Optimization of Uniform Amplitude Periodic Linear Phased Arrays for Grating Lobe Reduction

The optimization of mode excitation coefficients in linear periodic arrays of multi-mode antenna elements is studied for grating lobe reduction. A novel beamforming architecture is proposed with a new optimization problem based on equi-amplitude element excitations for optimal power efficiency. The capabilities of the proposed synthesis approach...

The design and testing of an injector for anadvanced hypergolic dual-mode propulsionsystem

An important topic in the field of rocket propulsion is the development of a new green advanced hypergolic rocket propulsion system. The current hypergolic propellants have one large drawback, namely the toxic properties. The injector has a crucial role in the performance of a liquid engine. Therefore, the next step in the development of this...

A 16-Channel CMOS Reconfigurable Recording Unit for Simultaneous In-Vitro Microelectrode Array and Current-Clamp Measurements

In-vitro cell culturing technique is widely used in many branches of science such as in neuroscience and cardiology to investigate the dynamics of large population of cells. Cultured cells can be studied by means of two fundamental recording techniques that are intracellular and extracellular recordings. Patch-clamp technique is the gold...

Dual-mode vehicle routing in mixed autonomous and non-autonomous zone networks

Autonomous vehicles (AVs) are expected to widely re-define mobility in the future, transforming many solutions into autonomous services. Nonetheless, this development requires an expected transition phase of several decades in which some regions will provide sufficient infrastructure for AV movements, while others will not support AVs yet. In...