A kinetic model of cell membrane ion channels is proposed based on the path integral method. From the Pauli-type master equations valid on a macroscopic time scale, we derive a first-order differential equation or the kinetic equation which governs temporal evolution of the channel system along...

The so-called ellipsoidal statistical (ES) kinetic model is used to study the uniform shear flow problem in a dilute gas. This model is an extension of the well-known BGK kinetic to account for the correct Prandtl number. The velocity moments and the velocity distribution function are obtained...

In this paper, measurements of the CO₂ gasification kinetics for two types of Shenfu coal chars, which were respectively prepared by slow and rapid pyrolysis at temperatures of 950 °C and 1,400 °C, were performed by an isothermal thermo-gravimetric analysis under ambient pressure and elevated...

A microscopic lattice gas model for ultra-thin film dynamics is developed and applied to the case of heteroepitaxial growth. A set of non-linear kinetic equations for average occupations of adsorption sites in 3D lattice is studied analytically in a continual limit. It is found that within a...

Waste papers (newspaper, office paper, magazines and cardboard in this study) with 50–73% (w/w oven dry weight) carbohydrate contents have considerable potential as raw materials for bioethanol production. A particle size reduction step of wet blending prior to enzymatic hydrolysis of...

This paper deals with the technical feasibility of calcium oxide as a sorbent for CO2 (carbon dioxide) in syngas for air–steam gasification of lignocellulosic biomass. The process is simulated through a kinetic approach incorporating rate equations for the component reactions. Using the...

Pyrolysis of tert-butanol (2.77% tert-butanol in argon) in a laminar plug flow reactor was studied at low pressure and a temperature range of 950–1850 K. More than 20 pyrolysis species were identified by using synchrotron vacuum ultraviolet photoionization mass spectrometry (SVUV-PIMS); and...

The effect of temperature and catalyst concentration on palm oil ethanolysis using 0.2 to 1 wt% NaOH based on the mass of palm oil was studied at temperatures ranging from 60 to 80 °C, keeping constant the ethanol to oil molar ratio (6:1). A 100% conversion of palm oil and a 96% yield of FAEE...

Tracer diffusion in a steady state with both velocity and temperature gradients is analyzed. The results are obtained from a kinetic model that incorporates a temperature dependence in the collision frequencies. This allows for the consideration of general r−1-repulsive interactions. An...

This paper examines the Progress Report for Albania’s National Strategy for Socio-Economic Development (NSSED). 2002 was the first year of implementing the NSSED. The implementation process has been oriented toward achieving the annual objectives and in accordance with the program of...