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192102135 The influence of distributor structure on the solids distribution and flow development in circulating fluidized beds.  
The influence of distributor structure on solids distribution is studied in two riser circulating fluidized bed reactors with different distributor structures but similar diameters. Optic fibre...
192102134 Steam fingering at the edge of a steam chamber in a heavy oil reservoir.  
The steam-assisted gravity drainage (SAGD) process is one of the key in situ recovery processes being used today to recover heavy oil and bitumen. In this process, steam injected through a...
192102133 Measurement of sliding velocity and induction time of a single micro-bubble under an inclined collector surface.  
In this study, interactions between a gas bubble and a flat solid surface were investigated by determining two dynamic parameters, bubble sliding velocity underneath an inclined solid surface and...
192102132 Catalytic dehydration of lactic acid to acrylic acid over sulfate catalysts.  
The production of acrylates from biomass-originated lactic acid is of extraordinary importance to overcome the increasing worldwide shortage of petroleum. In this work, the catalytic dehydration...
192102131 Optimization by response surface methodology (RSM) for toluene adsorption onto prepared acid activated clay.  
Adsorption of toluene onto acid activated clay was carried out. Modified clay was prepared by acid attack ([H.sub.2]S[O.sub.4]) on raw material. Response surface methodology based on a 2-level,...
192102130 A particle filter approach to identification of nonlinear processes under missing observations.  
A novel maximum likelihood solution to the problem of identifying parameters of a nonlinear model under missing observations is presented. If the observations are missing, then it is difficult to...
192102129 Flow regime determination in horizontal hydrotransport using non-intrusive acoustic probes.  
A variety of flow regimes may be observed in the hydrotransport of solids. Maintaining a consistent operation requires rapid detection of any change in flow regime. The objective of this study was...
192102128 Henry's law constant for hydrogen in high temperature water with dissolved lithium and boron.  
The results of measurement of the Henry's law constant are reported for solutions of [H.sub.2] in [H.sub.2]O, with dissolved lithium and boron, at high temperature (220 to ~300[degrees]C)....
192102127 Notes on the issues of equilibrium in the Fischer-Tropsch synthesis.  
The product distribution for the Fischer-Tropsch synthesis is normally described using the kinetically derived (Anderson-Schultz-Flory) ASF model. Variations of the kinetic model have been...
192102126 Properties of uniaxially stretched polypropylene films.  
Polypropylene (PP) films have been prepared through two different cast extrusion processes: one using a machine direction orientation (MDO) unit and the other stretching the films at the die under...
192102125 Oil-water two-phase flow in microchannels: flow patterns and pressure drop measurements.  
This paper investigates oil-water two-phase flows in microchannels of 793 and 667 [micro]m hydraulic diameters made of quartz and glass, respectively. By injecting one fluid at a constant flow...
192102124 Mathematical modelling of C[O.sub.2] facilitated transport through liquid membranes containing amines as carrier.  
An approximate analytical solution for the facilitated transport of carbon dioxide across a liquid membrane containing aqueous primary and secondary amine solutions has been developed in which the...
192102123 Morphology and deactivation behaviour of Co-Ru/[gamma] [AL.sub.2][O.sub.3] Fischer-Tropsch synthesis catalyst.  
Deactivation of Co-Ru/[gamma]-[Al.sub.2][O.sub.3] Fischer-Tropsch (FT) synthesis catalyst along the catalytic bed over 850 h of time-on-stream (TOS) was investigated. Catalytic bed was divided...
192102122 Synthesis of heterogeneous copper complex catalyst for oxidation of cyclohexane using molecular oxygen.  
Binuclear macrocyclic copper complex was synthesized and bonded ionically to the montmorillonite clay to enhance thermal stability upto 600[degrees]C. The oxidation of cyclohexane using molecular...
192102121 Effect of shaft eccentricity on the laminar mixing performance of a radial impeller.  
The effects of impeller eccentricity and Reynolds number on the mixing performance were studied for Rushton turbine stirred tank systems operated in the laminar regime (Re < 10). A digital image...
192102148 Preamble for special issue honouring John F. MacGregor.  
192102147 Extremum-seeking control of retention for a microparticulate system.  
The operation of a paper machine relies on the close monitoring and control of several integrated units to ensure a high quality paper with the required specifications. In this paper, the...
192102146 Parameter and state estimation in nonlinear stochastic continuous-time dynamic models with unknown disturbance intensity.  
Approximate Maximum Likelihood Estimation (AMLE) is an algorithm for estimating the states and parameters of models described by stochastic differential equations (SDEs). In previous work (Varziri...
192102145 Treatment of missing values in process data analysis.  
Process data suffer from many different types of imperfections. For example, bad data due to sensor problems, multi-rate sampling, outliers, compressed data etc. Since most modelling and data...
192102144 On-line prediction of crystallinity spatial distribution across polymer films using NIR spectral imaging and chemometrics methods.  
A rapid and non-intrusive on-line NIR imaging sensor is developed for monitoring spatio-temporal crystallinity variations across the surface of polymer films. A multivariate image analysis and...
192102143 Control relevant on-line model validation criterion based on robust stability conditions.  
This paper is concerned with detection and diagnosis of modelling error under closed-loop conditions. The effect of modelling error on process output error (which is the error between the process...
192102142 The integration of spectroscopic and process data for enhanced process performance monitoring.  
Batch process performance monitoring has been achieved primarily using process measurements with the extracted information being associated with the physical parameters of the process. With...
192102141 A new method for the detection of microorganisms in blood cultures: Part I. Theoretical analysis and simulation of blood culture processes.  
The physical and chemical changes occurring in blood as a consequence of microbial activity can be used as quantitative indicators of the presence of microorganisms in blood cultures. This paper...
192102140 Local dynamic partial least squares approaches for the modelling of batch processes.  
The application of multivariate statistical projection based techniques has been recognized as one approach to contributing to an increased understanding of process behaviour. The key...
192102139 A generalized approach to demand buffering and production levelling for JIT make-to-stock applications.  
Heijunka is a Just-In-Time scheduling technique that strives to level variety and/or volume over a fixed period in order to maintain low inventories and to avoid excessive batching of product...
192102138 A replicated investigation of nitroxide-mediated radical polymerization of styrene over a range of reaction conditions.  
A comprehensive experimental investigation of nitroxide-mediated radical polymerization (NMRP) of styrene using 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO) as controller is...
192102137 Dynamic evolution of the particle size distribution in suspension polymerization reactors: a comparative study on Monte Carlo and sectional grid methods.  
In the present study, an efficient Monte Carlo (MC) algorithm and a fixed pivot technique (FPT) are described for the prediction of the dynamic evolution of the droplet/particle size distribution...
192102136 Experiences in applying data-driven modelling technology to steelmaking processes.  
Experience has shown that data-driven modelling methods are useful for improving steelmaking processes. In particular, principal components analysis and partial least squares are well-suited for...
192099574 Modelling spatial distributions of moisture and quality during drying of granular baker's yeast.  
A distributed parameter model was developed to predict the drying behaviour of granular baker's yeast by setting up material and heat balances at the particle level. Temperature and moisture...
192099573 Mathematical modelling of an industrial furnace for high-temperature heat treatment of wood.  
There are various high-temperature treatment methods for wood. In the "Bois Perdure" process, the thermal treatment of wood is carried out in a furnace by contacting it with hot combustion gases...
192099572 Binary coalescence of air bubbles in viscous liquids in presence of non-ionic surfactant.  
Coalescence of air bubbles is important in gas-liquid reactors and food processing operations. Bubbles can be stabilized by using non-ionic surfactants. Binary coalescence of air bubbles in...
192099571 The reaction of NiO/Ni[Al.sub.2][O.sub.4] particles with alternating methane and oxygen.  
The reduction and oxidation behaviour of oxygen carrier particles of NiO and Ni[Al.sub.2][O.sub.4] has been investigated in a fluidized bed reactor as well as a thermogravimetric analyzer (TGA)....
192099570 Operation of an industrial steam reformer under severe condition: a simulation study.  
A rigorous two-dimensional model is developed for simulating the operation of a less-investigated type steam reformer having a considerablylower operating Reynolds number, higher tube diameter,...
192099569 Lattice-Boltzmann simulation of sago (metroxylon sagu) starch solutions in porous media.  
From rheological experiments in gelatinized sago starch solution already reported in the literature and a ] Lattice-Boltzmann simulation, we provide some insight into the understanding of the...
192099568 Auto-thermal combustion of lean gaseous fuels utilizing a recuperative annular double-layer catalytic converter.  
The results of the investigations on the auto-thermal combustion of lean gaseous fuels in a recuperative annular double-layer catalytic converter were reported in the current contribution....
192099567 Mechanisms of solids drawdown in stirred tanks.  
Agitated tanks are used in several industrial processes to achieve complete drawdown of floating solids in liquids. The design requirements for this process are not completely defined, and are...
192099566 On the drift-flux analysis of flotation and foam fractionation processes.  
Drift-flux analyses are a common way of estimating the phase fractions and fluxes in vertical multiphase flows. However their use has had scant impact on the flotation and foam fractionation...
192099565 Experimental and numerical study of heat transfer in horizontal concentric annulus containing phase change material.  
In the present research work, solid-liquid phase change heat transfer was studied experimentally as well as numerically for paraffin wax encapsulated in the annulus of two coaxial circular...
192099564 Laminar, transitional and turbulent flow of Herschel--Bulkley fluids in concentric annulus.  
An integrated approach is presented for the flow of Herschel-Bulkley fluids in a concentric annulus, modelled as a slot, covering the full range of flow types, laminar, transitional, and turbulent...
192099563 Horizontal air--water flow in a square cross-section channel: pseudo-slug flow regime.  
New experimental data for air-water flow in a horizontal square cross-section channel (H = 24.25 mm) is presented, including data on liquid hold-up, gas and liquid velocities, and wave velocities...
192099562 Pressure drop and mixing behaviour of non-Newtonian fluids in a static mixing unit.  
Static or motionless mixers have received wide application in chemical and allied industries due to their low cost and high efficiency. The pressure drop and mixing behaviour of such mixers...
192099561 A genetic-algorithm-based optimal scheduling system for full-filled tanks in the processing of starting materials for alumina production.  
Due to the instability of mine sources and the uncertainty of the composition of returned lye and waste liquid, there exists a significant fluctuation of raw slurry quality in the blending process...
192099560 Observations and analysis of electrokinetically driven particle trapping in planar microelectrode arrays.  
In situ observations of submicron fluorescent tracers suspended in high ionic strength media sealed in a confined geometry are combined with 3-D simulations in order to provide a better...
192099559 Determination of minimum speed required for solids suspension in stirred vessels using pressure measurements.  
The minimum speed required for complete suspension ([N.sub.js]) is a major parameter for solids suspension in stirred tanks. Micale et al. 7th UK Conference on Mixing (2002) determined [N.sub.js]...
192099558 Fault diagnosis and fault tolerant control using reduced order models.  
In this work, we have developed a reduced order model relevant for fault diagnosis and control. This model is combined with a generalized likelihood ratio (GLR) method and integrated with fault...
192099557 Carbon dioxide mass transfer to non-linear alkanes.  
In the present article, it has been studied the gas-liquid mass transfer process corresponding to carbon dioxide/2,2, 4-trim ethylpentane (isooctane) and carbon dioxide/cyclohexane systems, and...
192099556 Direct oxidation of hydrogen sulphide to sulphur using impregnated activated carbon catalysts.  
Low concentrations of [H.sub.2]S were directly oxidized to sulphur and small quantities of S[O.sub.2], over seven different activated carbons with or without impregnation. The effectiveness of...
192099555 Ultrasound-facilitated electro-oxidation for treating cyan ink effluent.  
The feasibility of using ultrasonication in combination with the Fenton's reaction was investigated for treating cyan ink effluent. A two-step treatment process was developed--the first step was...
192099554 Flow rate measurement errors in vacuum tubes: effect of gas resistance to accumulation.  
Accumulative flow of gas into a vacuum tube has been studied. An analytical model, based on Fick's second law and assuming a constant diffusion coefficient, has been developed to describe...
192260195 Experimental characterization of the flow pattern in an annular fluidized bed.  
The annular fluidized bed combines a long solids residence time and a good heat and mass transfer. To experimentally characterize the flow pattern in the system, pressure drop and capacitance...

Matches 1 - 50 out of 283 1 2 3 4 5 6 >