보광 광원 종류에 따른 약광기 품종별 오이 접목묘의 생육과 묘소질 및 정식 후 초기 과실 수량

최형은,황소영,윤지혜,유진,황정훈,박은원,구정길,황희성,황승재 (사) 한국생물환경조절학회 2023 생물환경조절학회지 Vol.32 No.4

상품성 있는 오이를 수확하기 위해서는 고품질의 묘를 사용해야 한다. 약광기 온실에서 묘를 생산하는 것은 묘의 생육에필요한 광이 불충분하여 상품성이 저하될 수 있다. 이는 광질이 다른 인공광을 사용한 보광을 통해 약광 조건을 해결하여고품질의 묘를 생산할 수 있다. 본 연구는 약광기에 오이 접목묘의 생육과 묘소질에 적절한 보광 광원을 구명하고자 진행되었다. 오이는 ‘낙원성청장’, ‘신세대’, ‘굿모닝백다다기’ 3가지 품종을 접수로 사용하였다. ‘흑종’ 호박을 대목으로 사용하였다. 종자는 2023년 1월 26일 파종하였고, 2023년 2월 9일에접목하였다. 접목 활착 후 오이묘를 RB LED(red and blue LED, red:blue = 8:2), W LED(white LED, R:G:B = 5:3:2), 그리고 HPS를 광원으로 이용하여 처리하였다. 무처리구를대조구로 사용하였다. 보광은 일출 전 2시간, 일몰 후 2시간 동안 19일간 처리하였다. 경경과 지하부의 생체중과 지하부는보광 광원 처리별 유의적인 차이가 없었다. W LED에서 초장과 하배축장이 짧아졌다. 하지만, 엽장, 엽폭, 엽면적 그리고지상부의 생체중과 건물중은 RB LED에서 가장 높은 값을 나타냈다. 충실도, 순동화율, 그리고 작물생장률과 같은 묘소질은 RB LED와 W LED에서 증가하는 경향을 보였다. 정식 후, 대부분의 생장은 유의적인 차이가 없었지만, 초기 과실 수량은 전체적으로 대조구보다 실험구에서 많았고, RB LED와 W LED에서 과실 수량이 가장 많았다. 결론적으로 약광기 오이접목묘에 RB LED와 W LED를 보광 광원으로 사용하는 것은 묘의 생육, 묘소질, 그리고 초기 과실 수량을 증가시킬 수있다. To harvest marketable cucumbers, high quality seedlings must be used. Producing seedlings in the greenhouse during the low radiation period decreases marketability due to insufficient light for growth. Supplemental lighting with artificial light of different quality can be used to improve low light conditions and produce high quality seedlings. Therefore, this study was conducted to select the appropriate supplemental light sources on the growth and seedling quality of grafted cucumber seedlings during the low radiation period. Three cultivars of cucumber were used as scions for grafting; ‘NakWonSeongcheongjang’, ‘Sinsedae’, and ‘Goodmorning baekdadagi’. Figleaf gourd (Cucurbita ficifolia) ‘Heukjong’ was used as the rootstock. The seeds were sown on January 26, 2023, and grafted on February 9, 2023. After graft-taking, cucumbers in plug trays were treated with RB light-emitting diodes (LED, red and blue LED, red:blue = 8:2), W LED (white LED, R:G:B = 5:3:2), and HPS (high-pressure sodium lamp), respectively. Non-treatment was used as the control. Supplemental lighting was applied 2 hours before sunrise and 2 hours after sunset for 19 days. The stem diameter and fresh and dry weights of roots did not differ significantly by supplemental light sources. The plant height and hypocotyl length were decreased in W LED. However, the leaf length, leaf width, leaf area, and fresh and dry weights of shoots were the highest in the RB LED. Seedling qualities such as crop growth rate, net assimilation rate, and compactness were also increased in RB LED and W LED. After transplanting, most of the growth was not significant, but early yield of cucumber was higher in LED than non-treatment. In conclusion, using RB LED, W LED for supplemental light source during low radiation period in grafted cucumber seedlings improved growth, seedling quality, and early yield of cucumber. Additional key words: compactness, leaf area, light quality, net assimilation rate, plug seedling

진화재연설과 흔적기관에 대한 비판적 분석 활동 연구

최형은,조정일 全南大學校 師範大學 科學敎育硏究所 2007 科學敎育硏究誌 Vol.31 No.1

This study was purposed to find out whether or not college students could distinguish facts from opinions and they could think critically in order to make judgment and evaluation, given challenging arguments and evidence in relation to Haeckel’'s recapitulation theory and the vestigial organs. The subject were 79 students who majored in sciences at a college of education. They read reading materials and completed both a critical analysis table and a questionnaire about the activity itself. The responses were analyzed through the qualitative analysis. When students were asked to identify both the supporting evidence and the challenging evidence about the two theories, many of them did opinions as well as the facts for the evidence. The criteria students listed for evaluating supporting and challenging evidence were accuracy, objectivity, logic, and fact. Students were asked to evaluate the evidence on the ground of the definition of scientific method. The most frequent response in the case of supporting evidence was that the related observations could not be conducted, but only deducted from the theory, and therefore the evidence was not consistent with the definition of scientific method. However, in the case of challenging evidence, students responded that relatively observable evidence was provided; scientists tried to draw a conclusion from several investigations; the challenging evidence was more consistent with the scientific method. Among the general responses for the activities, over 80% students replied positively to items such as stimulating thought, understanding challenging evidence against evolution, the change of view on evolution, the possibility of application of this activity in classrooms as pre-teachers, the interest on the activities, understanding of scientific methods and the curiosity about the evidence. The results suggest that using challenging evidence, teachers could foster students’critical thinking ability, and that evolution theory and evidence could be an effective topic for this kind of activity.

日本 經濟成長의 원인과 문제점 考察

최형은,강미정,조미라,김정순,이언옥,정난주,정혜성 동일어문학회 1988 동일어문연구 Vol.3 No.-

완전한 Fourier Descriptor 의 설계

최형일(H I CHOI) 한국정보과학회 1987 한국정보과학회 학술발표논문집 Vol.14 No.2

Fourier Descriptor 는 형태분석(shape analysis) 분야에서 널리 사용되어 왔다. 본 논문은 먼저 여러 형태의 Fourier Descriptor 들을 살펴 보고 관련된 문제점들을 지적하여 본다. 다음으로 주어진 물체의 closed boundary 를 물체의 위치, 동향(orientation), 그리고 크기에 관하여 표준화하는 방법을 제안하여 본다. 접근 방법은 첫째로 Orientation reference point 와 Partitioning vectors를 정의하고 그들 사이의 관계를 통하여 표준화 설계(normalizing scheme)가 유도된다. 이 방법은 boundary sequence 의 단계정보(phase information)을 잃지 않고, 주어진 sequence를 적절히 밀어 내는(proper shifting) 효과를 가져온다. 더우기 이 방법은 additive noise 에 대하여 든감한 장점이 있다.

대학 브랜드 마케팅이 대학 이미지와 대학 애호도에 미치는 영향에 관한 연구

최형인(Choe, Hyung-Ihn),양현주(Yang, Hyun-Joo) 한국관광레저학회 2012 관광레저연구 Vol.24 No.6

산업장 소음노출 실태에 관한 조사

최형일,정경훈,유현종 조선대학교 환경공해연구소 1999 環境公害硏究 Vol.15 No.2

This research conducted an analysis of instantaneous sound pressure levels by means of classifying 246 processes at 41 workplaces in 11 kinds of industries. This research aims reveal how much noise level of each enterprise are exposed to the environment. This study investigated the distribution of noise induced hearing loss and the instantaneous sound pressure level in the audible frequency band. It also investigated the exposure intensity and characteristic of noise frequency according to the classification of industries. A frequency analysis was conducted on the processes which exceeded 85 dB(A). In addition, it was analyzed that the result of special health checkups and survey the laborers knowledge about noise according to their general characteristics. The rate of wearing protectors was also survey and the following findings were obtained : 1. Among the 246 processes of survey objects, the processes which exceeded 90dB(A), which is the maximum permissible standard for noise exposure designated by the ministry of labor were, 55 places, which corresponded to 22.4%. 2. When the analysis on frequency characteristics of 120 processes which exceeded 85 dB(A) in surveyed industries was conducted, the processes at 20 places, 16.7% showed the highest sound pressure level in the high frequency band which represented higher than 2 kHz. 3. The laborers having opinions that they had noise induced hearing loss were 85, which was 10.6% of 802 laborers who were the survey objects. 4. As for the rate of noise induced hearing according to age and years of service of laborers, the rate of noise induced hearing loss appeared higher as their ages increased and their years of service increased. 5. As for the tendency of recognizing their working environment, 80% of the subjects stated that their working sites were noisy, 51.2% stated that they easily felt tired.

무선국에 대한 실환경 전자파노출량 평가

최형도,정승준,이애경,김기회,전상봉,백정기 한국전자파학회 2020 전자파기술 Vol.31 No.4

[기술해설]컴퓨터 비전의 처리 기술 및 응용

최형일,김명원 한국정보과학회 1994 정보과학회지 Vol.12 No.9

지하 산업장 소음의 환경적 평가에 관한 연구

崔炯一 조선대학교 환경연구소 1992 環境公害硏究 Vol.9 No.-

The purpose of this study has been investigated to understand the propagative character of noise by the machine of industrial places. The surveys were carried out on the industrial places of the basement in Gwang-ju areas from June to Aug. 1991. The results were as follows. 1. By Leq, the strength of community noises were representing as follows : The highest areas was 100dB(A) at W, and the lowest was 70dB(A) at A. 2. The major case of community noises in the industrial places of the basement was found to be compressor (69.8%), ventilator(19.8%).

항공기소음도 조사에 관한 연구 : 광주공항을 중심으로

최형일,정경훈 圓光大學校 環境建設硏究所 2000 環境建設論文集 Vol.9 No.-

This study investigates the measurement and analysis of aircraft noise around Kwang-ju airport the results were as follows: 1. The Flights per day at the Kwangju Airport are about 20 for civilian passenger airliner and about 40 for military plane but since military planes have irregular flight schedules and frequency, their operation is flexible according to military operations and other conditions. 2. the noise of airplane around the populated area of the Airport indicates a serious situation of around 85 WECPNL in Woosan-dong, Songdae-dong, Shinchon-dong. Noise levels are within the expected noise pollution limits in dukheung-dong, Chipyung-dong and Bonduk-dong. 3. Airplane noise in the density populated areas is lower than 80 WECPNL, the expected the noise pollution levels, and that for military planes is higher than that of civilian passenger airliners by 10 WECPNL and that of Woosan district tis the highest of the three districts. 4. While the first type area, with an influence circle of noise over 95 WECPNL, is 1.6㎞×0.4㎞ and the third type area, with an influence from 80 WECPNL to 90 WECPNL, is 4.9㎞×1.1㎞ by the estimated results of the influence contour line of airplane noise, the first type area is 7.3㎞×1.0㎞ and the third type area is 17.6㎞×4.2㎞ according to the influence circle of noise of the military planes, therefore, it can be conclued that the inhabitant's damage from noise caused by the Kwangju Airport is due mostly to the military planes. 5. In general, the frequency spectrum of military planes is around the 1000∼2000Hz band, compared to that of civilian passenger airliners and noise level is higher by over 20dB. This is why the sound of the military plane is much louder and sharper, and it occurs in the frequency band causing sensitive responce upon being heard.