덩굴장치의 가지유인시기 및 각도가 생육 및 개발에 미치는 영향

권진오,최상태,김용수 한국조경학회 1988 韓國造景學會誌 Vol.16 No.2

덩굴장미의 배식 및 관리에 있어서 용술에 적합한 사용과 관성가치의 증가를 목적으로 생육형별로 구분하여 가지의 유인시기 및 유인각도가 생장과 개화에 미치는 영향을 실험하였는바 얻은 결과는 다음과 같다. 1. 완전만성형, 반만선형 그리고 관목형에서, 가지를 신장생장중에 수평에 가깝게 유인할수록 상부와 하부에서 아의 크기 차이는 감소하였고 외형은 장관형에 가까워지며, 아의 발육은 충실하게 되었다. 2. 신장생장중에 유인한 가지의 직경은 생육형에 관계없이, 수평으로 유인하였을 때 상부와 하부의 직경차이가 감소하여 굵기가 균일하게 되었다. 3. 가지전체의 맹아율 및 개화율을 증가시키기 위해서는 완전만성형의 경선 유인시기에 관계없이 수평에 가깝게 유인할수록 가지의 하부까지 고르게 이루어진다. 4. 반만성형에서는 가지의 신장생장중 수평으로 유인하여야만 하부까지 맹아.개화시킬 수 있고 신장생장이 완료된 후에는 유인에 의한 효과가 없었다. 이러한 현상에 의해 개화 및 맹아율의 증가는 정아우세의 타파와 함께 아의 유실도에 의해서도 영향을 받는 것으로 사료된다. This study was to obtain effect of stem leading time and angles on the growing and flowering in climbing rose. The results were as follows : In the rambler type, climber type and pillar type, differences of bud size were decreased between upper ports and lower parts as leading angles were close to the horizon. And bud type was like a long-egg shape. regardless of growing type, differences of stets diameter between upper parts and lower parts were decreased when the angles were leaded horizon. In order to increase rate of shooting and flowering, regardless of leading time, rambler type was shooted in a short period and flowered evenly, from upper to lower parts of stem as leading angles were horizon. But in the case of 45$^{\circ}$, the rate of lower parts was nearly zero. In climber type, shooting and flowering was only happened to the lower parts of stem when leaded during growth stage according to leaded horizon. These phenomena are supposed that shooting and flowering rate are influenced by not only apical dominance but degree of bud growth. Meanwhile, pillar type was shooted and flowered evenly to lower parts when the stem was leaded during growth stage or not leaded completely. But in creeper type, there was no connection with the leading. Therefore, this type had better not leaded. Length of flowering stem, regardless of growing type, was equaled when leaded during growth stage according to leaded horizon.

터빈 베이싱의 균열성장 수명평가 방법의 연구 ( A Study on Method of Life Assessment of Turbine Casing )

권진오,윤기봉,백운봉,이해무 대한기계학회 1997 대한기계학회 춘추학술대회 Vol.- No.-

우리에게 어울리는 숲은?

권진오 숲과 문화 연구회 2004 숲과 문화 Vol.13 No.2

Urban Forest Monitoring in Korea since 1991: Case Study on Daegu Metropolitan City

권진오,조현제,최명섭,박찬열,성주한,조재형,김선희,박종균,오정학 한국산림과학회 2006 한국산림과학회지 Vol.95 No.5

To have better urban forests in future we are focusing on two major issues like other countries.How we could have more urban forest-quantitative approach-against the expanding of urbanization, andhow we could produce beter urban forest-qualitative approach-to give a chance in contact with beternature for urban people. Prime surveys on urban forests have been caried out in 6 major cities since 1991,and the city of Daegu which is located on the east southern area of Korea have been case studied forqualitative approaches during last 3 years. Major species of the remnant forests were Pinus densiflora,Pinus rigida, Pinus thunbergi and Robinia pseudoacacia. Approximately 20% of the surveyed forests werelost their structure as forests caused by illegal farming, facilities and as the bare ground by excesivedata of monitoring of birds, we found that wooded parkways and woodland squares had more species thanstreet tree areas. Nests were found mainly on the branch of Zelkova serrata, Pinus densiflora and Quercusmyrsinaefolia. The size of urban forests mainly determined the species richness of birds. According to theoxygen output and carbon input by photosynthesis measurement, the capability was in order of Platanusoccidentalis, Zelkova serata and Ginko biloba. Air conditioning effects of trees through transpirationmeasurement was found and the quality of forests also related to the reducing of urban heat-island.

0.5Cr-0.5Mo-0.25V 주조강의 크리이프-피로 균열성장 거동 모델링

권진오,윤기봉,이해무 대한금속재료학회(대한금속학회) 2000 대한금속·재료학회지 Vol.38 No.2

Turbine casings used in fossil power plants are typical thick-section components serviced under high-temperature, high-pressure conditions. Hence, there components experiences fatigue damage due to thermal stress during operational transients as well as creep damage during steady operation. Cracks of turbine casing usually propagate by creep and fatigue. In this study, creep-fatigue crack growth tests were carried out using 0.5Cr-0.5Mo-0.25V casing steel taken from a retired turbine casing. The crack growth rate due to creep was characterized by the C_t parameter and that due to fatigue was characterized by ΔK according to well-known Paris Law. From the experimental results, metals for creep-fatigue crack growth behavior of 0.5Cr-0.5Mo-0.25V casting steel were investigated based on various material constitutive laws. The proposed relation between crack growth rate and fracture parameters such as (C_t)_(avg), ΔK can be used in predicting residual life of turbine casings.

두개의 탐촉자를 사용한 등방성 균일 고체의 초음파 속도 및 두께 동시 측정법

이정기,김영환,권진오 韓國非破壞檢査學會 1999 한국비파괴검사학회지 Vol.19 No.5

시험체의 두께나 초음파 속도를 측정하기 위해서 초음파 펄스-에코법이 널리 사용되고 있다. 초음파 속도를 결정하기 위해서는 초음파 송수신 장치를 포함한 오실로스코우프와 같은 초음파 측정 장치를 사용하여 시험편에서의 초음파 진행 시간을 측정하고, 초음파 진행 거리에 해당하는 시험편의 두께를 버어니어 캘리퍼스 또는 마이크로미터와 같은 길이 측정 도구를 사용하여 측정한다. 그리고 초음파를 이용하여 시험편의 두께를 측정할 때에는 초음파 속도를 알고 있는 대비 시험편으로 기준을 설정하여야 한다. 본 연구에서는, 대비 시험편 없이 재료의 두께와 초음파 속도를 동시에 구하는 방법을 제시하었다. 재질과 두께를 달리한 여러 시험편에서 측정된 초음파 속도와 두께가 기존의 방법에 의해 측정한 값과 잘 일치하였다. Ultrasonic pulse-echo methods measuring the transit time through specimens have been widely used in determination of ultrasonic velocity and thickness of specimens. Usually, to determine the velocity of the ultrasonic, the transit time of the ultrasonic pulse through specimen is measured by using the ultrasonic measuring equipment such as the oscilloscope including ultrasonic pulser/receiver and the thickness of the specimen is measured by using the length measuring instrument such as micrometer or vernier calipers etc., i.e. each parameter is measured by using each measuring method. In the case of the measuring the thickness of a specimen by using the ultrasonics, the ultrasonic equipments, which measure the thickness such as the ultrasonic thickness gauge must by calibrated by using the reference block of which the ultrasonic velocity is known beforehand. In the present work, we proposed a new method for simultaneous measurement of ultrasonic velocity and thickness without reference blocks. Experimental results for several specimens show that proposed method have good agreements with those by traditional ultrasonic method.

마을숲의 분포 위치와 지형적 공간특성 유형화 방안 -경북 의성, 전북 진안 및 전남 함평지역을 대상으로-

권진오 ( Jin O Kwon ),오정학 ( Jeong Hak Oh ),이정연 ( Jeong Youn Lee ),박찬열 ( Chan Ryul Park ),최명섭 ( Myoung Sub Choi ) 한국지리정보학회 2008 한국지리정보학회지 Vol.11 No.4

전통적으로 마을에 인접하여 인위적으로 조성되거나 관리 및 이용되어온 한국의 전통마을숲은 그 역사가 6-7세기까지 거슬러 올라간다. 마을숲 조성의 배경은 흔히 주변의 언덕, 물길과 바람통로 등 마을주변 자연환경과 관련되는 것으로 전해진다, 정착한 마을과 조성된 마을숲간의 위치관계를 지형적 유형으로 특징을 파악하고, 이를 바탕으로 「마을숲」이 「주체인 마을」의 생활환경에 어떤 기여를 하고 있는지에 대해 검토하였다. 약 500개 이상의 문헌조사와 현장 확인을 통해 전남ㆍ북지역과 경북지역 40개 마을숲에 대해 항공사진, GIS에 의한 3차원분석 등을 통해 마을숲과 마을 주변의 지형적 관계를 유형화 하고 조성 의미를 고찰하였다. 지형적 특징에 따른 유형별 마을숲은 다양한 생태계 및 생활환경개선 효과를 마을에 제공할 것으로 추정되나, 본 연구에서는 대상지의 위치적 특성이 마을 주민의 생활상에 미칠 수 있는 영향과 마을숲 조성의 효과에 기여할 수 있는 역할에 대해 살펴보았다. The MAEULSOOP, Korean traditional village groves have been installed and survived since 7th Century to serve local village dwellers as a community forest. The common sense of their reasons for being is related to the surroundings such as hills, waterways and wind-ways. To understand the roles in a local community, spatial characteristics of distribution, locations and shapes were tested at the two-characterized regions, the Southwestern Flat Region and the Eastern Hilly Region. Approximately more than 500 written evidences related to trees and forests were surveyed, for example village names, folk tales and lists of designated trees for protection. Twenty sites in each region were selected and tested for the spatial analysis. Aerial photographs, DEM and the ArcGIS with a modified AML for slope analysis are applied based on the criteria of the KLCIS(Kwon, 2002; 권진오, 2008). The major factors in the role of the MAEULSOOP based on the spatial character of two regions are; the array and locations of hills for encircling or exposure, locations against corridors and waterway or not, locations of the community to serve, the conservation of energy. Although locations and shapes of the MAEULSOOP are slightly different, it seems that one of the prime roles is what makes their everyday life difficult the most in the community.

도시내 고립(孤立)된 임지(林地)의 식생경관 특성과 비오톱 다양성 평가: 대구광역시 3개 공원을 대상으로

권진오 ( Jin O Kwon ),조현제 ( Hyun Je Cho ),최명섭 ( Myong Sub Choi ),오정학 ( Jeong Hak Oh ) 한국산림과학회 2005 한국산림과학회지 Vol.94 No.6

난대림에서 노루 뿔의 성장과정에 의한 나무 피해 현황

김은미,권진오,김지은,강창완,이치봉,박영규 한국임학회 2012 산림과학 공동학술대회 논문집 Vol.2012 No.-

Photopolymerization of dimethacrylate macromonomers with polymerizable non-acrylate monomers

최영선,권진오 한국고분자학회 2002 한국고분자학회 학술대회 연구논문 초록집 Vol.2002 No.4