Geometric Continuity Two-Rational Cubic Spline with Tension Parameters

Authors: M. Dube, P. S. Rana

Abstract— A smooth curve interpolation is very significant in computer graphics or in data visualization. In the present paper -piecewise rational cubic spline function with tension parameter is considered which produces a monotonic interplant to a given monotonic data set. The parameters in the description of the spline curve can be used to modify the shape of the curve, locally and globally. It is observed that under certain condition the interpolant preserves the convexity property of data set. We have discussed the constraints for rational cubic spline interpolant. The error analysis of the spline interpolant is also given.

Keywords—Continuity, convexity, interpolation, monotonicity, rational spline.

[1] Brodlie, K. W., Butt, S. Preserving convexity using piecewise cubic interpolation Computer and graphics,15(1991), 15-23.

[2] Delbourgo, R. Shape preserving interpolation to convex data by rational functions with quadratic numerator and linear denominator , IMA J.Numer. Anal., 9(1989), 123-136.

[3] Delbourgo, R. and Gregory, J.A., Shape preserving piecewise rational interpolation , SIAM J. Sci. Stat. Comput. 6(1985), 967- 975.

[4] Duan, Q., Wang, L. and Twizell, E. H., A novel approach to the convexity control of interpolant curves Methods Eng. 19(2003), 833-845.

[5] Gregory, J.A. and Delbourgo, R., Piecewise rational quadratic interpolation to monotonic data , IMA J.Numer. Anal., 2(1982), 123-130.

[6] Ismail, M.K., Monotonicity preserving interpolation using - rational cubic B′ezier curves , mathematical methods in CAGD II (eds) T Lyche and L.L.Schumaker (1992), 343-350.

[7] Sarfraz, M., Butt, S. and Hussain,Mz., Visualization of shaped data by rational cubic spline interpolation Computer and graphics, 25(2001), 833-845.

[8] Sarfraz, M., Butt, S. and Hussain, Mz., Visualization of shaped data by rational cubic spline interpolation. Computer and Graphics, 25(2001), 833-845.

Fabrication & Investigation of Bending Test on Hybrid (Sisal and Banana) Fiber Reinforced Polyester Composite Material

Authors: Kotresh Sardar, Dr. T. Rangaswamy, Shivakumar

Abstract— This paper constitutes the study of Mechanical Properties like Bending Strength of 10%, 20%, 30% and 40% HFRPC material used as Bio-material. An attempt is made to develop 10%, 20% 30% and 40% HFRPC material with low density, economical for bone implant with respect to biocompatibility and the mechanical behavior of human bone, such as cortical, according to the ASTM D-790-02 for Bending test using the polyester resin as the matrix material with the HFRPC 10%, 20% 30% and 40% of the material with fiber weight fraction, random continuous long fiber orientation, by using the Hand Layup fabrication technique the specimens are prepared. The bending tests are conducted by preparing varying percentage of standard specimen. It is found that there is appreciable improvement in bending Properties of 10%, 20%, 30% and 40% HFRPC material. This Study suggests 30% and 40% of HFRPC material may be suitable for the different application in the replacement of human bone. From the Experimental results it is found that by increasing the weight fraction of the fiber or percentage of fiber which will increase the bending strength and also increases the density and mass of composite specimen. This study suggests that the HFRPC material is less cost, low density and high strength biocompatible material and may be suggested for implant, especially for cortical bone. From the Experimental results the strengths of HFRPC materials may be suitable the cortical Strength. Finally 30% and 40% HFRPC material can be suggested for cortical. Further it can be tested for remaining mechanical cortical properties.

Keywords— Hybrid (sisal and banana) Fibre Reinforced Polyester Composite Materials (HFRPC), cortical, bending test and Hand lay-up Technique. UTM.

[1] Berghezan,A.Nucleus,8(5),1966,(Nucleus A Editeur, 1, rhe, Chalgrin, Paris, 16(e).

[2] Carter, D.R., and Spengler, D.M. (1978). ―Mechanical properties and composition of cortical bone.‖ Clin Orthops Relat Res 135: 192- 217.May 2012

[3] Williams,Wiley, New York, 1980, Ch. 36. G. F. Howden, Mechanical Properties of Biomaterials (eds G. W. Hastings & D. F)

[4] Martin, R. B., D. B. Burr, et al. (1998). Skeletal Tissue Mechanics. New York, Springer-Verlag

[5] M S.Ramakrishna, J. Mayer, E. Wintermantel, Kam W. Leong, paper entitled ―Biomedical application of polymercomposite materials: a review‖, Composites science and technology journal, 61 (2001), pp (1189-1224), ELSEVIER.

[6] D. CHANDRAMOHAN et al. paper entitled ―Bio composite materials based on bio polymers and natural fibers -contribution as bone implants‖ (ijamsar) international journal of advanced medical sciences and applied research vol no. 1, issue no. 1, 009 – 012.

[7] Girisha.C*1, Sanjeevamurthy2, Gunti Rangasrinivas3 , Manu.S4 ―Mechanical Performance Of Natural Fiber-Reinforced EpoxyHybrid Composites‖

[8] Dr. K R Dinesh1, Jagadish S P 2, Dr. A Thimmanagouda3 , Dr. Neeta Hatapaki4, ―Characterization and Investigation of Tensile and Compression Test on Sisal Fibre Reinforcement Epoxy Composite Materials Used as Orthopaedic Implant‖

[9] www.biomaterials.com

[10] M.SAKTHIVEl1, S.RAMESH2 Mechanical Properties of Natural Fibre (Banana,Coir, Sisal) Polymer Composites [11] D. CHANDRAMOHANa, K. MARIMUTHUb* Characterization of natural fibers and their application in bone grafting substitutes

[12] GREGORY M. ERICKSON,1,2* JOSEPH CATANESE III,3 AND TONY M. KEAVENY3 Evolution of the Biomechanical Material Properties of Femur bone.

[13] Jagadish S P2,―CHARACTERIZATION AND ANALYSIS OF WEAR STUDY ON SISAL FIBRE REINFORCEMENT EPOXY COMPOSITE MATERIALS USED AS ORTHOPAEDIC IMPLANT‖ International Journal of Advances in Engineering & Technology, Jan. 2014. ©IJAET ISSN: 22311963

Energy Efficient Cooling Techniques as a Substitute to Air Conditioners for Major Cities of Maharashtra

Authors: M.M.Kulkarni, Dr.K.N.VijayKumar, S.B.Kadam, S.S.Beloshe

Abstract— This paper proposes methodology of utilizing advanced evaporative techniques for energy efficient cooling in five major cities of Maharashtra for replacement air conditioners. It presents the basic principles of direct and indirect evaporative cooling and defines the effectiveness of the system. Later on, it determines feasibility index for all months for five major cities and decides whether the system is efficient for particular city and its weather for particular month. It is found that evaporative cooling technique can replace air conditioners in all five cities for all months except for month of July and August. It is observed that use of direct and indirect evaporative cooling along with combination can lead to comfort conditions in terms of temperature and humidity as per recommendations of ASHRAE standards. Temperature achieved is in the range of 12°C to 25°C for the various months of the year with humidity in the range of 50 %to 70%. Therefore, it can be concluded that evaporative cooling can replace air conditioners for major period of year in all cities leading to substantial saving in energy without compromising indoor air quality that is presently achieved by air conditioners.

Keywords— Air Conditioning, Aurangabad, Evaporative Cooling, Dew point indirect cooler, Feasibility Index, Kolhapur, Nagpur, Nashik, Solapur

1. Watt, J.R., 1963, “Evaporative air conditioning”, The Industrial Press, New York. Watt, J. R., Brown, W. K., 1997.

2. Egbal Ahmed , Osama Abaas: Performance evaluation of three different types of local evaporative cooling pads in greenhouses in sudan. Saudi Jouranal of Biological Sciences (2011) 18,45-51

3. J. R. Camargoa, C. D. Ebinumaand S. cardosoa: Three methods to evaluate the use of evaporative cooling for human thermal comfort. Thermal Engg, Vol.5, No.02, December 2006, Page 9-15.

4. R. Boukhanouf, H. G. Ibrahim, A. Alharbi, and M. Kanzari investigation of an evaporative cooler for buildings in hot and dry climates Journal of Clean Energy Technologies, Vol. 2, No. 3, July 2014

5. J.K. Jain,D.A. Hindoliya Experimental performance of new evaporative cooling pad materials. Sustainable Cities and Society 1 (2011) 252– 256

6. X. Cui, K.J.Chua: Studying the performance of and improved dew-point evaporative design for cooling application. Applied Thermal Engineering 63 (2014) 624-633.

7. Moien Farmahini, Ghassem Heidarinejad: Increasing effectiveness of evaporative cooling pre-cooling using nocturnally stored water. Applied Thermal Engineering 38 (2012) 117-123.

8. Samar Jaber, Salman Ajib: Evaporative cooling as an efficient system in Mediterranean region. Applied Thermal Engineering 31 (2011) 2590-2596.

9. Ebrahim Hajidavalloo: Application of evaporative cooling on the condenser of window-air-conditioner. Applied Thermal Engineering 27 (2007) 1937-1943.

10. Ala Hasan: Going below the wet-bulb temperature by indirect evaporative cooling: analysis using a modified ε-NTU method. Applied Energy 89 (2012) 237-245

11. F. Bruno, On-site experimental testing of a novel dew point evaporative cooler, Energy and Buildings. 43 (2011) 3475- 3483.

Multimodal Biometric System Based "Integrating Strategies Approach at Feature Level"

Authors: Shyam Sunder, Prof. (Dr.) Ram Singh

Abstract--Biometric authentication system has become one of the tremendous developing technologies for security based applications. Multimodal biometrics refers the combination of two or more biometric modalities in a single identification. Most biometric authentication systems are done based on knowledge base and token based identification these are predisposed to to swindle. Biometric authentication employs inimitable combinations of measurable physical characteristics- fingerprint, facial features, iris of the eye, speech print that cannot be forged by others. The aim of this paper is to study the fusion at article extraction level for face and fingerprint biometrics. The suggestedtactic is based on the fusion of the two traits by extracting independent feature point sets from the two modalities, and making the two point sets companionable for concatenation. K-means clustering feature reduction techniques are implemented, prior and later the feature point sets combination and the results are appropriately recorded. A comparative graph shows that feature level fusion is more effective as matching score level.

Keywords- MBS, Biometrics, Substantiation, Templates, Fusion, Fingerprint.

[1] J.Wayman , A Jain, D. Maltoni, D.Maio, Biometric systems, Technology ,Degign Performance evaluation, Springer 2005.

[2] A.K.Jain, A.Ross and S.Parbhakarn, “Overview ofbiometric appreciation”.

[3] Zongkong, S.Teller, B.Mustaq, D. and Louie,”Intelligence in the field of watermarking and digital interfaces”.

[4] A. Ross, J.K.Rosenbolt, and A.K.Jain, “Various fusion techniques and advantages oftheMulti-biometrics”.

[5] A.Ross and A.K. Jain, “Information fusion in biometrics”.

[6] A. K. Jain and U.Uludag, “Hiding biometric data”.

[7] L. I. Kuncheva, C.J. Whitanker, C.A. Shippie and R.P.W.JDuin, “MBScombining patterns based on biomatrics”. [8] D. josaf, D.Daniel, A.K.Jony, Handbook of finger print recognition , Springer 2003

[9] M. Indovina, U. Ulunadag, R.Snelock, A. Mink, “Multi-modal Biometric Authentication methods: A COTS Approach”.

[10] http://arxiv.org/pdf/1002.2523 [11] http://danishbiometrics.files.wordpress.com/2010/02/200903401.p df

[12] http://eprints.uniss.it/2144/1/Rattani_A_ContrCongresso_2007_Fe ature.pdf

Synthesis and Properties of a Novel Isomeric Polyimide/SiO2 Hybrid Material

Authors: K. Umakanth, H. R. Sreepad

Abstract--A novel isomeric polyimide/SiO2 hybrid material was successfully prepared through sol–gel technique, and its structure, thermal properties and nano-indenter properties were investigated. First, 3-[(4-phenylethynyl) phthalimide]propyl triethoxysilane (PEIPTES) was successfully synthesized, its structure was characterized by elemental analysis, FT-IR and 13C NMR. The researches on solubility and thermal properties of PEIPTES show that it can be used for modifying nano-SiO2 precursor. Nano-SiO2 precursor was synthesized by tetraethoxysilane (TEOS) through sol–gel technique. Then the PEIPTES solution and the nano-SiO2 precursor were mixed for 6 h to let the PEIPTES molecules react with the nano-SiO2 precursor, and modified nano-SiO2 precursor was obtained. The modified reaction was confirmed by the analyses of FT-IR. At last, isomeric polyimide/SiO2 hybrid material was produced by using isomeric polyimide resin solution and the modified nano-SiO2 precursor after heat treatment process. The structure analysis by SEM indicated that SiO2 particles dispersed in isomeric polyimide matrix homogeneously with nanoscale. Thermogravimetric analyzer, dynamic mechanical thermal analyzer and nano-indenter XP was employed to detect the properties of the materials, the results demonstrated that isomeric polyimide/SiO2 hybrid material has much better thermal properties and nano-indenter properties than those of isomeric polyimide. It is confirmed that PEIPTES acts as a bridge between the SiO2 particles and the isomeric polyimide matrix in the hybrid material, because the ethoxyl of PEIPTES could participate in the hydrolyzation and condensation to form chemical bond with SiO2 particles and its phenylethynyl group could take part in the crosscuring reaction of isomeric polyimide.

Keywords-- polymides, peiptes, hybrid material, phenylethynyl groub, NMR

[1] Y.T. Chern and C.M. Huang, Synthesis and characterization of new polyimides derived from 4,9-diaminodiamantane, Polymer 39 (1998) (25), pp. 6643–6648.

[2] D.J. Liaw, B.Y. Liaw and C.W. Yu, Synthesis and characterization of new organosoluble polyimides based on flexible diamine, Polymer 42 (2001), pp. 5175–5179.

[3] C.P. Yang and F.Z. Hsiao, Synthesis and properties of fluorinated polyimides based on 1,4-bis(4-amino-2-trifluoromethylphenoxy)- 2,5-di-tert-butylbenzene and various aromatic dianhydrides, Journal of Polymer Science: Part A: Polymer Chemistry 42 (2004), pp. 2272–2284.

[4] Y.J. Tong, S.L. Liu and H.M. Guan, Polyimides from isomeric biphenyltetracarboxylic dianhydrides and the effects of chemical structure on solubility, Polymer Engineering and Science 42 (2002) (1), pp. 101–110.

[5] S. Jain, H. Goossens, F. Picchioni, P. Magusin, B. Mezari and M.V. Duin, Synthetic aspects and characterization of polypropylene– silica nanocomposites prepared via solid-state modification and sol– gel reactions, Polymer 46 (2005), pp. 6666–6681.

[6] L. Mascia and A. Kioul, Influence of siloxane composition and morphology on properties of polyimide–silica hybrids, Polymer 36 (1995) (19), pp. 3649–3659.

[7] T.A. Shantalii, I.L. Karpova and K.S. Dragan, Synthesis and thermomechanical characterization of polyimides reinforced with the sol–gel derived nanoparticles, Science and Technology of Advanced Materials 4 (2003), pp. 115–119.

[8] A. Morikawa, Y. Iyoku, M. Kakimoto and Y. Imal, Preparation of new polyimide–silica hybrid materials via the sol–gel process, Journal of Materials Chemistry 2 (1992), pp. 679–690.

Load Balancing In Distributed System Using FCFS Algorithm With RBAC Concept And Priority Scheduling

Authors: Geeta, Charanjit Singh

Abstract-- Now a days CPU workload, hardware technology and multiprocessor services are developing rapidly. For availability, scalability and higher performance more and more server are required Load balancing is key issue in these type of situation. To avoid overload and for maximum throughput load balancing is required. In distributed system computers are not same type means not same configuration so that some computer finish their work earlier and sit ideal which degrade the performance of multicomputer system. For proper load balancing a new algorithm is developed which use first come first serve and priority scheduling with RBAC An efficient system has three element – collection of device, network connect to these computer and software that enable to share data between these computer. This paper contains a scheduling algorithm for proper load balancing in distributed environment.

Keywords-- distributed system, load balancing, priority, FCFS.

[1] Mudassar Ahmad” Prognostic Load Balancing Strategy For Latency Reduction In Mobile Cloud Computing”. Middle-East Journal Of Scientific Research 16 (6): 805-813, 2013 Issn 1990-9233 © Idosi Publications, 2013 Doi: 10.5829/Idosi.Mejsr.2013.16.06.11314.

[2] Amandeep Kaur Sidhu ”Analysis Of Load Balancing Techniques In Cloud Computing”. International Journal Of Computers & Technology Volume 4 No. 2, March-April, 2013, Issn 2277-3061, Www.Cirworld.Com.

[3] Soebhaash Dihal “Mobile Cloud Computing: State Of The Art And Outlook”. Soebhaash Dihal, Harry Bouwman, Mark De Reuver, Martijn Warnier, Christer Carlsson, (2013),"Mobile Cloud Computing: State Of The Art And Outlook", Info, Vol. 15 Iss: 1 Pp. 4 - 16.

[4] B. Subramani "A New Approach For Load Balancing In Cloud Computing”. Ieee Volume 2 Issue 5 May, 2013 Page No. 1636-1640

[5] Ram Prasad Padhy "Load Balancing In Computing System”. Department Of Computer Science And Engineering National Institute Of Technology, Rourkela Rourkela-769 008, Orissa, India May, 2011.

[6] Fan Yang,”Sonora: A Platform For Continuous Mobile-Load Balancing”. Microsoft Research Asia University of Washington In Pods (2012).