• 대한정형외과학회지
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• 제55권2호
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• pp.103-116
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• 2020

회전근 개 파열은 인구의 고령화 및 영상 진단의 발전 등으로 인해 그 빈도가 빠르게 증가하고 있다. 최근에는 관절경적 봉합술이 일반화되어 있으며 수술 결과 역시 관혈적 봉합술과 대등한 유합률을 보이고 있다. 관절경적 수술 자체가 최소 침습적 방법이므로 수술 후 통증 감소와 조기 기능 향상이라는 부가적인 이점을 가질 수 있지만 최근에는 견관절의 관절경 수술 후 환자의 기능 회복을 더욱 향상시키기 위한 다양한 방법에 대한 관심이 높아지고 있다. 견관절 관절경 수술 후 기능 회복 치료 방법들은 수술 후 시기별로 나누어져 있으며 각 단계별로 활발히 연구되고 개선되고 있다. 그러나 각 시기별, 재활 단계별, 환자 개개인의 특성, 회전근개 파열의 정도 및 기저 질환에 따라 다양한 방법들이 많아 관절경적 회전근 개 봉합술 후 정상 견관절 상태로의 기능 회복을 위해 각 시기에 맞는 적합한 견관절의 기능 회복 방법에 대한 확립이 필요하다고 할 수 있다.

• 대한토목학회논문집
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• 제30권1A호
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• pp.27-33
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• 2010

본 연구에서는 소형 풍력발전기를 교량에 설치하여 전력생산과 아울러 내풍안정성을 개선할 수 있는 방안을 연구하였다. 이를 위하여 기존 공기역학적 진동억제 대책과 유사하게 교량에 풍력발전기를 설치하기 위한 방법과 풍력에너지 추정 방법을 제시하였다. 풍동실험 결과를 보면, 페어링처럼 소형 풍력발전기를 설치하면 와류진동을 거의 억제할 수 있는 것으로 나타났고, 이때 교축방향 최적 이격 거리는 터빈 직경의 3-4.5배인 것으로 나타났다. 그리고 풍력발전기를 설치하면 항력계수는 낮아지고 양력계수의 기울기도 음에서 양의 값으로 바뀌어 전반적인 내풍안정성이 향상되는 것으로 나타났다. 한편 풍하측의 풍력발전기는 평균풍속이 낮아 발전을 못하지만, 풍상측의 풍력발전기는 상당량의 전기에너지를 생산하는 것으로 나타났다.

• 공학교육연구
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• 제16권3호
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• pp.3-9
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• 2013

It is very difficult for students to understand "Computer System Architecture" written by M. Morris Mano only through theoretical education. This study has developed DigCom as a computer architecture practice kit to make it easier for students to understand computer operations. The practice kit operates in the same manner as the "simple computer" described in Computer System Architecture. The purpose of this study is to examine whether using DigCom is effective in improving learning outcomes. For the purpose, t-test and two-way ANOVA were used to determine if there is any difference in learning outcomes between the experimental group of students who used DigCom and the control group who took the course in a traditional setting without using DigCom. The main conclusions of the study are as follows: Students understand computer operations better when DigCom is used in class.

• 한국멀티미디어학회논문지
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• 제23권7호
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• pp.830-839
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• 2020

As a popular mathematical framework for modeling decision making, Markov decision process (MDP) has been widely used to solve problem in many engineering fields. MDP consists of a set of discrete states, a finite set of actions, and rewards received after reaching a new state by taking action from the previous state. The objective of MDP is to find an optimal policy, that is, to find the best action to be taken in each state to maximize the expected discounted reward of policy (EDR). In practice, MDP is typically unknown, so simulation-based policy improvement (SBPI), which improves a given base policy sequentially by selecting the best action in each state depending on rewards observed via simulation, can be a practical way to find the optimal policy. However, the efficiency of SBPI is still a concern since many simulation samples are required to precisely estimate EDR for each action in each state. In this paper, we propose a method to select the best action accurately in each state using a small number of simulation samples, thereby improving the efficiency of SBPI. The proposed method accumulates the simulation samples observed in the previous states, so it is possible to precisely estimate EDR even with a small number of samples in the current state. The results of comparative experiments on the existing method demonstrate that the proposed method can improve the efficiency of SBPI.

• 약학회지
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• 제59권1호
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• pp.23-28
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• 2015

Everyone has own color preference and the color preference can affect human psychology in various good or bad ways. Especially patients with chronic diseases often have depressed mood to take pills for their disease treatment. Therefore we evaluate the possibility of their color preference to pharmacotherapy in good way which increases the compliance of pharmacotherapy. We performed this study by a Questionnaire survey for total 150 agreed patients at K University hospital from Aug 7 to Sep 30, 2014. Questionnaire survey was performed to choose color of providing color kit (11 different color range kit) depend on each 16 questions which asked the patient characteristics, health condition, general color preference, color preference for medicine and expectation for drug compliance. In results, most preferred color was blue (20%), whereas disliked color was black (30%) in general life. However, most preferred color for pill was white (32%), for syrup was also white (31%) or orange (28%), and for vitamin was yellow (47%). When we asked the possibility of increasing compliance, if the current taking pill color will be changed for your preference color like a candy bar, 50.4% of respondents marked 4 or 5 of like-scale expressing positive opinion on it. In conclusion, compliance is very important to succeed the treating disease and may apply the psychologic application such as each patient color preference for drug compliance in the future.

• 한국의상디자인학회지
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• 제15권2호
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• pp.1-13
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• 2013

The study is to provide basic data on improving costume's fitting by developing physical integrated Basic Bodice Block's development for body types of adult women, which is based on setting up body-type information per truncus as fundamental of adult women's top product manufacture in being ready for Mass Customization era. Also, after review on the objectivity and accuracy of fitting information by real wear and virtual wear experiment on body types, not only 3D virtual clothing system was used as way of information provider of Clothing product, but also provided as basic data in order to use effectively on portion of clothing passion in responding to trend of Mass customization in advance. The consequence of the study is as followings. After analyzing significance differences per items on real and virtual wear evaluation, bowed type of type 1 had significance differences on waist measurement and hip circumference in back and side, which would be knowing as not integrated with costume, affecting form of human body according to virtual wear system bended on back region. Also, in side evaluation, every types except straight body type of type 3 appeared significant differences. In virtual wear evaluation, costume's expression with side body types were not similar to real wear until now except straight body types. It would be improvement things from 3D virtual wear system in advance.

• 지역사회간호학회지
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• 제21권3호
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• pp.362-373
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• 2010

Purpose: The purpose of this study is to evaluate the costs and benefits of individual home visiting health care using secondary data and literature review. Methods: The total number of subjects was 1,008,837. A specific program was classified into disease management, care of infant, child and women, or elderly care. The costs and effects of a program were identified from a societal perspective, and the effects were converted into monetary terms or benefits. The total cost was calculated in the way that medical expenses, travel costs and productivity losses were offset by the decrease in benefits and thus only the program budget was included in the total cost. Results: The total program cost was 47.6 billion won per year and the total annual benefit was estimated at 435.6 billion won. The benefits of arthritis management were the biggest among disease management programs. The net benefit was 388.0 billion won per year and the benefit/cost ratio was 9.16. Conclusion: Home visiting health care was validated to be economically effective. It made a positive contribution to improving the health status of vulnerable populations and reducing medical expenses. These results suggest that home visiting care should be extended more broadly to vulnerable populations.

• 한국의상디자인학회지
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• 제10권3호
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• pp.137-148
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• 2008

This article investigates the production process of knitwear focused on patterns and armhole forms in order to provide basic data for its value-added production. This study was based on empirical data obtained by questionnaires given to 51 respondents employed at knitwear companies. The data had been statistically analyzed with frequency analysis, one-way ANOVA, and Duncan test. The results of this study are the following: First, many knitwear companies used knitting machines, which had gauges as high as 14G. Second, most knitwears companies did not use patterns in the production process. Third, most knitwear companies produced knitwears in which armhole lines were different between the front part and back part of the body, while identical between the front and back parts of the sleeves. Fourth, people with experience in the knitwear industry had the tendency to recognize that armhole lines should be different between the front part of both the body and sleeves and their back part as well, and workers in charge of knitting recognized better than programmers and designers did. Considering the opinions of experienced workers that armhole lines differ between the front and back parts of both the body and sleeves would improve the appearance of knitwear, this study also suggests knitwear patterns of 10G and 16G by using ESMODE's basic knitwear pattern.

• International Journal of CAD/CAM
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• 제6권1호
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• pp.9-17
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• 2006

Performing inspections for Hull Condition Monitoring and Assessment as stipulated in IACS unified requirements and IMO's Condition Assessment Scheme (CAS) IMO Resolution MEPC.94(46), 2001, Condition Assessment Scheme, IMO Resolution MEPC.111(50), 2003, Amendments to regulation 13G, addition of new regulation 13H involves a huge amount of measurement data to be collected, processed, analysed and maintained. Information to be recorded consists of thickness measurements and visual assessment of coating and cracks. The amount of data and increasing requirements with respect to condition assessment demand efficient computer support. Currently, due to the lack of standardization for this kind of data, the thickness measurements are recorded manually on ship drawings or tables. In this form, handling of the measurements is tedious and error-prone and assessment is difficult. Data reporting and analysis takes a long time, leading to some repairs being performed only at the next docking of the ship or making an additional docking necessary. The recently started ED funded project CAS addresses this topic and develops-as a first step-a data model for Hull Condition Monitoring and Assessment (HCMA) based on XML-technology. The model includes simple geometry representation to facilitate a graphically supported data collection as well as an easy visualisation of the measurement results. In order to ensure compatibility with the current way of working, the content of the data model is strictly confined to the requirements of the measurement process. Appropriate data interfaces to classification software will enable rapid assessment by the classification societies, thus improving the process in terms of time and cost savings. In particular, decision-making can be done while the ship is still in the dock for maintenance.

• 경영과정보연구
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• 제23권
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• pp.157-174
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• 2007

Concerning this nation's M&A system, it is expected that standards of limitation on ownership is considerably modified and alleviated. This would allow companies to freely merge with each other, raising the efficiency of the whole national economy and ultimately benefiting all economic subjects. Another goal of business merger lies in adjusting net income or reducing tax amount. The income and the amount are to be financially reported. If merger between companies does not create any synergy effect, but just contributes to net income increase or tax reduction for the purpose of the parties' financial reporting, it might distort a rational distribution of wealth over all facets of economy. Merger whose goal is to create the most desirable synergy effect should be positively encouraged, but that whose goal lies in tax avoidance needs to be strongly restricted. Thus the purpose of this study was to find how to improve this nation's merger-related taxation system. For the purpose, this researcher investigated problems of existing tax supports to merger, which meets related taxation requirements, especially in terms of liquidation income, appraisal profit from merger, fictitious dividend and requirements for taxation. Among the problems, the study found, the biggest thing was that liquidation income or deficit carried forward, if any, is subject to be prior deducted from surplus, so the income is likely to generate. To raise the consistency of this nation's taxation on business restructuring, existing local systems in regard to merger, division, investment in kind and dividend-exclusion method need to be reconsidered following the introduction of consolidated taxation system.