• The Journal of the Institute of Internet, Broadcasting and Communication
• /
• v.16 no.1
• /
• pp.177-182
• /
• 2016

Geofence is a generic concept for describing geographic aspects of PoI(Point of Interest) enabling users to proactively induce context-based actions. However there is no need to maintain continuity when you reflect geofence in case of temporary events, accidents and isolation. Therefore we propose a geofence platform so-called TemG by adding time-limited information to support PoI. The proposed geofence platform TemG ensures the persistency and continuity of geofence. Furthermore, the proposed TemG can not only provide to automatically activate or deactivate the specified geofence during a period of timestamp but also support to the basic context-aware service knowing in/out in the zone. In the near future, the proposed TemG will be need to extend HPS(Hybrid Positioning System) for IoT(Internet of Things).

• Journal of the Korean Institute of Gas
• /
• v.24 no.2
• /
• pp.22-28
• /
• 2020

In this study, quantitative risk assessment was carried out for city gas high-pressure pipelines crossing through urban rivers. The risk assessment was performed based on actual city gas properties, traffic volume and population and weather data in the worst case scenario conditions. The results confirmed that the social and individual risks were located in conditionally acceptable areas. This can be judged to be safer considering that the risk mitigation effect of protecting the pipes or installing them in the protective structure at the time of the construction of the river buried pipe is not reflected in the result of the risk assessment. Also, SAFETI v8.22 was used to analyze the effects of wind speed and pasquil stability on the accident damage and dispersion distances caused by radiation. As a result of the risk assessment, the safety of the pipelines has been secured to date, but suggests ways to improve safety by preventing unexpected accidents including river bed changes through periodic inspections and monitoring.

• (The)Study of the Eastern Classic
• /
• no.59
• /
• pp.387-404
• /
• 2015

A great number of philosophers during 'Six's Dynasty'(六朝) had the most active and furthest discussion throughout the history of China to study the concerns; Having a question such as "Where the body and the soul come out around us?", "What is the essence of complicated and delicate mental operation?" "Are there any relationships between the body and the soul?" and then "How do the human soul exist after death?" First, during 'Don-Jin' period as body and soul theory was based on 'Yin'(陰) and 'Yang'(陽). 'He Cheng Tian' said that everything which was burn on earth should die because the soul couldn't stay the dead body longer. In the same age, 'Ming Fo Run' and 'Da Xing Run' which denied that the soul couldn't exist forever were main topics of the discuss among the distinguished philosophers. Next, during 'Northern & Southern dynasty', body and soul theory was divided into two. First of all, body and soul of 'Heng Cun' might be harmonized, however, that was not perfectly put together. Because, after human death, even if the body of human might be existed, the soul left elsewhere but always stayed around us. The body was the soul which meant that the soul was to the nature of the body and the body was to the usage of soul. Many philosophers insisted that nobody meant no soul according to 'Shen Bu Mie Run' and 'Shen Mie Run'which was the main topic as an academic argument in those days. Finally, during Dong-Jin dynasty covered the significance of Body and Soul theory and analyzed the influence into the history of the history philosophy in china.

• Journal of Korea Water Resources Association
• /
• v.54 no.7
• /
• pp.495-507
• /
• 2021

With the recent industrial development, accidental pollution in riverine environments has frequently occurred. It is thus necessary to simulate pollutant transport and dispersion using water quality models for predicting pollutant residence times. In this study, we conducted a field experiment in a meandering reach of the Sum River, South Korea, to validate the field applicability and prediction accuracy of RAMS+ (River Analysis and Modeling System+), which is a two-dimensional (2D) stream flow/water quality analysis program. As a result of the simulation, the flow analysis model HDM-2Di and the water quality analysis model CTM-2D-TX accurately simulated the 2D flow characteristics, and transport and mixing behaviors of the pollutant tracer, respectively. In particular, CTM-2D-TX adequately reproduced the elongation of the pollutant cloud, caused by the storage effect associated with local low-velocity zones. Furthermore, the transport model effectively simulated the secondary flow-driven lateral mixing at the meander bend via 2D dispersion coefficients. We calculated the residence time for the critical concentration, and it was elucidated that the calculated residence times are spatially heterogeneous, even in the channel-width direction. The findings of this study suggest that the 2D water quality model could be the accidental pollution analysis tool more efficient and accurate than one-dimensional models, which cannot produce the 2D information such as the 2D residence time distribution.

• Journal of the Korea Institute of Building Construction
• /
• v.23 no.5
• /
• pp.607-618
• /
• 2023

Pervasive research underscores the direct correlation between an enhanced safety climate and a marked reduction in accidents. The intricacies of safety climate are governed by three pivotal strata: organizational management, on-site operations, and the broader enterprise framework. Within an organizational context, sustaining optimal performance across these layers poses a considerable challenge, often attributable to the constraints of available managerial bandwidth. It becomes imperative, then, to conceive a phased enhancement blueprint for the safety climate. To orchestrate this blueprint with precision, a discerning understanding of the hierarchy of safety climate metrics is essential, which subsequently guides judicious managerial resource allocation. This investigation is anchored in elucidating the hierarchical significance of safety climate metrics through the Analytical Hierarchy Process(AHP). Implementing the AHP framework, both a questionnaire was disseminated and a subsequent analysis undertaken, culminating in the extraction of relative priorities of safety climate determinants. Consequent to this analysis, "workers' safety prioritization and risk aversion" emerged as the foremost dimension, holding a significance weight of 0.1900. Furthermore, within the detailed elements, "unwavering adherence to safety mandates amidst demanding operational constraints" ranked supreme, manifesting a weight of 0.6663. The findings encapsulated in this study are poised to be foundational in sculpting improvements at an institutional level and devising policies, all with the end goal of fostering an exemplar safety climate within construction arenas.

• The Journal of the Korea Contents Association
• /
• v.15 no.8
• /
• pp.611-624
• /
• 2015

Humanities-collaborated practices in various fields have been supported by several governmental policies as a way to overcome recent social problems. Museum, due to its roles in preserving and sharing cultural and historical heritage for the development of society and communities, has emerged as a key base for the humanities-collaborated practices. This study, in this context, aimed to analyze how the humanities-based museum education programs have been practiced in the museums, which, in turn, might provide a basic data for the future direction and development of the programs and the related governmental policy as well. For this purpose, this study first examined theoretical framework for the link between humanities and museum education, from which a survey was developed. The survey was conducted to 75 museum educators who have been in charge of humanities-based educational programs. The result showed that most programs seemed to reflect the basic direction and purpose of the humanities-linked with museum education. Yet, more needs were found in terms of the educational themes and methods which can facilitate multicultural literacy and reflective thinking and activities within experiential learning environments.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.12 no.2
• /
• pp.878-887
• /
• 2011

With current economic advancements and increasing demand for well-being, diverse leisure cultures have developed. The geographic feature of being surrounded in 3 sides by water has resulted in the sustained growth of the marine leisure market. But the increased market and users has not resulted in the systematic management of sailing safety and equipment. Marine leisure activities occur on water, so the damage from collisions and distress calls are greater than land based leisure activities. And marine leisure equipment is very expensive, requiring systematic management. This research proposes an information system using a new IP-RFID technique to manage the safety of marine leisure users and equipment management.

• The Journal of the Korea Contents Association
• /
• v.9 no.2
• /
• pp.350-358
• /
• 2009

As open skies polices have permeated all over the world, Korea's basic direction of aviation policy is promoting the benefit of the public and the national carriers' competitive power by establishing open skies agreements between the countries. The open skies' directions should be promoted by considering the relationships of various attributes such as governments, airlines, and passengers. To decide the right directions of open skies, we should investigate the economic effects of open skies policies. This research develops a simulation model to analyze the dynamic characteristics of open skies. By using the developed model, this research analyzes the economic effects of open skies. The results showed that open skies have direct impacts on not only frequencies, airfare, consumer welfare but also air transport industry and regional economy. Therefore, it is necessary to take suitable aviation policy that can increase the effects of open skies.

• Informatization Policy
• /
• v.20 no.4
• /
• pp.71-88
• /
• 2013

Probability of technology risk is expected to increase as the post catch-up innovation, characterized by high uncertainty and high risk, would dominate in the coming era of post catchup. Social controversy on online game as a post catch-up innovation is still ongoing, though the shutdown law was enacted by the government. Socio-technical vulnerability causing technology risk paradoxically arose from the world top-level ICT infrastructures and has been reinforced by developmentalism. While both the pros and cons of the regulation fail to recognize dilemma objectively, social cost is brought about and accumulated. With recognizing dilemma between technology innovation and risks, we can tackle technology risks and ensure responsible innovation in post catch-up era.

• Journal of Digital Convergence
• /
• v.14 no.8
• /
• pp.479-485
• /
• 2016

In 2007, London Thames Gateway delivery plan was started, and it was in progress to solve climate change, population density, housing problems, green space, regional imbalances, and transportation issues from east London and Kent to Essex. The plan was carried out faithfully local autonomy enlargement of local governments. This case is evaluated as a successful case of waterfront regeneration with well balanced on development and conservation. This study concludes as follows by comparing with this case and a new Han River management foundation plan. First, Seoul's new plan needs to change to diffuse thinking on comprehensively understanding. Second, local and central government, which are adjacent to Han River, need management scheme in cooperation. Third, the countermeasures for solving traffic problems in Seoul are required through the provision of transportation method to take advantage of the waterfront.