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  • Open Access

    ARTICLE

    SWRR: The Link Scheduling Algorithm Based on Weighted Round-Robin

    Tianbo Lu1,2,*, Ru Yan1,2, Chao Li3,*, Lihua Yin3, Hao Chen1, Xieyu Zou4

    CMC-Computers, Materials & Continua, Vol.59, No.3, pp. 965-982, 2019, DOI:10.32604/cmc.2019.05635

    Abstract With the rapid development of the Internet, people pay more and more attention to the protection of privacy. The second-generation onion routing system Tor is the most commonly used among anonymous communication systems, which can be used to protect user privacy effectively. In recent years, Tor’s congestion problem has become the focus of attention, and it can affect Tor’s performance even user experience. Firstly, we investigate the causes of Tor network congestion and summarize some link scheduling algorithms proposed in recent years. Then we propose the link scheduling algorithm SWRR based on WRR (Weighted Round More >

  • Open Access

    ARTICLE

    Renal dysfunction is associated with higher central venous pressures in patients with Fontan circulation

    Christopher R. Broda1, Hamsini Sriraman2, Devanshi Wadhwa2, YunFei Wang1, Hari Tunuguntla1, Ayse Akcan-Arikan3,4, Peter R. Ermis1, Jack F. Price1

    Congenital Heart Disease, Vol.13, No.4, pp. 602-607, 2018, DOI:10.1111/chd.12617

    Abstract Purpose: Elevated central venous pressure (CVP) has deleterious effects on several organ systems in patients with Fontan circulation. However, the relationship between CVP and estimated glomerular filtration rate (eGFR) has not been assessed in patients with Fontan circulation.
    Methods: Patients with Fontan circulation whose hemodynamics were assessed by catheterization between 1987 and 2015 and had a serum creatinine measured within 72 hours prior to the procedure were included for analysis. Patients with primary kidney disease were excluded. Renal function was calculated by “bedside Schwartz” equation in children (< 18 years) and Modification of Diet in Renal Disease… More >

  • Open Access

    ARTICLE

    Serial cardiac MRIs in adult Fontan patients detect progressive hepatic enlargement and congestion

    Matthew J. Lewis1, Elizabeth Hecht2, Jonathan Ginns1, Joshua Benton2, Martin Prince2, Marlon S. Rosenbaum1

    Congenital Heart Disease, Vol.12, No.2, pp. 153-158, 2017, DOI:10.1111/chd.12422

    Abstract Background: The progression of hepatic disease in adult Fontan patients is not well understood. They reviewed the experience with serial cardiac MRIs (CMR) in adult Fontan patients to determine if hepatic anatomic markers of prolonged Fontan exposure were present and if clinical predictors of progressive hepatic congestion could be identified.
    Methods and Results: A retrospective cohort study of all adult Fontan patients who had undergone at least two CMRs was performed. Hepatic dimensions, inferior vena cava (IVC) size, right hepatic vein (RHV) size and spleen diameter were determined from images acquired at the time of clinically guided… More >

  • Open Access

    ARTICLE

    Numerical Simulation and Natural Computing applied to a Real World Traffic Optimization Case under Stress Conditions:

    M.J. Galán Moreno, J.J. Sánchez Medina, L. Álvarez Álvarez E. Rubio Royo1

    CMES-Computer Modeling in Engineering & Sciences, Vol.50, No.3, pp. 191-226, 2009, DOI:10.3970/cmes.2009.050.191

    Abstract Urban traffic is a key factor for the development of a city. There exist many different approaches facing traffic optimization. In our case we have focused on traffic lights optimization. We have designed and tested a new architecture to optimize traffic light cycle times. The purpose of this research is to demonstrate the good performance of our architecture in a congested scenario. We have simulated several congestion situations for a very large real world traffic network - "La Almozara" in Zaragoza, Spain. Our results seem encouraging in this extreme situation. As we increase the load More >

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