International Journal of Advanced Science and Technology

10

Authors: Hwan-Souk Yoo, Giovanni A. Cagalaban, Sang-Ha Kim

The current Internet protocol, version 4, known as IPv4, poses several problems such as impending exhaustion of its address space, configuration and complexities due to rapid growth of the Internet and emerging new technologies. As a result, IETF developed the next generation IP, called IPv6, to not only eliminate the shortcomings of IPV4 but also deliver new features and services. Transition technologies were developed to support the transition from the IPv4-based Internet to IPv6-based Internet. This paper discusses the 6to4 mechanism, a powerful IPv6 transition tool that will allow both traditional IPv4-based Internet end-user sites and new IPv6- only Internet sites to utilize IPv6 and operate successfully over the existing IPv4-based Internet routing infrastructure. This paper also outlines the security issues brought about by the connectivity and interoperability of IPv6 to IPv4 domains particularly the 6to4 mechanisms.

12

Authors: Pooja Agrawal, M. Hanmandlu, Brejesh Lall

This paper describes a system to classify the off-line handwritten Hindi characters into several groups based on some similarity measure. A novel method is proposed for finding the header line, based on end points and pixels positions in the top half part of the character image. The algorithm works in the presence of slant of the header line. After the identification and removal of header line, all the characters are coarse classified. A new algorithm is designed for the identification of presence and position of vertical bar in the handwritten Hindi characters. A coarse classification rate of 97.25% has been achieved in the simulation study.

16

Authors: Sasi Gopalan, Madhu S Nair and Souriar Sebastian

An image can be considered as a fuzzy subset of plane. Fuzzy entropy measuring the blur in an image is a functional which increases when the sharpness of its argument image decreases. In this paper we consider three parameters such as the intensification parameter t, the fuzzifier fh and crossover point c. The partially ordered set and lattice theory defined in section 2 strengthens the selection of any value in the interval [0, 1] such that the image can be enhanced. Here we verify the approximate value of c and visual observation image enhancement in different figures. By entropy minimization technique we construct an approximation of the ideal image and for that we apply the enhancement operation to the low contrast image. This can be done by an optimization process that minimizes a criterion function.

8

Authors: Sungwon Park

Patients with schizophrenia are known to be impaired in several areas of emotional processing, including psychophysiological reactivity. This study investigates the preliminary autonomic reactions and recognition of schizophrenic patients according to basic emotional conditions. The parameters such as electrodermal activity (Skin conductance response, skin conductance level), heart rat, and respiration were measured by using emotion evoked stimuli. We found out that there were no differences of accuracy for recognition with the target emotion between groups. Also, we found out that in anger (heart rate), fear (electrodermal activity, respiration), and sadness (heart rate, respiration) condition, there was a difference of physiological responses between groups.

10

Authors: B.V. Ramana Reddy, A. Suresh, M. Radhika Mani and V.Vijaya Kumar

Textures are one of the important features in computer vision for many applications. In the literature, most of the attention has been focused on the texture features with minimal consideration of the noise models and window selection. To overcome this, in the present paper the features are constructed on preprocessed methods applied on the texture image by considering different types of windows. These features offer a better classification rate. The experimental results on various Brodatz textures clearly demonstrate the efficiency of the proposed method.

12

Authors: Feruza Sattarova Y., Sattarov Shavkat Y., Tadjibayev Furkhat A. and Tai-hoon Kim

In this paper a structure of business service management integrated with security management is offered. Our BSM model with security approach is the hierarchy of data management in any growing business. It creates a logical flow of data from its inception into the organization through the management levels. Thus, allowing for proactive business decisions to be made on a consistent basis. The end result is an increase in both corporate flexibility and profitability. It encompasses the process and use of Customer Data Management, Customer Relationship Management, Enterprise Resource Planning and Business Insurance all supported by a robust Service Desk. Information is an essential resource for all businesses today and is the key to growth and success. However, we need to ensure that the information held on our IT systems is secure. The impact of a security breach may be far greater than we would expect. The loss of sensitive or critical information directly may not only affect our competitiveness and cash flow but also damage our reputation - something which may have taken us years to establish and which may be impossible to restore. In our paper we introduce a structure of Business Service Management (BSM) with security approach offering an advanced model of integrated secure BSM model.

8

Authors: Debnath Bhattacharyya and Farkhod Alisherov A.

With the familiarization of the penetration testing, more and more companies look for professionals in penetration testing to perform a penetration test. While professional skills are required in order for the test to be effective, certification of the penetration tester or penetration team is required and is more and more demanded. This paper suggests a methodology in choosing a penetration tester or a penetration testing team, and a brief certification listing is given.

10

Authors: Byeong-Ho Kang and Maricel O. Balitanas

Data security plays a crucial role in modern times most business is transacted over the internet and even to wireless devices. This paper presents the vulnerabilities found in VPN using IPsec and suggested a set of Policy as a Defensive measure. Such policy suggested applies to implementations of VPN that are directed through an IPsec concentrator and to all company’s employee, contractors, consultants, temporaries and other workers including all personnel affiliated with the third parties utilizing VPNs to access the company’s network.

6

Authors: Deen Kotturi and Seong-Moo Yoo

Whirlpool hash function should be capable of processing the input data streams at high speeds. We propose a fully synchronous parallel pipelined architecture with ten stages of pipelining between rounds, and internal pipelining within each round stage. The proposed architecture can tremendously improve the performance of Whirlpool hash function. Our final implementation can encrypt continuous bit streams seamlessly, achieving a throughput of 56.89 G bps, which is considerably high compared to existing implementations in literature.

10

Authors: P. Calduwel Newton and Dr. L. Arockiam

The usage of mobile network is significantly growing and it can be used in mobile platforms such as airplane, train, bus, car, etc. It is very useful for day-to-day activities of human beings. A mobile network can be connected to the Internet anywhere at anytime. But all these comforts depend on the technological aspects. The differences between the application demand and network performance are inevitable. These differences determine whether the Quality of Service (QoS) is met or not. There are different types of Internet applications and mobile network interfaces. The Internet applications are file transfer, telephony, video conferencing, etc. The QoS requirements will vary from one application to another application. The mobile network interfaces are GPRS, IEEE 802.11x, WiMAX, etc. The data rates will vary from one interface to another interface. This paper aims to propose an intelligent technique which forwards data packets via suitable network interface. The outcome of this paper greatly improves QoS in multihomed mobile network.

8

Authors: A. K. Borah, R. K. Deka and A. Gohain Barua

Coronary artery bypass surgery is currently a widely used technique for relief of the effects of coronary atherosclerosis. This disease of coronary arteries is a major cause of death. It has been found that, in the developed countries 25%-30% people become victims of the coronary heart disease, which is described by WHO as the modern epidemic.

10

Authors: Sunguk Lee, Haniph A. Latchman and Byungjoo Park

Bluetooth is a wireless communication technology that provides short-range, small-size, low-cost, and low-power connectivity among mobile devices. The MAC protocol for Bluetooth is based on a Time Division Duplex (TDD) scheme, where the master determines channel access to all other slaves in the piconet. Hence, the polling scheme used by the master has a significant effect on the Bluetooth system performance. Accordingly, this paper proposes an enhanced Limited Round Robin with a priority policy for Bluetooth. In simulations, the proposed scheduling algorithm demonstrates a better overall performance in a Bluetooth network.

14

Authors: Amar Balla

The use of ICT (Information and Communication Technology) to activate distance education courses has made it possible to create new ways of training, certainly more efficiently and potentially more effectively. Internet, and in particular the World Wide Web, is becoming a learning space which is used increasingly in several educational contexts from secondary schools to post graduate courses. Learners can choose to take training modules and, in some cases, entire programs through the Net; the on line environment may be the only possibility to acquire knowledge on some topics for learners who do not have the opportunity to attend traditional classes; besides the communicative power of Internet tools can allow the activation of new ways of teaching/learning. As the number of on line learners is increasing, it is crucial for training centers and institutions to create effective on-line learning environments according to the specific needs of each learner. In fact, a lot of aspects have to be taken into account to project and activate a good distance course: effective presentation of contents, consideration of individual differences of users, adoption of several models according to educational objectives, and so on. In this paper we propose a pedagogical learning environment which and which makes students more interactive in learning process. Our system lets students collaborate among them in order to construct their knowledge as much as possible and to find solutions of many problems that occur during learning.

18

Authors: Chunyi Song, Shigeru Shimamoto

In this paper, we investigate a new solution for combined amplitude and phase modulation by employing elliptical signals. Signal characteristics of the proposed schemes are analyzed and then detection methods are investigated. The derived closed-form BER approximations, i.e. theoretical analysis results, are shown to be in agreement with simulation results. Furthermore, both results show that proposed schemes, compared conventional modulation schemes, can achieve better noise performance while suffering lower spectral efficiency, and can better realize trade-offs between error probability and spectral efficiency by dynamically varying eccentricity.