Aims. We investigate the dissipation of the bulk kinetic energy of a relativistic jet at different distances from the central power–house and analyse in detail how the dissipated energy is radiated away. Methods. We assume that the location of the dissipation region is a function of the bulk Lorentz factor Γ of the jet, being closer to the center for smaller Γ. This assumption is naturally fulf...

Minimizing energy dissipation has emerged as the key challenge in continuing to scale the performance of digital computers. The question of whether there exists a fundamental lower limit to the energy required for digital operations is therefore of great interest. A well-known theoretical result put forward by Landauer states that any irreversible single-bit operation on a physical memory eleme...

This paper presents a new low-power Threshold Logic family featuring self lock-out and run-time reprogrammability. The simulated results have shown that, the proposed Threshold Logic dissipates between and less power and between and less energy, at , when compared with previous similar Threshold Logic families. Moreover, at , it has between and less energy and between and ! less dissipated powe...

This paper proposes a macroscopic model for ferromagnetic hysteresis that is well-suited for finite element implementation. The model is readily vectorial and relies on a consistent thermodynamic formulation. In particular, the stored magnetic energy and the dissipated energy are known at all times, and not solely after the completion of closed hysteresis loops as is usually the case. The obtai...

This paper proposes a macroscopic model for ferromagnetic hysteresis that is well-suited for finite element implementation. The model is readily vectorial and relies on a consistent thermodynamic formulation. In particular, the stored magnetic energy and the dissipated energy are known at all times, and not solely after the completion of closed hysteresis loops as is usually the case. The obtai...

One of the possible techniques to reduces the power consumption in digital CMOS circuits is to slow down the charge transport. This slowdown can be achieved by introducing an inductor in the charging path. Additionally, the inductor can act as an energy storage element, conserving the energy that is normally dissipated during discharging. Together with the parasitic capacitances from the circui...

We present a model for the viscous friction in foams and concentrated emulsions, subject to steady shear flow. First, we calculate the energy dissipated due to viscous friction inside the films between two neighboring bubbles or drops, which slide along each other in the flow. Next, from this energy we calculate the macroscopic viscous stress of the sheared foam or emulsion. The model predictio...

Warm mix asphalts (WMA), because of their low production and compact temperatures, may have different behaviors in long term. In the present work, the energy-based criteria along with the 50% reduction in initial stiffness (Nf50%) using four-point bending test under controlled-strain conditions of 1000 microstrain were applied to compare the prepared two warm mix and HMA samples. All these crit...

A theory about the energy consumption of algorithms realized in CMOS, presented in related work, makes it possible to calculate the minimal amount of energy dissipated for the execution of an algorithm. The rendering of a dense dataset with three variants of the Volume Rendering algorithm wi11 be considered as an example of~e methodology. The absolute lower bound of the energy consumption is ca...