• 한국전문물리치료학회지
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• 제12권4호
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• pp.1-6
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• 2005

Community-based group exercise programs for people with chronic stroke are relatively uncommon in Korea. In addition, it is currently not known whether a community-based group exercise program is effective or not. The purpose of this study was to evaluate an 8 week community-based functional exercise program for its effects on balance performance and occupational performance in persons with chronic stroke. Twenty-five community-dwelling individuals with stroke participated in this program. Outcome of the program was assessed by the Berg Balance Scale and the Canadian Occupational Performance Measure (COPM). The functional exercise program lasted for eight weeks, with a 1-hour program twice per week and it consisted of mobility, stability, balance, functional strength, and gait training. The subjects were trained by one physical therapist but were under one-to-one supervision from students. The data of sixteen individuals who scored more than 24 on the Mini-Mental State Examination (MMSE) were analyzed. There was a significant effect both in terms of the COPM Performance Score & the Satisfaction Score (p=.002) and with the Berg Balance Score (p=.001). It was found that a short-term community-based exercise program could improve both performance of activities and balance. Further, all subjects reported that they were satisfied with this program.

• 한국콘텐츠학회논문지
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• 제13권2호
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• pp.451-459
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• 2013

본 연구의 목적은 근무시간 중 스마트폰의 인터넷 기반 일탈행동에 영향을 미치는 요인들과 일탈행동이 성과에 미치는 영향에 대하여 조사하는 것이다. 본 연구는 이를 위하여 스마트폰 인터넷을 이용한 일탈행동, 성과, 그리고 일탈행동 영향요인들인 의향, 습관 등으로 구성된 이론모형을 개발하였다. 제안된 이론모형은 업무영역에서 스마트폰을 사용하는 직장인들을 대상으로 설문조사를 실시하여 분석하였다. 분석결과 첫째, 스마트폰 인터넷을 이용한 일탈행동은 성과에 부정적인 영향을 미치는 것으로 밝혀졌다. 둘째, 스마트폰 인터넷을 이용한 일탈행동 의향 및 습관은 그 행동을 예측할 수 있는 요인들로 확인되었다. 본 연구의 결과는 직장에서의 스마트폰 인터넷을 이용한 일탈행동에 대한 분석틀을 제시하였다는 점에서 의의가 있다.

• 인터넷정보학회논문지
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• 제5권6호
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• pp.1-10
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• 2004

A web robot is a software that has abilities of tracking and collecting web documents on the Internet(l), The performance scalability of recent web robots reached the limit CIS the number of web documents on the internet has increased sharply as the rapid growth of the Internet continues, Accordingly, it is strongly demanded to study on the performance scalability in searching and collecting documents on the web. 'Design of web robot based on Multi-Agent to speed up documents collection ' rather than 'Sequentially executing Web Robot based on the existing Fork-Join method' and the results of analysis on its performance scalability is presented in the thesis, For collection speedup, a Multi-Agent based web robot performs the independent process for inactive URL ('Dead-links' URL), which is caused by overloaded web documents, temporary network or web-server disturbance, after dividing them into each agent. The agents consist of four component; Loader, Extractor, Active URL Scanner and inactive URL Scanner. The thesis models a Multi-Agent based web robot based on 'Amdahl's Law' to speed up documents collection, introduces a numerical formula for collection speedup, and verifies its performance improvement by comparing data from the formula with data from experiments based on the formula. Moreover, 'Dynamic URL Partition algorithm' is introduced and realized to minimize the workload of the web server by maximizing a interval of the web server which can be a collection target.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제13권6호
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• pp.2824-2837
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• 2019

Container technologies are widely used in infrastructures to deploy and manage applications in cloud computing environment. As containers are light-weight software, the cluster of cloud applications can easily scale up or down to provide Internet-based services. Container-based applications can well deal with fluctuate workloads by dynamically adjusting physical resources. Current works of scheduling applications often construct applications' performance models with collected historical training data, but these works with static models cannot self-adjust physical resources to meet the dynamic requirements of cloud computing. Thus, we propose a self-adaptive automatic container scheduling framework AutoScale for cloud applications, which uses a feedback-based approach to adjust physical resources by extending, contracting and migrating containers. First, a queue-based performance model for cloud applications is proposed to correlate performance and workloads. Second, a fuzzy Kalman filter is used to adjust the performance model's parameters to accurately predict applications' response time. Third, extension, contraction and migration strategies based on predicted response time are designed to schedule containers at runtime. Furthermore, we have implemented a framework AutoScale with container scheduling strategies. By comparing with current approaches in an experiment environment deployed with typical applications, we observe that AutoScale has advantages in predicting response time, and scheduling containers to guarantee that response time keeps stable in fluctuant workloads.

• 대한작업치료학회지
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• 제26권4호
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• pp.27-41
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• 2018

목적 : 본 연구는 신경발달 장애 아동들에게 작업기반(occupation-based) 중재를 그룹 프로그램으로 적용하여 작업 수행의 질, 수행도 및 만족도, 프로그램에 대한 만족도의 효과를 알아보고자 하였다. 연구방법 : 신경발달 장애 아동 10명을 대상으로, ADOC-S(Aid for Decision making in Occupation Choice-School) 및 COPM(Canadian Occupational Performance Measure)을 사용하여, 모든 클라이언트에게 의미 있고 공통된 작업 목표를 수립 하였다. '지하철 이용' 작업수행 분석한 후에 PQRS(Performance Quality Rating Scale)를 사용하여 작업수행의 질 변화를 조사하였다. 작업기반 중재는 가장 자연스럽고 실제생활과 비슷한 상황에서 의미 있는 작업을 직접 수행하며 진행되었다. 실험은 사전 평가 1회기, 중재기는 주 1회, 회기당 100분, 8주간, 총 8회기 진행되었고 사후 평가 1회기 실시되었다. 결과 : 작업수행의 질인 PQRS에서는 중재 전에 비해 중재 후 38.10의 증가를 보였다. 유지, 보상 및 적응접근을 적용하여 초기 회기(1~4회기)에 큰 증가율이 나타났다. COPM의 수행도는 중재 전에 비해 5.80, 만족도는 7.00의 증가가 나타났다. 또한 보호자 인터뷰를 통한 프로그램 만족도에서 높은 점수가 나타났다. 결론 : 작업기반 중재는 신경발달장애 아동의 작업수행을 향상시킬 수 있는 중재방법이며, 수행도 및 만족도, 프로그램 만족도에 긍정적인 결과를 도출할 수 있었다.

• 방재기술
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• 통권27호
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• pp.40-45
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• 1999

• 건축사
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• 통권478호
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• pp.76-81
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• 2009

• 한국정보시스템학회지:정보시스템연구
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• 제26권4호
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• pp.1-15
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• 2017

Purpose Through the provision of real time performance information about who is contributing and who is not in Electronic Brainstorming, prior studies evidenced a significant performance gain. However, it has been observed that the quantity-based performance feedback alone does not have enough restrictiveness to guide the performance behavior throughout the idea generation session. We included the notion of goal setting into the process performance feedback mechanism in an effort to regulate performance behavior and to better understand why individuals in Electronic Brainstorming are not obtaining enough stimulation benefits in the group interaction process. Design/methodology/approach We had developed real-time visual process performance feedback and modified to include goal setting. This mechanism visually displays individuals' performances two-dimensionally (quality for each idea vertically and quantity of ideas horizontally along with their goals). As individuals' contributions accumulate, the mechanism reveals performance histories by connecting the sequence of ideas in a time-series format, telling stories of individuals' performances. Then, we compared the performance outcome from this study with the outcomes from two prior studies (i.e., Jung et al., 2010 and Jung, 2014). Findings The results showed that the inclusion of goal setting into the process performance feedback solved the issue in the previous study. That was the lower than expected magnitude of performance enhancement of process performance feedback when compared to that of quantity-based feedback. It appears that goals as a motivational technique provide standards for systematic self-evaluation, serving as a cue to regulate performance behavior by strengthening the linkage between effort and performance. Thus, goals seem to set up a self-fulfilling prophecy, preconditioning better performance. However, the outcome still showed that its performance magnitude is unsatisfactory because the outcome of this study turned out to be close to the outcome of just quantity-based performance feedback in Jung et al.'s (2010) study.

• 한국정보통신학회논문지
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• 제17권9호
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• pp.2105-2112
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• 2013

본 논문에서는 대용량 전자메일 서버의 성능 데이터를 수집해 그 분석 결과를 웹 기반으로 관리자에게 제공하는 모니터링 시스템을 구현하였다. 이를 위해 전자메일 서버의 성능 데이터 수집 항목을 도출하고, 각 항목별 측정 임계치를 설정하여 전자메일 서버의 성능을 객관적인 수치로 표현될 수 있도록 하였다. 전자메일 서버의 성능 데이터 수집은 SCOM 2007 서버 모니터링 도구를 이용하였으며, 성능 분석 파라미터 설정은 마이크로소프트사에서 제공하는 Exchange 서버 관리 팩과 SCOM 2007에서 제공하는 모니터링 규칙을 이용하였다. ASP.NET 프레임워크 기반의 C# 프로그래밍을 통해 웹 기반의 성능 모니터링 프로그램을 개발했으며, 성능 분석 결과는 관리자에게 웹 기반의 성능보고서, 장애 보고서 및 가용성 보고서 형태로 제공된다. 장애 요소를 사전에 효율적으로 감지할 수 있어 본 시스템 적용 전후 비교시 60% 이상 장애 건수를 줄일 수 있었으며, 장애 발생시에도 복구에 소요되는 시간을 획기적으로 단축할 수 있었다.

• 한국멀티미디어학회논문지
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• 제18권9호
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• pp.1058-1067
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• 2015

Dweller's safety is one of the most important factors for the evaluation of building performance. The process of conventional safety design which is normally performed by the codes and designer's experiences is not enough to check the whole possibilities of unexpected accidents in the built environment. It means that the dwellers might be always exposed by the dangerous situation which should have been removed in the architectural design process. In order to solve this problem, this study intends to introduce a rule-based performance evaluation technology based on BIM(Building Information Modeling). The proposed technology focuses on the real time evaluation of dweller's safety in the ordinary life in the designed building alternatives and uses a commercial BIM tool as a design and evaluation platform.