Response to Comment on “Long-Lived Giant Number Fluctuations in a Swarming Granular Nematic" (2008)
Narayan, V, Ramaswamy, S, Menon, N
On the basis of experiments using monolayers of spherical grains, Aranson et al. suggest that the giant number fluctuations we observed in active granular rods may be explained by static...
Shear-flow–induced isotropic-to-nematic transition in a suspension of active filaments (2007)
Muhuri, S., Rao, Madan, Ramaswamy, S.
Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations)
Ferraro, Daniel J, Brown, Eric N, Yu, Chi-Li, Parales, Rebecca E, Gibson, David T, Ramaswamy, S
Abstract Background The initial step involved in oxidative hydroxylation of monoaromatic and polyaromatic compounds by the microorganism Sphingobium yanoikuyae strain B1 (B1), previously known as...
Ferraro, Daniel J, Brown, Eric N, Yu, Chi-Li, Parales, Rebecca E, Gibson, David T, Ramaswamy, S
Abstract Background The initial step involved in oxidative hydroxylation of monoaromatic and polyaromatic compounds by the microorganism Sphingobium yanoikuyae strain B1 (B1), previously known as...
Superdiffusion of concentration in wormlike-micelle solutions (2007)
Ganapathy, R, Sood, AK, Ramaswamy, S
Our dynamic light scattering studies of viscoelastic wormlike-micelle solutions of surfactant cetyltrimethyl ammonium tosylate (CTAT) show superdiffusive relaxation of concentration fluctuations:...
Shear-flow–induced isotropic-to-nematic transition in a suspension of active filaments (2007)
Muhuri, S, Rao, M, Ramaswamy, S
We study the effects of externally applied shear flow on a model of suspensions of motors and filaments, via the equations of active hydrodynamics (Phys. Rev. Lett., 89 (2002) 058101; 92 (2004)...
Dai, Shaodong, Eklund, Hans, Schürmann, Peter, Ramaswamy, S, Johansson, Kenth, Schwendtmayer, Cristina
A pre-requisite for life on earth is the conversion of solar energy into chemical energy by photosynthetic organisms. Plants and photosynthetic oxygenic microorganisms trap the energy from sunlight...
Dai, Shaodong, Eklund, Hans, Schürmann, Peter, Ramaswamy, S, Johansson, Kenth, Schwendtmayer, Cristina
A pre-requisite for life on earth is the conversion of solar energy into chemical energy by photosynthetic organisms. Plants and photosynthetic oxygenic microorganisms trap the energy from sunlight...
Antinociceptive activity of certain dihydroxy flavones (2006)
Umamaheswari, S, Viswanathan, S, Sathiyasekaran, B, Parvathavarthini, S, Ramaswamy, S
New microwave methods for rapid quantitative and qualitative analysis and loss on drying (2005)
Badami, S, Ramaswamy, S, Sharma, S, Choksi, R, Dongre, S, Suresh, B
Flow-induced voltage and current generation in carbon nanotubes (2004)
Ghosh, Shankar, Sood, A.K., Ramaswamy, S., Kumar, N.
New experimental results, and a plausible theoretical understanding thereof, are presented for the flow-induced currents and voltages observed in single-walled carbon nanotube samples. In our...
Flow-induced voltage and current generation in carbon nanotubes (2004)
Ghosh, S., Sood, A. K., Ramaswamy, S., Kumar, N.
New experimental results, and a plausible theoretical understanding thereof, are presented for the flow-induced currents and voltages observed in single-walled carbon nanotube samples. In our...
Flow-induced voltage and current generation in carbon nanotubes (2004)
Ghosh, S, Sood, AK, Ramaswamy, S, Kumar, N
New experimental results, and a plausible theoretical understanding thereof, are presented for the flow-induced currents and voltages observed in single-walled carbon nanotube samples. In our...
Active nematics on a substrate: Giant number fluctuations and long-time tails (2003)
Ramaswamy, S, Simha, Aditi R, Toner, J
We construct the equations of motion for the coupled dynamics of order parameter and concentration for the nematic phase of driven particles on a solid surface, and show that they imply i) giant...
Driven Heisenberg magnets: Nonequilibrium criticality, spatiotemporal chaos and control (2002)
Das, Jayajit, Rao, Madan, Ramaswamy, S.
Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations)
A Three-Tier Communication and Control Structure for the Distributed (2002)
R. Maarfi, E. L. Brown, S. Ramaswamy
This paper presents an Automated Highway Simulation using a hierarchy of communication to resolve advanced traffic situations. The simulation is being done to study communication paradigms, traffic...
Fixed dose combinations and rational drug therapy (2001)
Pradhan, S, Shewade, D, Ramaswamy, S, Kastury, N, Singh, S, Ansari, K
S. Ramaswamy, K. Srinivasan, P. K. Rajan, S. Krishnamurthy, R. Macfadzean
this paper, a two-level architecture is developed and implemented for the interactive simulation and evaluation of a distributed agent-based simulation environment designed to detect and resolve...
Implementation and Evaluation of a Dynamic Protocol for Interference Resolution in Naval (2001)
S. Krishnamurthy, S. Ramaswamy, P. K. Rajan
Radars are widely used in a variety of applications including communications, defense systems, air traffic control, etc. Previous work [1-4] by our group detailed the need for automated negotiation...
Complex Negotiation Protocols For A Distributed Simulation (2001)
V. Ramachandran, S. Ramaswamy, P. K. Rajan
EMCAP (Electromagnetic Compatibility Analysis Program) is a PC based program used by U.S Navy to assign system frequencies to radars in a single platform or in a group. The central frequency manager...
Active Membrane Fluctuations Studied by Micropipet Aspiration (2001)
Manneville, J-B., Bassereau, P., Ramaswamy, S., Prost, J.
We present a detailed analysis of the micropipet experiments recently reported in J-B. Manneville et al., Phys. Rev. Lett. 82, 4356--4359 (1999), including a derivation of the expected behaviour of...
Active membrane fluctuations studied by micropipet aspiration (2001)
Manneville, JB, Bassereau, P, Ramaswamy, S, Prost, J
We present a detailed analysis of the micropipet experiments recently reported by J-B. Manneville et al., [Phys. Rev. Lett. 82, 4356 (1999)], including a derivation of the expected behavior of the...
In this paper, a Petri net based approach for establishing the minimal design and testing requirements for software systems is presented. It is based on a technique called the minimal transition...
K. S. Barber, T. H. Liu, A. Goel, S. Ramaswamy
Planning and control systems for highly dynamic and uncertain manufacturing environments require adaptive flexibility and decision-making capabilities. Modern distributed manufacturing systems assess...
: In last year's conference, a two-level architecture for the implementation of a distributed simulation environment for interference detection and frequency assignment in naval radar units [1]. In...
A Two-level Distributed Interactive Simulation Architecture for Radar Frequency Assignment (2000)
K. Srinivasan, J. Cherry, N. D. Cannon, T. Scalf, S. Ramaswamy
: This paper presents a two-level architecture for the implementation of a distributed simulation environment for interference detection and frequency assignment in naval radar units. The Java-based...
In this paper, an agent-based design and development of an interactive virtual environment for a manufacturing assembly process is described. Agents in the assembly are identified through their...
VERAM: Virtual Environments for Education, Robotics, Automation and Manufacturing (2000)
: The objective of this research is to explore virtual environments in education, robotics automation and manufacturing (VERAM). The grant provides funding for the purchase of equipment necessary for...
Flexible Reasoning Using Sensible Agent-based Systems: A Case Study in Job Flow Scheduling (2000)
K. S. Barber, T. H. Liu, A. Goel, S. Ramaswamy
Planning and control systems for highly dynamic and uncertain manufacturing environments require adaptive flexibility and decision-making capabilities. Modern distributed manufacturing systems assess...
A Design Architecture For The Modeling, Analysis And Design Of Manufacturing Control Software (2000)
There exist a variety of system specification and modeling tools for systems analysis and design which are essentially independent of one another. Although these tools are used for analyzing well...
Intelligent Coordinating Entities Based Control Software Design (2000)
: Software systems designed to be distributed, interactive and intelligent (in a domainspecific sense), with ubiquitous human interfaces and the ability to exhibit intelligent cooperative behaviors...
A. Basu, J. K. Bhattacharjee, S. Ramaswamy
. We show that a recently proposed [J. Fleischer, P.H. Diamond, Phys. Rev. E 58, R2709 (1998)] one-dimensional Burgers-like model for magnetohydrodynamics (MHD) is in e#ect identical to existing...
PCS Network Survivability (1999)
Research and development on the survivability of networks has largely focused on public switched telecommunications networks and high speed data networks with little attention on the survivability of...
Evaluation of on-Line Schedules By Distributed Simulation (1999)
S. R. Jernigan, S. Ramaswamy, K. S. Barber
A new algorithm for the distributed simulation and evaluation of on-line schedules is presented. Generally, on-line scheduling has often been restricted to scheduling activities on a single machine...
S. R. Jernigan, S. Ramaswamy, K. S. Barber
On-line scheduling has traditionally been restricted to a single machine or workcell. In this paper, a distributed simulation technique for on-line scheduling is expanded to encompass several...
A Distributed Search and Simulation Method for Job Flow Scheduling (1999)
S. R. Jernigan, S. Ramaswamy, K. S. Barber
Simulation serves as an effective decision support tool in flexible manufacturing systems for understanding and analyzing the effect of changes to the system environment. Due to the variety of...
A Virtual Environment For Construction And Analysis Of Manufacturing Prototypes (1999)
Christopher J. Chuter, S. Ramaswamy, K. S. Barber
The building of a virtual environment for the construction, analysis, and design of a three dimensional virtual manufacturing prototype is discussed. An agent-based framework is used to specify the...
K. S. Barber, A. Goel, T. J. Graser, T. H. Liu, R. H. Macfadzean, C. E. Martin, ...
The practical deployment of distributed agent-based systems mandates that each agent behave sensibly. This paper focuses on the development of flexible, responsive, adaptive systems based on Sensible...
Extended Statecharts: A Specification Formalism for High Level Design (1999)
A. Suraj, S. Ramaswamy, K. S. Barber
This paper introduces Extended Statecharts as a comprehensive modeling mechanism for high level systems design. Extended Statecharts allow for the explicit representation of declarable...
Model development of MIMO Nets: A H-EPN Based Approach (1999)
S. Ramaswamy, K. P. Valavanis, S. Barber
The construction and analysis of Multiple Input Multiple Output (MIMO) subnets is discussed. It is shown that Hierarchical TimeExtended Petri Nets (H-EPNs) allow the development of structured MIMO...
K. S. Barber, T. H. Liu, A. Goel, S. Ramaswamy
Planning and control systems for highly dynamic and uncertain manufacturing environments require adaptive flexibility and decision-making capabilities. Modern distributed manufacturing systems assess...
Object-Oriented Analysis, Modeling, and Simulation of a Notional Air Defense System (1999)
Bernard T. Barcio, S. Ramaswamy, Robert Macfadzean, K. S. Barber
This paper describes the analysis, modeling, and simulation of a notional air defense system using SMOOCHES (State Machines for Object-Oriented, Concurrent, Hierarchical Engineering Specifications)....
A High Level Specification Mechanism for the Analysis and Design of Manufacturing Systems (1999)
In this paper, a structured development approach to deriving system models that helps to better understand and represent system details is presented. Real-world systems are never completely designed...
S. Ramaswamy, A. Suraj, K. S. Barber
Finite state machines and their extensions are widely used for system modeling and analysis. Often, the models themselves do not provide much insight into critical system areas which need to be...
Modeling Atm Networks In A Parallel Simulation Environment: A Case Study (1999)
P. Gburzynski, T. Ono-tesfaye, S. Ramaswamy
This paper describes our experience with implementing an Asynchronous Transfer Mode (ATM) network simulator in the high-level sequential programming language SMURPH [Dobosiewicz and Gburzynski 93],...
An Object-Oriented Modeling and Simulation Environment for Reactive Systems Development (1999)
Bernard T. Barcio, S. Ramaswamy, K. Suzanne Barber
An environment to support the modeling, analysis, simulation, and development of state transition models, SMOOCHES (State Machines for Object-Oriented Concurrent Hierarchical Engineering...
A. Suraj, S. Ramaswamy, K. S. Barber
Building software systems that are easier to use implies addressing the issue of increasing complexities in managing processes and communication between processes. In order to manage complexity, it...
This paper models, analyzes, accommodates and simulates potential failures which may occur in a materials handling system with Extended Petri nets (EPNs). EPNs are shown to be able to cope with...
Object-Oriented Analysis, Modeling, and Simulation of a Notional Air Defense System (1999)
Bernard T. Barcio, S. Ramaswamy, Robert Macfadzean, K. S. Barber
This paper describes the analysis, modeling, and simulation of a notional air defense system using SMOOCHES (State Machines for Object-Oriented, Concurrent, Hierarchical Engineering Specifications)....
OARS: An Object-Oriented Architecture for Reactive Systems (1999)
Bernard T. Barcio, S. Ramaswamy, K. S. Barber
1 - This paper discusses an architecture designed to provide support for the development of state transition models for an object-oriented distributed environment. The state transition models can be...
Model development of MIMO Nets: A H-EPN Based Approach (1999)
S. Ramaswamy, K. P. Valavanis, S. Barber
The construction and analysis of Multiple Input Multiple Output (MIMO) subnets is discussed. It is shown that Hierarchical TimeExtended Petri Nets (H-EPNs) allow the development of structured MIMO...
Object-Oriented Analysis, Modeling, and Simulation of a Notional Air Defense System* (1999)
Bernard T. Barcio, S. Ramaswamy, Robert Macfadzean, K. S. Barber
This paper describes the analysis, modeling, and simulation of a notional air defense system using SMOOCHES (State Machines for Object-Oriented, Concurrent, Hierarchical Engineering Specifications) ....
An Approach for Monitoring and Control of Agent-based Systems (1999)
S. Ramaswamy, A. Suraj, K. S. Barber
Finite state machines and their extensions are widely used for system modeling and analysis. Often, the models themselves do not provide much insight into critical system areas which need to be...
A Virtual Environment For Construction And Analysis Of Manufacturing Prototypes* (1999)
Christopher J. Chuter, S. Ramaswamy, K. S. Barber
The building of a virtual environment for the construction, analysis, and design of a three dimensional virtual manufacturing prototype is discussed. An agent-based framework is used to specify the...
Radar Frequency Assignment in Mobile Radar Units (1999)
Robert Macfadzean, S. Ramaswamy, K. S. Barber
This paper presents a case study based on a radar interference control problem using frequency assignment as the control mechanism. The results suggest that locally autonomous agents will generally...
Basappa, G, Suneel, *, Kumaran, V, Nott, PR, Ramaswamy, S, Naik, VM, ...
We present important new results from light-microscopy and rheometry on a moderately concentrated lyotropic smectic, with and without particulate additives, Shear-treatment aligns the phase rapidly,...
Basu, A, Bhattacharjee, JK, Ramaswamy, S
We show that a recently proposed [J. Fleischer, P.H. Diamond, Phys. Rev. E 58, R2709 (1998)] one-dimensional Burgers-like model for magnetohydrodynamics (MHD) is in effect identical to existing...
A Distributed Search and Simulation Method for Job Flow Scheduling (1998)
S. R. Jernigan, S. Ramaswamy, K. S. Barber
Simulation serves as an effective decision support tool in flexible manufacturing systems for understanding and analyzing the effect of changes to the system environment. Due to the variety of...
ATM Cell Scheduling Using Adaptive Feedback Control (1997)
We present a control theory based approach to scheduling departing cells in an ATM switch. With our approach, queue service rates fluctuate within some limits, maintaining the QoS at the desired...
ATM Cell Scheduling Using Adaptive Feedback Control (1997)
We present a control theory based approach to scheduling departing cells in an ATM switch. With our approach, queue service rates fluctuate within some limits, maintaining the QoS at the desired...
August 14, 1996 PARADIGM Bibliography 3 (1997)
S. Ramaswamy, S. Sapatnekar, P. Banerjee, A Framework, Exploiting Data, Functional Parallelism On
iable and High-Performance Computing, University of Illinois, Urbana, IL, August 1995. [34] A. Roy-Chowdhury. Manual and Compiler Assisted Methods for Generating Fault-Tolerant Parallel Programs. PhD...
S. Ramaswamy, S. Sapatnekar, P. Banerjee, A Framework, Exploiting Data, Functional Parallelism On
r Assisted Methods for Generating Fault-Tolerant Parallel Programs. PhD thesis, Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, December...
An Adaptive Feedback Control Based Cell Scheduler for ATM Networks (1996)
We describe a cell scheduler for ATM networks based on a predictive adaptive feedback control methodology, whose goal is to maintain the quality of service (QoS) of a set of calls at the desired...
Extended Statecharts: A Specification Formalism for High Level Design (1996)
A. Suraj, S. Ramaswamy, K. S. Barber
This paper introduces Extended Statecharts as a comprehensive modeling mechanism for high level systems design. Extended Statecharts allow for the explicit representation of declarable...
August 14, 1996 PARADIGM Bibliography 3 (1996)
S. Ramaswamy, S. Sapatnekar, P. Banerjee, A Framework, Exploiting Data, Functional Parallelism On
iable and High-Performance Computing, University of Illinois, Urbana, IL, August 1995. [34] A. Roy-Chowdhury. Manual and Compiler Assisted Methods for Generating Fault-Tolerant Parallel Programs. PhD...
Equivalent Bandwidth Characterization for Real-time CAC in ATM Networks (1996)
S. Ramaswamy, T. Ono-tesfaye, W. W. Armstrong, P. Gburzynski
Many call admission control schemes for ATM-type networks are based on the concept of effective bandwidth (EB). Most such schemes focus on the cell loss rate as the exclusive QoS metric and therefore...
Equivalent Bandwidth Characterization for Real-time CAC in ATM Networks (1996)
S. Ramaswamy, T. Ono-tesfaye, W. W. Armstrong, P. Gburzynski
Many call admission control schemes for ATM-type networks are based on the concept of effective bandwidth (EB). Most such schemes focus on the cell loss rate as the exclusive QoS metric and therefore...
Novel Finite Temperature Conductivity in Quantum Hall Systems (1995)
Mandal, Sudhansu S., Ramaswamy, S., Ravishankar, V.
We study quantum Hall systems (mainly the integer case) at finite temperatures and show that there is a novel temperature dependence even for a pure system, thanks to the `anomalous' nature of...
Modeling Atm Networks In A Parallel Simulation Environment: A Case Study (1995)
P. Gburzynski, T. Ono-tesfaye, S. Ramaswamy
This paper describes our experience with implementing an Asynchronous Transfer Mode (ATM) network simulator in the high-level sequential programming language SMURPH [Dobosiewicz and Gburzynski 93],...
Modeling ATM Networks in a Parallel Simulation Environment: A Case Study (1995)
P. Gburzynski, T. Ono-tesfaye, S. Ramaswamy
This paper describes our experience with implementing an Asynchronous Transfer Mode (ATM) network simulator in the high-level sequential programming language SMURPH [Dobosiewicz and Gburzynski 93],...
Parallel simulation, Time Warp, ATM networks, Protocol modeling. (1995)
P. Gburzynski, T. Ono-tesfaye, S. Ramaswamy
This paper describes our experience with implementing an Asynchronous Transfer Mode (ATM) network simulator in the high-level sequential programming language SMURPH [Dobosiewicz and Gburzynski 93],...
Quantum Hall Effects at Finite Temperatures (1994)
Mandal, Sudhansu S., Ramaswamy, S., Ravishankar, V.
We study the finite temperature (FT) effects on integer quantum Hall effect (IQHE) and fractional quantum Hall effect (FQHE) as predicted by the composite fermion model. We find that at $T\neq 0$,...
Chern-Simons Superconductivity at finite magnetic field (1994)
Mandal, Sudhansu S., Ramaswamy, S., Ravishankar, V.
We study Chern-Simons (CS) superconductivity in the presence of uniform external magnetic field of {\it arbitrary strength} for a system of fermions in two spatial dimensions, which are minimally...
Sanyal, S, Sood, AK, Ramkumar, S, Ramaswamy, S, Kumar, N
We report an unexpected behavior of the intensity autocorrelation funct