• Title/Summary/Keyword: Sa

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The performance Evaluation of SA filters for images corrupted by mixed noise (혼합 잡음 영상에서 SA 필터의 성능 분석)

  • Song, Jong-Kwan
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.11 no.3
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    • pp.471-478
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    • 2007
  • The SA fillers encompass a large class of filters based on order statistics as veil as linear FIR filters. Using SA later structure, it is possible to design linear and non-linear filters under a unified framework. In this paper SA filters are applied to an image smoothing problem for mixed noise. Original image is contaminated by Gaussian and impulsive noise. Optimal SA filters are designed and applied to contaminated image. The experimental result shows that SA filters outperform linear FIR and ordering-based nonlinear filters.

A Study on the engraving place of wood printing plates in the Haeinse (해인사 소장책판의 판각처에 관한 연구)

  • ;Kim, Young-Son
    • Journal of Korean Library and Information Science Society
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    • v.28
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    • pp.415-445
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    • 1998
  • This study attempts at the engraving place of wood-printing plates held in the Haein Temple(해인사), which were famous for playing the significant role in the understanding of publishing activities of both the Koryo and Choson Dynasty. Following the common way the bibliographic elements of the books were analyzed namely according to the publication place and the publisher. The findings derived from the analysis are summarized as follows; In the Haeinsa the wood-printing plates books are preserved moved from 17 temples such as Bongso-Sa(봉서사), Hago-Sa(하고사), Soksuam(석수암), Inhung-Sa(인흥사), Wonkwang-Sa(월광사), Sinha-Sa(신하사), Gunsyaeng-Sa(군생사), Jangsu-Sa(장수사), Yongtong-Sa(영통사), Wonjok-Sa(원적사), Unjin(은진) SSanggye-Sa(쌍계사), Songsan(성산) SSanggye-Sa(쌍계사), Hungyul-Sa(흥률사), Jongwon-Sa(정원사), Yon-Sa(연사), Gamro-Sa(감로사), Yongguam(영귀암) besides the publications of temples, there are publications of local branches of gangyengdogam(간경도감) such as Jinju(진주), Sangju(진주), Sangju(상주), Andong(안동), of local public agencies such as Gaelimbu(계림부), Dalsunggwan(달성관), and of private families of which 8 titles in the Koryo Dynasty and 13 titles of the Choson Dynasty. Among the "SSanggyae-Sa(쌍계사) publication" held in the Haeinsa, 9 titles including Chimungyonghun(치문경훈) are recklesaly preserved with dividing both in Gap temple(갑사) and in Haeinsa as the same publication. It is possible that other scattered present publications or remaining publications might have been remaining publication from those partly burnt ones of the complete publications. By means of the investigation on the catalogs of publications, 5 titles such as <> <> <> <> <> which are now kept in the Haeinsa moved from the Taegubu(대구부) or Yongyon-Sa(용연사) were newly identified.

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An exprimental Study of the Effects of Yukmijiwhangtanggamibang on Growth, Learning and Memory of Rats (육미지황탕가미방(六味地黃湯加味方)이 흰쥐의 성장(成長)과 학습(學習) 및 기억(記憶)에 미치는 영향(影響))

  • Koo, Jin-Suk;Kim, Jang-Hyun
    • The Journal of Pediatrics of Korean Medicine
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    • v.19 no.1
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    • pp.67-82
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    • 2005
  • Objectives : This study was conducted to find out the effect of Yukmijiwhangtanggamibang (YM) on growth, learning and memory of rats. Methods : It was divided SD rats into Sham group, 192 Saporin injection(SA+Saline) group and Injection of 192 Saporin with YM(SA+YM) group. Growth measure length of bone and tail. Memory performance was used aquisition test and learning retention of morris water maze. It was detected acetylcholinesterase(AChE), cholineacetyltransferase(ChAT) at medial septum and hippocampus by immunohistochemistry Results : Body Weight of the SA+YM Group increased effectively, as compared with SA Saline group. Growth of bone in the SA+YM Group increased effectively, as compared with SA+Saline group. Growth of Tail in the SA+YM Group increased effectively, as compared with SA_Saline group. The SA+YM Group in Aquisition Test improved effectively, as compared with SA+Saline group. The SA+YM Group in Learning Test improved effectively, as compared with SA+Saline group. The numbers of ChAT cells in Medial septum increased effectively, as compared with SA+Saline group. The numbers of ChAT cells in CA1 of Hippocampus increased, but was not effective. Conclusion : These results suggest that YM has an improving effect on the impaired learning through the effects on memory registration and retrieval.

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Inhibitory Effects of Soamsan1 on Lung Metastasis of B16 Melanoma Cells (B16 흑색종 세포의 폐전이에 대한 소암산1의 억제효과)

  • Jeon Byung Hun;Kim Won Sin
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.16 no.6
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    • pp.1122-1126
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    • 2002
  • We have examined whether Soamsan 1 (SA 1) augment the inhibitory effect of oral administration of Soamsan (SA) on lung metastasis of mouse 816 melanoma cells. The inhibitory effect was slightly enhanced by increase in administration dosage of SA 1. SA 1 as well as SA inhibited effectively the lung metastasis regardless of the pretreatment with anti-mouseNK monoclonal antibody. However, in the case of 2-chloroadenosine-pretreated mice, the inhibitory effects of SA and SA 1 were decreased by 18 and 23%, respectively. In vitro stimulation of the mouse splenocytes with mitogens showed that SA or SA 1 significantly augmented the proliferation of mouse splenocytes. Especially, the activity was more prominent in the presence of a B cell mitogen. LPS than a T cell mitogen, Con A. These results suggest that oral administration of SA 1 or SA inhibited lung metastasis of B16 melanoma cells, possibly through a mechanism mediated by the activation of macrophages and B lymphocytes in the host immune system. However, SA 1 did not showed more significant augment of the activation of immune system than SA.

Inhibition of IκB Kinase β (IKKβ) and Anti-diabetic Effect of SA51

  • Bhattarai, Bharat Raj;Kafle, Bhooshan;Hwang, Ji-Sun;Han, Inn-Oc;Cho, Hyeongjin
    • Bulletin of the Korean Chemical Society
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    • v.34 no.8
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    • pp.2487-2490
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    • 2013
  • SA51, a medium potency inhibitor of protein tyrosine phosphatase 1B (PTP1B), was identified to be a potent inhibitor of $I{\kappa}B$ kinase ${\beta}$ ($IKK{\beta}$). Consistent with this, SA51 prevented lipopolysaccharide (LPS)-induced breakdown of $I{\kappa}B{\alpha}$ in macrophages. The effects of SA51 in mice were compared with those of structurally related compounds, SA18 and SA32, which were previously reported as inhibitors of both enzymes - less potent against $IKK{\beta}$ but more potent against PTP1B compared to SA51. SA51 improved glucose tolerance and lipid parameters in mice, consistent with the results reported for $IKK{\beta}^{+/-}$ mice. In contrast, SA18 and SA32 showed anti-obesity effects without anti-diabetic effects. Collectively, the effects of SA51 could be due largely to the inhibition of $IKK{\beta}$, whereas SA18 and SA32 may be more likely to inhibit PTP1B, consistent with their relative in vitro inhibitory effects.

A Study on Preventing SA Re-negotiation for Mobility Support in Mobile IP VPN Environment (모바일 IP VPN 환경에서의 이동성 지원에 따른 SA 재협상 방지에 관한 연구)

  • 차정석;김태윤;송주석
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.28 no.10B
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    • pp.891-898
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    • 2003
  • In the remote access VPN architecture which is based on IPsec, if the VPN client wants to be served the VPN service continuously during VPN client's handoff, It needs the techniques to merge VPN with Mobile IP. In this case, if the VPN client roams to new subnet, it acquires new CoA. As a result of changing IP address, existing SA becomes useless and new SA is required. The SA renegotiation process results from handoff of the VPN client and does not result from security aspect. Hence, In the environment which includes many handoffs, overhead by SA re-negotiation deteriorates performance. In this paper, we propose the technique provides that it doesn't need to renegotiate SA and be able to get the security service continuously even though MN's handoff occurs in Mobile IP VPN environment.

The Role of Phosphorus on Plant Succession of Grassland in Andosol Region II. Accumulation and decomposition of litter in natural grassland community (강산성 화산회토양에 있어서 초원의 천이에 미치는 인산의 역할 II. 야초군락에 있어서 Litter의 집적과 분해)

  • Chung, Chan;Sugawara, Kazuo
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.13 no.1
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    • pp.23-30
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    • 1993
  • This study was investigated about decomposition process of litter that is reduction pathway of phosphorus from plant body to soil That is, in each community of Miscanthus sinensis, SaSa palmalta. Artemisia princeps and Polygonum thunbergii, disappearing speed was calculated from total fallen leaves yield supplied as litter and litter existant yield. Besides, setting up litter bag that put litter in nylon mesh bag. calculated disappearing speed from decreasing speed of the weight of contents and then was compared and examined. The results obtained are summarized as follows : 1. Maximum litter yield was sequently Miscanthus sinensis>SaSa palmalta>Artemisia princeps>Polygonum thunbergii, but, supplied litter yield was sequently Artemisia princeps>Miscanthus sinenis>Polygonum thunbergii>SaSa palmalta. 2. Reduction speed of phosphorus from plant body to soil was Polygonum thunbergii>Artemisia princeps>Miscanthus sinensis>SaSa palmalta. 3. Caculated disappearing speed using litter bag method was shown latter tendency than that of natural condition. 4. It was significantly negative relationship between N contents of litter and disappearing speed of litter.

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Optimization for Lacticin SA72 Production by Lactococcus lactis SA72 Isolated from Jeot-gal. (젓갈에서 분리한 Lactococcus lactis SA72에 의한 Lacticin SA72의 생산 최적화)

  • 백현동;구경모;김진곤;이나경
    • Microbiology and Biotechnology Letters
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    • v.31 no.1
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    • pp.46-50
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    • 2003
  • Lactococcus lactis SA72 from Jeot-gal (Korean traditional fermented fish foods) produces lacticin SA72. The influence of several parameters on the fermentative production of lacticin SA72 by Lactococcus lactis SA72 was studied. MRS medium among several media was selected for enhanced bacteriocin production. The mean growth rate and bacteriocin productivity of L. lactis SA72 increased as the initial pH of the media increases. The highest lacticin SA72 activity was detected 3,200 AU/ml at pH 6.0, $32^{\circ}C$, and 1% (inoculum size, v/v) in the jar fermenter. Enhanced production of lacticin SA72 was investigated by a fed-batch cultivation with the intermittent feeding of the concentrated glucose solution. Under the optimized conditions, lacticin SA72 activity finally reached to 6,400 AU/ml.

Effect of salicylic acid and its analogues on stomatal closing in Commelina communis L. (닭의장풀의 기공닫힘에 미치는 살리실릭산과 그 유사물의 효과)

  • Joon-Sang Lee
    • Journal of Environmental Science International
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    • v.4 no.4
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    • pp.15-15
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    • 1995
  • ABA and SA showed different effect on stomatal closing on same condition. The addition of 1 M salicylic acid to fully opened stomata resulted in a significant reductionn of 22 % in stomatal aperture. However, 1 mM ABA reduced 73 % of stomatal aperture. The light absorption spectra of the salicylic acid solution showed that SA was degraded within 1 hour. Therefore, SA solution was resupplied % the detached epidermis every 30 min. during incubation and it was found that even at 10 $mu$M SA induced stomatal closing significantly. Its effect was also greatly pH dependent. The reduction of stomatal aperture caused by 1 mM SA was most effective at lower pH (pH 7.2, 5 %: pH 6.2, 40 %; pH 5.2, 78 %). Therefore, if SA was properly treated to the epidermal strips in the medium, the effects of SA on stomatal closing were similar with those of ABA.

Effect of salicylic acid and its analogues on stomatal closing in Commelina communis L. (닭의장풀의 기공닫힘에 미치는 살리실릭산과 그 유사물의 효과)

  • 이준상
    • Journal of Environmental Science International
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    • v.4 no.4
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    • pp.317-321
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    • 1995
  • ABA and SA showed different effect on stomatal closing on same condition. The addition of 1 M salicylic acid to fully opened stomata resulted in a significant reductionn of 22 % in stomatal aperture. However, 1 mM ABA reduced 73 % of stomatal aperture. The light absorption spectra of the salicylic acid solution showed that SA was degraded within 1 hour. Therefore, SA solution was resupplied % the detached epidermis every 30 min. during incubation and it was found that even at 10 $\mu$M SA induced stomatal closing significantly. Its effect was also greatly pH dependent. The reduction of stomatal aperture caused by 1 mM SA was most effective at lower pH (pH 7.2, 5 %: pH 6.2, 40 %; pH 5.2, 78 %). Therefore, if SA was properly treated to the epidermal strips in the medium, the effects of SA on stomatal closing were similar with those of ABA.

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