Search results for "model."
showing 10 items of 23664 documents
Analiza procesów transportowych w systemach społeczno - terytorialnych w kontekście zjawiska glokalizacji
2017
W artykule przedstawiono wyniki analizy procesów rozwoju regionalnego sektorów TSL (ST) wielkich systemów społeczno -terytorialnych (STS) w kontekście zjawisk globalizacyjnych i glokalizacyjnych.Analiza klasteryzacji terytorialnej i funkcjonalnej jest oparta o modele korelacyjne dynamiki czasowej i zbieżności strukturalno - funkcjonalnej infrastruktury kolejowej jako bazy ST w skalach czasowych – 150, 50 i 30 lat z oceną kwasi - okresowości i zbieżności na zbiorze 56 państw i wielkich STS – hiper-regionów z najbardziej rozwiniętymi ST. Udowodniono zmienność okresowości cykli zbieżności procesów i możliwość identyfikacji STS jako hiper-regionów transportowych.
Minimizing fleet operating costs for a container transportation company
2006
Abstract This paper focuses on a fleet management problem that arises in container trucking industry. From the container transportation company perspective, the present and future operating costs to minimize can be divided in three components: the routing costs, the resource (i.e., driver and truck) assignment costs and the container repositioning costs (i.e., the costs of restoring a given container fleet distribution over the serviced territory, as requested by the shippers that own the containers). This real-world problem has been modeled as an integer programming problem. The proposed solution approach is based on the decomposition of this problem in three simpler sub-problems associate…
Search for photonic signatures of gauge-mediated supersymmetry in 8TeV pp collisions with the ATLAS detector
2015
A search is presented for photonic signatures motivated by generalized models of gauge-mediated supersymmetry breaking. This search makes use of 20.3 fb[superscript −1] of proton-proton collision data at √s = 8 TeV recorded by the ATLAS detector at the LHC, and explores models dominated by both strong and electroweak production of supersymmetric partner states. Four experimental signatures incorporating an isolated photon and significant missing transverse momentum are explored. These signatures include events with an additional photon, lepton, b-quark jet, or jet activity not associated with any specific underlying quark flavor. No significant excess of events is observed above the Stand…
La modellazione della domanda di trasporto per la progettazione ottimale di servizi innovativi in area a domanda debole
2023
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…
Assessment of the importance of neutron multiplication for tritium production
2016
Abstract One of the major requirements for a fusion power plant in the future is tritium self-sufficiency. For this reason the scientific community has dedicated a lot of effort to research activity on reactor tritium breeding blankets. In the framework of the international project DEMO, many concepts of breeding blanket have been taken into account and some of them will be tested in the experimental reactor ITER by means of appropriate test blanket modules (TBMs). All the breeding blanket concepts rely on the adoption of binary systems composed of a material acting as neutronic multiplier and another as a breeder. This paper addresses a neutronic feature of these kinds of systems. In parti…
Kuģu radītā trokšņa izplatības modelēšana Baltijas jūrā ūdens vidē
2019
Darba gaitā pētīta un modelēta trokšņu izplatība Baltijas jūrā ūdens vidē, kas radusies kuģu satiksmes ceļu noslodzes dēļ. Pētījuma laikā veikti mērījumi ar hidrofoniem Baltijas jūrā, kā rezultātā iegūts faktiskais trokšņu piesārņojums kuģu satiksmes dēļ, kā arī modelēti scenāriji pie dažādiem mainīgajiem faktoriem, kā kuģa masas, ūdens blīvuma. Darba mērķis - iegūt pēc iespējas tuvākus modelēšanas rezultātus attiecībā pret faktiski nomērītajiem monitoringa rezultātiem, kā arī identificēt kuģu radīto trokšņu piesārņojuma līmeni. Pētījums sastāv no teorētiskās daļas, kurā veikta literatūras analīze par skaņas izplatību ūdens vidē un dažādu modeļu pielietošanu rezultātu iegūšanai, kā arī prak…
Situational factors shape moral judgements in the trolley dilemma in Eastern, Southern and Western countries in a culturally diverse sample
2022
The study of moral judgements often centres on moral dilemmas in which options consistent with deontological perspectives (that is, emphasizing rules, individual rights and duties) are in conflict with options consistent with utilitarian judgements (that is, following the greater good based on consequences). Greene et al. (2009) showed that psychological and situational factors (for example, the intent of the agent or the presence of physical contact between the agent and the victim) can play an important role in moral dilemma judgements (for example, the trolley problem). Our knowledge is limited concerning both the universality of these effects outside the United States and the impact of …
The Aqua-Planet Experiment (APE): CONTROL SST Simulation
2013
Climate simulations by 16 atmospheric general circulation models (AGCMs) are compared on an aqua-planet, a water-covered Earth with prescribed sea surface temperature varying only in latitude. The idealised configuration is designed to expose differences in the circulation simulated by different models. Basic features of the aqua-planet climate are characterised by comparison with Earth. The models display a wide range of behaviour. The balanced component of the tropospheric mean flow, and mid-latitude eddy covariances subject to budget constraints, vary relatively little among the models. In contrast, differences in damping in the dynamical core strongly influence transient eddy amplitudes…
Depresijas un trauksmes simptomu saistība pieaugušo populācijā
2022
Darba mērķis ir noteikt depresijas un trauksmes simptomu komorbiditāti pieaugušo populācijā Latvijā, un noskaidrot, kuri no depresijas un trauksmes simptomiem šo komorbiditāti veido visvairāk. Pētījuma jautājumi: 1.Kāda ir depresijas un trauksmes simptomu komorbiditātes sastopamība? 2.Kuri no depresijas simptomiem veido saistības ar kuriem no trauksmes simptomiem? Pētījumā piedalījās 1881 respondents (642 vīrieši un 1239 sievietes), kuru vidējais vecums ir 34 gadi. Datu iegūšanai izmantota Depresijas, trauksmes un stresa skala jeb DASS-42 latviešu valodas versija. Pētījumā noskaidrots, ka komorbīdi paaugstināti depresijas un trauksmes rādītāji sastopami 14,9% aptaujāto respondentu. Visām de…