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A Suvey Paper on Infomation Hiding on WebPages
Chaitali Patel,Nimisha Patel 사단법인 인문사회과학기술융합학회 2015 예술인문사회융합멀티미디어논문지 Vol.5 No.5
The growth of internet has increased the demand for techniques that can ensure information security on web page. Cryptography, Steganography and Watermarking are three basic methods which will help us to secure data from unauthorized access. Steganography is one of the good techniques to hide message from unauthorized audience. It is used to hide a secret message inside various kinds of files like Audio, Video, Images, and even text document. The benefits of the steganography techniques over the cryptography are that no one except sender and intended user can see the existence of message. This survey paper concentrates on the steganography techniques that used web document hides the data. In this paper, We survey different steganography techniques that can be applied on web pages to hide the data and our proposed techniques more bits hide in the HTML file with a good imperceplibity.
Quantitative Analysis of Microstructure Properties and their Influence on Macroscale Response
J. David Frost,Nimisha Roy,Chien-Chang Chen,박진영,Deh-Jeng Jang,Ye Lu,Jie Cao 대한토목학회 2019 KSCE Journal of Civil Engineering Vol.23 No.9
The shear behavior of soils is typically related to the state of the soil in terms of the initial global void ratio and effective confining stress. However, laboratory tests on reconstituted sand specimens have shown that the shear behavior is also dependent upon the specimen preparation method. This paper describes the findings of a series of studies, which quantitatively evaluated the differences in the inherent microstructure of dilatant sand specimens prepared by air pluviation, moist tamping and water deposition. Quantitative measures such as local void ratio distribution, local void ratio distribution entropy and particle orientation entropy were found to be dependent on the preparation method. Microstructure evolution in the sand specimens during triaxial compression testing was also investigated. Measuring global properties of the specimens was shown to mask the complex and evolving internal conditions during shear. The global response was found to be strongly dependent on the shear induced microstructure which in turn was directly influenced by the preparation method dependent inherent microstructure.
Shuai Song,Xiao-Na Song,Nimisha Pathak,Ines Tejado Balsera 제어·로봇·시스템학회 2017 International Journal of Control, Automation, and Vol.15 No.4
In this work, we combine the active and adaptive control theories, and propose a novel synchronizationscheme for a class of fractional-order chaotic systems with different structure and different order. Based on the newversion of fractional-order Lyapunov stability theory, we design the adaptive controllers and updating laws of differentswitching. We use the fractional-order Lorenz chaotic system and the fractional-order Chen chaotic system asexamples to analyze the multi-switching synchronization process for fractional-order chaotic systems with differentstructures and different orders. Finally, numerical simulations are also given to illustrate the effectiveness and validationof the proposed method, and the model uncertainties and external disturbances are added to the consideredsystems to verify the robustness of the proposed controllers.