نتایج جستجو برای: signal change
تعداد نتایج: 989179 فیلتر نتایج به سال:
Power systems are subjected to small–signal oscillations that can be caused by sudden change in the value of large loads. To avoid the dangers of these oscillations, the Power System Stabilizers (PSSs) are used. When the PSSs can not be effective enough, installation of the Thyristor–based compensators to increase the oscillations damping is a suitable method. In this paper, a Static Synchronou...
In this project, we explore a data-‐driven approach for monitoring rail infrastructure from the dynamic response of a train in revenue-‐service. Presently, rail inspection is performed either visually or with dedicated track geometry cars. We examine a more economical approach where ...
Background and Aim: Antioxidants are compounds that protect cells from attacks of free radicals. Lack of balance between antioxidants and free radicals results in oxidative stress, which ultimately results in cell damage. The effects of flavonoids are not related solely to their antioxidant properties, but also to their effects on cellular signal pathways. The present study was conducted to eva...
Introduction: To prevention the healthy tissues from irreversible damages, monitoring the temperature variation of healthy tissues is critical parameter during thermal therapies. Electrical impedance tomography (EIT) is considered as a real time imaging modality for monitoring the temperature but researches show that it suffers from low temperature resolution. In this study usi...
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