Profile image of sajjadtaghvaeifr
Flag of Japan Sendai, Japan
Member since September 8, 2018
3 Recommendations


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I have phd in mechanical engineering from department of bioengineering and robotics from Tohoku university and I lead a team of expert engineering with the following skills: Mechanical engineeing: Solidworks, Ansys, Mechanical design, Inventor, Autocad, Machine design, Matlab, Simulink, Vibration, Control,Stress analysis Electrical Engineering: Signal processing, Image processing, Power electronics, power transmission lines, Kalman filters, Electronics, Conrol systems, Identification Computer engineering: Programming with python, Java, cpp, neural networks, deep learning, convolutional neural network, artificial intelligence, object detection, web development
$15 USD/hr
33 reviews
  • 100%Jobs Completed
  • 70%On Budget
  • 97%On Time
  • 14%Repeat Hire Rate

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Recent Reviews

  • image of Ahmad A. Project for Sajjad T. $90.00 USD

    “Excellent final product”

  • image of Michal O. Just Another Project for Sajjad T. €140.00 EUR

    “well done, satisfying job”

  • image of Alio L. Project for Sajjad T. -- 2 €135.00 EUR

    “Sajjad is a very good developper , I recommand him without any doubt”

  • image of Yones H. Project for Sajjad T. £25.00 GBP

    “Very good guy, very responsive aswell. Got the job done to a good level aswell, would hire again!”

  • image of Lovekesh G. Project for Sajjad T. ₹1000.00 INR

    “He was really was really nice working with him”

  • image of Nb B. Project for Sajjad T. -- 2 $42.00 USD

    “I will be very honest in this . He has no knowledge .Actually i would be blunt in this I dont know how he claims to be a phd student .I sincerly think freelancer should check the backgrounds of people like sajjad t ,who are nothing but complete frauds. In addition he does not know how to code. I provided all the materials . H esaid he would be doing ,in the end all i got was a blank sheet of paper ,not to mention my loss of time ,energy and money . GUYS STAY AWAY FROM SUCH FRAUDS”


Ph. D.

2009 - 2012 (3 years)


HMM-based state classification of a user with a walking support system using visual PCA features

In this study, we propose a method for real-time visual state classification of a user with a walking support system. The visual features are extracted using principal component analysis and classification is performed by hidden Markov models, both for real-time fall detection (one-class classification) and real-time state recognition (multi-class classification).


In this paper, an optimal motion planning algorithm and dynamic modeling of a planar kinematically redundant manipulator are considered.

Detection of Unstable Periodic Orbits and Chaos Control in a Passive Biped Model

In this investigation, two chaos control algorithms based on linearization of Poincare´ map (OGY method) and artificial neural networks (ANNs) are utilized to control the motion of a passive biped model.