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SYNCHRONIZATION OF SINgULAR MARKOVIAN JUMPINg NEUTRAL COMPLEX DYNAMICAL NETWORKS WITH TIME-VARYINg DELAYS VIA PINNINg CONTROL

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Acta Mathematica Scientia 2020年第3期40卷 863-886页

作者： K.S.ANAND J.YOgAMBIgAI g.a.harish babu M.SYED ALI S.PADMANABHAN APS College of Engineering Bangalore 560082India MMES College of Arts and Science MelvisharamTamilnaduIndia Reva Institute of Technology and Management Bengaluru-560064 Department of Mathematics Thiruvalluvar UniversityVelloreTamilnadu 632115India RNS Institute of Technology ChannasandraBangalore 560098India

This article discusses the synchronization problem of singular neutral complex dynamical networks(SNCDN)with distributed delay and Markovian jump parameters via pinning *** control strategies are designed to make the singular neutral complex networks *** delay-dependent synchronization criteria are derived in the form of linear matrix inequalities based on a modified Lyapunov-Krasovskii functional *** applying the Lyapunov stability theory,Jensen's inequality,Schur complement,and linear matrix inequality technique,some new delay-dependent conditions are derived to guarantee the stability of the ***,numerical examples are presented to illustrate the effectiveness of the obtained results.

关键词： Singular complex networks synchronization Lyapunov-krasovski method markovian jump pinning control linear matrix inequality

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Tuning of Optical Properties via Annealing of Bismuth Ferrite (BiFeO3) Thin Films

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Open Journal of Composite Materials 2024年第3期14卷 124-131页

作者： harish Kumar Meena Khushbu Meena Reena Verma Karishma Jain Sushil Kumar Jain Kedar babu Sharma Balram Tripathi Department of Physics S S Jain Subodh PG College Jaipur India Department of Physics University of Rajasthan Jaipur India Department of Physics School of Physical Sciences Manipal University Jaipur Jaipur India

In this study we are reporting annealing induced optical properties of bismuth ferrite (BiFeO3) thin films deposited on glass substrate via spin coating at 5000 rpm. The structural, optical and surface morphology of BiFeO3 (BFO) thin films have been studied via X-ray diffraction (XRD), Fourier transform infrared (FT-IR), Optical absorption (UV-Vis) and Photoluminescence (PL) spectroscopy. XRD spectra confirm annealing induced phase formation of BiFeO3 possessing a rhombohedral R3c structure. The films are dense and without cracks, although the presence of porosity in BFO/glass was observed. Moreover, optical absorption spectra indicate annealing induced effect on the energy band structure in comparison to pristine BiFeO3. It is observed that annealing effect shows an intense shift in the UV-Vis spectra as diffuse absorption together with the variation in the optical band gap. The evaluated optical band gap values are approximately equal to the bulk band gap value of BiFeO3.

关键词： Optical Properties Annealing Ferroelectrics Photo Luminescence BFO Thin Films

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Leaking Mycotic Aneurysm of Abdominal Aorta in a 14-Year-Old Boy with Infective Endocarditis and Severe Mitral Regurgitation—A Rare Case Report

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World Journal of Cardiovascular Surgery 2021年第1期11卷 8-15页

作者： harish babu Ravulapalli Ramesh Srigiri Periyasamy Ranjith Karthekeyan Mahesh Vakamudi Narayana Medical College & Hospital Nellore India Perioperative Medicine Fakeeh University Hospital Dubai United Arab Emirates Department of Cardiothorasic Surgery Sri Ramachandra Medical College Porur India Department of Cardiac Anaesthesiology Sri Ramachandra Medical College Porur India Sri Ramachandra Medical College Porur India

We present a case of leaking mycotic aneurysm of abdominal aorta complicated by infective endocarditis in a young boy of 14 years age. This boy with history of rheumatic heart disease with vegetations on mitral valve and severe mitral regurgitation landed up in complications of infective endocarditis like femoral artery thrombo embolism followed by an abdominal aortic aneurysm with contained rupture. This case was successfully managed addressing two problems i.e. valve and aneurysm repair in single sitting.

关键词： Mycotic Aneurysm Infective Endocarditis

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