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Search Results: 1 - 10 of 206775 matches for " Dr. P. Santhi Thilagam "
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Protection of Web User’s Privacy by Securing Browser from Web Privacy Attacks
Sanket Baviskar,Dr. P. Santhi Thilagam
International Journal of Computer Technology and Applications , 2011,
Abstract: The Internet and World Wide Web being an essential part of everyone’s life, the users have become more conscious about their privacy. The user’s web privacy unfortunately, is not focused much by the current browsers. This paper focuses on the attacks which compromises user’s anonymity, grab user’s private data. It highlights the privacy attacks such as history sniffing, web beacons, browser fingerprinting. We focus on the protection of user’s information which is transferred over the network to the web server without the users consent rather than stealing attempts which fools the user and trap them to install malicious software which perform the theft, using social engineering techniques. A generic algorithm has been proposed in this paper which will stop the attacker from violating privacy. We have proposed a secure way of interaction between browser objects through browser API’S and the JavaScript. We developed an add-on which implements the proposed solution.
Optimizing Dependencies - A solution to Failure Proneness of software
Dr.G.AppaRao,,P. V. N. Santhi Swaroop
International Journal on Computer Science and Engineering , 2011,
Abstract: With the emerging technologies, large complex software isbeing built in terms of modules. Although the term ‘module’ is introduced to reduce the complexity in maintenance, but the dependencies among the modules is causing erroneous systems in existence.There is a need to architect/developer to look at these dependencies to be optimized. Predicting the dependencies is only possible by measuring the metrics of the system. Here in this paper we specify the different types of dependencies and notation of identified dependencies. A clear definition of these metrics is also provided.
Patch Antenna Design Analysis For Wireless Communication
International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering , 2013,
Abstract: A simulation of sixteen (hexadeci) faced microstrip patch antenna design using slit on the edge is discussed here. This antenna is fed using probe feed model. It is simulated using IE3D electromagnetic simulator. The simulated results of the antenna achieve the radiation parameters such as scattering parameter (S-parameter), radiation pattern and voltage standing wave ratio (VSWR). In S-parameter, the S11 parameter value is reached < -10 dB for the resonant frequencies 0.9 GHz, 0.87 GHz to 0.90 GHz and VSWR value is obtained < 2 for that same frequencies. The proposed antennas will be useful for 900 MHz band in wireless communication applications.
Monitoring and Protection of Oil and Gas Condition in Industrial Using Wireless Sensor Networks
Y. Chalapathi Rao,Dr.Ch.Santhi Rani,P. Lavanya
International Journal of Electronics Communication and Computer Technology , 2012,
Abstract: Wireless Sensor Networks (WSNs) are one of the fastest growing and emerging technologies in the field of Wireless networking today. WSNs have a vast amount of applications including environmental monitoring, military, ecology, agriculture, inventory control, robotics and health care. This paper focuses on monitoring and protection of oil and gas operations using WSNs that are optimized to decrease installation, and maintenance cost, energy requirements, increase reliability and improve communication efficiency. In addition, simulation experiments using the proposed model are presented. Such models could provide new tools for research in predictive maintenance and condition-based monitoring of factory machinery in general and for open architecture machining systems in particular. Wireless sensing no longer needs to be relegated to locations where access is difficult or where cabling is not practical. Wireless condition monitoring systems can be cost effectively implemented in extensive applications that were historically handled by running routes with data collectors. The result would be a lower cost program with more frequent data collection, increased safety, and lower spare parts inventories. Facilities would be able to run leaner because they will have more confidence in their ability to avoid downtime
An Efficient Method for Content Aware Image Resizing Using PSC
K. Thilagam,Dr. S. Karthikeyan
International Journal of Computer Technology and Applications , 2011,
Abstract: Digital image processing is the most common and versatile method of processing image data and has got wide applications. With the invention of many display devices of varying resolutions (Mobile display, PDA etc.), it became essential to resize the images to suit the target devices on which it is displayed. It include content unaware methods (Cropping, Scaling, Warping etc.) and also content aware methods like Seam carving which has gained popularity lately. Seam Carving uses a simple image operator called seam. Seam is an optimal 8-connected path of pixels on a single image from top to bottom, or left to right, where optimality is defined by an image energy function. By repeatedly carving out or inserting seams we can change the aspect ratio of an image or retarget the image to a new size. This approach claims that the seams must be continuous and monotonical. Continuous seams some times include pixels on the object of interest thereby resizing it (or even distorting it). To overcome the problem an efficient new approach using PSC (piecewise seam carving) is proposed which divides the image into several segments and seam carves each of it individually. It preserves objects of interest by avoiding carving in the segments containing them. This method allows the user to interactively define number of seams in each segment thereby resizing each segment to different ratio. The proposed method works fine even in images where the objects of interest are scattered over the image
Inclusion of Children with Hearing Impairment in Schools: A Survey on Teachers’ Attitudes
Dr. Santhi S Prakash
Disability, CBR & Inclusive Development , 2012, DOI: 10.5463/dcid.v23i3.117
Abstract: Purpose: Inclusion of children with disabilities in mainstream classrooms has become the focus of extensive research in education. It has both academic and social benefits for all students, such as providing opportunities for communication and social interaction. The evaluation of teachers’ attitudes towards inclusion appears to be a good method to determine the success of the programme. Although this has been widely researched in many countries, the available evidence is not consistent. This study was undertaken in the state of Andhra Pradesh in India, to measure and compare teachers’ attitudes towards the inclusion of children with hearing impairment in schools. Method: A questionnaire developed by Giles and Tanner (1995) measuring three domains - (1) effective strategies for meeting the needs of all students, (2) the support for educational change in their district, and (3) inclusive education - was modified in keeping with cultural and geographical variations and used as the test tool. A hundred teachers of various Government and non-Government schools in 2 districts of Andhra Pradesh, India, participated in the study. Results: Higher scores on domain 1 indicate that teachers feel effective strategies to benefit students with disabilities should be implemented in schools. The results also indicate that most teachers are agreeable to the inclusion of students with disabilities in their classrooms. Significant difference in attitudes was observed, based on the teachers’ qualifications, teaching experience, gender, level of teaching and management. Conclusion: The study concludes that there is a need for intervention to foster more positive attitudes among teachers, if the implementation of inclusive education is to succeed. It also has implications for the framing of laws and policies for children with hearing impairments. doi: 10.5463/dcid.v23i3.117
An Analysis Of Hybrid Techniques Of Seam Carving
Ms. K. Thilagam,,Dr. S. Karthikeyan
International Journal on Computer Science and Engineering , 2011,
Abstract: Diversified display devices and advancement in image processing techniques have increased the need for content aware resizing of images to fit into display devices of varying resolutions. Traditionalresizing methods scaling, cropping, warping are all content unaware methods. Seam Carving has gained popularity in this scenario but it is not without any setbacks. Instead of searching for a single best operator a combination of multiple operators are proposed to benefit from each of these techniques. In this paper we survey such techniques combined with seam carving, which we term Hybrid techniques. We also analyze their efficiencies based on parameters such as content preservation, global visual impacts and computational complexities.
Power Aware Scheduling for Resource Constrained Distributed Real-Time Systems
Santhi Baskaran,P. Thambidurai
International Journal on Computer Science and Engineering , 2010,
Abstract: Power management has become popular in mobile computing as well as in server farms. Although a lot of work has been done to manage the energy consumption on uniprocessor real-time systems, there is less work done on their multicomputer counterparts. For a set of real-time tasks with precedence and resource constraints executing on a distributed system, we propose a dynamic slack management technique for feedback control scheduling (FCS) algorithm known as modifiedFCS algorithm. This algorithm schedules dependant periodic real-time task sets by effectively managing exclusive access resources with strict timing constraints along with energy efficiency. Simulation results show that, in comparison to commonly used greedy technique, the proposed technique achieves 28 percent less power consumption when validated with random task graphs.
Dynamic Scheduling of Skippable Periodic Tasks With Energy Efficiency In Weakly Hard Real-Time System
Santhi Baskaran,P. Thambidurai
International Journal of Computer Science & Information Technology , 2010,
Abstract: Energy consumption is a critical design issue in real-time systems, especially in battery- operated systems. Maintaining high performance, while extending the battery life between charges is an interesting challenge for system designers. Dynamic Voltage Scaling (DVS) allows a processor to dynamically change speed and voltage at run time, thereby saving energy by spreading run cycles into idle time.Knowing when to use full power and when not, requires the cooperation of the operating system scheduler. Usually, higher processor voltage and frequency leads to higher system throughput whileenergy reduction can be obtained using lower voltage and frequency. Instead of lowering processorvoltage and frequency as much as possible, energy efficient real-time scheduling adjusts voltage andfrequency according to some optimization criteria, such as low energy consumption or high throughput,while it meets the timing constraints of the real-time tasks. As the quantity and functional complexity ofbattery powered portable devices continues to raise, energy efficient design of such devices has becomeincreasingly important. Many real-time scheduling algorithms have been developed recently to reduceenergy consumption in the portable devices that use DVS capable processors. Extensive power awarescheduling techniques have been published for energy reduction, but most of them have been focusedsolely on reducing the processor energy consumption. While the processor is one of the major powerhungry units in the system, other peripherals such as network interface card, memory banks, disks alsoconsume significant amount of power. Dynamic Power Down (DPD) technique is used to reduce energyconsumption by shutting down the processing unit and peripheral devices, when the system is idle. Threealgorithms namely Red Tasks Only (RTO), Blue When Possible (BWP) and Red as Late as Possible (RLP)are proposed in the literature to schedule the real-time tasks in Weakly-hard real-time systems. Thispaper proposes optimal slack management algorithms to make the above existing weakly hard real-timescheduling algorithms energy efficient using DVS and DPD techniques.
Energy Efficient Real-Time Scheduling in Distributed Systems
Santhi Baskaran,P. Thambidurai
International Journal of Computer Science Issues , 2010,
Abstract: Battery powered real-time systems have been widely used in many applications. As the quantity and the functional complexity of battery powered devices continue to increase, energy efficient design of such devices has become important. Also these real-time systems have to concurrently perform a multitude of complex tasks with strict time constraints. Thus, minimizing power consumption and extending battery life while guaranteeing the timing constraints has become a critical aspect in designing such systems. Moreover, energy consumption is also a critical issue in parallel and distributed systems. We present novel algorithms for energy efficient scheduling of Directed Acyclic Graph (DAG) based applications on Dynamic Voltage Scaling (DVS) enabled systems. Experimental results show that our proposed algorithms give better results than the existing algorithms.
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