In many cases economic optimal operation is the same as maximum plant throughput, which is the same as maximum flow through the bottleneck(s). This insight may greatly simplify implementation. In this paper, we consider the case where the bottlenecks may move, with parallel flows that give rise to multiple bottlenecks and with crossover flows as extra degrees of freedom. With the assumption tha...

purpose : the aim of this study was to evaluate the effect of adjuvant treatments on contrast sensitivity in patients with clinically significant macular edema (csme) treated with macular photocoagulation (mpc). methods : forty eight eyes from 30 patients with non-proliferative diabetic retinopathy (npdr) and csme were included in a prospective randomized clinical trial between august 2008 and ...

marginal propensity to consume (mpc) in income groups has a great importance in macroeconomic policy making. but due to some restrictions, such as lack of direct data for income and consumption groups in iran's statistical yearbooks, estimation of mpc for income groups has not been done yet. the purpose of this study is to estimate the mpc for income groups by using the relative permanent incom...

Purpose: To compare the efficacy of Mineral Trioxide Aggregate (MTA) and Modified Portland Cement (MPC) as pulpotomy medicaments in primary molars.   Methods: A sample of 54 children 4 to 6 years old of age, who had at least one primary mandibular second molar that needed pulpotomy were randomly placed in MTA (n = 28) or MPC (n = 26) groups. After completing the pulpotomy procedures, the teeth ...

In dealing with model predictive controllers (MPC), controller tuning is a key design step. Various tuning methods are proposed in the literature which can be categorized as heuristic, numerical and analytical methods. Among the available tuning methods, analytical approaches are more interesting and useful. This paper is based on a proposed analytical MPC tuning approach for plants can be appr...

objective: pmbn, poly [2-methacryloyloxyethyl phosphoryl choline (mpc)-co-n- buthyl methacrylate (bma)-co-p-nitrophenyl- oxycrabonyl poly (ethylene glycol-methacrylate (meonp)], as a biocompatible ter-polymer is a unique polymer with wide range of application from drug delivery systems to scaffolds and biomedical devices. in this research, monomer of p- nitrophenyl- oxycarbonyl poly (ethylene g...