신수민 교수

The carburizing, melting, and dripping behavior of iron through graphite and coke beds was investigated by an in-situ observation technique with increasing temperature from room temperature to 1773 K. An iron sample placed on the graphite bed was fully melted at 1490 K, whereas that on the coke bed was not melted at 1773 K. From the microscopic analysis of the sample after experiments, it was revealed that solid ash formed at the metal-coke interface prevented the carburization and melting of th

Using the sessile drop technique, the contact angle between a liquid Fe–19%Cr–10%Ni drop and a dense alumina substrate was measured under H2 as well as CO2–H2 atmospheres in the temperature range of 1753 to 1823 K. The measurements were carried out both in the static mode and the dynamic mode. The static measurements in hydrogen showed that the contact angle decreased from 135 to 107° by increasing temperature from 1753 to 1823 K. In the dynamic mode, gas mixtures of different oxygen partial pre

The risk-based capital (RBC) ratio, an insurance company’s financial soundness system, evaluates the capital adequacy needed to withstand unexpected losses. Therefore, continuous institutional improvement has been made to monitor the financial solvency of companies and protect consumers’ rights, and improvement of solvency systems has been researched. The primary purpose of this study is to find a set of important predictors to estimate the RBC ratio of life insurance companies in a large number

This paper critically explores ways in which knowledge is defined from a hierarchical point of view and a sociological point of view. From the sociological point of view, it suggests a new categorization of knowledge relating to knowledge flow. Then it shows how the knowledge flow approach, with this new categorization, can be a complement to existing business strategies. On the basis of previous research, barriers to effectiveness in knowledge flow are identified. A conceptual model is devised,

The purpose of this paper is to define a model to examine information sharing behaviour from a psychological ownership perspective in an organisation. The importance of psychological ownership is emphasised in various researches as the cause of the attitude and behaviour of individuals within an organisation, and many researchers have developed and expanded the concept of psychological ownership. Despite its importance, research that examines information sharing behaviour from a psychological ow

IPTV는 2010년 초반 가입자가 200만 명을 넘어서는 등 빠른 성장세를 보이고 있다. 그러나 이러한 성장세의 지속 여부에 의문이 제기되고 있다. 이러한 의문은 IPTV 성장의 주요 기반에 서비스 자체의 경쟁력에 있느냐 하는 점과 2010년 들어 가입자 증가 속도가 둔화되고 있으며, 가입자 수의 증가에도 불구하고 IPTV 사업자들이 수익을 내지 못하고 있는 점 등 때문에 제기되었다. 이러한 현상은 현재의 IPTV 서비스가 시장에서 요구하는 적절한 서비스 위치를 확보하지 못하였기 때문에 발생한다. 본 연구는 이러한 문제점을 해결하기 위해, 케이블 TV 가입자들의 IPTV로의 전환 요인이 무엇인지를 밝혀내어 소비자들이 인식하고 있는 IPTV 만의 서비스 가치가 무엇인지를 분석한다. 그리고 이러한 전환 요인 중 모바일 IPTV 비즈니스 모델 구성시 반드시 고려해야 할 요인이 무엇인지를 분석한다. 또한 모바일 IPTV서비스로부터 소비자들이 획득하고자 하는 가치와 IPTV서비스 제공과 관

Recently, The Bali Road Map was approved, as it demands that developing countries should also have the responsibility of greenhouse gas reduction from 2013. This suggests that the greenhouse gas and environment should be controlled across industry sectors. Accordingly, this study was conducted to identify the application and effects of the IT convergence technology to the smart farm and realize the low-carbon green industry in Korea. The smart farm technologies within and outside of Korea were c

The study developed the ideas of innovation resistance attitude in view of innovation delay, rejection, and objection. Authors developed the idea of innovation resistance attitudes of customers in view of innovation diffusion process. The study categorized the idea of resistance such as delay, rejection, and objection. The study hired the structural equation modeling to evaluate the relationships among the consumers subjective variables such as incongruence, uncertainty, perceived performance, p