• Journal of Labour Economics
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• v.34 no.1
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• pp.33-69
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• 2011

This study analyses a productivity effect by E&T and R&D activities via estimation of E&T stock, R&D stock, and patent stock in a corporate level. Particularly, the analysis reflects the effects of skilled training after estimating E&T stock from E&T flow. When a spillover effect of E&T is analyzed, a methodology using technical proximity concept becomes a new experiment. Also classifying long and short term effects from the usage of Dynamic Panel Data Analysis becomes a new trial, too. The results of study appear that the productivity effects from E&T investments are relatively lager than R&D investments. Through spillover effects and long-term effects E&T and R&D activities have a strong influence on the corporate's productivity.

• Journal of Digital Convergence
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• v.18 no.5
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• pp.441-453
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• 2020

This study conducted a questionnaire survey on SNS users who are conducting K-POP record collection activities using SNS and verified factors affecting the intention to continue K-POP record collection activities. The main methods of analysis were exploratory factor analysis, confirmatory factor analysis, correlation analysis, and path analysis using SPSS 21.0 program and AMOS 21.0 program. The results are summarized as follows. First, compatibility for K-POP record collection activities through SNS has a positive effect on perceived usefulness, and observability also has a positive effect on perceived usefulness and perceived ease of use. Second, perceived ease of use for K-POP records collection using SNS has a positive effect on perceived usefulness. Third, perceived usefulness and perceived ease of use for K-POP records collection using SNS have a positive effect on continuous intention of K-POP records collection activity through SNS. As a result of this study, it suggests that the intention to continue the collection activities of K-POP records using SNS can be explained through the integration of innovation diffusion theory and technology acceptance model.

• Korean Journal of Social Welfare Studies
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• v.47 no.4
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• pp.71-92
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• 2016

The purpose of this study is to analyze importance and satisfaction of management and curriculum of personal assistants education. This study analyzed exploratory factor of importance and satisfaction questions in personal assistants education, correlation and a difference of importance and satisfaction according to factors, and investigates improvement plan through IPA analysis. The targets of this research are 231 personal assistants participating in personal assistants education managed in South Gyeonggi-do. As a result, it is shown that the sub-factors of personal assistants education mostly have a correlation, and two factors such as 'education management' and 'curriculum' are investigated. As a result of IPA analysis, it is drawn that 'education period' needs intensive improvement in education management, and 'practice class' and 'theory class' need intensive improvement in curriculum. This research is significant because the importance and satisfaction of personal assistants education are investigated and the improvement plan is provided.

• Korean Journal of Childcare and Education
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• v.8 no.5
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• pp.47-66
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• 2012

The purpose of this study was to examine the effect of theme centered block play on young children's metacognition and sociality. The subjects of this research were a total of 60 five year old children from two classes in Gwangju. The average age of the subjects was 73 months. The subjects were randomly assigned to two groups. The experimental group participated in theme centered block play activities while the control group participated in free block activities. The collected data were analyzed by t-test using the SPSS program. The results of this study were as follows: The experimental group showed significantly higher improvement than the control group in young children's metacognition and sociality. Therefor, it might be concluded that theme centered block play activities contributed to the development of metacognition and sociality of young children.

• Proceedings of the Korean Society for the Gifted Conference
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• 2003.05a
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• pp.127-130
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• 2003

본 연구는 과학영재교육의 중요성이 증대되고 있는 현 시점에서 이의 효과적인 성취를 가져오기 위해선 우선 영재 판별의 시도가 다양해져야 한다는 필요성에서 출발하였다. 그 동안 영재 판별은 주로 인지수행의 결과적인 측면을 다루었다고 본다면, 본 연구는 인지수행의 과정적인 측면을 다루었다고 할 수 있다. 인지수행의 과정적인 측면은 뇌기능의 활동성을 파악하는 것으로 가능하다. 따라서 뇌의 활동성에 대한 뇌파측정 방법을 통해 좌.우뇌 기능상에서의 뇌파특성을 파악해 보므로써 영재성 판별의 한 방법으로서 그 가능성의 단초를 제공하는데 본 연구의 주목적이 있다. 이를 위해 영재성 판별 및 뇌기능 연구방법과 뇌의 정보처리과정에 대한 이론적인 고찰을 바탕으로 초등학교 4-6학년 아동 중 과학영재아 11명, 일반아 10을 연구대상으로 선정하여 PC용 뇌파측정기를 통해 이들의 뇌파특성을 분석한 결과, 다음과 같이 나타났다. 다음 표는 과학영재아 및 일반아의 아무런 과제를 수행하지 않은 상태의 기본뇌파와 과학 창의적 과제를 수행중인 상태에서의 뇌파를 좌뇌와 우뇌의 뇌파 활성도별로 그 차이를 분석한 것이다.

• Journal of Internet of Things and Convergence
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• v.9 no.6
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• pp.83-92
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• 2023

The purpose of this study is to provide a rational management strategy to improve the management performance of companies through intellectual property activities. Through this study, we aim to explore countermeasures to strengthen competitiveness in a changing global environment. A survey of 200 companies was conducted from September 1 to October 30, 2023. Statistical analysis was conducted using frequency analysis, exploratory factor analysis, reliability analysis, correlation analysis, multiple regression analysis, and difference analysis. The conclusions are as follows. First, the impact of intellectual property activities on management performance was found to be creation and utilization. Second, the impact of management strategies on management performance was found to be differentiation strategy, cost advantage strategy, and concentration strategy. Third, cost advantage strategy has a partial mediation effect on the relationship between creation activities and managerial performance of intellectual property activities. Fourth, the differentiation strategy has a partial mediating effect on the relationship between the creation of intellectual property activities and managerial performance. In addition, differentiation strategy has a full mediating effect on the relationship between the utilization of intellectual property activities and performance. Fifth, concentration strategy has a partial mediating effect on the relationship between intellectual property activity utilization and management performance. Sixth, there is a difference between creation activities, protection activities, utilization activities, cost advantage strategy, differentiation strategy, financial performance, and non-financial performance based on venture certification status. As the importance of intellectual property is increasing in the era of technological hegemony, IoT companies will need to improve their management performance through venture certification and strategies utilizing intellectual property in order to secure future competitiveness. Based on this study, we hope that IoT companies will maximize their performance by implementing efficient strategies that consider IP activities.

• Journal of Convergence for Information Technology
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• v.8 no.5
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• pp.219-228
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• 2018

The purpose of this study is to analyze the cases of social contribution activities of cosmetics companies and to suggest directions for related activities to be continued more effectively in the future. The case was analyzed through the report, public information, and interview with the person in charge. The main results derived from previous studies and case studies. First, social contribution activities of cosmetics companies are performed in a variety of ways such as education, business, medical care, health, environmental protection, culture, art, donation etc. Second, corporate social contribution activities and diversity were found to be highly correlated with firm size. Third, the effectiveness of social contribution activities can be enhanced through collaboration with social enterprises and professional organizations. Forth, strategic approach to social contribution activities, systematic public relations, and CEO's sense of responsibility have a major influence on related activities. Based on the results of this study, it has been suggested that CSR activities of cosmetics companies can be made more effective.

• Proceedings of the Safety Management and Science Conference
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• 2000.11a
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• pp.63-71
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• 2000

대량생산체제를 위주로 했던 산업혁명 초기에는 원가계산방식이 비교적 수월하였다. 생산에 투입된 비용을 그대로 생산량으로 나누기만 하면 되었고 이 수치를 그대로 원가라고 간주하여도 기업이 존속하는데는 아무 영향이 없었다. 물론 이 때에도 간접비라는 것은 존재하였으나 그 비중이 미미했기에 이를 무시하여도 되었던 것이다. 그러나 그 때와 달리 지금은 기업환경은 다품종 소량생산, 고객 주문 생산 등의 다양한 형태로 변화되어 왔으며 유연생산시스템, 적시생산시스템 등과 같은 새로운 경영기법 및 생산관리 기법이 발달함에 따라 그간 무시되어 왔던 간접비가 오히려 직접비보다도 많아지는 현상이 생기게 되었다. 그래서 증가하는 간접비를 효과적으로 제품이나 서비스에 배부하여야 하는 필요성에서 연구가 시작되었고 그 결과로서 나온 원가계산방법이 활동기준원가계산시스템이다. 우리 나라에는 90년대 초반에 도입되어 여러기업이 시스템을 구축한 상태이며 이에 대한 사례를 연구한 논문도 발표되었다. 활동기준원가 계산시스템이 기존의 원가계산시스템보다 더 정교하다는 것은 많은 이미 많은 연구들에서 입증이 되었지만 그래도 실제 시스템의 구축에 있어서는 아직도 많은 연구과제가 남아있다. 본 연구는 시스템의 구축과정에서 핵심과정으로써 반드시 거쳐야 하는 활동분석단계에 관심을 두고 활동분석과정을 가능한 적은 비용으로 빠르게 수행하기 위한 방법을 모색하였다. 그 방법으로 선택한 것이 기존의 기업보유자료를 이용하여 활동분석을 수행하는 것으로 비록 활동분석데이터의 신뢰성에는 조금 부족한 면이 있을 수 있으나 기업보유자료가 활동분석과 개연성이 있음을 제시하고자 하였다. 한다.드가 전송한 패킷은 이전 셀 지역에 있는 에이전트가 새로운 셀 지역에 있는 이동 노드로 패킷을 재전송하여 전달하는 smooth 핸드오프 기능을 제공한다. 이전 셀 지역에 속한 외부 에이전트가 바인딩을 갱신하기 전에 송신 노드로부터 이동노드로 전달된 패킷이 있을 경우는 패킷을 저장하여 이후에 이동 노드의 위치 정보에 관한 바인딩 정보가 갱신되면 이러한 바인딩 정보에 따라 패킷을 재전송하는 버퍼기능도 제공한다. route optimization mobile IP는 기본적인 mobile IP에서의 복잡한 라우팅 문제를 해결하고, 핸드오프에서의 패킷 손실률을 최소화 한다.본 논문에서는 컴퓨터 시뮬레이션을 통해 smooth 핸드오프를 이용한 mobile IP의 성능을 분석한다. 일반적으로 데이터 트래픽 특성, 노드의 이동성, 바인딩 갱신시간, 버퍼관리 방법 등은 핸드오프 동안 mobile IP의 성능에 많은 영향을 미친다. 따라서 시뮬레이션 모델을 이용하여 다양한 트래픽 환경에서 위에 언급된 성능 파라미터들의 영향을 분석한다. 마지막으로 시뮬레이션 결과를 이용하여 mobile IP의 성능을 개선시키기 위한 방법을 제시한다. 제시하고자 한다.과로 여겨지며, 또한 혈청중의 ALT, ALP 및 LDH활성을 유의성있게 감소시키므로서 감잎 phenolic compounds가 에탄올에 의한 간세포 손상에 대한 해독 및 보호작용이 있는 것으로 사료된다.반적으로 홍삼 제조시 내공의 발생은 제조공정에서 나타나는 경우가 많으며, 내백의 경우는 홍삼으로 가공되면서 발생하는 경우가 있고, 인삼이 성장될 때 부분적인 영양상태의 불충분이나 기후 등에 따른

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.7
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• pp.406-418
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• 2020

When developing weapons systems, it is important to implement the functions and performance of equipment suitable for development purposes, but it is very important to ensure that the equipment is capable of operating without any vacuum with reliability after development. Therefore, various activities are carried out to enhance reliability of equipment. Reliability is enhanced by using high-specification parts in development, reliability verification through analysis, and testing using development prototypes to reinforce and improve the parts that are lacking in equipment. However, recently, development schedules are shortened due to rapidly changing external conditions and technologies, and there are cases where sufficient reliability growth activities were not carried out due to problems such as cost. Examples are projects that perform reliability activities only in analytical methods (reliability, FMECA). In this paper, analyzing and testing methods for analysis and testing were carried out on the same equipment through FMECA and super-accelerated life test, the contents of reliability growth activity were derived, the results of design change/review were accordingly compared, the differences between the two methods were analyzed, and measures were proposed to strengthen reliable growth activities. It was concluded that reliable growth activities through analysis from the beginning of development and reliable growth activities through testing should be carried out at the completion of initial prototype production.

• Management & Information Systems Review
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• v.32 no.5
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• pp.135-155
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• 2013

Corporate primary goal has shifted from profit-orientation toward broader socially motivated perspectives, over the recent year. According to this phenomena, extensive research have been conducted to assess the empirical association between CSR and firm value. However, the results of previous studies are largely indeterminate which are attributed to the ignoring various indeterminate variables between CSR and firm value. Specifically, the purpose of this paper verifies the empirical association between CSR and firm value with considering capital constraint as core moderator variable by using structural equation modeling(SEM). Main results of this paper are as follows. We find that firms with better CSR performance face lower capital constraint and capital constraint is significantly related to firm value in negative direction, also. The result suggest that better CSR performance is associated with superior stakeholder engagement, in turn, CSR initiatives leads to firm value creation. Also, the capital constraint still remain positive to firm value even if capital constraint is considered moderator variables. Our findings implicated that CSR literatures should consider moderator variables, such as capital constraint, which could be affected firm value.