because of its kinetic nature and computational advantages, the lattice boltzmann method (lbm) has been well accepted as a useful tool to simulate micro-scale flows. the slip boundary model plays a crucial role in the accuracy of solutions for micro-channel flow simulations. the most used slip boundary condition is the maxwell slip model. the results of maxwell slip model are affected by the ac...

This paper presents a method of improving the least square channel estimator accuracy without increasing the pilot density. The Kalman filter process equation can be represented as Autoregressive model, and the least square channel estimate is seen as a noisy measurement of the true channel state, so the Kalman filter measurement equation can be represented as the least square estimated channel...

The cement industry is the major source of cement dust which contains heavy metals like nickel, cobalt, lead, chromium, arsenic and hazardous substances like dioxins and furans. Exposure to these substances can cause health problems to human, animals and vegetation. A continuous pilot scale quartz sand filter was constructed and uses to study the effect of important design parameters (temperatu...

Air quality control has become increasingly important in many industrial areas. Glass fiber filter paper is widely used for the collection of airborne particulate matter. Since glass fiber is fragile, fiber dispersion is believed to be important for controlling filter paper properties. In this paper, the impact of fiber dispersion on filtration performance and tensile properties was studied. Tw...

A granular substrate used as a support for three-way catalyzed (TWC) solid-particle membrane filter was investigated through numerical simulation. The proposed could reduce the amount of required catalyst material by 39% and lower pressure drop 33%, compared to conventional filter, while achieving almost 100% soot-filtration. Moreover, TWC porous particles, which are designed introduce fluid fl...

We address pilot-symbol aided channel estimation (PACE) for OFDM. To reduce the complexity of the optimum minimum mean squared error (MMSE) estimator, two sub-optimum estimators are investigated. First, an estimator utilizing an FIR filter of reduced length. The filter coefficients are determined according to a Wiener filter with model mismatch, i.e. the channel conditions which are assumed to ...