• pp.193-200
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• 2023

This paper selects 100 IT companies listed on the Shenzhen Stock Exchange from 2016 to 2020, and the public announcement in Hwajung collects ESG integrated ratings and grades for each sector and empirically verifies the relationship between ESG ratings and stock returns. Huazheng ESG level data and QIANZHAN database Using corporate financial data, a total of 500 samples were selected through correlation analysis and linear regression analysis with SPSS23 to analyze the effect of ESG on Return. As a result of the analysis, first, the impact on stock returns was found to be a significant positive (+) value for ESG integrated ratings and ratings by E (environment), S (social), and G (governance) sectors, confirming that ESG ratings have a positive mold of corporate stock returns. Currently, the world's major economies have proposed sustainable development strategies and "carbon neutral" goals. Development strategies are very consistent with ESG concepts, and companies that agree and execute ESG concepts may have higher ratings than other companies in the same industry, resulting in certain evaluation premiums. In addition, capital market performance in recent years shows that companies with ESG concepts or "carbon neutrality" concepts are generally considered to have higher growth potential and stronger anti-risk capabilities in the market. For listed companies, they should focus on ESG investment, improve ESG performance, and actively disclose related information to investors. Improving ESG performance should deliver positive information to society, enhance corporate image, increase market confidence in the future development of listed companies, and positively improve corporate value to actively increase financial, financial, trading, and other aspects of negotiation.

• International Journal of Advanced Culture Technology
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• 제11권2호
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• pp.389-396
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• 2023

This paper selects 100 IT companies listed on the Shenzhen Stock Exchange from 2016 to 2020, and the public announcement in Hwajung collects ESG integrated ratings and grades for each sector and empirically verifies the relationship between ESG ratings and stock returns. Huazheng ESG level data and QIANZHAN database Using corporate financial data, a total of 500 samples were selected through correlation analysis and linear regression analysis with SPSS23 to analyze the effect of ESG on Return. As a result of the analysis, first, the impact on stock returns was found to be a significant positive (+) value for ESG integrated ratings and ratings by E (environment), S (social), and G (governance) sectors, confirming that ESG ratings have a positive mold of corporate stock returns. Currently, the world's major economies have proposed sustainable development strategies and "carbon neutral" goals. Development strategies are very consistent with ESG concepts, and companies that agree and execute ESG concepts may have higher ratings than other companies in the same industry, resulting in certain evaluation premiums. In addition, capital market performance in recent years shows that companies with ESG concepts or "carbon neutrality" concepts are generally considered to have higher growth potential and stronger anti-risk capabilities in the market. For listed companies, they should focus on ESG investment, improve ESG performance, and actively disclose related information to investors. Improving ESG performance should deliver positive information to society, enhance corporate image, increase market confidence in the future development of listed companies, and positively improve corporate value to actively increase financial, financial, trading, and other aspects of negotiation.