• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2018.06a
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• pp.116-119
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• 2018

In this paper, we propose a new single-image dehazing method. The proposed method constructs color ellipsoids that are statistically fitted to haze pixel clusters in RGB space and then calculates the transmission values through color ellipsoid geometry. The transmission values generated by the proposed method maximize the contrast of dehazed pixels, while preventing over-saturated pixels. The values are also statistically robust because they are calculated from the averages of the haze pixel values. Furthermore, rather than apply a highly complex refinement process to reduce halo or unnatural artifacts, we embed a fuzzy segmentation process into the construction of the color ellipsoid so that the proposed method simultaneously executes the transmission calculation and the refinement process. The results of an experimental performance evaluation verify that compared to prevailing dehazing methods the proposed method performs effectively across a wide range of haze and noise levels without causing any visible artifacts. Moreover, the relatively low complexity of the proposed method will facilitate its real-time applications.

• Proceedings of the PSK Conference
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• 2002.10a
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• pp.264.1-264.1
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• 2002

We studied to compare hypoglycemic effect of GRA and MF in multiple low dose streptozotocin(STZ)-induced diabetic rats. 25 mg/kg of STZ in 100 mM citrate buffer(pH 4.5) was injected intraperitoneally for 5 consecutive days. SD rats were randomly divided into diabetic control and treatment groups. Treatment groups were administered with either 500mg/kg of GRA. 500mg/kg of MF. 250mg/kg of GRA＋250mg/kg of MF(GM 250)or 500mg/kg of GRA＋500mg/kg of MF(GM 500) for 3 weeks. (omitted)

• Journal of East-West Nursing Research
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• v.16 no.2
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• pp.85-95
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• 2010

Purpose: This study aimed to identify major trends and characteristics of studies on aromatherapy in Korea. Methods: Literature on the studies of aromatherapy in Korea was retrieved using RISS, KISS, DBpia, and Pubmed. The studies were analyzed based on publication year, study design, intervention method, and measuring variables. The level of applied intervention was assessed by target group, the types of aroma, and their effects. Results: A total of 111 studies was included in this study. Most of studies on aromatherapy were conducted using a experimental design to test the effects of aromatherapy as a nursing interventions. Conclusion: This study showed that methods of mixing oils, sites of massage, and target groups vary among studies on aromatherapy in Korea. It is suggestive that standardized methods to mix oils and to apply aroma is in need.

• Journal of KIISE:Computer Systems and Theory
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• v.34 no.2
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• pp.84-92
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• 2007

This paper proposes an interconnect delay fault test (IDFT) solution on boards and SoCs based on IEEE 1149.1 and IEEE P1500. A new IDFT system clock rising edge generator which forces output boundary scan cells to update test data at the rising edge of system clock and input boundary scan cells to capture the test data at the next rising edge of the system clock is introduced. Using this proposed circuit, IDFT for interconnects synchronized to different system clocks in frequency can be achieved efficiently. Moreover, the proposed IDFT technique does not require any modification of the boundary scan cells or the standard TAP controller and simplifies the test procedure and reduces the area overhead.

• Journal of Broadcast Engineering
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• v.21 no.5
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• pp.792-802
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• 2016

Real time verification is necessary, since there are several features that cannot be verified through design simulation in the design of multiband soundbar system. And then this paper describes an implementation of an FPGA-based real-time verification system for a soundbar SoC with an embedded processor. It is verified a real-time performance test and a listening test which are several features in the design stage that cannot be verified through a design simulation. The measurement of quantitative specifications such as SNR, THD+N, frequency response, etc. as well as the listening test were performed through the implemented FPGA system, and it was verified that test results satisfied the target specifications.

• Bulletin of the Korean Chemical Society
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• v.26 no.5
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• pp.849-851
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• 2005

• 한국생물공학회:학술대회논문집
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• 2003.10a
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• pp.159-159
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• 2003

• The Plant Pathology Journal
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• v.17 no.6
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• pp.390.4-391
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• 2001

• Applied Biological Chemistry
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• v.51 no.3
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• pp.247-249
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• 2008

• Proceedings of the Korea Society of Design Studies Conference
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• 2004.05a
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• pp.94-95
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• 2004