VOLUME 1, ISSUE 1, SEPTEMBER 2014

Abstract: This research explores the influence of different compaction methods on the strength characteristics of roller- compacted concrete (RCC) with plain cement at a 15% cement content and a predetermined Optimum Moisture Content (OMC) of 7%. The study focuses on both compressive and flexural strengths, examining three compaction methods: Vibratory Compaction, Standard Proctor Compaction, and Marshall Compaction. The study finally recommended Marshall compaction for roller compacted concrete due to higher flexural and compressive strengths

Keywords: roller-compacted concrete, compaction types, strength.

Abstract: In the present work thin films of Boron Subphthalocyanine Chloride (sub pc) have been prepared by thermal deposition technique. The prepared films have been structurally characterized by X-ray diffraction (XRD), atomic force microscopy (AFM) and field emission scanning electron microscopic (FESEM) studies. The optical characterization of the film has been done by UV-Vis absorption spectrophotometry and by spectroscopic ellipsometric technique. The admittance spectroscopy of the film was done over five orders of frequency range. The carrier mobility through the films has been extracted by differential susceptibility method. Further,AC and DC conductivity of the sub pc film along with key dielectric parameters are also being reported. The Transport mechanism of carriers has been found to be hopping in nature.

Keywords: Boron Subphthalocyanine Chloride, Dielectric studies, Admittance Spectroscopy

Abstract: Steel gets corroded under the action of chemical reaction with the environment. All the transition metals, iron, copper, zinc and nickel are slower to oxidized, they form passivation layer of oxide that protects the interior. Methods to reduce the activity of the exposed surface are by passivation and chromate conversion [2]. The main aim is to compare the corrosion resistance of different types of steels available carbon steel, stainless steel, galvanized steel, electroplated steel, tool steel, Damascus steel, wootz steel, MMFX steel as a part of that, we compared carbon steel, stainless steel and MMFX steel for research. The tests carried out for these steels are ASTM B117 and ASTM B895 to study the behavior under corrosion. The principal reason for selecting a new reinforcement material for concrete structures is to improve both the life span of the structure and cost effectiveness of the structural system. This paper is focusing on different types of steels under corrosion tests.

Keywords: ASTM B117, ASTM B895, corrosion salt spray, Steel.

Abstract: Load balancing is essential for optimization of resources in distributed environments. The major goal of the cloud computing service providers is to use cloud computing resources efficiently to enhance the overall performance. Load balancing in cloud computing environment is a methodology to distribute workload across multiple computers to achieve optimal resource utilization with minimum response time. The proposed system pave the way for the green computing by allocating the virtual machine based on the load its processing for the optimization of number of servers in use. The performance of the algorithm is analyzed using Cloudsim simulator .The simulation result ensures that all the processors in the system as well as in the network does approximately equal amount of work at any instant of time by comparing with other algorithms by its spoofing abilities.

Keywords: Cloud Analyst, Cloud computing, Load Balancing, Resource Utilization, Virtual Machines

Abstract: In this paper, a Least-Disruptive topology Repair (LeDiR) algorithmic rule is presented. LeDiR may be a localized and distributed algorithmic rule that leverages existing route discovery activities within the network and imposes no extra pre-failure communication overhead. Wireless Sensor and Actor Networks (WSANs) is a network formed with the group of sensors and actors. Those sensors and actors are connected by wireless medium to perform distributed sensing and exploit tasks. In such a network, sensors gather data concerning the physical world, whereas actors take choices and so perform acceptable actions upon the surroundings that permit remote, machine-controlled interaction with the surroundings. This paper overcomes these shortcomings and presents a Least-Disruptive topology Repair (LeDiR) algorithm. LeDiR relies on the local view of a node about the network to devise a recovery plan that relocates the least number of nodes and ensures that no path between any pair of nodes is extended. LeDiR is a localized and distributed algorithm that leverages existing route discovery activities in the network and imposes no additional prefailure communication overhead. The performance of LeDiR is analysed mathematically and validated via extensive simulation experiments.

Keywords: LeDiR, WSANs, DCR, DARA

Abstract: Mobile Ad hoc Network (MANET) is an infrastructure less network. Attacks in MANET are due to unreliability, unfixed topology, limited battery power and lack of centralized control. Enhanced Adaptive Acknowledgement (EAACK) is one of the schemes used to detect misbehavior nodes in the network. It can detect the misbehaving node but cannot decide upon which one of the node associated with that link are misbehaving. It may have a chance of same misbehaving node to act as a valid route. This kind of misbehaving node is called blackhole attack. In this paper, Path Tracing Algorithm (PTA) is proposed, to find and eliminate the exact misbehaving node in network. Elliptic Curve Cryptography (ECC) algorithm is used to secure the data while passing through the network. The proposed work is simulated using NS-2 and is analyzed using certain parameters such as routing overhead, packet delivery ratio and end to end delay.

Keywords: Enhanced Adaptive ACKnowledgement (EAACK), Path Tracing Algorithm (PTA), Elliptic Curve Cryptography (ECC), DSR, Mobile Ad hoc NETwork (MANET).

Abstract: The development of software patterns(SPs)is aimed at providing a reliable and reusable framework for resolving similar problems within distinct contexts. To accomplish this objective competently, it is imperative to document these patterns effectively to facilitate the comprehension of their concepts to users, thereby encouraging their use over and over again. Thus, the documentation of patterns needs to explicitly explain their relationship with the quality attributes (QAs) that they support, or hinder, in order to satisfy the implementation of stakeholders” requirements. The variation in patterns descriptions in contemporary literature renders the explanation of the above relationship complex and difficult to follow. This eventually deters developers from employing patterns or causes them to overlook their QAs. Either of these scenarios may result in significant expense in terms of development time and cost, and/or attaining required system quality. This paper tries to address the aforementioned problem by comparing and analysing six well known software pattern resources, pinpointing the aspects of variation amongst authors descriptions, which lead to different relationships between patterns and QAs, which in fact cause confusion among users. Once the variance concept amongst these six resources in terms of terminology and description has been addressed, we derive a relationship matrix between the software patterns (included in these resources) and the standard ISO-9126 QAs. We believe that this research work is a positive contribution to the enhancement of techniques for documenting software patterns. It further helps improve pattern selection by users via improved prediction of output quality. Thus, to provide a reliable method for maintaining and representing the research work, we have created a database application that identifies the above relationship. This database also includes discrepancies among the documentation approaches of the six resources that we have studied, as well as the variance in pattern categorisations and terminologies. The pattern database should also serve future research endeavours. This research study received a positive response as per the findings of a questionnaire aimed at software professionals and based on the context of the preceding problem. 97 precent of the participants, from six different nations, answering the questionnaire supported this study.

Keywords: Software engineering, Software architectures, Patterns, Quality concepts, Quality analysis and evaluation, Documentation