• 한국산업정보학회논문지
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• 제5권4호
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• pp.81-93
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• 2000

It is important to find the competitive priority, which makes a great contribution to the action plans. The reason is that this makes it possible to provide Korean manufacturers with effective behavioral model to break through the depression after 1997'financial crisis in Korea. Focused priority has become a focus of organizations faced with the need to survive in a highly uncertain business environment characterized by rapid technological change, global competition, and demanding customers. Many believe that better linkages of priority and action plans are fundamental to surviving in the world market. However, there was little previous research dealing with the relationship between the strategic priority and action plans in the view of competitive weapon. This study presents empirical findings on differences between U.S. and Korean manufacturing approach to relationship of priority and plans. Specially, Korean manufacturers are eager for good model to overcome depression of 1997' financial crisis in Korea. Data was collected as part of the Manufacturing Futures Project completed in 1996. The results indicate that U.S. manufacturers maintain focused linkages from priority to action plans than do Korean manufacturers.

• 대한안전경영과학회지
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• 제17권4호
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• pp.161-169
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• 2015

A fire sprinkler system is very important to extinguish fire in the building. The sprinkler system initiates sprinkler discharge if the detection system identifies a developing fire and opens the pre-action valve. However, pre-action fire sprinkler systems mainly installed in the underground parking lot at the apartment complex do not properly operate at fire if the connection type of fire sprinkler systems does not properly installed and operated. This study identified the relationship between fire dispersion & damage and the connection type of water supply in the sprinkler system from many fire cases at the apartment complex in South Korea. In addition, this study also identified the water supply differences and characteristics between South Korea and foreign countries. The main purpose of this study is also to improve the water connection types in the sprinkler system that can reduce the potential failures of pre-action valve operation through electrical signal system. The study also suggests the improvement plan for water connection types in pre-action fire sprinkler system that can minimize potential failure of pre-action fire sprinkler system. The suggestions for revising the fire safe standard in South Korea includes letting the water supply pipe of sprinkler system water inlet connect to the second side of pre-action valve and the water flow device that can minimize potential failure of sprinkler system.

• 한국가정과교육학회지
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• 제32권2호
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• pp.117-139
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• 2020

이 연구의 목적은 세 가지 행동체계를 융합한 초·중·고등학교 가정교과 식생활 교육과정의 내용체계를 개발하여 가정교과에서의 융합교육 방안을 마련하는 데 목적이 있다. 이러한 목적을 이루기 위해서 문헌 고찰을 통해 세 행동체계를 융합한 초·중·고등학교 식생활 교육과정의 특징, 개발의 중점사항, 핵심역량, 목표를 도출하였고, 국내외 식생활교육 문헌, 국내외 가정과교육과정과 교과서를 고찰하여 항구적 문제와 하위 실천적 문제를 설정하고, 내용 요소를 선정하였다. 개발된 교육과정의 내용체계가 타당한지 전문가 타당도 검사를 하여 수정·보완하였고, 세 행동체계를 융합한 중학교 가정교과 식생활 교육과정의 성취기준을 개발하였다. 세 행동체계를 융합한 초·중·고 가정교과 식생활 교육과정의 내용 체계는 실천적 문제를 중심으로 되어있으며, 항구적 문제는 '건강한 식생활을 실천하기 위해 무엇을 해야 하는가?'이다. 이 교육과정의 영역은 5가지로 '건강과 식생활', '식단계획', '식품 구매와 관리', '조리', '식사'이며, 이 영역이 '개인과 가족', '사회'로 교육과정의 범위가 반복적으로 확장되어 있다. 이에 따라 5개 영역의 실천적 문제는 초·중·고등학교 급별, 두 차원(개인과 가족, 사회)으로 10개씩의 실천적 문제로 구성되어 있으며, 계열화의 원리가 적용되어 실천적 문제와 내용 요소가 나선형적 계열화가 되어있다. 이 교육과정의 내용 체계를 우리나라 2015 초등학교 실과와 중·고등학교 기술·가정과, 가정과학 교육과정의 식생활 영역 성취기준 및 학습 요소와 비교한 결과, 2015 개정 교육과정의 내용을 모두 포함하면서 더 추가된 내용이 있었다.

• 한국지능시스템학회논문지
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• 제18권3호
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• pp.291-296
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• 2008

본 논문에서는 군집로봇시스템에서 목표물 추적을 위하여 SVM을 이용한 12각형 기반의 Q-learning 알고리즘을 제안한다. 제안한 알고리즘의 유효성을 보이기 위해 본 논문에서는 여러 대의 로봇과 장애물 그리고 하나의 목표물로 정하고, 각각의 로봇이 숨겨진 목표물을 찾아내는 실험을 가정하여 무작위, DBAM과 AMAB의 융합 모델, 마지막으로는 본 논문에서 제안한 SVM과 12각형 기반의 Q-learning 알고리즘을 이용하여 실험을 수행하고, 이 3가지 방법을 비교하여 본 논문의 유효성을 검증하였다.

• Mycobiology
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• 제47권2호
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• pp.242-249
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• 2019

Betaine derivatives are considered major ingredients of shampoos and are commonly used as antistatic and viscosity-increasing agents. Several studies have also suggested that betaine derivatives can be used as antimicrobial agents. However, the antifungal activity and mechanism of action of betaine derivatives have not yet been fully understood. In this study, we investigated the antifungal activity of six betaine derivatives against Malassezia restricta, which is the most frequently isolated fungus from the human skin and is implicated in the development of dandruff. We found that, among the six betaine derivatives, lauryl betaine showed the most potent antifungal activity. The mechanism of action of lauryl betaine was studied mainly using another phylogenetically close model fungal organism, Cryptococcus neoformans, because of a lack of available genetic manipulation and functional genomics tools for M. restricta. Our genome-wide reverse genetic screening method using the C. neoformans gene deletion mutant library showed that the mutants with mutations in genes for cell membrane synthesis and integrity, particularly ergosterol synthesis, are highly sensitive to lauryl betaine. Furthermore, transcriptome changes in both C. neoformans and M. restricta cells grown in the presence of lauryl betaine were analyzed and the results indicated that the compound mainly affected cell membrane synthesis, particularly ergosterol synthesis. Overall, our data demonstrated that lauryl betaine influences ergosterol synthesis in C. neoformans and that the compound exerts a similar mechanism of action on M. restricta.

• 한국가정과교육학회지
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• 제35권3호
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• pp.67-96
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• 2023

본 연구는 가정교과에서 중·고등학생을 위한 세 행동체계의 실태를 파악할 수 있는 척도를 개발하고 타당화하는 것을 목적으로 하였다. 이를 위해서 세 행동체계와 관련된 국내외 문헌을 고찰하여 예비문항으로 기술적 행동, 의사소통적 행동, 해방적 행동을 측정할 수 있도록 각 행동체계별로 35개 문항, 총 105개 문항을 5점 리커트 척도로 개발하였다. 개발된 예비문항을 가정교육학 전문가에게 내용타당도를 검토받아 수정·보완하는 절차를 두 차례 실행하였다. 개발된 예비문항 70개를 중·고등학생을 대상으로 예비조사를 실시하여 166부를 회수하였다. 척도의 타당성을 검정하기 위해 회수된 설문지를 탐색적 요인 분석한 결과 7요인 38개 문항이 적합한 것으로 나타났다. 탐색적 요인분석 결과를 바탕으로 본 조사 문항을 구성한 후 중·고등학생을 대상으로 본조사를 실시하여 548부를 회수하여 확인적 요인분석을 하였다. 확인적 요인분석을 통해 기초생활능력 5문항, 자기관리능력 4문항, 정보처리능력 4문항, 의사소통·대인관계능력 12문항, 비판적사고력 3문항, 의사결정능력 7문항, 임파워먼트 3문항 총 38문항이 최종 선정되었다. 이 모형의 적합도는 χ²=1846.741(p<.001), CFI=0.865, TLI=0.853, RMSEA=0.058로 나타났고, 각 문항별 표준화 계수는 0.5 이상으로 나타났으므로 가정교과에서 중·고등학생의 세 행동체계의 실태를 측정하는데 적합한 측정 도구로 볼 수 있다. 세 행동체계 척도는 자아정체감 척도의 하위요인인 자기수용성, 미래계획성, 친밀성, 독특성과 사회참여척도와 유의한 상관을 갖는 것으로 나타나 공인타당도를 갖는 것으로 확인되었다.

• Journal of Information Processing Systems
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• 제19권4호
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• pp.554-562
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• 2023

This research offers a sports video action recognition approach based on the fish swarm algorithm in light of the low accuracy of existing sports video action recognition methods. A modified fish swarm algorithm is proposed to construct invariant features and decrease the dimension of features. Based on this algorithm, local features and global features can be classified. The experimental findings on the typical sports action data set demonstrate that the key details of sports action can be successfully retained by the dimensionality-reduced fusion invariant characteristics. According to this research, the average recognition time of the proposed method for walking, running, squatting, sitting, and bending is less than 326 seconds, and the average recognition rate is higher than 94%. This proves that this method can significantly improve the performance and efficiency of online sports video motion recognition.

• 한국지능시스템학회:학술대회논문집
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• 한국퍼지및지능시스템학회 1993년도 Fifth International Fuzzy Systems Association World Congress 93
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• pp.761-764
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• 1993

In this paper we consider techniques for reducing the generated number of rules in learning fuzzy controllers of the state-space action-reinforcement type that can be simply implemented and that behave well in the presence of process noise. Fewer rules lead to better performance, less contradiction in controller action estimation, smaller required execution-time and make it easier for a human to comprehend the generated rules and possibly intervene.

• 대한전자공학회논문지
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• 제23권4호
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• pp.445-449
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• 1986

This paper presents a direct adaptive control scheme for nonminimum phase systems of which controller parameters are estimated from the least-squares algorithm, and some additional auxiliadry parameters are obtianed from the proposed polynomial identity equation. Integral action is incorporated into the adaptive controller to eliminate the steady-state error, and to satisfy a condition of the unique solution for the polynomial identity as well.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제17권7호
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• pp.1894-1915
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• 2023

Software-Defined Networking (SDN) offers several advantages in dynamic routing, flexible programmable control and custom application-driven network management. However, the programmability of the data plane in traditional SDN is limited. A network operator cannot change the ability of the data plane and perform complex packet processing on the data plane, which limits the flexibility and extendibility of SDN. In the paper, AP-SDN (Action Program enabled Software-Defined Networking) architecture is proposed, which extends the action set of SDN data plane. In the proposed architecture, a modified Open vSwitch is utilized in the data plane allowing the execution of action programs at runtime, thus enabling complex packet processing. An example action program is also implemented which transparently encrypts traffic for terminals. At last, a prototype system of AP-SDN is developed and experiments show its effectiveness and performance.