• KSII Transactions on Internet and Information Systems (TIIS)
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• v.10 no.11
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• pp.5322-5342
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• 2016

In vehicle-to-vehicle (V2V) networks, where selfishness degrades node activity, countermeasures for collaboration enforcement must be provided to enable application of a sage and efficient network environment. Because vehicular networks feature both high mobility and various topologies, selfish behavior judgment and establishment of a stable routing protocol become intensely challenging. In this paper, a two-phase-based generous cooperative routing protocol (called GEC) is presented for V2V networks to provide resistance to selfishness. To detect selfish behaving vehicles, a packet forwarding watchdog and an average connection rate based on the multipath weight method are used, where evidence is gathered from different watchdogs. Then, multihop relay decisions are made using a generous cooperative algorithm based on game theory. Finally, through buffering of the multiple end-to-end paths and judicious choice of optimal cooperative routes, route maintenance phase is capable of dealing with congestion and rapidly exchanging traffic. Specifically, it is proved that the GEC is theoretically subgame perfect. Simulation results show that for V2V networks with inherently selfish nodes, the proposed method isolates uncooperative vehicles and is capable of accommodating both the mobility and congestion circumstances by facilitating information dissemination and reducing end-to-end delay.

• The Journal of Internal Korean Medicine
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• v.24 no.2
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• pp.203-212
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• 2003

Objective : As a link in chain of research to confirm the oriental medical prescription which has the anti-atherosclerosis effects, this research evaluated the effects on the macrophage-related factors by using KanghwalSokdantang(KS). Methods : In order to perform this research, we have evaluated the effects on the oxLDL formation from the macrophages, the nitric oxide formation, and the oxidation of macrophages. Thus, with this evaluation, we have investigated the applicapability on the artherosclerosis. Results : KanghwalSokdantang has showed a noticeable reduction of protein oxidation in the process of oxLDL formation, has remarkably restrained phospholipid peroxidation, an index to estimated the phospholipid oxidation and reduction that are formed in the process of macrophage's oxLDL formation, and has increased the nitrite concentration noticeably in the LDL-dealing macrophages. By increasing the survival rate of macrophages, KanghwalSokdantang has restrained the cellular damages. KanghwalSokdantang is ineffective on the LDH outflow from damaged cells. $1{\mu}g/ml$ KanghwalSokdantang sample has increased acid phosphatase activity remarkably. Conclusion : KanghwalSokdantang has the possibility to be used in the prevention and treatment of atherosclerosis, which is formed by the oxLDL formation of macrophages.

• Earthquakes and Structures
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• v.9 no.2
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• pp.281-303
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• 2015

The effects of infill panels on the response of r.c. frames subjected to seismic action are widely recognized. Numerous experimental investigations were effected and several analytical models were developed on this subject. This work, which is part of a larger project dealing with specific materials and structures commonly used in Italy, discusses experimental tests on masonry and samples of bare and infilled portals. The experimental activity includes tests on elemental materials, and 12 wall samples. Finally, three one-bay one-story reinforced concrete frames, designed according to the outdated Italian technical code D.M. 1996 without seismic details, were tested (bare and infilled) under constant vertical and cyclic lateral load. The first cracks observed on the framed walls occurred at a drift of about 0.3%, reaching its maximum capacity at a drift of 0.5% while retaining its capacity up to a drift of 0.6%. Infill contributed to both the stiffness and strength of the bare reinforced concrete frame at small drifts thus improving overall system behavior. In addition to the experimental activities, previously mentioned, the recalibration of a model proposed by Comberscue (1996) was evaluated. The accuracy of an OpenSees non linear fiber based model of the prototype tested, including a strut element was verified through a comparison with the final experimental results. This work has been partially supported by research grant DPC-ReLUIS 2014.

• International conference on construction engineering and project management
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• 2015.10a
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• pp.299-303
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• 2015

Flexible space is an adaptable space that has been increasingly used in many office and academic buildings as it increases the use of the space available and reduces the unnecessary building area. However, the architectural, engineering and construction (AEC) industry lacks a formalized method that helps architects predict and update the space utilization of flexible space during the project development, as such prediction aims to maximize the use of the building space available without exceeding the target utilization policy. Consequently, current manual utilization prediction results in lower accuracy level and limits the maximized use of the flexible space, which has multiple space-use types that affect the prediction of utilization. To address this problem, we identified eight space-use type differentiators (SUTDs) based on the literature review and observations and discussed the use of them in automated space-use analysis (SUA), which can predict the utilization of flexible space via a computer program. This research builds on SUA and contributes to flexible space planning by providing a means of a more comprehensive and accurate SUA.

• The Journal of Industrial Distribution & Business
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• v.15 no.8
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• pp.21-27
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• 2024

Purpose: There is a significant opportunity for ESG management to act as a useful guideline for social welfare organizational structures when dealing with sustainability and ethical leadership. The ESG guidelines should allow these companies to improve their business efficacy. This paper aims to explore the specific impacts of ESG management on social welfare. Research design, data and methodology: The systematic review approach ensures that quality work is undertaken in tackling the existing gaps in the literature on ESG management in social welfare organizations. The outcomes of this review will give a useful 'real-life' picture of the consequences of ESG practices and suggestions that can increase the efficiency and sustainability of social welfare organizations. Results: The principal favorable consequences are discussed in this chapter regarding the social welfare organization due to the implementation of ESG management. Subsequently, each effect is posted under different sub-titles and evidence from previously conducted research studies. Conclusions: ESG management is vital for social welfare organizations since it increases their efficiency in operations, public image, and opportunities to receive funds, and it helps improve relations with stakeholders. More so, these organizations can embrace the ESG practices and as a result bring more efficiency to the general welfare of the society.

• Research in Community and Public Health Nursing
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• v.11 no.1
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• pp.146-157
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• 2000

The purpose of this study is to provide basic data necessary for the establishment of a nursing intervention program to relieve the powerlessness of elderly adults in nursing homes by investigating the degree of such powerlessness and factors affecting it. For the study, 353 elderly adults from S. A. D. J and Y free nursing homes located in Pusan were sampled as the subjects. The data were collected through direct interviews using a questionnaire survey and recorded by observation for a month from September 1. 1999. Data were analyzed using the statistical package SAS. The main results were as follows; 1. The mean score of the degree of perceived powerlessness of the subject were 30.4 point out of 64 point. 2. The level of powerlessness showed significant differences among the subjects in terms of educational background and monthly allowance both of which belong to socio-demographic characteristics. 3. Concerning the level of powerlessness based on health conditions. it showed significant differences in terms of the situation of common activity and the subjective perception of health condition. 4. Based on social support. the level of powerlessness was found significantly different in terms of close friends. 5. According to social activity. the level of powerlessness showed a significant difference in religious and leisure activities. In conclusion. it would be more effective in reducing powerlessness in elderly adults and in dealing with chronic diseases and physical discomfort. if we operated programs through which elderly adults can make friends and develop a nursing intervention program focusing on a variety of leisure activities.

• Journal of Korean Society of Disaster and Security
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• v.6 no.1
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• pp.9-17
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• 2013

Government ministries operate various system dealing with filed civil appeals. There are representative systems such as Safety Monitoring System of the Ministry of Public Administration and Security (MOPAS), Disaster Premonitory Information System of the National Emergency Management Agency (NEMA), Facilities Hazard Information System of the Ministry of Land, Transportation and Maritime Affairs (MLTM), Environmantal Monitoring System of the Ministry of Environment (ME). The purpose managing these systems is to reduce casualties and to improve safety by preventing disasters and accidents in local communities. This study suggests the method to effectively operate a safety monitoring system which fits to local situations based on the statistical analysis performed on filed complaint cases in Gangdong-gu as a sample region. The cases has been collected since 2012 through the voluntary safety monitoring activity of a specialist who had finished the Emergency and Safety maneger's master course.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2006.11a
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• pp.548-553
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• 2006

Activity-based productivity data can be used as an significant reference in many areas of project management such as performance evaluation and project planning. However, the existence of various factors influencing construction productivity makes it difficult to collect and analyze the productivity data. In the most of the domestic construction sites, there is no systematic method to collect and analyze the productivity data along with information on influencing factors; it is common to heavily rely on experience and intuition of field managers when dealing with construction productivity data. Therefore it is necessary to develop a management system for collecting and utilizing the productivity data as well as the factors influencing construction productivity. The main objective of this research is to define the construction productivity and its influencing factors at the activity level. In addition, methodologies on how to analyze the productivity data and to estimate productivity of future projects are proposed.

• Journal of Digital Convergence
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• v.11 no.3
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• pp.317-325
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• 2013

The purpose of this study is to evaluate the cognitive functional improvement of cognitive occupational therapy using cognitive function, activities of daily living (ADL) executive function and depression tests in community living elders with mild cognitive impairment (MCI) and dementia. Thirty two elders who diagnosed MCI (n=13) and dementia (n=19) were enrolled in this study. They visited to local elder welfare office and nursing care home from Feb. 2012 to Jun. 2012. They received occupational activity program in terms of physical activity, cognitive function and occupational function of Craft as the manner of a session per week for 8 weeks. The cognitive function, executive function, depression score were improved in both group. Furthermore in MCI participants, cognitive function scores for concentration and memory functions were significant improved more than dementia subjects. Further studies dealing with the development of novel occupational program for cognitive function improvement and its preventive effects were needed.

• Journal of the Korea Convergence Society
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• v.10 no.1
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• pp.245-256
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• 2019

The study is aimed at examining the influence of empathy and pro-social behavior on school life happiness of multicultural and Korean adolescents through sports activities. The results of the analysis of total 461 adolescents participating in sports activities and not participating in sports activities are as follows. Adolescents participating in sports activities have higher levels of empathy, pro-social behavior and school life happiness than those who do not participate. And the more experience involved in sports activities, the higher the level of empathy, the level of pro-social behavior and the level of school life happiness. There is a significant correlation between empathy and pro-social behavior and school life happiness. Empathy and pro-social behavior factors affecting school life happiness are statistically influencing factors such as "relationship formation", "communication", "cooperation", "assistance", "emotional expression", and "comfort". The results of this study suggest the importance of dealing with empathy and pro-social behavior through sports activities in the school life happiness of multicultural families and Korean adolescents.