• Communications for Statistical Applications and Methods
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• 제24권4호
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• pp.325-337
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• 2017

In this paper, we proposed a new long-term lifetime distribution with four parameters inserted in a risk competitive scenario with decreasing, increasing and unimodal hazard rate functions, namely the Weibull-Poisson long-term distribution. This new distribution arises from a scenario of competitive latent risk, in which the lifetime associated to the particular risk is not observable, and where only the minimum lifetime value among all risks is noticed in a long-term context. However, it can also be used in any other situation as long as it fits the data well. The Weibull-Poisson long-term distribution is presented as a particular case for the new exponential-Poisson long-term distribution and Weibull long-term distribution. The properties of the proposed distribution were discussed, including its probability density, survival and hazard functions and explicit algebraic formulas for its order statistics. Assuming censored data, we considered the maximum likelihood approach for parameter estimation. For different parameter settings, sample sizes, and censoring percentages various simulation studies were performed to study the mean square error of the maximum likelihood estimative, and compare the performance of the model proposed with the particular cases. The selection criteria Akaike information criterion, Bayesian information criterion, and likelihood ratio test were used for the model selection. The relevance of the approach was illustrated on two real datasets of where the new model was compared with its particular cases observing its potential and competitiveness.

• 한국지능시스템학회논문지
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• 제10권4호
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• pp.351-356
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• 2000

정보 검색은 사용자가 필요로 하는 요구에 가장 적합한 정보를 검색할수 있어야 한다. 정보 검색에서 질의어가 문서에 대하여 어느 정도의 유사성을 가지고 존재하는냐를 기준으로 문서를 순서화 할 때, 실제 순서화된 문서들을 보면 질의어와는 다른 문서들이 순서화 되는 경우를 볼 수 있다. 따라서 본 논문에서는 확장 퍼지 개념 네트워크에 근거 문서 검색을 위한 순의 결정 방법을 제안한다. 확장 퍼지 개념 네트워크에는 개념들 사이에 4가지의 퍼지 관계가 있다. 퍼지 양의 조합, 퍼지 음의 조합, 퍼지 일반화, 및 퍼지 세분화등이 있다. 확장 퍼지 개념 네트워크는 관계 행렬과 관련 행렬로 모델화 하여, 유사도 측정을 하였다.

• Toxicological Research
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• 제29권4호
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• pp.221-227
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• 2013

Embryonic stem (ES) cells have potential for use in evaluation of developmental toxicity because they are generated in large numbers and differentiate into three germ layers following formation of embryoid bodies (EBs). In earlier study, embryonic stem cell test (EST) was established for assessment of the embryotoxic potential of compounds. Using EBs indicating the onset of differentiation of mouse ES cells, many toxicologists have refined the developmental toxicity of a variety of compounds. However, due to some limitation of the EST method resulting from species-specific differences between humans and mouse, it is an incomplete approach. In this regard, we examined the effects of several developmental toxic chemicals on formation of EBs using human ES cells. Although human ES cells are fastidious in culture and differentiation, we concluded that the relevancy of our experimental method is more accurate than that of EST using mouse ES cells. These types of studies could extend our understanding of how human ES cells could be used for monitoring developmental toxicity and its relevance in relation to its differentiation progress. In addition, this concept will be used as a model system for screening for developmental toxicity of various chemicals. This article might update new information about the usage of embryonic stem cells in the context of their possible ability in the toxicological fields.

• 한국식생활문화학회지
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• 제27권3호
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• pp.274-284
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• 2012

This study presents the Analytical Hierarchy Process (AHP) as a potential decision-making method for obtaining the relative weights of alternatives through pairwise comparison in the context of hierarchical structure. The aim of this study was to elicit prior strategies for brand communication for Korean restaurants overseas. We created a questionnaire and surveyed experts at government agencies, restaurant companies, and universities from October to November 2011. By applying the pairwise comparison matrix, relevance was perceived as a more important strategy evaluation criteria than effectiveness or urgency. The highest-ranked strategy was the 'Identification of the BI and positioning of Korean restaurants' followed by 'Development of Korean food content for overseas promotion', 'Development of locally customized Korean food recipes and new Korean menus', 'Development of marketing communication strategies for Korean restaurants by countries', and 'Development of Korean restaurant differentiation strategies'. The results of this study can be used for effective Korean food globalization by enhancing the competitiveness in the world market.

• BMB Reports
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• 제54권9호
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• pp.451-457
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• 2021

Over the last decades, research has focused on the role of pleckstrin homology (PH) domain leucine-rich repeat protein phosphatases (PHLPPs) in regulating cellular signaling via PI3K/Akt inhibition. The PKB/Akt signaling imbalances are associated with a variety of illnesses, including various types of cancer, inflammatory response, insulin resistance, and diabetes, demonstrating the relevance of PHLPPs in the prevention of diseases. Furthermore, identification of novel substrates of PHLPPs unveils their role as a critical mediator in various cellular processes. Recently, researchers have explored the increasing complexity of signaling networks involving PHLPPs whereby relevant information of PHLPPs in metabolic diseases was obtained. In this review, we discuss the current knowledge of PHLPPs on the well-known substrates and metabolic regulation, especially in liver, pancreatic beta cell, adipose tissue, and skeletal muscle in relation with the stated diseases. Understanding the context-dependent functions of PHLPPs can lead to a promising treatment strategy for several kinds of metabolic diseases.

• 정보보호학회논문지
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• 제19권6호
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• pp.153-160
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• 2009

본 논문은 인적자산 보안관리에 관한 프레임워크를 개발하였고 이를 기반으로 관리지표와 보안수준 제고 요인을 도출하고 이를 실증적으로 분석한 연구이다. 인적자산 보안관리 프레임워크는 인원보증(Personnel Assurance), 개인역량(Personnel Competence), 보안 통제(Security Control) 분야로 구성되어 있으며, 관리지표는 9개 항목의 26개 지표로 도출되었다. 또한 보안수준 제고 요인은 보안인지, 규칙준수, 실수억제 항목으로 도출되었다. 연구결과, 보안관리 지표와 관리수준 제고 항목의 실증분석 결과는 대부분 부합성과 유의성을 가지고 있었으며 조직의 인적자산 보안관리 시 유용하게 적용될 것으로 기대된다.

• 패션비즈니스
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• 제26권6호
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• pp.14-31
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• 2022

Worn by both males and females the kimono is the national dress of Japan. Previous research highlights that this national dress is fading from tradition and evolves to develop with the times and fashion trends. This research aims to investigate what a kimono represents both historically and currently within Western society. The idea of the kimono being more than a national dress representing Japan, the main three themes researched will be (1) Shape (2) Narrative (3) Journey from East to West. Based on both primary and secondary sources this research indicates that there is a strong relationship between the universal increase of kimono wearers in Eastern and Western societies from history through to present day. Primary research is utilised in the form of two types of interviews. Primary outcomes bring a personal perspective to how and why kimono is worn nowadays within Europe. Secondary sources include online lectures held by kimono specialists as well as subject relevant books. From the 19th century where the Dutch were the only European country to trade with Japan, an exchange of fabrics took place which later led to the exchange of: fit, fashion and pattern (primarily within Western womenswear fashion.) This distinct garment never gets discontinued and evolves with social demands within society today.

• 한국프랜차이즈경영연구
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• 제8권1호
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• pp.5-18
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• 2017

Purpose - Although literature has established the relevance of entrepreneurial orientation(EO) in the performance of conventional firms, the constraining nature of franchise arrangement makes one wonders if the same relationship holds for companies operating under the business model. Research design, data, and methodology - Using Nigeria - a country with high potential for franchise growth - as a context, this study aims to explore the relevant entrepreneurial orientation skills exhibited by franchisees and show the extent to which these skills influence their business performance and intention to remain. 26 franchisees purposively selected from six local franchise brands in Nigeria were interviewed. Result and Conclusions - The three classic entrepreneurial orientation factors of innovativeness, proactiveness and risk-taking were found to have varying influence on franchisees' business outcomes. This study answers the calls for more in-depth understanding of the relationship between EO and firm performance generally and, franchise firm performance in particular. The value of this effort lies in the fact that it strengthens theory and updates literature on the subject. Based on the findings, specific recommendations are offered to help improve the practice of franchising in Nigeria.

• 한류연구
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• 제1권2호
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• pp.1-9
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• 2022

Due in large part to the success of 'Korean Wave' (Hallyu) entertainment commodities, there was much discussion concerning the increasing recognition of Korean culture. With the government's help, South Korean pop culture has spread all over the globe, and Korean businesses have flourished thanks to their global competitiveness. The media in the surrounding areas were quick to catch on, and they all but declared the arrival of Hallyu. Despite a tragic and brutal history of invasions, wars, and dictatorships, South Korea has the 14th largest economy and is the 15th most significant country in terms of soft power. This is largely attributable to the country's leadership in technological and cultural revolutions. The enormous economic and political gains South Korea has experienced from its Hallyu phenomenon remain impressive and even threatening to other countries competing with it for cultural dominance. This is even though media figures in the country must constantly keep in mind new ways to maintain relevance and even enhance their favorability, as pop culture trends are transient and sometimes unpredictable. As South Korean culture spread to the West, Hallyu facilitated the export of several cultural artifacts, including classical music, theater, art, literature, and dance. The Baby Shark music video and song were both created by the Korean business Pink Fong.

• 한국과학교육학회지
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• 제40권5호
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• pp.451-462
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• 2020

과학 교수학습에서 온라인 학습 환경이 확대됨에 따라 모바일 테크놀로지를 활용한 학습 활동이 많은 관심을 받고 있다. 학습자 주체성(learners' agency)의 발현을 지원해 줄 수 있는 모바일 테크놀로지는 ICT 활용 교육의 핵심적 도구가 될 수 있다. 본 연구에서는 2011년부터 2020년 4월까지 국내에서 발행된 학술지 게재논문 중 과학 교수학습에서의 모바일 활동에 관한 연구 문헌 22편을 연구 대상으로 선정하였다. 이에 대해 모바일 활동 유형을 분류하고 유형별 학습자 주체성 발현에 대한 지원 관련성을 분석하였다. 첫 번째 단계로, 국내 과학 교수학습의 모바일 활동 분석을 위해 Suárez et al. (2018)의 분류 틀을 수정·보완하여 제시하고, 이를 바탕으로 모바일 활동 유형을 분류하여 살펴보았다. 다음 단계로, 과학 교수학습의 맥락에서 학습자 주체성의 여섯 가지 측면('목표', '내용', '행동', '전략', '반성', '모니터링')의 발현과 모바일 활동 유형('내용 접근', '자료 수집', '동료 간 의사소통', '상황적 지원')의 지원 관련성을 분석하였다. 첫 번째 결과로, 과학 교수학습에서 나타난 모바일 활동의 모습은 기존의 전통적 수업에서 벗어나 학생 중심 수업으로 변화하고 있다는 것을 보여주었다. 이는 모바일 활동을 통해 학생들이 학습에 능동적으로 참여하며 학습의 주체가 되는 기회를 제공받을 수 있다는 점을 말해준다. 두 번째 결과로, 학습자 주체성 각 측면의 발현이 어떤 모바일 활동 유형에 의해 주로 지원되고 강화되는지를 확인할 수 있었으며, 일반적인 교수학습 상황에서 나타나기 어려운 학습자 주체성의 측면이 모바일 활동을 통해 지원될 수 있는 가능성을 확인하였다. 한편, 학습자 주체성의 발현과 모바일 활동의 지원을 과학 교수학습의 맥락을 고려하여 살펴보아야 할 필요성도 드러났다. 이를 종합하여 미래과학 교육에서의 모바일 테크놀로지 활용과 학습자 중심 교육으로의 변화를 위한 시사점을 살펴보았다.