• Title/Summary/Keyword: pod

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The Ordering of Hitting Times of Multivariate Processes

  • Baek, Jong-Il
    • Journal of the Korean Statistical Society
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    • v.25 no.4
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    • pp.545-556
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    • 1996
  • In this paper, we introduce a new concept of partial ordering which permits us to compare pairs of the dependence structures of a new hitting times for POD multivariate vector process of interest as to their degree of POD-ness. We show that POD ordering is closed under convolution, limit in distribution, compound distribution, mixture of a certain type and convex combination. Finally, we present several examples of POD ordering processes.

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Performance Analysis According to The Number of Pods Managed by Kubelet in Kubernetes (Kubernetes의 kubelet이 관리하는 pod의 수에 따른 성능 영향 분석)

  • Kwon, Min-su;Lee, Jae-Hak;Myung, Rohyoung;Yu, Heonchang;Gil, Joon-Min
    • Proceedings of the Korea Information Processing Society Conference
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    • 2018.10a
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    • pp.74-76
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    • 2018
  • 클라우드 벤더들은 많은 컨테이너를 효율적으로 배포하기 위해 컨테이너 관리 도구를 사용한다. 컨테이너 관리 도구는 Availability, Self-healing, Automated rollouts and rollback 등 여러 기능을 제공한다. 많은 관리 도구 중 Kubernetes는 가장 최소 단위로 컨테이너의 추상적인 모임 pod을 배포한다. pod에 대한 정보는 마스터에서 정의되며 슬레이브 노드에 배포된다. 슬레이브 노드에는 마스터의 명령을 받아 pod을 관리하는 노드 에이전트 kubelet이 생성된다. 하나의 노드에 할당된 자원과 상관없이 kubelet이 관리하는 pod의 개수가 많아지게 되면 작업 중인 pod이 CPU를 훔치는 오버헤드가 발생한다. 따라서 본 논문에서는 pod의 개수에 따른 CPU사용률 실험을 통해 kubelet이 효율적으로 관리할 수 있는 pod의 개수를 분석한다.

Characterization of Anionic Peroxidase Induced by Low Host-Specific Elicitor in Suspension Cultures of Rose (Rosa sp.) (장미(Rosa sp.) 현탁배양세포에서 숙주 특이성이 낮은 Elicitor에 의해 유도되는 Anionic Peroxidase의 특성)

  • 신미선;양은진;이인철
    • Korean Journal of Plant Tissue Culture
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    • v.25 no.4
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    • pp.277-282
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    • 1998
  • Whereas cationic extracellular peroxidases (PODs) were observed in the suspension cultures of rose (Rosa sp. L. cv Pual's scarlet) grown under normal conditions, new anionic isozymes were induced within 24 hr by the treatment of low host-specific elicitor (10 mg glucan/L media) prepared from yeast cell wall. Prominent anionic (pI 6.1) and cationic POD (pI 8.4) were purified and characterized to understand the physiological role of the enzymes. Both enzymes were purified (ca.200 fold) by the ammonium sulfate precipitation, ion exchange chromate-graphy and gel filtration chromatography. The Km values of the purified anionic POD for ferulic acid and $\textrm{H}_2\textrm{O}_2$ were 4.64 mM and 0.72 mM, whereas those of the cationic POD were 1.38 mM and 0.48 mM, respetively. The activity of the anionic POD as NADH oxidase was twice higher than that of cationic POD. The NADH oxidation in the anionic POD fraction was inhibited by 60% on the addition of 0.1 mM coniferyl alcohol, while that in the cationic fraction was inhibited by 15%.

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Pressure distribution near truncated POD attached on hydrofoil vessel (Hydrofoil 선박용 POD 변형에 따른 압력분포 특성)

  • Lee, Chun-Ki;Kim, Hee-Sung;Moon, Serng-Bae
    • Journal of Advanced Marine Engineering and Technology
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    • v.38 no.9
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    • pp.1106-1111
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    • 2014
  • This paper has a purpose to find out the characteristics of pressure distribution according to the POD shape installed in the Hydrofoil vessel, using the CFD. The results showed that as we cut the POD cross-section's basic shape along the x-axis from 0 to 8cm, the viscous resistance had decreased, but then the pressure resistance had increased modestly. However, the cutoff length of POD cross-section shape has close to 9cm, the viscous drag had increased and the pressure drag had decreased. As a result, we found out that the pressure resistance made more effects in POD shape than the viscous resistance, and the total resistance decreased near the 9cm of cutoff length.

Mechanism of Screen Shot for POD (POD를 위한 화면 스크린 샷 메커니즘)

  • Zhoukunpeng, Zhoukunpeng;Kang, Min-Jae;Yu, So-Ra;Jung, Hoe-Kyung
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2011.05a
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    • pp.599-601
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    • 2011
  • POD means system that can be print immediately when it is requested. For imagification of HTML data, COM component has problem that needs a lot of times. But it offers many types of supplementary services through endure delays of a reliable range to users this dissertation describes web based screen shot mechanism, procuration method for preview web site and utilization in POD system.

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A Study on the Pressure and Velocity Distributions by POD Shape of Hydrofoil Vessel (쾌속여객선의 POD 형상에 따른 압력과 속도 분포에 관한 연구)

  • Lee, Chun-Ki;Lim, Tae-Woo;Moon, Seong-Bae
    • Journal of Fisheries and Marine Sciences Education
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    • v.26 no.4
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    • pp.831-837
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    • 2014
  • This paper focuses on the effects of the changes in the resistance characteristics caused by the changes of the POD shape installed in the Hydrofoil vessel, using the CFD(Computational Fluid Dynamics). We input the POD sections' basic shape as the origin of the x and y axis. Then as we cut the x-axis 0 to 2 cm, and the more we cut it, the total resistance value had increased. However, we have recognized the fact that as we cut the POD section, 3 to 5 cm, the resistance value had rather decreased. Furthermore we found out the result that as the cut partition was larger; the POD cross-section would decrease, resulting in the linear decrease of the viscous force.

On the Model Tests for POD Propulsion Ships

  • Go Seokcheon;Seo Heungwon;Chang Bong Jun
    • Journal of Ship and Ocean Technology
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    • v.9 no.1
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    • pp.1-10
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    • 2005
  • The procedures of model test and performance prediction for the CRP-POD propulsion ships, are studied. At the CRP-POD system, which are highly applicable to ultra large container carriers, RPM ratio of two propellers is not fixed, unlike conventional CRP system, and hence the power of each propeller must be predicted respectively. In this paper, a CRP-POD system is designed for 10,000 TEU class ultra large container carriers, and the characteristics of the CRP-POD system are experimentally studied. Finally, based on this study, the procedure of powering performance evaluation for CRP-POD propulsion ships is suggested. However, further studies on quantitative correction of the present procedure are required.

Stability Analysis of an Mounting Equipment for External Pod on Aircraft by Road Test (항공기 외장형 포드 장착장비의 주행 안정성 분석)

  • Lee, Jong-Hak;Jang, Jong-Youn;Kang, Young-Sik;Choi, Ji-Ho;Kang, Dong-Seok
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2013.10a
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    • pp.424-429
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    • 2013
  • The trolley carrying the pod moves along by the airfield runway. The pod through the trolley are subjected to vibration arising from the ground state, the precision optical components in the pod can have a significant impact. The road tests were conducted by using the measurement pod to remove the risk for the project. The measurement pod was composed with the ACRA, sensors, battery. The accelerometers were attached to get the acceleration through the road condition. The PSD envelop was calculated by FFT from the acceleration. The driving safety was proven through comparing the measurement data and MIL-STD-810G specification.

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2010년 일본 POD시장 7400대, 연평균 20% 성장 전망-Yano경제연구소 시장동향 분석결과

  • Korea Optical Industry Association
    • The Optical Journal
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    • s.113
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    • pp.50-51
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    • 2008
  • 일본의 POD서비스시장 규모는 2006년 1,765억 엔으로서, 연평균 10% 이상의 성장을 계속하여 2009년에는 2,447억 엔에 달할 것으로 예측된다. POD대응기의 2006년도 출하대수는 약 4,000대이며, 연평균 15-20%의 성장을 계속하여 2010년에는 약 7,400대에 달할 것으로 예측된다. 현재 개인정보보호를 배경으로 한 아웃소싱 수요가 현재로선 대부분을 차지하지만 POD 활용의 폭은 꾸준히 확대되고 있다. 특히 가변형(Variable) 인쇄 등 용도의 확대와 공급처(Vendor)의 제품/솔루션의 개발이 향후 POD시장 발전의 주요 포인트가 될 것으로 보인다.

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The Effects of Water Extract of Polygonatum Odoratum (Mill) Druce on Insulin Resistance in 90% Pancreatectomized Rats (90% 췌장 절제 백서에서 둥굴레뿌리의 물추출물이 인슐린 저항성에 미치는 영향)

  • Park, Sun-Min;Ahn, Seung-Hee;Choi, Mi-Kyung;Choi, Soo-Ran;Choi, Soo-Bong
    • Korean Journal of Food Science and Technology
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    • v.33 no.5
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    • pp.619-625
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    • 2001
  • We determined whether the supplementation of Polygonatum Odoratum (Mill) Druce (POD) extract had a good effect on insulin resistance in peripheral tissues of 90% pancreatectomized (Px) and sham-operated (Sham) male Sprague Dawley rats. Px and Sham rats were divided into two groups; one group daily consumed 0.3 g of POD extracts per 1 ㎏ body weight for two months, and the other group had a placebo. All rats freely consumed a 40% fat diet. At the end of the experiment, a euglycemic hyperinsulinemic (EH) clamp was performed in a fasting, awake, and unstressed state to determine insulin resistance. At EH clamp, body weights were higher in Sham rats than Px rats, and serum glucose levels of baseline were affected by diabetic status and POD administration. Serum insulin concentrations were higher in Sham rats than Px rats, and POD administration decreased them in Sham rats compared to P. Glucose disposal rates in peripheral tissues increased with POD in both Px (n=10) and Sham (n=10) rats. But glycogen deposits in soleus muscle increased with POD administration in Px and Sham rats, and total glycogen synthase activity and fraction velocity were higher in POD groups. Triglyceride contents in quadriceps muscles decreased with POD in Px rats. In conclusions, POD improves insulin resistance by enhancing glucose utilization with increasing glycogen deposit and decreasing triglyceride contents in muscles.

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