In this paper, we show how convex optimization can be used for model reduction and identification of transfer functions. Two different methods are presented. In the first method magnitude functions are matched, and in the second method phase functions are matched. The weighted error bounds have direct interpretation in a Bode diagram. Both methods are suitable to engineers working with Bode dia...

Objective: Chronic obstructive pulmonary disease (COPD) is characterized by systemic inflammation and accelerated inflammaging of the lungs. Some studies showed that conjugated linoleic acid (CLA) has anti-inflammatory effects. The aim of the present study was to evaluate the effect of CLA supplementationon serum levels of interleukin (IL)-6 and sirtuin1 (SIRT1) in patients wit...

In an attempt to enact equitable practices in U.S. public schools, many critical multicultural and anti-racist theorists, researchers, and practitioners strongly suggest that teacher educators move beyond diversity approaches to multicultural education in their teacher preparation programs to address the more uncomfortable issues of power and equity—namely, racism (Banks & McGee-Banks, 2006; Le...

This paper aims at developing Bode-type integrals for control systems over additive white Gaussian noise channels, by way of deriving information theoretic equalities and inequalities. The integrals characterize the fundamental performance trade-offs of such networked feedback systems with linear time-invariant plants and causal stabilizing controllers. We propose two new notions to facilitate ...

Bode principle is applied to carry out traffic control for rate based ATM network, which guarantees the higher buffer utilization, buffer overflow-free, and well utilization of bandwidth. The principle confirms the relationship between the threshold of buffer queue and the network bandwidth, as well as the relationship between the threshold of buffer and source input rate. Theoretic warrant of ...

Stability in presence of (possibly varying) time-delays in a control loop consisting of a continuous-time plant and a discrete-time controller is studied. A simple stability criterion is developed, consisting of a graphical test in a Bode plot of the closed loop system. The graphical test makes it very easy to design the controller for time-delay robustness.

The goal of this laboratory activity is to design, implement and test a speed PI controller for the DC servomotor available in laboratory. The control design is carried out in frequency domain (i.e Bode’s method), using the nominal model of the DC gearmotor derived in the previous laboratory activity. Accurate numerical simulations are used to validate the control design, before moving on with ...

This paper aims at obtaining universal laws and absolute lower bounds of feedback systems using information theory. The feedback system setup is that with causal plants and causal controllers. Three laws (entropy rate never decreases, generalized Bode integral, and absolute lower bound in variance minimization) are obtained, which are in entropy domain, frequency domain, and time domain, respec...

The cost function in stochastic optimal control is viewed as a random variable. Then the classical linearquadratic-Gaussian control, entropy control, risk-sensitive control, and cost cumulant control can be viewed as the cost distribution shaping methods. In this paper, we will survey the existing relations between entropy, Bode integral, and risk-sensitive cost function. Furthermore, we will r...