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  • ThesisItemOpen Access
    A study of thermo-magnetic effects on static state of cholesteric liquid crystal between two hot co-axial circular cylinders
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2009-06) Gangwar, Sukhdev Singh; Sharma, A.K.
    Liquid crystal the fourth state of matter is observed between the crystalline solid and amorphous liquid states. It exihibits the properties of liquids as well as that of crystalline solid state. In the present study we have considered an infinite static layer of cholesteric liquid crystal lying between two infinite hot co-axial circular cylinders in the presence of azimuthal magnetic field when both the cylinders are held at different temperatures and are lying at rest. We have examined the thermo-magnetic effects in this problem. After obtaining the system of governing differential equations we have solved it numerically by Newton Raphson method. The results are then graphically plotted. It has been observed that orientation of molecules varies with the variation of magnetic field and temperature gradient parameters.
  • ThesisItemOpen Access
    Velocity and heat transfer CNTs-H2O Nanofluid flow
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2019-11) Gautam, Ajay Kumar; Manoj Kumar
    Recent work deals with the problem pertinent to investigate the heat transfer and velocity of nanofluid flow over a bidirectional stretchable in the presence of several various physical parameters like non-linear thermal radiation, non-uniform heat source/sink, Ohmic heating and magnetic parameter. The effects of these parameters and governing factors in the boundary layer flow effects on the velocity and temperature profile, graphically it is represented as well as solved numerically and these numerical values are represented in the tabular form. In the study of this problem the dimensionless quantities such as rate of heat transfer (Nusselt number) and skin friction coefficient have been computed. The present thesis consists of five chapters. The first chapter contains the introduction part of various physical parameters, basic information of fluid mechanics and other various concepts. In chapter two, the review of some published researches has been concluded for the present study. Chapter three consists of numerical solutions of some physical parameters, governing equations and some appropriate transformations has been done. The whole methodology is used for solving the problem and getting description in detailed. And the presentation of numerical solution has been obtained in this chapter. Chapter four contains the results and discussion of the present problem. And in chapter five the problem is summarized, along with the phenomenon of finding the study which is included in the section literature cited. The present study can be helpful in the related field of applied scientific and different branch of engineering and applied mathematics.
  • ThesisItemOpen Access
    Fixed point theorems on complete intuitionistic fuzzy metric space under contractive and weakly compatible mapping
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2019-07) Sharma, Vaibhav; Sanjay Kumar
    In the present research work fixed point theorems due to Mellaini et al. (2019) and Hu et al. (2013) are proved in intuitionistic fuzzy metric space under contractive and weakly compatible mapping. The work is presented in five chapters. Chapter one focuses on the basic preliminaries and definitions related to metric spaces, fuzzy metric spaces, intuitionistic fuzzy metric spaces, contractive mapping, and fixed point. Chapter two presents a review of the literature which is studied during the proposed work. In chapter three definition of contractive mapping is extended into intuitionistic fuzzy metric space. Fixed point theorems due to Mellaini et al. (2019) and Hu et al. (2013) are proved in this chapter. In chapter four, the theorems proved are supported by few examples. A corollary related to the fixed point theorem under weakly compatible mapping is also drawn. Chapter five summarizes the work in brief along with the conclusions. The literature used in the course of the study has been referred under the section of literature cited.
  • ThesisItemOpen Access
    Behavior and mood prediction of human by signature and facial expression analysis
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2019-06) Punetha, Neha; Pal, A.K.
    Present work entitled “BEHAVIOR AND MOOD PREDICTION OF HUMAN BY SIGNATURE AND FACIAL EXPRESSION ANALYSIS” treated the issue of developing a system which generates future values and personality and mood prediction system based on signature and facial expression analysis of human. First need is to train the network and then the network will give a result. The presented study consist of five chapters, the first chapter is directed to justify the elementary need of introducing Artificial Neural Network, Pattern Recognition, Facial Expression Recognition, and Signature Analysis the use of the neural network in behavior prediction. Chapter two comprise the majority of passed research work linked with present work. Chapter three consists of the material and methods used for the existing study. We have presented the neural network for the behavior prediction and simulated it in MATLAB software. Chapter four refers to the results and discussion of the study taken in chapter three. The work has been summarized in chapter five. Along with the study, and the literature used in the course of the study has been referred under the section of literature mentioned. The associated study may be helpful for the personality and mood prediction of human.
  • ThesisItemOpen Access
    Reliability modelling of replaceable interconnection networks using interval valued universal generating function
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2019-07) Khati, Amisha; Singh, S.B.
    In this research work, authoress has developed two different models which are given as: 1. Reliability assessment of replaceable shuffle exchange network (SEN) by using interval valued universal generating function. 2. Reliability assessment of replaceable shuffle exchange network (SEN+) applying interval valued universal generating function. In both the models, we have assumed that the networks are having uncertainties and the failed components of both the networks can be replaced unlike done in the past. The reliability assessment of both networks was done by using the method of IUGF. In the first model, an 8×8 replaceable SEN possessing different uncertainties was considered. The reliability block diagram of the terminal, broadcast and network reliability of SEN was presented. In order to overcome the uncertainties, probabilities bounds have to be used which were evaluated by using supplementary variable technique and Laplace transform. The bounds of the three reliabilities of the SEN were computed along with their MTTF bounds. In the second model, we have considered an 8×8 replaceable SEN+ having uncertainties. The reliability block diagram of the terminal, broadcast and network reliability of the considered SEN+ was presented and its modelling corresponding to each reliability measure was done by applying supplementary variable technique to it. Then by employing Laplace transform, various probability bounds were evaluated and subsequentially the reliability bounds and their MTTF bounds were computed.
  • ThesisItemOpen Access
    A study on effects of uniform magnetic field on flow of cholesteric liquid crystals between two relativaly moving parallel hot plates
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2004-06) Meena Kumari; Sharma, A.K.
    A study has been conducted on the flow of an incompressible cholesteric liquid crystals with director of unit magnitude between two infinite relatively moving parallel hot plates with the objective: To examine the effects of uniform magnetic field in (x,y,z) directions in the plane of the lower plate which is at rest while the upper plate is motion with a uniform horizontal velocity and the two plates are maintained at different temperature. Differential equations governing the two components of horizontal velocity ( u) and (v) , orientations of directors (θ ) and (Φ) have been formed and solved by using couple stress boundary conditions. In the solution of these equations, we observe that there is no effect of magnetic field on the two velocity components, but they increase with the increase in thermal gradient parameter (E1).The effect of magnetic field on the orientation of molecules (θ) and (Φ) causes variation in their profile.
  • ThesisItemOpen Access
    A study on effects of uniform magnetic field on flow of cholesteric liquid crystals between two relativaly moving parallel hot plates
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2004-06) Meena Kumari; Sharma, A.K.
    A study has been conducted on the flow of an incompressible cholesteric liquid crystals with director of unit magnitude between two infinite relatively moving parallel hot plates with the objective: To examine the effects of uniform magnetic field in (x,y,z) directions in the plane of the lower plate which is at rest while the upper plate is motion with a uniform horizontal velocity and the two plates are maintained at different temperature. Differential equations governing the two components of horizontal velocity ( u) and (v) , orientations of directors (θ ) and (Φ) have been formed and solved by using couple stress boundary conditions. In the solution of these equations, we observe that there is no effect of magnetic field on the two velocity components, but they increase with the increase in thermal gradient parameter (E1).The effect of magnetic field on the orientation of molecules (θ) and (Φ) causes variation in their profile.
  • ThesisItemOpen Access
    Mathematical modeling of impact evaluation and phytoremediation of pulp and paper industry effluent
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2004-06) Sanjeev Kumar; Dube, K.K.
    The problem of pollution as a consequence of increased industrialization is, by now, a well-known phenomenon. In case of pollution in water, the problem is more serious. Not only industrial wastes, but also discharge of domestic waste water and sewage can be major pollutant. In present investigation three mathematical models first on the impact of pulp and paper mill effluent on soil microbial biomass, second on the effluent impact on soil microbial activities and third on phytoremediation of pulp and paper mill effluent employing Eichhornia crassipes have been developed. In first and second models the variates taken into consideration decreased exponentially with increase in the distance from the source of pollution, whereas in the third model similar decrease was observed with the increase in duration of phytoremediation. The former two models are valid for only point source pollution impact and not for non-point source pollution where varieties of unknown factors contribute towards ill impact of pollutants. The third model is equally prominent for devising technique to get rid off the ill impact of the industrial effluent. The mathematical model presented here provides a fairly accurate prediction of the ill impact of pollutant present in pulp and paper mill effluent and its remedial measure employing plant like Eichhornia crassipes. These models could be used for predicting the ill impact of other industrial waste water and their removal through phytoremediation technique, as well.
  • ThesisItemOpen Access
    Intuitionistic fuzzy rule based modelling to study few psychological parameters
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2018-08) Gupta, Virendra; Sanjay Kumar
    Unlike fuzzy set, Intuitionistic fuzzy set (IFS) uses separate functions for membership and non-membership grade. Hence, IFS is considered more ideal tool than fuzzy set to handle non-determinism along with uncertainty. In the present study, we have developed an intuitionistic fuzzy rule based model for predicting anxiety level of students using extraversion and motivation. Participants in the present study are 22 students from the department of physics, chemistry and mathematics. In this study, we also compare performance of IFS rule based model with the performance of earlier fuzzy rule based model, ANFIS model and hybrid models. The chapter 1 describes the basic preliminaries of fuzzy sets, IFS and basic terminology of psychology. It also contains the description of problem undertaken. A brief review of past research work in the area of fuzzy logic, intuitionistic fuzzy sets, psychology and cognitive science have been presented in chapter 2. The chapter 3 comprehensively describes the various material (collection of data through Maudsley Personality Inventory questionnaire) and method that is being used in the duration of course of investigation. The results obtained have been placed in chapter 4 and this chapter also includes comparison with the results obtained output by fuzzy method, ANFIS and Genetic Algorithm method. The works have been summarized in chapter 5. The literature used in the course of study has been referred under section literature cited.