http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Prediction of Laser Process Parameters using Bead Image Data
전예랑,최해운,Jeon, Ye-Rang,Choi, Hae-Woon The Korean Society of Manufacturing Process Engine 2022 한국기계가공학회지 Vol.21 No.6
In this study reports experiments were conducted to determine the quality of weld beads of different materials, Al and Cu. Among the lasers used to make battery cells for electric vehicles, non-destructive testing was performed using deep learning to determine the quality of beads welded with the ARM laser. Deep learning was performed using AlexNet algorithm with a convolutional neural network structure. The results of quality identification were divided into good and bad, and the result value was derived that all the results were in agreement with 94% or more. Overall, the best welding quality was obtained in the experiment for the fixed ring beam output/variable center beam output, in the case of the fixed beam (ring beam) 500W and variable beam (center beam) 1,050W; weld bead failure was seldom observed. The tensile force test to confirm the reliability of welding reported an average tensile force of 2.5kgf/mm or more in all sections.
선형모형의 가설하에서 비선형 검정통계량간의 상호관계분석
전예지,조진서 통계청 2015 통계연구 Vol.20 No.1
This paper analyzes the interrelationships among Wald, likelihood ratio, Lagrange multiplier statistics for testing neglected nonlinearity. We show that the three test statistics are equivalent under the null although there exists a twofold identification problem. This implies that the trinity property holds for the tests as for the standard case. 본 연구는 비선형모형의 가설검정을 위해서 사용할 수 있는 왈드(Wald), 우도비(likelihood ratio), 라그랑쥐 승수(Lagrange multiplier) 검정통계량을 선형모형의 가설하에서 연구한다. 구체적으로선형모형의 귀무가설 하에서 이들이 어떠한 점근분포를 취하며 어떤 관계가 있는지 살펴본다. 그 결과 식별의 문제가 두 겹으로 존재함에도 불구하고, 상기 세 검정통계량 간에는 삼위일체의성질이 존재함을 보이고 이를 모의실험을 통하여 재확인한다.
노년기 상용치료원 보유의 효과 분석: 의료비와 주관적 건강상태에 대한 효과를 중심으로
전예지 ( Yeji Jeon ),사공진 ( Jin Sakong ) 한국보건행정학회 2021 보건행정학회지 Vol.31 No.4
Background: Population aging is a serious problem in Korea. And we have experienced a rapid increase in the health expenditures of the elderly. The purpose of this paper is to analyze the effect of having a usual source of care (USC) for the elderly. Methods: This study used the Korea Health Panel Survey data of 2012, 2013, 2016, 2017, and 2018. The sample was the person who answered the USC questions among the elderly. The panel logit model was used to analyze the determinants of having USC and the panel simultaneous equation model was used to analyze the effect of having USC among the elderly on the medical expenses, medical utilization, and subjective health status. Results: The estimation result shows that age, income, marriage, and so forth turn out to be the factors of having USC. Having the clinic level USC is estimated to reduce the health care utilization and the health expenditure and to improve the subjective health status. Conclusion: It is expected that the result of our analysis will provide evidence for encouraging having USC.
중⋅고령자가 경험하는 불안정노동은 성별에 따라 분절적으로 나타나는가?
전예지 한국노인복지학회 2022 노인복지연구 Vol.77 No.1
The purpose of this study is to categorize precarious work experienced by middle-aged and elderly men and women respectively in the labor market and to examine the heterogeneous changes in the gender division of precarious work. Data are employed from the 1st(2006) wave to the 7th(2018) wave of the Korean Longitudinal Study of Ageing(KLoSA) and the group-based trajectory analysis is conducted. As a result of the analysis, five trajectories are derived respectively for men and women. Men are continuously exposed to the danger of precarious work or show a deepening pattern toward danger. On the other hand, women continued to work with higher uncertainty than men, but 9.1% of them were out of the risk of precarious work. The results of this study suggest that customized policies need to be implemented to resolve the risk of gender division of precarious work in the labor market. 본 연구는 남성과 여성 중⋅고령자가 노동시장에서 경험하는 불안정노동을 각각 유형화하고, 성별에 따라 나타나는 불안정노동의 이질적인 변화 과정을 살펴보는 것을 목적으로한다. 이를 위해 고령화연구패널조사(KLoSA) 1차(2006년)∼7차(2018년) 자료를 활용하여 집단중심추세분석을 실시하였다. 분석결과, 남성과 여성 각각 5가지 유형이 도출되었다. 남성은 불안정노동에 지속적으로 노출되거나 불안정성의 심도가 깊어지는 양상을 보였다. 한편, 여성은 남성보다 불확실성이 높은 노동을 지속하는 양태를 띠었으나, 9.1%는 불안정노동의 위험에서 벗어나는 것으로 확인되었다. 불안정노동의 성별 분절을 실증한 본 연구의 결과를 바탕으로 노동시장에서 남성과 여성 중⋅고령자의 불확실성을 해소하기 위해 맞춤형 정책이 시행될 필요가 있음을 제기하였다.
전예나,전정우,홍지헌,유재호,김진섭,김성길,이동엽 대한통합의학회 2023 대한통합의학회지 Vol.11 No.3
Purpose : Until recently, the number of cancer patients continues to increase, and these patients have many limitations in their activities of daily living. In the republic of Korea, cancer patients are showing an increasing trend every year. Cancer disease not only significantly reduces the quality of life in individuals, but also causes various side effects if not managed. The purpose of this study was to investigate the effects of aerobic exercise and resistance exercise on health-related problems in cancer patients. Methods : This study searched for studies that applied aerobic exercise and resistance exercise to cancer patients reported in search engines (google scala, dbpia, and pubmed) from 2017 to 2022. Six randomized controlled trials and two systematic reviews and meta-analyses were used for analysis in our study. “physical activity”, “exercise”, “aerobic exercise”, “resistance exercise”, and “cancer patient” were the main search terms. The data included aerobic exercise, resistance exercise, cancer patients’ muscle strength, physical strength, quality of life, and physical activity. Results : According to the eight studies that met the criteria included in this review study, it was found that aerobic exercise and resistance exercise had an effect on the increase in physical fitness, muscular strength, quality of life, and range of motion in cancer survivors. Conclusion : It was confirmed that aerobic exercise and resistance exercise are safe and effective interventions that can be applied to cancer patients without side effects. A limitation of this study is that it did not examine cancer diseases in various population groups such as the elderly and children. Therefore, in future studies, studies that consider specific details such as age, gender, type of cancer, and physical differences are needed.