In this study, proton conductive composite membranes were produced by using a poly(methylmethacrylate-co-maleic anhydride) (P(MMA-co-MAH)) copolymer and phosphotungstic Acid (PWA) as an additive of the proton conductive agent. P(MMA/MAH) 70/30, 50/50, and 30/70 were synthesized using a free radical polymerization reaction. PWA with a concentration of 2% was added to...

In their recent paper [2], the authors provided a tool for obtaining the explicit solution of constrained model predictive control (MPC) problems by showing that the control law is a continuous piecewise affine (PWA) function of the state vector. Therefore, the feedback interconnection between the MPC controller and a linear system, or a PWA system (e.g., a PWA approximation of a nonlinear syst...

BACKGROUND Multiple cause-of-death (MCOD) data allow analyzing the contribution to mortality of conditions reported on the death certificate that are not selected as the underlying cause of death. Using MCOD data, this study aimed to fully describe the cause-specific mortality of people with AIDS (PWA) compared to people without AIDS. METHODS We conducted a nationwide investigation based on d...

Ginsberg and Smith [6, 71 propose a new method for reasoning about action, which they term a possible worlds approach (P WA). The PWA is au elegant, simple, and potentially very powerful domain-independent technique that has proven fruitful in other areas of AI [13, 51. In the domain of reasoning about action, Ginsberg and Smith offer the PWA as a solution to the frame problem (What facts about...

We present an algorithm for generating a binary search tree that allows efficient evaluation of piecewise affine (PWA) functions defined on a polyhedral partitioning. This is useful for PWA control approaches, such as explicit model predictive control (MPC), as it allows the controller to be implemented online with small computational effort. The computation time is logarithmic in the number of...

BACKGROUND Aphasia is an acquired language disorder that can present a significant barrier to patient involvement in healthcare decisions. Speech-language pathologists (SLPs) are viewed as experts in the field of communication. However, many SLP students do not receive practical training in techniques to communicate with people with aphasia (PWA) until they encounter PWA during clinical educati...

In this paper, we revisit the lattice representation of continuous piecewise affine (PWA) function and give a formal proof of its representation ability. Based on this, we derive the irredundant lattice PWA representation through removal of redundant terms and literals. Necessary and sufficient conditions for irredundancy are proposed. Besides, we explain how to remove terms and literals in ord...