Search results for "Shaping"
showing 8 items of 128 documents
Spatiotemporal beam shaping in nonlinear multimode fibers
2018
Kerr beam self-cleaning in graded-index multimode fibers is accompanied by power-dependent temporal pulse reshaping. We explore the complex nonlinear dynamics with a single long pulse, where the optical power is continuously varied across its profile.
Noise characterization of analog to digital converters for amplitude and phase noise measurements
2017
International audience; Improvements on electronic technology in recent years have allowed the application of digital techniques in phase noise metrology where low noise and high accuracy are required, yielding flexibility in systems implementation and setup. This results in measurement systems with extended capabilities, additional functionalities and ease of use. In most digital schemes the Analog to Digital Converters (ADCs) set the ultimate performance of the system, therefore the proper selection of this component is a critical issue. Currently, the information available in literature describes in depth the ADC features only at frequency offsets far from the carrier. However, the perfo…
Performance evaluation of a measurement-based algorithm for distributed admission control in a DiffServ framework
2002
Distributed Admission Control in IP DiffServ environments is an emerging and promising research area. Distributed admission control solutions share the idea that no coordination among network routers (i.e. explicit signaling) is necessary, when the decision whether to admit or reject a new offered flow is pushed to the edge of the IP network. Proposed solutions differ in the degree of complexity required in internal network routers, and result in a different robustness and effectiveness in controlling the accepted traffic. This paper builds on a recently proposed distributed admission control solution, called GRIP (Gauge&Gate Reservation with Independent Probing), designed to integrate the …
Humanistic education in the vicinty of shaping prosocial behaviour of children and youth
2013
Synthesis and application of orthogonal signal bases possessing enhanced timefrequency localization for mobile wireless networks
2012
Stealth dicing with Bessel beams and beyond
2016
In the context of laser cutting of transparent materials, we investigate glass cleaving with Bessel beams and report that a modification of the beam with 3 main lobes drastically enhances cleavability and reduces defects.
Smart Wireless Sensor Networks and Biometric Authentication for Real Time Traffic Light Junctions Management
2013
The main challenge of intelligent transportation systems (ITS) is to deal with ‘real-time’ information to improve vehicular traffic management. Road data can be processed and used for dynamic traffic light management in order to reduce waiting times in queues. This paper proposes an innovative distributed architecture based on a wireless sensor network (WSN) with a network coordinator providing remote and ubiquitous authentication module for managing unexpected events. The architecture is completed by a dynamic module for street priority management depending on traffic rate. Many experimental trials have been carried out considering three different levels of traffic intensity to prove the e…
Wybrane przykłady realizacji koncepcji miasta-ogrodu oraz możliwości implementacji ich elementów we współczesnej tkance miejskiej
2020
Praca stanowi przekrój myśli urbanistycznej, jaką jest koncepcja miasta- ogrodu. Celem pracy jest przedstawienie sposobu kształtowania współczesnej tkanki miejskiej w odniesieniu do założeń garden city na przykładzie miasta Opole. Obecne tendencje w planowaniu przestrzennym miast zdają się nie uwzględniać szeroko rozumianego krajobrazu jako waloru. Niniejsza praca powstała z myślą o przybliżeniu założeń opartych na zasadzie połączenia środowiska zbudowanego z naturalnym, pokazując, że mogą być one funkcjonalnymi i kompletnymi tkankami miejskimi