the role of the ventromedial nuclei of the hypothalamus (vmn) in food behavior was studied in adult male rats, allocated in 3 groups: control, sham and lesioned. electrolytic lesions were induced stereotaxically (1.2 ma, 15 sec). results revealed a significant decrease (p

Substantial improvements in engine fuel e ciency torque and reduction of emissions are available with cam less actuation capable of continuous control of engine valve lift duration and timing A phenomenological model has been developed for an unthrottled operation that is key to e ciency gain An adaptive nonlinear controller has been designed to coordinate intake valve lift and duration by usin...

This paper addresses the problem of cylinder burned gas rate transient control of VVA equipped Diesel engines. This problem is of importance for NOx emissions reduction. The proposed strategy coordinates existing low-level intake manifold burned gas rate and VVA controllers. To determine relevant control actions, a model of cylinder filling phenomenon is determined. It expresses, under the form...

Compressed Natural Gas (CNG) is an affordable fuel with a higher octane number. However, older CNG kits without electronic controls have the potential to supply more when driving downhill due vacuum in intake manifold. Therefore, this article presents development of control system that accommodates road inclination angles improve efficiency. Machine learning involved work process engine speed, ...

This study presents a semi-empirical modeling approach based on an extensive parametric using spark-ignition port-injection engine. The experimental results are used to derive engine-out emission models for each regulated pollutant (CO, HC, NOx) as function of engine operating parameters. Such parameters include speed, intake manifold pressure, equivalence ratio, and spark advance. proposed pro...

‎Using Nehari manifold methods and Mountain pass theorem‎, ‎the existence of nontrivial and radially symmetric solutions for a class of $p$-Kirchhoff-type system are established.