• Proceedings of the Korea Information Processing Society Conference
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• 2016.10a
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• pp.886-887
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• 2016

최근 우리사회는 다양한 형태의 여가활동 및 생활체육에 대한 국민적 욕구와 열망과 더불어서, IoT기술발전 및 시장확대에 힘입어 다양한 스마트 자전거 제품이 등장하고 있다. 그러나 기존 제품의 경우 속도계 장치에 의한 주행기록을 분석할 수 없고, 스마트폰 앱의 경우에는 정확한 데이터 측정이 불가능하다. 이러한 문제점을 해결하기 위하여, 본 논문에서 개발한 스마트 자전거는 마그네틱 센서를 이용하여 거리, 속도, 시간 등을 측정/분석하고, 라이딩 정보를 어플리케이션에 저장하여 사용자가 라이딩 정보를 언제든 살펴볼 수 있다. 또한, 라이딩 속도에 따라서 LED의 색상이 변경되어 익스트림 라이딩 모드 및 LED제어, 스마트 자물쇠 기능 등을 제공한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2016.10a
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• pp.843-844
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• 2016

시장으로부터 요구는 야간에도 고화질 영상을 획득하기 위한 기술개발이 필요하다. 우리는 방범용 야간 고화질 영상 확보를 위한 시스템과 감성적인 실내외 조명 관리 시스템을 위한 IADP(IoT Auto Dimming Platform)를 설계한다. 공원이나 학교 등 외부 환경에 따른 LED 오토 디밍 제어 및 접근감지에 따른 밝기 제어, 가정에서 거실등, 침실등, 공부방 등의 환경을 고려한 밝기 제어를 통한 시력 보호 및 감정 제어, 및 테마 프로그램에 의한 주기적 LED 경관 제어를 제공하도록 외부환경에 따른 테마형 IoT 오토디밍 플랫폼 IADP를 설계한다.

• Journal of the Korean Society of Industry Convergence
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• v.26 no.4_2
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• pp.553-559
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• 2023

In the case of a government's digital platform, that is exploring public software for the first time through private investment, it's important to conduct a feasibility analysis and select appropriate methods before promoting digital projects. Looking ahead, it's crucial to provide direction for the private-invested public software market to enter the global software market.

• Journal of Korea Port Economic Association
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• v.33 no.1
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• pp.89-110
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• 2017

The organization of the shipping conference -an international cartel, was approved by countries that recognized it for stabilizing routes as well as preventing excessive competition among liner shipping companies and recognized the characteristic of the liner service that is regularly repeated in the international liner shipping market. However, due to competition in bulk transportation and development of multimodal transport through new entrants, power expansion and vessel enlargement of non-aligned shipping companies; the shipping conference started collapsing, and was eventually abolished. As the shipping conference played an important role in the liner shipping market, there were changes in the competition structure of the liner shipping market, and this accordingly drove research on the effects of the abolition of the shipping conference on the liner shipping market. The effects of abolition of the shipping conference on the liner shipping market was analyzed after surveying the factors related to abolition of the shipping conference, and through the use of correlation and multiple regression analyses. Subsequent to the abolition of the shipping conference, the liner shipping companies increased global containership bottoms. Consequently, this led to fierce competition of freight charges. As a result, profitability of shipping companies diminished. However, shipping companies with a dominating cost structure recorded profits, while shipping companies with an inferior cost structure started recording a loss.

• Journal of the Economic Geographical Society of Korea
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• v.21 no.3
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• pp.231-253
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• 2018

This paper aims at analyzing ways to utilize the capital market for expanding housing welfare, focusing on the case of the affordable housing REITs in the United States. The main results of this study are as follows. First, the United States converts the keynote of its housing welfare policy to the provision of affordable housing, through private operators, and operates various support systems, including the LHITC program for them. Second, under this institutional framework, the use of capital markets for affordable housing is actively carried out, especially through the provision of affordable housing REITs such as CDT and AIMCO. Third, the public- driven housing REITs model and the private-led housing REITs model were proposed as ways to utilize the capital market through affordable housing REITs in Korea. Finally, policy improvement ways were proposed to promote the use of the capital market of affordable housing REITs.

• Journal of Digital Convergence
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• v.13 no.9
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• pp.177-182
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• 2015

The brand and product awareness of Korean electronics companies in the North American market has grown significantly and North American consumers has been recognized as an innovative technology products good performance of Korean electronics appliances. The consumer need of energy saving has led to a rise in market share because Korean electronics appliances have the excellence in energy saving aspects. The expansion of smartphones and mobile devices and the development of smart grid technology can affect electronics market. Domestic companies are continuously develop new product to provide consumers convenient with a variety of additional features combined consumer products. This study proposes a convergence model for sales prediction of electronic appliances using sales data of A company from the North American market. We develop the convergence model for sales prediction based on based on artificial neural network and genetic algorithm. In addition, we validate the superiority of the proposed convergence model by comparing the prediction performance of traditional prediction models.

• Korean Journal of Labor Studies
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• v.17 no.1
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• pp.325-350
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• 2011

This article examines part-time work in the UK in terms of its characteristics and institutional contexts. Part-time jobs developed early due to the UK's liberal market institution and low level of public support for female employment. A large proportion of the employed women (about 40 percent) work part-time. Part-time work has been largely for married women. The expansion of part-time work in the UK was primarily market-driven and led by employers. Married women have worked part-time work primarily to accommodate their family responsibilities. There have been significant changes in labor market regulation in the UK since 1997. The Labor government legislated the Part-time Workers Regluations in 2000 to protect part-time workers. The government has also changed and newly implemented various laws and policies for work-life balance. There has been a real progress in improving the quality of part-time work overall. Nevertheless, we have not seen qualitatively different results in terms of female employment patterns and the qualify of part-time work so far. It has been largely constrained by the government's liberal orienation and voluntarism of labor relations in the UK.

• Journal of Mushroom
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• v.21 no.3
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• pp.132-139
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• 2023

Light plays an important role in fruit-body development and morphology during Pleurotus spp. cultivation. To understand the effects of light color on fruit-body properties, we evaluated the fruit-body characteristics of Pleurotus spp. Varieties cultivated under blue, red, and purple LED light sources. The main results are as follows: The overall fruit-body shape showed differences depending on the color of the LED light. The fruit-bodies of mushroom cultivated under blue and purple light were generally similar to the mushroom shapes typically produced, while those of mushroom cultivated under green light were abnormally shaped, probably due to the absence of effective light source. The average cap lightness of mushrooms cultivated under blue, green, and purple LED lights was 57.0, 57.4, and 59.4, respectively. The average cap lightness of all varieties except Wonhyeong1ho and Hwang-geumsantari cultivated under the three LED light sources were statistically significantly different (P<0.05). The cap redness varied significantly depending on the LED lighting and variety. Only Gonji7hoM, the cap color mutant of Gonji7ho, showed negative cap redness values under all three LED light sources. Among the eight varieties excluding Gonji7ho, the highest cap redness was observed when cultivated under the blue LED. The average harvest weight of the varieties cultivated under purple, blue, and green LED light were 68.0, 58.3, and 50.1 g, respectively. The yield of Gonji7ho, the mushroom variety with the highest yield, cultivated under blue, green, and purple LED light were 92.8, 77.1, and 98.6 g, respectively. The earliness when grown under the purple, blue, and green LED lights were 5.3, 5.8, and 5.8 days, respectively. Among the varieties, six, three, and two cultivars showed the shortest earliness under the purple, green, and blue LED, respectively. The fruit-body lengths were 66.4, 51.8, and 46.8 mm when cultivated under green, purple, and blue lights, respectively. These results are expected to serve as a foundation for producing mushrooms with traits demanded in the market.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2018.05a
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• pp.187-188
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• 2018

2004년 체결된 평형수관리협약은 2016년 9월 비준되어 2017년 발효 예정이었다. 그러나 발효 직전, 물리적으로 모든 선박에 평형수 처리장치를 설치하기 어렵다는 의견에 따라 2년 유예되었다. 따라서 수만 척의 선박은 2024년까지 평형수 처리장치를 설치해야 하며, 해당 시장의 규모는 약 40조원까지 성장할 것으로 추정된다. 그러나 우리나라에서 개발한 현재 평형수 처리장치는 IMO 형식승인을 받은 제품만 있을 뿐 USCG 형식승인을 받은 제품이 없어 평형수 처리시장을 선점하기에 어려움이 있다. 따라서 본 연구에서는 USCG 성능기준을 만족하는 평형수 처리기술 개발을 위하여 IMO와 USCG 성능기준의 차이를 비교하고, 현재 사용되고 있는 선박평형수 처리장치의 국내 및 세계 기술 수준을 비교 분석하여 자외선 발광 다이오드 및 이산화티타늄을 이용한 평형수 처리장치 개발방향을 제시한다.

• Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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• 2009.05a
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• pp.10-12
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• 2009

20C까지 단순히 밝혀주고, 점멸만 하는 조명형태가 21C부터는 밝기의 조정, 칼라의 조정이 병행된 감성조명의 시대로 도래하여, 주거생활 조명, 상업용 조명, 문화공간의 조명 둥에 본격적으로 도입되기 시작했다. 특히, LED 응용조명은 자동차 분야 및 PV분야 등 다양하게 활용되고 있으며, 연 4조원의 세계시장과 2,000억원의 국내시장으로 점유되고 있으며, 연평균 45% 성장 ($1995{\sim}2004$)으로, 성능은 향상되고, 가격은 년 $10{\sim}15%$로 인하되어 "미디어파사드"로 그 응용이 눈부시게 가속화 되는 실정이다. 조명기술의 눈부신 발전과 조명산업의 발전이 어우러진 가운데 조명 산업 현장에는 조명전문가의 소요가 급속히 발생되고 있는 반면에 실무형 조명전문가를 양성하는 교육기관과 프로그램이 턱없이 부족하여, 수요에 비하여 조명전문가 양성은 요원한 실정이다. 조명교육시스템을 구축하고, 실무형 조명전문가를 양성하고 있는 경북전문대학의 조명전문가 양성교육시스템을 참고로 하여, 보다 효율적인 단계별 중견조명 전문가의 양성에 대해 연구하여, 방향을 제시하고자 한다.