Search results for "DUT"
showing 10 items of 583 documents
W and Z boson production in p-Pb collisions at √sNN=5.02 TeV
2017
The W and Z boson production was measured via the muonic decay channel in proton-lead collisions at sNN−−−√=5.02 TeV at the Large Hadron Collider with the ALICE detector. The measurement covers backward (−4.46 10 GeV/c are determined. The results are compared to theoretical calculations both with and without including the nuclear modification of the parton distribution functions. The W-boson production is also studied as a function of the collision centrality: the cross section of muons from W-boson decays is found to scale with the average number of binary nucleon-nucleon collisions within uncertainties. peerReviewed
The MAMI-project
2008
In the energy region up to one GeV the "racetrack"-microtron /1/ offers an economic way to achieve a 100% duty factor e--beam with a high current (IO0~A) and a well defined energy (Ap/p ~ 10-4). Such an e--beam appears to be ideal for the experimental investigation of the nucleus: coincidence experiments of the type (e,e'x) and (e,e'xy) become possible in a wide kinematical region yielding information about the response of the nucleus to the transferred energy and momentum. By the method of bremsstrahl-tagging, for the f i r s t time, rather intensive ( few times 107/sec) photon beams with high monochromaticity and well known fluxes wi l l be available. To make the best use out of such new …
First results from MAMI
1993
Abstract The 100% duty factor electron accelerator MAMI (Mainzer Mikrotron) has gone into operation. First experiments with quasi-monochromatic real photons have been performed. First results, mostly preliminary, are presented.
Weight loss induces changes in adaptive thermogenesis in female and male physique athletes
2023
Physique athletes lose substantial weight preparing for competitions, potentially altering systemic metabolism. We investigated sex differences in body composition, resting energy expenditure (REE), and appetite-regulating and thyroid hormone changes during a competition preparation among drug-free physique athletes. The participants were female (10 competing (COMP) and 10 nondieting controls (CTRL)) and male (13 COMP and 10 CTRL) physique athletes. COMP were tested before they started their diet 23 weeks before competing (PRE), during their diet one week before competing (MID), and 23 weeks after competing (POST), whereas CTRL were tested at similar intervals but did not diet. Measurement…
El cumplimiento de la obligación
2021
Il saggio offre una sintetica panoramica sulla disciplina italiana dell'adempimento e sulle principali questioni interpretative sorte negli ultimi anni. Lo studio intercala l'esposizione del diritto italiano con il confronto con il diritto colombiano delle obbligazioni. La seconda parte è dedicata ad alcune delle questioni dogmatiche più rilevanti, a partire dalla nozione di adempimento e dalle teorie sull'oggetto dell'obbligazione. The essay offers a concise overview of the Italian discipline of performance and the main interpretative issues that have arisen in recent years. The study intersperses the exposition of Italian law with the comparison with Colombian law of obligations. The seco…
Spazi e attività economiche nell’architettura domestica della Sicilia greca: osservazioni sull’evidenza archeologica, a partire dal caso di Himera
2018
While the functional analysis of houses is increasingly adopted, even in the archaeology of Sicily, as a tool useful for understanding the ancient way of life and the changing attitudes towards the ‘private’ space from the Early Archaic to Late Hellenistic times, it is mainly based on the architectural layout and on the physical characteristics of the buildings, or sometimes on a tiny selection of the findings. The possibility of analysing the activities concerned with production and commerce, and of appreciating the economic role of the domestic units, is consequently hardly limited. An useful case study is the town of Himera, due to the extension of the residential districts. So, a multif…
Identification of a Hammerstein model for DC/DC converters operating in CCM
2005
This paper deals with a method for identification of a Hammerstein model of DC-DC converters operating in continuous conduction mode (CCM). This model has the duty cycle and the output voltage as input and output, respectively; it consists of a static nonlinearity and a linear and time-invariant model. The aim of the modeling the system by means of a Hammerstein model is due to its capability of describing the converter in a range of steady-state operating points instead of a desired well defined operating point as occurs for the small-signal models which are the more common mathematical description to approach the study of the converters themselves. The nonlinear characteristic of the Hamm…
Nonlinear Modeling of DC/DC Converters Using the Hammerstein's Approach
2007
This paper deals with the modelling of highly nonlinear switching power-electronics converters using black-box identification methods. The duty cycle and the output voltage are chosen, respectively, as the input and the output of the model. A nonlinear Hammerstein-type mathematical model, consisting of a static nonlinearity and a linear time-invariant model, is considered in order to cope with the well-known limitations of the more common small-signal models, i.e. the entity of the variations of the variables around a well-defined steady-state operating point and the incorrect reproduction of the steady-state behavior corresponding to input step variations from the above steady-state operat…
Benedykt XVI o terroryzmie
2019
BENEDICT XVI ON TERRORISMIn Benedict XVI’s reflection on terrorist acts an unequivocally negative attitude towards them appears, regardless of the motives behind the armed actions. In this rather difficult problem for his contemporaries, he studied the premises responsible for the escalation of aggression and violence in various parts of the world, as well as their consequences for individual states and societies. The sources of acts of terror in the current reality were found in ideologies of extreme religious, as well as religious or even anti-religious backgrounds, of which ardent supporters try to impose by force or propaganda their dictatorship on certain social communities or office h…
Application of circuit theory for extraction of water from oil
2011
This paper discusses optimization of the performance of a pulsed dc electrostatic coalescer, a device that is used in the oil industry to increase the speed of separation of water from a water-in-oil emulsion. A previously found criterion for optimum performance, the charge hypothesis, is reviewed. Analysis by circuit theory shows that the performance may be improved through selecting an optimum switching frequency and duty ratio, improving the design of the pulse train generator, and making physical modifications to the coalescer apparatus. The addition of an external charging circuit is beneficial. Experiments on the modified system could contribute to a better understanding of the physic…