Search results for " Figure"
showing 10 items of 102 documents
Rey-Osterrieth Complex figure performance in patients with degenerative dementia using Boston Qualitative Scoring System
2013
Comparison between two measuring methods for complete characterization of low-noise HEMTs at microwaves
1996
The good performances of a set-up for the complete characterization of HEMTs up to 40 Ghz in terms of noise and scattering parameters through noise figure measurements only are shown by many experimental results. Because of some inconveniences in practice the use of the method is suggested for research laboratories only. For industrial applications an alternative symplified method is proposed whose performances are shown to be in surprising agreement with the ones of the standard method.
Proposal of Up-to-Date Standards on Methods of Measuring Noise Parameters of Microwave Transistors
1994
One of the most interesting topics for microrwave community is the characterization of low-noise transistors. After so many years, the Standards suggested by IEEE in 1960 are considered obsolete by the experimenters. A new methodology is here proposed as a standard. To support this proposal, an original measuring system for the complete characterization of microwave transistors in terms of noise, gain and scattering parameters from noise figure measurements only is presented.
Reyn kuvio (Rey-Osterrieth Complex Figure, ROCF) toiminnanohjauksen mittarina
2008
Ercole e il serpente. Figure di ricordo, modelli mitici, modelli etici nel "de beneficiis" di Seneca
2009
THE MAIN PORTAL OF THE CATHEDRAL OF MONREALE: FIRST GEOMETRIC ANALYSIS AND INTERPRETIVE ASSESSMENT OF ARCHITECTURAL FEATURES
2017
Abstract. Nowadays, 3D documentation of architectural assets is becoming a demanding task for the valorisation of Cultural Heritage especially after a restoration project. The 3D documentation can be used for detailed analysis of specific elements, for monitoring the state of conservation and for valorisation actions. The paper describes the results of the 3D close-range photogrammetry survey of the main portal of the Cathedral of Monreale (Palermo, Italy). The Cathedral is one the most important monumental complexes in Sicily that, for its high historical and artistic importance has been inscribed on UNESCO’s World Heritage List since 2015. The main portal of the Cathedral has been recentl…
About some psychological variables correlated with dogmatism
1983
The relationships between dogmatism and some perceptual-cognitive, personality, and attitudinal indices were investigated for 40 men and 40 women. Dogmatism scores correlated negatively with the scores in Witkin's Group Embedded Figures Test and on the Flexibility scale from Gough's California Psychological Inventory. Correlations were positive for a favorable attitude towards concepts like Discipline, Obedience, Social order, measured by the semantic differential. Some incongruities between obtained data and Rokeach's (1960) findings are pointed out.
Temperature Dependence of pHEMT-Based LNA Performance for VSAT Applications
1994
From a complete characterization in terms of noise and scattering parameters carried out at room temperature in the 8-16 GHz frequency range, the noisy small-signal model of a pseudomorphic HEMT series has been extracted. The transistor scattering parameters have been subsequently measured at lower temperatures (down to -50 °C) by placing the device text fixture in a thermo-controlled chamber. An accurate noisy model has then been extracted by determining the circuit element values at the different temperatures. The trade-off performance of a pHemt-based LNA for VSAT receiver system applications has been investigated vs. frequency and temperature.
The ethos of conviviality. From the table to the tablet
2012
Manifestée d’abord dans l’espace physique et symbolique de la table et associée au plaisir de partager de bons mets, la convivialité se déplace aujourd’hui dans de multiples espaces de la vie sociale : les relations quotidiennes, les conditions de travail, le rapport aux objets. À cet égard la convivialité prend une place tout à fait significative dans les usages des interfaces numériques. Ainsi s’opère le glissement sémiotique et pragmatique de la convivialité, de la table à la tablette, avec le maintien de propriétés substantielles de cette valeur de confiance et de bien-être et des conversions figuratives de sa manifestation dans de nouveaux espaces. C’est le cas, notamment, de la gare c…
Bimodal Approach for Noise Figures of Merit Evaluation in Quantum-Limited Josephson Traveling Wave Parametric Amplifiers
2022
The advent of ultra-low noise microwave amplifiers revolutionized several research fields demanding quantum-limited technologies. Exploiting a theoretical bimodal description of a linear phase-preserving amplifier, in this contribution we analyze some of the intrinsic properties of a model architecture (i.e., an rf-SQUID based Josephson Traveling Wave Parametric Amplifier) in terms of amplification and noise generation for key case study input states (Fock and coherents). Furthermore, we present an analysis of the output signals generated by the parametric amplification mechanism when thermal noise fluctuations feed the device.