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A Case of Hypocalcemia-Induced Dilated Cardiomyopathy
성중경,김장영,류동욱,이준원,윤영진,유병수,최경훈 한국심초음파학회 2010 Journal of Cardiovascular Imaging (J Cardiovasc Im Vol.18 No.1
Hypocalcemia is a rare cause of dilated cardiomyopathy. Hypocalcemia induced cardiomyopathy is usually reversible when calcium level returns to normal range. We experienced a case of 57-year-old woman who had suffered from hypocalcemia after total thyroidectomy and its consequence of dilated cardiomyopathy. After supplementation of calcium and vitamin D,symptoms of heart failure and LV function were recovered.
AIOPro: 안드로이드 스마트폰을 위한 통합된 스토리지 I/O 분석도구
한상욱(Sangwook Shane Hahn),이인혁(Inhyuk Yee),류동욱(Donguk Ryu),김지홍(Jihong Kim) Korean Institute of Information Scientists and Eng 2017 정보과학회논문지 Vol.44 No.3
Application response time is critical to end-user response time in Android smartphones. Due to the plentiful resources of recent smartphones, storage I/O response time becomes a major key factor in application response time. However, existing storage I/O trace tools for Android and Linux give limited information only for a specific I/O layer which makes it difficult to combine I/O information from different I/O layers, because not helpful for application developer and researchers. In this paper, we propose a novel storage I/O trace tool for Android, called AIOPro (Android I/O profiler). It traces storage I/O from application - Android platform - system call - virtual file system - native file system - page cache - block layer - SCSI layer and device driver. It then combines the storage I/O information from I/O layers by linking them with file information and physical address. Our evaluations of real smartphone usage scenarios and benchmarks show that AIOPro can track storage I/O information from all I/O layers without any data loss under 0.1% system overheads.