Search results for "BED"
showing 10 items of 1605 documents
Les phiales étrusques de type Vetulonia/Colmar de la tomba del carrettino à Ca’ Morta (Côme, Italie) : essai de contre-typologie.
2021
AbstractA new study of the patere baccellate from the Tomba del carrettino at Ca’ Morta offers the opportunity to re-examine the typology of the ribbed bowls of Vetulonia/Colmar type and to re-evaluate their funerary contexts. These vessels appear in central and southern Etruria at the end of the eighth and the beginning of the seventh century BC, the site of Vetulonia being considered as their main production site.Ferdinando Sciacca’s (2005) classification of the ribbed bowls of Vetulonia/Colmar type is supported by solid evidence ; it has advanced the subject significantly, but Sciacca’s model nevertheless raises some questions in terms of the hierarchy of the criteria that were chosen.Du…
Performances of neural networks for deriving LAI estimates from existing CYCLOPES and MODIS products
2008
International audience; This paper evaluates the performances of a neural network approach to estimate LAI from CYCLOPES and MODIS nadir normalized reflectance and LAI products. A data base was generated from these products over the BELMANIP sites during the 2001-2003 period. Data were aggregated at 3 km x 3 km, resampled at 1/16 days temporal frequency and filtered to reject outliers. VEGETATION and MODIS reflectances show very consistent values in the red, near infrared and short wave infrared bands. Neural networks were trained over part of this data base for each of the 6 MODIS biome classes to retrieve both MODIS and CYCLOPES LAI products. Results show very good performances of neural …
Etude numérique du comportement thermique d’un séchoir solaire utilisant un lit thermique pour le stockage d’énergie
2018
This thesis presents a numerical study of an indirect natural convection solar dryer for drying agricultural products (Figs). The first part analyzes a solar dryer containing a drying chamber coupled to a reversed absorber and a solar chimney. Simulations were made to determine the dynamic and thermal fields under the influence of the variation of the solar chimney configuration and the size of the inlet opening. The governing equations based on the standard k-ε turbulence model are solved by the finite volume method using the ANSYS-Fluent commercial code. The second part analyzes the effect of adding a thermal storage in the form of a gravel bed in the drying chamber. The bed is modeled as…
Loneliness Mediates the Relationship Between Early Life Stress and Perceived Stress but not Hypothalamic–Pituitary–Adrenal Axis Functioning
2021
Many authors have proposed that early life stress (ELS) provokes a dysregulation of the hypothalamic–pituitary–adrenal (HPA) axis and contributes negatively to the management of stress in adulthood. However, these associations have not always been observed, making it necessary to include new factors that could explain the different results found. In this regard, people with ELS experiences report less social support during adulthood, suggesting that loneliness could be a mediating factor. Thus, our aims were to investigate whether ELS was related to both perceived stress and diurnal HPA axis activity, and whether loneliness mediates these relationships, in a community sample (N=187, 18–55ye…
Apbedīšanas tradīcijas dienvidrietumu Latvijas teritorijā 1.-7.gs.
2019
Apbedīšanas tradīcijas dienvidrietumu Latvijas teritorijā 1. - 7. gs. Vāvere A., zinātniskais vadītājs Mg.hist. Guščika E., Bakalaura darbs, 58. lpp, Latviešu valodā. Darbā tiek analizēti trīs kapulauki - Rucavas Mazkatuži, Ģeistauti un Vērgales Ošenieki, kapulaukā iegūtais arheoloģiskais materiāls ir salīdzināts ar līdzeno kapulauku ar akmeņu riņķi apbedīšanas tradīciju iezīmēm, to izplatības un izcelsmes kontekstā. Aplūkoti gan kapulaukos sastopamie apbedīšanas tradīciju elementi, gan arī iegūtais senlietu materiāls. Blastoties uz apbedījumu datējumiem veikta telpiskā anlaīze ar mērķi izsekot atsevišķu apbedīšanas tradīciju elementu attīstībai.
Searching for a robust strategy for minimizing alkali chlorides in fluidized bed boilers during burning of high SRF-energy-share fuel
2015
Abstract To meet the increasing volume of waste to be treated via energy recovery, high SRF-energy-share fuel is being fired in conventional waste-to-energy facilities. In this work, corrosion related risk during firing of 70 e-% share (target fuel) is studied and compared against the base case fuel containing 50 e-% share. Cl and S concentration is highest in the target fuel as a direct result of increasing the proportion of SRF in the fuel mixture. Br, Zn and Pb showed the same trend. Meanwhile, the concentration of Na, K, Al and Si are highly dependent on the type of the SRF fired. The corrosion risk of the base and target fuels are analyzed using the composition of the fine aerosol frac…
Development and pilot-scale validation of a fuzzy-logic control system for optimization of methane production in fixed-bed reactors
2018
International audience; The objective of this study was to develop an advanced control system for optimizing the performance of fixed-bed anaerobic reactors. The controller aimed at maximizing the bio-methane production whilst controlling the volatile fatty acids content in the effluent. For this purpose, a fuzzy-logic controller was developed, tuned and validated in an anaerobic fixed-bed reactor at pilot scale (350 L) treating raw winery wastewater. The results showed that the controller was able to adequately optimize the process performance, maximizing the methane production in terms of methane flow rate, resulting in an average methane yield of about 0.29 LCH4 g−1 COD. On the other han…
Vēlā dzelzs laikmeta un viduslaiku sākuma posma skeletkapi Ziemeļkurzemē (9.-14.gs.)
2015
Bakalaura darba mērķis ir izvērtēt un analizēt apbedīšanas tradīcijas un apbedīto etnisko piederību 14 arheoloģiski pētītos vai apzinātos Ziemeļkurzemes kapulaukos ar skeletapbedījumiem- no tiem 11 ar vēlo dzelzs laikmetu datētos (11.-12.gs.) Baltijas somu un trijos ar viduslaiku sākumposmu datētos (13.-14.gs.) kapulaukos. Pētījuma gaitā tiek apstiprināta tēze, ka vismaz astoņos kapulaukos - Tukuma Jaunajā tirgus laukumā, Mežītē, Lībagu Kalneniekos, Laidzes Pēčos, Matkules Lanksēdē, Virbu Zunnās, Lībagu Ķīļos, un Lībagu Lejaslāčos, domājams, ir apbedīti vendi laikposmā no 11.gs. beigām līdz 12.gs. Trīs kapulaukos apbedīto etnisko piederību ar līdzšinējām liecībām konstatēt nav iespējams, be…
Understanding Human-Technology Relations Within Technologization and Appification of Musicality
2020
In this paper, we outline a theoretical account of the relationship between technology and human musicality. An enactive and biocultural position is adopted that assumes a close coevolutionary relationship between the two. From this position, we aim at clarifying how the present and emerging technologies, becoming embedded and embodied in our lifeworld, inevitably co-constitute and transform musical practices, skills, and ways of making sense of music. Therefore, as a premise of our scrutiny, we take it as a necessity to more deeply understand the ways that humans become affiliated to the ever-changing instruments of music technology, in order to better understand the coevolutionary impact …
Understanding Human–Technology Relations Within Technologization and Appification of Musicality
2020
In this paper, we outline a theoretical account of the relationship between technology and human musicality. An enactive and biocultural position is adopted that assumes a close coevolutionary relationship between the two. From this position, we aim at clarifying how the present and emerging technologies, becoming embedded and embodied in our lifeworld, inevitably co-constitute and transform musical practices, skills, and ways of making sense of music. Therefore, as a premise of our scrutiny, we take it as a necessity to more deeply understand the ways that humans become affiliated to the ever-changing instruments of music technology, in order to better understand the coevolutionary impact …