http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
태양광 시스템의 인공신경망 기반 I-V 특성 모델링 향상
박지원,이종환,Park, Jiwon,Lee, Jonghwan 한국반도체디스플레이기술학회 2022 반도체디스플레이기술학회지 Vol.21 No.3
The current-voltage modeling plays an important role in characterizing photovoltaic systems. A solar cell has a nonlinear characteristic with various parameters influenced by the external environments such as the irradiance and the temperature. In order to accurately predict current-voltage characteristics at low irradiance, the artificial neural networks are applied to effectively quantify nonlinear behaviors. In this paper, a multi-layer perceptron scheme that can make accurate predictions is employed to learn complex formulas for large amounts of continuous data. The simulated results of artificial neural networks model show the accuracy improvement by using MATLAB/Simulink.
특발성 폐섬유증의 통합의료 협진 모델 개발을 위한 의료진 및 환자 대상 설문조사 연구
박지원,이범준,신정원,진수현,양정민,김수덕,김관일,최혜숙,정희재,Jiwon Park,Beom-Joon Lee,Jeong-Won Shin,Su-Hyun Chin,Jung-Min Yang,Sooduk Kim,Kwan-Il Kim,Hye Sook Choi,Hee-Jae Jung 대한한방내과학회 2023 大韓韓方內科學會誌 Vol.44 No.3
Objective: In this study, a questionnaire survey was conducted for doctors and patients to obtain basic data necessary for the development of an integrated medical system for idiopathic pulmonary fibrosis (IPF). Methods: Questionnaires were developed separately for doctors and patients through an expert group meeting. The survey subjects were recruited online and offline, and finally, responses from 231 doctors and 59 patients were used for statistical analysis. Results: The most important parts in the treatment of IPF for both doctors and patients were the "improvement of respiratory symptoms," "improvement of quality of life," and "prevention of disease progression." Antifibrotic agents were prescribed at a high rate, and 100% of the specialists in Western medicine (WM) and 45.8% of patients reported experiencing side effects. As for the additional payment costs that patients considered as affordable for an integrated medical system, "under 50,000 won (about 38$)" was reported the most in both doctor and patient groups. With regard to the reasons for their reluctance to recommend an integrated medical system for IPF, specialists in WM responded highly to "uncertain evidence for treatment effectiveness." Regarding complementary and alternative medicine therapies that can be beneficial in patients with IPF, "lifestyle management," "diet management," "herb," "relaxation therapy," and "psychotherapy" were ranked high in both doctor and patient groups. Conclusions: In this study, a questionnaire survey on IPF was conducted to review actual treatment status, analyze shortcomings, and identify considerations for the development of an integrated medical system for IPF in the future.
해양플랜트용 500 MPa급 후판강의 모재 및 HAZ의 미세조직과 기계적 특성의 상관관계
박지원,조성규,조영욱,신건철,권용재,이정구,신상용,Park, Jiwon,Cho, Sung Kyu,Cho, Young Wook,Shin, Gunchul,Kwon, Yongjai,Lee, Jung Gu,Shin, Sang Yong 한국재료학회 2020 한국재료학회지 Vol.30 No.3
In this study, two types of thick steel plates are prepared by controlling carbon equivalent and nickel content, and their microstructures are analyzed. Tensile tests, Vickers hardness tests, and Charpy impact tests are conducted to investigate the correlation between microstructure and mechanical properties of the steels. The H steel, which has high carbon equivalent and nickel content, has lower volume fraction of granular bainite (GB) and smaller GB packet size than those of L steel, which has low carbon equivalent and nickel content. However, the volume fraction of secondary phases is higher in the H steel than in the L steel. As a result, the strength of the L steel is higher than that of the H steel, while the Charpy absorbed energy at -40 ℃ is higher than that of the L steel. The heat affected zone (HAZ) simulated H-H specimen has higher volume fraction of acicular ferrite (AF) and lower volume fraction of GB than the HAZ simulated L-H specimen. In addition, the grain size of AF and the packet sizes of GB and BF are smaller in the H-H specimen than in the L-H specimen. For this reason, the Charpy absorbed energy at -20 ℃ is higher for the H-H specimen than for the L-H specimen.
내재적 학습 동기와 정서적 조직 몰입의 관계 연구: 무형식 학습의 매개 효과를 중심으로
박지원 ( Park Jiwon ),조대연 ( Cho Dae-yeon ) 한국인력개발학회 2018 HRD연구 Vol.20 No.3
본 연구는 조직 구성원의 정서적 몰입, 내재적 학습 동기, 무형식 학습이 어떠한 구조적인 관계를 갖는지 이론모형을 제시하고 이를 실증적으로 검증하였다. 구체적으로, 구성원의 내재적 학습 동기와 무형식 학습이 정서적 몰입에 어떠한 영향을 미치는지 살펴보고, 또한 내재적 학습 동기와 정서적 몰입의 관계에 있어 무형식 학습의 매개 효과에 대해 검증하였다. 증권회사 종사자 393명을 통해 수집된 자료를 분석한 결과, 첫째, 내재적 학습 동기는 무형식 학습과 정서적 조직 몰입에 정적 영향을 주었으며, 둘째, 무형식 학습 또한 정서적 몰입에 정적 영향을 주었다. 마지막으로, 무형식 학습은 내재적 학습 동기와 정서적 몰입의 매개역할을 하였다. 이러한 연구 결과를 바탕으로 관련된 논의를 전개하고, 시사점을 제안하였다. The purpose of this research was to investigate the structural relationships among intrinsic learning motivation, informal learning, and affective commitment to organizations. Specifically, we tested the effects of employees’ intrinsic learning motivation and informal learning on affective commitment and the mediating effect of informal learning on the relationship between intrinsic learning motivation and affective commitment. Data collected from a sample of 393 employees from Korean stock companies were used in the structural equation modeling (SEM) analysis. The results suggested that employees’ intrinsic learning motivation and engagement of informal learning activities positively influence employee affective commitment to the organization. Moreover, it turned out that informal learning mediated the influence of intrinsic learning motivation on affective commitment. Based on findings of this study, implications for research and practice were discussed.
COVID-19 환자를 간호하는 중환자실 간호사의 소진 영향요인
박지원(Jiwon Park),차지영(Chiyoung Cha) 한국자료분석학회 2023 Journal of the Korean Data Analysis Society Vol.25 No.2
본 연구의 목적은 COVID-19 환자를 간호하는 중환자실 간호사의 COVID-19 감염 스트레스, 증상 클러스터, 사회적 지지가 소진에 미치는 영향을 확인하는 것이다. 자료수집은 2022년 6월 6일부터 6월 25일까지 경기도 소재의 상급종합병원 1곳에서 COVID-19 환자를 간호하는 중환자실 간호사로 총 임상 경력 1년 이상이며 COVID-19 환자를 최근 12개월 중 30일 이상 직접 간호한 간호사 121명을 대상으로 하였다. 대상자의 일반적 특성, COVID-19 감염 스트레스, 증상 클러스터, 사회적 지지, 소진을 조사하였으며 수집 자료는 SPSS 28.0을 이용하여 t-검정, 분산분석, 상관관계분석, 위계적 회귀 분석으로 분석하였다. 최종회귀모형의 설명력은 40.4% (F=12.63, p<.001)이었으며, COVID-19 환자를 간호하는 중환자실 간호사의 소진에 영향을 미치는 요인은 COVID-19 감염 스트레스(β=.34, p<.001), 우울 클러스터(β=.29, p=.005), 사회적 지지(β=-.17, p=.036)로 COVID-19 감염 스트레스, 우울 클러스터가 높을수록 소진이 높았으며 사회적 지지가 낮을수록 소진이 높게 나타났다. 따라서 COVID-19 환자 간호에 참여하는 중환자실 간호사의 소진을 줄이기 위하여 신종 감염병 관리에 대한 프로토콜 개발 및 신종 감염병 환자를 간호하는 간호사들의 신체적, 정서적 지지자원 제공을 위한 시스템 확립을 위한 노력을 해야 할 것이다. The purpose of this study was to investigate the factors that influence burnout among intensive care unit nurses caring for Coronavirus Disease-19 (COVID-19) patients. For this cross-sectional study, a convenience sampling strategy was used to recruit 121 intensive care unit nurses with experience of taking care for confirmed or suspected COVID-19 patients. Data were collected from June 6 to June 25, 2022. Descriptive statistics, factor analysis, t-test, ANOVA, Scheffe test, Pearson’s correlation, and hierarchical multiple regression analysis were employed for data analysis. The final regression model had an explanatory power of 40.4% (F=12.63, p<.001): COVID-19 infection stress (β=.34, p<.001), depression symptom cluster (β=.29, p=.005), and social support (β=-.17, p=.036) affected burnout. The findings of this study suggest that health professionals should be equipped with procedures for the prevention of emerging infectious diseases, and a psychological support system should be built to promote social support and alleviate depressive symptoms.