Search results for "Mod"
showing 10 items of 39605 documents
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…
Parametric sensitivity of a CFD model concerning the hydrodynamics of trickle-bed reactor (TBR)
2016
Abstract The aim of the present study was to investigate the sensitivity of a multiphase Eulerian CFD model with respect to relations defining drag forces between phases. The mean relative error as well as standard deviation of experimental and computed values of pressure gradient and average liquid holdup were used as validation criteria of the model. Comparative basis for simulations was our own data-base obtained in experiments carried out in a TBR operating at a co-current downward gas and liquid flow. Estimated errors showed that the classical equations of Attou et al. (1999) defining the friction factors Fjk approximate experimental values of hydrodynamic parameters with the best agre…
Acid–base properties of functionalised tripodal polyamines and their interaction with nucleotides and nucleic acids
2010
Novel, highly positively charged tripodal polyamines with appended heterocyclic moieties revealed an intriguing panel of protonation species within the biologically relevant range. Studied compounds bind nucleotide monophosphates by mostly electrostatic interactions but only the imidazole analogue showed selectivity toward UMP in respect to other nucleotides. Strong binding of all the studied compounds to both ds-DNA and ds-RNA is to some extent selective toward the latter, showing rather rare RNA over DNA preference.
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…
Caracterización bioquímica y funcional de MnmC, una proteína modificadora de tRNA de Escherichia coli
2015
En esta tesis doctoral se ha pretendido conocer aspectos bioquímicos y funcionales de la proteína bifuncional MnmC, modificadora de la U34 en algunos tRNAs del organismo Escherichia coli siempre teniendo en cuenta el marco de la ruta donde actúa (Ruta MnmEG). El primer objetivo fue clonar y expresar cada dominio de MnmC por separado para tener un sistema de estudio de las reacciones que ejercen por separado. Uno de los objetivos más importantes ha sido determinar cómo algunos de los tRNA sustratos de la ruta MnmEG son modificados por la enzima MnmC mediante un estudio comparativo de los dos dominios de la proteína y utilizando técnicas bioquímicas, genéticas y microbiólogicas para obtener d…
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 …
Land surface temperature and evapotranspiration estimation in the Amazon evergreen forests using remote sensing data
2019
Amazonian tropical forests play a significant role in global water, carbon and energy cycles. Considering the relevance of this biome and the climate change projections which predict a hotter and drier climate for the region, the monitoring of the vegetation status of these forests becomes of significant importance. In this context, vegetation temperature and evapotranspiration (ET) can be considered as key variables. Vegetation temperature is directly linked with plant physiology. In addition, some studies have shown the existing relationship between this variable and the CO2 absorption capacity and biomass loss of these forests. Evapotranspiration resulting from the combined processes 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…
Multimodal mediational means in assessment of processes : an argument for a hard-CLIL approach
2022
In Japan, CLIL instruction falls under a soft-CLIL approach, content serving as secondary to language instruction. Furthermore, assessment in classrooms in Japan is oftentimes limited to assessing the product summatively. In the paper, we argue for the value of focusing on content in CLIL activities and assessing the process with the goal to promote learning. The present small-scale study at a Japanese university explored how learners (n = 6) used multimodal mediational means to build their conceptual understanding of ‘Earth breathing’ in order to create a presentation on it for a general English course. The further goal was to explore how inferences made from assessing this process of lear…