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Effects of Self-Help group program on patients with chronic obstructive pulmonary disease
( Jonggeol Jang ),( Kwan Ho Lee ),( Jin Hong Chung ),( Kyeong Cheol Shin ),( Eun Young Choi ),( Hyun Jung Jin ),( June Hong Ahn ),( Mi Sook Lee ),( So Hee Bang ),( Da Yeong Park ) 대한결핵 및 호흡기학회 2019 대한결핵 및 호흡기학회 추계학술대회 초록집 Vol.127 No.-
Purpose: Psychological problem such as anxiety and depression are the main comorbidities of COPD, and the prevalence is reported at 17-55%. However, the management of these psychological problems in the treatment of COPD is not well known. The purpose of this study is to provide a self-help group (SHG) program for patients with COPD and to assess the effects on mental disorders such as anxiety, depression and self-esteem. Method: This study was conducted on patients over 40 years of age who were diagnosed with COPD. We recruited the subjects and conducted three sessions of SHG programs at intervals of three months for each group. SHG program consisted of 20 minutes of education on the overall management of COPD, followed by 50 minutes of sharing the knowledge and experience between patients freely, and then followed by 20 minutes of rehabilitation exercises. Result: From 2017 to 2018, a total of 18 patients were enrolled. The mean age was 68.22 ± 1.45. The mean FEV1 (% predicted) was 57.17 ± 14.46 and Group B by GOLD criteria was the most common group (66.7%). After conducting SHG program, the Hospital Depression Scale was significantly decreased from 8.28 ± 4.10 to 6.89 ± 2.89 (p=0.011). The Rosenberg self-esteem scale also showed significant improvement of 26.72 ± 5.96 and 29.00 ± 5.27 (p=0.026) before and after the SHG program. COPD Assessment Test, modified Medical Research Council Dyspnea Scale which is associated with symptom control did not show any significant change. Conclusion: Three SHG sessions consisting of 90 minutes showed improvement in patients’ depression and self-esteem. Further study is needed on the emotional effects of SHG in the future.
Evaluation of soft mist inhaler technique and effects of educational training
( Jonggeol Jang ),( Kwan Ho Lee ),( Jin Hong Jung ),( Kyeong Cheol Shin ),( Eun Yeung Choi ),( Hyun Jung Jin ),( June Hong Ahn ),( Kyung Soo Hong ),( Young Seok Lee ),( Euna Lee ),( Mi Jung Nam ) 대한결핵 및 호흡기학회 2019 대한결핵 및 호흡기학회 추계학술대회 초록집 Vol.127 No.-
Purpose: Inhaled medications play a key role in symptom control and prevention of acute exacerbation in patients with chronic obstructive pulmonary disease (COPD). Errors in inhaler handling are common and may result in suboptimal disease control. The aim of this study was to assess the misuses of soft mist inhaler (SMI) and determines the effects of training on inhaler technique (IT). Method: The study subjects included patients diagnosed with COPD, above the age of 40 and who had been using SMI for more than 3 months. The patients received two sessions of face-to-face educational intervention of IT at the start of study and at the 3 months follow up visit. Primary outcome was IT. Secondary outcomes were symptom control, quality of life, medication adherence and Feeling of Satisfaction with Inhaler (FSI-10). Result: Of 145 patients, 125 (86.2%) subjects made at least one error and 66 (45.5%) subjects made at least one critical error at baseline. The risk of error at the baseline was increased in patients with low degree of education (p=0.004) and poor medical adherence (p=0.014). After education, the number of subjects who made at least one error or at least one critical error were both decreased to 49 (33.8%) and 18 (12.4%), respectively. Poor adherence rate was decreased after education (20.7% vs. 11.7%, p=0.038). FSI-10 was also improved after education (43.73±6.51 vs. 49.00±0.00, p<0.001). Quality of life assessed using COPD assessment test and EQ-5D showed no significant change after education. Conclusion: Poor SMI technique is common among patients with COPD, and intensive training in inhaler use can improve IT, medical adherence and FSI-10. Educational intervention in inhaler use is a key part in COPD management.
Na, Jonggeol,Kshetrimayum, Krishnadash S.,Jung, Ikhwan,Park, Seongho,Lee, Yongkyu,Kwon, Okbae,Mo, Yonggi,Chung, Jongtae,Yi, Jongyeol,Lee, Ung,Han, Chonghun Elsevier 2018 CHEMICAL ENGINEERING AND PROCESSING Vol.128 No.-
<P><B>Abstract</B></P> <P>Design and operation of pilot-scale (1.0 BDP) compact GTL process comprising of reforming section, CO<SUB>2</SUB> separating section, and Fischer-Tropsch (FT) synthesis section is presented. Detailed systematic computer-aided design procedure adopted to design a modular 0.5 BPD pilot-scale microchannel reactor used in the pilot plant operation is also presented. The modular microchannel FT reactor block design consists of 528 process channels and numerous coolant channels arranged in cross-cocurrent-cross configuration for adequate heat removal. On average 98.27% CH<SUB>4</SUB> conversion to syngas in reforming section comprising of a pre-reformer unit and a tri-reformer unit, and CO<SUB>2</SUB> separation rate of 36.75% along with CO/H<SUB>2</SUB> reduction from 2.67 to 2.08 in CO<SUB>2</SUB> membrane separation section were achieved from the entire pilot plant operation duration of 450 h. Parallel operation of FT microchannel reactor and multitubular fixed-bed type FT reactor for comparison showed that multitubular fixed-bed type reactor undergoes reaction runaway for the applied process conditions, while microchannel reactor showed adequate temperature control. Overall CO conversion of 83% and adequate temperature control at three different applied operating temperatures of 220 °C, 230 °C, and 240 °C subsequently during the 139 h FT reactor operation demonstrated the appreciable performance of the present microchannel FT reactor designed.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Design and operation of pilot scale (1.0 BDP) compact GTL process. </LI> <LI> Systematic computer-aided design procedure is formulated. </LI> <LI> Reactor modeling and optimization using CFD and cell-coupling methods. </LI> <LI> Parallel operation FT microchannel reactor and multitubular fixed bed reactor. </LI> <LI> The designed reactor gives satisfactory temperature control. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
Na, Jonggeol,Jeon, Kyeongwoo,Lee, Won Bo Elsevier 2018 Chemical engineering science Vol.181 No.-
<P><B>Abstract</B></P> <P>High-accuracy gas dispersion models are necessary for predicting toxic gas movement, and for reducing the damage caused by toxic gas release accidents in chemical processes. In urban areas, where obstacles are large and abundant, computational fluid dynamics (CFD) would be the best choice for simulating and analyzing scenarios of accidental release of toxic chemicals. However, owing to the large computation time required for CFD simulation, it is inappropriate in emergency situations and in real-time alarm systems. In this study, a non-linear surrogate model based on deep learning is proposed using a variational autoencoder with deep convolutional layers and a deep neural network with batch normalization (VAEDC-DNN) for real-time analysis of the probability of death (P<SUB>death</SUB>). VAEDC can extract representation features of the P<SUB>death</SUB> contour with complicated urban geometry in the latent space, and DNN maps the variable space into the latent space for the Pdeath image data. The chlorine gas leak accident in the Mipo complex (city of Ulsan, Republic of Korea) is used for verification of the model. The proposed model predicts the P<SUB>death</SUB> image within a mean squared error of 0.00246, and compared with other models, it exhibits superior performance. Furthermore, through the smoothness of image transition in the variable space, it is confirmed that image generation is not overfitting by data memorization.</P> <P><B>Highlights</B></P> <P> <UL> <LI> The gas leak models of industrial scale using CFD is developed. </LI> <LI> Variational autoencoder is used for data reducing and feature extraction. </LI> <LI> Deep neural network is used for mapping the variable space into the latent space. </LI> <LI> 2D contour of probability of death is generated by surrogate model. </LI> <LI> Proposed surrogate model can predict CFD result with superior performance. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
전자금융거래법 개정법안에 대한 전문위원 검토보고서 분석
이종걸(Lee Jonggeol) 한국정보법학회 2013 한국정보법학회 정기세미나 발표자료 Vol.- No.16
“개정안에 대하여 금융위원회는 공인인증서와 동등한 안전성을 가진 인증기술이 없는 상황에서 13년간 사용되어 온 공인인증제도를 당장에 철폐하는 경우 금융회사 및 이용자들의 혼란과 전자 금융사고가 증가할 우려가 있고, 전자금융 인증체계 개편 관련 연구용역(6~9月)을 실시 중이므 로 금년 하반기까지 충분히 검토 후 법 개정의 추진여부가 결정될 필요가 있다는 의견을 제시함.”
여성패션모델의 주관적 신체상과 모델효능감, 직무만족도와의 관계
김종걸(Kim, JongGeol) 한국모델콘텐츠학회 2020 한국모델콘텐츠학회지 Vol.1 No.1
The purpose of this study was to investigate the relationship among female fashion models’ subjective body image, model efficacy and job satisfaction. The sample of 300 female fashion models in Korea was extracted by convenience sampling, one of non-probability sampling methods, and the questionnaire was collected through selfadministration method. Data processing was performed by frequency analysis, exploratory factor analysis (EFA), reliability analysis, and multiple regression analysis and the results are as follow. First, female fashion models’ subjective body image was shown to have a positive (+) effect on the model efficacy. Second, female fashion models’ subjective body image was shown to have a positive (+) effect on the job satisfaction. Third, model efficacy was shown to have a positive (+) effect on the job satisfaction. Through this study, it was found that the subjective body image perceived by the female fashion model has a positive effect on necessary various variables to act as a model. Therefore, through this study, it was found that it is necessary to discuss female fashion model teaching methods, curriculums and so on to cultivate and maintain female fashion models’ positive body image 본 연구는 여성패션모델이 인지한 주관적 신체상과 모델효능감, 직무만족도의 관계를 규명하고자 실시하였다. 국내 여성패 션모델 300명을 대상으로 진행하였으며, 표본추출은 비확률표집방법(non-probability sampling)중 하나인 편의표본표집법 (convenience sampling)을 사용하여 표본을 추출하였고, 자기평가기입법을 통해 설문지를 수집하였다. 자료처리는 빈도분석 (frequency analysis), 탐색적 요인분석(Exploatory Factory Anaysis: EFA), 신뢰도 분석, 다중회귀분석(multiple regression analysis)을 실시하였으며, 그 결과는 다음과 같다. 첫째, 여성패션모델의 주관적 신체상은 모델효능감에 정(+)적인 영향을 미치는 것으로 나타났다. 둘째, 여성패션모델의 주관적 신체상은 직무만족도에 정적(+)인 영향을 미치는 것으로 나타났다. 셋째, 모델효능감이 직무만족도에 정적(+)인 영향을 미치는 것으로 나타났다. 이 연구를 통해서 여성패션모델이 인지하는 주 관적 신체상은 모델로서 활동하는데 필요한 다양한 변인에 긍정적인 영향을 미친 다는 것을 알 수 있었다. 따라서 이 연구 를 통해 여성패션모델들이 긍정적인 신체상을 함양하고 유지할 수 있게 하는 여성패션모델 지도 방법, 교육과정 등의 논의 가 필요함을 알 수 있었다