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Murty, V.Ramachandra,Bhat, Jayadev,Muniswaran, P.K.A. The Korean Society for Biotechnology and Bioengine 2002 Biotechnology and Bioprocess Engineering Vol.7 No.4
Experiments on deactivation kinetics of immobilized lipase enzyme from Candida cyl-indracea were performed in stirred bath reactor using rice bran oil as the substrate and temperature as the deactivation parameter. The data were fitted In first order deactivation model. The effect of temperature on deactivation rate was represented by Arrhenius equation. Theoretical equations were developed based on pseudo-steady state approximation and Michaelis -Menten rate expression to predict the time course of conversion due to enzyme deactivation and apparent half-life of the immobilized enzyme activity in PFR and CSTH under constant feed rate polity for no diffusion limitation and diffusion limitation of first order. Stability of enzyme in these continuous reactors was predicted and factors affecting the stability were analyzed.
Hydrolysis of Oils by Using Immobilized Lipase Enzyme : A Review
Murty, V.Ramachanda,Bhat, Jayadev,Muniswaran, P.K.A. The Korean Society for Biotechnology and Bioengine 2002 Biotechnology and Bioprocess Engineering Vol.7 No.2
This review focuses on the use of immobilized lipase technology for the hydrolysis of oils. The importance of lipase catalyzed fat splitting process, the various immobilization procedures, kinetics, deactivation kinetics, New immobilized lipases for chiral resolution, reactor configurations, and process considerations are all reviewed and discussed.
Murty, Neti V.L. Narasimha,Jit, S. The Institute of Electronics and Information Engin 2008 Journal of semiconductor technology and science Vol.8 No.1
A simple and efficient way of modeling backgating in GaAs MESFET's is presented through depletion width modulation of Schottky junction and channel-substrate interface. It is shown semi-empirically that such a modulation of depletion widths causes serious troubles in designing precision circuits since backgating drastically reduces threshold voltage of MESFET as well as drain current. Finally, some of the results are compared with reported experimental results. This model may serve as a starting point for rigorous characterization of backgating effect on various device parameters of GaAs MESFET's.
Murty, Neti V.L. Narasimha,Jit, S. The Institute of Electronics and Information Engin 2006 Journal of semiconductor technology and science Vol.6 No.3
A new analytical model for the static I-V characteristics of GaAs MESFET’s under optically controlled conditions in both linear and saturation region is presented in this paper. The novelty of the model lies in characterizing both photovoltaic (external, internal) and photoconductive effects. Deep level traps in the semi insulating GaAs substrate are also included in this model. Finally, effect of backgate voltage on I-V characteristics is explained analytically for the first time in literature. Small signal parameters of GaAs MESFET are derived under both dark and illuminated conditions. Some of the results are compared with reported experimental results to show the validity of the proposed model. Since accurate dc modeling is the key to accurate ac modeling, this model is very useful in the designing of photonic MMIC’s and OEIC’s using GaAs MESFET.
THREE POINT BOUNDARY VALUE PROBLEMS FOR THIRD ORDER FUZZY DIFFERENTIAL EQUATIONS
Murty, M.S.N.,Kumar, G. Suresh 충청수학회 2006 충청수학회지 Vol.19 No.1
In this paper, we develop existence and uniqueness criteria to certain class of three point boundary value problems associated with third order nonlinear fuzzy differential equations, with the help of Green's functions and contraction mapping principle.
CONTROLLABILITY, OBSERVABILITY, AND REALIZABILITY OF MATRIX LYAPUNOV SYSTEMS
Murty M.S.N.,Rao B.V. Appa,Kumar G. Suresh Korean Mathematical Society 2006 대한수학회보 Vol.43 No.1
This paper presents necessary and sufficient conditions for complete controllability, complete observability and realizability associated with matrix Lyapunov systems under certain smoothness conditions.
Hydrolysis of Rice Bran Oil Using Immobilized Lipase in a Stirred-Batch Reactor
Murty, V.Ramachandra,Bhat, Jayadev,Muniswaran, P.K.A. The Korean Society for Biotechnology and Bioengine 2002 Biotechnology and Bioprocess Engineering Vol.7 No.6
Candida cylindracea lipase was immobilized by adsorption on acid washed glass beads. It was observed that protein loading of the support depends on the size of the particle, with smaller particle containing higher amount of protein per unit weight. Initial reaction rate linearly varied up to enzyme concentration of 17.25 U/mL. Amount of free fatty acids produced was linearly proportional up to the enzyme loading of 1650 $\mu$g/g of bead. Achievement of chemical equilibrium took longer time in the case of less protein loading. Degree of hydrolysis was found to decrease in second and third consecutive batch operations on repeated use of immobilized lipase.
On Observability of Fuzzy Dynamical Matrix Lyapunov Systems
Murty, Madhunapantula Suryanarayana,Kumar, Grande Suresh Department of Mathematics 2008 Kyungpook mathematical journal Vol.48 No.3
In this paper we generate a fuzzy dynamical matrix Lyapunov system and obtain a sufficient condition for the observability of this system.
Murty, M.S.N.,Kumar, G. Suresh Korean Mathematical Society 2008 대한수학회지 Vol.45 No.5
This paper deals with the study of dichotomy and conditioning for two-point boundary value problems associated with first order matrix Lyapunov systems, with the help of Kronecker product of matrices. Further, we obtain close relationship between the stability bounds of the problem on one hand, and the growth behaviour of the fundamental matrix solution on the other hand.
A Community and University Partnership for Rural Community Development
Murty, Susan 한국국제지역사회개발학회 2001 地域社會開發學術誌 Vol.11 No.1
A School of Social Work has developed an innovative partnership with a rural midwestern community 15 miles away which has a diverse population. Faculty and students have built relationships with community leaders and participated in a variety of community projects and learning experiences. Results of prelimninary evaluation show that the partnership has enriched the curriculum of the School and in turn has contributed to the community's development efforts.