Programación eficiente de algoritmos de estimación de parámetros para modelado de amplificadores de RF

An adaptive filter is a device that attempts to model the relationship between signals in real time in an iterative way. Among all the adaptive filters, the most outstanding among them is the Least Mean Square (LMS). Least Mean Square was created in 1960 by Professor Bernand Widrow and his student Ted Hoff. Least Mean Square is used to calculate the coefficients from the desired output signal with the output signal that we obtain from the coefficients that we have calculated. The LMS has several ways to get its coefficients: LMS, NLMS, Sign-LMS, etc. NLMS, normalize the input signal when we calculate coefficients and the Sign-LMS from the input signal, when calculating the coefficients and Sign-LMS from the input signal, error or both at once, where if the number is positive we will give value equal to 1 and if we obtain a negative number, the value is -1. With each form of LMS, we can see who is the fastest when it comes to obtaining coefficients or we can also which one has the least error

Programación eficiente de algoritmos de estimación de parámetros para modelado de amplificadores de RF

An adaptive filter is a device that attempts to model the relationship between signals in real time in an iterative way. Among all the adaptive filters, the most outstanding among them is the Least Mean Square (LMS). Least Mean Square was created in 1960 by Professor Bernand Widrow and his student Ted Hoff. Least Mean Square is used to calculate the coefficients from the desired output signal with the output signal that we obtain from the coefficients that we have calculated. The LMS has several ways to get its coefficients: LMS, NLMS, Sign-LMS, etc. NLMS, normalize the input signal when we calculate coefficients and the Sign-LMS from the input signal, when calculating the coefficients and Sign-LMS from the input signal, error or both at once, where if the number is positive we will give value equal to 1 and if we obtain a negative number, the value is -1. With each form of LMS, we can see who is the fastest when it comes to obtaining coefficients or we can also which one has the least error

Construction of uricase-overproducing strains of Hansenula polymorpha and its application as biological recognition element in microbial urate biosensor

<p>Abstract</p> <p>Background</p> <p>The detection and quantification of uric acid in human physiological fluids is of great importance in the diagnosis and therapy of patients suffering from a range of disorders associated with altered purine metabolism, most notably gout and hyperuricaemia. The fabrication of cheap and reliable urate-selective amperometric biosensors is a challenging task.</p> <p>Results</p> <p>A urate-selective microbial biosensor was developed using cells of the recombinant thermotolerant methylotrophic yeast <it>Hansenula polymorpha </it>as biorecognition element. The construction of uricase (UOX) producing yeast by over-expression of the uricase gene of <it>H. polymorpha </it>is described. Following a preliminary screening of the transformants with increased UOX activity in permeabilized yeast cells the optimal cultivation conditions for maximal UOX yield namely a 40-fold increase in UOX activity were determined.</p> <p>The UOX producing cells were coupled to horseradish peroxidase and immobilized on graphite electrodes by physical entrapment behind a dialysis membrane. A high urate selectivity with a detection limit of about 8 μM was found.</p> <p>Conclusion</p> <p>A strain of <it>H. polymorpha </it>overproducing UOX was constructed. A cheap urate selective microbial biosensor was developed.</p

Aplicatiu Android Monitoratge de Residus Sòlids Urbans

Aplicación móvil basada en Android, con la cual se pretende tener un control en la gestión de la información relacionada con los elementos urbanos que puedan llegar a ser susceptibles de este control (papeleras, contenedores,...)

Use of Diesel in Domestic Stoves

The possible ill effects of using high speed diesel oil (HSDO) in domestic kerosene stoves have been investigated. With wick stove, the use of HSDO results in wastage of fuel, fall in the rate of output of heat, higher consumption of wicks and blackening of vessels. There is negligible adverse effect of using kerosene containing up to 30% HSDO on the performance of a pressure stove (oil pressure 1-2 kg/cm 2) as regards soot formation. Though the thermal efficiency of HSDO is comparable to that of kerosene, stoves in which HSDO or HSDO-keroseneblends are burnt need frequent cleaning and their performance suffers with repeated use

Aplicatiu Android Monitoratge de Residus Sòlids Urbans

Aplicación móvil basada en Android, con la cual se pretende tener un control en la gestión de la información relacionada con los elementos urbanos que puedan llegar a ser susceptibles de este control (papeleras, contenedores,...)