Mining, discovering, and integrating process-oriented services has attracted growing attention in the recent year. Workflow precedence graph and workflow block structures are two important factors for comparing and mining processes based on distance similarity measure. Some existing work has done on comparing workflow designs based on their precedence graphs. However, there lacks of standard di...

We consider P λ,τ policy of a dam inwhich thewater input is an increasing Lévy process. The release rate of the water is changed from 0 toM and fromM to 0 M > 0 at the moments when the water level upcrosses level λ and downcrosses level τ τ < λ , respectively. We determine the potential of the dam content and compute the total discounted as well as the long-run average cost. We also find the st...

CEP www.cepmagazine.org October 2005 25 The design of a chemical process involves synthesis and analysis. Process synthesis is the overall development of a process flowsheet by combining individual steps (equipment and operating conditions) into an optimal arrangement. Process analysis breaks down the flowsheet to evaluate the performance of each individual element as well as how the overall pr...

We introduce an ACP-style discrete-time process algebra with relative timing, that features the empty process. Extensions to this algebra are described, and ample attention is paid to the considerations and problems that arise when introducing the empty process. We prove time determinacy, soundness, completeness, and the axioms of standard concurrency. 1991 Mathematics Subject Classification: 6...

‎in this paper, we present a two-stage model for ranking of decision making units (dmus) using interval analytic hierarchy process (ahp). since the efficiency score of unity is assigned to the efficient units, we evaluate the efficiency of each dmu by basic dea models and calculate the weights of the criteria using proposed model. in the first stage, the proposed model evaluates decision making...

a method based on machine vision system (mvs) is hereby employed to evaluate grape drying through an assessment of the fruit’s shrinkage and quality during the dehydration. experimental data as well as captured images are obtained at an air velocity of 1.4 m s-1 and different drying temperatures (50, 60, 70ºc). the results indicated the effect of temperature on the moisture content, shrinkage a...

background the unregulated availability and irrational use of tuberculosis (tb) medicines is a major issue of public health concern globally. governments of many low- and middle-income countries (lmics) have committed to regulating the quality and availability of tb medicines, but with variable success. regulation of tb medicines remains an intractable challenge in many settings, but the reason...