Abstract On the basis of the tight-binding model, we have studied the energy spectra and persistent currents (PCs) in one-dimensional k-component Fibonacci (KCF) mesoscopic rings threaded by a magnetic flux. The KCF structures, which contain k basic units, can be periodic (if k = 1), quasiperiodic (if 1 < k < 6), and intermediate cases between quasiperiodicity and disorder (if k 6). It is shown...

This presentation addresses the standard on Persistent Identification and Sustainable Access (PISA). It explains the usage of the international standard for persistent reference to and management of electronic language resources (ISO 24619:2011) prepared by ISO’s Technical Committee TC37 (Terminology and other language and content resources), Subcommittee SC4 Language resource management). Its ...

Over the last several decades, warming in the Arctic has outpaced the already impressive increases in global mean temperatures. The impact of these increases in temperature has been observed in a multitude of ecological changes in North American tundra including changes in vegetative cover, depth of active layer, and surface water extent. The low topographic relief and continuous permafrost cre...

The paper investigates the value of using distinct vegetation indices to quantify and characterize agricultural crop characteristics at different growth stages. Research was conducted on four crops (corn, soybean, wheat, and canola) over eight years grown under different tillage practices and nitrogen management practices that varied rate and timing. Six different vegetation indices were found ...

This paper presents the design of an architecture for narrative games with story-puzzles like classic graphic adventures. The system is able to create new short stories in each session, combining a basic set of narrative elements in an emergent way but maintaining coherency with the storyline of previous sessions. As a test-bed of this proposal we use a simple detective game inspired on the fam...