• Journal of East-West Nursing Research
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• v.26 no.1
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• pp.80-90
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• 2020

Purpose: Sex education should be given priority to address dating violence. Comprehensive sex education has been developed based on a nonviolent communication model between couples for the smooth resolution of problems with the opposite sex. The purpose of this study was to develop and apply Comprehensive Sex Education for unmarried couples in their 20s-30s and to examine the effects on sex communication, problem-solving communication, and relationship competence. Methods: This study developed a total of six web-based sex education sessions. A comprehensive sex education program combined with nonviolent communication between couples was developed based on the UNESCO Sex Education Guidelines. A pre- and post-equivalence control design was used to provide moderation-based sex education to compare the effects on gender communication, communication dissatisfaction, and relationship development. Results: We developed a comprehensive sex education program for couples that took three minutes per episode, on a web-based basis. Sex communication, problem-solving communication, and love relationship competence showed significant pre- and post-test differences between the experimental and control groups. Conclusion: The program of this study is an attempt to introduce Korea to comprehensive sex education, which has already been shown to be effective through numerous verification processes abroad and will provide assistance in forming future relationships between lovers.

• Proceedings of the Korean Society of Propulsion Engineers Conference
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• 2003.05a
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• pp.233-239
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• 2003

The present study has numerically investigated the combustion processes in the solid propellant rocket engine. The two step global reaction model for condensed phase and five step global reaction mechanism for gas phase are adopted to predict the detailed flame structure near double-base solid propellant surface. The turbulence-chemistry interaction is represented by the PaSR(Partially Stirred Reactor) model. To reduce the uncertainties for convective heat transfer near solid fuel surface having strong blowing effect, the Low Reynolds number k-$\varepsilon$ turbulent model is employed. Based on numerical results, the detailed discussion has been made for the turbulent combustion processes and transient behavior of pressure and temperature fields in the solid propellant rocket engine.

• Journal of Korean society of Dental Hygiene
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• v.15 no.4
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• pp.603-611
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• 2015

Objectives: The purpose of the study is to investigate the academic achievement in comprehensive dental hygiene courses using MBTI personality type. This study will provide the various pedagogical approaches in the dental hygiene education. Methods: A self-reported questionnaire was completed by 58 dental hygiene students in Chungnam from December, 2012 to March, 2014. The questionnaire consisted of academic achievement of comprehensive dental hygiene course and communication skills, After filling out the questionnaire, the students completed MBTI personality type sheet. Results: The students were categorized as extroversion type (58.6%), sensing type (70.7%), feeling type (56.9%), and perceiving type (67.2%). In the academic achievement, extroversion and judging personality type students had higher self-efficacy than the students of introversion and perceiving types. The extroversion personality type students also had the higher assignment level and confidence than the introversion type. Conclusions: In order to enhance the understanding and learning capacity of the students, dental hygiene professors should understand the differences in achievement levels due to different personality types so that they can utilize better pedagogical approaches.

• Journal of Korean Academy of Nursing Administration
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• v.18 no.2
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• pp.176-188
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• 2012

Purpose: The purpose of this study was to examine nurses' cognition of the diagnosis related group (DRG) in long-term care hospitals and changes in nursing care after application of the DRG system. Method: This study was a descriptive survey involving 161 nurses working in 12 long-term care hospitals located in Gwangju city and Chonnam area. Data were analyzed using the SPSS 18.0 version program. Data analyses utilized descriptive test, chi-square test, Fisher's exact probability test, t-test, and one-way ANOVA. Result: There was no change in cognition of DRG in 55.3% of the nurses, and 26.1% takes to 'change positively'. More than half of the respondents (57.8%) agreed to the application of DRG. After application of DRG, the nurses responded 'there were changes in nursing care' in 23 of the 25 care items. Two items had an increase in nursing care. Conclusions: No distinct changes in nursing care were evident after DRG application. Therefore, there is need to provide education programs related to DRG for nurse in long-term care hospitals.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.6 no.2
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• pp.116-121
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• 2005

Immobilization technique by PVA encapsulation is an effective alternative for wastewater treatment. However little information is available about the effect of PVA characteristics on physical properties as an encapsulation media. This study aims at investigating the effect of the preparation methods of PVA and filler addition to media on the solubility of PVA. The solubility decreased as the freezing temperature decreased and the vacuum-drying was applied. Addition of the PAC (Powered Activated Carbon) and organoclay decreased the solubility of the PVA gels. Organoclay was more effective for lowering the solubility about 25% than the PAC. Nitrification with the PVA-coating media was less sufficient than with the polyurethane media due to the mass transfer restriction for oxygen and nutrients.

• Journal of Korean Society of Transportation
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• v.25 no.1 s.94
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• pp.133-141
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• 2007

The study examines households' auto ownership and car type choice with a nested legit model. In summary. ${\rho}^2$ and the inclusive values, which represent the goodness of fit of the model, are statistically significant. Therefore. the nested logit model is superior to the standard legit model in this case. Also. the elasticity of operating costs is larger than 1, which means households' car ownership and car type choice is very sensitive to the operating costs. Finally, the elasticity of the operating costs in the lower income group is higher than that or the operating costs in the higher income group.

• Proceedings of the Korea Water Resources Association Conference
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• 2007.05a
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• pp.246-252
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• 2007

농업 비점오염원으로부터의 수질 보전이나 수자원 관리는 유역단위로 하여 농업적 관리뿐만 아니라 수질 관리 및 수자원 관리를 위해서도 유역단위 특히, 소유역의 토양특성을 포괄하는 단위로 체계적으로 분류할 필요성이 있다. 우리나라의 남서쪽에 위치한 영산강유역의 50개 소유역을 대상으로 토양도, 지형도, 하천도 및 유역도를 이용하여 만곡도, 산림의 비율, 평탄지의 비율, 다른 소유역으로부터의 유입이 있는지의 여부 등 토양학적으로 중요한 4개의 특성을 가지고 군집분석을 수행하였다. 그 결과 5개의 군으로 구분할 수 있었으며, 이 구분의 적합도를 검정하기 위하여 Mantel test를 한 결과 r = 0.81825로 나타나 적합하다는 결론을 얻었다. 이와 같이 토양과 지형특성을 포괄하는 소유역의 분류 및 유사성에 따른 그룹화는 농업에서의 최적영농관리나 오염물질에 따른 수질관리, 수문모형의 적용성 확대 및 수자원 관리에 합리적 유용성을 제공할 것이며 체계적 관리의 밑바탕이 될 것이다.

• Journal of the Korea Society of Computer and Information
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• v.17 no.4
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• pp.83-90
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• 2012

In e-commerce systems that deal with a large number of items, the function of personalized recommendation is essential. Collaborative filtering that is a successful recommendation algorithm, suffers from the sparsity, cold-start, and scalability restrictions. Additionally, this work raises a new flaw of the algorithm, inconsistent performance of recommendation. This is also not measurable by the current MAE-based evaluation that does not consider the deviation of prediction error, and furthermore is performed independently of precision and recall measurement. To evaluate the collaborative filtering comprehensively, this work proposes an extended evaluation model that includes the current criteria such as MAE, Precision, Recall, deviation, and applies it to cluster-based combined collaborative filtering.

• Journal of Korean Society of Water and Wastewater
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• v.25 no.5
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• pp.741-750
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• 2011

A pilot-scale biofilter was constructed to discover degradation characteristics of the complex odor discharged from Ansan wastewater treatment plant. Candida tropicalis for volatile organic compounds, sulfur oxidizing bacteria(SOB) for hydrogen sulfide, and bacteria extracted from feces soil were immobilized on a polymer gel media. According to this study, the EBCT was varied from 36 sec to 18 sec. Toluene was removed as 80% along the variations, but it was recovered as 100% within 1 week. All benzene and xylene were removed during the operation while the efficiency of hydrogen sulfur was temporary decreased at 18 sec of EBCT, thereafter it was recovered to 100% within a week. The maximum elimination capacities of the benzene, toluene, xylene, and hydrogen sulfur were 6.6 g/$m^{3}$/hr, 31.7 g/$m^{3}$/hr, 7.8 g/$m^{3}$/hr, and 133.6 g/$m^{3}$/hr, respectively. There were merits on removal both organic and inorganic complex odor using the pilot-scale biofilter embedded with microorganisms immobilized on polymer gel media.

• THE INTERNATIONAL COMMERCE & LAW REVIEW
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• v.45
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• pp.165-188
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• 2010

The repeal of the block exemption for liner conferences and the abolition of any "special EC antitrust regime" for the shipping industry marks an important step in European maritime competition policy. This article examines the origins and the rationale of the EC antitrust immunity granted so far to the shipping industry and explains the causes of this historical change. Moreover, based on the precedents which have appeared so far, a general assessment is offered under this new EC regime on agreements restricting competition in the liner shipping industry, in particular horizontal ones: conference and tariff/freight arrangements will be doomed, whereas the legitimacy of consortia agreements should not be cast in doubt; a case-by-case analysis will be the approach as regards exchange or dissemination of information by shipowners in the market, and the relevant case law which emerges on these matters in other industries will be the criterion for their evaluation. Finally, a few remarks are made in respect of the international dimension of the decision to outlaw liner conferences and hence carve out EU Member States from the UN Code of Conduct regime.