• Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
• /
• 2002.05a
• /
• pp.111-119
• /
• 2002

• Journal of the Korean Society for Heat Treatment
• /
• v.18 no.2
• /
• pp.119-125
• /
• 2005

• Proceedings of The Korean Society of Agricultural and Forest Meteorology Conference
• /
• 2014.10a
• /
• pp.119-124
• /
• 2014

• Current Photovoltaic Research
• /
• v.4 no.3
• /
• pp.119-123
• /
• 2016

We discussed various cover glass substrates available for photovoltaic (PV) modules, and investigated the fabrication methods of light trapping structures for the efficiency enhancement of PV modules: wet and dry etching or laser and direct patternings. We also introduced the analysis of haze at etched glass surfaces as a function of wavelength and also presented a anti-reflection coating technology for PV module.

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
• /
• v.33 no.2
• /
• pp.119-122
• /
• 2022

Functional aphonia is a disease in which normal vocal ability is suddenly lost. When voice therapy is started at an early stage, the prognosis is good. However, if the functional aphonia persists for a long time, there is a possibility that the voice disorder may become fixed, though reports of these characteristics are rare. The authors experienced a patient with functional aphonia that occurred in adolescence and lasted for 7 months and reported the result of treatment.

• The Journal of Bigdata
• /
• v.6 no.1
• /
• pp.133-144
• /
• 2021

This paper derives the fire risk of buildings in Seoul through the prediction of property damage and the occurrence of fires. This study differs from prior research in that it utilizes variables that include not only a building's characteristics but also its affiliated administrative area as well as the accessibility of nearby fire-fighting facilities. We use Ensemble Voting techniques to merge different machine learning algorithms to predict property damage and fire occurrence, and to extract feature importance to produce fire risk. Fire risk prediction was made on 300 buildings in Seoul utilizing the established model, and it has been derived that with buildings at Level 1 for fire risks, there were a high number of households occupying the building, and the buildings had many factors that could contribute to increasing the size of the fire, including the lack of nearby fire-fighting facilities as well as the far location of the 119 Safety Center. On the other hand, in the case of Level 5 buildings, the number of buildings and businesses is large, but the 119 Safety Center in charge are located closest to the building, which can properly respond to fire.

• The Korean Journal of Emergency Medical Services
• /
• v.27 no.3
• /
• pp.47-58
• /
• 2023

Purpose: The purpose of this study was to analyze the characteristics of patients who canceled their ED visits and to determine the factors that influence ED cancellation. Methods: Retrospective study that analyzed data from the electronic medical records(EMR) and Prehospital Care Reports(PCRs) of 305 patients who cancelled their appointments at a single emergency medical center over a six-month period from October 12, 2022, to April 12, 2023. Results: ED cancellations were 2.287 times higher if the patient presented to the ambulance after outpatient hours(09:00~17:00) (p=.007), and ED cancellations were 3.712 times higher if the patient presented to the ambulance under the influence of alcohol(p=.011). For patients' symptoms, medical diseases were associated with a 1.965 times increase in cancelled ED visits compared to other modes of transport (p=.005), while mental and chronic diseases were associated with a 67.3% decrease in cancelled ED visits compared to other modes of transport (OR=0.327, CI=[0.130-0.822], p=.018). symptomatic improvement was associated with a 2.482 times increase in presentations to a 119 ambulance compared to delayed waiting time(p=.022). Conclusion: Emergency medical centers should consider improving the legal system, such as increasing emergency medical care fees, to reduce the number of patients who cancel their appointments.

• Progress in Medical Physics
• /
• v.22 no.2
• /
• pp.99-105
• /
• 2011

The purpose of this study is to evaluate the accuracy of IMRT in our clinic from based on TG119 procedure and establish action level. Five IMRT test cases were described in TG119: multi-target, head&neck, prostate, and two C-shapes (easy&hard). There were used and delivered to water-equivalent solid phantom for IMRT. Absolute dose for points in target and OAR was measured by using an ion chamber (CC13, IBA). EBT2 film was utilized to compare the measured two-dimensional dose distribution with the calculated one by treatment planning system. All collected data were analyzed using the TG119 specifications to determine the confidence limit. The mean of relative error (%) between measured and calculated value was $1.2{\pm}1.1%$ and $1.2{\pm}0.7%$ for target and OAR, respectively. The resulting confidence limits were 3.4% and 2.6%. In EBT2 film dosimetry, the average percentage of points passing the gamma criteria (3%/3 mm) was $97.7{\pm}0.8%$. Confidence limit values determined by EBT2 film analysis was 3.9%. This study has focused on IMRT commissioning and quality assurance based on TG119 guideline. It is concluded that action level were ${\pm}4%$ and ${\pm}3%$ for target and OAR and 97% for film measurement, respectively. It is expected that TG119-based procedure can be used as reference to evaluate the accuracy of IMRT for each institution.

• 한국ITS학회:학술대회논문집
• /
• 2010.05a
• /
• pp.114-119
• /
• 2010

• Digital Contents
• /
• no.11 s.42
• /
• pp.119-140
• /
• 1996

(재)한국데이터베이스진흥센터는 데이터베이스 관련 해외 정기간행물에 수록된 기사 정보의 서지사항 및 초록을 작성, 매월 게재하여 독자 여러분께 최신 데이터베이스 정보를 제공하고자 합니다. 여러분의 발전적인 의견과 성원을 부탁드립니다.