Browsing by Subject "Filters and filtration"
Now showing items 21-40 of 74
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Characterization of organic packing materials in the removal of ammonia gas in automated biofilters
(Consejo Superior de Investigaciones Científicas (CSIC), 2005)
Conference report
Open AccessA fully-automated pilot-scale biofilter filled with coconut fiber as packing material was investigatedfor treatment of ammonia-containing off-gas streams. Coconut fiber was completely characterized ... -
Clustering techniques applied to sensor placement for leak detection and location in water distribution networks
(2014)
Conference report
Open AccessThis work presents an optimization strategy that maximizes the leak locatability performance of water distribution networks (WDN). The goal is to characterize and determine a sensor configuration that guarantees a ... -
CMA algoritmos de módulo constante en ecualización adaptativa
(Consejo Superior de Investigaciones Científicas (CSIC), 1986)
Conference report
Open AccessAn adaptative digital filtering algorithm that can compensate for both frequency-selective multipath and interference on constant envelope modulated signals is presented. The reported algorithm adapts the coefficients of ... -
A comparative study based on physical characteristics of suitable packing materials in biofiltration
(2010-02-02)
Article
Open AccessIn the present work, 10 packing materials commonly used as support media in biofiltration are analysed and compared to evaluate their suitability according to physical characteristics. The nature of the packing material ... -
Comparison of different order cumulants in a speech enhancement system by adaptive Wiener filtering
(IEEE Press, 1993)
Conference report
Open AccessThe authors study some speech enhancement algorithms based on the iterative Wiener filtering method due to Lim and Oppenheim (1978), where the AR spectral estimation of the speech is carried out using a second-order analysis. ... -
Comparison of organic packing materials for toluene biofiltration
(Universidade da Coruña, 2005)
Conference report
Open Accesshe paper focuses on the operation of a pilot plant with four biofilters operated in parallel for determining the suitability of coconut fiber, peat, compost from the digested sludge of a wastewater treatment plant and pine ... -
Comparison of removal efficiency of pathogenic microbes in four types of wastewater treatment systems in Denmark
(2018-12-01)
Article
Open Access -
Comparison of time & frequency filtering and cepstral-time matrix approaches in ASR
(1999)
Conference report
Open AccessIn current speech recognition systems, speech is represented by a 2-D sequence of parameters that model the temporal evolution of the spectral envelope of speech. Linear transformation or filtering along both time and ... -
Composition and reversibility of fouling on low-pressure membranes in the filtration of coagulated water: insights into organic fractions behaviour
(2016-11-01)
Article
Open AccessThe primary problem for the application of microfiltration (MF) and ultrafiltration (UF) membrane technology is membrane fouling. Such is the case that understanding membrane fouling has become one of the major factors ... -
Constant variance transversal filtering for adaptive channel equalization
(1989)
Conference report
Open Access -
Continuous metal recovery process using polymer enhanced ultrafiltration
(2007)
Article
Restricted access - publisher's policyThe separation of metals from aqueous streams by continuous polyrner enhanced ultrafiltration (PEUF) was modelled in order to understand, evaluate and optimise the feasibility of the process. The mathematical model ... -
Cross-coupled LMS for quadratic constrained filter design
(Institute of Electrical and Electronics Engineers (IEEE), 1999)
Conference report
Open AccessQuadratic constrained maximization appears as the central problem in many filter design methods and signal processing applications, whenever the processing or filtering entails the maximization of a signal to noise ratio. ... -
Design and implementation of a DVB on-Board multi-carrier demodulator
(1998)
Conference report
Open AccessA description of the signal processing stage of an on-board integrated VLSI multi-carrier demodulator at the demultiplexing level is presented, along with a description of the optimization procedure that has been developed ... -
Design of bandstop filters by reactance transformation
(Institution of Electrical Engineers, 1980-01-31)
Article
Open Access -
Diseño de filtros de microondas mediante la teoría del acoplamiento modal
(Universidad de Sevilla, 1984)
Conference report
Open AccessThe behaviour of several non-independent resonant circuits is approached from coupled mode theory, the formulation of the energy (Hamiltonian) for the system and the Bethe theory for coupling through apertures. The design ... -
Dynamic modelling of ammonia biofiltration from waste gases
(Consejo Superior de Investigaciones Científicas (CSIC), 2005)
Conference report
Open AccessA dynamic model to describe ammonia removal in a gas-phase biofilter was developed. The math-ematical model is based on discretized mass balances and detailed nitrification kinetics that includeinhibitory ... -
Eficacia en la retención de partículas del polvo de madera: tela no tejida frente al tafetán
(Asociación Española de Ingeniería de Proyectos (AEIPRO), 2012)
Conference report
Open AccessEn este estudio se comparan los respiradores convencionales (mascarillas desechables) de tela no tejida frente a otros tipos de tela tejida como el tafetán, con el fin de determinar la eficacia del tejido en condiciones ... -
Electric power generation from combustion in porous media
(2016-09-12)
Article
Restricted access - publisher's policyCombustion of lean air/fuel mixtures in an inert porous medium provides an efficient way to convert chemical energy of hydrocarbons into thermal energy. The porous medium effectively redistributes the heat allowing the ... -
Evaluation of mass transfer coefficients in biotrickling filters: experimental determination and comparison to correlations
(2009-09)
Article
Open AccessOverall mass transfer coefficients (KGa and KLa) were determined experimentally for four different-nature packing materials used in gas-phase biotrickling filters. A simple methodology based on overall mass balances and ...
