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Proton exchange membrane fuel cells (PEMFCs) are highly integrated to include fuel processing, fuel cell stack, associated heat exchangers and/or post-combustion units. The integration is in terms of not only species flows, but also energy balances. This paper presents a simulation approach to analyze and improve PEMFCs stack and heat rejection load on the radiator. It is based on an overall fuel
This paper presents BlueJEP, a novel Java embedded processor, developed using the relatively new Bluespec SystemVerilog (BSV) environment. The starting point for Blue-JEP is a micro-programmed, pipelined, Java-optimized processor (jop), written in VHDL. Our BSV solution features a number of design choices, including a longer pipeline and speculative execution, that make the design more flexible, m
Sphere decoders can approach the performance of maximum-likelihood (ML) decoders for MIMO systems with lower complexity. In this paper, VLSI architecture of the modified K-best Schnorr-Euchner (MKSE) sphere decoder is proposed for soft-output MIMO decoding. The MKSE decoder can achieve near-ML performance with higher decoding throughput and lower computational complexity. The proposed VLSI archite
Även om det är sant att allt blivit mer variabelt, så måste vi trots allt fråga: Vad är konstant och vad är variabelt? Om vi därmed kan se det som inte förändras, i en tid när allt tycks vara under omstöpning, då har vi förutsättningar att se samhällets karaktär. Det gäller också lokalsamhället, hembygden. Sluta för ett ögonblick att tänka på allt i din närhet som förändrats – och allt som kanske
This work investigates the concept of autonomy in three contexts: in constitutional law (SA), in the philosophy of Immanuel Kant (KA) and in the contemporary philosophical discussion on personal autonomy (PA). Tracing the concept of autonomy historically, we highlight similarities and dissimilarities between different definitions. For example, Kant’s account of self-legislation is traced back to S
It is well known that one of the major limitations to achieve good performance in mechanical systems is the presence of friction, which is a nonlinear phenomenon difficult to model. In a recent paper Canudas and co-workers proposed to represent it with a nonlinear dynamical model. The friction compensation problem with this model is stymied by the fact that the parameters are uncertain and some of
