• Journal of Information Processing Systems
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• 제17권5호
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• pp.918-932
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• 2021

Evaluation of the collaboration of the upstream and downstream enterprises in the manufacturing supply chain is important to improve their synergistic effect. From the supply chain perspective, this study establishes the evaluation model of the manufacturing enterprise collaboration on the basis of fuzzy entropy according to synergistic theory. Downstream enterprises carry out coordinated capital, business, and information flows as subsystems and research enterprises as composite systems. From the three subsystems, the collaboration evaluation index is selected as the order parameter. The compound fuzzy matter-element matrix is established by using its improved algorithm. Subordinate membership and standard deviation fuzzy matter-element matrixes are constructed. Index weight is determined using the entropy weight method. The closeness of each matter element is then calculated. Through a representative of the home appliance industry, namely, Gree Electric Appliances Inc. of Zhuhai, empirical analysis of data in 2011-2017 from the company and its upstream and downstream enterprise collaboration shows a good trend, but the coordinated development has not reached stability. Gree Electric Appliances Inc. of Zhuhai need to strengthen the synergy with upstream and downstream enterprises in terms of cash, business, and information flows to enhance competitiveness. Experimental results show that this method can provide precise suggestions for enterprises, improve the degree of collaboration, and accelerate the development and upgrading of the manufacturing industry.

• 한국축산식품학회지
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• 제42권1호
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• pp.111-127
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• 2022

This study examined how chicken breed affects consumer behavior. The breeds evaluated were a Korean native chicken (KNC) and a commercial broiler (CB). Consumer behavior was measured by evaluating sensory attributes (taste, odor, and texture) and purchase behaviors [satisfaction, purchase intention, and willingness to pay (WTP)]. The sensory evaluation was conducted using healthy Korean consumers (n=100). The chicken was cooked in baeksuk (Korean traditional chicken soup), which is a seasonal summer health food in Korea. The participants evaluated sensory attributes and purchase behaviors between blinded samples of baeksuk (CB) and unblinded samples of baeksuk (KNC). The sensory evaluation involved chicken breasts and legs. The participants considered KNC as having a more umami taste, a chewier and juicer texture, and a less metallic odor than CB. Moreover, when participants were given KNC breed information, they expressed higher satisfaction, purchase intention, and WTP. The results of this study contribute to consumer behavior literature by revealing the effects of breed information on consumer sensory perceptions and purchase behaviors. Furthermore, the findings provide evidence that branding KNC is one way to increase its demand and low market share while contributing to sustainable consumption.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제7권5호
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• pp.1213-1235
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• 2013

In this paper, we investigated the factors affecting the intention to use smartphone banking with a research model based on the Technology Acceptance Model (TAM) extended to include security risk, trust, and self-efficacy. With analysis after controlling factors such as age, gender, and previous experience of smartphone banking that may have effects, we conclude that perceived usefulness, perceived ease of use, security risk, and trust have direct effect on the intention to use smartphone banking, and self-efficacy has indirect effect on the intention to use through mediation of perceived ease of use. We performed a study to check the validity of TAM in the context of smartphone banking, and confirmed that perceived ease of use has both direct and indirect effect on the intention to use.

• 한국가정과교육학회지
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• 제15권2호
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• pp.35-54
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• 2003

The purpose of this research is to analyze the contents of Housing in 10 TechnologyㆍHome Economics textbooks for the 9th graders published in 2003. The results found that contents of Housing area in the textbooks were strengthened in both of quantity and quality aspects. The structure and number of pages of the area were varied by the textbook. Even though Housing area was likely consisted of three main parts in nine books, the information beside literal explanation was showed by various ways such as tips, activities, figures, tables, animations, etc. There were wide variation in the contents of the information, too. This research hopefully would be used to facilitate for the teachers to expose the Housing contents in the ten books and stimulate to utilize the informations in the all textbooks as a source of teaching materials.

• 한국경영과학회지
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• 제40권4호
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• pp.123-144
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• 2015

Through the event study methodology and the case study on the Company T and its subsidiaries, this study analyzes the effect of credit rating downgrade in the Korean stock market. Our empirical results cast some doubts on whether credit rating agencies made adequate credit rating adjustments on the Chaebol companies, and suggest that little information was provided to the bond market investors. This study provides some policy implications by recommending that regulators encourage credit rating agencies to provide more accurate and appropriate information to market participants.

• 한국산업정보학회논문지
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• 제20권4호
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• pp.25-37
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• 2015

The early studies indicated that the firm with monopoly power is likely to engage in X-inefficiency such as a managerial slack. The reflection of the X-inefficiency theory has led to the issue that the public sector may be more inefficient than the private sector. In Korea like other many countries the electricity gas water service which can be considered as natural monopoly have been provided mostly by the public sector. In order to provide the empirical evidence to the argument that the public sector may be more inefficient than the private sector this paper estimated the four types of Solow residual which is called the total factor productivity in the electricity gas water service industry with the associated empirical model and compared its productivity with one in the manufacturing industry. The empirical results do not support the argument that the public sector may be more inefficient or less productive than the private sector.

• Journal of Information Processing Systems
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• 제18권5호
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• pp.665-676
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• 2022

In modern logistics, the effective use of the vehicle volume and loading capacity will reduce the logistic cost. Many heuristic algorithms can solve this knapsack problem, but lots of these algorithms have a drawback, that is, they often fall into locally optimal solutions. A fusion optimization method based on simulated annealing algorithm (SA) and binary particle swarm optimization algorithm (BPSO) is proposed in the paper. We establish a logistics knapsack model of the fusion optimization algorithm. Then, a new model of express logistics simulation system is used for comparing three algorithms. The experiment verifies the effectiveness of the algorithm proposed in this paper. The experimental results show that the use of BPSO-SA algorithm can improve the utilization rate and the load rate of logistics distribution vehicles. So, the number of vehicles used for distribution and the average driving distance will be reduced. The purposes of the logistics knapsack problem optimization are achieved.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2020년도 춘계학술발표대회
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• pp.296-298
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• 2020

이 논문은 공공 의료 빅데이터를 통해 약 처방 데이터베이스시스템을 구축하고 활용하는 방안을 제시하는 데 목적이 있다. 이를 위하여 약 처방 데이터베이스시스템 이용자가 원하는 목적에 따라 검색하여 처방 성분 별 제품, 기업 정보 및 약국운영 정보를 확인하여 의사결정을 도울 수 있는 데이터베이스 시스템을 구축하였고 정보의 비대칭 문제로 약품 시장에서 불리한 입지에 놓인 수요자 측면의 권익을 향상하는 방안으로 권익 확대 및 정책 방향을 제시한다. 더 나아가 고령인구를 고려한 정책 방안에 대해서도 제안한다.

• 대한가정학회:학술대회논문집
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• 대한가정학회 1997년도 Program & Abstracts * The 7th Korea-Japan Home Economics Joint Syposium
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• pp.371-377
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• 1997

• 자원ㆍ환경경제연구
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• 제26권1호
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• pp.85-101
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• 2017

나고야의정서 또는 ABS의 목적은 생물유전자원의 이용에 따르는 대가를 실현시킴으로써 생물다양성을 유지하는데 있으나 아직까지 구체적으로 실현된 사례가 드물다. 이는 이익공유 방식을 둘러싼 논란과 생물유전자원 보유국과 이용국 또는 이용기업간의 정보 비대칭이 존재하기 때문이다. 본고에서는 주인-대리인 모형을 이용하여 정보 불확실성 하에서의 이익공유 방식을 분석하였다. 고정지출계약과 매출액 기준 로열티 방식 중 후자의 방식이 생물유전자원의 가치증대와 자원보전 측면에 우수한 인센티브 계약인 것으로 나타났다. 이는 향후 나고야의 정서 하에서 로열티 중심으로 상호협정조건 가이드라인이 마련될 필요가 있음을 시사한다.