• Proceedings of the Korean Society of Computer Information Conference
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• 2012.07a
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• pp.127-129
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• 2012

본고에서는 시제의 일반적 정의와 상에 관한 개념들을 정리하였다. 시제는 시간을 나타내는 동사의 굴절형'이고 따라서 시제는 문법범주의 하나로서 영어의 경우 현재시제와 과거시제를 인정하고 있다. 시제처럼 상을 문법범주로 인정한다면 그 기술 대상은 당연히 문법적 표현에 국한될 것이고 반대로 문법범주가 아닌 의미범주로 간주하면 문법적 표현은 물론이고 어휘적 표현까지 기술대상이 될 것이다. 따라서 상은 문법범주로서 명시되어 있고 특히 영어의 상은 진행형과 완료형의 두 형태로 국한하고 있다. 이 경우에 진행상(the progressive aspect)은 진행형, 완료상(the perfect aspect)은 완료형을 가리킨다. 이렇듯 시제와 상의 밀접한 관계가 있다 하겠다. 더하여 다양한 영역에서 상에 관한 개념정의가 필요하고 더 많은 연구가 있어야 할 것으로 여겨진다.

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.16 no.2
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• pp.125-130
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• 2003

TiO$_2$ nanoparticles were prepared by photochemical synthesis in the dry toluene. The shape and size of the amorphous TiO$_2$ nanoparticles were investigated by transmission electron microscope. The particle size was varied by the contents of the titanium (IV) isopropoxide in dry toluene. Especially networked TiO$_2$ particles were formed from 40% titanium (IV) isopropoxide solution. The optical absorption spectra, photoluminescence, and PL excitation spectra of TiO$_2$ in dry toluene were obtained. The were shifted to the short wavelength as the contents of TiO$_2$ were increased. PL excitation had the peak at the wavelength regions is which the absorption increased steeply.

• Journal of Environmental Health Sciences
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• v.3 no.1
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• pp.17-21
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• 1976

Korea Parasite Eradication Association alleged in its seasonal report spring/1975 that 36.8 percent of primary, middle and high school students in Seoul area are infected with parasites. For the purpose of a comparative study between the high rate of parasite infection among Korean students and that of parasite eggs attached to vegetables which perform intermediary role in carrying the eggs to human body, such vegetables as lettuce, Korean cabbage, young radish, green onion, cabbage which are on sale at several markets in Seoul city are sampled at random for study. The infection rate of parasitic eggs and larvae on vegetables is studied twice while the detaching mean while removing rate of eggs and larvae in proportion to the number of washing them is studied three times. Every 300 grams of vegetables is taken at random for examination and every one of them is washed with a hard brush and then the kinds of parasite eggs and the ratio of eggs attached to them are studied.

• Proceedings of the KAIS Fall Conference
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• 2000.10a
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• pp.251-254
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• 2000

실험실에서 합성된 phenylthiazole ester 와 p-chlorophenylthiazole ester 그리고 methoxyphenylthiazole ester 각각의 기질에 대한 백혈구 에스터라제의 활성화 감도 등을 검토한 후, 반응 특이성이 좋고 감도가 높은 기질을 선택하여, 요 중에 존재하는 백혈구 수를 간접적으로 측정함은 물론, 반응 단계에 따라 구분이 가능한 요 중 백혈구 측정용 시험지를 개발에 필요한 조건을 최적화 하고자 하였다. 또한, 상품화된 기존의 아미노산 에스테르 기질과 비교 검토하여 그 차이가 발견되면 간편하고 경제성을 고려한 에스테르 기질을 개발함은 물론, 발색성 효소 기질의 결점을 보완하기 위하여 그 개선책을 검토하였다. 그 결과 Thiazole 유도체와 아미노산 유도체로부터 만들어진 새로운 에스테르인 phenyl thiazole 아미노산 에스테르인 methoxyphenyl thiazole 아미노산 에스테르 기질이 기존의 상품과 비교했을 때 그 효능이 우수하였다.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2001.11a
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• pp.517-520
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• 2001

The optical properties of TiO$_2$ thin films dispersed in epoxy film, which were prepared with bits-(4,4'-P-toluenesulfonylacidic isoproplyidene) cycolhexadiol(BTSPC) and UVI 6990 in dry sol-gel process, were investigated. In the case of irradiating UV light on TiO$_2$ thin films, how many nanoparticles of TiO$_2$ are dispersed in epoxy film was investigated by AFM. The absorption peak of the films was showed at 360nm. Squarylium dye was dispersed in TiO$_2$-epoxy film. Photodegration concerned with amount of dye and time of UV light irradiation was investigated. UV light irradiation on the film occurred dramatical photodegration.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2001.11a
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• pp.378-381
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• 2001

The electron drift mobility of poly(4,4'-cyclohexylidenediphenyl carbonate)(PC-Z) doped with 3,5-dimethy-3,5-di-t-butylstilbenequinone(MBSQ), 3,5,3,5-tetra-t-butyl stilbenequinone(TMSQ) and 3,5,3,5-tetra-methyl stilbenequinone(TMSQ) was measured by the time-of-flight technique. The electric field and temperature dependences of the electron drift mobility were discussed with Poole-Frenkel, Arrhenius formulations and non-Arrhenius type of temperature dependence. It was assumed that the hopping sites were Gaussian distribution. Mobility and activation energy of MBSQ were increased with increasing dopant. However, mobilities and activation energy of TBSQ and TMSQ were increased and decreased, respectively.

• Journal of the Korean Professional Engineers Association
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• v.33 no.3
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• pp.42-47
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• 2000

To be successful in foodservice management, you need to have an aptitude for the business. And most of all, service-oriented mind and understanding customers current and future needs are essential. In starting business with a small capital, you need to check on feasibility and profitability of the business item you chose in the first place. Also, other important factors are: How much you'll invest for the business; main target group in the locality and their income level; who are responsible for main menu, sub-menu and final taste. Generally speaking, differentiated menu and unique interior are one of the basic management strategies. The key to success in foodservice management is your unique service for customers .

• Proceedings of the Korean Society of Crop Science Conference
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• 2001.05a
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• pp.222-223
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• 2001

• Proceedings of the Korean Society of Crop Science Conference
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• 2004.04a
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• pp.80-81
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• 2004

• Journal of the Korean Society of Combustion
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• v.1 no.2
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• pp.31-39
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• 1996

This study was carried out to delvelop the burner for condensing gas boiler which can save energy by utilizing latent heat of combustion gas. A perforated can-type burner adopting premixed flame was chosen to reduce NOx emission and to simplify the manufacturing process. Basic experiments using unit cell combustor have been conducted to obtain data about the design parameters of perforated burner surface which can make stable flame for a wide operating conditions. Can-type burners designed on the basis of above data shows that flames are stable and also CO and NOx emission are low for a wide operating range.