The closed-loop operation of brain-machine interfaces (BMI) provides a framework to study the mechanisms behind neural control through a restricted output channel, with emerging clinical applications to stroke, degenerative disease, and trauma. Despite significant empirically driven improvements in closed-loop BMI systems, a fundamental, experimentally validated theory of closed-loop BMI operat...

The paper shows how a synthetic gradient of a quadratic cost function can be used to monitor performance. The method requires a model of the closed loop system. In the current paper this is obtained from the recommended tuning rule. The tuning rule requires a simple model of the process. The method is non-invasive, only closed loop data from normal operation is used. By monitoring the gradient,...

For N-cells cascaded H-bridge (CHB) inverters based on unipolar double frequency phase-shifted pulsewidth modulation (PS-PWM), the output voltage is distorted and its harmonics are difficult to be suppressed under unbalanced conditions (different dc voltages and/or indices). This article proposes a closed-loop harmonic suppression scheme PS-PWM, easily implemented in dq fra...

in this paper, firstly by using a mixed linear programming a new model of locating facilities with limited capacity is presented to design a closed-loop supply chain in a multi-product and multi-period mode. then, using a robust optimization approach, the proposed model decreases in non-deterministic expansion. the results show that the proposed model can handle facility capacity in a closed lo...

In the modern world, problem of environmental pollution with various toxic emissions is growing more and
 more. Exhaust or exhaust gases internal combustion engines are one those man-made factors. All countries
 impose restrictions on concentration hazardous substances, for example: Euro - cars, Tier and Stage
 heavy equipment MARPOL-73/78, which regulates from maritime transport...

In this paper, an intuitive analysis of a phase noise reduction technique is done, and then a modified structure is proposed to achieve higher phase noise reduction than the original one. This method reduces the impact of noise sources on the phase noise by decreasing closed-loop gain in zero-crossings points and moving this high closed-loop gain to the non-zero-crossings points. This reduction...

3 I CONTROL OF THE DC-AC MMC FOR VARIABLE-SPEED DRIVE SYSTEMS 5 1.1 Glossary of terms 5 1.2 Introduction 6 1.3 The MMC 8 1.3.1 Dynamic Model 8 1.4 Low-Frequency Operation 9 1.4.1 The Existing Sine-wave Strategy 9 1.4.2 The Proposed Strategies 11 1.4.3 Comparison of the Proposed Strategies with the Sine-Wave Strategy 12 1.5 Controller Design Methodology 13 1.6 Closed-loop System 15 1.6.1 Closed-...