This paper presents a wideband dual-polarized filtering antenna with high suppression level and wide stopband. In the proposed antenna, driven patch operates in TM10 mode an inherent radiation null caused by higher TM12. Four dual-strip structures connected feeding probes are placed below to achieve capacitive coupling, thus resulting low-frequency sharp roll-off rate. The introduction of paras...

Articulated liquid cargo vehicles transporting inflammable fuels and dangerous chemical products require special consideration when traveling on urban roads or cruising at highway speeds. The road safety and handling of these kinds of vehicles may be adversely affected when negotiating sharp turns or travelling on slippery roads, which may result in either lateral instabilities or complete roll...

Hierarchically structured flower leaves (petals) of many plants are superhydrophobic, but water droplets do not roll-off when the surfaces are tilted. On such surfaces water droplets are in the "Cassie impregnating wetting state", which is also known as the "petal effect". By analyzing the petal surfaces of different species, we discovered interesting new wetting characteristics of the surface ...

The investigation on the transboundary shipment of used and waste electrical electronic equipment from developed countries is a well-studied subject with regard to environmental health impacts in destination when it reaches end-of-life. Prior research has ranked Ireland 8th highest source (UEEE) into Nigeria, roll-on roll-off (RoRo) vehicles as largest carrier (Odeyingbo 2017). This study prese...

Continuous cyclic bending (CCB) has been proposed as a useful straining technique to produce the high strain on the surface layers and the lower strain in the central layer of the sheet. A pure aluminum sheet is worked by the CCB using the ‘‘Roll traveling device’’ and ‘‘Roll driven machine’’. It is found that a sharp Cube orientation is formed by the CCB and subsequent annealing in the pure al...

Using a principal component (PC) basis that accommodates order unity features in the slow roll parameters as fine as 1/10 of a decade across more than 2 decades of the inflationary expansion, we test slow roll and single field inflation with the WMAP7 data. Detection of any non-zero component would represent a violation of ordinary slow roll and indicate a feature in the inflaton potential or s...