Membrane technology is growing very fast and it is used in several main applications from desalination, water and wastewater treatment to medical, biotechnology and gas separation field. Different membrane processes are applied depending on the applications from more traditional pressure-driven membrane processes (Microfiltration, MF; Ultrafiltration, UF; Nanofiltration, NF) to more advanced on...

Peltier technology opens new opportunities for special applications. In the current project, this technology was applied to design and fabricate a portable thermoelectric beverage cooler and thermoelectric cup. The simulation and results of the experiment showed that the common beverage cooler is not a suitable design for ignoring the effect of natural convection in cooling. In our thermoel...

Introduction: Emotional stimulus is processed automatically in a bottom-up way or can be processed voluntarily in a top-down way. Imaging studies have indicated that bottom-up and top-down processing are mediated through different neural systems. However, temporal differentiation of top-down versus bottom-up processing of facial emotional expressions has remained to be clarified. The present st...

Computer simulations of surface processes can reveal unexpected insight regarding atomic-scale structure and transitions. Here, the strengths and weaknesses of some commonly used approaches are reviewed as well as promising avenues for improvements. The electronic degrees of freedom are usually described by gradient-dependent functionals within Kohn-Sham density functional theory. Although this...

The classical method of process capability analysis necessarily assumes that collected data are independent; nonetheless, some processes such as biological and chemical processes are autocorrelated and violate the independency assumption. Many processes exhibit a certain degree of correlation and can be treated by autoregressive models, among which the autoregressive model of order one (AR (1))...

One of the main goals of simulation in supply chain management is to evaluate the performance and how it can be increased by effectively managing a complex supply chain. Simulation supports managers in decision making at strategic, tactical and operational levels through visualizing, understanding and analyzing the dynamics of the supply chain (SC). This paper provides a detailed analysis of th...

The Harvard community has made this article openly available. Please share how this access benefits you. Your story matters. Electrophysiological potentials reveal cortical mechanisms for mental imagery, mental simulation, and grounded (embodied) cognition. Frontiers in Psychology 3:329. Grounded cognition theory proposes that cognition, including meaning, is grounded in sen-sorimotor processin...

In cluttered scenes, some object boundaries may not be marked by image cues. In such cases, the boundaries must be defined top-down as a result of object recognition. Here we ask if observers can retain the boundaries of several recognized objects in order to segment an unfamiliar object. We generated scenes consisting of neatly stacked objects, and the objects themselves consisted of neatly st...

It is possible to represent each of a number of Markov chains as an evolving sequence of connected subsets of a directed acyclic graph that grow in the following way: initially, all vertices of the graph are unoccupied, particles are fed in one-byone at a distinguished source vertex, successive particles proceed along directed edges according to an appropriate stochastic mechanism, and each par...