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전자빔 조사에 의한 PV-Module의 전압-전류 특성
윤정필(Jeong-Phil Yoon),이기제(Gi-Jae Lee),강병복(Byong-Bok Gang),차인수(In-Su Cha),강기환(Gi-Hwan Gang),정명웅(Myung-Woong Jung),유권종(Gwon-Jong Yu) 전력전자학회 2001 전력전자학술대회 논문집 Vol.2001 No.7
Exhaustion and environmental problem are big problem of 21th century is flint energy and the importance of energy to alternate flint energy as being risen is embossed more. Photovoltaic system is occupying big flow along with wind force development among is many substitute energy has shortcoming that energy conversion efficiency falls behind than another thing substitute energy.<br/> This research investigates electron beam to specification energy to Module that was generalized and schematized difference of curved line after existing V-I efficiency characteristic curve and irradiation. And will analyze cause of Module's efficiency addition and subtraction by electron beam investigation.
Phanna Phat,Sameena Sheikh,Jeong Hyeon Lim,Tae Bok Kim,Mun Ho Seong,Hyong Gwon Chon,Yong Kyu Shin,Young Ju Song,Jaejong Noh 한국원예학회 2015 원예과학기술지 Vol.33 No.6
One of the main factors restricting production of triploid seedless watermelon is poor germination due to weak embryos, thick seed coats, and larger air spaces. This study was carried out to investigate the priming effects of different concentrations of chemicals, including hydrogen peroxide (H₂O₂), fusicoccin, and gibberellic acid (GA) on germination and seedling uniformity of triploid watermelon (Citrullus lanatus). Three commercial triploid cultivars, Seedless Plus, Sinus, and Sizero, were pretreated with water and different levels of H₂O₂ (2 and 4%), fusicoccin (FC: 1, 5, and 10 μM), and GA (1, 5, and 10 μM). The present findings helped to find optimal priming conditions for improving germination of triploid watermelon. Treatment with 5 μM GA and hydropriming helped to break seed dormancy, enhancing the final germination percentages in all triploid cultivars and increasing the germination index in Sizero. These seed-priming treatments could be used on large scale for industrial applications. Moreover, hydropriming provides a simple, effective, and costless method to improve seed germination and seedling vigor of Sinus and Sizero varieties.
권오승,정창기,이복영,Gwon, O-Seung,Jeong, Chang-Gi,Lee, Bok-Yeong 한국화재보험협회 2000 방재기술 Vol. No.
The technique detects radiant energy form a flaming fire of fuels contained carbonaceous material can be applied to fast growing fires. This technique applied detectors are ultimately effective when early detecting fire alarm system is required or the smoke and heat detectors can not applied. In Korea Fire regulation, a flame detector should be install in case that the installation height is higher than 20[m], chemical plant, hangar refinery. Therefore it is really necessary that a flame detector has to be developed as soon as possible. With foundation technique of flame detector, ideal sensing element and stable circuit design, a trial UV flame detector is manufactured. The stable and reliable technique of flame detector is established through the repeateed perfomance test and modification. An early detecting fire alarm device is developed through the modification, supplement of the structure and circuit. Results of the R & D for the manufacture of an excellent flame detecting device is carried out with the establishment of technique for the mass production and the qualified manufacturing process.
Phat, Phanna,Sheikh, Sameena,Lim, Jeong Hyeon,Kim, Tae Bok,Seong, Mun Ho,Chon, Hyong Gwon,Shin, Yong Kyu,Song, Young Ju,Noh, Jaejong Korean Society of Horticultural Science 2015 원예과학기술지 Vol.33 No.6
One of the main factors restricting production of triploid seedless watermelon is poor germination due to weak embryos, thick seed coats, and larger air spaces. This study was carried out to investigate the priming effects of different concentrations of chemicals, including hydrogen peroxide ($H_2O_2$), fusicoccin, and gibberellic acid (GA) on germination and seedling uniformity of triploid watermelon (Citrullus lanatus). Three commercial triploid cultivars, Seedless Plus, Sinus, and Sizero, were pretreated with water and different levels of $H_2O_2$ (2 and 4%), fusicoccin (FC: 1, 5, and $10{\mu}M$), and GA (1, 5, and $10{\mu}M$). The present findings helped to find optimal priming conditions for improving germination of triploid watermelon. Treatment with $5{\mu}M$ GA and hydropriming helped to break seed dormancy, enhancing the final germination percentages in all triploid cultivars and increasing the germination index in Sizero. These seed-priming treatments could be used on large scale for industrial applications. Moreover, hydropriming provides a simple, effective, and costless method to improve seed germination and seedling vigor of Sinus and Sizero varieties.
이인복,박근수,최양희,정성권,Lee, In-Bok,Park, Geun-Su,Choe, Yang-Hui,Jeong, Seong-Gwon 한국정보과학회 2001 정보과학회논문지 : 시스템 및 이론 Vol.28 No.11
IP 주소 검색 문제는 IP 주소에 대해서 매칭되는 길이가 가장 IP 접두사를 라이팅 테이블로부터 찾는 것으로서, 인터넷의 고속화에 장애가 되어 왔다. 본 논문에서는 세그먼트 트리라는 자료 구조를 이용하여 이 문제에 대한 새로운 알고리즘을 제시한다. 본 논문에서는 제시하는 알고리즘은 n개의 접두사가 주어졌을 때 Ο(log n) 시간에 IP 접두사를 검색할 수 있다. 또 기존의 알고리즘에서 문제가 되었던 IP 접두사의 삽입과 삭제 연산을 자료 구조 전체를 다시 만들지 않고 효율적으로 처리한다. The IP address lookup problem is to find the longest matching IP prefix for a given IP address from the routing table and has been a central bottleneck in speeding up the Internet. In this paper, we propose a new algorithm for this problem based on the segment tree data structure. Given n IP prefixes, our algorithm can do IP address in Ο(log n) time. It also handles the insertion and deletion of IP prefixes efficiently without rebuilding the total data structure.