• 정보교육학회논문지
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• 제15권3호
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• pp.493-503
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• 2011

사이버대학 학생정원의 증원은 학생 규모에 따른 교육여건의 확보, 신입생 충원율 등을 감안하여 결정되는데 정원 관리를 위해 고려되는 항목들이 사이버대학의 특수성을 충분히 반영하지 못하고 있으며, 항목별 기준도 미약하여 증원에 대한 자율 통제, 학습권 보호, 교육의 질 담보를 제대로 수행하지 못하고 있다. 본 연구는 사이버대학 학생정원 관리 정책의 취약점을 보완하고 사이버대학의 특장점을 살려서 고등교육기관으로서의 교육의 질을 담보할 수 있는 학생정원 관리 방안을 제안하기 위하여 수행되었다. 본 연구를 통해 사이버대학의 현황 및 질 제고 요소 분석, 전문가 의견조사 등을 통하여 사이버대학 학생정원 관리모형을 도출하였다.

• 한국응용과학기술학회지
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• 제39권1호
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• pp.115-131
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• 2022

본 연구는 PRECEDE-PROCEED 모형을 기반으로 의무경찰을 위한 건강증진교육프로그램의 효과를 검증하였다. 연구대상자는 2018년 7월부터 10주간 D지방경찰청 의무경찰 2개 부대를 편의표집하여 실험군25명, 대조군 26명으로 하였다. 모든 참가자는 자기 효능감, 사회적 지지, 자원이용가용성, 건강증진행위, 삶의 질에 대한 설문지를 작성하고 객관적인 스트레스 테스트를 받았다. 실험군은 5주간 PRECEDE-PROCEED 모형에 따른 7회의 건강증진교육프로그램을 이수하였다. 자료분석은 SPSS/WIN 21.0 프로그램을 이용하여 실험군 대조군의 일반적 특성 및 건강관련 특성의 동질성 검증을 위해 카이제곱 검정과 독립표본 t-검정, Fisher's exact test을, 가설검증은 반복측정 분산분석(Repeated Measures ANOVA)을 통해 분석하였다. 연구결과, 건강증진행위(F=7.63, p<.001), 자율신경활성도(F=29.24, p<.001), 스트레스저항도(F=31.22, p<.001), 스트레스지수(F=22.42, p<.001), 피로(F=12.87, p<.001), 삶의 질(F=3.49, p=.042)로 나타났다. 의무경찰의 건강증진교육프로그램은 삶의 질 향상에 긍정적인 효과가 있는 것으로 검증되어 의무경찰에게 유용하게 활용될 수 있을 것이다.

• 운동과학
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• 제26권3호
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• pp.204-211
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• 2017

PURPOSE: This study was to investigate the effects of resistance exercise on serum inflammatory markers and CatSper 1-4 expression in testis of OLETF rats. METHODS: Male OLETF rats were divided into two groups; control group (n=12), resistance exercise group (n=12). The exercise group performed a total of 8 weeks of moderate intensity resistance exercise on a 1.35 m vertical ladder with weights secured to their tails. RESULTS: The results of this study was following; The exercise group showed a significant decreased in the inflammatory ($IL-1{\beta}$, IL-6, $TNF-{\alpha}$) levels as compared to the control group. But CRP was no significant difference between control and exercise groups. Also, CatSper 1 and 2 were significantly increased in the exercise group compared to the control group, whereas CatSper 3, 4 were no significant difference between both groups. CONCLUSIONS: This study suggests that resistance exercise training can contribute to reduce pro-inflammatory responses in whole body and it affects male reproductive function by improve sperm quality and CatSper protein expression.

• 대한간호학회지
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• 제38권2호
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• pp.217-228
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• 2008

Purpose: This study was conducted to develop and to determine the effects of an integrated symptom management program for prevention of recurrent cardiac events after percutaneous coronary intervention. Methods: Subjects consisted of 58 CAD patients (experimental group: 30, control group: 28). The experimental group participated in an integrated symptom management program for 6 months which was composed of tailored education, stress management, exercise, diet, deep breathing, music therapy, periodical telephone monitoring and a daily log. The control group received the usual care. Results: The experimental group significantly decreased symptom experiences and the level of LDL compared to the control group. The experimental group significantly increased self care activity and quality of life compared to the control group. Although no significant difference was found in cardiac recurrence, the experimental group had fewer recurrences. Conclusion: These results suggest that an integrated symptom management program for prevention of recurrent cardiac events after percutaneous coronary intervention can improve symptom aggravation, recurrent rate, self care activity and quality of life. Nursing interventions are needed to maintain and further enhance the quality of life of these patients and the interventions should be implemented in the overall transition period.

• 지역사회간호학회지
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• 제20권3호
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• pp.307-315
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• 2009

Purpose: This study was done to assess the effects of a self-help intervention on clinical, lifestyle and psycho-social outcomes in patients with Type II diabetes. Methods: Eligible adults with Type II diabetes were randomly assigned to either the intervention group receiving the diabetes self-help or the control group receiving usual care. Of the 36 patients who completed the study, 15 were in the intervention group and 21 were in the control group. The self-help group consisted of six weekly sessions covering aspects of diabetes self-care and using continuing education, discussion, and structured social activities. Outcomes included changes in glycemic control, knowledge, self-management behaviors, diabetes-related self-efficacy, and health-related quality of life. Analysis of covariance was used to compare outcomes between the groups, adjusting for baseline measures. Results: After the six week intervention, significant improvements from the baseline were observed in the measurements of self-management behaviors, diabetes-related self-efficacy, and health-related quality of life for the intervention group. Conclusion: The findings provide preliminary evidence that a diabetes self-help group intervention can benefit diabetes patients in self-management behaviors, diabetes-related self-efficacy, and health-related quality of life. However, larger longitudinal studies are needed to determine the most efficacious self-management methods to sustain long-term glycemic control and psychological well-being.

• 전기학회논문지
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• 제67권7호
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• pp.824-832
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• 2018

According to the government's policy to demonstrate and expand the renewable energy sources, distributed generators such as PV and WP are installed and operated in distribution systems. However, there are many issues related to power quality problems including over voltage and under voltage of customers. In order to overcome these problems, the electric power company have installed a step voltage regulator (SVR) in primary feeders interconnected with distributed generators, and also have established the technical guidelines for the distributed generators to stabilize the customer voltages in distribution systems. However, it is difficult to maintain the customer voltages within allowable limit. Therefore, this paper reviews the problems of voltage control by SVR in a distribution systems interconnected with a large amount of PV systems, and proposes characteristics of operating range and voltage control limit of the small hydropower generators. Also, with the estimation of the influence to the power system voltages from the voltage control mode of generators, this paper proposes the optimal voltage control algorithm of the small hydropower generators. By programming the proposed algorithm into control simulator of exciter, it is confirmed that the proposed algorithm can contribute the voltage stabilization in distribution systems interconnected with large scaled PV systems.

• Smart Structures and Systems
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• 제31권3호
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• pp.247-257
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• 2023

In structural health monitoring of large-scale structures, optimal sensor placement plays an important role because of the high cost of sensors and their supporting instruments, as well as the burden of data transmission and storage. In this study, a vibration sensor placement algorithm based on deep reinforcement learning (DRL) is proposed, which can effectively solve non-convex, high-dimensional, and discrete combinatorial sensor placement optimization problems. An objective function is constructed to estimate the quality of a specific vibration sensor placement scheme according to the modal assurance criterion (MAC). Using this objective function, a DRL-based algorithm is presented to determine the optimal vibration sensor placement scheme. Subsequently, we transform the sensor optimal placement process into a Markov decision process and employ a DRL-based optimization algorithm to maximize the objective function for optimal sensor placement. To illustrate the applicability of the proposed method, two examples are presented: a 10-story braced frame and a sea-crossing bridge model. A comparison study is also performed with a genetic algorithm and particle swarm algorithm. The proposed DRL-based algorithm can effectively solve the discrete combinatorial optimization problem for vibration sensor placements and can produce superior performance compared with the other two existing methods.

• 수산해양교육연구
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• 제24권4호
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• pp.482-493
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• 2012

Logistics security has been enhanced to control cargo containers effectively and safely in global logistics. In response to the change, This study describes the system now being developed that tracks container position, watches cargo security status and gets informations of surrounding until the cargos arrived at its destination. We examine completion and satisfaction of the product for prospective users. For this, considering earlier studies about customer trust, satisfaction, service quality and purchase decision, we analyse an effect among the variables empirically. As a result, when the program is released, we examine customers' satisfaction and purchase decision for the informations to be offered from the program.

• 대한간호학회지
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• 제47권6호
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• pp.756-769
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• 2017

Purpose: To identify the effects of a smart program for the patients who underwent percutaneous coronary intervention (SP-PCI) on coronary disease-related knowledge, health behaviors, and quality of life. Methods: A nonequivalent control group with a non-synchronized design was utilized and 48 participants (experimental=22, control=26) were recruited from a university hospital in Gyeongsang area from May to December, 2016. The 12-week SP-PCI consisted of self-study of health information using smart phone applications (1/week), walking exercise (>5/week) using smart band, feedback using Kakao talk (2/week), and telephone counseling (1/week). Patients in the control group received usual care from their primary health care providers and a brief health education with basic self-management brochure after the PCI. Data were analyzed using the SPSS 21.0 program through descriptive statistics, $x^2$ test, and t-test. Results: After the 12-week SP-PCI, the experimental group showed higher levels of coronary disease-related knowledge (t=2.43, p=.019), heart-related health behaviors (t=5.96, p<.001), regular exercise (Z=-4.47, p<.001), and quality of life-MCS (t=3.04, p=.004) and showed lower levels of stress (Z=-3.53, p<.001) and sodium intake (t=-4.43, p<.001) than those in the control group. There were no significant group differences in medication adherence and food intake in total energy, lipids, and cholesterol. Conclusion: The suggested SP-PCI provided easy access and cost-effective intervention for patients after PCI and improved their knowledge of the disease, performance of health behaviors, and quality of life. Further study with a wider population is needed to evaluate the effects of SP-PCI on disease recurrence and quality of life for patients after PCI.

• Asian Pacific Journal of Cancer Prevention
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• 제17권3호
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• pp.937-938
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• 2016

Stereotactic body radiation therapy (SBRT) appears an effective and safe treatment modality for spinal bone metastasis, which can enhance local control and improve quality of life. Life expectation, predicted fracture risk, localization, quality, size and number of metastasis and presence or absence of nerve compression seem to be important factors in decision-making for treatment. Further studies are needed to identify subsets of patient which will most benefit from treatment.