circularly-polarized antenna is built based on 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 axia...

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...

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...

Defocusing effects in modulation transfer function (MTF) measurement of charge coupled device (CCD) cameras is the main focus of current paper. We introduce measuring Point-spread function (PSF) in order to calculate the MTF and further more we will study the shape of MTF and its cut-off frequency by adjusting the lens focusing in different locations. A collimated white light LED by broadband s...

The fixed broadband market is converging with the world of fixed wireless solutions under the umbrella of broadband wireless. Companies are offering a variety of different service technology options to the market that may compete or work in conjunction with each other to meet user requirements for higher bandwidth lower latency solutions, differing in terms of their degree of mobility, level of...

Voice over IP (VoIP) is a family of technologies, methodologies, communication protocols, and transmission techniques for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. Other terms frequently encountered and often used synonymously with VoIP are IP telephony, Internet telephony, voice over broadband (VoBB), broadband tele...

Broadband access plays a major role for the economic growth, and for the social, and cultural development of urban areas as well as for rural regions. In case of market failure, Public Private Partnerships (PPP), respectively Private Finance Initiatives (so called in the UK), can be a powerful tool to encourage the deployment of information and communication technologies, such as broadband serv...

It is estimated that 2.5 million cats enter animal shelters in the United States every year and as few as 20% leave the shelter alive. Of those adopted, the greatest risk to post-adoption human animal bond is unrealistic expectations set by the adopter. The ASPCAr’s Meet Your Matchr Feline-alityTM adoption program was developed to provide adopters with an accurate assessment of an adult cat’s f...

Binary water mixtures usually display a water relaxation (process II) which can be studied by broadband dielectric spectroscopy (BDS) at subzero temperatures. In a large collection of binary water mixtures, a slight increase of the relaxation strength is observed for low water concentration, whereas a faster increase is seen above a critical concentration. The assumption behind this result is t...

Multicore processors promise dramatic improvements in performance, but their diverse and often unique architectures are a major inhibitor to software adoption. Algorithm libraries that operate at the chip level and are optimized across multiple cores provide the quickest route by which programmers can port or develop highperformance software for multicores. This paper reports on a flexible matr...