• STI Policy Review
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• 제1권4호
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• pp.1-20
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• 2010

This paper explores the role of entrepreneurship education in a modern economy and how the government, academic, and nonprofit sectors in the United States have responded to this growing field. There are several sectors that play important roles in the entrepreneurship education landscape in the United States. Over the past decade, there has been increasing participation of Federal and state governments. This recent trend suggests the field may be increasing in maturity and legitimacy, showing promise for expanding the reach of entrepreneurship education programs. Programs sponsored by nonprofit organizations and private foundations complement government initiatives and display an effective means of leveraging knowledge and resources across the relevant sectors. Thus, new initiatives, whether initiated by government or academia, should learn from the successes of this sector as well as be carefully considered within the context of existent programs and services. Nonetheless, the potentially dynamic environment of the entrepreneurship education field in the United States offers a specific opportunity to leverage the experience in mentorship activities at the post-secondary education to address a possible gap in these activities at the secondary education level.

• 대한교통학회지
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• 제2권1호
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• pp.3-16
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• 1984

Development of para-transit is imminent in modern metropolis which are galloping toward motorization. Compared with other already industrialize countries, our metropolis can take a vantage of late starter in coping with urban transportation problem. Our metropolis are still heavily relying on public and/or pare-transit in modal split. Current government policy toward taxi-cab, however, seems to contradict with the objective of developing para-transit. If it is not adequately developed, the middle-class people of higher income would have no other option than having their own auto as already been observed. It will centainly accelerate our motorization process so that we follow the model of industrialized countries, and their problems too. Insisting that our transport policy should be drastically reformulated in favor of paratransit in addition to public transit, this study reappraise current policy on taxi-cab with respect to fare, prohibition of shared-ride, and other regulatory measures and propose and management model for taxi fare and operating policy in metropolis.

• 로봇학회논문지
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• 제15권4호
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• pp.398-403
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• 2020

Robot's throwing control is difficult to accurately calculate because of air resistance and rotational inertia, etc. This complexity can be solved by using machine learning. Reinforcement learning using reward function puts limit on adapting to new environment for robots. Therefore, this paper applied deep reinforcement learning using neural network without reward function. Throwing is evaluated as a success or failure. AI network learns by taking the target position and control policy as input and yielding the evaluation as output. Then, the task is carried out by predicting the success probability according to the target location and control policy and searching the policy with the highest probability. Repeating this task can result in performance improvements as data accumulates. And this model can even predict tasks that were not previously attempted which means it is an universally applicable learning model for any new environment. According to the data results from 520 experiments, this learning model guarantees 75% success rate.

• Environmental Analysis Health and Toxicology
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• 제30권sup호
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• pp.3.1-3.11
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• 2015

Objectives This study presents the indicators and proxy variables for the quantitative assessment of green chemistry technologies and evaluates the relative importance of each assessment element by consulting experts from the fields of ecology, chemistry, safety, and public health. Methods The results collected were subjected to an analytic hierarchy process to obtain the weights of the indicators and the proxy variables. Results These weights may prove useful in avoiding having to resort to qualitative means in absence of weights between indicators when integrating the results of quantitative assessment by indicator. Conclusions This study points to the limitations of current quantitative assessment techniques for green chemistry technologies and seeks to present the future direction for quantitative assessment of green chemistry technologies.

• 산업경영시스템학회지
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• 제18권34호
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• pp.139-146
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• 1995

This study is concerned with cost analysis in periodic maintenance policy. Generally periodic maintenance policy in which item is repaired periodic interval times. And in the article minimal repair is considered. Minimal repair means that if a unit fails, unit is instantaneously restored to same hazard rate curve as before failure. In the paper periodic maintenance policy with minimal repair is as follows; Operating unit is periodically replaced in periodic maintenance time, if a failure occurs between minimal repair and periodic maintenance time, unit is replaced by a spate until the periodic time comes. Also unit undergoes minimal repair at failures in minimal-repair-for-failure interval. Then total expected cost per unit time is calculated according to maintenance period and scale parameter of failure distribution. Total cost factors ate included operating, fixed, minimal repair, periodic maintenance and replacement cost Numerical example is shown in which failure time of system has erlang distribution.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2002년도 춘계학술대회 논문집
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• pp.94-99
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• 2002

The traffic policy of a city in Korea has brought to many traffic problems by putting emphasis on the only side of mobility in the past that the personal transportation was put first in importance more than the public transportation. As the result of this policy, in the process that the traffic policy of large cities in Korea changes into accessibility, it is shown for re-lighting up the development of the public transportation to be going to be able to get many suggestions in searching for the desirable developing direction of the new means of transportation that will arrive at Korea in the future. Especially, compared with the policy of U.S.A. on the traffic plan that has concentrated on the road and the vehicle, and that of Europe that has put first in the walking and the public transportation system, it is considered as an important thing that the lesson is given to us about what is important for the desirable city development. Transportation can be divided into four; a railroad transportation. a road transportation, a marine transportation, and an aerial transportation.

• 산업경영시스템학회지
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• 제18권36호
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• pp.287-295
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• 1995

This paper is concerned with cost analysis model in periodic maintenance policy. Generally periodic maintenance policy in which item is repaired periodic interval times. And in the article minimal repair is considered. Mimimal repair means that if a unit fails, unit is instantaneously restored to same hazard rate curve as before failure. In the paper periodic maintenance policy with minimal repair is as follows; Operating unit is periodically replaced in periodic maintenance time, if a failure occurs between minimal repair and periodic maintenance time, unit is replaced by a new item until tile periodic maintenance time comes. Also unit undergoes minimal repair at failures in minimal-repair-for-failure interval. Then total expected cost per unit time is calculated according to scale parameter of failure distribution. Maintenance cost factors are included operating, fixed, minimal repair, periodic maintenance and new item replacement cost. Numerical example is shown in which failure time of system has weibull distribution.

• 정보관리연구
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• 제26권4호
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• pp.1-27
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• 1995

정보사회에서의 통신서비스는 정보교환의 중요한 매체이며 이러한 통신서비스의 정보화란 그 사회 모든 부분에 통신서비스를 통한 정보의 교환이 가능해짐을 의미한다. 본 연구는 통신서비스 정보화의 이론적 토대 위에 우리나라 통신서비스의 역사 및 현황을 살펴보고 분석한 뒤, 그 분석을 바탕으로 개선 방향을 제시하고 있다.

• Asian Journal of Innovation and Policy
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• 제8권1호
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• pp.97-121
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• 2019

The Korean government has focused on universities or colleges as the main targets of its startup policy since the 2010s. However, the performance is not so good, with a low survival rate. The purpose of this study is to examine the factors that underpin the success of student startups. First, through a review of the literature, this study compared the success factors of student startups with those of venture startups, which means the general startup sector, as well as youth startups, also a focus of startup policy targeting youngsters outside universities or colleges. Second, we analyzed case studies of startup companies connected University H. The literature review showed that the main target of student startups is the employment of university students. There is a lack of studies on success factors; existing studies only emphasize the entrepreneurship of students. The results of case studies showed several factors of success similar to those of general venture startups: founders, business model and resources including team, and mentoring.

• 한국콘텐츠학회논문지
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• 제15권7호
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• pp.138-147
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• 2015

광고정책은 새로운 방송사업자가 등장할 때마다 광고 유형별 진입장벽을 만들어 안정적인 성장 기반을 제공하는 방식으로 변해왔다. 하지만 지속적인 광고시장 위축은 광고 유형별 진입장벽을 제거할 수밖에 없는 상황을 초래하고 있다. 광고 유형별 진입장벽 해체는 제작주체들로 하여금 광고 획득을 위한 과잉 경쟁 상황에 빠져들게 함으로써 제작비를 상승시키는 악순환 과정을 유발한다. 자유경쟁 시장 상황에서 발생하는 문제를 해결하는 방법은 냉혹한 시장 원리에 방송 제작산업을 개방해두는 것이다. 시장에 존재하는 제작주체들의 적절한 수를 결정하는 것은 시장 자체의 기능이다. 따라서 경쟁에서 도태되는 제작주체들은 시장에서 퇴출되는 체계를 구축해야 한다. 또한 궁극적으로 수신료 기반의 공영방송은 광고를 금지하는 방향의 정책적 대안 마련이 필요하다.