• 보건교육건강증진학회지
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• 제26권4호
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• pp.105-116
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• 2009

Objectives: In recent years, pregnancy rate among female adolescents has increased and caused a variety of physical and social problems. Therefore, this study aimed to investigate sexual behavior, delinquent behavior, and pregnancy rate among Korean female adolescents. Methods: In light of the growing interest in adolescent pregnancy, this study conducted a web-based survey, titled "The 2006 Youth Health Risk Behavior Survey." The Korean Center for Disease Control (KCDC) collected questionnaire responses from 34,200 young women. The collected data were analyzed through chi-square test and logistic regression using SPSS Win 14.0 version. Results: This study analyzed main factors, which can predict pregnant experience. The statistic results showed two types of the predicting factors: (1) personal factors: sexual relations after drinking (odds 25.1), Narcotic drug taking (odds 13.0), sexual violence act (odds 7.0), part-time job(odds 2.5), drinking, smoking ; and (2) environmental factors: stepfather(odds 4.2) and natural mother. Conclusion: The influential factor identification for predicting pregnancy rate is important to develop an effective education program for preventing the adolescent pregnancy. The education programs with referring to the identified factors can contribute to reducing the unwilling pregnancy rate of young woman.

• 조명전기설비학회논문지
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• 제12권2호
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• pp.38-44
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• 1998

본 논문에서는 변전설비 운용의 자동화를 실현하기 위하여 변전설비에서 발생하는 다양한 사고를 판정할 수 있고, 변전설비 사고가 송전설비로 확산되는 경우에 대비하기 위하여 송전설비의 진단기능을 부가시킨 지역급전분소의 운전자 지원을 위한 지능적 통합 고장진단 시스템을 개발하였다. 본 논문에서 제안한 전문가 시스템은 변전설비와 송전설비에서 발생하는 다양한 사고를 진단할 수 있으며, 데이터 이중화 장치를 통하여 감시제어 시스템의 데이터 베이스를 공유하게 함으로서 최소한의 부담으로 기존의 감시제어 시스템에 설치할 수 있도록 하였다. 또한 지식에 포함된 불확실성을 처리하기 위하여 퍼지추론을 수행하였고, 모듈라 프로그래밍 기법과 메타-인퍼런스 기법을 사용하고 있으며, 저가의 개인용 컴퓨터로 구현하였다.

• 대한인간공학회지
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• 제33권1호
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• pp.1-14
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• 2014

Objective: The purpose of this study is to select the methodology for SMR HRA which has characteristics that are different from existing nuclear power plants and digital-based plants. Background: We must assure safety to preoccupy export of technology to developing countries or countries interested in nuclear application. And we can be an advanced country in nuclear technology by securing original technology in the field of SMR such as SMART. Method: THERP, which is the most representative HRA methodology among all, and RARA, which is the latest HRA methodology. This study compared and evaluated THERP and RARA. Results: As a result of applying THERP and RARA methodologies which are based on LOCA EOG task analysis result, this research concluded that RARA has higher personal errors than THERP. Conclusion: This study needs validation for LOCA, emergency operations, normal and abnormal scenarios since HRA methodology was only focused on LOCA scenario. Application: The results of this study can apply as base line data when designing MMIS, which is the main control room of SMART, and when building a simulator.

• Perspectives in Nursing Science
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• 제10권2호
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• pp.111-119
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• 2013

Purpose: The purpose of this study was to determine the effects of 6 months lifestyle coaching program for adults with hypertension. Methods: The study utilized the one-group pretest-posttest design. The subjects were recruited from a corporation group member of a private health maintenance organization. The data of 35 subjects who completed the program out of initial 114 subjects were analyzed for this study. The program included 6 times of monthly face-to-face visits and additional short messages by cellular phone. They were given education for self-management of hypertension and coaching for lifestyle modification. Dependent variables were measured at the beginning and at the end of 6months program and compared by paired t-test. Results: There were significant reductions in systolic and diastolic BP, BMI, total cholesterol, and fasting blood sugar. Among the variables in life style, significant changes were shown in alcohol consumption (frequency and quantity) and exercise (frequency and duration). Conclusion: This study showed that 6 months lifestyle coaching program has potential for positive outcomes on BP control and modifying lifestyle for adults with hypertension. However, additional study is needed to find sustainability of lifestyle and the long-term effect of the program with larger sample.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2006년도 International Symposium on GPS/GNSS Vol.1
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• pp.455-458
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• 2006

The Real Time Kinematic (RTK) technique is the most productive and accurate GPS positioning method today, as it can be determinate position within few centimeters instantly. This method is widely used for applications such as surveying, structure monitoring and machine guidance etc. In order to perform RTK processing for large scale systems (i.e. precise vehicle monitoring with many rovers), many expensive RTK receivers and same number of bidirectional communication units have to be installed to collect observation data communicate with the reference site and monitor its RTK solutions. Moreover, if applications require remote control or apply sensing instruments, we have to install computers at each rover. To limit expense and complexity of system management with a large number of rovers, we have developed server based RTK processing platform to share RTK function for all rovers. The system can be process many GPS stations with a single personal computer. we have also developed a specialized dual frequency GPS receiver unit without on-board RTK processing capability to reduce receiver cost in order to demonstrate the advantage of our server based RTK platform. This paper describes the concept of our server based RTK platform and specialized GPS receiver unit with existing applications in Japan.

• 한국식품조리과학회지
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• 제21권2호
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• pp.155-162
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• 2005

The purpose of this study was to identify factors associated with sanitation and cleanliness regarding the importance of family restaurant employees in the Ulsan and Busan areas. Accordingly, this study conducted a suey questionnaire consisting of 28 measures of food-service as well as major subject descriptors. From the results, the frequency, descriptive, factor, correspondence analysis, major findings and marketing implications could be summarized as follows: First, 6 factors were extracted: cooking and control factor, food and tableware handling factor, personal cleanliness condition factor, purchase and receiving factor, unit food material store factor and Kitchen utensil sanitation factor. KMO and Bartlett' stest statistics showed that the data fitted the factor analysis well. Results of factor analysis, average variance extracted estimates and shared variance showed that the convergent and discriminant validity of 6 factors are supported and Cronbach's alpha showed that the internal consistency of the 6 factors was supported. Second, correspondence analysis indicated that statistically significant relationships existed between some of the family restaurant employee sanitation and cleanliness factors and the family restaurant enterprise.

• 한국응급구조학회지
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• 제25권1호
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• pp.205-221
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• 2021

Purpose: This paper is to determine whether automatic defibrillators (AEDs) deployed across communities make a contribution to prevent death in patients with acute cardiac arrest out-of-hospital. Methods: A total of 30,179 cases of cardiac arrest investigation data from the Korea Centers for Disease Control and Prevention was matched to those on emergency medical statistics drawn from annual report for the 2018 Central Emergency Medical Center, and statistics from the National Statistical Office in 2018. Results: Multiple logistic regression analyses revealed that availability of emergency medical resources across associated with different survival rates at emergency room after taking variability of the patient's personal characteristics and episodic situational characteristics held constant. The survival rate was 1.71 times higher for patients living in communities with more than 105 AEDs avaiable per 100,000 inhabitants than for those living in communities with less than 55 AEDs. Conclusion: The survival-related factors of patients with acute cardiac arrest that occurred out-of-hospital were found to be associated with patients' and episodic situational characteristics. The hospital stage were found to be associated with patients characteristics and episodic situational characteristics, The variability of AED available in a community has an impact on survival rate after emergency room treatment.

• 지역사회간호학회지
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• 제32권4호
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• pp.578-592
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• 2021

Purpose: The purpose of this study was to examine the experiences of public officials working for the Coronavirus Disease-19 (COVID-19) response in community health centers in South Korea. Methods: A qualitative thematic analysis was conducted using data collected from three focus groups and two individual interviews. Results: The participants performed quarantine tasks in a poor working environment with several problems, such as significant workload, lack of manpower, and inappropriate compensation system. Participants experienced obstacles in performing quarantine works, which had the lack of the detailed quarantine guidelines, work support and cooperation system. Participants suffered from civil complaints. Participants endured sacrifices in their personal lives while partaking in COVID-19 response work without holidays, and subsequently experienced health problems. And also participants said that it was necessary to secure expertise and effective communication for infectious disease management. Conclusion: The study results suggest that policies are required that are aimed to improve the working environment and the recruitment of experts in infectious diseases. In addition, the job stress related to the COVID-19 response by public officials in community health centers must be evaluated, and the relation of their job stress to physical and mental problems, as well as psychosocial stress, must be examined.

• Safety and Health at Work
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• 제13권3호
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• pp.315-325
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• 2022

Background: Firefighters are required to carry self-contained breathing apparatus (SCBA), which increases the risk of musculoskeletal disorders. This study assessed the newly recruited firefighters' internal forces and potential musculoskeletal disorders when carrying SCBA. The effects of SCBA strap lengths were also evaluated. Methods: Kinematic parameters of twelve male subjects running in a control condition with no SCBA equipped and three varying-strapped SCBAs were measured using 3D inertial motion capture. Subsequently, motion data and predicted ground reaction force were inputted for subject-specific musculoskeletal modeling to estimate joint and muscle forces. Results: The knee was exposed to the highest internal force when carrying SCBA, followed by the rectus femoris and hip, while the shoulder had the lowest force compared to the no-SCBA condition. Our model also revealed that adjusting SCBA straps length was an efficient strategy to influence the force that occurred at the lumbar spine, hip, and knee regions. Grey relation analysis indicated that the deviation of the center of mass, step length, and knee flexion-extension angle could be used as the predictor of musculoskeletal disorders. Conclusion: The finding suggested that the training of the newly recruits focuses on the coordinated movement of muscle and joints in the lower limb. The strap lengths around 98-105 cm were also recommended. The findings are expected to provide injury interventions to enhance the occupational health and safety of the newly recruited firefighters.

• 한국환경생태학회지
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• 제31권6호
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• pp.595-605
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• 2017

본 연구는 숲이 가지고 있는 산림치유인자들과 요인들을 활용하여 방과후 산림치유프로그램 활동이 유아의 친사회적 행동과 자아효능감에 어떠한 효과가 있는지를 알아보고자 하였다. 실험대상은 청주시 ${\bigcirc}{\bigcirc}$동에 위치한 유아교육기관으로 산림치유프로그램 활동을 실시하는 실험집단과 산림치유프로그램 활동을 하지 않고 유아교육기관에서 운영하는 프로그램에만 참여하는 비교집단 만3세~5세 유아 남녀 각각 20명으로 하였다. 실험기간은 2017년 4월 10일부터 2017년 7월10일까지 매주 1회씩 12회로 1시간(60분)씩 실시하였다. 산림치유프로그램 활동 실시 전후에 유아를 대상으로 친사회적 행동과 자아효능감 검사를 실시하고 그 자료는 SPSS 18.0 프로그램으로 분석하였다. 그 결과 긍정적인 행동을 수행할 수 있는 친사회적 행동과, 자신감을 나타내는 자아효능감은 통계적으로 유의미하게 나타났다 (p<0.05). 산림치유프로그램 활동을 실시한 유아들은, 자연과 더불어 또래들과 함께 지내며 긍정적인 생각을 하여 자신감이 향상되었다. 또한 생태지식뿐만 아니라 상대에 대한 배려와 협동심이 증가하였다. 친사회성의 하위요인인 개인정서조절능력과 대인관계형성능력, 유아교육기관 적응능력, 자아효능감의 하위요인인 신체적 효능감이 크게 향상되어 친사회적행동과 자아효능감에 긍정적인 영향을 주는 것으로 나타났다.