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      • KCI등재

        再談漢語疑問詞的敎學語法排序

        朴庸鎭 중국어문학연구회 2009 중국어문학논집 Vol.0 No.58

        우리는 『中國語文學論集』(2003, 2004, 2008a、b)에서 중국어 부사 ‘才’와 ‘의문사’의 교육문법순서배열에 대해서 토론하였다. 분석 방법으로 보면, ‘才’는 대비분석과 난이도 가설을 사용하였고, ‘의문사’분석은 대비분석과 난이도 그리고 빈도 가설을 사용하였다. 이 분석 과정 중에 우리는 몇 가지 의문점이 생겼다. 첫째, 우리가 사용하는 이론 구조는 당대 학술계에서 인정하는 연구 방법일까. 둘째, 어떻게 분석하여야 가장 완벽한 교육문법 순서배열을 설계할 수 있을까. 셋째, 분석과정은 객관적인가. 본문은 이 세 가지 의문점 중에서 두 번째와 세 번째 논점에 대하여 새로운 연구 방법과 평가 방법을 소개하고, 이를 중국어 의문사(2008a、b) 분석에 다시 적용하고자 한다. 분석 후, 우리는 박용진(2008a、b)과 본 논문의 분석에 있어 작은 차이를 보일 뿐, 상당 부분 동일하다는 것을 발견하였다. 그렇지만, 새로운 연구 방법과 평가 방법을 접목한 본 논문은 박용진(2008a、b)의 분석보다 더욱 객관적이고 과학적이며 또 설득력을 더 하였음을 인정하지 않을 수 없다.

      • Cr添加가 球狀黑鉛鑄鐵의 機械的 性質과 組織에 미치는 影響

        金榮注,朴龍鎭 弘益大學校 科學技術硏究所 1993 科學技術硏究論文集 Vol.3 No.-

        In this study, as the necessity of thin section and high toughness of Spheroidal Graphite Cast Iron increases, the effect of Cr addition and casting thickness of mechanical properties and structure of Spheroidal Graphite Cast Iron have been investigated. The composition of Cr has been increased from none to Cr 0.7wt%. The thickness of Cast Iron prepared for mechanical properties and structure examinations are ø13mm, ø10mm and ø6mm. The microstructure of Spheroidal Graphite Cast Iron has been observerd by Optical Microscope. The following results has been obtained. As the casting thickness increase, the size of Spheroidal Graphite becomes larger, and the number of that becomes smaller. This phenomena is due to the variation of cooling speed. The size and number of Spheroidal Graphite decrease with Cr content. The amount of ferrite reduced by increasing Cr content. The tensile strength shows maximum value at Cr 0.5wt% for ø10mm, ø13mm specimens, and at Cr 0.4wt% for ø6mm. Further increase of Cr content drastically reduced the tensile strength of cast iron because of the formation of carbides, such as Cr??C? Cr?-C₃ and Cr₄C. With Cr content, hardness has been continuously increased but elongation has been gradually decreased.

      • KCI등재

        Subchondral Bone Restoration of Supra-acetabular Brown Tumor Secondary to Parathyroid Carcinoma: A Case Report

        박용진,윤택림,박경순,고지욱 대한고관절학회 2018 Hip and Pelvis Vol.30 No.2

        The causes of osteolytic lesions found in radiological examinations are not quite certain. Therefore, to determine the appropriate treatment method, various approaches and analyzes are required to find the real cause. Hyperparathyroidism is one of the diseases which forms osteolytic bone lesions so-called brown tumor. A 55-year-old woman who had painful osteolytic bone lesions in both hip joint areas was diagnosed as parathyroid carcinoma after serial work-up. She underwent parathyroidectomy and follow-up imaging showed a decrease in brown tumor size and bone consolidation in the subchondral bone destruction area. Proper evaluation of osteolytic bone lesions helps to avoid unnecessary operative treatments and the first choice for the treatment of osteolytic bone lesions caused by parathyroid carcinoma is parathyroidectomy.

      • KCI우수등재

        가로수 식재체계 수립

        박용진,김태경 한국조경학회 2000 韓國造景學會誌 Vol.28 No.5

        This research is to propose a rational criterion of the selection and the management f the roadside trees, and to establish the planting design and system with the objective of improving the roadside environment. All of the roadside trees in each objective courses in Kangnung, and the soil disposition, hardness of the soil in the planting areas have been investigated. Also, we have surveyed the kinds of the trees which kandgnung inhabitants want. The conclusion is as follows Most of roadsides have trees, but they need the introduction of shrubs or ground covering plants according to the locations and the environmental conditions. We have selected nineteen species in regard to the roadside tree criterion and the growing conditions living in Kangnung. It is desirable that we make banding style planting space between each roadside tree to improve the low ratio of green coverage. We have found out that Ligustrum obtusifolium, Buxus micropnylla, Euonymus japonica, Rhododendron schlippenbachii, Phyllostachys nigro and Rosa rugosa, ect. are suitable. In order to soften and weaken the rigidity of the hard substances on a paved roadside, the climbers such as the perennial herbaceous flowering and hedera rhombea should be preferred rather than annual herbaceous flowering because of curtailment of expenditure. To posses a systematical greenery frame in kangnung, we have planned a planting design system that would expand the greenery space every year. Moreover, we have to make a plan to overcome space restrictions. We have established a flexible plan considering the roadside conditions and the improved standard planting methods with an ultimate aim to create a special roadside view.

      • M.B.C.에 依한 鑄物用銑鐵의 製造에 關한 硏究 [Ⅱ]

        朴龍鎭 弘益大學校 1972 弘大論叢 Vol.4 No.-

        This paper is dealt with some of the charactristics which arise from the Metallurgical Blast Cupola (M.B.C) process in making pig iron with all steel lathe chip and Korean anthracite. In the process of producing pig iron under a high pressure and acidic condition by the M.B.C. process, the results obtained are as follows: 1. Carbon recovery was 11.1% under an optimal condition of the experiment. 2. It was possible to make pig iron with carbon content between 3.18 and 3.60% at the experimental temperature of 1,430℃. 3. In adequate amount of bed anthracite in cupola and a rapid change in blast pressure have brought about a slipping phenomenon so that the decrease in the temperature of melted pig iron was induced resulting in lower content of carbon.

      • KCI등재

        차종별 교통류 모형을 이용한 편도 2차로 고속도로 공사구간 용량 산정

        박용진,김종식 한국도로학회 2011 한국도로학회논문집 Vol.13 No.3

        The purpose of this study is to estimate the capacity of two-lane freeway work zone blocking one lane using traffic flow models of each vehicle-type. Firstly, three traffic flow models of three different vehicle-types were developed using the data collected from each at the beginning and the ending point of the work zone. For each model, the maximum flow rate of three vehicle-types were calculated respectively. Maximum flow rate at the work zone was recalculated using passenger car equivalent value and percentage of vehicle-type. Secondly, traffic flow model using passenger car equivalent volume data was developed using the data collected from each at the beginning and the ending point of the work zone. Maximum flow rate for the work zone was calculated along. Two values of maximum flow rates through the work zone were compared and evaluated as the capacity of the work zone. This study found that the maximum flow rate of the work zone at the beginning point was less than that at the ending point because of impedance such as lane changing behaviors before entering the work zone. The capacity of two-lane freeway work zone blocking one lane was estimated 1,800pcphpl. 본 연구의 목적은 차종별 교통류 모형을 이용한 편도 2차로 고속도로 공사구간의 용량 값을 산정하는 것이다. 공사구간의교통류 모형은 공사구간의 유입부 및 유출부를 대상으로 차종별 모형과 승용차 환산계수를 적용한 전체 차량에 대한 모형으로도출하였다. 차종별 모형에서 산정된 최대교통류율은 승용차환산계수 및 중차량 비율을 적용하여 공사구간의 용량 값으로 전환하였다. 차종별 모형의 유입부 및 유출부 최대교통류율 값은 각각 1,845pcphpl과 1,884pcphpl로 산정되었으며 차량 전체를 대상으로 한 모형의 최대교통류율은 차종별 결과보다 높게 분석되었다. 모형의 비교 검증을 위하여 최대밀도에 따른 거리차두간격을 적용하였다. 공사구간의 용량은 공사구간의 흐름이 안정된 유출부 용량보다 공사구간 진입을 위한 차선 변경 등으로 교통흐름이 원활하지 못한 유입부 용량에 좌우되므로 유입부 교통류 모형의 최대교통류율 값인 1,800pcphpl을 편도 2차로 고속도로 공사구간 용량 값으로 산정하였다.

      • 알루미늄--鋼纖維 複合材料의 强度에 미치는 鋼纖維 方向性에 關한 硏究

        金錫胤,金政根,朴龍鎭 弘益大學校 1977 弘大論叢 Vol.9 No.-

        Strength of aluminium-steel fiber composite materials was studied with various test pieces prepared from aluminium metal and steel wiers. The study was aimed to investigate directional effects of fiber alignment in the composite materials and to elucidate the mechanism of strengthening. Test pieces of three types of fiber alignment i.e. parllel, obligque (45。), vertical to the logitudinal were prepared by aid of specially prepared brass mould. The test results showed that the tensile strength indicated the largest value on the material of parallel orientation as expected. The tensile strength of the test pieces oblique and vertical fiber orientation gave about 95% and 86% to that of parallelly oriented fiber in the test pieces. The cause of the increment in the the tensile strength of the composite materials in which Zinc coated fiber was employed is considered to be attributed to the formation of the diffused layer Zn/Al.

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