Abstract-The present study aims at recognizing the problem of dynamic virtual machine (VM) Consolidation using virtualization, live migration of VMs from underloaded and overloaded hosts and switching idle nodes to the sleep mode as a very effective approach for utilizing resources and accessing energy efficient cloud computing data centres. The challenge in the present study is to reduce energy consumption thus guarantee Service Level Agreement (SLA) at its highest level.
Abstract:In this paper, a new four-moduli set {2 2n , 2 2n+1 −1, 2 n/2 + 1, 2 n/2 −1} for even n is introduced. This moduli set has 5n-bit dynamic range and well-formed moduli which result in a high speed RNS arithmetic unit. Furthermore, an efficient adder-based reverse converter is proposed for this moduli set by using New Chinese remainder theorem 2 (New CRT-II) algorithm. The proposed moduli set has a high speed RNS arithmetic unit and a reverse converter with lower hardware cost and delay in comparison to the recently introduced moduli sets {2 n −1, 2 n , 2 n +1, 2 2n+1 −1} and {2 n , 2 2n+1 −1, 2 n/2 −1, 2 n/2 +1, 2 n +1} with the same dynamic range.
Abstract-Cloud computing has become a universal trend now. So, for users, the reliability is an effective factor to use this technology. In addition, users prefer to implement and get their work done quickly. This paper takes into account these two parameters for resource allocation due to their importance In this method, the Imperialist Competitive algorithm with the addition of a cross layer of cloud architecture to reliability evaluation is used. In this cross layer, initial reliability is considered for all the resources and the implementation of their tasks and due to the success or failure of implementation, reliability of resources is increased or reduced. Reliability and makespan are used as a cost function in ICA for resource allocation. Results show that the proposed method can search the problem space in a better manner and give a better performance when compared to other methods.
To determine the association between both age and degree of albuminuria and pulse pressure in patients with type 2 diabetes, we conducted this study consisting of two cross-sectional observations. A total of 833 ambulatory and 107 hospitalized type 2 diabetic patients with serum creatinine <2.00 mg/dl were studied. Systolic blood pressure (SBP), diastolic blood pressure (DBP), and pulse pressure (PP) were compared among ambulatory patients stratified according to the degree of albuminuria, as well as according to age at 10-year intervals. In the hospitalized patients, 24-h blood pressure was monitored, and 24-h SBP, DBP, and PP were correlated with aortic pulse wave velocity (PWV) and mean intima-media thickness (IMT) of the carotid arteries. In the ambulatory patients, SBP and PP were greater in patients with microalbuminuria and clinical albuminuria, as well as in the older groups, whereas DBP tended to be lower in the older age groups. Multiple regression analysis adjusted for covariates including age indicated that increased albuminuria was independently associated with greater PP (p <0.001). In the hospitalized patients, stepwise increases were observed in SBP and PP (daytime, nighttime and overall 24-h), but not in DBP, in microalbuminuric and albu-minuric patients. SBP and PP were positively and DBP was negatively associated with aortic PWV; however, no association was found with IMT. In conclusion, PP is closely associated with higher age, degree of albu-minuria, and large artery stiffness in patients with type 2 diabetes. (Hypertens Res 2006; 29: 345-352)
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