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2 results on '"Yun Sung Kim"'

1. Clinical Significance of the Oxidized Low Density Lipoprotein in Gout Inflammation.

Author

Joa Kim, Yun Sung Kim, Suyeon Park, Bo Young Kim, Jung Ran Choi, and Hyun-Sook Kim

Abstract

Objective: Gout is a chronic inflammatory disease that is associated with a high prevalence of atherosclerotic cardiovascular mortality. Oxidized low-density lipoprotein (ox-LDL) is considered to play a critical role in the progression of atherosclerosis. Design: Gout patients were divided into five clinical subsets and ox-LDL were checked. Materials and Methods: They were divided into five clinical subsets. We compared clinical and laboratory parameters among the inflammatory status groups. Results: In a comparison of the four inflammatory status groups, with the exception of one asymptomatic hyperuricemia patient, ox-LDL was significantly higher in acute arthritis, and it was lowest in the well-controlled group. In post hoc analysis, ox-LDL was significantly different between acute arthritis and well-controlled status, between subacute arthritis and well-controlled status, and between chronic tophaceous gout and well-controlled status. Discussions: Ox-LDL is considered to be a key factor in the pathogenesis of atherosclerotic disease. Its levels were significantly different among the four inflammatory status groups; it was highest in acute arthritis, where the most active inflammation seems to occur, and lowest in the well-controlled status group. Conclusion: The present study emphasized that ox-LDL is associated with gout inflammatory status and may be a useful biomarker indicating a correlation of inflammation with atherosclerosis progression in gout patients. [ABSTRACT FROM AUTHOR]

Published
2021

2. Efficient Uplink Scheduler Architecture of Subscriber Station in IEEE 802.16 System.

Author

Enokido, Tomoya, Lu Yan, Bin Xiao, Daeyoung Kim, Yuanshun Dai, Yang, Laurence T., Woo-Jae Kim, Joo-Young Baek, Sun-Don Lee, Young-Joo Suh, Yun-Sung Kim, and Jin-A Kim

Abstract

The IEEE 802.16, broadband fixed wireless access standard, defines four service classes, USG, rtPS, nrtPS and BE on high speed wireless networks. To guarantee the QoS requirement of these classes, the subscriber station and base station require scheduling architecture and algorithm. However, the IEEE 802.16 does not define any scheduling architecture or algorithm, and the most existing scheduling mechanisms only focus on working at the BS. In this paper, we propose two types of scheduling architecture working at the SS. In the one-level scheduler, we use a flow queue and class queue by differentiating flows with their class priority. The two-level scheduler can provide more organized QoS service with complementing the one-level scheduler. Adapting these architectures makes scheduler efficiently control all types of traffic defined in the IEEE 802.16. In the proposed architecture, any scheduling algorithms such as SCFQ and EDF can be applied. We evaluate the proposed scheduling architecture by simulation. The results of the simulation show that our proposed architecture can use the bandwidth efficiently. [ABSTRACT FROM AUTHOR]

Published
2005
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