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신정식,김재웅,나석주 대한용접접합학회 1991 대한용접·접합학회지 Vol.9 No.3
An automatic welding system was constructed with a personal computer to capture the welding data in addition to vision seam tracking for the gas metal arc welding process. The monitoring of welding signals is composed of the acquisition of welding voltage and current, obtained by using two differential amplifiers and A/D converters, and processing of the measured data. Using interrupt handing circuit for time sharing, two jobs of seam tracking and monitoring were performed at the required sampling time. Relations between welding signals and various welding circumstances were analyzed from the experimental results.
이호준,김종홍,배병호,박문수,전영문,강재구,신정식 建國大學校基礎科學硏究所 1997 理學論集 Vol.22 No.-
전라남도 고흥군 소재 팔영산 (608.6 m) 일대의 삼림군락에 대한 색생조사를 1993년 10월부터 1995년 7월까지 실시하였다. 조사한 자료는 Z-M 방식에 의해 종조성표를 작성하였다. 이에 따라 삼림군락은 신갈나무군락, 졸참나무군락, 굴참나무군락, 서어나무군락, 소나무군락등 5 개 군락으로 분류되었다. 입지와 환경과의 유기적 관계를 조사하기 위해 토양을 분석한 결과, 신갈나무군락은 토양의 비옥도가 높은 산의 능선 부위에 집중 분포하였으며, 굴참나무군락과 소나무군락은 토양의 비옥도가 낮고 비교적 건조한 고도 400 m 이하 지역에 주로 군락을 형성하고 있었다. 또한 졸참나무군락은 고도 300 - 550 m 이내에서 부분적으로 나타났으며, 서어나무군락은 토양의 비옥도가 양호한 고도 300 - 550 m 사이의 골짜기 주변에 국지적으로 분포하였다. 팔영산 삼림식생의 특징은 상록활엽수림이 형성될 수 있는 지역이나 후박나무, 동백나무, 사스레피나무 등의 몇몇 종을 제외하고는 상록활엽수의 분포를 확인할 수 없었으며, 일부 식재림을 제외한 대부분의 지역이 낙엽활엽수와 소나무의 혼효림으로 구성되어 있었다. The phytosociological study forest vegetation on Mt. Palyoung (608.6 m) was investigated from October 1993 to July 1995 in Koheug-Gun, Cheonnam province. According to Z-M method, the floristic composition table of the forest vegetation was divided into five community as follows; Quercus mongolica community, Quercus serrata community, Quercus variabilis community, Pinus densiflora community, Carpinus laxiflora community. The soil was analyzed to investigated the soil conditions and soil fertility. As a result, the organic matters which showing soil fertility were found to be low Quercus variabilis and Pinus densiflora community at comparatively xerophic conditions, below 400 m altitude, while they were increased in Quercus mongolica community on mountain ridge, and that Quercus serrata community was appeared 300-550 m altitude around mountain stream to moderate soilfertility. The forest vegetation of Mt. Palyoung area unconfirmed capable of evergreen broad-leaved forest, but appeared to Machilus thunbergii, Camellia japonica and Eurya japonica species etc. On the other hand, surveyed site's vegetation was distributed mixed forest of deciduous leaved forest and Pinus desiflora, except for some afforestation.
신정식,정영철,김종홍 순천대학교 기초과학연구소 1995 基礎科學硏究誌 Vol.6 No.-
This investigation was to elucidate the flora of southwest region in Mt. Chiri. Plants were collected from May 1993 to September 1994 through 5 research routes. Vascular plants of this region were 381 kinds belong to 4 classes, 33 orders, 88 families, 234 genera, 325 species, 50 varieties and 6 forma. Quercus serrata, Carpinus tschonoskii and Carpinus laxiflora were dominant plant communities in the Piagol valley; Quercus variabilis and Quercus serrata were dominant plant communities in the Munsuri valley; Rhododendron yedoense, Pinus densiflora were dominant plant communies in the Chonunsa valley; and Carpinus laxiflorae was dominant plant community in the Hwaomsa valley. Analysis tables were made to know the distributional, morphological and phenological characteristics of Mt. Chiri flora. Morphological characteristics of the flora were : dicotyledon (77.1%), deciduous (92.1%), perennial (82.7%), herb (63.5%), white color perianth (23.4%), May-blooming (40.4%), two months blooming duration (55.5%).