In contrast to outdoor localization where everything is based on GPS, there is no comparable system for indoor localization. Only a few expensive tag based systems like Ubisense [1] are available for purchase. Recent development in this field is mainly focused on radio based systems. Unfortunately, all radio based systems require some sort of tag to be attached to the localized object. This may...

In the frame of unification schemes for radio-loud active galactic nuclei (AGNs), FR I radio galaxies are believed to be BL Lacertae (BL Lac) objects with the relativistic jet misaligned to our line of sight, and FR II radio galaxies correspond to misaligned radio quasars. The Ledlow-Owen dividing line for FR I/FR II dichotomy in the optical absolute magnitude of host galaxy–radio luminosity (M...

In this paper, we propose two approaches to protect privacy in the 'Digitally Named World', which is the environment in which 'radio frequency ID's (RFIDs) are attached to any objects in the world, and any objects in the real world can be found by the readers of the RFIDs and the networked database system. One is the approach to conceal the permanent ID under a private ID that users give. The o...

We link the lack of FR I type structure among quasars to the void of radio loud quasars below a critical disk luminosity of 10 46 erg/sec in the PG sample. We argue that the opening angle of the obscuring torus in radio loud quasars depends on the power of the central engine, approaching the jet's beaming angle near the FRI/FR II break. Consequently, low power radio quasars would either be clas...

one of the modern paradigms to develop an application is object oriented analysis and design. in this paradigm, there are several objects and each object plays some specific roles in applications. in an application, we must distinguish between procedural semantics and declarative semantics for their implementation in a specific programming language. for the procedural semantics, we can write a ...

Abstract The article presents the analysis of results electronic educational resources development in field “Radio Engineering”, registered by authors Ryazan State Radio Engineering University after V.F. Utkin United Foundation Electronic Resources «Science and Education». Under epidemic constraints, higher education system is faced with need to provide distance or blended learning, no loss qua...

We show that a dual-population unification scheme provides a successful paradigm with which to describe the evolution and beaming of all bright extragalactic radio sources. The paradigm consists of two intrinsic radio-source populations, based on the two distinct radio-galaxy morphologies of Fanaroff-Riley classes I and II. These represent the 'unbeamed' or 'side-on' parent populations of steep...

We link the lack of FR I type structure among quasars to the void of radio loud quasars below a critical disk luminosity of ∼ 10 erg/sec in the PG sample. We argue that the opening angle of the obscuring torus in radio loud quasars depends on the power of the central engine, approaching the jet’s beaming angle near the FR I/FR II break. Consequently, low power radio quasars would either be clas...

We report our preliminary results on the role of starbursts in LINERs by use of WR galaxies as a tool. The essence of this approach lies in the different FIR-radio relation of WR galaxies from the pure AGN's. The energetics of LINERs has been a controversial issue since their definition by Heckman (1980). In recent years, several LINERs have been observed by HST, or large ground-base facilities...