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ATM망에서 Fair Queueing 알고리즘에 관한 연구
문규춘,김훈,한상엽,박광채 조선대학교 에너지.자원신기술연구소 1999 에너지·자원신기술연구소 논문지 Vol.21 No.2
B-ISDN using ATM should provide QoS of various service and also fair control for each source. In this paper, we suggested the Virtual-Time-based Round Robin(VTRR), fair scheduling algorithm guaranteeing demanded QoS. We searched the characteristic and required points possessing proper fair scheduling algorithm in high speed network. And we analyzed the performance character and simulation. The result is that VTRR is much simpler in algorithm and is better than WFQ or GPS in performance.
최한규,이문희,백효선 강원대학교 산업기술연구소 2006 産業技術硏究 Vol.26 No.A
In this research, we made a one and two-dimensional analysis of numerical data collected from the bend curvature of a bended river section. According to the result from the numerical analysis, the inflow & output angle caused a water level deviation which increased with an increase of the flood discharge. From the water level deviation of our two- dimensional numerical model, we obtained the maximum slope of 6,67% when the inflow and output angle was 105 degrees and the flood discharge was 500 CMS. As for the right side, the differences with the one-dimensional numerical model were reduced when the angle was more than 90˚. As for the left side the differences were reduced when the angle was more than 105˚. For a river with more than 90 degrees bend curvature, a hydraulic experiment would be more appropriate than a numerical analysis.
全文球,金圭漢,徐丙權 관동대학교 2000 關大論文集 Vol.28 No.2
It is very important item the prediction of wave height distribution in harbor before the construction. If the harbor calmness is not good after the construction. it will be considered again. A numerical model based on the mild slope equation is occasionally used to calculate the wave height distribution in the harbor. But this model is usually described for regular waves. We attempted the prediction method an irregular wave field by energy superposition for regular waves with different wave direction and frequencies. Also. this applicability study was investigated on the onsan harbor
박시준,김호민,한규수,성금수,신미란,문연자,우원홍 한국전통의학연구소 2006 한국전통의학지 Vol.15 No.1
Lavandula vera is indispensable member of the herb family, used for perfumes and potpourri. Androgens have profound effects on the physiology of the sebaceous gland. Sebum is secreted due to the effect of androgen, which starts to be secreted at puberty. Using the human sebocyte cell line SZ95, the author investigated the inhibitory effect of Lavandula vera on the lipid production. Light microscopic finding were examined numerous cytoplasmic lipid droplets SZ95 cells by Oil red staining and lipid droplets were increased markedly by testosterone. On the other hand, combined treatment with Lavandula vera and testosterone resulted in a lower lipid droplets than with testosterone alone in a dose-dependent manner. These findings indicate that Lavandula vera acts antagonistically to testosterone and inhibits the lipid synthesis of SZ95 cells at the cellular level.
Air-ring microstructure arrays for enhanced light extraction from a face-up light-emitting diode.
Kim, Hyun Kyu,Park, Young Jae,Kang, Ji Hye,Han, Nam,Han, Min,Ryu, Beo Deul,Ko, Kang Bok,Yang, Jong Han,Kim, Young Taek,Chandramohan, S,Jeong, Hyun,Jeong, Mun Seok,Hong, Chang-Hee Optical Society of America 2013 Optics letters Vol.38 No.9
<P>In this Letter, a light-emitting diode (LED) with prism-shaped-air-ring microstructures (PSAMs) formed on flat sapphire substrate is demonstrated as an alternative design to face-up LEDs on patterned sapphire substrate (PSS) for enhanced light extraction efficiency. In this LED design, the emitted photons can be deflected to the top of the chip for its effective extraction, contrary to the PSS-LED wherein photons are guided to sapphire and get absorbed by packaging materials. The PSAM-LED showed an enhancement in the radiometric power as high as 10% with a low far-field angle of 129 over that of a PSS-LED under an injection current of 20 mA.</P>
剔出 白鼠 心臟에서 Norepinephrine效果에 미치는 Diphenhydramine의 影響
문보영,한규송,곽용근,조규박 의과학연구소 1988 全北醫大論文集 Vol.12 No.4
Influences of diphenhydramine on the contractile response of isolated rat auricle to norepinephrine were studied in order to clarify the mechanisms of depressant and stimulant actions of diphenhydramine. 1. Large dose of diphenhydramine(10μM) potentiated the contractile action of norepinephrine but small dose of diphenhydramine suppressed the contractile action of norepinephrine. 2. Cocaine did not affect, the stimulant action of diphenhydramine, but reversed the depressant action of this drug. 3. Ouabain did not affect the excitory and inhibitory action of diphenhydramine. 4. Verapamil did not change the excitory and inhibitory action of diphenhydramine. From the above results, it has appeared that diphenhydramine has stimulant ant depressant action on the contractile action of norepinephrine, and it is suggested that the potentiation of norepinephrine action by diphenhydramine is due to inhibition of amine pump, but the inhibition of norepinephrine action by diphenhydramine is not related to modification of amine pump or Ca flux.