in this work, the results concerning to the mean activity coefficient measurements for nacl in the (glycerol + water) system using the potentiometric method are reported. the potentiometric measurements were performed on the galvanic cells without liquid junction of the type: ag|agcl|nacl (m), glycerol (wt%), h2o (1 - wt)%|na-ise, in various mixed solvent systems containing 0, 5, 10, 20 and 30 ...

We consider functional responses with network dependence observed for each individual at irregular time points. To model both the interindividual and within-individual dynamic correlation, we propose a varying coefficient (NFVC) model. The response of is characterized by linear combination from its connected nodes exogenous covariates. All coefficients are allowed to be dependent. NFVC adds ric...

This paper provides a study concerning IT value substance in IT-based industries. The applied method is a partial adjustment valuation approach, expressing that the real output is part of the preferred output. Thus, there should be a coefficient between both, which shakes the relationship in between, called a speed of adjustment. To examine the method, this theory experimented six Indonesian IT...

In various applications with large spatial regions, the relationship between response variable and covariates is expected to exhibit complex patterns. We propose a spatially clustered varying coefficient model, where regression coefficients are allowed vary smoothly within each cluster but change abruptly across boundaries of adjacent clusters, we develop unified approach for simultaneous estim...

allocation and removing of excess water from the irrigation and drainage network is one of the most important activities in the management of these networks. side weir is one of the most common structures for this purpose. study on the flow hydraulic characteristics of this structure included two parts, defining the water surface profiles and estimating the discharge coefficient. to estimate th...

a nanocomposite membrane cu2+ ion-selective electrode has been constructed using a new compound ethyl 1,2,3,4-tetrahydro-4-(4-methoxyphenyl)-6-methyl-2-oxopyrimidine-5-carboxylat (etmoc) as a neutral ionophore. the electrode works properly. it responds to cu2+ ion with a sensitivity of 29.5 ± 0.2 mv/decade over the range 1.0 × 10−9 to 5.0 × 10−1m at ph 3.0-8.0. the limit of detection was 4.5 × ...

heat transfer phenomena in batch fluidized bed dryer have been studied and analyzed using three phase model including solid phase, interstitial gas phase and bubble phase based on rizzi model. new correlations of heat transfer coefficient to surrounding and convection heat transfer coefficient between solid and interstitial gas are being proposed. in addition, some modifications have been done ...