concentrations of elements (as, co, cu, ni, mo, pb, v, cd, cr and zn) are studied in the surface sediments of bakhtegan lake, northwest of nyriz city, iran, to assess metal contamination. the average abundance order of trace elements content in bakhtegan lake sediments is cr>ni> v> zn> cu> co> as> pb> mo>cd. the comparison of trace elements concentration in bakhtegan lake sediments with toxicol...

frictional shear stress is usually determined by utilizing the coefficient of friction or the constant friction factor models. the present study deals with finite element analysis of double cup extrusion process to determine the relationship between constant friction factor (m) and coefficient of friction (µ), since the metal flow in this process is very sensitive to frictional conditions. ther...

assessing the quality of groundwater is important to ensure the sustainablesafe use of these resources. however, describing the overall water quality condition isdifficult due to the spatial variability of multiple contaminants and the wide range ofindicators (chemical, physical and biological) that could be measured. therefore, in thiscase study, some water quality parameters including na, mg,...

background: pleurisy is a common extra pulmonary complication of tuberculosis, but current methods for diagnosing it are fairly crude. here we product a meta-analysis for the available evidence on the ability of tumor necrosis factor-? (tnf-?) in pleural fluid to serve as a diagnostic marker of tuberculous pleurisy (tp). materials and methods: we searched the pubmed, embase, and google scholar ...

introduction: this paper proposes an appropriate strategy for exporting hepatitis b vaccine, manufactured by pasteur institute of iran, to other countries. methods: eeffectiveness factors and their relative variables were found out by factor analysis method in spss software. results: we could identify 6 main factors which can extremely affect the export of this product. we evaluated manufacture...

This paper presents a technique to design switching gainscheduling controllers for plants with time-varying parameters. Given a desired L2-gain, the proposed method divides the parameter set into several subsets, and designs a robust controller for each subset. The method can achieve higher performances than traditional gain-scheduling controller design methods. A numerical example shows the ef...

Consider a domain-adaptive supervised learning setting, where classifier learns from labeled data in source domain and unlabeled target to predict the corresponding labels. If classifier’s assumption on relationship between domains (e.g. covariate shift, common subspace, etc.) is valid, then it will usually outperform non-adaptive classifier. its invalid, can perform substantially worse. Valida...

The problem of detection of multiple compbex sinusoidals, with uncertain parameters, is addressed in this paper. It is shown that uncertainties in amplitude and small uncertainties in frequency can be handled analytically, while unknown phases must be handled numerically. Robust detectors for some or all of the uncertainties are formulated. Performance in noise, and robustness are evaluated thr...