• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2009년도 춘계 학술대회 제21권1호
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• pp.91-92
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• 2009

본 연구에서는 FRP를 거푸집 및 횡보강 철근 대용으로 사용한 현장타설식 CFFT 교각을 개발하는데 있어 축소모형실험을 통해CFFT 교각에 대한 거동분석 및 내진성능 평가를 수행하였다.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 1999년도 추계종합학술대회 논문집
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• pp.651-654
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• 1999

This paper investigates the varying characteristics of the performance degradation resulting from the different combination of wordlength in fixed-point implementation of recursive sinusoidal transform. The performance degradation is analytically derived in the form of noise-to-signal power ratio. The best wordlength combination is shown to be the equal length distribution of the given number of bits between the transform coefficients and the data. The analysis results are also verified through the computer simulations.

• 한국실내디자인학회논문집
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• 제41호
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• pp.172-179
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• 2003

The goal of this paper was to analyze the skylight type and there architectural aesthetic effects in museum. The results of this investigation was based on the study of the skylight applications of museums meaning concerning this theme. It could distinguish among dome, upper skylight, side skylight and totally opened skylight according to the viewpoint of the architectural aesthetics and the lighting. Secondly were above-mentioned skylight and the design of fenestration used as a design element in order to influence and modify space and form.

• Journal of Pharmaceutical Investigation
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• 제9권1호
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• pp.20-27
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• 1979

Furazolidone tablets were made of lactose and corn'starch as adjuvants by compression method. Six formulations were used with variation of lactose and starch contents. Dissolution, disintegration, content unifomity, hardness, and weight variation were examined for furazolidone tablets. Furazolidone tablets showed good results by the ratio of 4 : 1 or 3: 2 (lactose:starch), and the pressure of $2500kg/cm^2$.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1997년도 하계학술대회 논문집 C
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• pp.1216-1218
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• 1997

Hydrolysis of BTDA-ODA: MPDA, PMDA-ODA, PIQ polyimides were investigated by FT-IR. The results showed that hydrolysis depends on structure of polyimide and that polyimide obtains hydrolytic stability by curing. Polyimide-aluminum interfaces were characterized by RAIR. It was concluded that imidization of the polyamic acid to polyimde was inhibited by interaction of acid groups with substrate to form aluminum carboxylate.

• Journal of Plant Biology
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• 제14권3호
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• pp.43-46
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• 1971

Losses of nitrogenin the gaseous form were determined with closed systems in the filed under different vegetation types. Ammonia volatilization was greatest from the pine stand, and least from the sod stand, and was greatly reduced in all three sites in the rainy season due to the low temperature. There were only insignificant differences in the nitrogen dioxide volatilization from the soil of the three vegetation types. Losses of ammonia and nitrogen dioxide at various soil depth also showed little variation. Evidently the microbial activity responsible for the $NO_2$ loss was relatively unaffected by the changes in temperature and soil moisture content during the investigation.

• 한국재료학회:학술대회논문집
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• 한국재료학회 2012년도 춘계학술발표대회
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• pp.63.2-63.2
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• 2012

One-dimensional nanowires (NW)/nanorods are under intense investigation in materials science due to their potential applications in many electronic devices. Since the properties required for these applications are greatly influenced by their microscopic structures, it is important to understand the relation between the microstructures with their optical and electric properties. In this study, Ag nanowires were synthesized in various dimensions and coated onto PET films to form transparent electrode. Their optical and electrical properties were studied in terms of their microstructures. Highly transparent (>90%), low haze transparent electrode films were successfully fabricated with surface resistance as low as (~50 ${\Omega}$/>).

• 대한화학회지
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• 제13권1호
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• pp.13-15
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• 1969

This investigation is to make comparative evaluation of the corrosion inhibiting effects of quinoline, oxine and 7-nitroso 8-hydroxy quinoline (7NHQ). In case of quinoline, and oxine, since the N atom in them functions as cation, the process involved is assumed to be cathode control. On the other hand 7-NHQ was found to form a stable chelate compound with $Fe^{++}$ ion in acidic solution and shows as anode control predominantly. After plotting polarization curves, Tafel parameters were calculated in each solution involving the inhibitors, at the same time corrosion inhibiting effects were separately measured and compared from data of both corrosion current and analytical method.

• 호남수학학술지
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• 제40권3호
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• pp.433-446
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• 2018

In this present investigation, we introduce a new class of harmonic univalent functions of the form $f=h+{\bar{g}}$ in the open unit disk ${\Delta}$. We get basic properties, like, necessary and sufficient convolution conditions, distortion bounds, compactness and extreme points for these classes of functions.

• 한국전산유체공학회:학술대회논문집
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• 한국전산유체공학회 2002년도 추계 학술대회논문집
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• pp.17-22
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• 2002

A numerical solution procedure has been developed to analyze the flow field resulted from the injection of a transverse jet through the divergent flap of a 2DCD nozzle for thrust vector control. The formulation employs the compressible Navier-Stokes equations in conservation law form and a two equation $\kappa-\omega$ turbulence model. Detailed numerical results are presented in this paper for the 2DCD nozzle over a range of secondary to primary injection mass flow ratios and nozzle pressure ratios.