• Journal of Convergence for Information Technology
• /
• v.9 no.1
• /
• pp.12-18
• /
• 2019

The purpose of this study is to analyze the effects of government's R&D investment outcome on the IT industry. The analysis of R&D investment outcome developed emphasizing qualitative outcome more than quantitative outcome. However, it is still leaning on technological outcome-centered methods, having relatively little interest in inputs that actually determine the outcome. Thus, this study intends to focus on the qualitative attributes of input resources. The results of the empirical analysis can be summarized as follows. In raising technological outcome and commercialization outcome of R&D investment, more funds per researcher and numbers of researchers and a longer development period had positive effects. However, a higher ratio of doctors had positive effects only on technological outcome (papers and patents), It is believed that leading to commercialization outcome needed a long period, but the period of task development was only an average of two years. On the contrary, collaboration had negative effects on technological process, which indicates that collaboration between two organizations having conflicting interests would lead to negative effects on the outcome. The results show that the qualitative attributes of input resources have significant effects on R&D investment outcome, and imply that it is necessary to emphasize the qualitative attributes from the input stage to promote government's R&D investment outcome in the future.

• Journal of Korea Port Economic Association
• /
• v.35 no.1
• /
• pp.1-18
• /
• 2019

It is debated whether the time value of bulk cargo should be reflected in the economic assessment of SOC investments. The purpose of this study is to present the basic considerations that should be addressed to reflect the time value of bulk cargo. The study first tried to understand the status of foreign countries, related research cases, and the limitations of applying findings to the domestic situation. Further, the method of reflecting the time value of bulk cargo, as well as the extent to which it is reflected, varies across countries. Furthermore, the reflection of the time value derived from the transport selection model remains a controversial issue. To overcome these limitations, this study suggests basic environment considerations to reflect time. Although the need to reflect the time value of bulk cargo is fully recognized, it seems that there are issues that need to be reviewed and solved before its actual implementation. To complement this, further research needs to be conducted, and it is expected that more clear guidelines will emerge.

• Monthly Newsletter
• /
• no.12
• /
• pp.1-4
• /
• 1988

5백87억6천만원규모 국고지원5백50억4천만원 - 해소할 과제 산적 투자와 시간필요 - 항별$\cdot$항종조정등 어항개발계획확대 - 어항공사 사진촬영법<3>

• Korean small business review
• /
• v.40 no.3
• /
• pp.1-24
• /
• 2018

The purpose of this study is verifying with corporate financial data that the required investment amount flow shows a similar pattern as times passed, in new product development by start-up company. In the previous paper, the same authors proposed the required investment amount flow as a 'New Product Investment Curve (NPIC)'. In this study, we have studied further in various types of companies. The samples used are accounting data of 462 companies selected from 5,873 Korean companies which were finished external audit in 2015. The results of this study are as follows; The average investment period was 3 years for the listed companies, while 6 years for the unlisted companies. The investment payback period was 6 years for listed companies, while 17 years for unlisted companies. The investment payback period of the company supported by big affiliate company (We call 'greenhouse company') was 14~15 years, while 17 years for real venture companies. When we divide all companies into 4 groups in terms of R&D cost and variable cost ratio, NPIC explanatory power of 'high R&D and high variable cost ratio group (Automobile Assembly Business) is best. Among the eight investment cost indexes proposed to estimate the investment amount, the 'cash 1' (operating cash flow+fixed asset excluding land & building+intangible asset, deferred asset change)/year-end total assets) turned out to be the most effective index to estimate the investment flow patterns. The conclusion is that NPIC explanatory power is somewhat reduced when we estimate all companies together. However, if we estimate the sample companies by characteristics such as listed, unlisted, greenhouse, and venture company, the proposed NPIC was verified to be effective by showing the required investment amount pattern.

• Journal of the Korean GEO-environmental Society
• /
• v.8 no.3
• /
• pp.11-18
• /
• 2007

This paper studied the economical efficiency of ground source heat pump system under various conditions in apartments which have important effects on the housing market. And this study analysed the initial cost increase, saved managing cost and recovery time of initial cost. Analysis result showed as time of heating-cooling and water heating increases, the amount of saved managing cost increased much than the initial construction cost, so recovery time shortened. And as the net area of apartment increases, the recovery time increased. The study of the relation between the installation type and recovery time of initial construction cost showed when heat-cooling system adapted ground source heat and water heating system adapted waste heat, the initial construction cost was recovered most quickly. When Ground Source Heating system was used for the heating-cooling and water heating system, ground source heating system was used for the heating-cooling and waste heat used for water heating, and ground source heating system was used for the heating-cooling and LNG used for water heating, the construction cost increased 72,000, 66,900 and 62,300 won each per $m^2$ compared to the current system (package air-conditioner, heating and water heating using LNG).

• Journal of Energy Engineering
• /
• v.5 no.1
• /
• pp.87-92
• /
• 1996

This paper formulates dynamic optimization model for Time-Of-Use Rates when a electric power system consists of three generators and a rating period is divided into three sub-periods. We use Pontryagin's Maximum Principle to derive optimal price and investment policy. Particularly the cross-price elasticities of demand are considered in the objective function. We get the following results. First, the price is equal to short-run marginal cost when the capacity is sufficient. However, if the capacity constraint is active, the capacity cost is included in the price. Therefore it is equal to the long-run marginal cost. Second, The length of rating period affects allocation of capacity cost for each price. Third, the capacity investment in dynamic optimization is proportional to the demand growth rate of electricity. However the scale of investment is affected by not only its own demand growth rate but also that of other rating period.

• Proceedings of the Korea Society for Simulation Conference
• /
• 2004.05a
• /
• pp.69-71
• /
• 2004

반도체 산업은 21세기 정보화 사회를 선도하는 핵심부품 산업으로 국가의 첨단 산업 발전을 촉진하는 주력산업이다 반도체 산업은 첨단 핵심 부품산업으로써, Timing산업, 고부가가치, 고성장, 고 위험, 기술 집약적 특징을 갖는다. 반도체 라인 건설에는 수 조원의 비용과 수년의 시간이 투입되어야 하므로, 생산 및 설비투자 계획의 옳고 그름에 따라 회사의 생사가 결정될 수 있다. 생산 및 설비투자계획을 세우기 위해선 여러 가지 변수를 적용시켜야 한다. 이에 본 과제에서는 과거의 판매자료를 바탕으로 마련된 패턴을 이용하여 라인의 생산계획 및 설비투자 계획을 수립하고자 한다.

• Korea Petroleum Association Journal
• /
• no.7 s.185
• /
• pp.77-79
• /
• 1996

95년중 우리나라는 1인당 국민소득이 처음으로 1만달러를 넘어 섰으며, 경제규모 (경상GNP)는 4,517억달러로 세계 11위, 교역규모는 2,603억달러로 세계13위(94년기준) 국가로 부상하였음. 경제구조면에서도 농림어업의 비중이 낮아지고 광공업 및 서비스업의 비중이 높아지는 등 산업구조가 고도화되었으며, 최종 소비지출의 비중이 낮아진 반면 설비 및 건설투자의 비중이 높아졌음. 또한 엥겔계수가 낮아지고 노동소득분배율이 높아지는 등 경제구조가 전반적으로 선진국형에 근접해가고 있는 것으로 나타났음. 이와 같은 경제발전에 따라 제조업 근로자의 주당 평균 근로시간, 인구 1만명당 의사수, 주택 보급률, 고등교육기관 학생수 및 연구개발투자액의 대GNP 비중 등 주요사회지표가 크게 호전된 것으로 나타났음. 특히 이중에서도 고등교육기관 학생수 및 연구개발투자액의 대GNP비중등은 우리나라의 높은 교육열등을 반영하여 주요국의 1만달러시기 수준보다 높은 것으로 나타났음.

• Journal of the Korean Magnetics Society
• /
• v.2 no.2
• /
• pp.105-113
• /
• 1992

조성이 Mn$_{x}$Zn$_{1-x}$ Fe$_{2}$O$_{4}$ 훼라이트(x=0.75, 0.52)를 pusher type 연속 전기로를 이용하여 질소 분위기하에서 1360 .deg. C 로 3시간 동안 소결하여 얻어냈다. 본 연구에서는 스피넬 구조인 Mn-Zn 훼라이트의 FMR(Ferrimagnetic Resonance) 스펙트럼 특징과 초기투자율과의 상관성을 조사하고자 EPR X-band 스펙 트로미터를 이용 9.50 GHz의 microwave frequency에서 FMR 실험을 수행하였다. FMR 공명흡수선은 주 자기공명 흡 수선외에 낮은 자기장에서 약한 subsidiary 공명흡수선을 나타내는데 온도변화에 따른 주 자기공명 흡수선과 sub- sidiary 공명흡수선(제2, 제3 공명흡수선)의 세기, 공명선폭, g값 등의 온도 의존성을 연구함으로써 제2 공명흡수 선이 나타나는 원인을 분석하였으며, 자기공명 흡수선의 g값, 자기공명선 세기, 그리고 공명선폭과 초기투자율의 상관성을 연구하였다. 실험 결과 주 자기공명 흡수선의 g값, 자기공명선 세기, 공명선폭은 초기투자율 값과 밀접 한 관련이 있음을 확인할 수 있었다.었다.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2012.07a
• /
• pp.273-274
• /
• 2012

요즘 사람들은 대부분 스마트폰을 사용하고 있다. 이것은 간편하고 약간의 시간을 투자하여 구인구직 정보를 쉽게 만들 수 있는 어플리케이션으로 이 프로그램은 스마트폰에 어플리케이션을 설치 후, 사용자가 시간과 장소에 구애 받지 않고 손쉽게 구인구직 정보를 작성하거나 그에 해당하는 자료를 검색하고 면접후기와 같은 정보를 공유하는데 목표를 두고 있다.