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- 저자 : B. SELVARAJ (검색결과 4 건)
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EXISTENCE OF SOLUTIONS FOR IMPULSIVE NONLINEAR DIFFERENTIAL EQUATIONS WITH NONLOCAL CONDITIONS
B. SELVARAJ,M. MALLIKA ARJUNAN,V. KAVITHA 한국산업응용수학회 2009 Journal of the Korean Society for Industrial and A Vol.13 No.3
In this article, we study the existence and uniqueness of mild and classical solutions for a nonlinear impulsive differential equation with nonlocal conditions u'(t) = Au(t) + f(t, u(t), Tu(t), Su(t)), 0 ≤ t ≤ T?, t ≠ ti, u(0) + g(u) = uu(0) + g(u) = u?, △u(ti) = Ii(u(ti)), i = 1, 2,... p, 0 < t₁ < t₂ < … < tp < T?, in a Banach space X, where A is the infinitesimal generator of a C? semigroup, g constitutes a nonlocal conditions, and △u(ti) = u(t?i ) - u(t?i ) represents an impulsive conditions.
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On the Development of Lofts for Doubly Curved Sheet Metal Components
Prasad, K.S.R.K.,Selvaraj, P.,Ayachit, Praveen V.,Nagamani, B.V. Society for Computational Design and Engineering 2006 International Journal of CAD/CAM Vol.6 No.1
Practical automated flat pattern generation with inbuilt production features for doubly curved sheet metal components (SMCs) is addressed here utilizing a new and unique Point Transformation Algorithm (PTA). This is the third in the series of papers on practical Flat Pattern Development (FPD) [8] and Production Loft Generation Systems (PLGS) [9] complementing the pioneering work [6,7]. In the first two publications, automated loft generation programs have addressed sheet metal components having a Principal Flat Surface (PFS) only. The flat pattern development of 3-D components that do not have the flat surface(termed as Non-PFS components) having complex features of double curvature in addition to cutouts and nibbled holes typical of aircraft components were so far not addressed due to lack of relevant published algorithms. This paper traces the evolution of developments and provides the record of fully illustrated, automated loft generation scheme for aircraft SMCs including the Non-PFS components which underwent validation through production tests by sponsors. Details of some of the unique features of the system like simplified surface model generation, termed as topological model and powerful algorithms deployed with potential for CAD/CAM applications are included.
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Avinash Kumar Acharya,Anil Kumar Sharma,Ch.S.S.S. Avinash,Sanjay Kumar Das,Lydia Gnanadhas,B.K. Nashine,P. Selvaraj 한국원자력학회 2017 Nuclear Engineering and Technology Vol.49 No.7
In liquid metal fast breeder reactors, postulated failures of the plant protection system may lead toserious unprotected accidental consequences. Unprotected transients are generically categorized astransient overpower accidents and transient under cooling accidents. In both cases, core meltdown mayoccur and this can lead to a molten fuel coolant interaction (MFCI). The understanding of MFCI phenomenais essential for study of debris coolability and characteristics during post-accident heat removal. Sodium is used as coolant in liquid metal fast breeder reactors. Viewing inside sodium at elevatedtemperature is impossible because of its opaqueness. In the present study, a methodology to depict MFCIphenomena using a flat panel detector based imaging system (i.e., real time radiography) is brought outusing a woods metal-water experimental facility which simulates the UO2-Na interaction. The developedimaging system can capture attributes of the MFCI process like jet breakup length, jet front velocity,fragmented particle size, and a profile of the debris bed using digital image processing methods likeimage filtering, segmentation, and edge detection. This paper describes the MFCI process and developedimaging methodology to capture MFCI attributes which are directly related to the safe aspects of a sodiumfast reactor.
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Recent progress and growth in biosensors technology: A critical review
Utkarsh Chadha,Preetam Bhardwaj,Rushali Agarwal,Priyanshi Rawat,Rishika Agarwal,Ishi Gupta,Mahek Panjwani,Shambhavi Singh,Chirag Ahuja,Senthil Kumaran Selvaraj,Murali Banavoth,Prashant Sonar,Badrish B 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.109 No.-
Crucial exploitation of biosensors has attained dominant significance in the meadow of drug innovation,drug identification, bio-remedy, food protection principles, security, protection, and ecological examination. It has direct to the innovation of specific and authoritative diagnostic tools that employ biologicalsensing elements as biosensors. Glucometers employ oxygen or hydrogen peroxide electrochemicalrecognition utilizing immobilized glucose oxidase electrodes, showing biosensors’ invention. Currentadvances in biological methods and instrumentation relating to fluorescence tags to nano-materials haveincreased the responsive limit of biosensors. The use of aptamers or nucleotides, antibodies, peptidearrays, and molecule imprinted polymers offer tools to build up novel biosensors over the classicalmethod. Integrated methods offer an improved perception for a buildup of precise and responsive biosensorswith high regenerative potentials. Various biosensors ranging from nanomaterials polymers tomicrobes have more comprehensive potential applications. Combining multifaceted approaches to designbiosensors that comprise the prospective for different usage is reasonably significant. In light of this, thisreview provides an overview of different types of biosensors being used, ranging from electrochemicaland fluorescence tagged, nanomaterials, silica or quartz, and microbes for various biomedical and environmentalapplications with the future outlook of biosensor technology.
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