Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Ho-Hyeong Lee"'
Autor:
Ho-Hyeong Lee, Jong-Do Park
Publikováno v:
AIMS Mathematics, Vol 6, Iss 11, Pp 12379-12394 (2021)
This paper deals with the sum of reciprocal Fibonacci numbers. Let $ f_0 = 0 $, $ f_1 = 1 $ and $ f_{n+1} = f_n+f_{n-1} $ for any $ n\in\mathbb{N} $. In this paper, we prove new estimates on $ \sum\limits^\infty_{k = n}\frac{1}{f_{mk-\ell}} $, where
Externí odkaz:
https://doaj.org/article/55e0125f87eb405bbdc2edd0f283403e
Autor:
Ho-Hyeong Lee, Jong-Do Park
Publikováno v:
Journal of Inequalities and Applications, Vol 2020, Iss 1, Pp 1-17 (2020)
Abstract Let { f k } k = 1 ∞ $\{f_{k} \} _{k=1}^{\infty}$ be a Fibonacci sequence with f 1 = f 2 = 1 $f_{1}=f_{2}=1$ . In this paper, we find a simple form g n $g_{n}$ such that lim n → ∞ { ( ∑ k = n ∞ a k ) − 1 − g n } = 0 , $$\lim_{n\
Externí odkaz:
https://doaj.org/article/1ef1046a40be4b5387cc66006d30bf3c
Autor:
Renhao Wu, Soung Yeoul Ahn, Yeon Taek Choi, Hyojin Park, Man Jae SaGong, Ganesh Sattineni, Hyeonseok Kwon, Sang Guk Jeong, Gitaek Lee, Ho Hyeong Lee, Haiming Zhang, Hyoung Seop Kim
Publikováno v:
Materials Research Letters, Vol 12, Iss 10, Pp 689-699 (2024)
This study delves into effects of deep cryogenic treatment (DCT) on enhancing the hydrogen embrittlement resistance of CoCrFeMnNi high-entropy alloy fabricated via laser powder-bed-fusion (L-PBF). Comparatively assessing as-print, conventional heat t
Externí odkaz:
https://doaj.org/article/027069ea757a415fa9adb6a14b799acf
Publikováno v:
2022 IEEE 61st Conference on Decision and Control (CDC).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7da9ef935657ac569fb94a8f0bd9682
https://doi.org/10.1109/cdc51059.2022.9992977
https://doi.org/10.1109/cdc51059.2022.9992977
Autor:
Jong Do Park, Ho Hyeong Lee
Publikováno v:
AIMS Mathematics, Vol 6, Iss 11, Pp 12379-12394 (2021)
This paper deals with the sum of reciprocal Fibonacci numbers. Let $ f_0 = 0 $, $ f_1 = 1 $ and $ f_{n+1} = f_n+f_{n-1} $ for any $ n\in\mathbb{N} $. In this paper, we prove new estimates on $ \sum\limits^\infty_{k = n}\frac{1}{f_{mk-\ell}} $, where
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c03a2e19582a2dc798c7ee751971058f
https://doi.org/10.3934/math.2021716
https://doi.org/10.3934/math.2021716
Autor:
Guiyoung Gu, Ji Hoon Kim, Ho Hyeong Lee, Alireza Zargaran, Minseo Koo, Seong Hoon Kim, Jae Sang Lee, Dong-Woo Suh
Publikováno v:
Materials Science and Engineering: A. 851:143651
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e62475ae01ff2548f9682b55c3e273d
https://doi.org/10.1016/j.msea.2022.143651
https://doi.org/10.1016/j.msea.2022.143651
Publikováno v:
steel research international. 94:2200228
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7cd042e350831836adf9095d4b14b784
https://doi.org/10.1002/srin.202200228
https://doi.org/10.1002/srin.202200228
Autor:
Ho Hyeong Lee, Yong Jin Kim, Dong-Woo Suh, Young-Beum Song, Hong-Bum Lee, Hong-Kyu Kim, Jinhee Ham
Publikováno v:
Scripta Materialia. 200:113892
We examine the effect of transformation sequence on the microstructure evolution and mechanical properties of complex phase steel consisting of bainite and martensite. Formation of martensite prior to bainite transformation provides uniform lath-type
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3ecd72e80f6f932401edc629d0fc23a
https://doi.org/10.1016/j.scriptamat.2021.113892
https://doi.org/10.1016/j.scriptamat.2021.113892
Autor:
Jae Kyoung Cho, Hong Jong Lee, Youn Suk Oh, Seong Jae Doh, Moon Sun Do, Yongjae Yu, Dong Sung Lee, Ho Hyeong Lee, Youngjin Yim, Dae Hwan Hyun, Min Gyu Gong, Yong-Hee Park, Sang Gi Cho, Yeun Sik Sin, Wonnyon Kim
Publikováno v:
Earth and Planetary Science Letters. 294:173-181
An archeomagnetic paleosecular variation (PSV) was first defined in Korea using baked materials collected from 26 kilns or hearths with ages ranging from ∼ 1100 BC to AD 1790. Variations of geomagnetic declination and inclination from the Korean pe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ad1cffd54d686d014580d8ce6eb8214
https://doi.org/10.1016/j.epsl.2010.03.024
https://doi.org/10.1016/j.epsl.2010.03.024