Minsoo Shin

A framework for evaluating economics of knowledge management systems

Organizations are implementing knowledge management (KM) systems with the assumption that the result will be an increase in organizational effectiveness, efficiency, and competitiveness. Implementing KM systems, however, may be a problem to organizations: too much or too little effort might lead to unwanted outcomes. This paper shows how the introduction of KM systems, which lead to knowledge-sharing, has a negative as well as a positive effect. Important variables from economic perspectives are identified and presented as an integrated framework to illustrate their interrelationships. This paper also explains the implications of an integrated framework for knowledge flow in organizations.

The role of public services in the convergence era: IPTV case

Purpose – The purpose of this paper is to investigate the aims of IPTV‐based public services in Korea.Design/methodology/approach – This is a case study written based on the results of a government research project that the authors participated in.Findings – Koreas IPTV promotion policies are driven with a strong force. Focusing on public as well as industrial benefits, the Korean government decided to provide public services through IPTV. For example, the Korean government introduced a plan called “tailored IPTV education services” to expand education services through IPTV. The study of this case is expected to provide implications about new public services under the ubiquitous environment that combines broadcasting and communication.Research limitations/implications – IPTV‐based public services are currently in trial phase. Therefore, additional research is necessary to analyze the effectiveness of services after a commercial launch.Practical implications – This case serves as a reference for other cou...

The Effect of Mobile Office Service Quality Factors on the User Satisfaction : Focused on Usage and Job Characteristics

This study based on DeLone and McLean`s IS success model aims to identify mobile office service factors affecting user satisfaction. The result of analysis showed that user satisfaction was positively related to job performance, and mobility and information quality affects user satisfaction. In addition to that, we carried out separated hypotheses test to investigate mobile office service factors depending on usage(frequently used functions) and job characteristics classified generally as either primary or support activities. As a result of this research, somewhat different results were derived. The main results of this study are that mobility is the most important factor affecting user satisfaction, and mobile office services should be more strictly guaranteed in quality especially if it supports primary activities of customer companies such as sales.

IT Convergence Technology in Plant Growing for Low-Carbon Green Industry

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 comparatively analyzed for the low-carbon green industry policy. The study subjects were determined to propose the necessity of the study efficiently. First, the studies on the smart farm for low-carbon green industry policy were examined. Second, the suitable IT technology for the smart farm as well as the effect and the improvement plan of the IT technology-based smart farm system were examined. This study now aims to promote the low-carbon green industry policy and IT convergence technology and job creation. These will be achieved by providing the plan for linking the system simulator organization with the low-carbon green industry policy.

An Exploratory Study on the Feasibility of M2M Services

Machine-to-Machine(M2M) refers to technologies allowing both wireless and wired systems to communicate with other devices. The enhancement of wireless technologies and the reduced cost of wireless connection have contributed toward the development of M2M market. M2M market currently focuses on public sector services, As M2M can offer scalable and flexible services, M2M services are expected to be applied in various fields. However there are still some doubts on whether the demand for M2M services will be increased. This study investigates the feasibility of M2M services from the perspective of operators. Operators evaluate that M2M services will show high marketability but low profitability in general. In addition, operators predict that M2M services will show both marketability and profitability in the area of car maintenance, insurance, telematics, home and office security, shop floor maintenance, and real-time locating services for children protection. This study may offer some ideas of M2M business models based on empirical feasibility studies.

P‐138: Axially Symmetric Domain Formed by Soft‐Lithographically Patterned LC Alignment Layers

We demonstrated an axially symmetric multi-domain liquid crystal (LC) structure formed by soft-lithographically patterned LC alignment layers. In our structure, homeotropic LC alignment layers are periodically patterned on a unidirectionally rubbed homogeneous LC alignment layer. The field-induced LC reorientation on the non-rubbed patterned surfaces is determined by the easy axis of the pattern boundaries, producing axially symmetric multi-domains or a mono-domain LC structures.

Multi-Domain Liquid Crystal Alignment by Micro-Contact Printed Polymer Layers

We proposed a patterning method of liquid crystal (LC) alignment layers for producing multi-domain LC structures. It was demonstrated that conventional LC alignment materials could be selectively patterned by controlling the surface wetting properties of a patterning material during micro-contact printing procedures. The proposed patterning method was particularly simple and, thus, easily applicable to several LC devices in enhancing or designing electro-optic properties by using multi-domain LC structures.

Telecommunications expenditure potential of Korean households and income turning point

Purpose – The growth of telecommunications spending is the single most vital factor for continuity of the virtuous circle in the overall information communications technology (ICT) industry. This article aims to attempt to gauge the future telecommunications expenditure potential of Korean households by adopting the Kuznets curve which considers the income turning point.Design/methodology/approach – This study begins by examining the structural pattern of household telecommunications expenditures, and then analyzes them using the fully modified least squares estimation method. Household survey raw data collected on a quarterly basis between 1982 and 2005 were used.Findings – The paper finds that the Korean telecommunication market has grown at a high pace and adopted new technologies quickly. Most previous studies on the Korean telecommunication market have predicted that growth will continue on the basis of the past trend of continuous growth in consumer communications service expenditure, and the techno...

Experimental study for flow characteristics and performance evaluation of butterfly valves

The industrial butterfly valves have been applied to transport a large of fluid with various fields of industry. Also, these are mainly used a control of fluid flux to the water and waste-water pipeline. Present, butterfly valves are manufacturing for multiplicity shape of bodies and discs with many producers. However, appropriate performance evaluation was not yet accomplished to compare about these valves through experiments. This study is performed the experiment of flow characteristics and performance of manufactured 400A butterfly valves for the water and waste pipeline, and compared experimental results. We performed experiments that were controlled fixed a differential pressure condition (1 psi) and the range of the flow rate conditions (500 m3/hr ~ 2500 m3/hr), and also opened the disc of valves to a range of angle from 9 degree to 90 degree. We investigated and compared the valve flow coefficient and the valve loss coefficient of results through experiments with each butterfly valve.

Capillary force lithographic patterning of a thermoplastic polymer layer for control of azimuthal anchoring in liquid crystal alignment

Abstract We demonstrated the capillary force lithography (CFL) method for controlling the azimuthal anchoring energy of a liquid crystal (LC) alignment layer. When a thermoplastic polymer film is heated to over the glass transition temperature, the melted polymer is filled into the mold structure by the capillary action and the aspect ratio of the pattern is determined by the dewetting time of the CFL process. Here, the proposed method showed that the azimuthal anchoring energy of the LC alignment layer could be simply controlled by the surface relief patterns which were determined by the dewetting times during the CFL patterning.