Energy-efficient Scheduling of Cloud Data Center Servers

Abstract

Data center is a cost-effective infrastructure to store large data volumes and host large-scale service applications. Providers of cloud computing services are deploying data centers worldwide quickly. With lots of servers and switches. These data centers consume substantial quantities of energy, which contributes to high operating costs. Optimizing server and network energy consumption in information centers can therefore decrease operating costs. In a data center, power utilization is chiefly because of servers, network devices, and cooling systems, an effective energy-saving strategy is to consolidate computing and communication into fewer servers and network devices and then power off as many unneeded servers and network devices as possible. A new method of reducing the energy utilization of computer systems and networks in data centers while meeting the requirements of the cloud tenants for quality of service (QoS) is proposed here in this paper.

Influence of Silver Oxide Nanoparticles in the Enhancement of Electrochemical Properties of Binary Polymer Nanocomposite PTh-nAg2O

“…Figure 1a shows the FTIR spectrum of the polymer, which has characteristic absorption peaks at 3448, 1635, 1404, 1335, 1173, 1119, 1034, 679, and 486 cm − 1 corresponding to the O-H stretching vibration, C = C asymmetric stretching vibration, C = C symmetric stretching vibration, C-N stretching vibration, C-H in-plane deformation, C-H bending vibration, C-H inplane bending vibration, C-S stretching vibration, and C-S-C ring deformation, respectively [22,23]. Figure 1b shows all the characteristic peaks of polymers with some slight spectral intensity changes in the binary polymer nanocomposite (PTh-nAg 2 O) FTIR spectrum, in which the peaks of PTh at wave numbers 1404, 1335, 1173, 679, and 486 cm − 1 were shifted to 1427,1366, 1196, 694, 478 cm − 1 , respectively [24][25][26]. In Fig.…”

“…1b, the peak seen at 3448 cm-1 may be due to O-H stretching and deformation assigned to the water adsorption on the metal surface. The absorption band observed at 1628 cm -1 Ag − O are due to stretching vibration [25], while the band at 694 cm -1 corresponds to Ag-O interaction [27,28].…”