Browsing by Author "Mukhopadhyay, A."
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Item Active Upper Arm Exoskeleton - Design and Kinematic Analysis(2019) Santra, P.; Mukhopadhyay, A.; Debnath, B.; Herbert, M.A.; Bhaumik, S.The authors present a design of an exoskeleton with 6 active degrees of freedom (DOF) and 5 passive DOFs for rehabilitation of stroke survivors. Emphasis has been laid on making the model light weight and more ergonomic. Thus, concentration is mainly on 3D modeling of that device so that the mechatronic approach is compatible with human hand. The main choice of material for fabrication has been Nylon 6/10, owing to its lightweight and durable properties. The model was developed completely by the use of Computer Aided Design (CAD) and Computer Aided Engineering (CAE). Our model focuses on proposing a new actuation principle for better development of ergonomic shoulder design by incorporation of compliant passive springs and one passive revolute joint. Joints of the exoskeleton have been taken as simple revolute, possessing desired motion limits. Also forward kinematics has been established and the general workspace of the model has been developed. � 2019 IEEE.Item Active Upper Arm Exoskeleton - Design and Kinematic Analysis(Institute of Electrical and Electronics Engineers Inc., 2019) Santra, P.; Mukhopadhyay, A.; Debnath, B.; Herbert, M.A.; Bhaumik, S.The authors present a design of an exoskeleton with 6 active degrees of freedom (DOF) and 5 passive DOFs for rehabilitation of stroke survivors. Emphasis has been laid on making the model light weight and more ergonomic. Thus, concentration is mainly on 3D modeling of that device so that the mechatronic approach is compatible with human hand. The main choice of material for fabrication has been Nylon 6/10, owing to its lightweight and durable properties. The model was developed completely by the use of Computer Aided Design (CAD) and Computer Aided Engineering (CAE). Our model focuses on proposing a new actuation principle for better development of ergonomic shoulder design by incorporation of compliant passive springs and one passive revolute joint. Joints of the exoskeleton have been taken as simple revolute, possessing desired motion limits. Also forward kinematics has been established and the general workspace of the model has been developed. © 2019 IEEE.Item Disaster Risk Science and Technology: Addressing Cross-Cutting Challenges(Springer Science and Business Media Deutschland GmbH, 2023) Pal, I.; Kolathayar, S.; Islam, S.T.; Mukhopadhyay, A.; Ahmed, I.; Ganni, G.S.V.S.A.[No abstract available]Item On the explicit Galois group of Q(a1,a2,⋯,an,ζd) over Q(Springer Science and Business Media Deutschland GmbH, 2024) Karthick Babu, C.G.; Mukhopadhyay, A.; Sahu, S.Let S={a1,a2,⋯,an} be a finite set of non-zero integers. In [5], Karthick Babu and Anirban Mukhopadhyay calculated the explicit structure of the Galois group of multi-quadratic field Q(a1,a2,⋯,an) over Q. For a positive integer d⩾3, ζd denotes the primitive d-th root of unity. In this paper, we calculate the explicit structure of the Galois group of Q(a1,a2,⋯,an,ζd) over Q in terms of its action on ζd and ai for 1⩽i⩽n. © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2024.