Search results for "push"
showing 10 items of 121 documents
Tuvākā skaidra redzes punkta noteikšanu ietekmējošie faktori
2021
Darbs ir uzrakstīts angļu valodā uz 25 lapaspusēm. Tajā ir 20 attēli, 2 tabulas un 20 literatūras avoti. Darba mērķis ir novērtēt dažādu faktoru – acs zīlītes un stimula izmēra- ietekmi uz tuvākā skaidras redzes punkta novērtēšanu. Tuvākais skaidras redzes punkts tika noteikts ar “push-up” metodi. Mērījumi tika veikti ar stimulu izmēriem 20/20; 20/25 un 20/30 (Snellena frakcija). Acs zīlītes diametrs tika novērtēts, izmantojot šablonu. Rezultāti parādīja, ka, samazinoties stimula izmēram “push-up” metodē, zīlītes diametrs pieaug un tuvākais skaidras redzes punkts attālinās.
ON-LINE CONSTRUCTION OF A SMALL AUTOMATON FOR A FINITE SET OF WORDS
2012
In this paper we describe a "light" algorithm for the on-line construction of a small automaton recognising a finite set of words. The algorithm runs in linear time. We carried out good experimental results on real dictionaries, on biological sequences and on the sets of suffixes (resp. factors) of a set of words that shows how our automaton is near to the minimal one. For the suffixes of a text, we propose a modified construction that leads to an even smaller automaton. We moreover construct linear algorithms for the insertion and deletion of a word in a finite set, directly from the constructed automaton.
Travi reticolari miste- Problemi locali nella trasmissione degli sforzi
2009
Experimental test results on the local behavior of the typical Italian typology of hybrid steel-to-concrete beam are presented and discussed in order to provide insight on transfer mechanism between different components of the beam. Preliminarily, in order to investigate on the bearing capacity of the welding and on the local instability problems that can arise in the trusses before concrete casting, tensile tests on specimens reproducing different types of welded joints, and push-out tests on bare specimen have been performed. Then, the transfer mechanism between steel trusses and concrete is investigated by means of push-out tests carried out also in displacement controlled mode. Results …
Modelli per l'interpretazione dei risultati di prove di push-out su travi reticolari miste
2011
Il comportamento sotto carico delle travi prefabbricate reticolari miste prima della pubblicazione delle nuove norme tecniche sulle costruzioni, veniva solitamente interpretato in analogia a quello di travi in c.a o a quello di travi miste acciao-calcestruzzo classicamente intese. L’esplicito riferimento nelle attuali norme a questa tipologia che viene trattata in un capitolo a parte, ha fatto scaturire l’esigenza di chiarezza e come conseguenza la pubblicazione di Linee Guida emanate dal C.S.LL.PP. che classificano le diverse tipologie in tre categorie: a) strutture composte acciaio-calcestruzzo; b) strutture in c.a. o in c.a.p.; c) strutture non riconducibili alle due categorie precedenti…
Investigating switching intention of e-commerce live streaming users.
2022
As a new way of shopping, e-commerce live streaming (ELS) has gained unprecedented growth and popularity in the past years, especially in China. Because of the considerable rivalry in the ELS market, users frequently switch between ELS platforms. However, the switching intention of ELS users is yet to be explored for gaining new knowledge and practical insights. This study aims to improve the understanding of ELS users' switching intentions by developing an extended Push-Pull-Mooring (PPM) model. Using structural equation modeling, the study model was examined based on 443 valid responses from an online survey questionnaire. SmartPLS 3.3.2 was used to validate the causal model, and most of …
Social factors as the catalyst of emigration
2022
The objective of the study is to address the factors contributing to emigration from Latvia, in particular by highlighting the importance of social factors in the emigration decision, using the theory of push and pull factors of migration as a theoretical basis. The role of the family and the desire to improve not only the economical, but also the social and psychological conditions of families are important factors in the decision-making process, while maintaining links with Latvia. The authors argue that social factors are essential to the migration decision alongside economic factors, and in particular the family situation. The family is a resource that helps to settle in the new country…
The multiple slope discontinuity beam element for nonlinear analysis of RC framed structures
2018
The seismic nonlinear response of reinforced concrete structures permits to identify critical zones of an existing structure and to better plan its rehabilitation process. It is obtained by performing finite element analysis using numerical models classifiable into two categories: lumped plasticity models and distributed plasticity models. The present work is devoted to the implementation, in a finite element environment, of an elastoplastic Euler–Bernoulli beam element showing possible slope discontinuities at any position along the beam span, in the framework of a modified lumped plasticity. The differential equation of an Euler–Bernoulli beam element under static loads in presence of mul…
SiC Power Switches Evaluation for Space Applications Requirements
2016
We have evaluated several SiC power switches available on the market, by defining and performing a global test campaign oriented to Space applications requirements, in order to define their main benefits but also the limits of current SiC technology. This allowed to identify a number of target applications where SiC could be used as a technology push for a new generation of space electronics units. Silicon devices qualified for space systems above 600V for the switches and 1200V for the rectifiers are not available due to performances limitations of Si. Among the typical static and dynamic characterization, we have performed temperature and power stress and HTRB tests. More remarkably, we h…
Arithmetical Analysis of Biomolecular Finite Automaton
2013
In the paper we present a theoretical analysis of extension of the finite automaton built on DNA (introduced by the Shapiro team) to an arbitrary number of states and symbols. In the implementation we use a new idea of several restriction enzymes instead of one. We give arithmetical conditions for the existence of such extensions in terms of ingredients used in the implementation.