mousumi saha - Academia.edu (original) (raw)

Papers by mousumi saha

Research paper thumbnail of An Efficient Auction Based TATKAL Scheme for Indian Railway

... Nivedita Mukherjee Final Year Student Department of Information Technology NIT Durgapur India... more ... Nivedita Mukherjee Final Year Student Department of Information Technology NIT Durgapur India,713209 Email: nivedita211@gmail.com ... Prasenjit Choudhury Faculty Department of Computer Application NIT, Durgapur India,713209 Email:prasenjit0007@yahoo.co.in ...

Research paper thumbnail of SL(3) algebra, reduction problem, new integrable system and dressing approach

Inverse Problems, 2000

The reduction technique is used in conjunction with SL (3) algebra to generate a new nonlinear Kl... more The reduction technique is used in conjunction with SL (3) algebra to generate a new nonlinear Klein-Gordon-type integrable system. The corresponding inverse problem is solved with the help of the dressing operator approach. The same method is also suitable to discuss the hidden symmetries of the system.

Research paper thumbnail of LETTER TO THE EDITOR: Dodd-Bullough equation, boundary condition and nonlocal conservation laws

Journal of Physics A-mathematical and General, 1999

We have reconsidered the integrability of the Dodd-Bullough equation in the presence of the bound... more We have reconsidered the integrability of the Dodd-Bullough equation in the presence of the boundary condition. It is shown that the boundary condition itself can be deduced from the Lax equation. The forms of the infinite number of nonlocal conservation laws are shown to change due to the presence of the boundary condition.

Research paper thumbnail of Supersymmetric Integrable Systems in (2 + 1) Dimensions and Their Backlund Transformation

International Journal of Theoretical Physics, 1999

Nonlinear integrable systems in (2 + 1)dimensions which are supersymmetric are generated in twodi... more Nonlinear integrable systems in (2 + 1)dimensions which are supersymmetric are generated in twodifferent ways. In one approach the homogeneous spacesof super-Lie algebra are used, and in the other we use a different technique of extending thedimension of the system. The two sets of equations turnout to be different. The methodologies ofDarbux–Backlund transformation and gaugetransformation are used to generate the Backlund transformations ofthese equations. An important result of our analysis isthe existence of purely fermionic nonlinear systems in(2 + 1) dimensions.

Research paper thumbnail of New hierarchy of integrable system bi-Hamiltonian structure and constrained flows

Chaos Solitons & Fractals, 2000

ABSTRACT

Research paper thumbnail of Geodesic Deviation Equation, Gödel Metric and Inverse Scattering

Physica Scripta, 2000

Equations for geodesic deviation (GDE) are deduced for the space-time metric of Gödel type. The e... more Equations for geodesic deviation (GDE) are deduced for the space-time metric of Gödel type. The equation turns out to be a matrix Schrödinger problem. It is then demonstrated that one can generate nonlinear equations for the coefficient functions of the metric if a ``time'' evolution equation is adjoined to the GDE. Soliton like solutions for the metric functions can be obtained through an inverse scattering transform of the matrix Schrödinger problem. Thereby a solution of the GDE equation is also determined by the wave function of the IST.

Research paper thumbnail of Evaluation of branch predictors targeting easeful diagnosis of design inaccuracies

The design inaccuracy (fault) in predictors can cause huge power loss in processor posing serious... more The design inaccuracy (fault) in predictors can cause huge power loss in processor posing serious threat to the designers. The objective of the current analysis of fault impact on the processor power consumption is to devise a methodology for diagnosis of the faulty module in a branch predictor. It is effectively the first step for identification of DPL (design to

Research paper thumbnail of A cellular automata based high speed test hardware for word-organized memories

Memories are the most defect sensitive parts in a machine computer. Conventionally, variations of... more Memories are the most defect sensitive parts in a machine computer. Conventionally, variations of March test are extensively used for functional test of SRAMs and DRAMs. In this work, we propose a CA (Cellular Automata) based scheme for efficient implementation of March test with the target to realize fault detection in high speed memories. The special class of CA referred to as the SACA is used for the purpose. The regular structure of CA enables low cost implementation of test logic for the memory chip that is inherently regular in structure. Utilization of the existing memory cells, while designing the CA based test logic, ensures drastic reduction in the test overhead.

Research paper thumbnail of Synthesis of Reversible Universal Logic around QCA with Online Testability

Quantum-dot Cellular Automata (QCA) can be a viable technology for CMPs (chip multi-processors) w... more Quantum-dot Cellular Automata (QCA) can be a viable technology for CMPs (chip multi-processors) with thousands of processors. The QCA based reversible logic promises energy efficient design of the digital circuits. However, the requirement of excessive logic gates as well as its high defect rate limit the performance of a QCA based design. This work proposes a new approach to synthesize the reversible universal QCA logic gate (RUG) with the target to reduce the garbage outputs as well as the number of logic gates to realise a design simultaneously ensuring the defect tolerance. A concurrent error detection methodology is introduced to support the online testing of a circuit designed around the RUG. The experimental designs establish that the RUG can ensure an energy saving cost effective realization of testable QCA circuits.

Research paper thumbnail of An Efficient Auction Based TATKAL Scheme for Indian Railway

... Nivedita Mukherjee Final Year Student Department of Information Technology NIT Durgapur India... more ... Nivedita Mukherjee Final Year Student Department of Information Technology NIT Durgapur India,713209 Email: nivedita211@gmail.com ... Prasenjit Choudhury Faculty Department of Computer Application NIT, Durgapur India,713209 Email:prasenjit0007@yahoo.co.in ...

Research paper thumbnail of SL(3) algebra, reduction problem, new integrable system and dressing approach

Inverse Problems, 2000

The reduction technique is used in conjunction with SL (3) algebra to generate a new nonlinear Kl... more The reduction technique is used in conjunction with SL (3) algebra to generate a new nonlinear Klein-Gordon-type integrable system. The corresponding inverse problem is solved with the help of the dressing operator approach. The same method is also suitable to discuss the hidden symmetries of the system.

Research paper thumbnail of LETTER TO THE EDITOR: Dodd-Bullough equation, boundary condition and nonlocal conservation laws

Journal of Physics A-mathematical and General, 1999

We have reconsidered the integrability of the Dodd-Bullough equation in the presence of the bound... more We have reconsidered the integrability of the Dodd-Bullough equation in the presence of the boundary condition. It is shown that the boundary condition itself can be deduced from the Lax equation. The forms of the infinite number of nonlocal conservation laws are shown to change due to the presence of the boundary condition.

Research paper thumbnail of Supersymmetric Integrable Systems in (2 + 1) Dimensions and Their Backlund Transformation

International Journal of Theoretical Physics, 1999

Nonlinear integrable systems in (2 + 1)dimensions which are supersymmetric are generated in twodi... more Nonlinear integrable systems in (2 + 1)dimensions which are supersymmetric are generated in twodifferent ways. In one approach the homogeneous spacesof super-Lie algebra are used, and in the other we use a different technique of extending thedimension of the system. The two sets of equations turnout to be different. The methodologies ofDarbux–Backlund transformation and gaugetransformation are used to generate the Backlund transformations ofthese equations. An important result of our analysis isthe existence of purely fermionic nonlinear systems in(2 + 1) dimensions.

Research paper thumbnail of New hierarchy of integrable system bi-Hamiltonian structure and constrained flows

Chaos Solitons & Fractals, 2000

ABSTRACT

Research paper thumbnail of Geodesic Deviation Equation, Gödel Metric and Inverse Scattering

Physica Scripta, 2000

Equations for geodesic deviation (GDE) are deduced for the space-time metric of Gödel type. The e... more Equations for geodesic deviation (GDE) are deduced for the space-time metric of Gödel type. The equation turns out to be a matrix Schrödinger problem. It is then demonstrated that one can generate nonlinear equations for the coefficient functions of the metric if a ``time'' evolution equation is adjoined to the GDE. Soliton like solutions for the metric functions can be obtained through an inverse scattering transform of the matrix Schrödinger problem. Thereby a solution of the GDE equation is also determined by the wave function of the IST.

Research paper thumbnail of Evaluation of branch predictors targeting easeful diagnosis of design inaccuracies

The design inaccuracy (fault) in predictors can cause huge power loss in processor posing serious... more The design inaccuracy (fault) in predictors can cause huge power loss in processor posing serious threat to the designers. The objective of the current analysis of fault impact on the processor power consumption is to devise a methodology for diagnosis of the faulty module in a branch predictor. It is effectively the first step for identification of DPL (design to

Research paper thumbnail of A cellular automata based high speed test hardware for word-organized memories

Memories are the most defect sensitive parts in a machine computer. Conventionally, variations of... more Memories are the most defect sensitive parts in a machine computer. Conventionally, variations of March test are extensively used for functional test of SRAMs and DRAMs. In this work, we propose a CA (Cellular Automata) based scheme for efficient implementation of March test with the target to realize fault detection in high speed memories. The special class of CA referred to as the SACA is used for the purpose. The regular structure of CA enables low cost implementation of test logic for the memory chip that is inherently regular in structure. Utilization of the existing memory cells, while designing the CA based test logic, ensures drastic reduction in the test overhead.

Research paper thumbnail of Synthesis of Reversible Universal Logic around QCA with Online Testability

Quantum-dot Cellular Automata (QCA) can be a viable technology for CMPs (chip multi-processors) w... more Quantum-dot Cellular Automata (QCA) can be a viable technology for CMPs (chip multi-processors) with thousands of processors. The QCA based reversible logic promises energy efficient design of the digital circuits. However, the requirement of excessive logic gates as well as its high defect rate limit the performance of a QCA based design. This work proposes a new approach to synthesize the reversible universal QCA logic gate (RUG) with the target to reduce the garbage outputs as well as the number of logic gates to realise a design simultaneously ensuring the defect tolerance. A concurrent error detection methodology is introduced to support the online testing of a circuit designed around the RUG. The experimental designs establish that the RUG can ensure an energy saving cost effective realization of testable QCA circuits.