Security of Electronic Patient Record using Imperceptible DCT-SVD based Audio Watermarking Technique

Abstract—A robust and highly imperceptible audio watermarkingtechnique is presented to secure the electronic patientrecord of Parkinson’s Disease (PD) affected patient. The proposedDCT-SVD based watermarking technique introduces minimalchanges in speech such that the accuracy in classification of PDaffected person’s speech and healthy person’s speech is retained.To achieve high imperceptibility the voiced part of the speech isconsidered for embedding the watermark. It is shown that theproposed watermarking technique is robust to common signalprocessing attacks. The practicability of the proposed technique istested: by creating an android application to record & watermarkthe speech signal. The classification of PD affected speech is doneusing Support Vector Machine (SVM) classifier in cloud server

Robust image-in-audio watermarking technique based on DCT-SVD transform

Abstract In this paper, a robust and highly imperceptible audio watermarking technique is presented based on discrete cosine transform (DCT) and singular value decomposition (SVD). The low-frequency components of the audio signal have been selectively embedded with watermark image data making the watermarked audio highly imperceptible and robust. The imperceptibility of proposed methods is evaluated by computing signal-to-noise ratio and by conducting subjective listening tests. The robustness of proposed technique is evaluated by computing bit error rate and average information loss in retrieved watermark image subjected to MP3 compression, AWGN, re-sampling, re-quantization, amplitude scaling, low-pass filtering, and high-pass filtering attacks with high data payload of 6 kbps. The information-theoretic approach is used to model the proposed watermarking technique as discrete memoryless channel. The Shannon’s entropy concept is used to highlight the robustness of proposed technique by computing the information loss in retrieved watermarked image

Journal of Civil Engineering Construction Technology Integrated hydraulic design approach for cost effective aqueduct trough

An aqueduct structure is a complex structure as compared to bridge, as it takes canal water across stream and canal traffic over the trough. The water-tightness and free expansions -contractions of trough, canal water load as well as traffic load on the trough involves complex load combinations, for which the superstructure and substructure of it is required to be planned and designed. The object of this research paper is to develop an optimized hydraulic design, by integration of various theories applicable, to provide cost effective aqueduct structure. This integrated hydraulic design for an aqueduct trough aims at minimization of water-way area of moving water, thus, minimizing mass of moving water per unit length of an aqueduct trough, which will result into lesser water load on aqueduct trough which ensures less quantity of construction materials and thus the aqueduct substructure and superstructure is economical. A case study of the executed project is also depicted which shows around 29% saving in concrete quantity by this method

Response spectrum analysis of a shear frame structure by using MATLAB

Abstract: A shear frame may be defined as a structure in which there is no rotation of a horizontal section at the level of the floor. In this respect the deflected frame will have many of the features of a cantilever beam that is deflected by shear forces, Hence the name Shear frame is given to those frames. To accomplish such deflection in frame, it is assume that: (1) the total mass of the structure is concentrated at the levels of the floors; (2) the beams on the floor are infinitely rigid as compared to the columns; and (3) the deformation of the structure is independent of the axial forces present in the columns. These assumptions transform the problem from a structure with an infinite number of degree of freedom (due to the distributed mass) to a structure which has only as many degrees as it has lumped masses at the floor levels. This paper is concerned with the response spectrum analysis of six stories shear frame with six degrees of freedom i.e. six horizontal displacement at the floor levels. From the analysis it concluded that, the first mode shape is most important one, because 86.96%, of Mass will respond to ground motion, when only 8.91 % of mass will respond in the second. Mode shape, also the only first-two mode shapes will be adequate to insure that more than 90 % of the mass will vibrate responding to ground motio

Investigation of structural and magnetic properties of thermal plasma-synthesized Fe_1-xNi_x alloy nanoparticles

Structural and magnetic properties of thermal plasma synthesized Fe1-xNix (x = 0.25, 0.33, 0.50, 0.67 and 0.75) alloy nanoparticles have been investigated using x-ray diffraction, neutron diffraction, transmission electron microscopy, scanning electron microscopy, dc magnetization, and Mössbauer spectroscopy techniques. High temperature gas phase nucleation and growth environment inside thermal plasma reactor facilitate stabilization of the disordered γ-FeNi (fcc) phase throughout (except for x = 0.25) the composition range under investigation. For x = 0.25 composition, a small (∼8%) amount of the disordered bcc phase along with prominent fcc (∼92%) phase is present, as inferred from the neutron diffraction data analysis. The spherical shaped nanoparticles possess high crystallinity. The average crystallite size (in 30–40 nm range) as well as particle size distribution show insignificant change as a function of composition. The observed value of the saturation magnetic moment for these nanoparticles are very close to that for their bulk counterparts, indicate highly crystalline nature of the thermal plasma synthesized nanoparticles. Room temperature Mössbauer spectroscopic data reveals that the alloy nanoparticles contain two different sites for Fe corresponding to high moment/low moment states. The neutron diffraction data indicates ferromagnetic ordering for all the compositions of the series. The average magnetic moments/f.u., derived from neutron diffraction and dc magnetization, are found to match with each other as well as with the values reported in the literature for bulk Fe1-xNix alloys. The highest ordered magnetic moment was found to be 1.4 μB per f.u. for Fe0.50Ni0.50 composition. Overall, thermal plasma based synthesis is found to be an excellent route to produce high-quality nanoparticles of the binary metallic alloys