Search results for "Sst"
showing 10 items of 538 documents
Calibration and Validation of Thermal Infrared Remote Sensing Sensors and Land/Sea Surface Temperature algorithms over the Iberian Peninsula
2017
La Temperatura de la Superficie Terrestre (TST) y la Temperatura de la Superficie del Mar (TSM) son parámetros clave en los procesos físicos de intercambio de energía entre la superficie y la atmósfera. La TST/TSM están directamente relacionadas con el espectro Infrarrojo Térmico (TIR) que constituye la principal fuente de emisión de radiación de la superficie terrestre. El control de los datos térmicos se puede realizar con la Calibración Vicarea (VC) para, de esta forma, garantizar la calidad de los datos una vez el sensor a bordo de satélite está en órbita. Normalmente, la validación directa de los algoritmos de TST y la VC del espectro térmico se realiza con datos in-situ en tierra, mie…
Imbalanced Job Polarization and Skills Mismatch in Europe
2016
Abstract This paper considers the education of the labour force based on an analysis of trends in and the relationships between job polarization and skills mismatch. Both job polarization and skills mismatch have become topics of increasing interest, but relationships between the two have been relatively neglected in the literature. We argue that the relationship between polarization and skills mismatch is an empirical matter, which we analyse at both the macroeconomic and microeconomic level in European countries. A novel job polarization index (JPI) is proposed to measure imbalanced job polarization. It takes into account not only the change in the share of medium-level jobs, as is typica…
Teacher Educators’ Professional Identity in English-Medium Instruction at a Finnish University
2021
Publisher Copyright: © 2021, University of Ljubljana. All rights reserved. Although different forms of English-medium instruction (EMI) are being recognised, the different ways in which EMI can impact the pedagogical activities and expertise of higher education educators have received less attention. Using face-to-face and written interviews with nine teacher educators at a Finnish university, this study examines the most important aspects teacher educators perceive in their work through EMI and how these aspects connect to the understanding of their professional identity. The study is theoretically premised on the interconnected concepts of pedagogical doing, pedagogical being, pedagogical…
Effect of the metal dilution on the thermal and light-induced spin transition in [FexMn1−x(bpp)2](NCSe)2: When T(LIESST) reaches T1/2
2008
International audience; The thermal and light-induced spin transition in [FexMn1−x(bpp)2](NCSe)2 (bpp = 2,6-bis(pyrazol-3-yl)pyridine) has been investigated by magnetic susceptibility, photomagnetism and diffuse reflectivity measurements. These complexes display a thermal spin transition and exhibit the light-induced excited spin state trapping (LIESST) effect at low temperature. For each mixed-crystal system, the thermal spin transition temperature, T1/2, and the relaxation temperature of the photo-induced high-spin state, T(LIESST), have been systematically determined. It appears that T1/2 decreases with the metal dilution while T(LIESST) remains unchanged, suggesting that the two interco…
A thermal- and light-induced switchable one-dimensional rare loop-like spin crossover coordination polymer
2019
Rare loop-like isostructural one-dimensional coordination polymer (1D-CP) systems formulated as {Fe(DPIP)2(NCSe)2}n·4DMF (1) and {Fe(DPIP)2(NCSe)2}n·4DMF (2) were obtained by self-assembling FeII and pseudohalide NCX−(X = S, Se) ions in presence of the V-shaped bidentate bridging ligand, namely, N,N′-dipyridin-4-ylisophthalamide (DPIP), and were characterized by elemental analysis, IR spectroscopy, TGA, single crystal X-ray diffraction and powder X-ray diffraction. The magnetic studies show that complex 2 undergoes a complete thermally induced spin crossover (SCO) behavior centered at T1/2 = 120 K with ca. 5 K thermal hysteresis loop and light-induced excited spin state trapping effect (LIE…
An unprecedented hetero-bimetallic three-dimensional spin crossover coordination polymer based on the tetrahedral [Hg(SeCN)4]2− building block
2019
[EN] Self-assembly of octahedral FeII ions, trans-1,2-bis(4-pyridyl) ethane (bpe) bridging ligands and [Hg(XCN)(4)](2-) (X = S (1), Se (2)) tetrahedral building blocks has afforded a new type of hetero-bimetallic Hg-II-Fe-II spin-crossover (SCO) 3D 6,4-connected coordination polymer (CP) formulated {Fe(bpe)[Hg(XCN)(4)]}(n). For X = S (1), the ligand field is close to the crossing point but 1 remains paramagnetic over all temperatures. In contrast, for X = Se (2) the complex undergoes complete thermal induced SCO behaviour centred at T-1/2 = 107.8 K and complete photoconversion of the low spin state into a metastable high-spin state (LIESST effect) with T-LIESST = 66.7 K. The current results…
Thermal and optical switching of bistable iron compounds and possible applications
1993
Abstract Iron(II) coordination compounds with ligand field strengths close to the mean spin pairing energy may undergo thermal spin transition in the solid as well as in the liquid state. The thermodynamically stable state is high spin (HS) 5T2 (under Oh symmetry) with (t2)4 e2 electron configuration above the critical transition temperature Tc, and low spin (LS) 1A1 with (t2)6 electron configuration below Tc. The spin transition curve γHS(T) (molar fraction of HS molecules as function of temperature) can be abrupt or gradual, with or without hysteresis, or even with a plateau near Tc. Tc itself can vary over the whole temperature scale between the liquid helium region up to above room temp…
Metastable electronic states induced by nuclear decay and light
1994
Radioactive atoms incorporated in insulating solid-state compounds create various kinds of chemical and physical “after-effects” upon nuclear disintegration. Mossbauer emission spectroscopy of57Co-labelled coordination compounds has undoubtedly become the most informative technique to detect such after-effects like aliovalent charge and spin states of the nucleogenic iron atom resulting from the57Co(EC)57Fe decay, low energy excitations of crystal field and Zeeman states, linkage isomerism, radical formation with subsequent redox reactions, and others. We have extensively studied57Co-labelled complexes with [CoIIN6] cores employing time-integral and time-resolved Mossbauer emission spectros…
Tid og rom for likestilling? : En kvalitativ studie av likestillingsarbeid sett i lys av barnehagens struktur
2017
Masteroppgave pedagogikk PED511 - Universitetet i Agder 2017 Background and purpose of the project The purpose of this study has been to investigate whether structural factors in kindergarten can affect gender equality in the children's group. Status reports from the kindergarten field show that gender equality is proving challenging in practiceand my research aims to look into what may be the reasons for this. Looking at the kindergarten structure, specifically time and space, I wanted to look at the role of time frames and different rooms in the gender equality issue. My research question is: What significance can the kindergarten's structural form have for the implementation of gender eq…
Kvinner på topp : hvem er de og hvordan har de kommet seg dit?
2006
Masteroppgave i offentlig politikk og ledelse 2006 - Høgskolen i Agder, Kristiansand På tross av lover og regler som sikrer likestilling har Norge et av Europas mest kjønnsdelte arbeidsmarkeder. Vi har blant Europas høyest utdannede og yrkesaktive kvinner, problemet er at gutter og jenter i Norge fremdeles tar svært tradisjonelle valg. Denne skjevheten gjelder spesielt blant toppledere og da særlig innenfor næringslivet. Jeg har i denne oppgaven valgt å fokusere på de kvinnene som faktisk har lykkes og i dag besitter topplederjobber i næringslivet. Mitt fokus er på olje- og energisektoren, som er svært mannsdominert. De siste 30 årene har man prøvd å komme med forklaringer på den lave kvinn…