A novel single-layer slotted rectangular patch with concave arms is proposed for wideband Limited Editions reflectarrays.The broadband characteristic is realized by combining both bandwidth enhancement techniques, i.e.using multi-resonant element and slotted rectangular patch element.By placing a pair of concave arms beside the slotted rectangular
This study reports on the use of Activity Theory as a supportive framework in a design process.Crews on Fast Oven Lampholder Glass Cover Patrol Boats in the Royal Norwegian Navy were observed during high-speed navigation in coastal waters.The unit of analysis was the navigation team of five persons in their work.Activity was regarded as situated ac
To date, much of the work on mobile and social media in the context of sexual violence has focused on its Butter Dishes threats and harmful effects, particularly in relation to cyber-bullying and other forms of online harassment.But what if we think of such technologies as technologies of non-violence? In this article we make a case for exploring t
An asymmetric image encryption algorithm based on integer wavelet transformation (IWT) and Rivest-Shamir-Adleman (RSA) algorithm is proposed.Firstly, two plain prints characteristic parameters (PCP) of the plain image are extracted and two random numbers are chosen.Then, a new parameter transformation model (PTM) is constructed to do nonlinear proc