This extensive review aims to provide a thorough understanding of entropy generation
(Egen) in confined conduits, or enclosures, by examining a vast array of peer-reviewed …

A planar microstrip ring resonator structure on alumina was developed using the commercial
FEM software COMSOL. Design parameters were evaluated, eventually leading to an …

Noble metal/metal oxide nanocomposites are very important in various fields of catalysis
and play an evenly important role in gas sensing. Although there are many similarities …

Recently, a laboratory setup for microwave-based characterization of powder samples at
elevated temperatures and different gas atmospheres was presented. The setup is …

This paper presents the design of a new microstrip gas sensor based on a trapezoidal spiral
resonator covered by a titanium dioxide nanoparticle layer. Reflection and transmission …

Owing to increasingly stringent emission limits, particulate filters have become mandatory for
gasoline-engine vehicles. Monitoring their soot loading is necessary for error-free operation …

Proton transport is an elementary process in the selective catalytic reduction of nitrogen
oxides by ammonia (DeNO x by NH3-SCR) using metal-exchanged zeolites as catalysts …

The three-way catalytic converter (TWC) has become an integral part of the modern exhaust
gas aftertreatment for gasoline engines. Some years ago, radio frequency technology has …

Hydrogen combustion engines can contribute to CO2-free mobility. However, they produce
NOx emissions, albeit only to an extremely small extent when operated very leanly. One …

The radio-frequency (RF) or microwave-based catalyst state determination offers the
opportunity to operate an automotive catalyst at its optimal point. This has already been …