• Proceedings of the KIEE Conference
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• 2011.07a
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• pp.366-367
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• 2011

The DC distribution system iis a new promising topologies in a field of future smart distribution system. This system has high efficiency and reliability. So it is expected that there would be an increase in the installation of DC distribution systems. In this paper, the parameter of the DC/DC converter impact on customer's the power quailty in the DC distribution system when the fault occurred. For the analysis, DC network to be modeled using PSCAD/EMTDC. The fault is occurred at phase A in secondary side of MTR which is AC system. Then compared voltage and power at the customer side by varying the capacity of capcitor in the DC/DC converter.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.9 no.6
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• pp.89-94
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• 2009

In wireless mesh network, nodes are communicates as like as Ad-Hoc. Nodes of Wireless Mesh Network must have a good QoS and a algorithm for good path. ETX, ETT and WCETT are proposed Wireless Mesh Network routing methods. But these have Interference problem. This paper propose ETI(Expected Transmission Interference) based on ETT for good path selection. This paper show the algorithm and improved performance in simulation than other algorithms.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2022.04a
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• pp.146-147
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• 2022

Exposed composite beams composed of H-beams and concrete slabs are generally used in building structures because of their excellent economics and flexural strength. However, deep beams used under large load often make difficulties in construction. In this study, an exposed composite beam with high strength steel (SM460) used in the bottom flange of built-up H-shaped beam, so-called S-Beam, was proposed in order to reduce beam depth. And its positive and negative flexural strengths were experimentally evaluated. The test results showed that S-Beam has excellent flexural strength and ductility.

• Journal of Korean Biological Nursing Science
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• v.7 no.1
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• pp.15-28
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• 2005

Purpose: With post-Genome Project, nurses must be able to incorporate genetic knowledge into their practice. The purpose of the present study aimed at providing the basic information needed to establish an education program for the training of nurses specialized in genetic counseling by comparing and analyzing the education contents in genetics of the various domestic and foreign nursing education institutions, identifying the problems of the existing programs, and investigating the current state of domestic genetic counseling programs. Result: The results of literature review were summarized as follows: Common curricula contents in Korea, Japan and U.S.A. were basic genetic knowledge, genetic counseling and prenatal diagnosis. However, In Korea the curriculum was not included legal, ethical, and social issues. In U.S.A. the course was focused on health promotion related to genetics. The expanded role of nurses is to provide the genetic counseling for clients and their families. So, this articles provided a sample of the new genetic counseling program for nurses which are included basic genetics, genetic counseling, nurse's role and knowledge, legal, ethical, social issues and practicum. Conclusion: this study suggests that this educational program is to brought up genetic specialized nurses in the master's course in the near future.

• Korean Journal of Adult Nursing
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• v.25 no.1
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• pp.95-104
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• 2013

Purpose: The purpose of this study was to investigate the level of resilience, family support, anxiety and depression in patients with hematologic malignancy, and to determine modifiable psychosocial factors that affect their resilience. Methods: Data were collected from 104 patients undergoing curative therapy at 'S' hospital in Seoul. The data were collected from April to May, 2012. The questionnaires included Korean Version of Connor-Davidson Resilience Scale, Family Support Scale and Hospital Anxiety-Depression Scale. The data were analyzed using descriptive statistics, t-test, ANOVA, Pearson correlation and stepwise multiple regression. Results: Resilience had statistically significant correlation with family support (r=.43, p<.001), anxiety (r=-.49, p<.001) and depression (r=-.52, p<.001). Factors influencing resilience were depression, family support, anxiety and time since diagnosis with R-sq. value of 36%. Conclusion: The results of the study show that family support, anxiety and depression have important influences on resilience of patients with hematologic malignancy. Thus, family support needs to be reinforced when developing and implementing nursing intervention, and nurses need to intervene to reduce anxiety and depression of patients with hematologic malignancy.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.10a
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• pp.699-700
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• 2011

This paper shows the way to prevent the leaking of private information due to malicious codes or connections of invalid URL in QR-Codes, which is used in the present smart-phone. It is difficult to filter out the connections directly with decoding the QR-Codes, so before connecting, we construct servers which compare results of decoding the QR-Codes to a valid URL. The server notifies warning to Smart-phone users if the results were uncertain URLs which did not registered in the server. This paper would help the Smart-phone users to protect their privacy.

• Clean Technology
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• v.22 no.2
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• pp.114-121
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• 2016

In this studies, SCR reaction activity and SO₂ durability enhancement study on manufacturing conditions of the V/TiO₂ catalyst was carried out for the removal of nitrogen oxides generated in the combustion furnace. The catalysts are characterized by XPS, Raman, H₂-TPR and SO₂-TPD. When the vanadium was contained of 2 wt%, it showed excellent SO₂ durability and catalytic activity. and When the tungsten is added as a promotor, the enhancement of reducing ability at a low temperature and reduction of SO₂ adsorption capacity improved the reaction activity and SO₂ durability. V/W/TiO₂ are prepared by the lower pH of vanadium solution, vanadium was highly dispersed on the surface and inhibited the formation of crystalline V₂O₅. in addition, it was confirmed that this catalyst can be used as excellent resistance to high concentration of CO in the combustion furnace.

• The Journal of Korean Academic Society of Nursing Education
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• v.11 no.2
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• pp.169-176
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• 2005

Purpose: The purpose of this study was to analyze the present status of practicum of fundamentals of nursing in baccalaureate nursing programs. Method: This study used a descriptive design surveying status of practicum of fundamentals of nursing from 47 schools. The instruments developed by investigator based on Shin's(2003) findings. The data collected were analyzed by SAS and the content analyses. Result: 1) The aims of fundamental nursing practicum were 'the acquirement of knowledge on fundamental nursing skill and attitude, and their implementations'. 2) 45 schools had their own practicum labs and the number of a group was 5 or 6. The mean number of student was 37.8 and the mean size of the labs was 169m2(${\pm}\;93.6$). 3) The credit of lecture and practicum ranged from 3 to 4 and in 32% schools, one professor and one teaching assistant were responsible for the practicum of fundamental nursing. 4) The teaching methods of practicum were shown as demonstration, role play, case study presentation, special lecture, video, computer simulation, and so forth. 5) The practice evaluation was used practice examination and students' self evaluation. Conclusion: The studies require of the contents and the evaluation method corresponding to the course objectives.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.35 no.6
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• pp.486-489
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• 2009

Odontogenic Myxoma of the jaws is a rare benign tumor derived from embryonic mesenchymal elements of dental anlage. It appears to originate from the dental papilla, follicle or periodontal ligament. Odontogenic Myxoma of the maxilla is less frequent but behaves more aggressively than that of the mandible, because it spreads through the maxillary sinus. Radiographically, the tumors present as unilocular or multilocular radiolucent lesions with well-defined borders with fine, bony trabeculae. On gross examination, the tumor appears as a smooth, glistening, gelatinous, lobulated mass. On microscopic examination, these neoplasms exhibit loose arrangement of stellate-shaped cells. The intercellular substance is a mucinous and homogeneous matrix. We report a case of odontogenic myxoma of the maxilla observed in our clinic with good prognosis after partial maxillectomy.

• Proceedings of the Korea Water Resources Association Conference
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• 2006.05a
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• pp.1236-1240
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• 2006

Flooding is an inevitable problem for many cities. The study has depended on a combined approach of physically based modeling and GIS. The stream network is structured by MIKE11 for basis of a network and extended by MIKE21 to make like 2D analysis. This method is called alternative 2D analysis. In this study, one of area in Korea is used to analyze overflow of stream. Flood risk of the area looks like not so big because an elevation of this area is very high and slope is steep, but it is very dangerous area due to the typhoons. The tools to make flood risk map are MIKE11 and MIKE21 include GIS program. And map is expressed 3-D animation with MIKE Animator. As a result of this work, the flood risk map is made. And everyone who is not an expert can check dangerous area for flooding. At present, the method which is viable and easily confirmable must be promote because one of matters of common interest, which is of the general public, is the flood disaster.