Search results for "Core"

Multithreaded Peripheral Processor for a Multicore Embedded System

2012

Multithreaded and multicore architectures represent a good solution used for increasing of parallelism degree exploited in modern computing systems and they can reduce the power dissipated in the chip by using low-frequency clock signals. These advantages recommend these parallel architectures for integration in the embedded systems, with restrictions imposed by the relatively small integration area. Particularities of embedded applications require hardware support able to handling in real time the peripheral interrupt requests. The performance of this hardware influences the performance of the entire parallel system. The current trend is to integrate in one microcontroller more processors …

Redistribution of tax resources: a cooperative game theory approach

2021

AbstractWe consider the problem of how to distribute public expenditure among the different regions of an economic entity after all taxes have been collected. Typical examples are: the regions that make up a country, the states of a federal country, or the countries of a confederation of countries. We model the problem as a cooperative game in coalitional form, called the tax game. This game estimates the fiscal resources collected in each region, or coalition of regions, by differentiating between what comes from economic activity within each region and what comes from trade with the other regions. This methodology provides a measure of the disagreement within a region, or coalitions of re…

Strategic behavior and partial cost sharing

2003

Abstract The main objects here are games in which players mainly compete but nonetheless collaborate on some subsidiary activities. Play assumes a two-stage nature in that first-stage moves presume coordination of some subsequent tasks. Specifically, we consider instances where second-stage coordination amounts to partial cost sharing, anticipated and sustained as a core solution. Examples include regional Cournot oligopolies with joint transportation. We define and characterize equilibria, and inquire about their existence.

Towards micrometer sized core-shell actuators from liquid crystalline elastomers by a continuous flow synthesis

2012

We present here the successful preparation of liquid crystalline core-shell elastomers via a microfluidic double-emulsion process. The customized set-up allows for a temperature-controlled fabrication of the core-shell particles from a thermoresponsive mesogenic monomer. The nematic liquid crystalline shell is filled with a non-mesogenic core of silicone oil. To verify the core-shell structure with optical microscopy, we prepared particles with a colored core using a red dye. We were also able to micro-manipulate the particles and penetrate them with a small glass capillary to extract the liquid core.

Suspended core tellurite glass optical fibers for infrared supercontinuum generation

2011

International audience; We report the fabrication and characterization of tellurite TeO(2)-ZnO-Na(2)O (TZN) microstructured suspended core optical fibers (MOFs). These fibers are designed for infrared supercontinuum generation with zero dispersion wavelength (ZDW) at 1.451 mu m. The measured losses at this wavelength are approximately 6 dB/m for a MOF with a 2.2 mu m diameter core. The effective area of a particular fiber is 3.5 mu m(2) and the nonlinear coefficient is calculated to be 437 W(-1)km(-1). By pumping a 20 cm long fiber at 1.56 mu m with a sub-nj femtosecond laser source, we generate a supercontinuum (SC) spanning over 800 nm in the 1-2 mu m wavelength range.

Chalcogenide glass hollow core photonic crystal fibers

2010

International audience; We report the first hollow core photonic crystal fibers (HC PCF) in chalcogenide glass. To design the required HC PCF profiles for such high index glass, we use both band diagram analysis to define the required photonic bandgap and numerical simulations of finite size HC PCFs to compute the guiding losses. The material losses have also been taken into account to compute the overall losses of the HC PCF profiles. These fibers were fabricated by the stack and draw technique from Te20As30Se50 (TAS) glass. The fibers we drew in this work are composed of six rings of holes and regular microstructures. Two profiles are presented, one is known as a kagome lattice and the ot…

Atvieglojumu Vienotās Informācijas Sistēmas portāla izstrāde

2021

Kvalifikācijas darba mērķis ir izstrādāt Atvieglojumu Vienotās Informācijas Sistēmai (AVIS) administratora lietotāja portālu izmantošanai Valsts Informācijas Sistēmu Savietotājā (VISS). Izstrādājamā sistēmas daļa ir atbildīga par datu atlasi, izveidi, rediģēšanu un attēlošanu lietotājam, izmantojot mikroservisu arhitektūru, kā arī par lietotāju autentifikāciju un autorizāciju izmantojot ārēju identitātes pārvaldības service. Izstrādātajam risinājumam ir jāapmierina AVIS datu apstrādes prasības. Sistēma izstrādāta izmantojot ASP.NET Core ietvaru, C#, Next.JS ietvaru, kas abstrahē React.JS, HTML, CSS, TypeScript, JavaScript kā arī izmantots Groovy, Bash, Docker, Helm, YAML, u.c. nepārtrauktās…

Monolītas sistēmas migrācija uz mikroservisiem

2019

Šobrīd IT uzņēmumos ir sastopamas monolītas sistēmas, kurām jau ir liela lietotāju bāze. Gadiem ejot, šī programmatūra ir tikai augusi un uzņēmumi saskaras ar jauniem izaicinājumiem – kā ātrāk piegādāt funkcionalitāti lietotājam, kā nodrošināt labāku programmatūras kvalitāti, kā padarīt programmatūras izstrādi efektīvāku. Kā viens no risinājumiem ir programmatūras migrācija uz mikroservisiem. Maģistra darba mērķis ir izpētīt mikroservisu arhitektūras īpašības un veikt reālas cilvēkresursu vadības sistēmas migrāciju uz mikroservisiem. Maģistra darbs sastāv no divām daļām – teorētiskās un praktiskās. Teorētiskajā daļā tiek izpētītas un salīdzinātas monolītas sistēmas un mikreservisu arhitektū…

Vascular risk factors in Alzheimer’s disease and Mild Cognitive Impairment: population data from the Zabùt Aging Project

Background: Alzheimer's disease (AD) is the most common cause of dementia in older adults, accounting for about 60% of cases. However, autopsy studies suggested that mixed dementia, with vascular and neurodegenerative AD pathology, accounts for nearly 20% of dementia cases. Aims: Aim of the present study was to evaluate the relationship between isolated or clustered Vascular Risk Factors (VRFs)/diseases and Mild Cognitive Impairment (MCI) or AD. The study was conducted using a Sicilian population-based cohort dataset collected in low-educated, rural subjects, the Zabùt Aging Project (ZAP). The effect-modification by age, sex, education, genetic factor (APOE4 allele carrier), undernutrition,…

The Artek cup for total hip replacement of dysplastic hip joints.

2003

One specific difficulty in total hip replacement for developmental dysplasia of the hip is a shallow acetabulum with a short anteroposterior diameter. In a prospective cohort study we investigated the short-term results of the Artek cup, designed with a shallow outline and a height-reduced metal inlay for a large size 38 mm metal head, in a group of female patients with mild dysplasia of the hip.Fourteen consecutive patients with 17 dysplastic hip joints were included in the study. Their average age was 42 years. Fourteen hips had dysplasia Crowe grade I; 3 hips had dysplasia Crowe grade II. The femoral head centre was localized according to Pagnano in zone 1 in 3 cases, in zone 3 in 6 case…