This study deals with the direct torque control (DTC) of the induction motor. This type of control allows decoupling control between the flux and the torque without the need for a transformation of coordinates. However, the DTC scheme has a high ripples for both electromagnetic torque and stator flux and a distortion of the stator current. To solve these problems, we have developed a new approa...

This paper deenes a problem that we called \fuzzy satissability" or \-satissability." It describes in mathematical terms the semantics of satisfying clauses and formulas using fuzzy logic, by converting a boolean formula into an arithmetic expression via t-norm and t-conorm operators. It is shown that for any (t-norm, t-conorm) pair, the corresponding-satissability problem is NP-hard when the v...

The human behavior aspect of pandemic prevention and mitigation involve uncertainties manifested as a range of responses, from the extreme to the indifferent. Relationships between variables influencing human behavior are usually described qualitatively, and as such do not suffice for stock and flow models. These uncertainties can slow down the modelling process considerably, thus limiting the ...

Since the discovery of microRNAs (miRNAs), different approaches have been developed to label, amplify and quantify miRNAs. The TaqMan(®) technology, provided by Applied Biosystems (ABIs), uses a stem-loop reverse transcription primer system to reverse transcribe the RNA and amplify the cDNA. This method is widely used to identify global differences between the expression of 100s of miRNAs acros...

One of the most widely used techniques for solving the famous localization problem in wireless sensor networks (WSNs) is the Trilateration. This paper introduces an enhanced version of the Trilateration algorithm entitled Fuzzy Based Trilateration (FBT). The main objective is to estimate the position of sensor nodes in WSNs accurately with a cheap, low power and simple technique. FBT achieves i...

The stability of asphalt concrete under the effects of freezing and thawing was studied experimentally, and the experimental test results were modelled using fuzzy logic and statistical methods. The stability was investigated experimentally using the Marshall and ultrasound methods. Asphalt core samples 10 cm in diameter were alternately frozen (–20°C for 16 hr) and thawed (16°C for 8 hr) for 5...

In this paper we suggest a new approach to design of the adaptive network safety control mechanisms. This approach is based on the fuzzy logic theory and allows to formalize both quantitative and qualitative parameters of the network safety system. Also it is suggested an algorithm for design of the model for the adaptive network safety control mechanism with safety functional requirements form...

Sungkyunkwan University, Suwon 440-746, Republic of Korea Summary In sensor networks, nodes can be easily compromised by an adversary because of hostile environments. An adversary may use compromised nodes to inject false reports into the network. The dynamic en-route scheme for filtering false data injection can detect and drop such false reports during the forwarding phase. In this scheme, ch...

This article presents an open data repository, the methodology to generate it and the associated data processing software developed to consolidate an hourly snapshot historical data set for the year 2015 to an equivalent Nordic power grid model (aka Nordic 44), the consolidation was achieved by matching the model׳s physical response w.r.t historical power flow records in the bidding regions of ...

For ABR to be a practical part of ATM, its rate must be able to be controlled effectively even in the presence of a large round trip time (RTT). A simple fuzzy logic controller was recently shown to perform poorly in networks with large RTTs. This paper compares three methods of improving the robustness of this controller to large RTT. One of these in particular is found to provide significantl...