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Volume-3 Issue-9

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Volume-3 Issue-9, August 2015, ISSN: 2319–6386 (Online)
Published By: Blue Eyes Intelligence Engineering & Sciences Publication Pvt. Ltd. 

Page No.



Yogita D. Bhole, N. N. Thune

Paper Title:

Review on Designing of Multi Bit Flip-Flop to Achieve Reduced Area in VLSI Design

Abstract: In this paper, we have designed Multi-bit Flip-flop (MBFF) and made performance comparison over the Single-bit Flip-flop (SBFF) We can increase Flip flop performance by merging clock pulse. But increase in clock pulse means it will increases the area. So the Multi-bit Flip-flop is designed by single clock pulse and achieves same functionality like two single-bit Flip-flop so it will reduce the area. The basic memory elements of designer considerations are Latch and flip flop. Optimizations in VLSI have been done on three factors: Area, Power and Timing (Speed). Area optimization means reducing the space of logic which occupy on the die. Memory elements play a vital role on Digital World but these elements consumes more area. Thus these elements can be designed using Multi-bit flip flop to reduce area.

Flip-flop, Latch, Clock buffer, Clock network, Gate delay, Single bit flip flop, Multi bit flip flop.


1.        Wen-Ben Jone and Chen-Liang   Fang, Timing Optimization   by Gate Resizing and Critical Path Identification, Design Automation Conference, 1993
2.        Zhi-Wei Chen and Jin-Tai Yan, Routability-Driven Flip-Flop Merging Process for Clock Power Reduction, Computer Design (ICCD) IEEE International Conference, 2010

3.        Jin-Tai Yan and Zhi-Wei Chen, Construction of Constrained Multi -Bit Flip -Flops for Clock Power Reduction, Green Circuits and Systems (ICGCS) International Conference, 2010

4.        Chih -Cheng Hsu, Yao-Tsung Chang and Mark Po-Hung Lin, Crosstalk-Aware Power Optimization with Multi-Bit Flip-Flops, 17th Asia and South Pacific Design Automation Conference, 2012

5.        Mark Po-Hung Lin, Chih-Cheng Hsu, and Yao-Tsung Chang, Recent Research in Clock Power Saving with Multi-Bit Flip-Flops, Midwest Symposium on Circuits and Systems Conference IEEE, 2011

6.        Ya-Ting Shyu et. Al., Effective and Efficient Approach for Power Reduction by Using Multi-Bit Flip-Flops, IEEE transactions on very large scale integration systems, 2012

7.        Rostislav Dobkin, Ran Ginosar, and Avionam Kolody, Fast Asynchronous Shift Register for Bit-Serial Communication,12th IEEE international symposium on asynchronous circuits and systems ,2006

8.        LI Xia Yu, JIA Song, LIU LiMin, WANG Yuan and ZHANG Gang Gang , Design of Novel, Semi-transparent flip-flops for high speed and low power application, science china Press and Springer-verlag Berlin Heidelberg ,2012

9.        Vladimir Stojanovic and Vojin G. Oklobdzija ,Comparative Analysis of Master-Slave Latches and Flip-Flops for High-Performance and Low-Power Systems, IEEE journal of solid-state circuits, vol 34,no-4,april 1999





Seepelli Praveen, Samalla Krishna, Katkuri Laxmi Chaitanya

Paper Title:

Single Phase Single-Stage Transformer Less Renewable Energy System for Micro Grid Applications

Abstract: In low power renewable systems, a single phase grid-connected converter is usually adopted. This paper deals with a single stage transformer less single phase converter for micro grid applications with PV system is proposed. By using this system the maximum power tracing is possible from PV array to the micro grid. The maximum power point tracing is maintained with a logical controller. A proportional controller is used to control the current injected into the grid a single-phase, single-stage current source inverter based photovoltaic system for grid connection. A double-tuned parallel resonant circuit is designed to attenuate harmonics at the inverter dc side. It helps to improve the power quality and system efficiency. A modified carrier based modulation technique for the current source inverter is studied to magnetize the dc-link inductor and to control the switching pattern for the single phase grid-connected CSI. The operation of Single Phase Transformer-less grid connected PV system is verified by the Simulation and experimental results show the effectiveness of the proposed solution.

Distributed power Generation, DC- AC power conversion, current source inverter grid- connected converters, Single - phase systems, current source converters, Maximum power point tracing (MPT).


1.        F.-P. Zeng, G.-H. Tan, J.-Z. Wang, and Y.-C. Ji, “Novel single-phase five level voltage-source inverter for the shunt active power filter,” Power Electron., vol. 3, no. 4, pp. 480–489, Jul. 2010.
2.        R. Gonzalez, E. Gubia, J. Lopez, and L. Marroyo, “Transformerless single-phase multilevel-based photovoltaic inverter,” IEEE Trans. Ind. Electron., vol. 55, no. 7, pp. 2694–2702, Jul. 2008.

3.        D. Barater, G. Buticchi, A. S. Crinto, G. Franceschini, and E. Lorenzani, “A new proposal for ground leakage current reduction in transformerless grid-connected converters for photovoltaic plants,” in Proc. 35th IEEEIECON, Nov. 2009, pp. 4531–4536.

4.        G. Buticchi, G. Franceschini, E. Lorenzani, D. Barater, and A. Fratta, “A novel compensation strategy of actual commutations for ground leakage current reduction in PV transformerless converters,” in Proc. 36th IEEE IECON, Nov. 2010, pp. 3179–3184.

5.        Q. Mei, M. Shan, L. Liu, and J. Guerrero, “A novel improved variable step-size incremental-resistance MPPT method for PV systems,” IEEE Trans. Ind. Electron., vol. 58, no. 6, pp. 2427–2434, Jun. 2011.

6.        R. Kadri, J.-P. Gaubert, and G. Champenois, “An improved maximum

7.        Power point tracking for photovoltaic grid-connected inverter based on voltage-oriented control,” IEEE Trans. Ind. Electron., vol. 58, no. 1, pp. 66–75, Jan. 2011.

8.        IEEE Recommended Practices and Requirements for Harmonic Controlin Electrical Power Systems, IEEE Std 519-1992, 1993

9.        D. Infield, P. Onions, A. Simmons, and G. Smith, “Power quality from multiple grid-connected single-phase inverters,” IEEE Trans. Power Del., vol. 19, no. 4, pp. 1983–1989, Oct. 2004.

10.     R. Gonzalez, E. Gubia, J. Lopez, and L. Marroyo, “Transformerless single-phase multilevel-based photovoltaic inverter,” IEEE Trans. Ind.Electron., vol. 55, no. 7, pp. 2694–2702, Jul. 2008.






Roberto Carluccio, Alfio Messina

Paper Title:

MarCONI - One-Hand Controller for Unmanned Aerial Vehicle

Abstract: Here authors present MarCONI (Multi Channel One haNd Interface), a system born to control remotely piloted aircrafts (RPAs), in particular multi-rotors, by means of new generation peripherals. Among those, used in personal computing environment, a generation of 6 degree-of-freedom (DOF) advanced controllers is the SpaceMouse family by 3Dconnexion. MarCONI is a hardware-software system, acting as a bridge between the USB peripheral and the UAV's radio-controller. A shaping block has been added to the system in order to process raw data flow generated by the SpaceMouse. This step allows the user to adapt the controller feedback to the specific vehicle features and response. Shaping parameters are fully customizable by a specific Web GUI, accessible through a Wi-Fi connection, making possible the setup tuning by means of mobile devices, such as smartphones or laptops. A side benefit of this system is the possibility to pilot UAVs using one hand only, with no restriction.

3D USB HID, Arduino, Drone, FPV, Multi-rotor, RPA, SpaceMouse, SpaceNavigator, UAV.


1.        A. Puttock, A. M. Cunliffe, K. Anderson, R. E. Brazier, "Aerial photography collected with a multirotor drone reveals impact of eurasian beaver reintroduction on ecosystem structure", in Journal of Unmanned Vehicle Systems, 2015, doi:10.1139/juvs-2015-0005.
2.        S. Ullman, "The interpretation of structure from motion", in Proc. R. Soc. London, Ser. B 203, 1979, pp. 405-426, doi:10.1098/rspb.1979.0006.

3.        S. Seitz, B. Curless, J. Diebel, D. Scharstein, R. Szeliski, "A comparison and evaluation of multi-view stereo reconstruction algorithms", in Computer Vision and Pattern Recognition, IEEE Computer Society Conference, 2006, pp. 519 - 528. doi:10.1109/CVPR.2006.19.

4.        J. Rudolf, K. Lehmann, K. Z. Smithson, T. Prinz, "Making the invisible visible: Using uas-based high-resolution color-infrared imagery to identify buried medieval monastery walls", in Journal of Unmanned Vehicle Systems, 2014, doi:10.1139/juvs-2014-0017.

5.        N. Ratcliffe, D. Guihen, J. Robst, S. Crofts, A. Stanworth, P. Enderlein, "A protocol for the aerial survey of penguin colonies using uavs", in Journal of Unmanned Vehicle Systems, 2015, doi:10.1139/juvs-2015-0006.

6.        G. Vásárhelyi, C. Virágh, G. Somorjai, N. Tarcai, T. Szörényi, T. Nepusz, T. Vicsek, in "Outdoor flocking and formation flight with autonomous aerial robots", in IEEE IROS Conference, 2014.

7.        D. Habib, H. Jamal, S. A. Khan, "Employing multiple unmanned aerial vehicles for co-operative path planning", in Int J Adv Robot Syst., 2013, doi:10.5772/56286.

8.        C. Zych, A. Wrońska-Zych, J. Dudczyk, A. Kawalec, "A correction in feedback loop applied to two-axis gimbal stabilization", in Bulletin of the Polish Academy of Sciences Technical Sciences, 2015, doi:10.1515/bpasts-2015-0025.

9.        3Dconnexion SpaceMouse Family Overview, url: http://www.3dconnexion.co.uk/products/spacemouse.html.

10.     T. A. Group, "The economic payback of 3d mice for cad design engineers", Tech. rep., 2008. url: http://www.3dconnexion.com/fileadmin/user_upload/manuals_docs/english_intl/3dx_whitepaper_cadpayback_en_intl.pdf

11.     Arduino Yún Product Overview, url: http://www.arduino.cc/en/Main/ArduinoBoardYun.

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14.     M. Martins, A. Cunha, I. Oliveira, L. Morgado, "Usability test of 3dconnexion 3d mice versus keyboard + mouse in second life undertaken by people with motor disabilities due to medullary lesions", in Universal Access in the Information Society 14, 1, 2015, 5-16. doi:10.1007/s10209-013-0329-9.






Mohamed Said Albahri

Paper Title:

ECC Implementation on Wireless Sensor Nodes

Abstract: This paper is concerned with the implementation and performance evaluation of Elliptic Curve Cryptography in constrained devices such as wireless sensor nodes. Experimental evaluation for Elliptic Curve Digital Signature (ECDSA) on an 8-bit (Arduino mega2560) and a 32-bit ( Arduino Due) processor using the Relic-toolkit has been carried out and comparative implementation results are given. It is shown that by adopting appropriate optimizations an ECDSA can be achieved in 83ms.

WSN, ECC, Software Implementation, Relic toolkits.


1.        D. F. A. Gouv and C. P. L., “Relic is an efficient library for cryptography.” [Online]. Available: ttp://code.google.com/p/relic-toolkit/
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3.        Liu and P. Ning, “Tinyecc: A configurable library for elliptic curve cryptography in wireless sensor networks,” in Information Processing in Sensor Networks, 2008. IPSN’08. International Conference on. IEEE, Conference Proceedings, pp. 245–256.

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8.        M. Sethi, J. Arkko, and A. Keranen, “End-to-end security for sleepy smart object networks,” in Local Computer Networks Workshops (LCN Workshops), 2012 IEEE 37th Conference on, Conference Proceedings, pp. 964–972.

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Nan Wang

Paper Title:

A New Boosting Algorithm Based on Dual Averaging Scheme

Abstract: The fields of machine learning and mathematical optimization increasingly intertwined. The special topic on supervised learning and convex optimization examines this interplay. The training part of most supervised learning algorithms can usually be reduced to an optimization problem that minimizes a loss between model predictions and training data. While most optimization techniques focus on accuracy and speed of convergence, the qualities of good optimization algorithm from the machine learning perspective can be quite different since machine learning is more than fitting the data. Better optimization algorithms that minimize the training loss can possibly give very poor generalization performance. In this paper, we examine a particular kind of machine learning algorithm, boosting, whose training process can be viewed as functional coordinate descent on the exponential loss. We study the relation between optimization techniques and machine learning by implementing a new boosting algorithm. DABoost, based on dual-averaging scheme and study its generalization performance. We show that DABoost, although slower in reducing the training error, in general enjoys a better generalization error than AdaBoost.

Machine Learning, Optimization, Boosting, AdaBoost, computational learning theory.


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H. El-Didamony, S. Abd El-Aleem Mohamed, H. Gouda

Paper Title:

Durability Performance of Blended Cements Incorporating Egyptian SRC and GBFS in Aggressive Water

Abstract: The durability of concrete has been a major concern of civil engineering professionals over the last few decades. Durability is the capacity of concrete to resist deterioration caused by aggressive environments. An experimental investigation was carried out to evaluate the durability properties of blended cements prepared from substitution of SRC with different percentages of GGBFS up to 75 mass, %. The ingredients of each dry mix were homogenized, and then hydrated with the water of standard consistency. The specimens were cured under tap water for 28 days (zero time), then immersed in marine environment up to 12 months. The hydration products were analyzed using DTA, IR and XRD techniques. The durability properties were determined by measuring: free lime, combined water, bulk density, compressive strength, total sulfate and total chloride contents for each mix at different immersing ages. The results revealed that, GGBFS decreases the accessibility of SO42- and Cl- to penetrate into the pore system. Hence the total sulfate and total chloride contents decrease. Therefore, the durability performance of SRC is greatly enhanced by the use of high GGBFS contents. The composite cements containing 45-55 mass, % of GGBFS are comparable to or outperform SRC up to one year of immersion in aggressive water.

Blended Cements; GGBFS; SRC; Durability; Bulk density and Compressive strength.


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3.        Elahi A., Basheer P.A.M., Nanukuttan S.V. and Khan Q.U.Z, "Mechanical and durability properties of high performance concretes containing supplementary cementitious materials", Construc. Build. Mater. 24; (2010), pp. 292–299.

4.        Ahmed Hadjsadok, Said Kenai, Luc Courard, Frédéric Michel, Jamal Khatib "Durability of mortar and concretes containing slag with low hydraulic activity", Cement & Concrete Composites 34 (2012), pp. 671–677.

5.        Mehta P.K. and Monteiro P.J.M., "Concrete: microstructure properties and materials",   3rd  Ed. New York: McGraw-Hill Companies Inc.; (2006), p. 659.

6.        Monteiro P.J.M. and Kurtis K.E., "Time to failure for concrete exposed to severe sulfate attack", Cem. Concr. Res.33; (2003), pp. 987–93.

7.        Abd-El-Eziz M. A. and Heikal M., "Hydration characteristics and durability of cements containing fly ash and limestone subjected to Caron’s Lake Water", Adv. Cem. Res., 21(3); (2009), pp. 91-9.

8.        El-Didamony H., Abd-El. Eziz M. and Abd El.Aleem S., "Hydration and durability of sulfate resisting and slag cement blends in Caron’s Lake water", Cem. Concr. Res., 35; (2005), pp. 1592-1600.

9.        Thidar Aye, Chiaki T. Oguchi, "Resistance of plain and blended cement mortars exposed to severe sulfate attacks" Constr. Build. Mater.  25 (2011) 2988–2996.

10.     Hanna K., Morcous G. and Tadros M. K., "Effect of Supplementary Cementitious Materials on the Performance of Concrete Pavement", J. Mater. Civ. Eng. 26, (2014), pp. 789-793.

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19.     Gu K., Jin F., Al-Tabbaa A., Shi B., and Liu J., "Mechanical and hydration properties of ground granulated blast furnace slag pastes activated with MgO–CaO mixtures", Constr. Build. Mater., 69, (30),  (2014), pp. 101-108.

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C. Savitha, S. Chandrakaran, T. M. Madhavan Pillai

Paper Title:

Coupled Lateral and Rocking Vibration of Footings with Internal Openings

Abstract: A study on the vibration of square and circular foundation with concentric internal holes is presented in this paper. The foundations are assumed to be rigid and embedded in, isotropic and linear elastic half-space and are subjected to coupled lateral and rocking excitation. This problem is analysed using an approximate method. The results are presented in frequency domain. Effects of embedment, mass ratio, ratio of inner to outer diameter (circular footing) or inner to outer width of the footing (square footing) and backfill are conducted to assess the behaviour. The accuracy and efficiency of the model are assessed on the basis of comparison studies with published literature. The results show that the embedment substantially affects the response in that it reduces the peak amplitudes and increases the corresponding frequencies.

Embedment, Footing, Lateral vibration, Rocking vibration.


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