• 한국전문물리치료학회지
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• 제14권1호
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• pp.55-63
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• 2007

This study was designed to examine the relationship between clinical symptoms, self-efficacy, and performance of women with osteoarthritis. It is a survey study of 60 women who were diagnosed as osteoarthritis and given medical treatments from September, 2005 to October, 2005 in hospital 'H' located in Yongin-si. For clinical symptoms, radiographs of the subjects' knees were taken and evaluated the pathology grade by the Kellgren-Lawrence grade. Pain and stiffness was measured by the measure of WOMAC (Western Ontario and McMaster Universities Osteoarthritis Index), and functional reach test was measured in order to examine balancing abilities. Self-efficacy was measured by a tool which has revised the ASES (Arthritis Self-Efficacy Scale), and performance was measured by recording the difficulty of the WOMAC measurements themselves, and the time taken for 20 m walking, going up and down 9 stairs, and 5 sit-down and stand-up repetitions. The resulting differences in the other variables according to performance and the relationship between performance with variables are the following. First, an increase in pain in women with osteoarthritis led to decreased functional ability. Second, an increase in stiffness in women with osteoarthritis led to a decrease in functional ability. Third, a decrease in balance in women with osteoarthritis led to a decrease in functional ability. Fourth, a decrease in self-efficacy in women with osteoarthritis led to a decrease in functional ability. Fifth, the variables for estimating the performance by self-report were pain and self-efficacy. The variables for estimating the performance by recording the time taken was balance and self-efficacy. As a result factors such as pain, balance and self-efficacy in women with osteoarthritis were closely related to performance. Based on the results, it seems that physical therapy programs to decrease pain and to increase the balance in women with osteoarthritis, and psychological approaches to increasing self-efficacy are needed. I hope that the results of this study will be useful data for clinical management and intervention for women with osteoarthritis.

• 컴퓨터교육학회논문지
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• 제15권6호
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• pp.33-41
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• 2012

본 논문은 온라인 평가 문항 관리 시스템 및 방법에 관한 것이다. 제안하는 시스템은 학습자 정보 데이터베이스, 영역별, 난이도별로 분류된 문항을 저장하는 문제 은행 데이터베이스로 구성된다. 문제은행 데이터베이스는 특정 학습자 또는 특정 학습에 대한 문항을 선택하는 문항 선제부, 특정 학습자 또는 특정 학습에 대한 문제지를 제작하는 문제지 제작부, 문제지를 저장하였다가 온라인 테스트를 수행할 때 출력하는 문제지 은행 데이터베이스를 포함한다. 학습자가 온라인 테스트에 제출된 문항들에 대한 문항 선택순서, 보기 선택순서, 클릭회수, 반응시간에 대한 평가 데이터를 수집하는 온라인 테스트부, 및 온라인 테스트부로부터 수집된 학습자의 온라인 테스트 평가 데이터를 분석하여 학습자의 학습수준과 학습능력, 성향을 평가하고 진단하여 보고하는 반응패턴 분석부를 포함한다. 제안하는 시스템은 보기 선택순서, 클릭회수, 반응시간을 학습자의 평가결과에 반영하여 효율적으로 학습자의 학습수준과 학습능력, 성향을 평가하고 진단할 수 있다.

• 산업경영시스템학회지
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• 제35권2호
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• pp.113-123
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• 2012

In this paper, it is examined how the amount of review time per applicant to a college admission officer system is connected with the performance of the selected students after they enter the college. About five years ago, college admission officers system has been introduced to Korea as a government policy. Thus, for most Korean college, there is not enough number of admission officers, while it takes substantial time to find out whether an applicant has potential ability or not. Thus, it is required to find out some policy alternatives to solve this discrepancy. In this paper, a simulation model is built using System Dynamics theory and simulated to understand the relation between the amount of review time and the performance of the selected students. Finally, some implications and policy suggestions are derived from the simulation results.

• 한국융합학회논문지
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• 제11권3호
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• pp.253-261
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• 2020

본 연구의 목적은 S14 등급 장애인 수영 국가대표 선수의 최근 4년간 배영 100m 경기에 대한 경기운영능력을 분석하는 것이다. 분석 변인은 출발 구간의 반응 시간, 잠영 거리 및 시간, 속도, 턴 구간의 턴 거리, 시간, 속도, 질주구간의 스트로크 횟수, 빈도, 길이, 효율성이다. 그 결과, 2015년에는 처음 50m 구간까지 서서히 질주하고, 마지막 100m 구간까지 빠르게 질주하는 경기운영을 보였으나 2016년부터 2018년에는 처음 50m 구간까지 빠르게 질주하고 마지막 100m 구간까지 처음에 비하여 약간 느리게 질주하는 경향을 보였다. 또한, 잠영시간도 해를 거듭할수록 증가하는 경향을 보였으며, 2017년에 잠영거리와 시간이 가장 크게 나타났으며, 잠영속도도 가장 빠른 것으로 나타났다. 그리고 4년간 평균 턴 거리는 약 7.51 m, 턴 시간은 4.34초, 턴 속도는 1.73 m/s로 나타났다. 마지막으로 처음 50m 구간의 스트로크 효율성은 해를 거듭할수록 향상되었으나 50-100m 구간에서는 2017년에 가장 효율적인 스트로크를 구사하였다. 이 결과는 지적장애인 수영 선수 훈련에 유용한 자료로 활용될 것이라 기대한다.

• 한국기후변화학회지
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• 제3권1호
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• pp.51-69
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• 2012

이 연구는 기후변화가 지자체의 식물, 동물, 보전구역 등 생태계에 미치는 취약성을 현재와 미래 시점에서 시 공간적으로 분석하는 방법론을 논의하고, 적응 능력을 높이기 위한 방안을 토의하였다. 생태계 부문의 취약성 평가는 침엽수를 중심으로 한 수목 생장과 분포의 취약성, 해충과 꿀벌을 중심으로 한 곤충의 취약성, 국립공원을 중심으로 한 보전구역 관리의 취약성으로 수행되었다. 구체화된 각 대용변수의 취약성을 평가하기 위하여 기후노출, 민감도, 적응능력의 대용변수 및 세부 대용변수를 선정하였다. 현재를 기준으로 하였을 때 침엽수의 생장과 분포의 취약성, 해충과 꿀벌의 취약성, 국립공원 관리의 취약성은 기후노출, 민감도, 적응능력 대용변수 가운데 기후노출에 가장 큰 영향을 받는다. 현재로부터 2100년까지 미래로 갈수록 침엽수의 생장과 분포의 취약성, 국립공원관리의 취약성에 대한 지역 간 격차는 커지고, 해충과 꿀벌의 취약성에 대한 지역 격차는 줄어드는 경향을 나타냈다.

• 품질경영학회지
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• 제20권2호
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• pp.109-117
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• 1992

An inspection task largely can be seen as a job divided up into a series of visual search and classification subtasks. In these subtasks, an Inspector must performs to compare the standard references proposed in visual environments and recalled in his memory with the visual stimuli to be inspected. It means that the judgement of similarity should be demanded on inspection tasks. Therefore, the inspector's ability for the judgement of similarity and the difference similarity between inspection materials are important factors to effect on performances in inspection tasks. In this paper, to analysis the effect of these factors on inspection time, an inspection task is designed and suggested by means of computer simulator. Especially, the skin conductance responses(SCR) of subjects are measured to evaluate the complexity of tasks due to the difference of similarity between materials. In the results of experiment, the more similar or different the difference of similarity between materials is, the shorter the inspection time is because of the reduction of task complexity. And, When the inspector's cognition for similarity between materials is consistanct, the inpsection time is improved. Concludingly, the consistency of reponses for similarity judgement becomes a measurement to present the performance levels. And the information of inspection time that due to the difference of similarity between materials must be considered in planning and scheduling inspection tasks.

• The Journal of Asian Finance, Economics and Business
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• 제7권7호
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• pp.369-378
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• 2020

The paper aims to identify the determinants that influence entrepreneurial intention among National Economics University graduates. For the sample size, we conducted a questionnaire survey of 250 full-time third-year undergraduates at the National Economics University, with convenience sampling technique. Of those 250 undergraduates, 150 were Business Administration students and 100 Economy Management students. After eliminating invalid responses due to lack of information or low quality information, 215 responses were used (93.07% of respondents) for data analysis. The results show that the factor "Perceived desirability" has the strongest impact on the intention to start a business. It is followed by the factor "Perceived feasibility" in which the "ability to search and plan for start-up" has a stronger influence on undergraduates' entrepreneurial intention than the "leadership and ability to overcome adversity". The hypothesis of a positive relationship between undergraduates' propensity to act and their intention to start a business is also supported in this study. Based on the results, we suggest some recommendations for the university and State management agencies to nurture and develop entrepreneurial intention of undergraduates, forming the young generation of potential entrepreneurs to contribute to the development of emerging countries such as Vietnam, the case study.

• 한국경영과학회:학술대회논문집
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• 한국경영과학회 2004년도 추계학술대회 및 정기총회
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• pp.619-622
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• 2004

For recent years, hacking is in the trends of making excessive traffic unnecessarily to obstruct the service by getting a system's performance down. And we can also see systems paralyzed in service ability due to the flash crowds of normal traffic to a popular website. This is an important problem certainly solved in the point of QoS guarantee for the clients. It is known that the former is DDoS(Distributed Denial of Service) attack and the latter is FE(Flash Event). These two are samely anomalous traffic because these make excessive congestion on the network or system and downgrade the system's service ability. In this paper, we propose a scheme for protecting the system against anomalous traffic and for guaranteeing the QoS. For this, a server records and maintains the information of clients accessed more than one time before when it is in normal condition. When it falls into the congestion, the records are used for filtering the spoofed IP. We send and receive the ICMP request/reply packet to know whether the IP is spoofed. And we also propose for applying the object spliting of CDN to guarantee the QoS in the initial FE situation.

• 한국병원경영학회지
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• 제22권3호
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• pp.88-104
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• 2017

The purpose of this study explains how service characteristics such as service competence, service customization, interpersonal communication and image affect service trust and affective commitments and how service trust, affective commitment play a role in affecting risk-taking and service loyalty in specialty hospital. and then confirm the mediating role of relationship quality components such as service trust and affective commitment in the above path relation. For this purpose, the research hypothesis was verified by structural equation model analysis(SEM) using SPSS 21.0 and AMOS 20.0 statistical package. The results of the study are as follows. First, interpersonal communication influenced service trust, image influenced affective commitment, service ability influenced service trust and emotional commitment, while service customization did not affect any factor. Second, service trust and affective commitment did not effect each other. Third, service trust and affective commitment were more powerful in risk-taking than the influence on service loyalty. Fourth, Risk takings affected service loyalty. Therefore, marketers of special hospitals not only medical services by providing medical service with superior service ability, but also by always strengthening interpersonal communication at the time of providing services. This will enable consumers to overcome the avoidance in the service decision process and implement a specific service marketing strategy that can continuously use the hospital service.

• 재무관리연구
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• 제16권2호
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• pp.243-261
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• 1999

본 논문은 순이익의 시계열 속성을 조사하고, 순이익의 시계열이 랜덤워크 모형과 일치하는지를 단위근 검증방식을 사용하여 조사하며, 시계열 속성에 근거하여 도출된 예측모형과 흔히 사용되어 온 랜덤워크 모형의 예측능력을 비교하여 선행연구에서 사용되고 있는 랜덤워크 모형에 실증적 타당성을 제시하는 것을 주목적으로 하고 있다. 본 연구는 한국신용평가주식회사의 데이터 베이스에 1980년부터 1996년까지 17년간 자료가 연속적으로 포함되어 있는 금융기업을 제외한 모든 기업(272개)을 표본으로 사용하고 있다. 표본기업의 순이익 시계열에 가장 적합한 과정은 랜덤워크나 AR(1) 또는 AR(2) 모형이다. 또한 본 논문은 대부분의 기업에 때해 순이익이 랜덤워크 과정을 따른다는 가설을 기각할 수 없음을 보였다. 이들 상이한 모형의 표본외 예측력(out-of-sample predictive ability)을 비교한 결과 상수항을 포함한 랜덤워크 모형이 가장 작은 평균 절대 예측오차(mean absolute forecast error)를 갖는 것으로 나타나고 있다. 본 연구는 기존의 연구가 순이익 시계열의 불안정성(nonstationarity) 문제를 무시하거나 명시적으로 다루고 있지 않은 것과는 달리 단위근 검증(unit root test)을 통해 연간 순이익이 대체로 불안정하다는 것을 보였으며, 또한 상이한 모형의 표본외 예측능력을 비교한 결과 선행연구에서 사용하여 온 랜덤워크 모형의 우월성에 대한 실증적 증거를 제공하였다는 데 의의가 있다.