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      • 都心 住居機能의 衰退意味와 要因에 관한 硏究

        박용관,유창균 朝鮮大學校 建設技術硏究所 1998 建設技術硏究 Vol.18 No.2

        This study is to secure the necessity and validity of recovering the urban dwelling function by examining and systematizing the meaning and factors of degeneration of urban dwelling functions and the concrete results of this study are as follows. 1. It is frequent that the degeneration of urban dwelling functions is interpreted as a part of temporarily necessary phenomena resulted in the stage of urban growth, but in the light of the aspects and seriousness of problems resulted from this, it is considered that the preparation of alternative for recovering its functions is very urgent. 2. The degeneration of urban dwelling functions means the decrease of population residing at urban area and the dispersion of the whole urban population according to the shift of residence and for establishing the index of degeneration, the continuous research and analysis of the current and motif of residential shift in urban area should be conducted on the basis of the understanding of urban spatial structure. 3. The degeneration of urban dwelling functions is resulted by complex effects of various factors, but since the weakening of competitiveness in urban location of housing and the lowering of environmental quality are major causes of the degeneration, the preparation of architectural planning and urban planning alternatives is required for improving this.

      • Indium 添加된 CdS/(p)Si 異種接合 太陽電池의 製造 및 特性에 관한 硏究

        朴鏞寬,金正浩,李載亨,兪榮植 成均館大學校 科學技術硏究所 1995 論文集 Vol.46 No.1

        In this study, the CdS/(p)Si solar cell was fabricated by electron-beam evaporation method, and their properties were investigated. Also the resistivity and optical transmission of CdS thin film were measured. The relation between this results and solar cell characteristics was considered, and came to as follow conclusion. 1. CdS this film is the polycrystalline in direction of (002), and has the hexagonal structure. In proportion to increase of substrate and annealing temperature, the optical band gap, and therefore the photo-transmittance in the absorption edge increases, while conductivity above the critical conditions decreases. 2. In proportion to Indium concentration, the resistivity of CdS thin film is the lowest when Indium concentration is 2[wt%]. In the photo-transmittance for the whole visible light, when the concentration is 2 [wt%], Burstein- Moss shift is the largest. 3. I_SC, V_OC FF, η, display the maximum value when the annealing temperture is at 350[℃]. 4. The characterisitcs of solar cells, that is I_SC V_OC FF, η, fabricated by mixture with In, somewhat more increases than those which is not mixed with. 5. In the optimal conditions the I-V characterisitics of the fabricated CdS/(p)Si solar cells shows as follows. V_OC:450[mV], I_SC:11.5[mA/㎠'], FF:0.475, η:4.92[%]

      • 變壓器의 過渡勵磁電流 豫測法

        朴鏞寬,左宗根 成均館大學校 科學技術硏究所 1986 論文集 Vol.37 No.1

        Accurate modeling of the transformer, including its saturation characteristics, is an important requirement for studying inrush current, overvoltage and ferroresonance conditions. This paper describes a straightforward method of determining the parameters for a standard T-type equivalent circuit representation of the transformer which can be used to predict the inrush current with good accuracy. The method relies on test measurements that can be readily performed on site: there is no need for design data on the transformer. A comparison of the computed waveforms with measured waveforms of the inrush currents of a distribution transformer is used to verify the accuracy of the method.

      • Na_2O-Fe_2O_3-P_2O_5계 유리의 유전특성과 적외선 투과 특성에 관한 연구

        박용관,김종철,연석주 東新大學校 1989 論文集 Vol.10 No.-

        The dielectric properties and infrared transmission properties of the some glass in the system Na_2O-Fe_2O_3-P_2O_5 were studied by changing the melting point. This system contains Na_2 which confers an ionic conductivity on glass and Fe_2O_3 an electronical conductivity. The glass samples were prepared by melting at the glassifying temperature and melting temperature was varied at the 100℃ and 200℃ higher temperature. The dielectric properties was measured over the temperature range 20℃ ∼ 100℃ with changing the frequency from 10^4Hz. The infrared transmission properties were measured by KBr pellet methed.

      • 大學캠퍼스에서의 建築群 構成에 관한 硏究

        박용관,조용준 조선대학교 국토개발연구소 1995 국토개발연구 Vol.15 No.1

        The outdoor space enclosed by buildings in the university campus terminalizes the area formed by it as well as connecting the functions each building has organically, so it induces the various activities needed for information exchange or social life and accepts them. Therefore, this study selects 8 campuses respectively in Korea and Japan and obtains the following results after examining and analyzing the forms of buildings and the structure of the outdoor space enclosed by buildings through the facility layout. 1. The construction of the outdoor space enclosed by buildings is divided into the systematic corresponding type and circumstantial corresponding type. While the systematic corresponding type in the form of building is variously shown as - and L types, Circumstantial Corresponding type shows mostly - and ㅁ type. 2. In the pattern of the outdoor space enclosed by building, the former has mostly the regular construction, but Circumstantial Corresponding type has many irregular constructions. 3. In Korea, the outdoor space enclosed by buildings is scallered and arranged as the independent pattern and has not the organic connection among the outdoor spaces enclosed by buildings, but in Japan they are organically connected and the entire campus makes an outdoor space enclosed by buildings. 4. In the case of Japan, the outdoor space enclosed by buildings is connected hierarchically and organically by the linear or encircling media, but in Korea there is often the maintenance of independence rather than hierarchy or connection.

      • 油中電極間의 Barrier 揷入에 관한 衝擊電壓의 放電特性

        朴鏞寬,盧昌一 成均館大學校 科學技術硏究所 1994 論文集 Vol.45 No.2

        In this paper, the dielectric strength was improved by the insulating barrier which was interposed and moved in position, between three typical electrode systems (sphere-sphere, sphereplate, and rod-plate) in oil insulations. The respective electric field form was analyzed by using the two dimensional finite element methods and compared the above analized results with experimental results discharge characteri8stics for the positive impulse breakdown voltage. Conculsions obtained from theses analyses and comparisons were as follows; 1. The effect of barrier systems was most effective in the non-uniform electric field form 2. It was found that the dielectric strength rises when a barrier is located to the high voltage source electrode. 3. The results of analysis of electric field form were higher than the experimental dielectric strength, but the latter was found to have close relation with the distribution of electric field form.

      • SnO₂/Si 移種接合 太陽電池 特性에 관한 硏究

        朴鏞寬,李載亨,金正浩,兪榮植 成均館大學校 科學技術硏究所 1994 論文集 Vol.45 No.1

        In this study, the SnO_2/(n)Si solar cell was fabricated by electron beam evaporation method, and their properties were investigated. Also the resistivity and optical transmission of SnO_2 thin film were measured, and the relations between this results and solar cell characteristics were considered, and the following conclusions were obtained. (1) In proportion to increase of substrate and annealing temperature, the conductivity of SnO_2 thin film becomes increasing, but its optical transmission decreases because of increasing optical absorption of free electrons in the thin film. (2) Solar cell characteristics were improved by annealing. But the SnO_2/Si solar cell was deteriorted by heat treatment above 500℃. (3) The optimal outputs of SnO_2/Si solar cell through above investigation were V_sc: 350mV, I_∝: mA/㎠, FF : 0.41, η=4.74%

      • SnO_2 薄膜 濕度 Sensor에 관한 硏究

        朴鏞寬 成均館大學校 科學技術硏究所 1983 論文集 Vol.34 No.1

        The electrical resistance type humidity sensor was prepared according to the following processes: evaporating SnO_2 powder (99.9999% purity)on Alumina substrate under the high vaccum, and then evaporating the comb-shaped electrode on it. Various measurements were made including the change of the electrical resistance and the characteristics of the hysterisis with the relative humidity, the dependances of the electrical resistance upon the power source frequency and temperature, and the electrical resistance characteristics of the time responce under the sudden variation of relative humidity. From these experimental results, the relative humidity characteristics of the humidity sensor were studied.

      • 「ネットワ一ク」における人間に開する가정

        朴容寬 평택대학교 1999 論文集 Vol.12 No.-

        從來,組織の中での人間に關しては合理的·經濟人,自己實現人,複雜人などの理解があり,それぞれ異なる管理戰略ないし動機づけ理論が論じられてきた. いずれの가說もマネ-ジャ-が組織內の人 を동かせるとき,その人間をいかに理解していかなる手段を選ぶのがどいう理論にすぎなかつたといえる.それらの가說の中で,組織メンバ-は自覺的に自己を吟味し,反省していくのはあまり期待されていなかつた.ごれに對して,今日勃興しているネツトワ-クでは人間하コントロ-ルの對象ではない. ネツトワ-クでは人間は組織の目的達成のためのツ-ルでなく.自らの價値の實現,人格の成長,自己實現などを求めていくのである.他者を自我中心的に利用するのでなく.互いの目的を達成するにめに協力しあい.助け合い,互いに成熟していくのである.相手は戰なる能力や機能の擔い手でなく,一人の人格者であり,コラボレ-タ-である.それゆえ,自分の自的達成,價値實現などは相手のそれと連なるのである.互いに助け合い,ともに自己實現していくのである.本稿ではごのような人 を「自省人」と呼び,ごの自省人を暗默的に想定する人間に關する가定を 「自省人の가說」と?する.

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