Search results for "LESS"

Providing QOS in 3G-WLAN environment with RSVP and DIFFSERV

2006

Here we present the end-to-end QoS mechanism in 3G-multiaccess network environment. As multi-access wireless WLAN and wired xDSL wideband multi-access technologies has emerge and become more popular a need for interoperability with different technologies and domains has become necessity. There is also a need for end-to-end QoS management. We show a scenario where the UE-GGSN connection is covered by RSVP and RAN network part uses partial over dimensioning and real-time controlled ATM queuing. DiffServ covers WLAN-Core QoS and radio interface between WLAN AP and WLAN UE uses IEEE's 802.11e. Our interest is to find out how well 3G traffic classes can survive in different traffic conditions in…

L'intreccio della dimensione personale e professionale nella formazione dei giovani formatori. Il ruolo dei linguaggi artistici e della danzamoviment…

2011

Constrained-Design of Passive UHF RFID Sensor Antennas

2013

Passive UHF RFID tags may be used, beside labeling, to remotely observe the physical/chemical change of the tagged object, through modulation of their impedance and gain, thus acting as sensor antennas. The design of this new class of devices can be mastered by fully understanding the relationship between communication and sensing with the purpose to balance the maximization of the dynamic range of the response with the stability of the read distance. A new kind of communication/sensing nomogram permits to display both behaviors in a unitary way and to predict their physical limits, as well as to formalize a multi-parameter general-purpose optimization methodology. The procedure is demonstr…

Passive UHF RFID antennas for sensing applications: Principles, methods, and classifcations

2013

UHF passive radio-frequency identification technology is rapidly evolving from simple labeling of things to wireless pervasive sensing. A remarkable number of scientific papers demonstrate that objects in principle can have their physical properties be remotely tracked and monitored all along their life cycle. The key background is a new paradigm of antenna design that merges together the conventional communication issues with more-specific requirements about sensitivity to time-varying boundary conditions. This paper presents a unified review of the state of the art of the tag-as-sensor problem. Particular care is taken to formalize the measurement indicators and the communication and sens…

PRIME RIFLESSIONI SUL RECLAMO E LA MEDIAZIONE

2012

"L'art. 39, comma 9, del d.l. 6/7/2011 n. 98, conv. con modificazioni nella legge 15/7/2011 n. 111, ha introdotto l'art. 17 bis al decreto legislativo n. 546 del 1992, con il quale è stato creato l'istituto del reclamo e della mediazione, che si applica agli atti emessi dall'Agenzia delle Entrate notificati a decorrere dal primo aprile 2012. Il presente articolo propone delle prime riflessioni sugli aspetti più rilevanti dell'istituto soffermandosi , particolarmente, sulla sua natura giudica e sul procedimento previsto dalla disposizione istitutiva, anche alla luce delle interpretazioni fornite dalle circolari emante dall'Agenzia delle entrate".

DAL NEONATO ALL'ADOLESCENTE. NOVITA' E VECCHI PROBLEMI: RMN cranio-encefalica

2014

Intervento sul ruolo della RM cranio-encefalica nell'età evolutiva.

The transcription reinitiation properties of RNA polymerase III in the absence of transcription factors

2007

AbstractTranscription reinitiation by RNA polymerase (Pol) III proceeds through facilitated recycling, a process by which the terminating Pol III, assisted by the transcription factors TFIIIB and TFIIIC, rapidly reloads onto the same transcription unit. To get further insight into the Pol III transcription mechanism, we analyzed the kinetics of transcription initiation and reinitiation of a simplified in vitro transcription system consisting only of Pol III and template DNA. The data indicates that, in the absence of transcription factors, first-round transcription initiation by Pol III proceeds at a normal rate, while facilitated reinitiation during subsequent cycles is compromised.

Topology design to reduce energy consumption of distributed graph filtering in WSN

2017

The large number of nodes forming current sensor networks has made essential to introduce distributed mechanisms in many traditional applications. In the emerging field of graph signal processing, the distributed mechanism of information potentials constitutes a distributed graph filtering process that can be used to solve many different problems. An important limitation of this algorithm is that it is inherently iterative, which implies that the nodes incur in a repeated communication cost along the exchange periods of the filtering process. Since sensor nodes are battery powered and radio communications are one of the most energy demanding operations, in this work, we propose to redesign …

Mechanically stable metal layers for ohmic and blocking contacts on CdZnTe detectors by electroless deposition

2015

CdZnTe detectors are commonly exploited for the detection of gamma rays. However, obtaining mechanical stable, low noise contacts on CdZnTe is still an issue. In particular, ohmic contacts would be preferable for high flux applications. In this work, we show that it is possible to obtain mechanical stable gold contacts by electroless deposition in methanol solution. Moreover, we show that electroless deposited nickel contacts are also mechanical stable and are good candidates for the realization of ohmic contacts on high resistivity CdZnTe crystals.

The effect of Water on passive cooling systems in the Arab-Norman architecture of the Zisa Palace in Palermo

2019

This paper shows the theories argued by some historians with reference to the working of natural water passive cooling systems employed in the Zisa Complex. Albeit such theories are seminal attempts to understand passive water systems, they have no scientific evidence. This study instead concentrates on a more rigorous treatment that enabled to set up a robust framework for designing a historical water passive system such as the Salsabil, which in fact was conceived and developed in an empirical way. Several historical buildings of the Mediterranean and Middle Eastern architecture include relevant artefacts useful to control humidity and temperature through water passive systems . The archi…