• Journal of the Korean Applied Science and Technology
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• v.15 no.3
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• pp.77-84
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• 1998

Two-component polyurethane flame retardant coatings were prepared by blending phosphate-containing modified polyesters(PMPEs) and TDI-adduct. PMPEs were synthesized by polycondensation of dimethyl phenylphosphonate, a flame retardant component, with 1,4-butanediol, adipic acid, and trimethylolpropane. The content of dimethyl phenylphosphonate was varied 10, 15, and 20wt% for the reaction. Various physical properties of these new flame retardant coatings were comparable to non-flame retardant coatings. Coatings with 20wt% dimethyl phenylphosphonate did not burn during the vertical burning test.

• Journal of the Korean Graphic Arts Communication Society
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• v.22 no.2
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• pp.37-54
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• 2004

IPNs have interpenetrating motion and phase separation behavior of independent polymers, respectively, and also these are affected by the physical interaction of polymer components. First of all, 2- and 3-component IPNs based on PU are prepared by combination with two or three components of PU, PMMA, PS and epoxy resin. And then the entire physical properties concerning morphological and mechanical behaviors of these IPNs are measured by employing FT-IR, SEM, Rheovibron, and DSC, etc. Compared with pure component, Tg's of IPN are shifted to higher temperature in all IPN kinds, and these are considered in attribution to internal movement of glass transition temperature or partial phenomenon of interpenetration. Rheovibron measurement results in a broader distribution with peaks of tan${\delta}$ or E", and this morphologically represents a medium degree of partially mixed IPNs in confirmation of SEM photographs.

• Magazine of the Korean Society of Agricultural Engineers
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• v.45 no.1
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• pp.74-82
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• 2003

In this paper, an experimental program was undertaken to test the analysis on Component and mechanical characteristics for crushed stone of excavated Rocks from Sandstone, Shale, Mudstone, for use as a new source of aggregate. Physical and mechanical properties, required for aggregate materials, of major constituents of rock wastes including Sandstone, Shale, Mudstone, Felsite, Basalt, Marl were measured in the laboratory Test results showed that the Shale, Felsite, Basalt tested in this study might possibly be used for construction aggregates. In case of Sandstone and Mudstone, some physical properties such as rock strength were generally adoptable but the aggregate characteristics were lower than required.

• Resources Recycling
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• v.20 no.4
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• pp.46-51
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• 2011

A study on the recovery of tin from the steel ball scraps for barrel plating has been carried out the physical treatment and leaching experiment. The recovery of iron component was over 95% by the physical treatment, and the recovery of tin component was also over 95% by the hydro process.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.12 no.3
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• pp.235-243
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• 2000

A theoretical model for laminar filmwise condensation along an isothermal vertical wall at constant pressure has been formulated on the basis of conservation laws and other fundamental physical principles. The model was applied to the prediction of the influences of variable thermophysical properties of liquid and vapor layers in the filmwise condensation of superheated vapor of Rl2, R134a, R142b and R152a. The dimensionless velocity component method was employed in the transformation of the governing equations and their boundary conditions, and the polynomial method was used for treating variable thermophysical properties of liquid and vapor. Physical quantities, such as the dimensionless thickness of the liquid layer, local heat transfer rate and mean heat transfer coefficient, were investigated for different values of the superheated temperature of the stagnant vapor far from the wall. It was found that the value of mean heat transfer coefficient of R134a was higher than other refrigerants for the change of the superheated temperature.

• Proceedings of the Korea Information Processing Society Conference
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• 2007.05a
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• pp.653-656
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• 2007

과거의 기능 중심의 소프트웨어 개발방법론에서 벗어나 최근에는 서비스 중심의 컴포넌트 기반 소프트웨어 개발 (CBD: Component Based Development) 방법론이 새로운 개발 패러다임으로 각광을 받고 있다. 본 논문은 CBD 방법론 중 마이크로 소프트사의 MSF/CD 방법론을 기반으로 한 물리적인 설계를 할 때 기존의 CID (Component Interaction Diagram)에 Dispatch Agent 를 제안하였다. 실험 결과를 통해 제안된 기법이 component 서비스 속도를 향상시키고 보다 신속한 트랜잭션 처리를 제공함을 확인하였다.

• Transactions of Materials Processing
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• v.24 no.6
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• pp.418-425
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• 2015

Based on eco-friendly advantages and the enhanced development in the chemical and physical characteristics, liquid silicone rubber (LSR) is widely used in producing precision parts in the automotive, medical, electronics, aeronautical and many other industries. In the current work, a thermoplastic-thermoset multi component injection molding (MCM) was developed for a waterproof automotive connector housing using PBT and LSR resins. Measurements of the rheological characteristics of PBT and LSR were made to improve the reliability of the numerical analysis for the multi component injection process. With the measured viscosity, pvT and curing data, numerical analysis of the multi cycle injection molding was conducted using simulation software (Sigma V5.0).

• The Bulletin of The Korean Astronomical Society
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• v.36 no.1
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• pp.30.2-30.2
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• 2011

Dust species in the envelopes around AGB stars would have multiple components rather than a single component. Each dust species may have its own temperature and density structure. We use the radiative transfer code RADMC-3D developed by Dullemond et al. 2011 to model the multi-component dust envelopes around O-rich AGB stars. For reasonable combinations of physical and chemical parameters of the dust envelopes, we use multi-component dust species of silicate, corundum, and water ice. We find that the new model results can explain the observations of O-rich AGB stars better than conventional models.

• Journal of Korean Port Research
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• v.5 no.1
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• pp.55-69
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• 1991

A Container terminal is a physical link between the ocean and land modes of transport and a major component of the container physical distribution system. A number of projects to increase terminal productivity in the world were found to be tied directly to increasing the efficiency of the intermodal activities, that is, to improving the physical distribution process. This is an indication that the productivity of container terminal is being considered withing a system prospective. The purpose of this study is to establish a model of the container physical distribution system for Pusan port linked with 4 sub-systems including Navigational aids system, Cargo handling/transfer/storage system on dock, Off-dock CY system and In-land transport connection system. and to analyze the system. From this analysis, we found that the system had three bottlenecks on the container physical distribution process in Pusan port : a) cargo handling b) storage and c) inland transport, and showed a way to improve the system.

• Asian Journal of Business Environment
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• v.9 no.2
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• pp.5-15
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• 2019

Purpose - The present study endeavours to investigate the impact of intellectual capital (IC) and its components on corporate sustainable growth in India. In addition, this study aims to find out the most influential component of IC on corporate sustainable growth in India. Research design, data, and methodology - A sample size of top 139 NSE listed non-financial companies over a time period of five years has been used in this monograph. The impact of intellectual capital and its components on corporate sustainable growth has been examined using the longitudinal data analysis technique. Results - The findings of this study bring to light that intellectual capital (IC) as measured by the M-VAIC model demonstrates a significant impact on corporate sustainable growth. Considerably, the results also reveal that almost all the explanatory variables viz. Physical Capital, Relational Capital, Innovation Capital, and Process Capital exercise notable influence in explaining corporate sustainable growth. Moreover, the results demonstrate Innovation Capital (controlling the effect of Physical Capital) represents the most influential component of IC on corporate sustainable growth. Conclusions - The research findings show that in the Indian context, both physical capital, and IC (overall), as well as its components, play a crucial role to explain corporate sustainable growth.