EXCESS MOLAR VOLUMES AND DEVIATIONS IN VISCOSITY OF THE BINARY MIXTURES OF 1-PENTANOL + AROMATIC HYDROCARBONS AT T = 298.15 K

The densities, ρ and viscosities, η of pure 1-Pentanol, toluene, ethylbenzene, propylbenzene, and those of their binary mixtures covering the whole composition range have been measured at 298.15 K under atmospheric pressure. Excess molar volumes, E Vm , partial molar volumes, Vi , deviations in viscosity, ∆η and excess free energies of activation, E G# ∆, have also been calculated from the ρ and η data. To obtain correlation coefficients and standard deviations E Vm , ∆η and E G# ∆were fitted to Redlich–Kister type function in terms of mole fraction. In the whole range of composition, E Vm were found to be positive for 1-pentanol + ethylbenzene and + propylbenzene, but 1-pentanol + toluene system showed negative E Vm in the alcohol-rich region for. The ∆η and E G# ∆ values were the negative for all the binary mixtures

EXCESS MOLAR VOLUMES AND DEVIATIONS IN VISCOSITY OF THE BINARY MIXTURES OF 1-PENTANOL + AROMATIC HYDROCARBONS AT T = 298.15 K

The densities, ρ and viscosities, η of pure 1-Pentanol, toluene, ethylbenzene, propylbenzene, and those of their binary mixtures covering the whole composition range have been measured at 298.15 K under atmospheric pressure. Excess molar volumes, E Vm , partial molar volumes, Vi , deviations in viscosity, ∆η and excess free energies of activation, E G# ∆, have also been calculated from the ρ and η data. To obtain correlation coefficients and standard deviations E Vm , ∆η and E G# ∆were fitted to Redlich–Kister type function in terms of mole fraction. In the whole range of composition, E Vm were found to be positive for 1-pentanol + ethylbenzene and + propylbenzene, but 1-pentanol + toluene system showed negative E Vm in the alcohol-rich region for. The ∆η and E G# ∆ values were the negative for all the binary mixtures

Internet of Things Cloud: Architecture and Implementation

The Internet of Things (IoT), which enables common objects to be intelligent and interactive, is considered the next evolution of the Internet. Its pervasiveness and abilities to collect and analyze data which can be converted into information have motivated a plethora of IoT applications. For the successful deployment and management of these applications, cloud computing techniques are indispensable since they provide high computational capabilities as well as large storage capacity. This paper aims at providing insights about the architecture, implementation and performance of the IoT cloud. Several potential application scenarios of IoT cloud are studied, and an architecture is discussed regarding the functionality of each component. Moreover, the implementation details of the IoT cloud are presented along with the services that it offers. The main contributions of this paper lie in the combination of the Hypertext Transfer Protocol (HTTP) and Message Queuing Telemetry Transport (MQTT) servers to offer IoT services in the architecture of the IoT cloud with various techniques to guarantee high performance. Finally, experimental results are given in order to demonstrate the service capabilities of the IoT cloud under certain conditions.Comment: 19pages, 4figures, IEEE Communications Magazin

Performance Evaluation of Ad Hoc Network over Moving Vehicles in a City

A mobile ad hoc network (MANET) is a collection of wireless mobile nodes that can dynamically form a temporary network without the aid of any existing network infrastructure. Wireless connectivity on vehicles is an important mode of communication. It is more challenging to provide high-bandwidth networking over fast moving vehicles. Ad Hoc network can be formed on fast moving vehicles where the interior node acts as rely node. A dynamic routing protocol is needed for a node to exchange data with another. In this research work, we consider the traffic density of a typical district town where traffic density much lower than a metropolitan city and vehicle speed is regulated according to traffic law. We have studied two routing protocols AODV and DSR in city traffic. According to our study, AODV shows performance than DSR on city roa

The Effect of Web Reinforcement on the Shear Capacity of Brick Aggregate Concrete Beams

Shear capacity of reinforced brick aggregate concrete beams without any web reinforcement and with varying ratio of web reinforcement was studied in this investigation. Deflections of beams and cracks during the progress of loading were recorded. Brick aggregate concrete beams with web reinforcement and two layers of tensile reinforcement were found to have increased cracking shear stress by a considerable amount. Equations for cracking and ultimate shear stresses were suggested within the scope of this study. The experimental values of ultimate shear strength of beams were compared with the values obtained by equations proposed by ACI and other researchers. The equations proposed herein were found to represent the test results better than those of other researchers while remaining on the conservative side. It is hoped that the equations developed herein will provide a rational and basic point of departure from the prevailing concept and will help towards the formulation of a suitable code to provide web reinforcement for brick aggregate concrete beams