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송규석,Cha Hyungki,최인희,Jung Euo Chang,유희수 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.49 No.1
The isotopic composition of trace Yb and Pd in solution phase were determined by adopting laser ablation time-of-flight mass spectrometry and adsorbing samples onto metal plates, such as stainless steel, copper, and molybdenum. Ion signals from the Yb isotopes were observed easily with a reasonable mass resolution for standard solutions of 1 ppb to 1000 ppb. The minimum detectible concentration of Yb using this technique was estimated to be less than 1 ppb. Laser ablation mass spectrometry of the PdCl2 adsorbed onto a copper plate revealed various copper clusters with chloride ions such as, Cu2Cl, Cu3Cl2, Cu4Cl3, Cu2, Cu3, etc. The observation of palladium ion peaks in the laser ablation mass spectra was found to depend on the reaction time between the copper plate and the PdCl2 solution. These clusters were identified as being generated during the laser ablation process, not during the chemical reactions in the solution phase.la
송규석,김경환,이승철,고철균,이재헌,오명도,Song, Kyu-Soek,Kim, Kyung-Hwan,Lee, Seung-Chul,Ko, Chul-Kyun,Lee, Jae-Heon,Oh, Myung-Do 대한기계학회 1999 大韓機械學會論文集B Vol.23 No.7
The electronic refrigerating kimchi jar operates with a low noise because it contains no compressor but it consumes more energy than that of an refrigerator with compressor. In this paper, the heat flow characteristics and cooling performance of an electronic refrigerating kimchi jar are studied by means of experiments. When the storage temperature is kept in a range of $-5.7^{\circ}C$ to $4.1^{\circ}C$. in the case of three ambient temperatures; $12.7^{\circ}C$, $22.3^{\circ}C$ and $32.2^{\circ}C$, the cooling performance of $20{\ell}$ kimchi jar is investigated. The experiments show that the temperature difference that exists between kimchi jar and its ambient provides a measure of the coefficient of performance of kimchi jar. It is also found that ratio of net pumping heat to the heat pumping rate of thermoelectric module is independent of the temperature difference.
송규석,김태형,류재철 충남대학교 자연과학연구소 1993 忠南科學硏究誌 Vol.20 No.2
Now a days, identification scheme over a network is developed with Zero-Knowledge mechanism so that the interaction gives the verifier the intended result and nothing more. This paper compares the processing speed and communication cost and memory needed for storage of five identification schemes in 2^-20, 2^-30, 2^-72 security level : Fiat-Shamir, Micali-Shamir, Cuillou-Quisquater, Schnorr, and Brickell-McCurley.