In this paper we propose a high frequency unity power factor correction resonant converter for electronic ballast lamps. The change in the switching frequency of the converter changes the output voltage amplitude of the converter also changing the harmonic distortion in the output voltage and current. To maintain the input current shape the converter employs small energy tanks reducing the THD of the input current. The efficiency, THD of the converter are analyzed in MATLAB Simulink software with respect to change in switching frequency and presented in this paper.

Keywords: Total Harmonic Distortion (THD) Matrix Laboratory (MATLAB)

[1]. Chen Zhao, Xinke Wu, Peipei Meng, and Zhaoming Qian"Optimum design consideration and implementation of a novel synchronous rectified soft switched phase shift full bridge converter for low output voltage high output current applications" IEEE Transactions On Power Electronics, Vol. 24, No. 2, February 2009 pp: 388-398.

[2]. Reas Ecklebe, and Reas Lindemann, and Sebastian Schulz "Bidirectional switch commutation for a matrix converter supplying a series resonant load" and, IEEE Transactions on Power Electronics, vol. 24, no. 5, may 2009 pp:1173-1183.

[3]. Laszlo Huber, Kevin Hsu, Milan M. Jovanovic, Dennis J. Solley, Gennady Gurov, and Robert M. Porter , "1.8-MHz, 48-V Resonant VRM: Analysis,Design, and Performance Evaluation" IEEE Transactions On Power Electronics, Vol. 21, No. 1, January 2006 pp: 79-89.

[4] M.C.Cosby and R.M.Nelms, "A resonant inverter for electronic ballast applications," IEEE Transaction on Industrial Electronics, vol. 41, no. 4, pp. 418–425, 2011

This work was devotedto examining the effects of fly ash geopolymer mixed with 15% Barium Sulphate on radiation attenuation using Gafchramic XR-QA2 film. The fly ash geopolymer with 15% Barium Sulphate made high attenuation at energy of 120 KVp. In this study, the maximum radiation attenuation value of 99.43% was obtained by the design shielding box. The X-ray machine was used as a source for X-rays. While the Gafchramic XR-QA2 film dose was measured by the optical density equation, the ion chamber is used for dose measurement.

Keywords: Fly ash geopolymer; BaSO4; Attenuation coefficient; Gafchramic XR-QA2 film; Ion chamber

[1] Kotwal, A.R., et al., Characterization and early age physical properties of ambient cured geopolymer mortar based on class C fly ash. International Journal of Concrete Structures and Materials, 2015. 9(1): p. 35-43.
[2] Singh, N., et al., Comparative study of lead borate and bismuth lead borate glass systems as gamma-radiation shielding materials. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2004. 225(3): p. 305-309.
[3] Hu, S., et al., Bonding and abrasion resistance of geopolymeric repair material made with steel slag. Cement and concrete composites, 2008. 30(3): p. 239-244.
[4] Hardjito, D., Studies of fly ash-based geopolymer concrete. 2005: Curtin University of Technology.
[5] Lee, W. and J. Van Deventer, The interface between natural siliceous aggregates and geopolymers. Cement and Concrete Research, 2004. 34(2): p. 195-206.

This paper described development of PIC-Microcontroller based fully-automatic blood pressure monitoring system with GSM communication. Traditionally mercury sphygmomanometers are used for blood pressure measurement; however mercury sphygmomanometer method is manual and is mostly understood by expert. Later, Oscillometric devices often referred to as automatic devices are introduced; automatic blood pressure devices do not require observer participation beyond placing the cuff on the arm and noting the digital blood pressure readout. The objective of this paper is to enhance the existing automatic blood pressure devices by adding GSM communication facility so that health personnel can monitor a patient's blood pressure (BP)..............

Keywords: Automatic Blood Pressure Monitoring, Heart rate, PIC-Microcontroller, GSM, LCD.

[1] Feng, "Blood Pressure Meter Design Using Microchip's PIC24F Microcontroller and Analog Devices," Microchip Technology Inc, 2013.

[2] M.-C. Pan, P.-C. Li and Y.-R. Cheng, "Remote online machine condition monitoring system," Elsevier, vol. 41, no. 8, pp. 912-921, 2008.

[3] M. M. Susan Buchanan, "The Accuracy of Alternatives to Mercury Sphygmomanometers," H e a l t h C a r e R e s e a r c h Co l l a b o r a t i v e, Chicago, 2009.

[4] SUNROM Electronics, "Blood Pressure Sensor - Serial output," Febuary 2015. [Online]. Available: http://www.sunrom.com/p/blood-pressure-sensor-serial-output. [Accessed 2 June 2015].

[5] U. Shuaibu, H. K. Verma, R. A. Abdulkadir and C. Mohan, "DESIGN AND DEVELOPMENT OF INTELLIGENT ELECTRONICS TRAVELLING AID FOR VISUALLY IMPAIRED (IETA-V," International Journal of Research in Engineering and Technology, vol. 4, no. 11, pp. 341-348, 2015.

Offered work, it is devoted to a geometrization of physics and research of ray system. We consider system of circular, wavy and zigzag trajectories of the movement of electrons in atom shells. We show communication between the nuclear model of atom and wavy trajectories located along a horizontal tape. The offered model of the movement of electrons is based on geometrical interpretation of the principle of Pauli and Periodic Table of chemical elements. Visual interpretation of distribution of electrons in energy levels and shells of atom is shown. In our constructions we are also based on the known models of trajectories of electrons in atom.

Keywords: Atom, binomial, trajectories, energy splitting levels, geometrization of physics

[1] L. D. Landau and E. M. Livshits, Theoretical physics. Vol. 3. Quantum mechanics. Nonrelativistic theory. Moscow: Nauka, 1989. (Russian)

[2] K. A. Putilov and V. A. Fabrikant, Physics course. Vol. 3. Moscow: Fizmatgiz, 1960. (Russian)

[3] I. V. Savelyev, Course of the general physics. Vol. 3. Moscow: Nauka, 1982. (Russian)
[4] D. V. Sivykhin. Atomic and Nuclear Physics. Part 1. Atomic Physics. Moscow: Nauka, 1986. (Russian)
[5] J. F. Peters, Two forms of proximal physical geometry. Axioms, sewing regions together, classes of regions, duality, and parallel fiber bundles. arXiv:1608.06208v4 [math.GN] 18 Nov 2016.

Hydrogenated a-Si0.47Ge0.53 thin films were prepared at 200 and 250C by the glow-discharge deposition technique from SiH4 and GeH4 gases. The Structural changes of the films were characterized using IR, XRD and SEM after annealing at 300C for 8h. Remarkable structural degradation was observed upon annealing because of the formation of hydrogen bubbles which give rise to surface bumps. The influence of annealing on the electrical conductivity and optical energy gap of a- Si0.47Ge0.53:H thin films was discussed. The results revealed that the electrical conductivity is increased with increasing the annealing temperatures and /or annealing time, while optical energy gap is decreased. On the other hand it was found that the activation energy of crystallization deduced from the annealing time dependence of the conductivity using Avrami's equation is structural dependent.

Keywords: Optical properties, electrical properties, a-SiGe:H, hydrogen content and crystallization.

[1] M. S. Abo Ghazala, Physica B 293, 132 (2000).[2] G. G. Pethuraja, R. E. Welser, A. K. Sood, C. Lee, N.J. Alexander, H. Efstathiadis,
[2] P. Haldar, J. L. Harvey, Mater. Scie. Appi. vol. 3, pp. 67 (2012).[3] K. W. Jobson, J. P. R. Wells , R. E. I. Schropp , D. A. Carder , P. J.
[3] Philips, J. I. Dijkhuis , Phys. Rev. vol. 873, pp. 155202 (2006).[4] S. Acco , D.L. Williamson , P.A. Stolk , F.W. Saris , M.J. van den Boogaard,
[4] W.C. Sinke , W.F. van der Weg , S. Roorda , P.C. Zalm , Phys. Rev. B 53, 4415(1996).
[5] M. Daouahi, K. Zellama, H. Bouchriha, P. Elkaïm, Eur Phys J AP10,185 (2000) R.J. Soukup, N.J. Ianno, S.A. Darveau, C.L. Exstrom, Sol Energy Mater Sol. Cells 87,87 (2005).

Diyarbakır Plain, a part of the historical Mesopotamian Plain, has been home to many civilizations. One of the most basic reasons for this is that it has fertile soil and partly rich groundwater and surface water resources. Agricultural irrigation has begun to be realized especially with agricultural grounds for the between 1990-2007 years. This situation threatens the groundwater potential of Diyarbakır Plain. In this study, static and dynamic water level maps of Basin were extracted using ARC INFO program as Geographic Information System.............

Keywords: Diyarbakır Plain, GIS, Groundwater, Static Water Level, Dynamic Water Level

[1] ÜSTÜN,G.E., S.K.Akal Solmaz. 2004 Yeraltı Suyu Potansiyelini Koruma, Kontrol Ve Kurtarma Amaçlı Alınabilecek Önlemler I.Yeraltısuları Ulusal Sempozyumu 23–24 ARALIK –KONYA
[2] CHARBENEAU, R. J. Groundwater hydraulics and pollutant transport. Prentice Hall. New Jersey, USA, 2000.
[3] BOUWER , H., Fox, P., Westerhoff, P., Drewes, J., 1999. Integrating water management and reuse: causes for concern? Water Quality International, January February 1999, pp. 19–22.
[4] UNESCO. 2006 Coping With Water Scarcity A strategic issue and priority for system-wide action ftp://ftp.fao.org/agl/aglw/docs/waterscarcity.pdf
[5] BENNETT, 2000. A.J., Environmental consequences of increasing production: some current perspectives. Agric. Ecosys. Environ. 82 (2000), pp. 89–95.

Ce que l'on appelle intégration des progiciels de gestion intégrés (PGI), conduit généralement à une refonte du système d'information de gestion, et à une remise à plat des procédures de gestion en place, lesquelles peuvent être par la suite réorganisées suivant les orientations stratégiques ciblées par l'entreprise. Les principaux problèmes commencent lorsqu'il s'agit d'intégrer les fonctionnalités spécifiques à l'entreprise dans le PGI. Entre la standardisation des processus de gestion et la personnalisation du PGI, les entreprises semblent être souvent en quête d'un équilibre qui reflète la cohérence de leurs choix et de leurs décisions avec leurs orientations stratégiques. C'est sur ce thème que notre présente recherche se positionne................

Keywords: Enterprise Resource Planning(ERP), Organisationnel Change, Organisationnel Integration, SME, Strategic Management.

[1] B. Vincent et S. Gharbi, Impact du déploiement de SAP R/3 sur la performance globale d'une entreprise et facteurs clés de succès: proposition d'un tableau de bord et application dans le secteur de l'industrie pharmaceutique, Journée de recherche à l'IAE de Montpelier, 2004, 1-27.
[2] S. Mourlon et L. Neyer, Tout ce que nous avons voulu savoir sur les ERP, Les Annales des Mines de Paris, 2002.

[3] N. Bancroft, Implementing SAP R/3 (Manning Publications, Greenwich, 1996)
E. Brynjolfsson et L. M. Hitt, Beyond Computation: Information Technology, Organizational Transformation and Business Performance, Journal of Economic Perspectives, 2000, 14(4), 23-48 W. Gu et S. Gera, The Effect of Organizational Innovation and Information Technology on Firm Performance, The Canadian Economy in Transition Series - Statistics Canada, 2004. B. Dostie et R. Jayaraman, Organizational Redesign, Information Technologies and Workplace Productivity, Les Cahiers du CREF, 2008.

The curvity is among the first alterations in the retinal vessel network to appear in many retinopathies , such as those due to hypertension. An automatic evaluation of retinal vessel tortuosity would help the early detection of such retinopathies. Quite a few techniques for tortuosity measurement and classification have been proposed, but they do not always match the clinical concept of tortuosity. This justifies the need for a new definition, able to express in mathematical terms the tortuosity as perceived by ophthalmologists. We propose here a new algorithm for the evaluation of tortuosity in vessels recognized in digital fundus images...............

Keywords: Curvity, Ophthalmologists, Retinopathy, Tortuosity.

[1] Masoud Aghamohamadian-Sharbaf; Hamid Reza Pourreza; Touka Banaee IEEE Journal of Biomedical and Health Informatics Year: 2016
[2] M. M Fraz, P. Remagino, A. Hoppe, B. Uyyanonvara, A.R. Rudnicka, C.G. Owen, S.A. Barman Year: 5th March 2012
[3] Xu X, Niemeijer M, Song Q, Sonka M, Garvin MK Vessel boundary delineation on fundus images using graph-based approach. Year: 2011
[4] E. Trucco, H. Azegrouz, B. Dhillon, "Modeling the tortuosity of retinal vessels: Dos caliber play arole?", IEEE Transaction on Biomedical Engineering Year: 2010
[5] A Angelos, Y.H. Lip Kalitzeos Gregory, Rebekka Heitmar, "Retinal vessel tortuosity measures and their applications", Experimental Eye Research , Year:2013