Jadav Das

              

 

 

PhD Student

Robotics and Autonomous System Laboratory                                            Phone: (615) 343-9925 (O)

Department of Mechanical Engineering                                                                   : (615) 775-1907 (M)

Vanderbilt University                                                                                      E-mail: jadav.das@vanderbilt.edu

VU Station B 351592

Nashville, TN 37235, USA

 

 

 

 

 

RESEARCH INTERESTS

 

Design, modeling and control of dynamical systems, robot control, robotics rehabilitation, medical robots, and geometric modeling.

 

TEACHING INTERESTS

 

Robotics, mechatronics, linear and non-linear control system, adaptive control system, signal processing, engineering dynamics, linear and non-linear vibration, finite element method, computer aided engineering design, optimization and mathematics.

 

EDUCATION

 

VANDERBILT UNIVERSITY                                                                                                                         Nashville, USA

Doctor of Philosophy, Department of Mechanical Engineering                                                                               Aug. 2006 - till date

  Dissertation: Handling Deformable Objects by Multiple Manipulators

 

INDIAN INSTITUTE OF TECHNOLOGY KANPUR                                                                                   Kanpur, INDIA

Master of Technology, Department of Mechanical Engineering                                                                              August 2004

Thesis: Control of friction-driven oscillation by time delay state feedback

 

BENGAL ENGINEERING AND SCIENCE UNIVERSITY                                                                          Kolkata, INDIA

Bachelor of Engineering, Department of Mechanical Engineering                                                                            August 2000

Senior Project: Study the efficiencies of different rated thermal power plant

 

EMPLOYMENT

 

VANDERBILT UNIVERSITY                                                                                                                         Nashville, USA

Research Assistant                                                                                                                                               August, 2007 – till date

 

-         Stroke is a highly prevalent condition especially among the elderly that results in high costs to the individual and society. Robot-assisted rehabilitation is a repetitive movement exercise and standardized delivery of therapy with the potential of enhancing quantification of the therapeutic process for stroke patients. In the existing robotic rehabilitation systems, a therapist administers the therapy where he/she monitors the progress of the tasks needs to be updated based on the need of individual patient. This consumes a significant amount of time of the therapist as well as increases his/her workload, and consequently, increases the cost of treatment. In this research, an intelligent control architecture based on hybrid control theory is designed for robot-assisted rehabilitation that can autonomously monitor rehabilitation tasks including safety issues, provide assessment of the progress of the task and alter the task parameters if needed. A voice recognition system is developed and included into the system to recognize how the patients feel about the task, which will then be used to make the necessary modifications about the presentation of the task to accommodate any problem patients perceive during the execution of the task. A 6 degree of freedom PUMA robot with a hand attachment device is used for the experiment. A computer is placed in front of the patients and the patients are asked to perform some desired tasks. During the therapy, if a task requirement changes or if the patient does not feel comfortable to move his/her arm at a specified speed, then he/she may speak out to change the task automatically.

 

-         Ageing is a cause of decline in muscle strength and inability to maneuvering hand movement due to the changes in motor function. Elderly individuals have difficulties in performing daily living activities like writing a note, lifting and holding objects, tying shoe laces and fastening buttons. Sometimes they have little control of their finger forces mainly due to changes in skin properties, cutaneous sensibility function and central nervous system function. Also the elderly adults have larger number of fluctuation in the grip force and even they take long time to apply forces than the younger individuals during lifting and holding operation. Human manual function such as grasping, lifting and dexterous manipulation of objects is greatly carried out by skillful use of fingers. In this research, a coordinate controller is developed for human index finger of 3 degrees of freedom (DOF) (flexion and extension (FE) type) and thumb of 5 DOF (3 FE, 2 Abduction-adduction types) to emulate the human pinch motion. Further research is needed to develop a robot-assisted hand device to assist the stroke patients or elderly individuals who have little control to manipulate the objects.

 

-         Breast cancer is the most common cancer among American women and the second leading cause of cancer death in women. Our lab has designed and developed a robotic system to position the tumor inline with the needle insertion during the image guided breast biopsy procedure. In continuation, I have developed an optimization technique to position the actuators surrounding the breast to perform efficient sampling the lesion during biopsy procedure.

 

VANDERBILT UNIVERSITY                                                                                                                         Nashville, USA

Teaching Assistant                                                                                                                                               August, 2006 – till date

 

-         Took laboratory of undergraduate students and held classes occasionally.

-         Graded laboratory reports and home assignments.

 

TATA STEEL LIMITED                                                                                                                                 Jamshedpur, NDIA

Technologist                                                                                                                                                       Sept. 2004 - July 2006

 

-         Developed a hand held vibration based condition-monitoring system for diverse machinery that can predict the incipient faults in the running machines before the actual failure.

-         Developed a comprehensive software and hardware module for recognition of fault signature patterns in steel continuous casting process to prevent breakdown.

-         Developed a complete software and hardware technology for real-time prediction of state variables (i.e., percentage of carbon, oxygen and hydrogen in molten steel) during RH Degassing process based on a model free state estimation techniques.

-         Invented novel techniques to estimate the states from measurable.

 

INDIAN INSTITUTE OF TECHNOLOGY KANPUR                                                                                   Kanpur, INDIA

Teaching Assistant                                                                                                                                               Aug. 2002 - July 2004

 

-         Held classes occasionally and helped students in their laboratory work.

-         Graded home assignments and mid-term papers of undergraduate students.

 

DEVELOPMENT CONSULTANT PRIVATE LIMITED                                                                              Kolkata, INDIA

Design Engineer                                                                                                                                                   Aug. 2000 - July 2002

 

-         Selection of suitable site to set up Thermal Power Plant and preparation of site selection report.

-         Developed complete Power Plant layout and system drawing in AutoCAD.

-         Prepared feasibility report and detailed project report.

 

 

HONORS AND AWARDS

 

Graduate Research and Teaching Assistant Scholarship, Department of Mechanical Engineering, Vanderbilt University, USA, August 2007 – till date

Graduate Student Travel Award, Vanderbilt University, 2008.

Graduate Teaching Assistant Scholarship, Department of Mechanical Engineering, Vanderbilt University, USA, August 2006 – July, 2007

GRE and TOEFL qualified, 2005

Ministry of Human Resource Development Scholarship, India, August 2002 – July 2004

98.76 percentile in GATE (Graduate Aptitude Test in Engineering) with All India Rank 223, 2002

Top five (7% of the class) in Bachelor of Engineering, Bengal Engineering and Science University, Shibpur, 2000

Silver Medal from Khasmorah High School, West Bengal, India, 1996

Bronze Medal from Domjur Thana Utsab Samanay Committee, West Bengal, India, 1996

Top in Khasmorah High School and rank 121 in state West Bengal in Higher Secondary Education, 1996

 

PUBLICATIONS

 

1.     Jadav Das and Nilanjan Sarkar, “Shape Control of a Deformable Object by Multiple Manipulators,” Proceedings of the 2009 IEEE International Conference on Intelligent Robots and Systems, St. Louis, Missouri, USA. (Accepted for publication).

2.     Duygun Erol, Furui Wang, Jadav Das, Nilanjan Sarkar, and Thomas Groomes. A Step Toward Increasing Automation in Robot-Assisted Rehabilitation. IEEE International Conference on Biomedical Robotics and Biomechatronics, Arizona, USA, pp. 930-935, 2008.

3.      Arya K. Bhattacharya, S. Debjani, A. Roychowdhury and Jadav Das. “Optimization of continuous casting mould oscillation parameters in steel manufacturing process using genetic algorithm,” IEEE Congress on Evolutionary Computation, pp. 3998-4004, 2007.

4.     J. Das and A.K. Mallik. “Control of friction-driven oscillation by time-delay state feedback” Journal of Sound and Vibration, volume 297, issues 3-5, pp. 578-594, 2006.

5.     A. K. Bhattacharya, P. S. Srinivas, Jadav Das, Gyan Prakash, J. B. Singh and Sunil Kumar. “Auto-adaptation of breakout detection algorithm with grade based on temperature patterns in continuous casting mold,” Automation & Information Technologies in Iron and Steel making. Research and Development Centre for Iron & Steel (RDCIS), Ranchi, India, 2006.

6.     Arya K. Bhattacharya, P. S. Srinivas, K. Chithra, S. V. Jatla and Jadav Das. “Recognition of Fault Signature Patterns Using Fuzzy Logic for Prevention of Breakdowns in Steel Continuous Casting Process,” Lecture Notes in Computer Science, volume 3776, 318-324, 2005.

                                                                                                                                               

 

PATENTS

 

1.     A. K. Bhattacharya, P. S. Srinivas, J. Das and C. Bhanu. “Method for real-time prediction of carbon percentage during RH Degassing process using model free states estimation technique,” filed 2005-06-03, 2007, INDIA.

 

LIST OF REFEREES

 

1.     Prof. Nilanjan Sarkar, Department of Mechanical Engineering, Vanderbilt University, VU Station B 353592, Nashville, TN 37235, TN, USA (nilanjan.sarkar@vanderbilt.edu).

2.      Prof. George E. Cook, Dean of Research and Graduate Studies, Department of Electrical Engineering, Vanderbilt University, VU Station B 351826, Nashville, TN 37235, USA (george.e.cook@vanderbilt.edu)

3.      Prof. Michael Goldfarb, Department of Mechanical Engineering, Vanderbilt University, Vu Station B 353592, Nashville, TN 37212, USA (michael.goldfarb@vanderbilt.edu).

4.     Prof. Eric J. Barth, Department of Mechanical Engineering, Vanderbilt University, VU Station B 353592, Nashville, TN 37235, TN, USA (barthej@vanderbilt.edu).

5.     Prof. Asok Kumar Mallik, Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, INDIA (akmallik@iitk.ac.in)