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Este trabalho teve como objectivo determinar as características fisico-químicas do músculo Longissimus dorsi de porcos de raça Alentejana destinados à produção de carne para consumo em fresco. Utilizaram-se 15 suínos Alentejanos (sexos neutralizados), que com um peso vivo médio de 37,5 kg foram alojados num parque extensivo com uma área de três hectares e alimentados individualmente com alimento composto comercial (150 g PB e 3107 Kcal ED) fornecido a 85% do Ad Libitum. Aos 90, 100 e 110 kg foram abatidos 5 animais por grupo. O aumento do peso de abate não influenciou significativamente os teores de humidade, proteína e lípidos neutros. Os porcos abatidos aos 110 Kg apresentaram teores de lípidos polares (0,78 %) significativamente inferiores (P<0,05) aos observados aos 100 kg (1,17) e 90 Kg (1,03). O teor em pigmentos decresceu com o ...
Tiivistelmä Teräksen valmistus LD-konvertterissa on perinteisesti pohjautunut ns. staattisiin malleihin konvertteriprosessista eli prosessin aine- ja energiataseisiin perustuvaan panoslaskentaan, jonka avulla konvertterista saatavan raakateräksen koostumus ja lämpötila on pyritty saamaan halutuksi siten, ettei lisäpuhallusta tai ylimääräistä lisäaineseostusta tarvita. Dynaamisella ohjauksella pyritään määrittämään prosessin tila koko puhallusprosessin ajan tai lähellä lopetushetkeä, jolloin voidaan oikea-aikaisesti lopettaa happipuhallus. Dynaamisen ohjauksen mahdollistaa riittävän tarkat prosessimallit ja mittausinstrumentoinnin riittävä laatu. Riittävän tarkkuuden ja käytettävyyden haasteisiin on kehitetty useita uusia tekniikoita, joita on koeteltu oikeissa tehdasoloissa hyvin tuloksin, lupaavimpia näistä ovat tutkalla tehtävä kon...
Tiivistelmä Osaprojekti "LD-KG-konvertterin dynaaminen ohjaus" on osa Oulun yliopiston ja teknillisen korkeakoulun teräskonvertteriprosessin kehittämistä käsittelevää tutkimusprojektia. Oulun yliopiston säätötekniikan laboratorion osuudessa teollisena yhteistyökumppanina on toiminut Rautaruukki Steel, jonka prosessiin tutkimus on keskittynyt. Tutkittavana ongelmana on ollut konvertterin loppupuhalluksen lämpötilahallinta pudotussondia hyödyntäen sekä lisäaineiden vaikutus loppupuhalluksessa. Rautaruukki Steelillä on otettu käyttöön pudotussondilaitteisto, jonka avulla terässulan lämpötila voidaan mitata sulatuksen aikana. Mallin tulisi ennustaa lämpötilan kehitys pudotussondin jälkeen tiettyjen panosparametrien avulla, esimerkiksi panoskoko ja konvertteri, jolla sulatus tehdään. Pudotussondin pudotuksen jälkeen hiilimalli, jota kehit...
"The Allure of Order: High Hopes, Dashed Expectations, and the Troubled Quest to Remake American Schooling." Jal Mehta. Oxford University Press. May 2013. --- Worries about the quality of public schooling in America are not new. Present since the mid-nineteenth century, the issue became a perennial one after 1918, the year in which elementary school attendance became compulsory in every state. The Allure of Order attempts to trace the cyclical efforts to ‘order’ American schooling over the course of the twentieth century, from 1920s reform efforts up through No Child Left Behind and the current school accountability movement. Michael Bassey finds a powerful academic treatise written lucidly which demands a wide readership in this country.
Hypersonic aerothermodynamics for a probe entering a planetary atmosphere is an important issue in space exploration. The probe experiences various Knudsen number regimes, ranging from rarefied to continuum, due to density variation in the planet's atmosphere. To simulate such multiscale ows, a novel hybrid particle scheme is employed in the present work. The hybrid particle scheme employs the direct simulation Monte Carlo (DSMC) method in rareed ow regions and the low diffusion (LD) particle method in continuum ow regions. Numerical procedures in the low diffusion particle method are implemented within an existing DSMC algorithm. The hybrid scheme is assessed by studying Mach 10 nitrogen ow over a sphere with a global Knudsen number of 0.002. Standard DSMC and CFD results are compared with the LD-DSMC hybrid simulation results. Th...
The purpose of this manual is to serve as a self-instructional guide to those who want to convert Winisis archive into greenstone collections with Greenstone digital library software 2.72 independently. The manual can be used as a training hand-out for exposure training that long for one or two days. The basic approach of the manual is to include the essential and easy-to-learn things and to exclude everything else that cannot be learned by new users. In exposure training, please desist from showering a lot of information of complex nature to the new participants who cannot digest all of them. That many dispel some of them from greenstone. Practice reminds that learning happens in the form of layers one over the other. When the first layer is not stable, you cannot build up the subsequent layers. This manual deals with the first laye...
The article begins with the need for librarians to familiarize, learn and utilize new information technologies in handling abundantly available digital documents. It describes briefly about Winisis software and its components. The steps needed to install the software and to create the modifications to be made in the print format are shown, with screenshots as well as description about it, in an easily understandable manner. It concludes that the archive can be converted into a web-application with GenisisWeb software. The archive thus created can be treated as a stable prototype digital library, the creation of which can be learnt so easily. The use of Winisis for digital archiving in our libraries can help in transforming our libraries into knowledge dissemination centres and libraries into knowledge managers.
Want to know more?If you want to know more about this cutting edge product, or schedule a demonstration on your own organisation, please feel free to contact us or read the available documentation at http://www.keep.pt/produtos/retrievo/?lang=en