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The design, fabrication and characterization of a 2×8 patch antenna array operating in the IEEE 802.11ad frequency band (57–66 GHz) is presented. The design is based on two-layer structures, where the radiating patches placed on top substrate are fed by conductor backed coplanar waveguide (CPW)-fed loop slots, which are placed on the bottom substrate. The top layer is formed by using a low-cost pyrex...
We present the design, microfabrication, and characterization of a multifunctional reconfigurable antenna (MRA) with beam steering capability operating at 60 GHz band (59–66 GHz). The MRA provides 3 different beam directions pertaining to: θ ∊ {−30°,0°,30°}; ϕ = 90° based on reconfigurable parasitic layer approach. The structure consists of three layers namely, feed, driven antenna and reconfigurable...
The Geothermal Communities (GEOCOM) project (www.geothermalcommunities.eu) was launched in 2010 with a vision to increase the visibility of direct heat applications of geothermal energy throughout Europe, where most attention has been paid to power generation alternatives of the same source recently. This 11 million Euro project, funded by the European Union’s Seventh Framework Programme for Research...
Tripping, slipping and falling accidents are among the types of accident with a high incidence. This article describes the requirements concerning slip resistance, as well as the state of the art of slip resistance measurement standards in the European Community and the USA. The article also describes how risk assessment can be performed in the field.
Double podding in cultivated chickpeas (Cicer arietinum L.) can increase yield and yield stability. In the present study, we performed reciprocal crosses of ‘kabuli’ (double podded) and ‘desi’ (single podded) chickpeas to determine (i) the expressivity and penetrance of double podding, (ii) the correlations of yield and yield components, and (iii) the heritability of double podding, flower color,...
With 1 figure and 1 table
AbstractYield of the cultivated chickpea (Cicer arietinum L.) can be doubled when the sowing time is shifted from spring to autumn in the Mediterranean region; however, weeds are one of the most important and unsolved problems in autumn‐sown or irrigated chickpea. To solve weed problem, improvement in herbicide resistance has given priority for effective weed management...
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