• Korean journal of applied entomology
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• v.60 no.3
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• pp.313-314
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• 2021

We confirmed the parasitic characteristics of Asobara japonica according to the stage of development of Drosophila suzukii and observed the morphological differences between parasitized and unparasitized D. suzukii larvae and pupae. It was also confirmed that emergence period of A. japonica was longer than that of D. suzukii. A. japonica showed an effective parasitic and insecticidal effect on D. suzukii larvae, and it is expected that A. japonica could be used as a natural enemy for the control of D. suzukii.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2000.11a
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• pp.367-368
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• 2000

부산은 쾌적하고 깨끗한 도시환경조성으로 향후 2002년 아시안게임 및 월드컵 경기대회를 성공적으로 개최하기 위해 대기오염자동측정소(11개소) 및 대기환경측정차량을 이용하여 부산지역 및 주요 경기장, 마라톤코스 등에 대해 대기질을 측정하고 그 결과를 토대로 대기오염관리 대책을 수립하고 있다. 대도시 지역의 대기오염은 약 70% 가량이 자동차에서 배출되는 오염물질에 의한 것으로 부산의 경우 우리나라 제1의 항구도시라는 특성상 콘테이너 차량의 95%가 부산에 집중해 있으며$^{1)}$ , 매년 자동차의 증가율이 약 10%로 지속적으로 증가하고 있으며 낮은 도로율로 인한 자동차의 정체가 가중되어 대기질이 악화되어 마라톤 등의 도로경기는 차량의 배출가스에 절대적으로 많은 영향을 받을 수밖에 없는 현실이다. (중략)

• Journal of Broadcast Engineering
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• v.1 no.1
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• pp.55-61
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• 1996

We propose an algorithm for video effects of sports broadcasting that informs TV viewers of a sports player's sequential performing forms and locus in detail when gymnastic game such as 'vault' is broadcasted. It records the image sequences while a player is performing, extracts only the player's performing forms from background scenes by a proposed algorithm, superposes them sequentially on a background scene, and broadcasts them with slow speed. This system named as 'Multi-Motion' has ever been used in NHK live broadcasting for 1995 World Gymnastics Championships held in Japan.

• Proceedings of the Korean Society of Disaster Information Conference
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• 2023.11a
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• pp.93-94
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• 2023

해체공사는 작업의 특성상 단기간에 이루어지며, 해체공사 현장에 투입되는 근로자는 일용직 근로자가 대부분으로 안전사고의 비율이 높다. 사업장 위험성 평가에 관한 지침에는 위험성 평가시 근로자를 참여토록 하고 있으나 해체현장의 특성상 근로자가 참여한다고 하여도 위험요소를 파악할 역량이 부족할 따름이다. 또한 기존의 해체공사 안전관리 매뉴얼은 구조안전성 확보를 위한 매뉴얼로 해체 근로자의 안전을 위한 매뉴얼은 없는 실정으로, 근로자의 안전을 확보하기 위한 위험성 평가 매뉴얼이 요구되고 있다. 이에 본 연구에서는 건설공사 안전관리 종합정보망(CSI)의 해체 및 철거공사의 사고사례를 분석하였으며, 해체 및 철거 사고시 발생한 주요 위험요소를 도출하여 작업 공종별로 유해·위험요인의 파악을 손 쉽게 할 수 있도록 하였다. 또한 해체 현장 규모에 따라 대규모 현장은 빈도·강도법, 중·소규모 현장은 체크리스트법을 활용하여 위험성을 결정하고 감소대책을 수립할 수 있도록 매뉴얼을 구성하였다. 잔여 위험에 대해서는 관리카드를 만들어 해체공사 완료시까지 관리하도록 하였다.

• 한국생태학회:학술대회논문집
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• 1998.05a
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• pp.65.2-65.2
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• 1998

• Korean Journal of Construction Engineering and Management
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• v.14 no.5
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• pp.103-112
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• 2013

After 1990s, the influence of construction industry has been decreased on national economy and construction business condition has been changed on economic recession and boom repeatedly. Larger fluctuation of business condition makes a forecast of it to be more difficult. Uncertainty in business prediction results in damages on construction companies and stakeholders. Therefore, study on forecasting a construction business is very important. This study suggests the Construction Industry Production Index(CIPI) to predict a construction business in consider of temperature effects. The results show that construction business is much influenced by temperature effects certainly and GDP. With the CBFM, this study examines CIPI for 2013 with two scenarios: 1)with GDP growth rate of 3.5% 2)with GDP growth rate of 2.4%. Thus, CIPI would be used as the economic state index to display the construction business conditions. Also, CIPI will be utilized as basic methodology in the impact of climate change in the construction industry.

• Journal of the Economic Geographical Society of Korea
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• v.24 no.3
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• pp.283-299
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• 2021

As the intelligent revolution triggered by digital technology, unmanned vehicles such as self-driving cars, robots, and drones appeared, which brought about innovative changes in the industry. Gyeonggi Local government has established both an ordinance and a basic plan regarding unmanned vehicles. It is time to prepare a data-based policy by understanding the current state of the unmanned vehicle industry in the province. As a result of the survey, the unmanned vehicle industry in Gyeonggi Province is 25% of the nationwide, and more than 88% is concentrated in the southern part of Gyeonggi Province. The land sector such as the robot and autonomous vehicles are focused on 71.4% and the aviation sector such as drones are 26.7%. However, unmanned vehicle companies in Gyeonggi-do are mostly small-sized businesses with less than 10 years of experience and are in the stage of introduction and growth level. They have a plan to improve technology through continuous R&D by hiring human resources. Therefore, Gyeonggi-do needs to consider policy support for sustainable growth of start-up and small enterprises and for fostering professional manpower and technical skills as well as for establishing an unmanned vehicle industry network to create, share, and spread knowledge.

• The Korean Journal of Mycology
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• v.50 no.2
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• pp.93-102
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• 2022

A new cultivar of oak mushroom Lentinula edodes 'Jadam' was bred from monokaryotic strains of 'Hwadam-18' and 'GMLE36295-22'. The optimum temperature for mycelial growth of 'Jadam' on potato dextrose agar was 22-25℃. Total cultivation period of the new cultivar, from inoculation to its first harvest, was 122-124 days, shorter to that of the control cultivar 'Hwadam'. Total yield of 'Jadam' was 623.8 g per 3 kg substrate, and is higher than that of 'Hwadam' (455.2 g). In the fruiting body of the new cultivar, the stipe was shorter and thinner than those of 'Hwadam'. A farmhouse field test showed that the period of mycelial growth and browning was shorter than that of control cultivar 'L808'. The total yield for 2 flush was 543.3 g for 'Jadam'. It was similar to the 585.3 g of the control cultivar. Therefore, the new cultivar 'Jadam' could be a substitute for 'L808' in the field of farms.

• Journal of Mushroom
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• v.21 no.3
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• pp.154-159
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• 2023

A new spore-less cultivar Lentinula edodes 'Daedam' was bred from monokaryotic strains of 'LE15401-24' and 'LE192118-10'. The optimum temperature for mycelial growth of 'Daedam' on potato dextrose agar was 22~25℃. Total cultivation period of the new cultivar, from inoculation to its first harvest, was 134 days, similar to that of the control cultivar 'Hwadam'. Total yield of 'Daedam' was 222g per 3kg substrate, and was lower than that of control cultivar(266.0g). The fruiting body of 'Daedam' had a thick and small pileus and a longer stem compare to control cultivar. As a result of a analyzing the productivity of 'Daedam' on the different substrate types, the biological efficiency was 26.7% in the 1.2kg cylindrical substrate(CS), which was higher than that of the 3kg rod-type substrate(RS). 'Daedam' had a similar yield compared to 'Hanacham' in first fruiting body production, but the cultivation period was 40 days shorter. Therefore, 'Daedam' can only harvest fruiting bodies once, it is thought that it can be used as spore-less oak mushroom cultivar for short-term cultivation instead of 'Hanacham' in mushroom farms.

• Journal of Mushroom
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• v.21 no.3
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• pp.145-149
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• 2023

This study was conducted to reduce the phenomenon of the biased cultivation of certain mushroom varieties and to develop a competitive variety of Pleurotus nebrodensis. We have collected and tested characteristics of genetic resources from domestic and overseas varieties since 2015. We bred the domestic variety 'Boram'. The optimal temperature was 26~29℃ for mycelial growth and 15~18℃ for fruit body growth temperature. This variety was similar to the control variety (Uram) in terms of the number of cultivation days and yield per bottle. The shape of the new cultivar was round, whereas that of the control group was spatula-like. The yield was 181.1 g/bottle, which was statistically similar to that of the control variety. When incubating the parent and control varieties, the replacement line was clear. Moreover, polymerase chain reaction analysis of mycelial DNA resulted in different band patterns between the parent and control varieties, confirming the hybrid species.