Gaussian process bayesian optimization and parameter estimation of water lean CO₂ capture pilot plant

이웅,나종걸,김정남,이희원,이현주 한국공업화학회 2019 한국공업화학회 연구논문 초록집 Vol.2019 No.0

Herein, we present a surogate model based bayesian optimization and parameter estimation for a CO₂ capture process with a new water lean solvent. The water lean solvent, K2Sol, is a sterically hindered diamine and the hindered amine site makes K2Sol easily forms bicarbonate resulting the high absorption capacity. The surogate model based optimization and parameter estimation are carried out according to input and output relationship of experiments, thus expensive optimization model construction and property estimation can be avoided. According to the pilot plant experiment, the optimum regeneration energy of Monoethanolamine (MEA) and K2Sol respectively shows 4.3 and 2.8 GJ/tCO₂ indicating that K2Sol requires only 65% of regeneration energy of MEA.

장애인거주시설 생활지도원의 직무특성이 직무만족에 미치는 영향: 조직신뢰의 조절효과를 중심으로

이웅 한국장애인복지학회 2020 한국장애인복지학 Vol.47 No.47

This study is aimed to examine the effect of job characteristics on the job satisfaction of careworkers in the residential facilities for the disabled. The research was conducted on 50 residential facilities for the disabled and a self-recorded questionnaire survey was performed. The total of 42 residential facilities data were collected and finally 323 careworkers among 24 residential facilities data were used for analysis. The major findings of this study are as follows. Firstly, task significance and autonomy statistically-significant affected on job satisfaction of careworkers among core job characteristics. Namely, job satisfaction of careworkers was higher when task significance and autonomy was higher. Secondly, organization trust had not only direct effect but also interaction effect with autonomy on job satisfaction of careworkers. In other words, job satisfaction of careworkers was higher when organization trust was higher, and the higher organization trust, the higher positive effect of autonomy to job satisfaction of careworkers. Based on the results of the study, I presented an political and practical implications needed to manage and develop job satisfaction of careworkers in residential facilities for the disabled. 본 연구는 장애인거주시설 생활지도원의 직무만족 영향요인을 직무특성이론을 적용하여 검증하는 것을 목적으로 한다. 이를 위해 전국 장애인거주시설 50개소를 대상으로 우편조사를 통한 자기기입식 설문조사를 실시하였고, 최종적으로 수집된 42개소 가운데 본 연구에서는 장애유형 별 거주시설 24개소에서 종사하는 생활지도원 323명을 최종 분석대상으로 삼았다. 주요 분석결과는 다음과 같다. 먼저, 직무특성 요인 가운데, 과업중요성과 자율성이 생활지도원의 직무만족에 통계적으로 유의미한 영향을 미치는 것으로 나타났다. 즉, 과업중요성과 자율성 모두 높을수록 생활지도원의 직무만족은 높아지는 결과를 보였다. 한편, 조절변수로 설정한 조직신뢰는 생활지도원의 직무만족에 직접적으로 영향을 미칠 뿐만 아니라 핵심직무특성요인 중 하나인 자율성과 상효작용효과가 있는 것으로 나타났다. 다시 말해서, 조직신뢰가 높을수록 생활지도원의 직무만족은 높아지며, 조직신뢰는 자율성이 높을수록 직무만족이 높아지는 관계를 보다 강화하는 효과를 보였다. 본 연구는 이러한 분석결과를 바탕으로 장애인거주시설 생활지도원의 직무만족을 향상 및 관리에 필요한 제언을 하였다.

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.

포스트바디 담론과 기술의 장애인복지적 함의 : 벌거벗은 몸(naked body)으로서 장애

이웅,엄명용 한국사회복지학회 2017 한국사회복지학회 학술대회 자료집 Vol.2017 No.10

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

흡착전처리를 이용한 UF공정에서의 입자거동과 막오염에 관한 연구

이웅,박규홍,김성순 대한환경공학회 1997 대한환경공학회 학술발표논문집 Vol.1997 No.12

메가시티의 복합안보위협과 거버넌스 구축 및 대응 전략 ―군의 역할을 중심으로―

이웅 한일군사문화학회 2021 한일군사문화연구 Vol.31 No.-

This article mainly focused on the proliferation of the mega city, which has become a major trend that prevails the world and on the security vulnerability in the urban area, which was not discussed enough in discussions about emerging theoretical discussions on non-traditional security threats(emerging security). To review this research topic, this article considered theoretical discussions on non-traditional security treats carefully. With this process, the mega cities’ essential characters and vulnerabilities, which are derived from overpopulation and complexity of various infrastructures, acts as a major variable in the security has been suggested. In details of policy development proposals are as follows. Firstly, it is necessary to strengthen the establishment of a governance response system to cope with the new and complex security threats of mega-cities to reduce the cascade of disasters and strengthen resilience. At second, in the governance response system, it is necessary to strengthen military intervention (human and material resources) in preparation for complex security threats that are direct or indirect in all domains. At third, it is necessary to establish a smart response infrastructure incorporating advanced science and technology against complex security threats in consideration of future trends. Considering the spread of megacity, the existing countermeasures against emerging security threats in urban areas are not sufficient. It is necessary to recognize the possibility that various security threats may overlap and occur simultaneously, and a governance level response system needs to be designed. 본고에서는 전 세계적으로 나타나는 주요 트렌드로서 메가시티 확산과 관련하여, 기존의 신흥안보 관련 논의에서 충분히 다루어지지 않았던 도시 지역에서의 안보적 취약성 증대 현상을 주목하였다. 그리하여 최근 부상하는 비전통적 위협과 관련된 이론적 논의를 검토하고, 상주인구의 밀집 현상과 각종 기반 체계의 복잡성 등으로부터 비롯되는 메가시티의 본질적 속성이 안보적 측면에서 주요 변수로써 작용함을 군사적 관점에서 고찰하였다. 그리고 이에 대한 분석을 토대로 범국민적 차원에서의 복합적인 안보위협에 관한 범국가적 거버넌스 구축 필요성 및 추진 전략에 대해 군의 역할을 중심으로 제시하였다. 이에 따른 구체적인 정책개발 제언사항은 다음과 같다. 첫째, 메가시티의 새로운 복합안보위협에 대응하는 거버넌스 대응체계 구축을 강화하여 재난의 상호연쇄적 효과를 감소시키고 회복력을 제고시켜야 한다. 둘째, 둘째, 거버넌스 대응체계에서는 모든 영역(all-domains)에서의 직・간접적인 복합안보위협에 대비하여 군사적 개입(인적・물적 자원)을 강화할 필요가 있다. 셋째, 미래 트렌드를 고려하여 복합안보위협에 대한 첨단과학기술을 접목시킨 스마트 대응 인프라를 수립해야 한다. 전 세계적 트렌드인 메가시티 확산 추세를 고려 시, 도시지역에서는 새롭게 대두되는 안보위협에 대해 기존의 대응방식만으로는 충분치 않다. 다양한 안보위협요인이 중첩되어 동시다발적・복합적으로 발생할 가능성을 인식하고, 이에 대한 대응체계가 거버넌스 차원에서 설계될 필요가 있다.

Chloroplast DNA assessment of anagenetic speciation in Rubus takesimensis (Rosaceae) on Ulleung Island, Korea

이웅,양지영,정금선,박재홍,Masayuki Maki,김승철 한국식물학회 2017 Journal of Plant Biology Vol.60 No.2

Two major modes of speciation, i.e., cladogenesis and anagenesis, have often been used to explain the generation of distinct plant diversity on oceanic islands. Anagenetic speciation is of particular interest to plant endemics on Ulleung Island, Korea because, of nearly 40 endemics, approximately 88% or even all endemic species are thought to be anagenetically derived. Despite its important role in Ulleung Island, the full scope of the anagenetic speciation and the genetic consequences of this speciation mode have been limited to a very few families (i.e., Apiaceae, Sapindaceae, and Ranunculaceae). Based on extensive sampling (a total of 322 individuals) and trnL-F cpDNA noncoding sequences, we conducted phylogenetic and haplotype network analyses for the species pair of Rubus crataegifolius (continental progenitor)-R. takesimensis (insular derivative). Rubus takesimensis on Ulleung Island is not a monophyletic group, suggesting at least two independent introductions from geographically and genetically divergent source populations. No significant reduction in cpDNA haplotype diversity and genetic differentiation in R. takesimensis are consistent with expectations from the anagenetically derived species. A further study based on comprehensive sampling and more variable molecular markers will shed light into the genetic consequences of anagenetic speciation in Rubus on Ulleung Island.

株式과 社債에 關한 商法規定과 그 會計處理 : 주식과 사채에 관한 상법규정과 그 회계처리

이웅해 釜山大學校 商科大學 1963 釜山商大學報 : 부산대 Vol.9 No.1

[Culture] Book - 분노의 시대 외

이웅 연합뉴스 동북아센터 2018 마이더스 Vol.2018 No.7