• Journal of Korean Public Health Nursing
• /
• v.30 no.3
• /
• pp.526-543
• /
• 2016

Purpose: The purpose of this study was to explore how public health nurses (PHNs) perceive their roles and duties (R&D), as well as to investigate the change of their R&D, how they manage and solve problems. Methods: The data were collected through focus group interviews. Data were analyzed using Morgan (1998) and Krueger (1998)'s four step analysis. A total of 17 experienced PHNs participated in this study. Results: The results found 5 themes and 19 sub-themes: R&D of health managers and health service providers, factors affecting the changes of PHN's R&D, R&D in adjusting with trends and expanding work field (R&D being reduced, increasing R&D, need to expand R&D), problem with the structure and quality of workforce (lack of nurse manpower, lack of promotion opportunities, increasing non-regular workers, lack of refinement as an expert), and strategies for solving personnel issues (strengthening the job capacity, cultivating professional refinement, strengthening outside activities and political activities, strengthening the roles of PHN-related associations and academy, engagement policy of non-regular workers, expansion of the activity area) Conclusion: PHNs need to recognize their changing R&D and ways they manage and solve problems to enhance their professionalism.

• Asian Pacific Journal of Cancer Prevention
• /
• v.15 no.3
• /
• pp.1363-1367
• /
• 2014

This research was conducted to compare differences in colon cancer lymphatic vessel invasion (LVI) with D2-40 antibody labeling and regular HE staining, blood vessel invasion (BVI) with CD34 antibody labeling and HE staining and to assess the possibility of using D2-40-LVI/CD34-BVI in combination for predicting stage II colon cancer prognosis and guiding adjuvant chemotherapy.Anti-D2-40 and anti-CD34 antibodies were applied to tissue samples of 220 cases of stage II colon cancer to label lymphatic vessels and small blood vessels, respectively. LVI and BVI were assessed and multivariate COX regression analysis was performed for associations with colon cancer prognosis. Regular HE staining proved unable to differentiate lymphatic vessels from blood vessels, while D2-40 selectively labeled lymphatic endothelial cell cytosol and CD34 was widely expressed in large and small blood vessels of tumors as well as normal tissues. Compared to regular HE staining, D2-40-labeling for LVI and CD34-labeling for BVI significantly increased positive rate (22.3% vs 10.0% for LVI, and 19.1% vs 9.1% for BVI). Multivariate analysis indicated that TNM stage, pathology tissue type, post-surgery adjuvant chemotherapy, D2-40-LVI, and CD34-BVI were independent factors affecting whole group colon cancer prognosis, while HE staining-BVI, HE staining-LVI were not significantly related. When CD34-BVI/D2-40-LVI were used in combination for detection, the risk of death for patients with two or one positive results was 5.003 times that in the LVI(-)&BVI(-) group (95% CI 2.365 - 9.679). D2-40 antibody LVI labeling and CD34 antibody BVI labeling have higher specificity and accuracy than regular HE staining and can be used as molecular biological indicators for prognosis prediction and guidance of adjuvant chemotherapy for stage II colon cancer.

• Proceedings of the Korean Operations and Management Science Society Conference
• /
• 2005.05a
• /
• pp.835-841
• /
• 2005

실시간 가시화/시각화(Visualization)을 위한 지형 가시화 분야에서의 렌더링 속도 향상은 사용자의 현실감에 있어 중요한 역할을 한다. 본 연구는 Height Field 데이터를 사용한 블록 단위 지형 렌더링 방법에서 이전 프레임 정보를 사용하여 지형 가시화 속도를 향상시키는 방법을 제안한다. Height Field로 표현된 지형을 실시간에 효과적으로 렌더링 할 수 있는 방법으로CLOD(Continuous leveI Of Detail)가 있으며 대표적인 방법으로 Multiresolution TIN(Triangle Irregular Network)과 Regular Grid Method에 기반한 방법들이 있다. 대개의 경우, 지형 데이터는 매우 방대한 크기를 가지고 있어서 실시간으로 렌더링 하는 것이 불가능할 경우가 많다. 따라서 실시간 지형렌더링 에서는 LOD(Level of Detail)관리와 뷰 프러스텀 컬링이 실시간 렌더링 속도 향상을 위한 핵심 사항이 된다. 본 연구에서는 PC 기반에서 효과적으로 지형을 표현하기 위해 기존 Regular Grid Method에 기반한 방법의 가시영역 추출(View Frustum Culling)을 수정하여 실시간 지형 렌더링의 가시 영역 추출(View Frustum Culling)시 기존의 쿼드트리 방식과 함께 이전 프레임에서 블록 단위로 저장된 컬링 정보를 혼용하여 속도를 향상시키는 방법을 상세히 기술 한다.

• Fibers and Polymers
• /
• v.5 no.3
• /
• pp.219-224
• /
• 2004

The reactive printing properties of regular viscose rayon and a new regenerated cellulosic fiber (en Vix^{\textregistered}$) which was prepared from cellulose acetate fiber was investigated in a comparative manner. From the results, it was found that en Vix exhibited better printing properties than regular viscose rayon. It showed stable final color yields, irrespective of the amount of thickener, hence reproducibility of printing of en Vix is expected to be excellent. In addition, urea requirements were less for the printings on en Vix than for the corresponding printing on viscose rayon. Therefore, en Vix is also expected to reduce the amount of the urea which causes environmental problems in dyehouse effluent.

• Journal of Korean Public Health Nursing
• /
• v.30 no.2
• /
• pp.337-348
• /
• 2016

Purpose: This study was to examine the factors (depression, level of health status, physical function, depression) influence health related quality of life (EQ5D) in community dwelling elderly according to sex. Methods: A total of 226 elderly subjects over the age of 65 years in community were included. Data were collected by measuring the physical function (muscle endurance, flexibility, balance, and cardiovascular endurance) and by using a questionnaire about EQ5D, depression, health status. Data were analyzed by SPSS 18.0 and AMOS 18.0. Results: The major findings of this study are as follows. Explained variance of EQ5D by regular exercise, physical function, and level of health status was 19% for male elderly subjects and 26.0% for female elderly subjects. The effect was different according to sex. Depression has the effect on EQ5D (${\beta}=-.356$, p<.001) in females, while the level of health status has the effect (${\beta}=.314$, p=.027) in males. Conclusion: The results of this study indicate that the effect of regular exercise, physical function, and level of health status were different on EQ5D according to sex. Thus, different health programs according to sex are necessary to increase the quality of life in elderly individuals.

• 전자공학회논문지 IE
• /
• v.47 no.4
• /
• pp.34-38
• /
• 2010

In this paper, we suggest DCU(Digital Control Unit) for performance improvement and stability security of base station power amplifier. The designed DCU controls electric power that is supplied to power amplifier. When the regular input is 10dBm, the regular output is measured 47.8dBm and the results are compared between the case of the applying and the non-applying the DCU. We got the result that PA system is very stable as DCU are very well operating in the boundary degradation of IMD by the over-power level input.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.41 no.6
• /
• pp.1098-1108
• /
• 2017

This paper investigated stretchability with fabric mechanical properties of one-way and two-way stretch fabrics. For this purpose, 1-way and 2-way woven fabrics were prepared using 150d PET/spandex covered yarns with different thermal treatment according to 4 kinds of wet thermal machines subsequently, fabric mechanical properties were measured and compared with regular PET fabrics. In addition, the garment formability of stretch fabrics was predicted and compared to regular fabrics according to wet thermal treatment. The weft stretchability of 2-way stretch fabric was about 10% higher than the 1-way stretch fabric. The compressibility of the stretch fabrics was 1.5 times higher than regular fabrics. The compressibility of stretch fabrics treated with CPB and rope type wet thermal machine showed higher values than other types of wet thermal machines. The bending rigidity of 2-way stretch fabric was lower than 1-way stretch fabric. Shear rigidity of 2-way stretch fabric was higher than 1-way and regular fabrics. Garment formability of 2-way stretch fabric was higher than regular and one-way stretch fabrics. Garment formability of 2-way stretch fabrics treated with wet thermal conditions under low tension showed the highest values.

• Journal of the Korean Society of Marine Environment & Safety
• /
• v.25 no.3
• /
• pp.366-372
• /
• 2019

This study performed a numerical analysis of a 3D unsteady viscous flow in order to investigate ship motion responses running through regular waves of the platform supply vessel. The feasibility of numerical analysis was tested under the three regular wave conditions of the KRISO container ship (KCS) suggested at the 2010 Gothenburg CFD Workshop. The resulting resistance coefficient, heave motion, and pitch angle were compared with the model test of the harmonic analysis. Also, the ship motion response characteristics of the platform supply vessel were performed using the proven method of the KRISO container ship (KCS). The ship motions including the resistance coefficient, heave motion, and pitch angle according to the time series were investigated via harmonic analysis under regular waves condition of ${\lambda}/LPP=1.87$ and $H_S=0.078m$.

• Kyungpook Mathematical Journal
• /
• v.11 no.1
• /
• pp.37-39
• /
• 1971

• Journal of Korean Biological Nursing Science
• /
• v.19 no.3
• /
• pp.206-213
• /
• 2017

Purpose: The purpose of the study was to compare salivary cortisol levels, self-reported occupational stress, and anxiety before duty to those after duty in the shift and regular work nurses, and the relationships among them. Methods: Thirty nurses working in a tertiary hospital participated in the study. Salivary specimens were collected before and after daytime duty for 2 days. The occupational stress and state anxiety were also evaluated using self-report questionnaires. Results: The average level of salivary cortisol was $0.40{\mu}g/dL$ before duty and $0.20{\mu}g/dL$ after duty in Korean nurses. Overall levels of salivary cortisol, self-reported occupational stress, and anxiety were higher in shift working nurses than regular working nurses. In shift working nurses, the salivary cortisol gap between before and after duty was attenuated on the first day of daytime duty. Significant positive correlation was found between the level of cortisol before duty and anxiety after duty. Conclusion: Strategies to alleviate occupational stress and anxiety are needed for shift working nurses, especially for those with elevated levels of cortisol. It seems to require 3days to recover from attenuated cortisol rhythm during nighttime duty in shift working nurses.