thesIt » softcomputing http://lakm.us/thesit computer science research log in semi microbloging style Tue, 24 Aug 2010 21:34:55 +0000 http://wordpress.org/?v=2.9 en hourly 1 Use of a spectrophotometer for biodiesel … http://lakm.us/thesit/174/use-of-a-spectrophotometer-for-biodiesel/ http://lakm.us/thesit/174/use-of-a-spectrophotometer-for-biodiesel/#comments Thu, 07 Jan 2010 04:15:08 +0000 Arif http://xp-racy.lan/s2/?p=174 Use of a spectrophotometer for biodiesel quality sensing.
Paper number 053133, 2005 ASAE Annual Meeting. Artur Zawadzki, Dev Shrestha, Brian He.

The test procedures to assure ASTM biodiesel quality are not being widely implemented because of the lengthy procedures and laboratory equipment requirements. A critical need in the increasingly emerging biodiesel industry right now is a reliable, affordable and rapid test method for determining the blends of biodiesel in diesel fuel. As an effort to explore a reliable and rapid method, a spectrophotometer was used to scan the blends of #2 fossil diesel and biodiesel for spectrums in the wavelength range of 190-1100 nm.

The shape of the spectrum curve was found to be different for different biodiesel feedstock where as relative absorbance and characteristic peaks of absorbance curve was attenuated with increasing amount of diesel in the blend. Shape characteristics were fed into neural network to predict the biodiesel feedstock and blend level in biodiesel-diesel mixture.

http://asae.frymulti.com/abstract.asp?aid=19829&t=2

]]> http://lakm.us/thesit/174/use-of-a-spectrophotometer-for-biodiesel/feed/ 0 Several techniques such as flame atomic … http://lakm.us/thesit/30/several-techniques-such-as-flame-atomic/ http://lakm.us/thesit/30/several-techniques-such-as-flame-atomic/#comments Sun, 20 Dec 2009 08:21:29 +0000 Arif http://xp-racy.lan/s2/?p=30 Several techniques such as flame atomic absorption and voltammetric methods have been used for the determination of these ions in different samples. The cross-interferences among different metal species often cause problem using these methods, which in turn raise the uncertainty level in the analytical results. Further more, those techniques require expensive instrumentation and maintenance, which limit the application of the techniques in many laboratories.

]]> http://lakm.us/thesit/30/several-techniques-such-as-flame-atomic/feed/ 0 Prediction of Emulsion Stability via a N … http://lakm.us/thesit/9/prediction-of-emulsion-stability-via-a-n/ http://lakm.us/thesit/9/prediction-of-emulsion-stability-via-a-n/#comments Sat, 19 Dec 2009 15:14:32 +0000 Arif http://xp-racy.lan/s2/?p=9 Prediction of Emulsion Stability via a Neural Network-Based Mapping Technique
Ubiratan F. de Souza, Frank H. Quina, and Roberto Guardani
Ind. Eng. Chem. Res., 2007, 46 (15), pp 5100–5107
…These tests are time-consuming and subject to visual inaccuracies between different operators…a neural network-based model is tested as a tool for predicting the emulsification properties of mixtures of surfactants, organic solvents,…

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