This paper presents a novel control approach used in shunt active power filter based on variable structure control combined with Random PWM technique (RVSC) that provides robust, fast, and more favorable performance for active power filter. This control strategy is compared with two other strategies to show the effectiveness of the introduced methods; pulse width modulated proportional-integral...

While phonetically-motivated change from below is a fundamental concept in contemporary approaches to phonology and variation, empirical data is sparse (Cedergren, 1973; Trudgill, 1974; Labov 2001), partly because changes usually go unnoticed until long after their inception, and because articulatory data (which can shed light on phonetic motivations) is often unavailable. This paper documents ...

We obtained Hubble STIS spectra of three nova-like variables: V751 Cygni, V380 Oph, and the only confirmed nova-like variable known to be below the period gap BK Lyn. In all three systems, the spectra were taken during high optical brightness state, and a luminous accretion disk dominates their far ultraviolet (FUV) light. We assessed a lower limit of the distances by applying the infrared phot...

As device feature sizes shrink below 0.18 μm, shorter wavelength exposure tools are being investigated to meet the requirements for higher resolution. Understanding the optical properties of thin films and substrate materials at short wavelengths (193 nm, 157 nm, and shorter) will be necessary to develop the lithographic process. Variable Angle Spectroscopic Ellipsometry (VASE) offers nondestru...

 Objective: To evaluate the association of base deficit (BD) with mortality in traumatized children, and to assess this association in a subgroup of patients with traumatic brain injury (TBI).   Methods: In this cross-sectional study performed prospectively on a convenience sample of patients under 16 years of age with trauma presenting to an academic lev...

Temperature, T, dependence of the electrical conductivity, σ, of own-made polyaniline pellets, highly doped either by HCl or by dodecylbenzenesulphonic acid, is discussed. For the both dopants, a variable-range-hopping exponent 2/5 is found below T * ≈ 200−250 K. This result can be understood on the basis of a recent theory of Fogler, Teber and Shklovskii which takes into account Coulomb correl...

objective: the aim of this study was to better understand the triggers of suicide, particularly among the ‎ancient greek and persian soldiers and commanders.‎ method: ‎‘herodotus: the histories’ is a history of the rulers and soldiery who participated in the ‎greco-persian wars (492-449 bce). a new translation (2013) of this manuscript was studied. ‎accounts of suicide were collected and collat...