• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
• /
• v.35 no.2
• /
• pp.103-112
• /
• 2017

Due to the large size and high complexity of modern buildings, the interest and the studies about indoor spatial information are increasing. Previous studies related to indoor spatial information were mostly about relevant technologies, and the application of indoor spatial information has been less studied. In the present study, the public administrative work areas where indoor spatial information may be applied were identified by using a modified delphi technique. And the indoor LOD (Level of Detail) and indoor positioning accuracy for indoor spatial information applications considering user requirements was established as standards for efficiently establishing and providing services. The required LOD and positioning accuracy for services was established by reestablishing indoor LOD and positioning accuracy and classifying services with reference to those. The indoor LOD was reestablished from LOD 0 to 4 by focusing on service utilization and general recognition, and the positioning accuracy was reestablished in three levels by considering the accuracy of the present positioning technology and service utilization status.

• Molecules and Cells
• /
• v.39 no.9
• /
• pp.645-653
• /
• 2016

Morphine is the most potent analgesic for chronic pain, but its clinical use has been limited by the opiate's innate tendency to produce tolerance, severe withdrawal symptoms and rewarding properties with a high risk of relapse. To understand the addictive properties of morphine, past studies have focused on relevant molecular and cellular changes in the brain, highlighting the functional roles of reward-related brain regions. Given the accumulated findings, a recent, emerging trend in morphine research is that of examining the dynamics of neuronal interactions in brain reward circuits under the influence of morphine action. In this review, we highlight recent findings on the roles of several reward circuits involved in morphine addiction based on pharmacological, molecular and physiological evidences.

• Journal of Wellbeing Management and Applied Psychology
• /
• v.3 no.1
• /
• pp.11-20
• /
• 2020

Anecdotal reports indicate that maladaptive patterns of Internet use constitute behavioral addiction. Internet addiction is characterized by unrestrained and awfully controlled engrossment or behaviors regarding internet access that lead to impairment, stress, dimensionally measured depression, indicators of social separation and anguish. By reviewing and analyzing approximately 100 articles we present evidence that are able to provide an overview of the main themes and proclivity covered by existing and relevant studies. The vital detection of this research unveils that many factors related to social, demographic, lifestyle changes related constructs have a bearing on the phenomenon of internet addiction strongly. This study not only reached certain conclusions for both theory and practice, but also defined future lines of research according to the gaps detected by the study's results. The main findings from this literature, though not conclusive, but will help the researcher and policymakers to obtain a better understanding and description of the problem faced by the youth and necessary to develop some remedies to lessen the addiction phenomenon.

• Journal of Powder Materials
• /
• v.21 no.3
• /
• pp.235-240
• /
• 2014

The basis of the cobalt demand analysis by use was established via the investigation and analysis of the cobalt materials flow, and the overall cobalt metal material and parts industry structure in Korea was examined to determine the cobalt material flow. The markets of the cobalt material for machinery were studied, including their interrelations, via market and study trends, and relevant plans were examined. The results of the study indicated that the advanced core technology for advanced industry and technology-intensive industry development is required to structurally innovate the parts materials and basic materials industries and to upgrade the catch-up industry structure to the new frontier structure.

• The Korean Journal of Health Service Management
• /
• v.5 no.3
• /
• pp.191-202
• /
• 2011

The aim of this study was to examine the impact of the participation motivation of hospital volunteers, their awareness of hospital image, hospital management of volunteers, the organizational interpersonal relationship of volunteers and their satisfaction with volunteer activities on the continuance of their volunteer activities. The subjects were 480 volunteers who did volunteer activities in 37 hospitals in Busan, 399 subjects were responsed. This study is meaningful in that unlike relevant earlier studies of medicine, it attempted to make an integrative analysis of the influential factors for volunteer activities continuance and to make use of structural equation, a more advanced analysis technique. Besides, this study gave some suggestions on the customized management of hospital volunteers, its objects and related logical model.

• Transactions of the Korean Society of Automotive Engineers
• /
• v.6 no.4
• /
• pp.198-210
• /
• 1998

A crank angle-based engine control system has been developed for use as an engine research tool to provide precise control of the fuel injection(timing and duration) and ignition(timing and dwell) in real-time. The engine event information is provided by the engine shaft encoder, and the engine control system uses this information to generate spark and injector control signals for relevant cylinders. Eight different engine types and four different rotary encoder resolutions can be accommodated by this system. Also this system allows a user to individually control the ignition and fuel injection for each cylinder in a simple manner such as through a keyboard or in a real-time operation from a closed-loop control program.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.8 no.2
• /
• pp.54-62
• /
• 1983

The electric characteristics of semiconductor materials can be found by way of various methods, of which the measurement of the carrier mobility is thought to be of great importance. There exist some mobilty measurements, but the measurement based on Hall effect is the most widely uesd. In this paper is adopted the mobility measurement of semiconductor by the use of cylindrical eavity operated in the same shape as TE modes. It is hoped that the resultant values of measurement, the structure of measurement circut, cavity design and the raising of relevant problems may give much help to those who may interested in this field.

• Proceedings of the KIEE Conference
• /
• 1997.07c
• /
• pp.1056-1059
• /
• 1997

Thyristor-Controlled Series Compensation (TCSC) is expected to be applied in transmission systems to achieve a number of benefits. TCSC can provide such assistance for stability, as well as helping to direct flows onto desired transmission paths. This paper describess a TCSC model which can be used for typical transient and oscillatory stability studies. Also included is a discussion on relevant information to extend the modeling detail of the TCSC for use stability analysis.

• Proceedings of the KSR Conference
• /
• 2008.06a
• /
• pp.1880-1886
• /
• 2008

Recently, a railroad system has a big and complicated structure of specification. Therefore, traceability between specification need to be identified for design change management and this is many engineer's concerns. Traceability means technical relationship. This is to trace other specification or component connect with relevant problem in case some problem should be examined. Traceability between functional specification can be proved through functional analysis essentially. This study will introduce an application method of functional analysis in the case of practical use project of MAGLEV train. And we propose the guide to identify traceability between function through functional analysis.

• Management & Information Systems Review
• /
• v.21
• /
• pp.169-187
• /
• 2007

Today, the principle of competition is being applied to Non-profit sector also. It is necessary for relevant persons in charge to learn the knowledge and technique about marketing technique endlessly in connection with the development of donor out of the development of social welfare resource which is being embossed as main pending problem at the point of time when the role of private sector about welfare service increased and the criterion of competition and evaluation among institutions was introduced. Especially, as for the application of marketing technique to utilize internet to have big marketing potential, the efforts for the realization and application of positive marketing to be suitable for the real situation of each institution is necessary in connection with the donor development of social welfare institution. In this study tried to examine the charge of method to develop donor which is based on the development of information technique and the popularization of internet from the viewpoint of internet marketing and suggest the basic data about the present situation of donor marketing to use the effective scheme for internet marketing.