Zobrazeno 1 - 10 of 12 pro vyhledávání: '"Kijung Jung"'
1
Akademický článek
QHB+: Accelerated Configuration Optimization for Automated Performance Tuning of Spark SQL Applications
Autor: Deokyeon Jang, Hyunsik Yoon, Kijung Jung, Yon Dohn Chung
Publikováno v: IEEE Access, Vol 12, Pp 60138-60148 (2024)
Apache Spark stands out as a well-known solution for big data processing because of its efficiency and rapid processing capabilities. One of its modules, Spark SQL, serves as a prominent big data query engine. However, executing Spark SQL application
Externí odkaz: https://doaj.org/article/df34c96fa2694443a87acc87a10c3b42
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2
Akademický článek
LAFD: Local-Differentially Private and Asynchronous Federated Learning With Direct Feedback Alignment
Autor: Kijung Jung, Incheol Baek, Soohyung Kim, Yon Dohn Chung
Publikováno v: IEEE Access, Vol 11, Pp 86754-86769 (2023)
Federated learning is a promising approach for training machine learning models using distributed data from multiple mobile devices. However, privacy concerns arise when sensitive data are used for training. In this paper, we discuss the challenges o
Externí odkaz: https://doaj.org/article/ea49f310cfa94e868bf3ba0f1f74ca1c
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5
Controlled Cyclopolymerization of 1,5-Hexadiynes to Give Narrow Band Gap Conjugated Polyacetylenes Containing Highly Strained Cyclobutenes
Autor: Kijung Jung, Tae-Lim Choi, Sojeong Ahn, Cheol Kang
Publikováno v: Journal of the American Chemical Society. 142:17140-17146
For decades, cyclopolymerization of α,ω-diyne derivatives has been an effective method to synthesize various soluble polyacetylenes containing five- to seven-membered rings in the backbone. However...
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ada37801f8ec06eca577385cc9c1c0da
https://doi.org/10.1021/jacs.0c07666
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6
Toward Perfect Regiocontrol for β-Selective Cyclopolymerization Using a Ru-Based Olefin Metathesis Catalyst
Autor: Tonia S. Ahmed, Kijung Jung, Kunsoon Kim, Jong-Chan Sung, Soon Hyeok Hong, Robert H. Grubbs, Tae-Lim Choi
Publikováno v: Macromolecules. 51:4564-4571
Ru-based metathesis catalysts employed in cyclopolymerization (CP) of 1,6-heptadiyne derivatives have promoted regioselective α-addition to alkynes, forming various conjugated polyenes containing exclusively five-membered repeat units. Recently, we
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21773ce763f7510b6aebaeee43c09560
https://doi.org/10.1021/acs.macromol.8b00969
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8
Living β-selective cyclopolymerization using Ru dithiolate catalysts
Autor: Kijung Jung, Hyeyun Keum, Tonia S. Ahmed, Robert H. Grubbs, Tae-Lim Choi, Jaeho Lee, Jong-Chan Sung
Publikováno v: Chemical Science
Chemical Science, 10 (39)
Cyclopolymerization (CP) of 1,6-heptadiyne derivatives is a powerful method for synthesizing conjugated polyenes containing five- or six-membered rings via α- or β-addition, respectively. Fifteen years of studies on CP have revealed that user-frien
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f72cedadebd1f4543b7f3b697bdc1a3
https://pubmed.ncbi.nlm.nih.gov/31762976
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9
Highly β-Selective Cyclopolymerization of 1,6-Heptadiynes and Ring-Closing Enyne Metathesis Reaction Using Grubbs Z-Selective Catalyst: Unprecedented Regioselectivity for Ru-Based Catalysts
Autor: Jeong-Hun Sohn, Eun-Hye Kang, Kijung Jung, Tae-Lim Choi
Publikováno v: Journal of the American Chemical Society. 138:11227-11233
It is well-known that Ru-based Grubbs catalysts undergo a highly selective α-addition to alkynes to promote exo-cyclization during ring-closing enyne metathesis (RCEYM) or to produce conjugated polyenes containing five-membered rings during the cycl
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b333c8eab559d0fd430df1e60a529a9c
https://doi.org/10.1021/jacs.6b05572
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10
Understanding the Origin of the Regioselectivity in Cyclopolymerizations of Diynes and How to Completely Switch It
Autor: Mannkyu Hong, Seongyeon Kwon, Mu-Hyun Baik, Hoimin Jung, Kijung Jung, Kunsoon Kim, Soon Hyeok Hong, Tae-Lim Choi
Publikováno v: Journal of the American Chemical Society. 140(2)
Grubbs-type olefin metathesis catalysts are known to cyclopolymerize 1,6-heptadiynes to afford conjugated polyenes containing five- or six-membered carbocycles. Although high levels of regioselectivity up to99:1 were observed previously for the forma
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e2046fe55c70f7c7215792c99696ecd1
https://pubmed.ncbi.nlm.nih.gov/29277991
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