The tight profit margins under which the Chemical Process Industry (CPI) operates are forcing companies to pay more and more attention to the design and operation of their Supply Chains (SC). Traditional approaches available in the Process Systems Engineering (PSE) literature to address the design and operation of chemical SC focus on the process operations side and neglect the financial part o...

Web services over the Internet have become a broadly used concept in a variety of applications for business, science, engineering and entertainment. To this end, this paper also proposes to create a new web service application, PSE-TC — a Problem Solving Environment (PSE) for text categorization that integrates the traditional text categorization system and the novel Grid technologies based on ...

Systems engineering environments usually involve multi-disciplinary engineering domains, such as mechanical, electrical, and software engineering, to cooperate and reach the common goals, e.g., to produce good quality products in time. Validation of systems engineering processes is challenging, because typically there are large numbers of possible combinations of heterogeneous sub-processes to ...

abstract main objective of this paper is to evaluate supportive policies of beef producers during the first, second, third and fourth terms of economic, social, and cultural development plans (1989 - 2008).to evaluate the policies, the producers support estimate(pse) index and other indicators (pse %, npc & nac) were used. furthermore, percentages of pse were calculated in different scenarios o...

Traditional software engineering and information systems engineering is structured into requirements analysis and definition, systems design, systems implementation and testing, and systems operation and maintenance. For web information systems the traditional approach suffers in three obstacles: late integration of architectural decisions, neglecting user expectations, and late implementations...

BACKGROUND Engaging in regular physical activity reduces the likelihood of developing chronic diseases. A community's rates of physical activity are directly connected to its built environment characteristics, which correspondingly affect the chronic disease prevalence of its population. Community planning and design interventions can increase levels of physical activity and reduce chronic dise...

Every expert system must continuously evolve, or it will become obsolete. This paper explores a successive testing process for evolutionary expert systems. The proposed test process is based upon applying software engineering model for overall life cycle of test process. The proposed testing process has two major complementary components: testing and maintenance. Each plays an important role in...

To date, sensitivity, bifurcation and singularity analysis have been employed to identify and characterize the qualitative nonlinear behaviour of chemical process systems. The phenomena of interest include multiple steady states and periodic or even chaotic oscillations. The analyses have been aiming at proper understanding of the relation between the observed behaviour on the one and the proce...