In a world of interconnected computers and networks, security is a major challenge in relation to data exchange among them. The information security through encryption has been evolved to address different issues in such process. In this context the evolution and evaluation of new encryption system is inextricably linked to the process of realizing ever increasing network security needs. A continuous development of new encryption systems are necessitated with the advancement in security and efficiency needs. In the paper symmetric key cryptosystem based on randomized key block cipher a novel dynamic cryptographic key generation scheme is proposed. This paper proposes to evaluate the enduring capacity of this algorithm to various cryptanalytic attacks viz., Differential Cryptanalysis, Linear Cryptanalysis and Poly-alphabetic Nature Test. None of the traditional attacks are designed to decrypt this encryption algorithm as the use of key scheme is different in it and therefore robust to the conventional cryptanalytic attacks.

Keywords: ...

[1]. Aniket Kesharwani, Hemant Gupta. Survey on Data Hiding in Encrypted Images. International Research Journal of Engineering and Technology (IRJET). 2015; 2(3): 144 Ŕ 150.
[2]. Harshala B. Pethe, Dr. S. R. Pande. A Survey on Different Secret Key Cryptographic Algorithms. IBMRD's Journal of Management and Research. 2014; 3(1): 142 Ŕ 150.
[3]. Mihir Bellare, Shafi Goldwasser, Daniele Micciancio. Pseudo-Random Number Generation within Cryptographic Algorithms: the DSS Case, Advances in Cryptology - Crypto 97 Proceedings. Lecture Notes in Computer Science. Springer Verlag. 1997;1294.
[4]. Makoto Matsumoto, Takuji Nishimura. Dynamic Creation of Pseudorandom Number Generators. Monte Carlo and Quasi-Monte Carlo Methods. Springer. 2009; 589-602.
[5]. YekiniN. Asafe, Aigbokhan E. Edwin, Okiki F. Mercy. Cryptography System for Online CommunicationUsing polyalphabetic Substitution Method. Int. J. Advanced Networking and Applications. 2014; 6(1): 2151-2157..

Photolminescence properties of single crystal was analysed and its applications and uses were discussed. Electroluminescence by a voltage applied to the luminescent substance. Triboluminescence by utilization of mechanical energy such as girding.Chemiluminescence by utilization of the energy of a chemical reaction. The lowest energy MLCT transitions are tuned from 400 nm to 500 nm by tuning the energy of the HOMO levels. These complexex show emission maxima in te blue, green and yellow region of the visible spectrum and exhibit unprecedented phosphorescence quantum yields.

Keywords: PL, UV-Vis studies, Raman studies and applications

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[2]. Becker, R.S. and Becker, R.S., 1969. Theory and interpretation of fluorescence and phosphorescence (Vol. 85). New York: Wiley Interscience.
[3]. Schulman, S.G., 2017. Fluorescence and phosphorescence spectroscopy: physicochemical principles and practice. Elsevier.
[4]. Tsuboyama, Akira, Hironobu Iwawaki, Manabu Furugori, Taihei Mukaide, Jun Kamatani, Satoshi Igawa, Takashi Moriyama et al. "Homoleptic cyclometalated iridium complexes with highly efficient red phosphorescence and application to organic light-emitting diode." Journal of the American Chemical Society125, no. 42 (2003): 12971-12979.
[5]. Tunell, I., Rinkevicius, Z., Vahtras, O., Sałek, P., Helgaker, T. and Ågren, H., 2003. Density functional theory of nonlinear triplet response properties with applications to phosphorescence. The Journal of chemical physics, 119(21), pp.11024-11034..

Floods become frequently occurring phenomena in the state of Karnataka, during the year 2009 there were torrential rainfalls over a short period of time due to the low atmospheric pressure in Bay of Bengal resulting vast areas flooded. The inundated extent analysis is of prime importance for mitigation of floods in this area.The traditional optical satellite images are not feasible for mapping the flooded area accurately due tobad weather condition, in this relevance the microwave remote sensing data offersanalternative solution to such limitations on account of its capability of penetration through clouds. In the present study Synthetic Aperture Radar (SAR) data of Radarsat-2, Quad polarimetric beam mode data has been used for mapping the extent of flood inundation. The processing of backscatter image is carried out using NEST application andthreshold technique has applied to classify the........

Keywords: Floods, Inundation, RADARSAT data, Backscatter Coefficient, Threshold, Visual Image Interpretation and GIS.

[1]. Bhat C.M, Rao G.S, Manjushree P, Bhanumurthyet V, (2010). Space Based Disaster Management of 2008 Kosi Floods, North Bihar, India. J. Indian Soc. Remote Sens. 38, pp: 99-108
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Fire in buildings is nearly always man- made, i.e. resulting from negligence or error, which can cause immense damage in terms of lives and property. Concrete is widely used as a primary structural material in construction due to numerous advantages, such as strength, durability, ease of fabrication, but one of the most important advantages of concrete over other buildings materials (steel, wood,) is its fire resistive properties. Fire resistance can be defined as the ability of concrete to enable the structural elements to withstand fire or to give protection from it [1]. This includes the competence to resist a fire or to continue to perform a given structural function, or both. Concrete.............

Keywords: .........

[1]. Malhotra, H.L. (1956) "The effect of high-temperature on compressive strength ", magazine of concrete research, 8(3) pp.85 – 94.
[2]. Surendra P. Shah, Pengkun Hon, and Xin Cheng " Durability of Cement-Based Materials and Nano-particles: A Review" Springer International Publishing Switzerland 2015 .K. Sobolev, S.P. Shah (eds.). Nanotechnology in Construction, DOI 10.1007/978-3-319-17088-6_2.
[3]. W. Sha and B. Pereira, "Differential scanning calorimetry study of ordinary Portland cement paste containing metakaolin and theoretical approach of metakaolin activity.," Cement Concrete Compos. 23 (2001), pp. 455–461.
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Much research on electric-powered wheelchairs (EPWs) has been carried out in recent years to mitigate the problems of disabled people. We have come a long way since the basic manually-operated wheelchairs, and the progress made has considerably improved freedom of mobility of the disabled. This study proposes an autonomous EPW (electric powered wheelchair) having smart driving features for the visually impaired. Our initial prototype, the InstitutoPolitécnico de Leiria/Instituto de Telecomunicações (IPL/IT) wheelchair had voice, eye-movement, and GPS (Global Positioning System) control. Our latest version which we propose in this paper includes an Indoor locating system (IPS) using 3D printed directional Wi Fi antennas that allow a precise positioning of the wheelchair in an indoor scenario and a novel smart 3D headphone that can generate acoustic signals in proportion to a 3D object, which will allow the visually impaired to identify the size and shape of obstacles, and thus, avoid them. The IPL/IT EPW system has been designed with low-cost IoT (Internet of Things) technology in mind..

Keywords: indoor positioning system, autonomous wheelchair, Internet of Things (IoT), telemedicine, tele-assistance, visually-impaired, seeing with 3D sounds..

[1]. World Health Organization [WHO]. (2017) Guidelines on the provision of manual wheelchairs in less-resourced settings. Available from: http://www.who.int/disabilities/publications/technology/wheelchairguidelines/en/ [Accessed 14th November 2017].
[2]. N. Thapar, G. Warner, M.L. Drainoni, S.R. Williams, H. Ditchfield, J. Wierbicky, and S. Nesathurai, "A pilot study of functional access to public buildings and facilities for persons with impairments,"Disabil. Rehabil, 26(5), 2004, 280-289.
[3]. R. C. Simpson, "How many people would benefit from a smart wheelchair?," J. Rehabil. Res. Dev., 45(1), 2008, 53–72.
[4]. M.H. Alsibai and S.A. Manap, "A Study on Smart Wheelchair Systems," Int. J. Eng. Technol. Sci., December 2015.
[5]. R. C. Simpson, "Smart wheelchairs: A literature review," J. Rehabil. Res. Dev., 42(4), 2005, 423.

Earthquakes are one of the most devastating and frightening natural disasters that can be experienced. After such occurrences, it may be vital to identify objects or (living) beings within buildings that have collapsed. In this context the usage of scanning techniques employing Wi-Fi allow an innovative approach to facilitate referred identification. By using wireless technology, this work presents a proposal for the detection and identification of object contours or silhouettes through walls. This goal was achieved by reading the radio signal strength (RSS) variations with an array of affordable IoT (Internet of Things) Wi-Fi antennas.

Keywords: Antenna, Emitter, Path loss, Radio Signal Strength (RSS), and Wi-Fi.

[1]. P. M. Holl, F. Reinhard, "Holography of Wi-fi Radiation", Physical Review Letters, PRL 118, 183901, May 2017.
[2]. "Through-wall radar PRISM200 - Through-wall radar - CAMBRIDGE RADAR-TECH INTERNATIONAL LIMITED", http://cambrate.com/product.php?id=16.
[3]. P. Kolios, "Wireless Environment and Mobility Issues", Dept. of Computer Science, University of Cyprus.
[4]. X. Jiuqiang, W. Liu, F. Lang, Y.Zhang, C. Wang. "Distance measurement model based on RSSI in WSN", https://www.researchgate.net/publication/220279158_Distance_measurement_model_based_on_RSSI_inWSN, 2010.
[5]. F. Shang, W. Su, Q. Wang, H. Gao, e Q. Fu, "A Location Estimation Algorithm Based on RSSI Vector Similarity Degree", International Journal of Distributed Sensor Networks, vol. 2014, pp. 1–22, Ago..

In this work, influence of dysprosium (Dy) doping on the structural and magnetic properties of Yttrium Iron Garnet (YIG) nanoparticles has been studied and results are presented. Dy doped YIG nanoparticles (Y3-xDyxFe5O12, x = 0.2) are synthesized by standard sol-gel auto combustion method using citric acid as a fuel. Pure and Dy doped YIG nanoparticles were structurally characterized by X-ray diffraction technique at room temperature. X-ray analysis proves the formation of single phase cubic garnet structure. The lattice constant found to be increasing after Dy doping. Using XRD data, X-ray density, unit cell volume and particle size were deduced and their variation with Dy doping is studied. The magnetic properties like saturation magnetization, coercivity etc were studied through hysteresis loop technique. It is observed that, the saturation magnetization decreases after Dy doping.

Keywords: Yttrium iron Garnet, Dy3+ doping, Sol-gel auto combustion, XRD

[1]. Mahour, L. N., Manjunatha, M., Choudhary, H. K., Kumar, R., Anupama, A. V., Damle, R., & Sahoo, B. (2019), Structural and magnetic properties of Al-doped yttrium iron garnet ceramics: 57Fe internal field NMR and Mössbauer spectroscopy study, Journal of Alloys and Compounds, 773, 612-622.
[2]. Leal, L. R. F., Guerra, Y., Padrón-Hernández, E., Rodrigues, A. R., Santos, F. E. P.,& Peña-Garcia, R. (2019). Structural and magnetic properties of ttrium iron garnet nanoparticles doped with copper obtained by sol gel method. Materials Letters, 236, 547-549
[3]. Perov, D. V., Rinkevich, A. B., Kuznetsov, E., & Pardavi-Horvath, M. (2018), Large variations of microwave transmission and reflection from a plate of yttrium-iron garnet, Materials Research Express.
[4]. Mihalceanu, L., Vasyuchka, V. I., Bozhko, D. A., Langner, T., Nechiporuk, A. Y., Romanyuk, V. F., & Serga, A. A. (2018), Temperature-dependent relaxation of dipole-exchange magnons in yttrium iron garnet films, Physical Review B, 97(21), 214405.
[5]. Mohaidat, Q. I., Lataifeh, M., Hamasha, K., Mahmood, S. H., Bsoul, I., & Awawdeh, M. (2018), The Structural and the Magnetic Properties of Aluminum Substituted Yttrium Iron Garnet, Materials Research, (AHEAD), 0-0..

Internet of Things (IoT) is a system of interrelated connected physical objects that are accessible through the internet. Internet of Things offers the most flexibility and convenience in our daily applications as the IoT devices can improve productivity, accuracy and financial benefit in addition to reduced human intrusion. Security, privacy and communication overhead Problems are also arising in IoT. To address this problem, many privacy-preserving data aggregation schemes have been proposed in the past years. Privacy-preserving data aggregation is one application in IoT. Privacy-preserving data aggregation is a main building block that can protect user's privacy. In this paper, we present an overview of privacy-preserving data aggregation scheme for IoT to preserve privacy and to reduce communication overhead. There are many Privacy-Preserving Data Aggregation (PPDA) approaches have been........

Keywords: Privacy, Internet of Things, Computing, Network, Sensor, Grouping, Security, Data Aggregation, Communication Overhead.

[1]. Atzori L, Iera A, Morabito G. "The Internet of Things: a survey", Compute Netw 2010; 54:2787-805.
[2]. Bista R, Jo K, Chang J. "A new approach to secure aggregation of private data in wireless sensor networks" in IEEE international conference on dependable, autonomic and secure computing; 2009. p. 394-9.
[3]. He W, Liu X, Nguyen H, Nahrstedt K, Abdelzaher T. "PDA: privacypreserving data aggregation in wireless sensor networks" in Proceedings of the INFOCOM; May 2007. p. 2045-53.
[4]. J. Gubbi, R. Buyya, S. Marusic, M. Palaniswami "Internet of Things (IoT): a vision, architectural elements, and future directions", Future GeneratComputSyst, 29 (7) (2013), pp. 1645-1660
[5]. Kumar V, Madria S. "PIP: privacy and integrity preserving data aggregation in wireless sensor networks" in IEEE 32nd international symposium on reliable distributed systems (SRDS); 2013. p. 10-9.

The recognition accuracy of unimodal biometric systems needs to fight with an assortment of issues, for example, foundation noise, noisy data, non-comprehensiveness, and parody assaults, intra-class varieties, between class likenesses or peculiarity, interoperability issues. This paper depicts another multimodal biometric framework that incorporates various characteristics of a person for recognition, which can reduce the issues looked by unimodal biometric framework while enhancing recognition execution. We have built up a multimodal biometric framework by consolidating iris, face and voice at match score level utilizing straightforward whole guideline. The match scores are standardized by min-max standardization. The personality built up by this framework is considerably more solid and exact than the individual biometric systems. Test assessments are performed on an open dataset showing the accuracy of the proposed framework. The adequacy of proposed framework in regards to FAR (False Accept Rate) and GAR (Genuine Accept Rate) is shown with the assistance of MUBI (Multimodal Biometrics Integration) programming..

Keywords: Multimodal Biometric System, Iris recognition, Face recognition, Voice recognition

[1]. C. Sanderson and K. K. Paliwal, Information Fusion and Person Verification Using Speech and Face, Information. Research Paper IDIAP-RR 02-33, IDIAP, September 2002.
[2]. A. Ross, K. Nandakumar, and A. K. Jain, Handbook of Multibiometrics, New York: Springer, 2006.
[3]. A. Ross and R. Govindarajan, Feature Level Fusion Using Hand and Face Biometrics, In Proceedings of SPIE Conference on Biometric Technology for Human Identification II, volume 5779, pages 196–204, Orlando, USA, March 2005.
[4]. A.K. Jain, A. Ross, Multibiometric systems, Communications of the ACM, Special Issue on Multimodal Interfaces, Vol. 47, January 2004, 34-40.
[5]. Gian Luca Marcialis and Fabio Roli, "Serial Fusion of Fingerprint and Face Matchers", M. Haindl, MCS 2007, LNCS volume 4472, pp. 151-160, © Springer-Verlag Berlin Heidelberg 2007..

Nowadays, Many citizens are looking for ways how to utilization present resources more effectively. In India, there is about 1-2 persons per car while the average car capacity is five people.Therefore, it is clear that carpooling has a huge efficiency potential in this matter. It is based on a shared use of personal cars. Carpooling saves a lot of time and fuel but most importantly, from the societal and environmental point of view, reducing air pollution. Carpooling consists of sharing individual car space among people with comparable trajectories. Carpooling has become an economy and stress-free system to transport around. In this paper, we present anoverview for a Cloud computing-based platform, meant to improve Sustainable Mobility. In particular, this discussion helps vehicle users in selecting a transport solution base to itsecological footprint, matching his/her needs, preferences, and actual location. This review work also shows rate of success for the carpooling system is highly dependent............

Keyword: Carpooling service, genetic algorithm, CLACSOON,Advanced intelligent carpool system

[1] . Agatz, N., Erera, A., Savelsbergh, M., & Wang, X. (2012).Optimization for dynamic ride-sharing: A review.European Journal of Operational Research, 223, 295–303.doi:10.1016/j.ejor.2012.05.028.
[2] . Agatz, N., Erera, A. L., Savelsbergh, M. W. P., & Wang, X.(2011). Dynamic ride-sharing: A simulation study inmetro Atlanta. Procedia-Social and Behavioral Sciences,17, 532–550. doi:10.1016/j.sbspro.2011.04.530.
[3] . Bruglieri, M., Ciccarelli, D., Colorni, A., &Lu_e, A. (2011).PoliUniPool: A carpooling system for universities.Procedia-Social and Behavioral Sciences, 20, 558–567.doi:10.1016/j.sbspro.2011.08.062Calvo, R., Wolfler, F., de Luigi,
[4] . Chou, S.-K., Jiau, M.-K., & Huang, S.-C. (2016). Stochasticset-based particle swarm optimization based on localexploration for solving the carpool service problem. IEEETransactions on Cybernetics, 46, 1771–1783. doi:10.1109/TCYB.2016.2522471
[5] . Guo, Y., Goncalves, G., & Hsu, T. (2011). A guided geneticalgorithm for solving the long-term car-pooling problem.Paper presented at the computational intelligence in productionand logistics systems (CIPLS), 2011. IEEEWorkshop, Paris, France.

The objective of this paper is to investigate the blind channel equalization using least mean square (LMS) algorithm and its variants. Digital transmission systems impose the application of channel equalizers with short training time, high tracking rate, high data rate and quality. Thus, it is necessary to define new and robust algorithms to equalize channels and reduce noise in communications. In this paper LMS algorithm and its variants normalized LMS (NLMS) and sign LMS (SLMS) algorithms are used for implementation of blind channel equalization. The performance of each algorithm is studied separately and results are compared. It is found that the convergence rate and error performance of NLMS and SLMS equalizers are better than LMS equalizer..

Keyword: Blind channel equalization, adaptive signal processing algorithm, constellation, convergence

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Least square method is widely used for optimization of both linear and nonlinear problems with high accuracies. In this study modified least square method is used for the analysis of porous fin in the presence of uniform magnetic field and the obtained result is compared with the Least Square Method.

Keyword: Least Square Method modified least square method, uniform magnetic field, porous fin

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