Search results for "DWI"
showing 10 items of 529 documents
Stability of solution for Rao-Nakra sandwich beam model with Kelvin-Voigt damping and time delay
2022
This paper deals with stability of solution for a one-dimensional model of Rao?Nakra sandwich beam with Kelvin?Voigt damping and time delay given by ??1?1?????? ? ??1?1?????? ? ??(??? + ?? + ??????) ? ?????????? ? ??????????( ? , ?? ? ??) = 0, ??3?3?????? ? ??3?3?????? + ??(??? + ?? + ??????) ? ?????????? = 0, ????????? + ?????????????? ? ????(??? + ?? + ??????)?? ? ?????????? = 0. A sandwich beam is an engineering model that consists of three layers: two stiff outer layers, bottom and top faces, and a more compliant inner layer called ?core layer?. Rao?Nakra system consists of three layers and the assumption is that there is no slip at the interface between contacts. The top and bottom lay…
Induced smoothing in LASSO regression
The thesis is being carried out with the National research Council at the Institute of Biomedicine and Molecular Immunology "Alberto Monroy" of Palermo, where I am a fellow, under the supervision of MD Stefania La Grutta. Our research unit is focused on clinical research in allergic respiratory problems in children. In particular, we are interested in to assess the determinants of impaired lung function in a sample of outpatient asthmatic children aged between 5 and 17 years enrolled from 2011 to 2017. Our dataset is composed by n = 529 children and several covariates regarding host and environmental factors. This thesis focuses on hypothesis testing in lasso regression, when one is interes…
An FPGA based Topological Processor Prototype for the ATLAS Level-1 Trigger Upgrade
2012
By 2014 the LHC will collide proton bunches at 14TeV with an increased instantaneous luminosity up to 3·10³⁴cm⁻²s⁻¹. The resulting higher event rate will challenge the existing ATLAS trigger system. A reduction on the trigger rate can be achieved by selecting interesting channels based on their expected decay topology and thus reducing background. This will be achieved by introducing of a new FPGA based module in the Level-1 trigger: the Topological Processor L1Topo. With L1Topo it will be possible for the first time to concentrate detailed information from the entire calorimeters and the muon detector into a single module. L1Topo will receive a total aggregate bandwidth of 1Tb/s. The data …
Ultrascale+ for the new ATLAS calorimeter trigger board dedicated to jet identification
2018
To cope with the expected increase in luminosity at the Large Hadron Collider in 2021, the ATLAS collaboration is planning a major detector upgrade to be installed during Long Shutdown 2. As a part of this, the Level 1 trigger, based on calorimeter data, will be upgraded to exploit the fine granularity readout using a new system of Feature EXtractors (FEXs), which each reconstruct different physics objects for the trigger selection. The Jet FEX (jFEX) is one of three FEXs and has been conceived to identify small/large area jets, large area tau leptons, missing transverse energy and the total sum of the transverse energy. The use of the latest generation Xilinx Field Programmable Gate Array …
Sapiehowie i Wielkie Księstwo Litewskie w rękopiśmiennej pracy Nicolasa-Louisa Le Drana „Histoire de la vacance du trône de Pologne en 1696 après la …
2022
Nicolas-Louis Le Dran był urzędnikiem-archiwistą, w którego kompetencjach leżało dbanie i opracowywanie na potrzeby dworu królewskiego dokumentów dotyczących francuskich spraw zagranicznych. Znany jest on ze swojej działalności na rzecz budowy i rozbudowy francuskiego archiwum spraw zagranicznych. Odegrał także kluczową rolę w systemie służb archiwalnych w dobie panowania Ludwika XV. Analizowana rękopiśmienna praca obejmuje nie tylko lata 1696–1697, ale również wydarzenia ze stycznia kolejnego roku. Francuski archiwista, tworząc swoje dzieło dotyczące bezkrólewia 1696–1697, miał określony cel, zapewne związany z koniecznością przedstawienia skomplikowanego procesu wyboru króla w Rzeczypospo…
Metallatomsynthese, Eigenschaften und Struktur von μ 2 ‐(η 3 ,η 3 ‐Toluol)bis[(η 6 ‐toluol)eisen](Fe‐Fe)
1995
Metal Atom Synthesis, Properties, and Structure of μ2(η3,η3-Toluene)bis[(η6-toluene)iron](Fe-Fe) Metal atom cocondensation of iron atoms and toluene produces the mononuclear iron sandwich compound [(η6-toluene)(η4-toluene)Fe] 1. Complex 1 reacts with a palette of N-containing ligands such as primary, secondary, and tertiary amines as well as pyridine, pyrrolidine, and tmeda to form highly reactive instable intermediates. In the temperature range from -80 to -30°C, the proposed intermediates react with toluene to form the first homoleptic Fe/toluene complex μ2-(η3η3-toluene)-bis[(η6-toluene)iron](Fe-Fe) (3) regardless which N-containing ligand is used. Additionally, 3 is also formed when eth…
Near IR stationary wave Fourier transform lambda meter in lithium niobate: multiplexing and improving optical sampling using spatially shifted nanogr…
2021
Several integrated optics solutions currently exist to develop monolithic, robust, and lightweight high-resolution spectrometers for spatial applications. An interesting option is generating a stationary wave inside a single-mode waveguide, and sampling the interference fringes using dielectric discontinuities on the surface of the waveguide. This allows the recording of the signal on a detector on top of the waveguide, and using dedicated Fourier transform methods to recover the spectrum of the source. All the difficulty is then linked to the length of the interferogram that is sampled. This determines the spectral resolution and the spacing between sampling centers, which are ultimately l…
Katalog der dritten baltischen landwirtschaftlichen Ausstellung zu Riga, im Jahre 1880
1880
Inhalt: I. Theil. Gruppirung nach fortlaufender Schnuppen- und Ordnungsnummern ; II. Theil. Gruppirung nach Prämiirungs-Kategorien ; III. Theil. Alphabetisches Verzeichniß der Aussteller nebst Angabe ihrer Ausstellungsobjecte.
Performance and Implementation Modeling of Gated Linear Networks on FPGA for Lossless Image Compression
2020
Over recent years, imaging systems have seen explosive increase in resolution. These trends present a challenge for resource-constrained embedded imaging devices. Efficient image compression is essential to reduce bandwidth consumption and to increase the capability of on-board storage. Especially, for imaging systems where information loss is not allowed, for example, in medical, military and remote sensing imaging systems. This paper explores the use of Gated Linear Networks (GLNs) for development of embedded lossless compression systems. GLNs have proved themselves via PAQ archiver series, that have been ranked among the top across several lossless compression benchmarks. We propose an a…
Low-risk isn’t no-risk: Perinatal treatments and the health of low-income newborns
2019
We investigate the effects of perinatal medical treatments on low-income newborns who are classified as low-risk. A policy rule in The Netherlands states that low-risk deliveries before week 37 should be supervised by physicians and later deliveries only by midwives with no physician present. This creates large discontinuities in the probability of receiving medical interventions only physicians are allowed to perform. Using a regression discontinuity design, we find that babies born slightly before the week-37 cutoff are significantly less likely to die than babies born slightly later. Our data suggest that physician supervision of birth reduces the likelihood of adverse events such as fet…