Archives-October 2014

It is astonishing to note that, Special Relativity Theory Equations are incongruous beyond half the speed of light, by mere Number Theory considerations, specifically ‘time dilation’ and ‘length contraction’ equations. Nevertheless, there is an exception to this theory, for particles of masses less than 1kg, or time intervals between events which are less than 1s or length contraction less than 300000km ,where it could be absolutely accurate as Einstein predicted and therefore it implies, these could change upto only 13.3%.

An Ad-hoc network is a collection of mobile nodes dynamically forming a temporary network without the use of any existing network infrastructure or centralized administer. Because of limited communication range among mobile nodes in ad-hoc network, several network hopes may be needed to deliver a packet from one node to another node in the wireless network. In such a network each node acts as an end system as well as a relay node (or router). Most of the routing algorithms designed for MANET such as AODV and DSR are based on the assumption that every node forwards every packet. But in practice some of the nodes may act as the selfish nodes. These nodes use the network and its services but they do not cooperate with other nodes. Such selfish nodes do not consume any energy such as CPU power, battery and also bandwidth for retransmitting the data of other nodes and they reserve them only for themselves. The original AODV and DSR routing algorithms can be modified to detect such selfish nodes. In this paper, we survey innovated techniques as well as proposed techniques to detect Selfish Nodes for MANET. Finally we provide some directions for further research.

Lean Six Sigma is a powerful business improvement system that is rapidly being deployed across several manufacturing and service sectors. This paper introduces environmental professionals—including environmental health and safety (EHS) managers, environmental agency personnel, and non-governmental environmental technical assistance providers—to these methods. This paper also evaluates how Lean Six Sigma can be related to the environment and provides guidance on how environmental professionals can leverage Lean Six Sigma activities to generate better environmental and operational results. The challenge, and opportunity, for environmental professionals is to figure out how to leverage Lean Six Sigma improvement efforts in a seamless way that embeds environmental considerations and sustainability concepts into the normal way of doing business. This paper is designed to assist environmental professionals in meeting Lean Six Sigma practitioners where they are; help them translate environmental concepts into the Lean Six Sigma lexicon; and make environmental improvement efforts a seamless, integrated aspect of delivering waste-free value to meet customers’ needs.

We consider a singular Sturm-Liouville differential expression with an indefinite weight function and we present a necessary condition for similarity of indefinite Sturm-Liouville operators to self-adjoint operators. Using this result, we construct two examples and prove that none of them is similar to a self-adjoint operator.

We study the Jordan Canonical Forms of complex s-orthogonal and s-symmetric matrices, and consider some related results.

The main objective of this study is to find out if Organizational characteristics intervene in the relationship between CRM and organizational performance in the Nigerian insurance industry. Relevant literature was reviewed and a model consisting of fourteen variables was conceptualized and tested by means of empirical data collected through a questionnaire survey. A total of one hundred and eighty (180) copies of questionnaires were administered, one hundred and forty nine (149) copies were duly completed and returned. This represents a response rate of 82.78%. Partial correlation was used to test the hypothesis. Findings show that there is a positive relationship between customer focused and customer satisfaction in the Nigerian insurance industry. Findings also show that Organizational characteristics intervene in the relationship between CRM and organizational performance in the Nigerian insurance industry. The study also shows that the strength of the intervention of companies’ image is stronger than that of branch network. The study recommended that insurance companies should pay more attention to their companies’ image and pay less attention to proliferation of branches.

The accusative of this field of study is to build up a more effective research to obtain and to understand the effects and the relation between/on the process parameters depth of cut, spindle speed and cutting feed rate on the surface roughness and to build a multiple regression model and predict the surface roughness values of machining parameters in the end-milling process. By the settling of experiments is to be designed and begin the enactment of surface quality and surface finish for the end-milling process have been performed. This set of experiments can provide brainstorm into the troubles of operating and controlling the finish of machined surfaces when the machining process parameters are aligned to obtain a certain surface finish. The set of experiments and the model, which includes the effect of depth of cut, spindle speed and cutting feed rate, and the interaction between any two-variable, which predict the surface roughness values with an accuracy of about 5.22 %.

Wireless based target detection can also be used to detect the vehicles and human or animals. These systems are usually lightweight devices that automatically monitor the local activities in-situ, and transfer target detection and classification reports to the processing center through wireless. It is necessary that the monitoring system at borders must prove to be more efficient. This system based on Seismic sensor and PIR sensor is designed to find the target which is moving on the ground.Ref[1,2,3,4] In the existing system the Unattended Ground Sensors are used in target detection. The efficiency of the existing system is limited by false alarm rates. Also power consumption becomes a consideration in the existing system. In the proposed system PIR and seismic sensors are used in target detection. The PIR Sensor is used to track down whether the moving object is living body or machine. If it is living body, the seismic sensor is used to track down whether it is human being or animal based on the absorbed signals. If it is vehicle, then seismic sensor is used to classify the type of vehicle moving on the ground. All these process are monitored and controlled using PIC16F877A microcontroller. The status is sent through GSM as a message to the Mobile Section.

This paper development of traditional dances in Tanzania by using the lens of youth involved in performance activities. The paper uses firsthand information from four dance groups; Livangala, Lumumba, UMATI and Bongo fleva artists to argue against less participation of youth in dance. The paper revealed that culture; economic and administrative factors undermine the motivation of youth to participate in traditional dances and, thus, increased their enthusiasm in Bongo fleva. The paper offers a critical analysis of challenges that youth faced in traditional dances and how such challenges forced them to turn their interests to Bongo fleva. Following the shift of interests from traditional dances to Bongo fleva, the paper suggests for social, economic and political transformation to increase the participation of youth in dance.

In this work the void fraction for oil-water mixture are measured by using radiation source 137Cs with activity of 0.636 µCi. The plastic-tube contain the mixture are putting interior beaker and subjected into radiation to measure the void fraction. There are many applications industries, such as, oil and gas pipelines, heat exchangers etc.