• Journal of Korea Technology Innovation Society
• /
• v.20 no.3
• /
• pp.754-780
• /
• 2017

This study was conducted to investigate whether WGB (Work-Growth Balance), an area of WLB (Work-Life Balance) improves Interpersonal Harmony, Creative Effort and Innovative Behavior in the organization, and whether Interpersonal Harmony and Creative Efforts have indirect effects on the relationship between WGB and Innovative Behavior. To test the hypothesis of this study, PROCESS Macro by Hayes (2013) was used. The results showed that WGB, Interpersonal Harmony, and Creative Effort influenced Innovative Behavior and WGB were variables that influenced Interpersonal Harmony. The variables influencing Creative Effort turned out to be WGB and Interpersonal Harmony. The indirect effect of Interpersonal Harmony and Creative Efforts was also confirmed in the relationship between WGB and Innovative Behavior. In addition, the magnitude of the effect between parameters was examined through Process Macro analysis. It turned out that there is a synergy relationship between WGB, Interpersonal Harmony, Creative Efforts and Innovative Behaviors. In future, more researches on WGB among various industries as well as mediating variables are expected. Further research is needed to study the various parameters of WGB and innovation behavior, and to Balance of Work-Family and Balance of Work-Leisure.

• Journal of Internet Computing and Services
• /
• v.8 no.4
• /
• pp.105-117
• /
• 2007

In order to succeed in a bid or development, the project manager should estimate its cost and schedule more accurately in the early stage of the project. Usually, the nominal schedule of most projects can be derived from rule of thumb, first-order estimation practice, or ball-park schedule estimation table. But the rule-of-thumb models for the nominal schedule estimation are so various, and the first-order estimation practice does not provide sufficient information. So they do not help much to decide on the proper development effort and schedule for a particular size of project. This paper presents a statistical regression model for deciding the development effort and schedule of a project using the ball-park schedule estimation table. First, we have redefined such words suggested in the ballpark schedule estimation table as shortest possible schedule, efficient schedule and nominal schedule, Next, we have investigated the relationship between the development effort and the schedule. Finally, we have suggested a model for estimating the development effort and the more accurate schedule of such particular sizes of software as are not presented in the ball-park schedule estimation table. The experimental results show that our proposed regression analysis model decreases the mean magnitude of relative error by 2% at maximum. Also this model can estimated the development effort and schedule for a particular size of software.

• Convergence Security Journal
• /
• v.15 no.5
• /
• pp.97-105
• /
• 2015

Technology Security, especially in knowledge-intensive society, is becoming the most important organizational activity for the long-term success of a firm. However, there is not sufficient empirical research of activities of technology securities and business performance. This is one of the reason why Korean firms are reluctant to invest their resources to the technology security. We have tried to empirically analyze the relationship between a market and technological characteristics, which is one of the important business environmental characteristics and the activities of technology securities of Korean business firm by taking three hypotheses related to this research and investigating 209 Korean firms. According to the statistical research, results of the analyses suggest that the market and technological characteristics have positive impact on the activities of technology securities. Also the activities of technology securities have positive impact on the performance of technology security. More specifically, the results suggest that the relationship between the competitiveness of market and technological excellency and the activities of technology securities is supported statistically. But, the reverse relationship between the easiness of market entrance and the activities of technology securities is supported statistically. Also, there is no moderating effect of firm size between the relationship between a market and technological characteristics and the activities of technology securities. Finally, the relationship between the activities of technology securities and the risk of technology leakage is supported statistically.

• Journal of Gifted/Talented Education
• /
• v.22 no.4
• /
• pp.875-892
• /
• 2012

The purpose of this study was to investigate the relationship among peer relation disposition, relationship maintenance effort and school adjustment of gifted students and non-gifted students. And then the final purpose of the study is to give suggestions to help improving gifted students' peer relationship and their school adjustment. For the study, 175 gifted students and 179 non-gifted students in grades 4 and 6 of 5 elementary schools in urban areas were assessed on their peer relation disposition, relationship maintenance effort and school adjustment. The results are summarized as follows. First, gifted students were significantly higher than that of the non-gifted students as a whole. Second, in the correlation among peer relation disposition, relationship maintenance effort and school adjustment, peer relation disposition and relationship maintenance effort showed a significantly positive correlation with all the subvariables of school adjustment. Third, Sympathy-Acceptance disposition was the most influential factor for gifted students, and Independence-Responsibility disposition was the most influential factor for non-gifted students. Finally, the cluster analysis results based on the peer relation type of the gifted and the non-gifted suggested four meaningful clusters. And the four clusters showed significantly differences with all the subvariables of school adjustment. Implications of the study were discussed in depth related to the gifted education practices.

• Korean Journal of Construction Engineering and Management
• /
• v.18 no.4
• /
• pp.17-26
• /
• 2017

The sustainable growth of Construction Management(CM) market depends on clients'acceptance from positive project outcomes of CM services. Achieving the positive outcomes requires CM firms'competency and efforts. Equally, it is critical to understand and overcome barriers of CM performance, which cause inefficiencies and under-performance of CM services. The objective of the study is to identify and discuss the barriers of CM performance during pre-construction stages in private CM projects based on the FMEA technique. Major findings basically suggest that clients and CM firms have roles to play, individually and collaboratively, in order to improve CM performance by eliminating performance barriers.

• Physical Therapy Korea
• /
• v.8 no.4
• /
• pp.71-80
• /
• 2001

근위축성 측색 경화증 (amyotrophic lateral sclerosis: ALS) 환자에게 있어 호흡기능장애는 죽음에 이르게 하는 주요 원인 중 하나이다. 본 연구는 근위축성 측색 경화증이 있으며 호흡기능이 약화되어 있는 51세의 여성 환자를 대상으로 호흡운동 치료를 시행한 후 폐기능(pulmonary function)이 증진되었는지를 알아보고자 실시하였다. 연구 대상자는 6주간의 호흡운동 치료 프로그램에 참여하였다. 호흡운동 치료 프로그램은 횡경막 호흡(diaphragmatic breathing), 복부근육강화(abdominal mu scles strengthening), 지갑입술 호흡(pursed lip breathing), 그리고 동기 유발성 흡기폐활량계(incentive spirometer)를 이용한 흡기운동 등으로 구성되었다. 폐기능 검사는 이동식 호흡측정기(spirometer: MICROSPIROHI-198)를 이용해서 시행하였다. 또한 하지 에르고미터(cycle- ergometer)를 이용해 운동 시간을 측정함으로써 폐기능의 증진 여부를 알아보았다. 연구 대상자는 6주간의 호흡운동 치료 기간 동안 노력성 폐활량(forced vital capacity: FVC)과 정상 예측치에 대한 노력성 폐활량의 비율(percentage of the predicted forced vital capacity: %FVC), 그리고 하지 에르고미터의 운동 시간에 있어 현저한 증가를 보였다. 그러나 노력성 폐활량에 대한 1초간 노력성 폐활량 비(FEV1/ FVC)에 있어서는 약간의 감소를 보였다. 근위축성 측색 경화증 환자에게 6주간의 호흡운동 치료를 실시한 결과, 폐기능의 증진에 효과적임을 알 수 있었으며, 앞으로 더 많은 연구 대상자에게 그 효과를 알아보는 연구가 필요할 것이다.

• KDI Journal of Economic Policy
• /
• v.33 no.2
• /
• pp.81-110
• /
• 2011

Credit rating agencies(CRAs) are accused of failing to provide accurate and fair credit ratings and hence being responsible for the crisis. This paper tries to add on to the literature on credit rating reform through examining the CRAs in a model where rating quality is unobservable. We show that unobservability of rating effort results in the sub-optimal level of quality. Then the paper extends the model to incorporate ancillary services, competition and reputation. We show that ancillary services worsen the conflict of interests of the CRAs and that competition and reputation may not be strong enough to discipline the CRAs. Hence regulatory oversight and imposition of liability may be necessary in order to increase the accuracy of ratings.

• Journal of Advanced Navigation Technology
• /
• v.12 no.6
• /
• pp.681-690
• /
• 2008

The software reliability have to be improved as one major method to enhance the quality of developed software, and its defect is detected and modified through testing as a direct way to meet the purpose before releasing. Once its reliability grows up to the target and it is released to public. there may be operational reliability problem. The operational software reliability trend may be different depending on the condition whether it is universal or dedicated. And its reliability estimation is changed based on the condition if it follows uniform testing efforts or Weibull testing efforts. I study the operational reliability trend of dedicated software, applying two case testing efforts for the released item.

• Quality Improvement in Health Care
• /
• v.14 no.2
• /
• pp.101-114
• /
• 2008

흔히 관리의료 (Managed Care)라 불려지는 미국의 의료체계는 과거 약 30여년간 미국내 의료비용증가의 억제, 의료서비스 접근성 개선, 의료의 질향상이라는 세가지 목표를 이루기위해 시행되어 왔다. 이 관리의료체계는 지속적으로 증가하는 의료비용을 어느정도 억제하는데는 성공하였으나, 몇년전부터 의료정책전문가들은 관리의료체계의 의료비용증가 억제 역할은 이미 한계에 다다렀다고 판단하고 있으며, 의료서비스 접근성 개선이나 의료의 질향상에는 큰 성과를 이루지 못했다고 평가하고 있다. 그럼에도 불구하고 미국의 의료서비스 질향상을 위한 노력은 지속적이면서도 체계적으로 진행되어왔다고 자부하고 있다. 최근 미국내 의료서비스 질향상을 위한 형태를 살펴보면 자주 거론되는 것이 Prevention activity, Physician Profiling, Pay-for-Performance (P4P), Clinical Practice Guideline, Health Information Technology (Health IT)등임을 알 수 있다. 미국의 이러한 노력들이 최근 1-2년사이 한국내에도 널리 알려지고 이미 일부는 시범사업형태로 실시되고 있는 점을 감안하면 별반 다를 것이 없다고 여겨질 수 있으나, 여기서 주목할 것은 이러한 노력들이 미국내에서 시도되게된 계기와 목적, 그리고 그 과정들을 눈여겨 볼 필요가 있다는 점이다. 하지만 민간보험 주도 형태의 미국 의료시장에서 탄생한 이런 일련의 노력들이 정부주도하의 전국민건강보험체계로 운영되는 국내 의료시장에 도입되어 실효를 거두기 위해서는 모방형 도입이 아닌 국내 의료체계와 실정에 적합하도록 수정 혹은 개선된 형태로 선별, 도입되어야 함을 암시하고 있음도 주지해야 한다.

• Journal of Broadcast Engineering
• /
• v.20 no.1
• /
• pp.40-47
• /
• 2015

This paper discusses QoS enhancement in the Best-effort services of the service plan provided by MPEG Media Transport (MMT) systems for video streaming applications. Among MMT services, i.e. per-flow, per-class, and best-effort services, the server does not provide guaranteed bandwidth for the best-effort service only. Therefore, in the best-effort services, a bandwidth access priority is defined for various services, where the lowest priority is assigned to the low-level video services. To alleviate the issue of bandwidth limitation in the best-effort services, this paper investigates transmission of low-resolution video with low bitrate and up-sampling. Our experimental results prove the superiority of the proposed method in terms of delivered video quality.