Search results for "AIR"
showing 10 items of 13227 documents
Control of the Development of Swirling Airflow Dynamics and Its Impact on Biomass Combustion Characteristics
2017
Abstract The development of the swirling flame flow field and gasification/ combustion dynamics at thermo-chemical conversion of biomass pellets has experimentally been studied using a pilot device, which combines a biomass gasifier and combustor by varying the inlet conditions of the fuel-air mixture into the combustor. Experimental modelling of the formation of the cold nonreacting swirling airflow field above the inlet nozzle of the combustor and the upstream flow formation below the inlet nozzle has been carried out to assess the influence of the inlet nozzle diameter, as well primary and secondary air supply rates on the upstream flow formation and air swirl intensity, which is highly …
Ars moriendi w "Baśniach" Hansa Christiana Andersena
2016
The author focuses on Hans Christian Andersen’s fairy tales which, in her opinion, became a cultural phenomenon because of ending the civilisation of archetypes, metaphysical and existential truths dating back to the „kindergarten of mankind”. The centre of the article is the motif of death. almost omnipresent in the Danish writer’s works. Death will not spare anyone - this is the thesis argued by the author based on analysis of selected fairy tales by Andersen.
Partial *-Algebras of Operators in a PIP-Space
2009
The family of operators on a pip-space V is endowed with two, possibly different, partial multiplications, where partial means that the multiplication is not defined for any pair A,B of elements of Op(V) but only for certain couples. The two multiplications, to be called strong and weak, give rise to two different structures that coincide in certain situations. In this chapter we will discuss first the structure of Op(V) as partial *-algebra in the sense of [AIT02] and then the possibility of representing an abstract partial *-algebra into Op(V).
General Theory: Topological Aspects
2009
In Chapter 1, we have analyzed the structure of pip-spaces from the algebraic point of view only, (i.e., the compatibility relation). Here we will discuss primarily the topological structure given by the partial inner product itself. The aim is to tighten the definitions so as to eliminate as many pathologies as possible. The picture that emerges is reassuringly simple: Only two types of pip-spaces seem sufficiently regular to have any practical use, namely lattices of Hilbert spaces (LHS) or Banach spaces (LBS), that we have introduced briefly in the Introduction. Our standard reference on locally convex topological vector spaces (LCS) will be the textbook of Kothe [Kot69]. In addition, fo…
Etude de l'impact du contrôle postural associé au port de verres prismatiques dans la réduction des troubles cognitifs chez le dyslexique de développ…
2007
But de l’etude L’objectif de ce travail est d’evaluer l’impact des modifications proprioceptives induites par un traitement postural sur les troubles cognitifs d’une population d’enfants souffrant de dyslexie de developpement. Patients et methodes Il a ete constitue un groupe de 20 enfants dyslexiques traites par prismes posturaux, semelles « de posture » et reeducation posturale, et un groupe temoin de 13 enfants dyslexiques portant uniquement des lunettes sans prismes. Tous les enfants etaient de sexe masculin. Lors de leur inclusion dans l’etude (M0) et 6 mois plus tard (M6), tous les participants ont ete evalues par un bilan ophtalmologique et postural et ont recu un examen neuropsychol…
Passing the test of motherhood? Self‐esteem development and birth experience in the transition to motherhood : A longitudinal mixed methods study in …
2022
Aims To investigate women's childbirth experiences and their relation to self-esteem development in the postpartum year. Design A mixed methods study. Methods Women (N = 125) completed survey questionnaires regarding their self-esteem and childbirth experiences at three time points in 2020–2021: third trimester of pregnancy (T1), 4–8 weeks postpartum (T2) and 1 year postpartum (T3). The survey results were analysed using qualitative thematic and quantitative path analyses with latent change factors. The open-ended answers of the women who demonstrated a change in self-esteem between T2 and T3 were then compared. The STROBE checklist was used as the reporting guideline. Results The quantitat…
Host Searching by Egg Parasitoids: Exploitation of Host Chemical Cues
2010
Insect parasitoids are considered “keystone species” in many ecosystems in terms of biodiversity, ecological impact and economic importance (Vinson 1985, LaSalle and Gauld 1993, Hawkins et al. 1999). In the last decades, several reviews have been published on the relationships among plants, hosts and parasitoids, which reflect a strong interest in these insects both as models for behavioral ecologists and as important organisms for classical and applied biological control programs (Hawkins et al. 1999, Vet 1999, Bale et al. 2008). The majority of these studies have considered the larval parasitoid s, besides the extensive use of egg parasitoids in biological control (Hawkins et al. 1999). I…
Vuorovaikutus alaselkäkipuisten fysioterapiassa - laadullinen systemaattinen kirjallisuuskatsaus
2021
Alaselkäkipu on yleinen vaiva ja yksi merkittävimmistä yksilön toimintakykyä rajoittavista tekijöistä. Kroonistuneen alaselkäkivun kuntoutuksessa suositellaan aktiivista kuntoutusta, jossa yhdistyvät fyysinen harjoittelu ja moniammatillinen biopsykososiaalinen kuntoutus. Biopsykososiaalisessa lähestymistavassa vuorovaikutus ja asiakaskeskeisyys ovat tärkeässä roolissa hoitoon sitoutumiselle ja sen onnistumiselle. Tämän systemaattisen kirjallisuuskatsauksen tavoitteena on selvittää fysioterapeuttien ja alaselkäkivusta kuntoutuvien kokemuksia vuorovaikutuksesta fysioterapiaprosessissa. Kirjallisuuskatsaus ja metasynteesi toteutettiin Joanna Briggs Instituutin prosessin mukaisesti. Haku tutkim…
Systematic conformational search analysis of the SRR and RRR epimers of 7-hydroxymatairesinol
2010
An extensive and systematic conformational search was performed on the two epimers of the natural lignan 7-hydroxymatairesinol (HMR), by means of a home-made Systematic Conformational Search Analysis (SCSA) code, designed to select more and more stable conformers through sequential geometry optimization of trial structures at increasing levels of calculation theory. In the present case, the starting molecular structures were selected by the semi-empirical AM1 method and filtered – i.e. decreased in number by choosing the more stable species – on the basis of their energy calculated by the HF method and the 6-31G(d) basis set. The geometries obtained were further refined by performing densit…
Les théories de la gouvernance : de la gouvernance des entreprises à la gouvernance des systèmes nationaux
2006
(VF)L'objectif de cet article est de faire une synthèse des théories de la gouvernance. Dans la première partie sont présentées les théories micro de la gouvernance en opposant les théories cognitives aux théories diciplinaires. La seconde partie est dévolue aux théories macro de la gouvernance sur la base de la distinction entre les théories fondées sur l'appropriation de la rente organisationnelle et celles accordant un rôle dominant à la production. Cette synthèse met en évidence que la vision financière de la gouvernance n'est qu'un cas très particulier qui présente de nombreuses limites;(VA)The objective of this article is to make a survey of the different corporate governance theories…