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Your search keyword '"Lee, J. G."' showing total 721 results
Start Over Author "Lee, J. G." Publication Type Academic Journals
721 results on '"Lee, J. G."'

5. Immunity Characterization of FPGA I/Os for Fault-Tolerant Circuit Designs against EMI

Author

NGUYEN, V. T., DAM, M. T., SO, J., and LEE, J.-G.

Subjects
immunity, susceptibility, integrated circuit, electromagnetic compatibility, electromagnetic interference, Electrical engineering. Electronics. Nuclear engineering, TK1-9971, Computer engineering. Computer hardware, TK7885-7895
Abstract

This paper characterizes the immunity of I/Os under different supply voltages for fault-tolerant circuit designs against electromagnetic interference. The direct power injection approach is used as a means to characterize the immunity of circuits. In this work, the immunity characterization has been performed under two scenarios: (1) an input buffer of a Field Programmable Gate Array (FPGA) followed by a single flip-flop, and (2) the FPGA input buffer followed by a redundancy-based fault-tolerant circuit. The experimental results show that when downscaling the supply voltage through a set of nominal values (i.e., 3.3, 2.5, 1.8, 1.5, 1.2 V), the immunity of I/Os is decreased from the highest level at 3.3 V to the lowest at 1.2 V. Particularly, the maximum difference in the immunity is about 16.8 dB at the frequency of 600 MHz. Moreover, experiments demonstrate that I/O buffers followed by the redundancy-based fault-tolerant circuit can improve the immunity of the circuit up to 4 dB below the frequency band of 400 MHz. Thus, the redundancy-based fault-tolerant circuit can support I/Os to operate reliably in the harsh environment.

Published
2019
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13. Effect Of The Desorption-Recombination Temperature On The Microstructure And Magnetic Properties Of HDDR Processed Nd-Fe-B Powders

Author

Lee J.-G., Cha H.-R., Liu S., Yu J.-H., Baek Y.-K., and Kwon H.-W.

Subjects
Nd-Fe-B, HDDR, permanent magnet, grain boundary, Mining engineering. Metallurgy, TN1-997, Materials of engineering and construction. Mechanics of materials, TA401-492
Abstract

The effect of the desorption-recombination temperature on the microstructure and magnetic properties of hydrogenation-disproportionation-desorption-recombination (HDDR) processed Nd-Fe-B powders was studied. The NdxB6.4Ga0.3Nb0.2Febal (x=12.5-13.5, at.%) casting alloys were pulverized after homogenizing annealing, and then subjected to HDDR treatment. During the HDDR process, desorption-recombination (DR) reaction was induced at two different temperature, 810°C and 820°C. The higher Nd content resulted in enhanced coercivity of the HDDR powder, and which was attributed to the thicker and more uniform Nd-rich phase along grain boundaries. But this uniform Nd-rich phase induced faster grain growth. The remanence of the powder DR-treated at 820°C is higher than that DR-treated at 810°C. In addition, it was also confirmed that higher DR temperature is much more effective to improve squareness.

Published
2015
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18. Persistence of solifenacin therapy in patients with overactive bladder in the clinical setting: a prospective, multicenter, observational study

Author

Kim, T. H., You, H. W., Park, J. H., Lee, J. G., Choo, M.-S., Park, W. H., Lee, J. Z., Park, C. H., Na, Y. G., Kwon, D. D., Lee, K.-S., Kim, Hawn, Park, Chang Myon, Kim, Hyeong Gon, Yoo, Eun Sang, Seo, Young Jin, Lee, Sun-Ju, Choi, Seong, Noh, Joon Hwa, Kim, Duk Yoon, Kim, Dae Kyung, Oh, Tae-Hee, Kim, Joon Chul, Kim, Young Ho, Jeong, Seong Jin, Oh, Seung-June, Choi, Jong Bo, Jung, Hee-Chang, Moon, Kyung-Hyun, Jung, Hee Jong, Yoo, Tag Keun, Yoon, Hana, Min, Kwon Sik, Kim, Sun-Ouck, Kim, Myung Ki, Seo, Ju Tae, Rho, Joon, Lee, Seong-Ho, Yoon, Seok Jung, Yang, Sang-Kuk, and Kim, Yong Tae

Published
2016
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38. Korean Medication Algorithm for Bipolar Disorder: changes in preferred medications for mania over 20 years.

Author

Jon, D.-I., Woo, Y. S., Jeong, J.-H., Seo, J.-S., Lee, J. G., Yoon, B.-H., Sohn, I., and Bahk, W.-M.

Subjects
TREATMENT effectiveness, MANIA, BIPOLAR disorder, MOOD stabilizers, MEDICAL personnel
Abstract

Introduction: Majority of international guidelines for bipolar disorders are based on evidences from clinical trials. In contrast, the Korean Medication Algorithm Project for Bipolar Disorder (KMAP-BP) was developed to adopt an expert-consensus paradigm which was more practical and specific to the atmosphere in Korea. Objectives: In this study, preferred medication strategies for acute mania over six consecutively published KMAP-BP (2002, 2006, 2010, 2014, 2018, and 2022) were investigated. Methods: A written survey using a nine-point scale was asked to Korean experts about the appropriateness of various treatment strategies and treatment agents. A written survey asked about the appropriateness of various treatment strategies and treatment agents commonly used by clinicians as the first-line. Results: The most preferred option for the initial treatment of mania was a combination of a mood stabilizer (MS) and an atypical antipsychotic (AAP) in every edition. Preference for combined treatment for euphoric mania increased, peaked in KMAP-BP 2010, and declined slightly. Either MS or AAP monotherapy was also considered a first-line strategy for mania, but not for all types of episodes, including mixed/psychotic mania. Among MSs, lithium and valproate are almost equally preferred except in the mixed subtype where valproate is the most recommended MS. The preference of valproate showed reverse U-shaped curve. This preference change of valproate may indicate the concern about teratotoxicity in women. Quetiapine, aripiprazole, and olanzapine were the preferred AAP for acute mania since 2014. This change might depend on the recent evidences and safety profile. In cases of unsatisfactory response to initial medications, switching or adding another first-line agent was recommended. The most notable changes over time included the increasing preference for AAPs. Conclusions: The Korean experts have been increasingly convinced of the effectiveness of a combination therapy for acute mania. There have been evident preference changes: increased for AAP and decreased for carbamazepine. Disclosure of Interest: None Declared [ABSTRACT FROM AUTHOR]

Published
2024
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