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강용식,Yong Shik Kang 대한화학회 1971 대한화학회지 Vol.15 No.6
Catalytic effects of metallic salts on the combustion of diesel fuel oil have been studied. In the case of organometallic salt, the active species are the metallic oxides resulted from combustion of the salts. The oxides act only on the residual solid carbon produced from the fuel oil combustion. The catalytic activity can be explained with the semiconductor theory just as in the case of the gas phase reaction. The chemical rate constant of the combustion of carbon, the soot from diesel fuel oil, is found to be $k_c=1.1{\times}10^4\;exp$ (-16,600/T) below $800^{\circ}K$. By addition of metallic oxides, the rate constant increases remarkably. This work has substantiated the belief that the effect of the metallic salts on the fuel oil combustion can conveniently be studied by checking directly the effect of the corresponding metallic oxide on the soot carbon.
姜容植 大田工業高等專門學校 1969 論文集 Vol.4 No.-
Human being should need appropriate volume to be safe in the closed door of the basement against nuclear bomb as carbonic acid gas increases. In addition to the above the volume of the roomshould be obtained because of the increase of temperature as hours go by. For example, twenty-seven cubic meters of room volume is needed to be free from danger in the closed basement for an hour and the increase of temperature per hour stands 7.4℃. I have come to know that the increase of the persons in the room and the temperature are in proportion to the volume of a room in the viewpoint of natural condition, and that the supply of oxygen and a drop in temperature are required, because too large a room is illogical from the economical view point. In this research paper, I have studied on the increase of carbonic acid gas in the closed basement under the natural condition and possible volume of a room on account of temperature rising.
Vermiculite와 각종 건축재료와의 단열성(斷熱性)에 대한 비교 연구
姜容植,李正熙 大田工業高等專門學校 1969 論文集 Vol.5 No.-
Building and heat have a close connection with eaca other. The latter has a great influence upon making up the surroundings in our daily lives. Drawing up plans for protection against the cold and the hot is a matter of consequence in building. So we must give careful consideration to the choice of matterials for making the wall. For this, by comparing insulation of vermiculite with that of various building materials. thermal conductivity of Vermiculite is 0.05(k cal/m·h·℃), and on the condition of wall Fig 10, K, total heat transmission coefficient, and Q, total transmission calorie are as follows: K = 0.552(K cal/m^2·h·℃) Q = 5.52(K cal/h) Thus Vermiculite, a mineral matter, of which total transmission coefficient is low, is an insulating material never spoiled and deteriorated. Moreover as it is easy for us to purchase the material, Vermiculite is very useful for the wall material.
강용식,김원덕,주미숙 중앙대학교 기술과학연구소 1989 기술과학연구소 논문집 Vol.19 No.-
The silylation of sodium silicate, Water glass, for the preparation of new orqanic matters has been studied through silicic acid from commercial sodium silicate and organic silane. Sodium silicate was acidified by addition of diluted sulfuric acid carefully under prevention of gelation, and prepared silicic acid solution was extracted by tetrahydrofurane. finally trimethylsilylates was prepared by reaction of the silici acid and trimetylchlorosilane. The authers have investigated properties of the silylates through IR, ¹HNMR spectra, X-Ray diffraction, thermal analysis and gel chromatography. And it was clear that the molecular weight of the trimethylpolysiloxane 1000 to 1500, the decomposition temperature 390 to 410℃ and the melting point 80 to 150℃.
할로겐화은 유제의 사진특성에 미치는 Hydroxymethane Sulfonic Acid Sodium Salt와 5,5-Dimethylhydantoin 의 첨가효과
강용식,강태성 중앙대학교 기술과학연구소 1987 기술과학연구소 논문집 Vol.17 No.-
In order to increase the sensitivity of the photographic emulsion, one of the chemical sensitizers hydroxymethane sulfonic acid sodium salt (HMS) was applied through the chemical ripening process and following four types of emulsions were prepared. Their grain sizes were determined through the electron microscope. The ranges of average grain sizes were 0.05-0.40㎛ for the silver chlorobromide emulsion of low sensitivity 0.10-0.45㎛ for the silver chlorobromide emulsion of medium sensitivity, 0.60-1.05㎛ for the silver iodobromide emulsion of high sensitivity, and 0.90-1.55㎛ for the ammonical silver iodobromide emulsion of high sensitivity. Through the reduction sensitization with HMS, they showed significant sensitivity enhancement by the increment of HMS concentration above pH 5.5 and pBr 3.0. Required sensitivity was obtained above pH 6.2 and pbr 3.3, when sulfur and gold sensitization were applied. Fog formed along the reduction sensitization was successfully prevented by