• 비만대사연구학술지
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• 제3권1호
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• pp.9-13
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• 2024

The prevalence of obesity has been increasing worldwide. Several dietary treatments have been suggested to control weight, and recent guidelines recommend individualizing the composition of macronutrients. Carbohydrates are the most important nutrients in meals, and carbohydrate restriction is a dietary strategy that promotes weight loss. A low-carbohydrate diet is effective for short-term weight loss and can help improve glycated hemoglobin, systolic blood pressure, diastolic blood pressure, and triglyceride levels; however, the long-term effects and safety of this diet remains doubtful. In the short term, there is a risk of gastrointestinal symptoms such as vomiting, diarrhea, constipation, and gastroesophageal reflux, and type 1 diabetes patients are at risk of severe hypoglycemia, while in the long term, it can lead to malnutrition and decreased exercise capacity. Thus, rather than limiting the intake of carbohydrates, it is important to limit the intake of refined grains, sugar, honey, syrup, and sweetened beverages while maintaining the planned carbohydrate intake rate and improving meal quality.

• 한국사회복지학
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• 제66권3호
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• pp.75-99
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• 2014

본 연구는 요양보호사가 인식한 상사의 변혁적 리더십과 직무만족 및 조직몰입으로 대표되는 조직효과성과의 관계에서 임파워먼트가 미치는 영향을 살펴보기 위하여 실시되었다. 이를 위해 서울, 경인지역 장기요양기관에서 근무하는 요양보호사를 대상으로 서베이를 실시하여 283명의 응답을 최종 분석에 활용하였다. 분석결과 첫째, 장기요양기관의 변혁적 리더십은 직무만족과 조직몰입에 유의미한 영향을 미치고 있었다. 둘째, 요양보호사의 임파워먼트는 직무만족과 조직몰입에 유의미한 영향을 주는것으로 나타났다. 셋째, 장기요양기관의 변혁적 리더십과 요양보호사의 직무만족 및 조직몰입간의 관계에서 임파워먼트가 매개역할을 하는 것으로 나타났다. 이러한 결과를 토대로 장기요양기관 관리자의 변혁적 리더십 향상을 위한 실천방안과 요양보호사들의 임파워먼트 향상을 위한 프로그램 개발 및 제도적 장치 마련에 대한 시사점을 제시하였다.

• 한국지반공학회논문집
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• 제27권1호
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• pp.65-76
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• 2011

본 논문에서는 보강토 구조물의 장기거동에 관한 수치해석 내용을 다루었다. 본 연구는 사용연한동안 지속하중을 받는 보강토 구조물의 장기 변형 관련 메카니즘을 고찰하는데 주 목적을 두었다. 연구를 위해 먼저 Singh-Mitchell 크리프 모델과 멱함수(Power law) 크리프 모델을 이용하여 각각 뒤채움흙과 보강재의 크리프 변형을 모델링하는 방안을 구축하였으며 이를 토대로 뒤채움흙과 토목섬유 보강재의 크리프 특성에 대한 매개변수 연구를 수행하였다. 해석결과 외부하중을 받는 보강토 구조물이 세립분이 많이 포함되어 있는 흙으로 뒤채움이 될 경우 뒤채움흙과 토목섬유 보강재로부터 발생하는 크리프 효과로 인해 상당한 크기의 장기 변형이 발생할 수 있는 것으로 나타났다. 본 논문에서는 외부하중을 받는 보강토 구조물에 있어서 크리프 효과가 구조물의 사용성에 미치는 영향을 집중적으로 고찰하였다.

• Agribusiness and Information Management
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• 제10권1호
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• pp.26-34
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• 2018

Development, availability and users' participation in the information service of agricultural food sector is slower than that of other sectors in Korea. This phenomenon comes from the lack of development strategies and comparative analyses with other sectors, as well as the agricultural food industry's own characteristics which is developed based on the offline market. In this research, we will discuss about how to improve the public information service of agricultural food sector based on the example of establishing service improvement strategy by the most representative Okdab. In this research, we have drawn the following implications for development strategy of Okdab service based on three core keywords derived from benchmarking KOSIS. Three core subjects for upgrading public information service are 'analysis information with expertise and differentiation,' 'user cooperation-oriented platform,' and 'intuitive nd effective UX,' and to strength B.I. as an integrated information service of agricultural food sector, we need to identify the users' satisfaction and needs for the existing service, establish an optimized operating strategy on a short-term, mid-term and long term bases, and implement them in a positive way. Based on this positive action, it can become a trustworthy information service for the users, and we can expect the improvement of the users' recognition for its consistent usability and efficiency.

• 전기학회논문지
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• 제56권6호
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• pp.1017-1022
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• 2007

In this paper, we try to analyze the likelihood of exercising the power of market dominance by certain generators in future power industry of Korea. Firstly, we estimated installed generation capacity and sales volume of electricity in Korea, based on 'The 3rd Long Term Power Plan' which was announced in December 2006. Secondly, we calculated HHI, an index showing the degree of concentration of an industry, and RSI, an index showing how adequate the supply of goods or services of an industry is, using Fast-Forward. Thirdly, assuming a major generator employs the strategy of withholding a part of its available capacity at a peak time, we simulated hypothetical movement of SMP over a certain period of time, which is compared with that obtained without assuming such strategy to generate Lerner Index. an index showing the degree of market power of a monopoly. Regulators, home and abroad, have not given much interest in analyzing the effect of market dominance that is likely to be exercised by certain players in the future. That said, this paper provides insight into developing methodologies of analyzing and mitigating such effect by proposing the above indices to gauge it. In addition, this paper also shows the potential impact of employing capacity withholding strategy on the financial account of a dominant generator.

• Nuclear Engineering and Technology
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• 제55권3호
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• pp.839-849
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• 2023

The development of automation technology to reduce human error by minimizing human intervention is accelerating with artificial intelligence and big data processing technology, even in the nuclear field. Among nuclear power plant operation modes, the startup and shutdown operations are still performed manually and thus have the potential for human error. As part of the development of an autonomous operation system for startup operation, this paper proposes an action coordinating strategy to obtain the optimal actions. The lower level of the system consists of operating blocks that are created by analyzing the operation tasks to achieve local goals through soft actor-critic algorithms. However, when multiple agents try to perform conflicting actions, a method is needed to coordinate them, and for this, an action coordination strategy was developed in this work as the upper level of the system. Three quantification methods were compared and evaluated based on the future plant state predicted by plant parameter prediction models using long short-term memory networks. Results confirmed that the optimal action to satisfy the limiting conditions for operation can be selected by coordinating the action sets. It is expected that this methodology can be generalized through future research.

• 한국산학기술학회논문지
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• 제20권1호
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• pp.52-63
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• 2019

전략분야의 연구들은 일정 수준 이상 성공한 대기업을 대상으로 실증분석을 실시함으로써 제대로 된 성과함의를 도출하지 못할 여지가 있다. 이러한 측면에서 미래 시점에 성공할 기업과 실패할 기업이 현재 시점에 혼재되어 있는 벤처기업을 대상으로 논의의 타당성을 검증함으로써 보다 변별력 있는 연구결과를 획득할 가능성은 높아질 수 있다. 본 연구는 경영전략과 최고경영자의 특성, 그리고 이들 간의 상호작용효과가 기업성과에 미치는 영향에 대한 가설을 제시하고, 387개 벤처기업으로부터 회수된 설문에 근거하여 실증분석을 실시함으로써 전략분야의 논의들이 어떤 타당성을 가지는지를 벤처기업을 대상으로 검증하고자 하였다. 분석결과에 따르면 경영전략 중에서는 기술혁신 차별화 전략이, 최고경영자의 특성 중에서는 혁신성과 장기지향성이 기업성과에 유의한 영향을 미치는 것으로 나타났다. 또한 경영전략과 최고경영자의 특성 간의 상호작용효과의 경우 원가우위 전략과 마케팅 차별화 전략은 위험감수성향, 혁신성, 장기지향성 모두에 대해 유의한 결합효과를 보여주었다. 반면에 기술혁신 차별화 전략은 최고경영자의 특성 중 어느 것과도 유의한 결합효과를 보여주지 않았다. 이를 통해 원가우위 전략과 마케팅 차별화 전략은 기업성과에 단독으로 영향을 미치지 않고 최고경영자의 특성과 결합될 때 영향을 미치는 반면. 기술혁신 차별화 전략은 기업성과에 단독으로 영향을 미치지만 최고경영자의 특성과는 결합효과가 존재하지 않는다는 결론에 도달하였다. 본 연구는 벤처기업의 성과제고를 위해서는 경영전략과 최고경영자의 특성 간에 적합성을 추구하는 것이 중요하다는 사실을 실증분석을 통해 확인했다는 점에서 의의를 가진다.

• 한국환경과학회지
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• 제18권8호
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• pp.877-883
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• 2009

This study has analyzed the scale, location, resource potential and feasibility of offshore wind farm scientifically and systematically based on the national wind map and GIS. For long-term wind power development, this study pursues siting strategy building, selection of target area and deciding development priority as well as the presenting a basis for assessment that are necessary for policy decision making by making theme layers under GIS environment. According to the analysis after organizing technological development by stages, even if only the most suitable sites are developed among the area of offshore wind farm candidates that can be developed under the current technological standard, it has been evaluated as being able to develop about 3 times of the wind power dissemination target until 2012. It is expected that about 5% of territorial water area can be developed in a short-term future while the southern offshore area possessing relatively favorable wind resource than the western offshore has been identified as the most feasible site. While about 23% of territorial water area has been classified as potential area for offshore wind farm development in a long-term future, even Jeju Island and offshore of Ulsan possessing excellent wind resource have been analyzed as feasible sites. The feasibility assessment of offshore wind lam development established by this study is expected to assist national strategy building for accomplishing the wind power dissemination target.

• 비만대사연구학술지
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• 제1권1호
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• pp.26-32
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• 2022

Dietary therapy is one of the most important treatments for obesity. In general, it is difficult to maintain the recommended diet for weight control for a long time; therefore, it is difficult to achieve weight loss or maintain weight. Intermittent fasting has recently become one of the most popular diets for weight loss. Intermittent fasting is a strategy of repeating intermittent energy restriction and eating, unlike conventional diets of continuous calorie restriction. Studies on intermittent fasting have shown positive results not only in terms of weight loss but also improvement in metabolic indicators, such as glucose control and reduction of blood pressure. Therefore, it is important to maintain a long-term dietary strategy to prevent weight loss in obese individuals. The effect on weight loss was similar to that of an existing continuous energy-restricted diet. However, long term studies and safety data are still lacking, and large-scale studies with various populations are needed. If more evidence is secured for various individuals, it can be expected that intermittent fasting, including time-restricted eating, will be applied clinically in the future.

• 경영과학
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• 제29권2호
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• pp.53-64
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• 2012

This paper is about the investment strategy in stocks on Fundamental analysis. Financial data of stocks from January 2. 2001 through October 30. 2009 were utilized in order to suggest the investment strategies. Fundamental analysis was used in stocks-related strategy. The portfolios are composed of 3 criteria such as the buying criteria score, exchange cycle and selling conditions. The buying criteria score is determined assigned to each stock index according to the satisfaction condition of 15 parameters selected considering the grue's criteria. The stock buying alternatives has two options with buying stocks over 13 points and over 14 points of buying criteria score. The seven exchange cycles and three selling methods are considered. So total number of portfolios is 42($2{\times}7{\times}3=42$). The simulation has been executed about each 42 portfolios and we figured out with the simulation result that 83.33% of 35 portfolios are more profitable than average stock market profit(203.43%). The outcome of this research is summarized in two parts. First, it's the exchange strategy of portfolio. The result shows that value-oriented investment (long-term investment) strategy yields much higher than short-term investment strategies of stocks. Second, it's about the exchange cycle forming the portfolios. The result shows that the rate of return for the portfolio is the best when exchange cycle is 18 months.