Search results for "online"
showing 10 items of 4526 documents
On reliability of systems with moving material subjected to fracture and instability
2015
Abstract The reliability of systems with moving cracked elastic and isotropic material is considered. The material is modeled as a moving plate which continually has a crack on the edge. The plate is subjected to homogeneous tension acting in the traveling direction and the tension varies temporally around a constant value, the set tension. The tension and the length of the crack are modeled by an Ornstein–Uhlenbeck process and an exponential Ornstein–Uhlenbeck process, respectively. Failure is regarded as the state at which the plate becomes unstable or fractures (or both) and a lower bound for the reliability of the system is derived. Considering reliability of the system leads to first p…
Stochastic analysis of the critical velocity of an axially moving cracked elastic plate
2014
In this study, a probabilistic analysis of the critical velocity for an axially moving cracked elastic and isotropic plate is presented. Axially moving materials are commonly used in modelling of manufacturing processes, like paper making and plastic forming. In such systems, the most serious threats to runnability are instability and material fracture, and finding the critical value of velocity is essential for efficiency. In this paper, a formula for the critical velocity is derived under constraints for the probabilities of instability and fracture. The significance of randomness in different model parameters is investigated for parameter ranges typical of paper material and paper machin…
Affective (re)orientations in online discussions on the threat of violence posed by migrants
2020
Online discussions are rife with fear-evoking images and meaning making that highlight a perceived threat to the security of European nations and their inhabitants posed by migrants’ violence in the wake of increased immigration. This paper examines the role of emotions in shaping anti-immigration views as a response to the threat of violence attached to migrants in online conversations. Using a dataset of Finnish online discussion threads from 2015 to 2017 that were prompted by extensive media attention paid to various cases of violent crime in which migrants were suspects, we particularly analyse the affective dynamics of interpellation processes wherein discussants are invited to adopt a…
EVE Online varoņu iemaņu plānotājs
2015
Android lietojumprogramma, kas paredzēta spēlēs “EVE Online” varoņu monitorēšanai un to iemaņu plānošanai. Lietojumprogramma ļauj veidot savienojum ar spēli un iegūt informāciju par spēlētāja kontam piesaistītajiem varoņiem. Pieejama informācija par varoni, tā spējām, tam pieejamajiem resursiem. Iespēja apskatīt spēlēs varoņa epastus. Izmantojot šos datus, lietojumprogramma ļauj veidot iemaņu plānus. Lietotājam, ievadot tikai vēlamos gala mērķus iemaņu kokā, lietojumprogramma sastādīts iemaņu sarakstu, izsekojot visām spēju vajadzībām. Iemaņu saraksts ir diezgan liels, uz doto brīdi 400 iemaņu. Šobrīd spēlētajam jāspēj izsekot 400 spējām, kuras ir atkarīgas no dažādām citām iemaņām, piecos …
Interneta veikals
2016
“Interneta veikals” ir publiska tiešsaistes sistēma, kas sniedz iespēju lietotājam apskatīt produktus, atlasot tos pēc kategorijām, apskatīt produkta detalizēto informāciju, pievienot to grozam, reģistrēties, pieteikties sistēmā, pirkt produktus, apskatīt savu iepirkumu vēsturi un atcelt kādu no pasūtījumiem, ja tas ir nepieciešams. Vietnes administratoram ir iespēja veidot/labot/dzēst kategorijas un produktus, importēt produktus no MS Excel faila, kā arī apskatīt visu lietotāju pirkumus un mainīt statusu kādam no tiem.
Unemployment, Personality Traits, and the Use of Facebook
2021
Different personality traits respond differently to unfavourable life situations. Unemployment can have several negative social, economic, and domestic consequences. Many people use social media for a variety of reasons. The aim of this study is to examine the way different personality traits respond to Facebook in the period of unemployment. Data was obtained from 3,002 unemployed respondents in Nigeria. The study used regression model to analyse the data. Among the five personality traits, results indicated that the relationship between neuroticism and online social support was negative. However, the relationship between online social support and satisfaction was positive. The study highl…
Finite-element design sensitivity analysis for non-linear potential problems
1990
Design sensitivity analysis is performed for the finite-element system arising from the discretization of non-linear potential problems using isoparametric Lagrangian elements. The calculated sensitivity formulae are given in a simple matrix form. Applications to the design of electromagnets and airfoils are given.
Risk factors for internet gaming disorder in a sample of 5,979 italian online gamers.
2020
Introduction: Online gaming is potentially harmful to a group, but not for the entire population, of online gamers. The prevalence varies by geographical areas, however, there are few Italian studies about risk factors for Internet Gaming Disorder (IGD) and its presence among non-occasional gamers. Objectives: This study aimed to describe the presence of IGD in internet gamers who participate in online communities, and how well-established risk-factors can predict it. Methods: Participants were surveyed about their playing habits and other relevant characteristics. IGDS-SF9 diagnosed IGD. TAS-20 measured alexithymia scores, i.e. Difficult in Identifying (DIF) and Describing Feelings (DDF), …
On the critical behavior for time-fractional pseudo-parabolic type equations with combined nonlinearities
2022
AbstractWe are concerned with the existence and nonexistence of global weak solutions for a certain class of time-fractional inhomogeneous pseudo-parabolic-type equations involving a nonlinearity of the form $|u|^{p}+\iota |\nabla u|^{q}$ | u | p + ι | ∇ u | q , where $p,q>1$ p , q > 1 , and $\iota \geq 0$ ι ≥ 0 is a constant. The cases $\iota =0$ ι = 0 and $\iota >0$ ι > 0 are discussed separately. For each case, the critical exponent in the Fujita sense is obtained. We point out two interesting phenomena. First, the obtained critical exponents are independent of the fractional orders of the time derivative. Secondly, in the case $\iota >0$ ι > 0 , we show that the gradie…
Algebras of unbounded operators and physical applications: a survey
2009
After a historical introduction on the standard algebraic approach to quantum mechanics of large systems we review the basic mathematical aspects of the algebras of unbounded operators. After that we discuss in some details their relevance in physical applications.