Browsing by Subject "Filters and filtration"
Now showing items 1-20 of 80
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A comparative study of the characteristics and physical behaviour of different packing materials commonly used in biofiltration
(Universidade da Coruña, 2007)
Conference report
Open AccessIn this study, the characteristics and physical behaviour of 8 different packing materials were compared. The materials were selected according to previous works in the field of biofiltration including organic and inorganic ... -
A distributed arithmetics architecture for quantization SNR improvement based on LUT recoding
(Servicio de Publicaciones Universidad de Vigo, 1999)
Conference report
Open Access -
A first assessment of an aerodynamic barrier layer for filtering airborne hygroscopic particles
(2021-09-01)
Article
Open AccessIn this work consideration is given to an aerodynamic concept for filtration of small water droplets such as those caused by an infected person when coughs or sneezes and including airborne hygroscopic particle, and with ... -
A method for filtering large conceptual schemas
(Springer, 2010)
Conference report
Restricted access - publisher's policyWe focus on the problem of filtering a fragment of the knowledge contained in a large conceptual schema. The problem appears in many information systems development activities in which people need to operate with a piece ... -
A multiplicative Schwarz method with active subdomains for transient convection-diffusion problems
(2009-02-04)
Article
Open AccessAn efficient algorithm to find the solution of transient convection–diffusion problems with dominant convection is presented. The main idea is to follow the solution front and activate those subdomains where the solution ... -
A new method to obtain information about the pore size distribution in microporous polymeric membranes
(2008-03)
Article
Restricted access - publisher's policyTransport measurements of selected fluids through porous membranes provide information on precise statistical moments of the membrane pore-size distribution (PSD). It is assumed that membrane porosity, ~T,is distributed ... -
A new non-linear system for estimating and suppressing narrowband interference in PN spread spectrum modulation
(1998)
Conference report
Open AccessThis work develops a novel dynamic fuzzy logic system that, based on a fuzzy basis function expansion, successfully solves the non-linear problem of narrowband interference prediction and rejection in DS-SS. A fuzzy basis ... -
A novel architecture to model non-linear systems
(1994)
Conference report
Open AccessThis paper shows a new architecture specially thought to model non-linear systems (NLSs). At first, it was applied only to memoryless systems but then it developed to solve a more general problem, NLSs with memory. The ... -
A statistical reference criterion for adaptive filtering
(Institute of Electrical and Electronics Engineers (IEEE), 1996)
Conference report
Open AccessA cost function for adaptive filtering is proposed, based on the statistical reference criterion. The purpose of this criterion is to enforce a given probability density function at the output of a system. The only ... -
A tool for filtering large conceptual schemas
(Springer Verlag, 2011)
Conference lecture
Restricted access - publisher's policyThe wealth of knowledge the conceptual schemas of many real-world information systems contain makes them very useful to their potential target audience. However, the sheer size of those schemas makes it difficult to extract ... -
Acumulació de sòlids a aiguamolls construïts. Relació amb el procés de clogging
(Universitat Politècnica de Catalunya, 2010-05-20)
Minor thesis
Open AccessLa construcció d’aiguamolls per al tractament d’aigües residuals urbanes en poblacions petites es posà en auge cap a la dècada dels anys 70. Aquests sistemes de tractament permeten obtenir una bona qualitat d’aigua depurada ... -
An adaptive spectral estimator based on the predictive innovation process and Kalman filtering
(1980)
Conference report
Open Access -
Analysis and reduction of the distortions induced by time-domain filtering techniques in network analyzers
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1998-08-31)
Article
Open AccessThe removal of isolation errors plays an essential role in the calibration process of radar scattering measurements. One of the most common techniques used for that purpose is time-domain filtering, also known as gating. ... -
Assessment of the symmetry-preserving regularization model on complex flows using unstructured grids
(2012-05-15)
Article
Restricted access - publisher's policyThe main objective of the present paper is the assessment of symmetry-preserving regularization models on unstructured meshes. Three different test cases have been studied: the impinging jet flow, the flow past a circular ... -
Biofiltration of WWTP sludge composting emission at contact times of 2 to 8 seconds
(2013)
Conference report
Open AccessThe performance of a biotrickling filter for the abatement of composting emissions was evaluated at short contact times of 2 to 8 seconds. The effect of EBRT, pH control and water renovation rate were evaluated. The ... -
Biomass accumulation in a biofilter treating toluene at high loads – Part 1: Experimental performance from inoculation to clogging
(2012-10-15)
Article
Open Access -
Biomass accumulation in a biofilter treating toluene at high loads – Part 2: Model development, calibration and validation
(Elsevier, 2012-10-15)
Article
Open AccessIn this work, a dynamic model describing volatile organic compounds abatement and the corresponding biomass accumulation is developed, calibrated and validated. The mathematical model is based on detailed mass balances ... -
Blind wideband source separation
(1994)
Conference report
Open AccessThis paper deals with the general problem of separating two independent wideband sources when they are mixed by unknown filters. In order to solve this problem, a backward framework is proposed which is composed of two ... -
Case study: organizational aspects of the lean implementation at SOGEFI Filtration plant of Cerdanyola del Vallès, Spain
(2012-03-16)
Research report
Open AccessLean management strategy is widely adopted by automobile industry companies –between many others- to achieve high performance standards. An in deep implementation of lean management involves organizational aspects. Some ... -
CDHMM speaker recognition by means of frequency filtering of filter-bank energies
(1997)
Conference report
Open AccessRecently, the set of spectral parameters of every speech frame that result from filtering the frequency sequence of mel-scaled filter-bank energies with a simple first-order high-pass FIR filter have proved to be an efficient ...
