• Korean Journal of Construction Engineering and Management
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• v.20 no.6
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• pp.98-106
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• 2019

Recently, the number of project delay-related claims and disputes in Korean construction projects has been increasing rapidly. This suggests that the domestic construction contract practice, which has traditionally been superior to the client, is changing into a mutually balanced relationship among the contracting parties. The project delay analysis selects the application method according to the type of schedule approved at the start of the construction and how the schedule management was performed during the construction. The most important prerequisite for project delay analysis is that a complete CPM schedule agreed at the beginning of the construction is prepared and the actual progress of such schedule is well documented. This study is about applying the project delay analysis methodology of a case where a contractor claims damages to a client while constructing a large new private building construction project. In this study, it is determined whether the application of the as-planned analysis method is appropriate to the incomplete CPM schedule and then proposes the as-planned vs. as-built analysis method based on the new standard as an alternative. Next, apply the as-planned vs. as-built analysis method to the schedule in the case project, and then compare it with the result of the as-planned analysis method. The purpose of this study is to suggest a project delay analysis method suitable for the domestic schedule management practices, so that it can be used as a meaningful reference in project delay disputes and litigations of domestic construction projects.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.22 no.2
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• pp.212-220
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• 2021

National R&D investment has steadily increased, reaching number 5 in the world as of 2018. However, for public technology commercialization, the level of discovery of policy models through various cooperation initiatives between government ministries is insufficient, and the performance system that can spread technology commercialization is also limited. In this respect, in order to create results in public technology commercialization, it is necessary to prepare alternatives to strengthen multi-ministerial policy cooperation and increase policy execution power. In this paper, we analyzed the current state of national R&D projects by major ministries and suggested an optimized technology commercialization plan through analysis of the structure, budget, and form of each project. In particular, an alternative in terms of policy efficiency was suggested by analyzing the problems of policy discovery that have not been studied previously. This study is of great significance in that it diagnosed problems of public technology commercialization in terms of the lack of systematic research on public technology commercialization and suggested policy advancement for the spread of technology use and the strategic direction in terms of commercialization.

• The Journal of Korean society of community based occupational therapy
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• v.7 no.2
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• pp.33-45
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• 2017

Objective : This study is to provide basic data for hospice occupational therapy and to develop hospice occupational therapy curriculum in Korea. Methods : 45 articles were selected from CINAHL, MEDLINE, and Scopus, which were published from 1980 to 2013. The selected articles were analyzed in term of study year, study source, author's characteristics, study subjects, and study designs. Results : The number of studies have increased steadily since the 1980's. A total of 21 research journals was published, and the most highest published journals were American Journal of Occupational Therapy. Qualitative research methodology was employed four times more than quantitative research methodology. Interventions included various formats such as crafts, ADLs trainings, relaxation techniques, care giver educations and applications of spirituality. The doing-being-becoming theoretical framework and the model of human occupation applied to hospice or palliative patients as a theoretical foundation. Conclusion : Hospice occupational therapy has been developed along with hospice and palliative medicine. There also appeared to be a balance on both clinical trials and researches The hospce occupational therapy care has being studied deeply with various topic. More efforts on curriculum developments as well as clinical advances pertinent to the palliative care should be proceed to warrant making the start of the hospice and palliative occupational therapy in Korea.

• Journal of Internet Computing and Services
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• v.19 no.2
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• pp.77-88
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• 2018

In order to prevent cervical cancer, free vaccination against cervical cancer(HPV vaccine) for 12-year-old girls has been ongoing since June 2016. The purpose of this study is to investigate how the media reported the risk information of HPV vaccine side effects and to suggest implications for government's risk communication and policy PR. The time frame was divided into two stages, stage 1(policy formation stage, 6 months before the start of free HPV vaccination) and stage 2(policy execution stage, 6 months after the free HPV vaccination was implemented). A total of 314 news articles on HPV vaccine safety and HPV Vaccine side effects were analyzed by content analysis and network analysis. The number of articles increased at stage 2 and the Centers for Disease Control and Prevention emphasized the safety of HPV vaccine and encouraged the inoculation while highlighting the effectiveness of the vaccine. Regarding HPV vaccine side effects, cases against vaccination in Japan were mainly reported at stage 1, whereas cases of HPV vaccine side effects from other countries such as Europe and USA were frequently reported at stage 2. In order to increase vaccination rate of HPV vaccine, it is time to take a strategic approach to prevent vague fear or anxiety about the vaccine.

• Journal of the Korea Society for Simulation
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• v.20 no.1
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• pp.79-85
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• 2011

The problem of evacuating pedestrians from a room or channel under panic conditions is of obvious importance in daily life. In recent years, several computer models have been developed to simulate pedestrian dynamics. Understanding evacuation dynamics can allow for the design of more comfortable and safe pedestrian facilities. However, these models do not take into account the type and state of mind of pedestrians. They deal with pedestrians as particles and the state of mind as a social force, which is represented by conservative and long-range interactions between individuals. In this study, I used the lattice model proposed in my previous study to explore the evacuation behavior of pedestrians with morality. In this model, three types of pedestrians are considered: adults, children, and injured people. Collisions between adults and children result in injured people. When the number of injured people continuously in contact with each other reaches a given value k, the injured people are removed from the lattice space. This situation is the same as that in which pedestrians start stepping over injured people. This behavior was interpreted as the morality of pedestrians. Simulations showed that the evacuation showed down and eventually became jammed owing to the injured people acting as "obstacles" in relation to the morality k.

• Journal of the Korea Knowledge Information Technology Society
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• v.13 no.3
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• pp.351-357
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• 2018

This study is on the elderly people's use and experience of a wearable device. By using wearable device, the elderly can monitor their health data at real time. As a result, their motivation for health care, exercise, and so on can improve and enhance. Across the globe, population aging becomes one of the most important problems in each nation. The social and economic burden from aging is one of most serious challenges to sustainability of the world and its economy, including South Korea. Information Communication Technology including wearable device can help the elderly health care improve. In 2016, the number of wearable devices is more than 19 million. Many of them are the devices related to health data monitoring. In the experiment, the authors measure real time health data from the subjects' wearable devices. In the first experiment day, subjects' average waist size was 36.29 inches. In the final experiment day, 31st day later from start of the experiment, the average waist size was 35.51 inches. At the beginning of the experiment, standard deviation was 1.93. At the final day of the experiment, it was 2.24. In regression analysis, when experiment day extends, average waist size seems to decrease. The trend is significant (t=2.719, p<0.05). That result may mean the subjects' motivation for health care improve. Wearable device can increase the elderly people's motivation for health care and exercise. As a result, their health can improve.

• Journal of the Korean Association of Geographic Information Studies
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• v.26 no.4
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• pp.40-55
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• 2023

Arbor Day is a day that encourages people to plant trees and symbolizes the timing of planting. Arbor Day has been honored on April 5th in Korea, but it often does not agree to actual planting time due to global warming. This study confirmed the discrepancy between Arbor Day and regional soil-thawing times and reviewed alternative dates for tree planting using satellite-based soil-thaw data (FT-ESDR) from 1991 to 2020. Study results showed that the start time of planting on the Korean Peninsula, which was indicated by soil-thaw dates, was March 24 during 1991-2000, and it progressively changed to March 17 during 2011-2020. Should Arbor Day be changed based on soil-thaw periods, mid-March would be the most comprehensive, suitable alternative period considering the number of governmental administration units (cities and counties) and the land area of soil-thaw. Tree-Planting Day (March 14) and International Day of Forests (March 21) were found suitable for alternative dates to Arbor Day because they were close to the average soil-thaw time of Korean Peninsula (March 19) and land area whose soil-thaw time was within 10 days from those two dates ranged from 52.5% to 58.8% centered geographically on the mid-section of the peninsula. Since the periods of soil-thaw will continue to change due to climate change, it is necessary to reflect the trend of advancing planting periods in the future if Arbor Day is changed to an earlier date.

• Korean Journal of Ichthyology
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• v.20 no.4
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• pp.285-290
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• 2008

Morphological characteristics of the cross-bred $F_1$ hybrid between female Paralichthys olivaceus and male Platichthys stellatus were studied. The hybrids showed common biological characteristics of both parents, but showed more morphological similarity to P. stellatus than P. olivaceusin the following biometries: higher ratios of body length to body height (56.3%), head length to snout length (20.6%), and head length to upper jaw length (34.2%). They also showed some significant biometric characteristics similar to P. stellatus, such as ratios of predorsal length (10.5%), prepectoral length (32.2%), preventral length (29.8%), and preanal length (28.0%) to body length. The hybrids had black spots on the dark brownish-green area near the eyes, and they lacked the small bony tubercles that area characteristic of Platichthys stellatus. The hybrids had unique bands: 6~20 bands on the dorsal fin and 5~10 bands on the anal fin that gradually lost their coloration towards the fin margins. The number of fin rays were 60~66 for dorsal fin, 40~51 for anal fin, 18~21 for caudal fin, and 11~12 for pectoral fin. The gills of the hybrids contained 13~18 gill rakers and 73~98 gill filaments. The vertebrae of the hybrids numbered 34~37, with 2~3 vertebrae fused from the start of the caudal vertebrae.

• Development and Reproduction
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• v.4 no.1
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• pp.79-85
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• 2000

This study was made to optimize the conditions needed to produce two types of gynogenetic diploids in the sweet fish, Plecoglossus altivelis. Firstly, ultraviolet (UV) ray doses between 3,000 erg to 14,000 erg/$\textrm{mm}^2$ were tested to inactivate sperm genetically. Based on the appearance of the haploid syndromes in the embryo, a dose of UV ray 6000~7000 erg was required to inactivate sperm genetically. Then, cold shock treatment at 1~2$^{\circ}C$ for 15~30 min were conducted to retain the 2nd polar body in inseminated egg. The best elapsed time before the start of the cold shock was examined between 5~8 min. The experiments in which began 5 min after insemination at 1~2$^{\circ}C$ during 17.5 min gave 21.2％ survival rate and 89.7% normal eyed embryo rate. The gynogenetic diploid produced by suppression of the first cleavage, a considerably high number of heteroploids appeared and high mortality was observed at the metamorphosis stage, so further investigation is needed. The production of gynogenetic diploids were confirmed by GPI isozyme marker. The heterozygous type in Gpi-1 locus was observed in the meiotic-G2N as a result of gene-centromere recombination during meiosis. The heterozygous type was never observed in mitotic-G2N and showed segregation into two homozygous types at Gpi-1 locus.

• Korean Business Review
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• v.18 no.2
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• pp.133-149
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• 2005

DAB is meeting with mixed success. Denmark is performing similarly to the UK thanks to the innovation of the public broadcaster but where DAB is not so strong, the problem can usually be pointed at the lack of enabling regulation. The UK's example, whilst not appropriate everywhere, has valuable lessons including licensing incentives for existing analogue commercial broadcasters and a market-building obligation on the national multiplex licensee. Despite the obvious success of DAB, it would be an omission to leave some of the continued criticisms unanswered, whether of its slow start or the underlying technology. True, there was much over-optimism in the mid-1990s, coupled with unrealistic promises and expectations of receiver pricing and consumer take-up. Governments across Europe have legislated for DAB digital radio in a variety of ways but few as successfully as the UK. It is essential that both public and private broadcasters are encouraged equally to participate in digital radio. The UK is fortunate because, for the last 10 years, there has been a progressive government policy towards digital broadcasting. The 1996 Broadcasting Act set out a full licensing regime for both digital television and digital radio. The 1996 UK legislation contained a number of key elements which have been cornerstones of its success. DAB digital radio began test broadcasting around ten years ago but it has not been a universal consumer success across Europe. In the UK, however, digital radio receivers are one of the fastest-selling consumer electronics products and sales have overtaken those of analogue radios. Why has the UK succeeded with DAB digital radio when other European countries have yet to see their markets take off? This article explains what steps the UK took to make DAB digital radio a success.