• Journal of Ecology and Environment
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• v.42 no.4
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• pp.259-264
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• 2018

Background: Revegetating landfills can be a challenging task as the reclaimed soils are typically dry and have low nutrient content. Therefore, selecting suitable plant species is important for initial revegetation. The issue with current practices (in Korea) is that alien plant species have been typically selected for revegetation projects. In this context, this study selects and tests a set of native plant species for landfill revegetation, accompanied by the assessment of the landfill soils. Results: The soil of the landfill (landfill location) was in a very poor condition with high bulk density and low organic matter and nutrient contents. Among 10 tested species, only Brassica campestris showed high coverage and a sufficient number of individuals in study quadrats sown with seeds. Results suggest that plant species with heavy seeds are the only ones that can adapt to the environment of a typical landfill due to the site's aridity and low nutrient content. The reason is due to such species' superior wind resistance and the capacity to provide sufficient energy for the initial growth of the plants for survival in such landfill environment. Conclusions: This study recommends selecting plant species (1) with arid-adapted features and (2) whose seed weight is sufficiently heavy for survival at landfills or areas with a similar condition for future revegetation.

• The Journal of the Society of Korean Medicine Diagnostics
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• v.19 no.3
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• pp.133-140
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• 2015

Objectives Nijmegen Questionnaire is one tool used internationally to evaluate hyperventilation syndrome. However, there is a necessity of developing Korean version of the Nijmegen Questionnaire, as the questionnaire of the original one are written in English, marking it hard to apply for Korean patients. So as a first step, we conducted a cross-cultural translation of the Nijmegen Questionnaire into Korean and verification of content validity. Methods We translated the Nijmegen Questionnaire into Korean up to guidelines of cross-cultural adaptation. We conducted a survey with 45 subjects to get content validity, using the translated questionnaire. Results About the translated Nijmegen Questionnaire, 28 out of 45 subjects replied that they had no difficulty understanding them, while 17 were pointed out ambiguous items and 7 offered ideas about ambiguous expressions of them. Upon further examination of five Korean Medical doctors, one sentence was additionally modified in the translated version. Conclusions We translated and adapted cross-culturally the original Nijmegen Questionnaire to develop a Korean version in accordance with internationally accepted guidelines. Then we conducted a survey for content validity with the translated questionnaire and gathered opinions from those questioned. After going through some examining and correcting procedures based on the opinions, we finalized the Korean version of Nijmegen Questionnaire. It will also require a follow-up verification process to prove reliability and validity of the final version of the Korean version of Nijmegen Questionnaire.

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 2003.09a
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• pp.272-275
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• 2003

This paper presents the role and its function of Tool server. MPEG-21 means multimedia framework for delivery and consumption of multimedia which is being discussed in ISO/IEC 21000. A view of MPEC-21 aims to define multimedia framework to enable transparent use of multimedia resource across a wide range of networks and devices used by different communities. MPEG-21 will enable all-electronic creation delivery and trade of digital multimedia content and transparent usage of various content types on network device. Therefore, we can provide access to information and services from almost anywhere at anytime with various terminals and networks. In order to support multimedia delivery chain that contains content creation, production, delivery and consumption, we need many standards(elements) for identify, describe, manage and protect the content. Thus, we define Digital Item Player(DIP), Digital Item Adaptation(DIA) server and Tool server as primary objects of MPEG-21 multimedia framework. DIP provides a function which creates and consumes Digital Item(DI) as a kind of a digital object by user. A DI contains both media resources and metadata including rights information. DIA server deals with the usage environment description schema of the user characteristics, terminal and network characteristics and natural environments. DIA server adapts the original DI to the usage environment description sent from the terminal and transmits the adapted DI to the terminal. Tool server searches for a tool requested from DIP or DIA and downloads the best tool to DIP or DIA server. In this paper, we present how Tool sewer is organized and is used among 2 primary objects. The paper is structured as followings: Section 1 briefly describes why MPEG-21 is needed and what MPEG-21 wants. We see requirement that tool server must equip functionally in section 2. The proposed tool server,its structure and its functionality are presented in section 3. Section 4 explains a scenario that tool server transmits tool to DIP and shows the experimental result. The paper concludes in section 5.

• Journal of the Korean GEO-environmental Society
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• v.15 no.8
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• pp.51-58
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• 2014

In this research, the composite grounds including original clay and soil-cement were constructed for conducting uniaxial compression test. Strength and deformation properties were analysed using results of laboratory tests with variations of water content of clay, replacement ratio and cement content. Numerical simulation using 3D distinct element method was conducted for soil cement. For strength of composite ground that contains more than cement contents of 15 %, it is more effective to increase cement content than increase of replacement ratio. Strength and elastic modulus of composite ground could be predicted by regression equations using uniaxial compression strength of clay, cement content of soil cement and replacement ratio. For strength and elastic modulus of soil cement, which is most important things for predicting final strength and elastic modulus of composite ground, numerical simulation using the distinct element method adapted bonding model could be used to verify laboratory test, and predict strength and elastic modulus.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.15 no.9
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• pp.1955-1964
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• 2011

With fast deployment of high-speed networks and various online services, the demand for massive content distribution is also growing fast. An approach that is increasingly visible in communication research community and in industry domain is peer-to-peer (P2P) networks. The P2P swarming technique enables a content distribution system to achieve higher throughput, avoid server or network overload, and be more resilient to failure and traffic fluctuation. Moreover, as a P2P-based architecture pushed the computing and bandwidth cost toward the network edge, it allows scalability to support a large number of subscribers on a global scale, while imposing little demand for equipment on the content providers. However, the P2P swarming burdens message exchange overheads on the system. In this paper, we propose a new protocol which provides confidentiality, authentication, integrity, and access control to P2P swarming. We implemented a prototype of our protocol on Android smart phone platform. We believe our approach can be straightforwardly adapted to existing commercial P2P content distribution systems with modest modifications to current implementations.

• The Journal of the Korea Contents Association
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• v.17 no.8
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• pp.312-324
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• 2017

This study examined how German newspapers and magazines report Korean mass culture, specifically what content on Hallyu (Korean wave) was present and what news frames were used. External characteristics, the content attributes, report trend, and news frames on Hallyu in the German media were analyzed. According to the results, German media from 2009 to 2014 reported the least about Korean wave with only a total of 78 articles. The greatest amount of articles occurred in 2012 when by PSY was a global success. The most common Korean wave articles focused on film and K-pop, but not drama. Hallyu news showed mostly a positive trend. Additionally, a thematic frame was used. Content revealed that a culturally interesting frame was most common. In order to improve the Korea image in Germany, it is proposed that 'the mediated Culture PR' be adapted to German media.

• Journal of Nutrition and Health
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• v.44 no.4
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• pp.312-325
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• 2011

The purpose of this study was to investigate dietary behaviors and nutritional knowledge among immigrant women in multicultural families. In addition, this study reveals a necessity for nutrition education, which is apparent to both immigrant women living in multicultural families as well as nutrition education experts. The survey was conducted with 30 immigrant women within multicultural families in Seoul. The dietary behaviors of the women were significantly different by their period of residence. The longer they had resided in Korea, the higher their dietary behavior score. However, there was no significant difference in nutrition knowledge by their period of residence. This study also conducted in-depth personal interviews with 8 immigrant women who lived in Seoul, and with 4 nutrition education experts. These interviews were performed to provide profound insights regarding the content and means of nutrition education for immigrant women. Nutrition education for immigrant women living in multicultural families should proceed at a basic level in terms of language and content, using bilingual (Korean and their native language) education materials. Education topics and content need to be developed differently according to the level of Korean comprehension and period of residence in Korea. Also, this multicultural approach should be adapted when planning nutrition education since immigrant women have various acculturation levels, and the content and means of education should be adjusted to these acculturation levels. Management after nutrition education is necessary for immigrant women who do not have sufficient understanding of the Korean language. Practical educational methods such as real cooking practices and food purchasing simulations must be developed. Finally, the results suggest that the government needs to establish a systematic plan for nutrition education among immigrant women living in multicultural families. Policy support such as training nutrition educators on multicultural individuals residing in Korea is necessary for active and effective nutritional education.

• Korean Journal of Agricultural Science
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• v.47 no.1
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• pp.105-117
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• 2020

Abiotic stress is one of the most serious problems in plant productivity because it dramatically delays plant growth and development. One of the abiotic stresses, soil salinity, has an adverse effect on plant growth, particularly in areas where irrigation is necessary like semiarid Asia and Africa. Among several physiological parameters, anthocyanin accumulation is a valuable indicator of the condition of the plant, and it tends to increase under salt stress conditions because of its protective role in such an environment. Consequently, it may be important to search for well adapted genotypes for upcoming climate changes. Anthocyanins are known to have important roles in defense against biotic and abiotic stresses, providing important functions for protecting plant cells from reactive oxygen species. In this study, we investigated the anthocyanin accumulation between two Korean sorghum genotypes, Sodamchal and Nampungchal. The two genotypes were subjected to a regulated salinity condition, and the anthocyanin contents were evaluated in both. In Nampungchal, the anthocyanin content increased with 150 mM NaCl treatment during the time course of the experiment. However, the anthocyanin content of Sodamchal decreased in the same condition. The measured values of the anthocyanin content should be useful to identify the intensity of the salt tolerance in Sorghum bicolor L. Furthermore, we studied gene expression profiling of salt stress related genes with qRT-PCR. These results suggest that Nampungchal is a more tolerant genotype to salt stress compared to Sodamchal. This information should be useful for breeding salt-resistant cultivars in sorghum.

• Journal of the Korea Convergence Society
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• v.9 no.11
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• pp.285-290
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• 2018

The steel has been used in modern industry, car maker and electric appliance. The steel have some problem, specially corrosion problem. To solve corrosion problem, Zn electrodeposit on steel have been adapted. Recently, The modern industry asks to increase corrosion resistance. Naturally, Increasing corrosion resistance increases the thickness of Zn electrodeposit. But increasing thickness of Zn electrodeposit has some problems. In making part, There are some crack. This crack cause to decrease corrosion resistance. To solve this problem, it is interested in Zn Based alloy electrodeposit such as Zn-Cr. Here, the influence of the electrolytic conditions on the composition of the alloy plating in the chloride bath was investigated. The results are explained by the cathode overvoltage curve of Cr and Zn. As the current density of the cathode increases, Zn content of electrodeposit decrease and Cr content of electrodeposit increase. As the temperature of the electrolyte increases, Zn content of electrodeposit decrease and Cr content of electrodeposit increase.

• The Journal of Korean Academy of Sensory Integration
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• v.20 no.3
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• pp.27-37
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• 2022

Objective : This study was adapted into Korean for domestic use of the Sensory Processing and Self-Regulation Checklist (here in after referred to as SPSRC) and verified its content validity. Methods : The Korean version of the SPSRC, which was completed via a translation, content suitability, reverse translation, expert committee review, and content understanding process, was presented to three professors of the Department of Occupational Therapy and seven occupational therapists to confirm the content validity. Results : The content validity index (CVI) of the Korean version of the SPSRC was 0.9 or higher in all 130 items. Additionally, the CVI of all items was also 0.99, showing a high level of content validity result. Conclusion : The Korean version of the SPSRC was confirmed to have high content validity as a tool that can measure children's sensory processing ability and self-regulation ability together. The Korean version of the SPSRC facilitates the understanding and evaluation of children's sensory processing and self-regulation abilities in the clinical field, and is thought to be used to establish an intervention plan.