This work studies the mixed convection heat transfer from a vertical plate in bidisperse porous media with constant wall temperature. The two-velocity two-temperature model is used to derive the governing equations. The effects of the mixed convection parameter, the inter-phase heat transfer parameter, the modified thermal conductivity ratio, and the permeability ratio on the heat transfer and ...

In this letter we propose a novel method to unambiguously estimate the phase-difference of a single-frequency signal measured between a pair of spatially separated sensors. First, we mathematically prove that, in a noiseless system, the phase between a pair of spatially separated sensors with inter-sensor spacing exceeding half wavelength (λ2 ) of the signal of interest, can unambiguously be es...

The first compound capable of forming a bundled-stack discotic columnar liquid crystalline (BSDCLC) phase was designed and synthesized. The unique perylene anhydride inter-stack interaction was found to be the key to the formation of the BSDCLC structure and inter-stack electronic coupling (ISEC).

The subject of on-line detection and location of inter-turn short circuits in the stator windings of three-phase induction motors is discussed, and a noninvasive approach, based on the computer-aided monitoring of the stator current Parks Vector, is introduced. Experimental results, obtained by using a special fault producing test rig, demonstrate the effectiveness of the proposed technique, fo...

We analyze the phase diagram of single and bi-layer cuprates using the gaugefield description of the t-J model. For T > TBE the in-plane fermion-pairing order parameter ∆‖ is eliminated by gauge field fluctuations, leading us to predict the absence of a spin-gap phase in single-layer cuprates. For bi-layer cuprates the inter-layer order parameter ∆⊥ is enhanced by spin correlations, and is less...

the present study aimed at investigating the specific discourse cycles of someintroductory textbooks across disciplines and languages to see to what extent theyacculturate students into the new subjects. to this end, 2 well-established and mostlyused english and persian introductory textbooks in sociology and 2 other wellestablishedenglish and persian introductory textbooks in linguistics were ...

objective: in view of the effect of hard labor on pregnancy outcomes and to determine risk factors, in this study, the effect of spacing between pregnancies was evaluated for probable effect on the incidence of dystocia in labor. materials and methods: this is a cross - sectional study used the records of 210 pregnant women referred to azad university hospitals between january 2000 and december...

We describe a radar transmission scheme with long phase coded pulses and non-uniform inter-pulse periods (IPPs) that gives a full range coverage while maintaining high radar duty cycle. In this scheme, the range ambiguity is mitigated using a combination of phase coding and nonuniform inter-pulse periods. To demonstrate the concept, we show initial results from a recent 21-hour EISCAT UHF measu...