Tailoring of Optoelectronic Properties of InAs/GaAs Quantum Dot Nanosystems by Strain Control

이웅,신기삼,명재민 대한금속·재료학회 2009 ELECTRONIC MATERIALS LETTERS Vol.5 No.4

Full three-dimensional numerical analysis based on continuum elasticity and model solid theory has been carried out to evaluate some possible means of tailoring the optoelectronic properties of InAs/GaAs quantum dot (QD) nanosystems. Numerical results predicted that while the stacking period control leads to the shifts in valence band edges, incorporation of InxGa1-xAs ternary strain relief layer (SRL) causes composition-dependent shifts in conduction band edges. On the other hand, modification of the SRL shape itself did not yield significant changes in the confinement potentials. It is therefore suggested that strain control by incorporation of ternary intermediate layers combined with geometry controls, would allow greater flexibility in the tailoring of the opto-electronic characteristics of QD-based systems.

재중 아나키스트 독립운동가 이달의 중국현대문학 비평

이웅,뉴린제 한국중국현대문학학회 2020 中國現代文學 Vol.0 No.93

The anarchist and anti-Japanese soldier, Lee Dal(1910-1942) who was the member of the South China Korean Youth League and the Korean volunteer corps, wrote many articles for Chinese and Korean publications. His most noted works were critiques about modern Chinese literature on Korean publications from Jan. 1935 to the Spring of 1936. Focusing on Ba Jin’s collection of short stories, Revenge, he wrote a critique about Ba Jin(巴金)’s attitude of writing. Instead of emphasizing the noble sacrifices made in war, Lee Dal pursued human justice and humanity beyond the narrow scope of nationalism or distorted patriotism. He had high regards for Guo Mo-ruo(郭沫若)’s rebellious spirit as an enlightening light and indomitable spirit in dark times. But he criticized severely Mao Dun(茅盾)’s trilogy, Disillusionment, Disturbance, Persuit. He claimed that Mao Dun’s writings sowed seeds of depression and disillusionment among young readers. And Lee Dal emphasized that profound significance in life could only be found through strenuous efforts. As an anarchist and anti-Japanese soldier, Lee Dal spent his whole life pursuing a free and equal society and wholly devoted himself to the independence of his nation.

Regional Borders and Trade in Asia

이웅,배찬권 한국외국어대학교 인도연구소 2014 남아시아연구 Vol.19 No.3

This paper investigates the effect of regional borders on trade in Asia. The regional borders define the three regions of Asia: South, Southeast, and East Asia. Regional trade indicates the flows of trade within a region, whereas regional border trade means trade across regions. A gravity model is augmented with the region dummies to estimate the regional border effects that capture any and all time-invariant factors promoting or impeding regional trade. The main finding is that regional border effects are asymmetric on the three regions in Asia. There is a large and significant regional border effect on South Asia, small on Southeast Asia, and negligibly negative on East Asia. The significant and positive regional border effect in South Asia suggests that countries share intrinsic factors facilitating trade between the countries in this region. Although the regional border effect of Southeast Asia is positive, its magnitude shows little difference between its regional trade and regional border trade. Finally, the estimate on East Asia presents a completely different picture from the actual data. It implies that there exist some factors leading to active regional border trade between East Asia and other Asian regions.

항우울제의 사용과 체중

이웅,조성준,Lee, Ung,Cho, Sung Joon 대한생물정신의학회 2020 생물정신의학 Vol.27 No.2

Depressive disorder is a very common disease, clinical manifestations vary, and the mechanism is not clear. Therefore, a pharmacotherapy is very important to achieve sufficient therapeutic effect, but the choice of drug is not easy due to the occurrence of side effects of treatment and confusion with clinical features. It is easy to overlook the side effects of weight gain with antidepressants compared with antipsychotics, but they are frequently observed in clinical settings. The first-generation antidepressants have higher weight gains than selective serotonin reuptake inhibitors. Serotonin norepinephrine reuptake inhibitors are observed to have less weight gain, and dopamine norepinephrine reuptake inhibitors have weight loss effect due to decreased appetite. Mirtazapine, an atypical antidepressant, has a strong histamine H1 blockade, and gains weight gain from short-term use. The effects of desvenlafaxine, vortioxetine, and agomelatin on weight, which have recently been increasing in use, have not been largely identified. For better compliance, studies on weight gain due to the use of antidepressants are needed.

꿩 기르기

이웅 대한양계협회 1990 월간 양계 Vol.22 No.12

악취방지법 시행에 따른 하수처리시설의 대응방안

이웅,Lee, Ung 한국환경기술인연합회 2005 환경기술인 Vol.22 No.11

유기질 비료의 시용이 '신고' 배 실생묘의 생육 특성과 병 발생률에 미치는 영향

이웅,김월수,최현석,Li, Xiong,Kim, Wol-Soo,Choi, Hyun-Sug 한국유기농업학회 2010 韓國有機農業學會誌 Vol.18 No.1

The study was conducted to investigate effects of different organic fertilizers on 'Niitaka' pear tree performances in a controlled greenhouse. The four 'Niitaka' pear seedling trees per treatment were grown in a greenhouse for 6 months. Each pot was filled with control, rice bran (RB), coffee bran compost (CBC), and the mixture (RCC) of RB + CBC + chitin incubated compost (CIC). Each pot was filled with 1:1:1 (v/v/v) of soil : sand : fertilizer, and control, RB, CBC, CIC, and RCC were applied as treatments. Root fresh weights and root activities were increased by all the organic fertilizers, especially by RCC. RCC treated trees had the highest tree height and thickest tree trunk, and all organic fertilized trees showed increased tree growth compared to the control. The more diseased and damaged degrees on the leaf by spider mites increased leaf falling rates on all the treatments. The reduced diseased and healthy leaves were found on RCC treated trees that had better tree performance. Also, all the organic fertilized trees seemed to prevent the occurrence of disease in the leaf. Therefore, the organic fertilizer applications could be a good strategy to obtain better tree performance and maintain healthy seedlings in the nursery market or young organic pear orchard. '신고' 배 실생묘의 수체 생육 특성에 관한 결과를 통해서, 충분히 부숙된 유기질 비료의 시용은 뿌리 생체중 및 세근의 양이 많아지고 근 활력이 높아졌을 뿐만 아니라 지상부 수체 생육이 좋아지는 효과를 나타냈다. 과원 내 유목묘의 궁극적인 목적은 왕성한 수체 생장으로 과실 생산을 조기에 달성하는 것인데, 본 실험 결과를 통해서 유기질 비료 처리로 초기 과원재배의 궁극적인 목적을 어느 정도 이룰 수 있을 것으로 판단된다. 또한, 건강한 수체 생산으로 응애의 피해에 의한 낙엽률이나 엽 피해도를 감소시키는 결과를 가져와서 병충해에 대한 내성을 제고함을 알 수 있었다. 따라서 토양 내 충분히 부숙된 유기질 복합 퇴비 시용은 빠른 시일 내에 수체 생장과 안정성을 확보할 수 있다는 측면으로, 육묘장이나 기타 과수 실생묘에 이용될 수 있을 것으로 판단된다

장애인거주시설 생활지도원의 이직의도 영향요인 연구

이웅,엄명용 한국장애인재활협회 부설 재활연구소 2019 재활복지 Vol.23 No.3

The primary goal of this study was to investigate the influencing factors of turnover intention of careworkers in the residential facilities for the disabled. A self-reported questionnaire survey was employed for the data collection. The data was collected from 536 careworkers working in 39 residential facilities for the disabled. The results showed firstly that task efficacy negatively affected on turnover intention of careworkers. Secondly, facilitiy size, education and trainning program, innovative and goal-oriented leadership of mid-level manager had an negative and positive effect on turnover intention respectively. Thirdly, as for the interaction effect between individual and organization factors, there were postive effects between task efficacy and facility size, and negative effects between task efficacy and innovative leadership of mid-level manager. Based on the results of the study, we presented theoretical and practical implications needed to manage turnover intention of careworkers in residential facilities for the disabled. 본 연구의 목적은 장애인거주시설 생활지도원의 이직의도 영향요인을 개인 및 조직수준에서 다차원적으로 검증하는 것으로 가설검증을 위한 이론적 틀로써 조직이론인 상황이론과 심리학 이론인 자기결정이론을 종합적으로 활용하였다. 검증을 위해 국내 장애인거주시설 50개소를 대상으로 우편설문조사를 실시하였고, 최종적으로 시설 39개소, 생활지도원 536명을 분석대상으로 하였다. 분석결과, 개인수준 요인 중 과업효능감이 생활지도원의 이직의도에 통계적으로 유의미한 효과가 나타났고, 조직수준 요인 중에는 조직규모와 사무국장의 혁신적, 목적지향적 리더십이 유의미한 효과를 보였다. 다음으로 개인 및 조직수준 간 상호작용 효과를 검증한 결과, 개인수준인 생활지도원의 과업효능감은 조직수준인 조직규모, 그리고 중간관리자의 혁신적 리더십과 통계적으로 유의미한 상호작용 효과가 나타났다. 이러한 연구결과를 토대로 장애인거주시설 생활지도원의 이직의도를 관리할 수 있는 실천적, 정책적 방안을 제언하였다.

The Decline in the Quit Rate during the 1920s: The Role of Labor Demand Revisited

이웅,윤여준 경제사학회 2021 經濟史學 Vol.45 No.1

This paper revisits the debate on the decline in the quit rate in the United States’ manufacturing sector during the 1920s. As an alternative to analyzing previously used labor market indicators, this paper utilizes the Help Wanted Advertising Index as a proxy for labor demand. It also incorporates net migration as a source of labor turnover. The results contradict a common view in the economic history literature. The shortage of labor demand yields a satisfactory and sufficient explanation for the decline in the quit rate. On the other hand, factors, such as changes in employment policies that have been believed to be important, played more limited roles.

장애문제의 주요 개념 비판 및 대안 모색 : 인정개념으로의 패러다임 전환을 위하여

이웅,손다진 한국사회복지학회 2022 한국사회복지학회 학술대회 자료집 Vol.2022 No.10