Search results for "ELT"

Modeling of ITER TF cooling system through 2D thermal analyses and enthalpy balance

2017

Abstract The winding pack of the ITER Toroidal Field (TF) coils is composed of 134 turns of Nb3Sn Cable in Conduit Conductor (CICCs) wound in 7 double pancakes and cooled by supercritical helium (He) at cryogenic temperature. The cooling of the Stainless Steel (SS) case supporting the winding pack is guaranteed by He circulation in 74 parallel channels. A 2D approach to compute the temperature distribution in the ITER TF winding pack is here proposed. The TF is divided in 32 poloidal segments, for each segment the corresponding 2D model is built and a thermal analysis is performed applying the corresponding nuclear heating computed with MCNP code considering the latest design updates, such …

Language Reserve. Now! Follow-up on Pyykkö’s Report Multilingualism into a strength (2017) : Summary in English

2021

Ihmisiin viittaavat sanat eteläpohjalaisissa murresanakirjoissa

2007

Kotiteatteriprojekti : teatteri toipumisen välineenä -hankkeen loppuraportti

2018

Hidden charmNandΔresonances with heavy-quark symmetry

2013

c and one c quarks). We analyze several possible sectors and, for the sector with zero net charm, we write down the most general Lagrangian consistent with SU(3) and heavy quark spin symmetry. We explicitly study theN andstates, which are produced from theS-wave interaction of pseudoscalar and vector mesons with 1/2 + and 3/2 + baryons within the charmless and strangeless hidden charm sector. We predict seven odd parityN-like and five �-like states with masses around 4GeV, most of them as bound states. These states form heavy-quark spin multiplets, which are almost degenerate in mass. The predicted new resonances definitely cannot be accommodated by quark models with three constituent quark…

Eigenschaften isomerer Methoxylderivate der phenolischen Mehrkernverbindungen

1971

Es wurden 21 Mehrkernverbindungen hergestellt, deren phenolische Hydroxylgruppen teilweise oder vollstandig methyliert waren. Mit steigendem Methylierungsgrad fallen die Schmelzpunkte der Ather mit einer Ausnahme regelmasig ab. Die molaren dekadischen Extinktionskoeffizienten der Maxima in den UV-Spektren der Ather werden, verglichen mit den Stammverbindungen, mit zunehmendem Methylierungsgrad kleiner. Die zunehmende Methylierung ist im Vergleich mit konstantbleibenden Banden der IR-Spektren an ab- und zunehmenden Banden zu verfolgen. Isomere (metamere) Methylather mit noch freien phenolischen Hydroxylgruppen unterscheiden sich im Schmelzpunkt, in ihren UV- und IR-Spektren. Die Unterschiede…

Sample building orientation effect on porosity and mechanical properties in Selective Laser Melting of Ti6Al4V titanium alloy

2022

Abstract In recent decades, the focus of research has shifted towards new production technologies with the aim of optimizing production and reducing costs. These innovative technologies include additive manufacturing processes as Selective Laser Melting (SLM). The analysis of the literature on the identification of optimal building orientation to maximize the mechanical properties and minimize porosity of the final products highlights contrasting results, denoting that the thermomechanical complexity of the process, as associated with the variation of the building orientation, has not been fully clarified. A study in which the building orientation effect was evaluated together with the geom…

Sairaala taiteen näyttämönä

2023

Suomessa on viime vuosina rakennettu useita uusia sairaaloita ja laajennettu tai peruskorjattu vanhoja. Näihin sairaaloihin on sijoitettu ja hankittu runsaasti taidetta, sillä taiteella on tutkimuksissa osoitettu olevan terveyttä ja hyvinvointia edistävä vaikutus. Sairaaloihin hankittua ja niissä esiteltyä taidetta voidaan kutsua sairaalataiteeksi. Artikkelissa esittelemme, millaista tutkimusta sairaalataiteesta on tehty, pohdimme millaisia taiteen tiloja sairaalat ovat ja millaisia mahdollisuuksia tai haasteita sairaalat tarjoavat taidehistorioitsijoille niin työskentely-ympäristöinä kuin tutkimuskohteina. Artikkelimme empiirinen osuus perustuu havainnointiin neljässä sairaal…

γδ cells and tumor microenvironment: A helpful or a dangerous liason?

2017

Abstract γδ T cells are a subset of T lymphocytes that have been implicated in immunosurveillance against infections and tumors. γδ T cells are endowed with antitumor activities, and hence several γδ T cell-based small-scale clinical trials have been conducted either by in vivo activation by intravenous administration of aminobiphosphonates or by adoptive transfer of in vitro expanded γδ T cells. Although both these strategies have yielded promising results, there are a number of limitations associated with each of them which, if overcome may help to further improve efficacy. One of the most important limits is the possible polarization of tumor-infiltrating γδ T cells toward different γδ T…

The effect of grazing history on fungal diversity in broadleaved wood pastures

2012

Traditional rural biotopes such as wood pastures are species rich habitats which have been created by extensive agriculture. In all European countries both the quality and quantity of traditional rural biotopes have drastically decreased during the past century because of increasing farming intensity. This decline is causing a threat to many species, but very little is known about the conservation ecology of fungi living in wood pastures. Considering vascular plants, it is known that sites with long management history have higher species richness compared to abandoned sites. It is also known that species richness is highest with intermediate grazing intensity. In this study I investigated i…