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건설장비의 배출가스 데이터 기반 대기오염물질 배출량 예측 시스템
노재윤 ( Noh¸ Jaeyun ),김유진 ( Kim¸ Yujin ),김수민 ( Kim¸ Sumin ),한승우 ( Han¸ Seungwoo ) 한국건축시공학회 2021 한국건축시공학회 학술발표대회 논문집 Vol.21 No.2
As non-road mobile pollutants such as construction equipment are emerging as the main cause of air pollutants emission, construction equipment regulations are gradually strengthening. Research was conducted by correcting the emission coefficient to calculate and predict air pollutant emissions of construction equipment, but it did not reflect site variables such as field and equipment conditions that affect actual emissions. This study derived an Artificial Neural Network emission prediction model based on the actual emission data of excavators and trucks measured at the site and proposed a platform to predict the emission of air pollutants at the site according to the working size and conditions. Through this, it is possible to establish an eco-friendly process plan using a model from the construction plan.
Effective Approaches to Preventing Dendrite Growth in Lithium Metal Anodes: A Review
( Jaeyun Ha ),( Jinhee Lee ),( Yong-tae Kim ),( Jinsub Choi ) 한국공업화학회 2023 공업화학 Vol.34 No.4
A lithium metal anode with high energy density has the potential to revolutionize the field of energy storage systems (ESS) and electric vehicles (EVs) that utilize rechargeable lithium-based batteries. However, the formation of lithium dendrites during cycling reduces the performance of the battery while posing a significant safety risk. In this review, we discuss various strategies for achieving dendrite-free lithium metal anodes, including electrode surface modification, the use of electrolyte additives, and the implementation of protective layers. We analyze the advantages and limitations of each strategy, and provide a critical evaluation of the current state of the art. We also highlight the challenges and opportunities for further research and development in this field. This review aims to provide a comprehensive overview of the different approaches to achieving dendrite-free lithium metal anodes, and to guide future research toward the development of safer and more efficient lithium metal anodes.
Therapeutic Vaccine Based on Mesoporous Silica Particles
Jaeyun Kim(김재윤) 한국고분자학회 2021 한국고분자학회 학술대회 연구논문 초록집 Vol.46 No.1
In the recent decades, immunotherapy has been recognized as a promising therapeutic method for cancer treatment. To enhance host immune responses against cancer, antigen presenting cells such as dendritic cells (DCs) need to be activated using tumor-associated antigens and adjuvants, which induces a cascading adaptive immune response targeting tumor cells. Recently we found that injectable mesoporous silica particles could be spontaneously stacked in the subcutaneous space after injection and generate interarticular pores that could be served as cellular microenvironments to recruit and manipulate DCs. The subsequent direct delivery of nano-vaccines carrying protein antigen or antigen-coding DNAs to the recruited DCs significantly enhance antigen-specific T cell responses. These findings suggest that mesoporous silica could be used as an efficient delivery vehicle as well as cell-recruiting scaffold to induce enhanced cancer immunotherapy.
Jaeyun Han,Tae Seob Shin 서울대학교 교육종합연구원 2019 The SNU Journal of Education Research Vol.28 No.4
The purpose of this study was to investigate the relationships among mindsets towards self and others (i.e., classmates), social comparison motive, and mathematics self-efficacy. Study 1 demonstrated that when sources of self-efficacy were controlled, growth mindset towards others facilitated students’ mathematics self-efficacy, indicating that positively appreciating others’ mathematics ability as malleable could be motivationally adaptive. Furthermore, when sources of self-efficacy were controlled, Study 2 revealed that this facilitation effect was only found among those students who had low self-enhancement motive. Having low self-enhancement motive means that students are less likely to compare themselves with others who have lower achievements. However, when students had high self-enhancement motive, the growth mindset toward others undermined mathematics self-efficacy.