This paper discusses the application of plant-wide control philosophy to enhance the performance and capacity of the Produced Water Treatment (PWT) in offshore oil & gas production processes. Different from most existing facilityor material-based PWT innovation methods, the objective of this work is to propose a software-based breakthrough PWT innovation solution. This is achieved through integ...

Ocean acidification (OA) results in reduced seawater pH and aragonite saturation state (Ωarag), but also reduced seawater buffer capacity. As buffer capacity decreases, diel variation in seawater chemistry increases. However, a variety of ecosystem feedbacks can modulate changes in both average seawater chemistry and diel seawater chemistry variation. Here we model these effects for a coastal, ...

This paper introduces how green marketing influences the sustainable development of garment industry. It analyses the cost and profit to implement green marketing, both in a short term and in the long run. In a short term the cost may increase. However, in the long run, the income will overweigh the cost. There’re five reasons: reduced cost, expanding export by broking down green barriers, esta...

Abstract Objectives Centrifugation is a time-consuming step which increases the turnaround time (TAT) in laboratories. A few studies have addressed effect of altering centrifugation settings on analytical quality for clinical chemistry analytes, and most these used collection tubes with gel separators. However, separator may be unsuitable some laboratories because they are slightly more expensi...

This article reviews from both theoretical and numerical aspects three non-equivalent complete second-order formulations of quantum dissipation theory, in which both the reduced dynamics and the initial canonical thermal equilibrium are properly treated in the weak system-bath coupling limit. Two of these formulations are rather familiar as the time-local and the memory-kernel prescriptions, wh...

In this paper, we use a feedback to change the orientation and the shape of the center manifold of a system with uncontrollable linearization. This change will directly affect the reduced dynamics on the center manifold, and hence will change the stability properties of the original system.

In an increasingly competitive business environment characterized by more globalization, deregulation and technological advances, companies have been looking for ways of differentiating their products and services and also rethinking their business model through leaner operations and reduced costs. In this context, a new practice that has recently gained a lot of attention is the offshore outso...

Two new 14-step and 16-step reduced mechanisms for methane-air combustion were developed with the emphasis on their capabilities to predict NO2 formation. The systematic reduction was carried out by assuming the quasi-steady state for 26~28 species in the starting mechanism with the help of a automatic mechanism reduction code. The two reduced mechanisms reproduce NO2 formation behaviors obtain...