Search Results - "Patel, R.V."

Modeling and Control of Shape Memory Alloy Actuators by Jayender, J., Patel, R.V., Nikumb, S., Ostojic, M.

“…This brief describes a new model for shape memory alloy (SMA) actuators based on the physics of the process and develops control strategies using the model…”
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A stable neural network-based observer with application to flexible-joint manipulators by Abdollahi, F., Talebi, H.A., Patel, R.V.

“…A stable neural network (NN)-based observer for general multivariable nonlinear systems is presented in this paper. Unlike most previous neural network…”
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Transparent Time-Delayed Bilateral Teleoperation Using Wave Variables by Aziminejad, A., Tavakoli, M., Patel, R.V., Moallem, M.

“…Besides stability, a high degree of transparency is also an essential requirement in order to enable operators to safely and precisely perform bilateral…”
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A Novel Manipulator for Percutaneous Needle Insertion: Design and Experimentation by Bassan, H.S., Patel, R.V., Moallem, M.

“…In this paper, we present the design of a novel 5-DOF manipulator for percutaneous needle insertion. The requirements of the manipulator have been instigated…”
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Dynamic 3-D Virtual Fixtures for Minimally Invasive Beating Heart Procedures by Jing Ren, Patel, R.V., McIsaac, K.A., Guiraudon, G., Peters, T.M.

“…Two-dimensional or 3-D visual guidance is often used for minimally invasive cardiac surgery and diagnosis. This visual guidance suffers from several drawbacks…”
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A Robust Position and Force Control Strategy for 7-DOF Redundant Manipulators by Patel, R.V., Talebi, H.A., Jayender, J., Shadpey, F.

“…This paper is concerned with robust position and contact force control for 7-DOF redundant robot arms. An outer-inner loop controller, called the augmented…”
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Robot-assisted Tactile Sensing for Minimally Invasive Tumor Localization by Trejos, A.L., Jayender, J., Perri, M.T., Naish, M.D., Patel, R.V., Malthaner, R.A.

“…The 10 mm incisions used in minimally invasive cancer surgery prevent the direct palpation of internal organs, making intraoperative tumor localization…”
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High-Fidelity Bilateral Teleoperation Systems and the Effect of Multimodal Haptics by Tavakoli, M., Aziminejad, A., Patel, R.V., Moallem, M.

“…In master-slave teleoperation applications that deal with a delicate and sensitive environment, it is important to provide haptic feedback of slave/environment…”
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Autonomous Image-Guided Robot-Assisted Active Catheter Insertion by Jayender, J., Azizian, M., Patel, R.V.

“…Interventional cardiologists are at great risk from radiation exposure due to lengthy procedures performed under X-ray radiations. Angioplasty is one such…”
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Investigations on Wear Behaviour of AISI 4140 Hot Strip Mill Roller Hardfaced with Martensitic Stainless Steel by Submerged Arc Welding Process by Patel, R.V., Wanare, S.P., Kalyankar, V.D. Kalyankar

“…In the present investigation, a worn-out hot strip mill roller of AISI 4140 material has been reconditioned by the deposition of hardfacing. The roller belongs…”
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Friction Identification and Compensation in Robotic Manipulators by Kermani, M.R., Patel, R.V., Moallem, M.

“…In this paper, friction identification and friction compensation in the joints of a robotic manipulator are studied. The friction force is modeled using a…”
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Acinetobacter infections: a retrospective study to determine inhospital mortality rate and clinical factors associated with mortality by Patel, R.V., Shah, J.S., Revathi, G., Siika, W., Shah, R.

“…A retrospective case series of acinetobacter infections at a tertiary hospital in Nairobi was conducted to determine the mortality rate and factors associated…”
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Stability and performance in delayed bilateral teleoperation: Theory and experiments by Aziminejad, A., Tavakoli, M., Patel, R.V., Moallem, M.

“…In the presence of communication latency in a bilaterally controlled teleoperation system, stability and transparency are severely affected. In this paper,…”
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Transcriptional Profiling of Pig Embryogenesis by Using a 15-K Member Unigene Set Specific for Pig Reproductive Tissues and Embryos by Whitworth, K.M, Agca, C, Kim, J.-G, Patel, R.V, Springer, G.K, Bivens, N.J, Forrester, L.J, Mathialagan, N, Green, J.A, Prather, R.S

“…Differential mRNA expression patterns were evaluated between germinal vesicle oocytes (pgvo), four-cell (p4civv), blastocyst (pblivv), and in vitro-produced…”
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A layered goal-oriented fuzzy motion planning strategy for mobile robot navigation by Xiaoyu Yang, Moallem, M., Patel, R.V.

“…Most conventional motion planning algorithms that are based on the model of the environment cannot perform well when dealing with the navigation problem for…”
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Stable identification of nonlinear systems using neural networks: theory and experiments by Abdollahi, F., Talebi, H.A., Patel, R.V.

“…This paper presents an approach for stable identification of multivariable nonlinear system dynamics using a multilayer feedforward neural network. Unlike most…”
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608 Measurement of forces applied by the davinci robot during ex vivo robotics-assisted porcine mitral valve annuloplasty by Currie, M.E, Trejos, A.L, Rayman, R, Chu, M.W, Patel, R.V, Peters, T.M, Kiaii, B

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A Potential Field Model Using Generalized Sigmoid Functions by Jing Ren, McIsaac, K.A., Patel, R.V., Peters, T.M.

“…The lack of a potential field model capable of providing accurate representations of objects of arbitrary shapes is considered one major limitation in applying…”
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Flexure control using piezostack actuators: design and implementation by Kermani, M.R., Patel, R.V., Moallem, M.

“…In this paper, the application of high control authority piezostack actuators (PSAs) for active vibration control of large-scale flexible structures is…”
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Neural network based tracking control of a flexible macro–micro manipulator system by Cheng, X.P., Patel, R.V.

“…In this paper, we address the problem of stable tracking control of a flexible macro–micro manipulator ( M 3) system. A two-layer neural network is utilized to…”
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