Entrepreneurship is widely believed to be a main source of economic growth. This paper’s objective is threefold: (1) to estimate the impact of entrepreneurship measured by the birth of businesses on urban employment and income growth; (2) to examine how entrepreneurship supported by government guaranteed loans compares with market entrepreneurship regarding its impact on urban growth; and (3) t...

KURMA: Geo-Distributed Secure Middleware for Cloud-Backed Network-Attached Storage

Circularly-polarized antenna is built based on a new SIW (substrate integrated waveguide)structure which contains cavity-backed resonator and a conventional polarized ring with twosquare slits in inner and outer ring that differ 90° at position and is proposed for right-handedcircular polarization (RHCP) and fabricated in two separate layers. A broadband impedancebandwidth of 13.9% and a RHCP a...

Purpose – To outline different versions of a novel method for accurate and efficient determining the dielectric properties of arbitrarily shaped materials. Design/methodology/approach – Complex permittivity is found using an artificial neural network procedure designed to control a 3D FDTD computation of S-parameters and to process their measurements. Network architectures are based on multilay...