This paper is a synthesis of the information in the report Inventory, Bibliography and Synthesis of Qualitative Research in the European Union which was co-ordinated for the European Monitoring Centre for Drugs and Drug Addiction, Lisbon, Portugal, by the National Addiction Centre, London, UK. It is based on the work of a network of qualitative researchers from the European Union. The report in...

Edge detection is one of the most commonly used operations in image analysis. Several edge detectors have been proposed in literature for enhancing and detecting of edges. In this paper a new and optimal approach of edge detection based on Cellular Automata (CA) has been proposed. The idea is simple but effective technique for edge detection that greatly improves the performances of complicated...

Feature detection is very important to image processing area. In this paper we compare and analyze some characteristics of image processing algorithms for corner and blob feature detection. We also analyze the simulation results through image matching process. We show that how these algorithms work and how fast they execute. The simulation results are shown for helping us to select an algorithm...

Follicular lymphoma (FL) is characterized by the t(14;18)(q32;q21) chromosomal translocation which can be detected by polymerase chain reaction (PCR) in approximately 70% of cases. The aim of our retrospective study was to evaluate the sensitivity and the reproducibility of both conventional qualitative and quantitative PCR assays for detection of the t(14;18)(q32;q21) chromosomal translocation...

This paper addresses a comparative analysis of the existing schemes for fault detection in continuous-time stochastic dynamical systems. Such schemes prove to be efficient when dealing with specific types of fault functions; on the other hand, they show very different performance sensitivity when dealing with new fault profiles and system noise. The study suggests the use of a combined scheme, ...

Social events can generate high influxes of people transitioning various locations in a city. They can be considered to have a considerable impact on the local economy, whether they are sport events, concerts or festivals. These events are capable of generating sudden changes in the activity landscape of a city, with the neighborhoods that host events becoming unusually busy and active compared...

Congestion is one of the major problems in today’s internet. So for managing traffic and to keep the network stable, Congestion Control algorithms are used. Queuing is one of the important method in traffic management system. This paper gives a comparative analysis of three queuing mechanisms Droptail, Random Early Detection and Non Linear Random Early Detection on the basis of various performa...

The repetitive behavior of a device or system can be described in two ways: a detailed description of one iteration of the behavior, or a summary description of the behavior over many repetitions. This paper describes an implemented program called AIS that transforms the first type of description into the second type. AIS deals only with behavior where each repetition changes parameters by the ...

Besides the growth of information technology, the security has remained a main challenging issue for organizations. Most of the organizations are facing an increasing number of threats every day in the form of viruses and attack etc. Since many different mechanisms were opted by organizations in the form of intrusion detection and prevention system to protect its organizations for these kinds o...

Decision fusion is one of hot research topics in classification area, which aims to achieve the best possible performance for the task at hand. In this paper, we investigate the usefulness of this concept to improve change detection accuracy in remote sensing. Thereby, outputs of two fuzzy change detectors based respectively on simultaneous and comparative analysis of multitemporal data are fus...