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Siddhartha Sikdar
George Mason University
123Publications
16H-index
1,012Citations
Publications 123
Newest
#1Ananya S. Dhawan (GMU: George Mason University)
#2Biswarup Mukherjee (GMU: George Mason University)H-Index: 3
Last.Siddhartha Sikdar (GMU: George Mason University)H-Index: 16
view all 10 authors...
Technological advances in multi-articulated prosthetic hands have outpaced the development of methods to intuitively control these devices. In fact, prosthetic users often cite "difficulty of use" as a key contributing factor for abandoning their prostheses. To overcome the limitations of the currently pervasive myoelectric control strategies, namely unintuitive proportional control of multiple degrees-of-freedom, we propose a novel approach: proprioceptive sonomyographic control. Unlike myoelec...
#1Matthew T. Chrencik (UMB: University of Maryland, Baltimore)
#2Amir Khan (GMU: George Mason University)H-Index: 7
Last.Brajesh K. Lal (UMB: University of Maryland, Baltimore)H-Index: 29
view all 9 authors...
Abstract Objective Quantification of carotid plaque morphology (geometry and tissue composition) may help stratify risk for future stroke and assess plaque progression or regression in response to medical risk factor modification. We assessed the feasibility and reliability of morphologic measurements of carotid plaques using computed tomography angiography (CTA) and determined the minimum detectable change in plaque features by this approach. Methods CTA images of both carotid arteries in 50 pa...
#1Brajesh K. Lal (UMB: University of Maryland, Baltimore)H-Index: 29
#2Amir Khan (GMU: George Mason University)H-Index: 7
Last.Siddhartha Sikdar (GMU: George Mason University)H-Index: 16
view all 8 authors...
#1Gabriel Antoniak (Duke University)
#2Tirthabir Biswas (LUC: Loyola University Chicago)H-Index: 12
Last.Vikas Bhandawat (Duke University)H-Index: 9
view all 6 authors...
Despite the overall complexity of legged locomotion, the motion of the center of mass (COM) itself is relatively simple, and can be qualitatively described by simple mechanical models. In particular, walking can be qualitatively modeled by a simple model in which each leg is described by a spring-loaded inverted pendulum (SLIP). However, this model has many limitations and is unlikely to serve as a quantitative model. As a first step to obtaining a quantitative model for walking, we explored the...
#1Shriniwas Patwardhan (UCSB: University of California, Santa Barbara)
#2Ananya S. Dhawan (GMU: George Mason University)
Last.Siddhartha Sikdar (GMU: George Mason University)H-Index: 16
view all 0 authors...
#1Brajesh K. Lal (UMD: University of Maryland, College Park)H-Index: 29
#2Matthew Chrencik (UMD: University of Maryland, College Park)
Last.John Yokemick (UMD: University of Maryland, College Park)
view all 16 authors...
#1Gabriel Antoniak (Duke University)
#2Tirthabir Biswas (LUC: Loyola University Chicago)H-Index: 12
Last.Vikas Bhandawat (Duke University)H-Index: 9
view all 6 authors...
Despite the overall complexity of legged locomotion, the motion of the center of mass (COM) itself is relatively simple, and can be qualitatively described by simple mechanical models. The spring-loaded inverted pendulum (SLIP) is one such model, and describes both the COM motion and the ground reaction forces (GRFs) during running. Similarly, walking can be modeled by two SLIP-like legs (double SLIP or DSLIP). However, DSLIP has many limitations and is unlikely to serve as a quantitative model ...
Photoacoustic imaging is an emerging imaging modality that is based upon the photoacoustic effect. In photoacoustic tomography (PAT), the induced acoustic pressure waves are measured by an array of detectors and used to reconstruct an image of the initial pressure distribution. A common challenge faced in PAT is that the measured acoustic waves can only be sparsely sampled. Reconstructing sparsely sampled data using standard methods results in severe artifacts that obscure information within the...
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