• 한국도서관정보학회지
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• 제53권3호
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• pp.119-135
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• 2022

본 연구의 목적은 도서관법 개정에 따라 의무 적용되는 공공도서관 설립 타당성 사전평가가 도서관의 질적인 측면을 개선할 수 있을지 파악하는 것이다. 이에 도서관법 개정 전 같은 목적으로 시행되었던 공공도서관 건립지원 사업 사전평가의 사례 분석을 통해 사전평가의 실효성을 분석하였다. 사전평가를 거쳐 건립된 도서관들의 경우 도서관법 시행령에서 요구하는 법정 사서 최소 기준 3명을 대부분 확보하고 있어 기본적인 도서관 인력 확보에는 도움이 된다고 할 수 있었다. 하지만 당초 계획하였던 만큼의 인력을 확보하여 운영하는 도서관은 거의 존재하지 않았고 신청서에는 도서관 운영을 직접 운영하겠다고 신청하였지만 실제 개관 시 위탁운영으로 변경된 사례도 있어 사전 검토 내역이 충실히 반영되지 않았다는 측면도 있었다. 본 연구는 사례 분석을 통하여 형식적으로 거쳐야 하는 사전 절차가 되지 않도록 법 개정에 따른 현실성 있는 사서 배치 기준의 재확립과 도서관 등록제를 활용한 사후평가 도입을 제안하였다.

• 한국안전학회지
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• 제38권3호
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• pp.43-50
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• 2023

Silicone tetrachloride (SiCl₄) leak accidents cause enormous human and environmental damage because it is highly toxic. Some handling facilities use water curtains to reduce the impact range of SiCl₄. Although the water curtain is known as one of the most efficient technologies for post-release mitigation, its effect on reducing SiCl₄ concentration needs to be investigated scientifically and quantitatively. In this study, three-dimensional computational fluid dynamics (CFD) was used to investigate the physical and chemical effects of water curtains as a release-mitigation system for SiCl₄. SiCl₄ is released and dispersed five seconds prior to the operation of the water curtain. Once the water curtain works, the SiCl₄ reacts chemically with the water and its concentration decreases rapidly; it reaches an emergency response planning guidelines level 2 (ERPG-2) of 5 parts per million (ppm) at about 570 m. We observed, however, that the physical effect of water curtains on reducing SiCl₄ concentration is insignificant when the chemical effect is eliminated. These results are crucial since they can be a scientific and quantitative basis for the 'technical guidelines for estimating the accident affected range'. In order to protect the public from chemical accidents, more toxic gas mitigation technologies need to be developed.

• 대한이식학회지
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• 제31권4호
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• pp.193-199
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• 2017

Background: Although there more than 1,000 liver transplantations (LTs) are performed in Korea annually, their immense cost remains a great hurdle. Hence, in an attempt to reduce the medical costs of LT, a program was initiated at a public hospital affiliated with the Seoul National University Hospital. Methods: A total of 11 LTs have been successfully executed since the first LT performed at Seoul Metropolitan Government Seoul National University Boramae Medical Center in July 2011 through December 2014. Results: Nine patients (81.8%) were male and two (18.2%) were female. The mean age of patients was 53.4±11.4 years. Hepatitis B virus-related liver disease (n=6, 54.5%) was the most common causative disease, followed by alcoholic liver disease (ALD) (n=4, 36.4%). The actuarial 3-year survival rate was 90.9%. The median total medical cost of LTs was US $41,583 (calculated from operation to discharge), but only $11,860 was actually charged for patients with health insurance coverage. One female patient who had undergone deceased donor LT for alcoholic liver cirrhosis died during follow-up. This patient was non-compliant with the medical instructions after discharge, and finally expired due to septic shock at 10 months post-LT. Conclusions: In the public hospital, LT was successfully performed at a much lower cost. However, LT guidelines and peritransplant management protocols for patients with ALD must be established before escalating LT at public hospitals since ALD with poor compliance is one of the most common causes of complications at public hospitals.

• Journal of Korean Neurosurgical Society
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• 제66권1호
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• pp.63-71
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• 2023

Objective : Traumatic brain injury (TBI) is one of the most common injuries in patients with multiple trauma, and it associates with high post-traumatic mortality and morbidity. A trauma center was established to provide optimal treatment for patients with severe trauma. This study aimed to compare the treatment outcomes of patients with severe TBI between non-trauma and trauma centers based on data from the Korean Neuro-Trauma Data Bank System (KNTDBS). Methods : From January 2018 to June 2021, 1122 patients were enrolled in the KNTDBS study. Among them, 253 patients from non-traumatic centers and 253 from trauma centers were matched using propensity score analysis. We evaluated baseline characteristics, the time required from injury to hospital arrival, surgery-related factors, neuromonitoring, and outcomes. Results : The time from injury to hospital arrival was shorter in the non-trauma centers (110.2 vs. 176.1 minutes, p=0.012). The operation time was shorter in the trauma centers (156.7 vs. 128.1 minutes, p=0.003). Neuromonitoring was performed in nine patients (3.6%) in the non-trauma centers and 67 patients (26.5%) in the trauma centers (p<0.001). Mortality rates were lower in trauma centers than in non-trauma centers (58.5% vs. 47.0%, p=0.014). The average Glasgow coma scale (GCS) at discharge was higher in the trauma centers (4.3 vs. 5.7, p=0.011). For the Glasgow outcome scale-extended (GOSE) at discharge, the favorable outcome (GOSE 5-8) was 17.4% in the non-trauma centers and 27.3% in the trauma centers (p=0.014). Conclusion : This study showed lower mortality rates, higher GCS scores at discharge, and higher rates of favorable outcomes in trauma centers than in non-trauma centers. The regional trauma medical system seems to have a positive impact in treating patients with severe TBI.

• 농촌계획
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• 제28권4호
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• pp.55-67
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• 2022

In this study, the village development promotion system was reorganized for Gimhae-si, and improvement plans and post-operation management plans were prepared through expert surveys. Through the Village Development Project, the landscape and environment of the village were improved, and the village and residents were positively changed. The Village Development Project laid the foundation for regional revitalization, giving the next generation hope for the sustainable development of the village. While maintaining the framework of the existing Rural Development Projects guidelines through case analysis of other regions, we operate educational programs for each stage by reflecting regional characteristics, and utilize and communicate with intermediate support organizations, systematically operate, and actively intervene by Eup·Myeon administration. In addition, as a follow-up management program, various follow-up management programs were being operated, such as support for capacity building such as consulting, as well as facility maintenance and support for village managers. As a result of the expert survey to review the adequacy of the improvement plan, the improvement plan derived from the overall average of 4.28 points and the standard deviation of 0 to 0.94 points for the process is judged to be appropriate. In particular, the item of 'self-reliance stage follow-up management' was very important as all experts responded with 5 points. By establishing the village development performance goals, we tried to check whether the qualitative/quantitative goals were achieved by year, and to secure quantified status data in response to changes such as resetting performance goals or adding new performance indicators. In this study, in order to improve the capacity to achieve regional development in response to the rural agreement, we prepared our own sustainable village development promotion system, governance establishment, and follow-up management plan. In addition, it is expected to be used as a reference material for the selection of new districts and the follow-up management of completed districts by establishing the village development goals.

• 디지털융복합연구
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• 제20권1호
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• pp.231-238
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• 2022

본 연구는 치과위생사를 대상으로 일터 영성이 감염관리 지식과 수행, 직무 스트레스에 미치는 영향 분석을 위해 융복합 연구를 시행하였다. 자료수집은 2021년 2-3월 동안 치과위생사 149명을 대상으로 설문조사 하였고 SPSS 21.0을 이용하여 기술통계, t-test, ANOVA, Pearson's correlation 분석을 하였다. 일터 영성은 감염관리 수행 팬데믹 상황에서 일터영성은 감염관리 수행력을 높이고 직무 스트레스를 경감시키는 것으로 조사되었다. 감염관리 지식과 수행이 높은 집단은 직무불안정, 조직체계, 스트레스가 낮게 나타났다. 직무 스트레스는 2년 이하 경력자는 관계갈등, 3-5년 경력자는 직무 불안정, 조직체계, 보상 부적절, 직장 문화가 높게 조사되었으며 6년 이상 경력자가 직무 자율성 결여 인식이 가장 높았다. 팬데믹 상황에서 일터영성은 감염관리 수행력을 높이고 직무스트레스를 경감시키는 것으로 조사되어 포스트 코로나를 대비하여 전인적이고 체계적인 조직운영을 위한 의료의 질을 향상안이 요구되었다.

• Computers and Concrete
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• 제31권5호
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• pp.457-468
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• 2023

Buildings, bridges, and dams are examples of civil infrastructure that play an important role in public life. These structures are prone to structural variations over time as a result of external forces that might disrupt the operation of the structures, cause structural integrity issues, and raise safety concerns for the occupants. Therefore, monitoring the state of a structure, also known as structural health monitoring (SHM), is essential. Owing to the emergence of the fourth industrial revolution, next-generation sensors, such as wireless sensors, UAVs, and video cameras, have recently been utilized to improve the quality and efficiency of building forensics. This study presents a method that uses a target-based system to estimate the dynamic displacement and its corresponding dynamic properties of structures using UAV-based video. A laboratory experiment was performed to verify the tracking technique using a shaking table to excite an SDOF specimen and comparing the results between a laser distance sensor, accelerometer, and fixed camera. Then a field test was conducted to validate the proposed framework. One target marker is placed on the specimen, and another marker is attached to the ground, which serves as a stationary reference to account for the undesired UAV movement. The results from the UAV and stationary camera displayed a root mean square (RMS) error of 2.02% for the displacement, and after post-processing the displacement data using an OMA method, the identified natural frequency and damping ratio showed significant accuracy and similarities. The findings illustrate the capabilities and reliabilities of the methodology using UAV to evaluate the dynamic properties of structures.

• 대한토목학회논문집
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• 제30권2A호
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• pp.161-168
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• 2010

국내 가동 중 일부 원전의 원자로건물에 부착식 텐던이 설치되어 있고, 부착식 텐던에 대한 유효 긴장력 평가는 이들 원전의 계속운전을 위한 주요 현안으로 부각되고 있다. 따라서, 본 연구에서는 System Identification 기법을 이용한 부착식 텐던의 유효 긴장력 평가를 위하여, SI 기법에 유효한 주요 매개변수의 영향 평가를 수행하고 최적의 매개변수를 도출하였다. 본 연구를 위하여, 원자로건물 벽체의 1/5 축소모형 시험체를 제작하였고, 유효 긴장력과 고유진동수 및 변위와의 상관성을 분석하기 위하여 Impact test, SIMO sine sweep test 및 광섬유센서와 변위계에 의한 휨시험을 수행하였다. 시험결과, 고유진동수와 변위 모두 유효 긴장력과 좋은 상관성을 지니는 것으로 나타나, 이들 매개변수 모두 SI 기법의 입력자료로 활용되어 부착식 텐던의 유효 긴장력 예측이 가능한 것으로 분석되었다.

• 문화기술의 융합
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• 제9권4호
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• pp.23-30
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• 2023

본 연구는 간호대학생의 통합임상실습 전·후 학습성과의 차이를 파악하여 효율적인 임상실습 교육 운영을 위한 기초자료로 활용하고자 시도되었다. 단일군 사전·사후 설계로 자료수집은 2021년 7월 19일부터 9월 10일까지 간호대학생 38명을 대상으로 2주간 통합임상실습 전·후 이루어졌다. 수집된 자료는 SPSS/Win 23.0을 이용하여 빈도, Wilcoxon sign rank, 피어슨 상관관계로 분석하였다. 통합임상실습 후 제1학습성과(통합적용)(Z=-4.63, p<.001), 제2학습성과(핵심수행)(Z=-3.99, p<.001), 제6학습성과(비판적사고)(Z=-3.60, p<.001) 및 제11학습성과(연구수행)(Z=-2.76, p=.005)가 실습 전보다 유의하게 증가하였다. 통합임상실습이 학습성과를 향상시키는 효과적인 실습인 것으로 나타났으므로 학습성과 향상을 위한 전략으로 적극 활용하기를 제언한다.

• 융합보안논문지
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• 제22권5호
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• pp.107-113
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• 2022

AR/VR 기반의 교육훈련 체계는 전장 환경과 유사한 실전적 훈련 효과뿐 아니라 사고 예방 및 예산 절감에도 큰 기여를 할 것으로 평가되고 있다. AR/VR을 학습에 활용하기 위한 연구는 꾸준히 진행되고 있으며, 교육과 훈련에 활용할 경우 실세계에서 발생할 수 있는 실패의 경험 없이도 기술을 향상시킬 수 있다. 국방 주요선진국들은 이러한 AR/VR 기술의 이점을 일찍부터 인식하고, 개인의 무기체계 운용 숙달에서부터 종합 전투훈련 체계, 전쟁사 교육, 외상 후 스트레스 치료 등 다양한 분야에서 AR/VR을 개발하고 적용하는 노력을 하고 있다. 한국군도 최근 AR/VR 활용 교육훈련 적용방안을 적극적으로 검토하고 있다. 이에 본 연구의 목적은 국방 선진국의 AR/VR 적용 교육훈련 사례들을 살펴보고 한국군에 적용할 시사점을 도출하는 것이다.