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    Wyświetlanie 1-13 z 13
    Tytuł:
    Defining the semantics of rule-based Web applications through model-driven development
    Autorzy:
    Canadas, J.
    Palma, J.
    Túnez, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/907818.pdf
    Data publikacji:
    2011
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    systemy regułowe
    aplikacja sieciowa
    model-driven development
    rule-based systems
    web applications
    Opis:
    Rule languages and inference engines incorporate reasoning capabilities to Web information systems. This paper presents an approach for the specification and development of Web applications performing the usual functionalities of data management and incorporating a rule engine for reasoning capabilities. The proposed approach is based on the definition of a high-level representation of the semantics of rule-based applications through a formalism for conceptual modeling combining lightweight ontologies and production rules. These models are used as the source for a model-driven method that applies several transformations to conceptual models generating the rule-based Web application code in an automatic process. As a result, the rule-based Web application embeds a rule engine suitable for deducing information by applying an inference process. The structure of the information managed by the Web application is based on ontology classes, whereas the logical expressions applied in reasoning are obtained from production rules of the model. A rule-based Web application has been developed and evaluated using a supporting tool that implements the ideas presented in this paper.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2011, 21, 1; 41-55
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effects of dietary components on intestinal short-chain fatty acids (SCFAs) synthesis in healthy adult persons following a ketogenic diet
    Autorzy:
    Gudan, A.
    Skonieczna-Zydecka, K.
    Palma, J.
    Drozd, A.
    Stachowska, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/2083085.pdf
    Data publikacji:
    2022
    Wydawca:
    Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
    Tematy:
    ketogenic diet
    intestinal microbiome
    short-chain fatty acid
    roteolytic fermentation
    dieta ketogenna
    mikrobiom jelitowy
    krotkolancuchowe kwasy tluszczowe
    CFAs
    fermentacja proteolityczna
    Opis:
    Background. The ketogenic diet (KD) has been used for almost 100 years in the treatment of drug-resistant epilepsy in children - and adults. The intestinal microbiome has a climax character, and the main factor changing its composition and functions is the diet. Both increased biodiversity and the production of short-chain fatty acids (SCFAs) are important indicators of gut barrier function. SCFAs are synthesized by microorganisms through the fermentation of dietary fibre provided with the diet. They are an important element in signal transduction from the digestive system to other tissues. To date, there is little research to determine how the use of KD alters the SCFAs profile of the human stool. Objective. To assess the SCFAs profile in the stool of healthy and active KD users. Material and methods. Study group: amateur athletes following KD. Control group: amateur athletes following a regular diet (carbohydrates min. 50%); gender: men and women aged 18-60. Material: stool sample (1x10 g). SCFAs content was determined in stool samples using gas chromtography method. Participants completed a Food Frequency Questionnaire (FFQ) and a 72-hour food diary. Results. There research has shown differences in the amount of SCFAs, as far as the results obtained from the two groups are concerned. The discrepancies referred to the levels of acetic, butyric, iso-butyric, valeric, and isovaleric acids. Spearman's rank correlation analysis showed a strong relationship between the consumption of selected dietary components (vegetables, fruits, red meat, poultry, fish, nuts and seeds, sugar, sugar substitutes, fats) and the SCFAs content in the stool of the study group. Conclusions. High consumption of cruciferous and leaf vegetables, berries and nuts on a ketogenic diet may have a positive effect on the profile of short-chain fatty acids produced by the gut microbiome. Changing the diet towards a greater supply of plant products may prevent proteolytic fermentation and reduce the negative effects of microbiome changes caused by an oversupply of protein and fat in the ketogenic diet.
    Źródło:
    Roczniki Państwowego Zakładu Higieny; 2022, 73, 1; 51-63
    0035-7715
    Pojawia się w:
    Roczniki Państwowego Zakładu Higieny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Characterization of nitrated proteins from pepper (Capsicum annuum L.) fruits
    Autorzy:
    Alvarez de Morales, P.
    Chaki, M.
    Barroso, J.
    Corpas, F.
    Palma, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/80343.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    conference
    nitration
    post-translational modification
    reactive nitrogen species
    protein activity
    nitrooxidative stress
    pepper
    Capsicum annuum
    2-D electrophoresis
    immunoblotting
    nitrotyrosine
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Iron-superoxide dismutase from pepper: biochemical characterization, cell localization and tissue distribution
    Autorzy:
    Rodriguez-Ruiz, M.
    Alvarez de Morales, P.
    del Rio, L.
    Corpas, F.
    Palma, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/80920.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    conference
    iron-superoxide dismutase
    pepper
    Capsicum annuum
    biochemical characteristics
    tissue distribution
    stress condition
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Wall Thickness on the Microstructure of Ductile Iron Castings Manufactured by the Inmold Process Using a Reaction Chamber
    Autorzy:
    Kamińska, J.
    Angrecki, M.
    Stefański, Z.
    Palma, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/382183.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    ductile iron
    inmold process
    reaction chamber
    vertical mould parting plane
    cast iron microstructure
    żeliwo sferoidalne
    technologia inmold
    komora reakcyjna
    mikrostruktura żeliwa
    Opis:
    In the family of iron-based alloys, ductile iron enjoys the highest rate of development, finding application in various industries. Ductile iron or the cast iron with spheroidal graphite can be manufactured by various methods. One of them is the Inmold spheroidization process characterized by different technological solutions, developed mainly to increase the process efficiency. So far, however, none of the solutions has been based on the use of a reactor made outside the casting mould cavity. The method of spheroidization inside the casting mould using a reaction chamber developed at the Foundry Research Institute is an innovative way of cast iron treatment. The innovative character of this method consists in the use of properly designed and manufactured reactor placed in the casting mould cavity. Owing to this solution, the Inmold process can be carried out in moulds with both horizontal and vertical parting plane. The study presents the results of examinations of the microstructure of graphite precipitates and metal matrix of castings after spheroidization carried out by the Inmold process using a reactor and mould with vertical parting plane. Special pattern assembly was made for the tests to reproduce plates with wall thicknesses of 3; 5; 7; 10; 20 and 30 mm. The content of residual magnesium was determined for all tested castings, while for castings of plates with a wall thickness equal to or larger than 10 mm, testing of mechanical properties was additionally performed.
    Źródło:
    Archives of Foundry Engineering; 2018, 18, 4; 50-54
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Charakterystyka wodnych i alkoholowych powłok ochronnych nowej generacji i ich wpływ na jakość warstwy wierzchniej odlewu
    Characteristics of new generation water and alcohol coatings and their impact on the quality of the casting surface layer
    Autorzy:
    Kamińska, J.
    Angrecki, M.
    Palma, A.
    Puzio, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/391560.pdf
    Data publikacji:
    2018
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Odlewnictwa
    Tematy:
    powłoki ochronne
    masy formierskie
    stopy żelaza
    jakość powierzchni odlewów
    protective coatings
    moulding sands
    iron alloys
    surface quality of castings
    Opis:
    Rosnące wymagania odbiorców odlewów dotyczące dokładności wymiarowej oraz chropowatości powierzchni odlewów wymuszają na producentach (odlewniach) stosowanie powłok ochronnych na formy i rdzenie. Celem nanoszenia powłok jest: zabezpieczenie przed przypalaniem się (przywarciem) tworzywa formy do odlewu, zmniejszenie chropowatości powierzchni odlewów, ułatwienie usunięcia odlewu z wnęki formy. W artykule przedstawiono wyniki badań nowej generacji powłok wieloskładnikowych, przeprowadzone zgodnie z polską normą PN-H-11011:1997. Zbadano gęstość badanych powłok, zawartość substancji suchej, wskaźnik sedymentacji oraz ilość wydzielanych przez powłoki gazów. Przeprowadzono również wytopy mające na celu określenie wpływu zastosowanych powłok na jakość powierzchni zewnętrznej odlewów staliwnych.
    The increasing requirements of casting users regarding the dimensional accuracy and surface roughness of castings force the manufacturers, i.e. foundries, to use protective coatings on moulds and cores. Coatings are applied in order to protect the casting against the burn-on defects (mould material adhering to the casting surface), to reduce the surface roughness of castings, and to facilitate casting removal from the mould cavity. This paper presents the results of studies of multi-component coatings of the new generation made in accordance with the Polish Standard PN-H-11011:1997. Tests included the density of coatings, the content of dry matter, the sedimentation index and the amount of gas emitted by the coating. Melts were made to determine the impact of coating on the quality of the external surface of steel castings.
    Źródło:
    Prace Instytutu Odlewnictwa; 2018, 58, 4; 227-234
    1899-2439
    Pojawia się w:
    Prace Instytutu Odlewnictwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Mechanical Reclamation Cycle on Strength Parameters of Loose Self-Hardening Sands Based on Furfuryl Resin
    Autorzy:
    Kamińska, J.
    Basińska, E.
    Angrecki, M.
    Palma, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/353768.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    loose self-hardening sand
    furfuryl resin
    mechanical reclamation
    Opis:
    The results of mechanical reclamation of waste moulding sands with furfuryl resin and activators of new generation are presented. The aim of the research described in this study was to determine what effect the addition of reclaim obtained in the process of dry mechanical reclamation could have on the properties of furan sands. The sand supplied by one of the domestic foundries was after the initial reclamation subjected to a two-step proper reclamation process. The following tests were carried out on the obtained reclaim: pH, S and N content, loss on ignition and comprehensive sieve analysis. The obtained reclaim was next used as a component of moulding sands with furfuryl resin, wherein it formed 50% and 80% of the base moulding material, respectively. The strength properties of the ready sand mixtures (bending strength Rgu and tensile strength Rm u ) were determined after the hardening time of 0.5, 1, 2, 4 and 24 hours.
    Źródło:
    Archives of Metallurgy and Materials; 2018, 63, 4; 1843-1846
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Effect of Additive "B" on the Properties of CO2-Hardened Foundry Sands with Hydrated Sodium Silicate
    Autorzy:
    Kamińska, J.
    Angrecki, M.
    Palma, A.
    Jakubski, J.
    Wildhirt, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/352315.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    foundry industry
    moulding sand
    hydrated sodium silicate
    additive “B”
    Opis:
    The results of own studies concerning the application of a new additive to the CO2-hardened sodium water glass foundry sands are presented. The new additive, which is a composition of aqueous solutions of modified polyalcohols, has been designated by the symbol “B” and is used as an agent improving the sand knocking out properties. The scope of studies included various mechanical and technological properties of foundry sand mixtures, such as permeability, friability, life cycle of cores and knocking out properties. Two types of water glass with different values of the silica modulus and density, designated as R145 and R150, were tested. Moulding sands used in the tests were made with the additive “B”. For comparison, a reference sand mixture with water glass but without the additive “B” was also prepared.
    Źródło:
    Archives of Metallurgy and Materials; 2017, 62, 3; 1637-1641
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Research object as mechanism for ensuring research experiment reproducibility within virtual research environment
    Autorzy:
    Krystek, M.
    Mazurek, C.
    Palma, R.
    Pukacki, J.
    Gomez-Perez, J. M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1940554.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Gdańska
    Tematy:
    research object
    virtual research environment
    Earth Science
    semantic web
    preservation
    evolution
    obiekt badawczy
    wirtualne środowisko badawcze
    nauki o ziemi
    sieć semantyczna
    ochrona
    ewolucja
    Opis:
    A Research Object (RO) is defined as a semantically rich aggregation of resources that bundles together essential information relating to experiments and investigations. This information is not limited merely to the data used and the methods employed to produce and analyze such data, but it may also include the people involved in the investigation as well as other important metadata that describe the characteristics, inter-dependencies, context and dynamics of the aggregated resources. As such, a research object can encapsulate scientific knowledge and provide a mechanism for sharing and discovering assets of reusable research and scientific knowledge within and across relevant communities, and in a way that supports reliability and reproducibility of investigation results. While there are no pre-defined constraints related to the type of resources a research object can contain, the following usually apply in the context of scientific research: data used and results produced; methods employed to produce and analyze data; scientific workflows implementing such methods; provenance and settings; people involved in the investigation; annotations about these resources, which are essential to the understanding and interpretation of the scientific outcomes captured by a research object. The example research object contains a workflow, input data and results, along with a paper that presents the results and links to the investigators responsible. Annotations on each of the resources (and on the research object itself) provide additional information and characterize, e.g. the provenance of the results. Therefore, exploitation of the RO model should be considered as a way to provide additional reliability and reproducibility of the research. The concept of the RO was introduced to the environment created in the EVER-EST project in the form of Virtual Research Environment (VRE). a group of Earth Scientists, who are observing, analyzing and modeling processes that take place on land and see, was examined against their needs and expectations about the possible improvements in their scientific work. The results show that scientist expectations are focused on knowledge sharing and reuse, and new forms of scholarly communications beyond pdf articles as supporting tools of knowledge cross-fertilization between their members. The Research Object concept seems a natural answer for these needs. However, the model, in order to be sufficient and usable, must become a part of the working environment and needs to be integrated with the actual tools. Therefore, great efforts have been undertaken to create a generic, technical solution – VRE , which implements the expected functionalities. In this article we present a concept of the VRE as a tool that takes advantage of the Research Object model in order to integrate and simplify the information exchange, as well as persist, share and discover assets of the reusable research. Moreover, we are presenting example scenarios of the VRE usage in the four different Earth Science domains.
    Źródło:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2017, 21, 4; 379-389
    1428-6394
    Pojawia się w:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparing the Effectiveness of Cast Iron Spheroidization by the Traditional Method and Using a Reaction Chamber (Reactor) Placed in Foundry Mould
    Autorzy:
    Stefański, Z.
    Kamińska, J.
    Pamuła, E.
    Angrecki, M.
    Palma, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/382171.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    ductile iron
    spheroidization methods
    magnesium alloy
    evaluation of effectiveness
    żeliwo sferoidalne
    metody sferoidyzacji
    stop magnezu
    skuteczność sferoidyzacji
    ocena skuteczności
    Opis:
    The effectiveness of cast iron spheroidization with FeSiMg master alloy by the traditional method and using a reaction chamber placed in the cavity of foundry mould was compared. The method of cast iron treatment in mould cavity using a reaction chamber is an innovative technology developed by the Foundry Research Institute in Krakow. The effectiveness of the spheroidization process carried out by both methods was checked on a series of test castings. The article also presents the results of metallographic examinations and mechanical testing, including the discussion of magnesium yield and its assimilation rate.
    Źródło:
    Archives of Foundry Engineering; 2018, 18, 1; 191-195
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Crustacean microcoprolites from the Upper Jurassic - Lower Cretaceous of the Meuquen Basin, Argentina: Systematics and biostratigraphic implications
    Autorzy:
    Kietzmann, D A
    Blau, J.
    Fernandez, D.E.
    Palma, R.M.
    Powiązania:
    https://bibliotekanauki.pl/articles/21225.pdf
    Data publikacji:
    2010
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Opis:
    As a result of a microfacial study in the outer and middle ramp deposits of the Vaca Muerta Formation (lower Tithonian–upper Valanginian), four ichnotaxa of crustacean microcoprolites are described: Palaxius azulensis Kietzmann isp. nov., Palaxius caracuraensis Kietzmann isp. nov., Helicerina? isp. A. aff. Helicerina siciliana and Helicerina isp. B. They represent one of the first records of crustacean microcoprolites for the Neuquén Basin and Argentina. Helicerina is reported for the first time from the Upper Jurassic and Lower Cretaceous of South America. It is inferred that Palaxius ichnospecies were produced by callianassids, while Helicerina ichnospecies could be produced by decapods of Mecochiridae, Erymidae, and/or Nephropidae affinity. Two assemblages of crustacean microcoprolites are recognised, a middle Tithonian to lower Berriasian Palaxius−dominated assemblage and an early to late Valanginian Helicerina−dominated assemblage.
    Źródło:
    Acta Palaeontologica Polonica; 2010, 55, 2; 277-284
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An Innovative Method for the Dehydration Hardening of Modified Inorganic Binders
    Autorzy:
    Izdebska-Szanda, I.
    Kamińska, J.
    Angrecki, M.
    Palma, A.
    Madej, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/355665.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    moulding sands
    inorganic binder
    water glass
    hardening with gaseous agents
    dehydration
    Opis:
    The results of research on the possibility of using a gaseous medium (hot air) as a hardening agent for inorganic binders were discussed, and tests on the reclamation of waste moulding sands were carried out. The research programme also included the use of a modernized test stand for hardening of foundry sands with gaseous agents and a pilot plant for the sand reclamation. Cores made on the test stand were examined for the basic technological properties and were also used in moulds for the trial knocking out of castings. Two types of binders were tested, i.e. a modified water glass designated as Binder A and, for comparison, a reference material which was hydrated sodium silicate R145. The hardener for the sand mixtures was hot air (the dehydration of water glass). Trials of the sand reclamation were carried out in a laboratory pilot plant, installed and operating at the Foundry Research Institute. The obtained reclaim was added in different amounts to the sand mixtures subjected to technological tests. The next step included the manufacture of test moulds, pouring them with aluminium alloy, and knocking out of castings to test the collapsibility of moulds and cores.
    Źródło:
    Archives of Metallurgy and Materials; 2016, 61, 4; 2097-2102
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Effect of Additive "B" on the Properties of Foundry Sands with Hydrated Sodium Silicate Made by Floster Technology
    Autorzy:
    Izdebska-Szanda, I.
    Kamińska, J.
    Angrecki, M.
    Palma, A.
    Stefański, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/379919.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    moulding sand
    water glass
    floster S technology
    additive
    masa formierska
    szkło wodne
    technologia floster S
    dodatki do mas formierskich
    Opis:
    The aim of the study was to determine the applicability of a new product added to water glass-containing foundry sands hardened with ethylene glycol diacetate. The new additive designated by the symbol "B" is a composition of aqueous solutions of modified polyalcohols, improving the sand knocking out properties. The scope of studies included testing various mechanical and technological properties of foundry sand mixtures, such as permeability, friability, life cycle of cores and knocking out properties. In the technological studies, two types of water glass with different values of the silica modulus and density, designated as R145 and R150, were used. Moulding sands were prepared with the additive "B". For comparison, reference sands with water glass but without the additive "B" were also made. In Part I of the article, the results of studies of the effect of additive "B" on the properties of foundry sands with water glass hardened by CO2 blowing were discussed.
    Źródło:
    Archives of Foundry Engineering; 2017, 17, 2; 31-34
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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