This paper examined the efficiency of multivariate linear regression (MLR) and artificial neural network (ANN) models in prediction of two major water quality parameters in a wastewater treatment plant. Biochemical oxygen demand (BOD) and chemical oxygen demand (COD) as well as indirect indicators of organic matters are representative parameters for sewer water quality. Performance of the ANN m...

the quantitative structure-retention relationship (qsrr) of nanoparticles in roadside atmosphere against the comprehensive two-dimensional gas chromatography which was coupled to high-resolution time-of-flight mass spectrometry was studied. the genetic algorithm (ga) was employed to select the variables that resulted in the best-fitted models. after the variables were selected, the linear multi...

objective: pulmonary air-leakage especially pneumothorax (ptx), is a severe complication in neonates. the aim of this study was to assess the predisposing factors and frequency of ptx among the low birth weight (lbw) premature infants, under mechanical ventilation. methods: this cross sectional study was performed in 121 lbw intubated premature infants at neonatal intensive care unit of a child...

The paper shows and includes targeted supervision of optimizing machining parameters. Material Removal Rate surface roughness being integral to efficacy any workpiece , simulation based modeling helps in failure mitigation.Thepotential ANN-GA mathematical approach for prediction optimization MRR AL 6061 a analysis statistical study has been discussed. computational model between the desired out...

Melatonin (MLT) has many health implications, therefore it is important to develop specific analytical methods for the determination of MLT in the presence of its main impurity, N-{2-[1-({3-[2-(acetylamino)ethyl]-5-methoxy-1H-indol-2-yl}methyl)-5-methoxy-1H-indol-3-yl]ethyl}acetamide (DMLT) and pyridoxine HCl (PNH) as a co-formulated drug. This work describes simple, sensitive, and reliable fou...

On the set of 53 trypsin inhibitors the affinity to the covalent bound ligands is modeled using linear (MLR) and non-linear (ANN) methods. Each compound is represented by 343 chemical descriptors. The hypothesis was that linear models are not sufficiently flexible to yield the best model, because in MLR (multiple regression analysis) the number of variables (descriptors) is limited by the numbe...

Alkali-activated products composed of industrial waste materials have shown promising environmentally friendly features with appropriate strength and durability. This study explores the mechanical properties structural morphology ternary blended alkali-activated mortars materials, including fly ash (FA), palm oil (POFA), ceramic powder (WCP), granulated blast-furnace slag (GBFS). The effect on ...

Ecosystem of arid and semiarid regions of the world, much of the country lies in the sensitive and fragile environment Canvases are that factors in the extinction and destruction are easily destroyed in this paper, artificial neural networks (ANNs) are introduced to obtain improved regional low-flow estimates at ungauged sites. A multilayer perceptron (MLP) network is used to identify the funct...