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    Wyświetlanie 1-5 z 5
    Tytuł:
    Comparison of App Inventor 2 and Java in creating personal applications for Android on example of a Notepad
    Autorzy:
    Kowalczyk, R.
    Turczyński, Ł.
    Żyła, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/957982.pdf
    Data publikacji:
    2016
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    Java
    App Inventor
    Android
    efficiency comparison
    application usability comparison
    Opis:
    Nowadays, there is a common tendency to seek simpler and faster solutions that could be used in a process of software development. At the same time two other trends can be observed - rapid increase of mobile applications popularity and introducing IT concepts to non-IT specialists. This is why App Inventor 2 is one of the tools that software development community is interested in. The goal of this paper is to verify the possibility of using App Inventor as a tool for creating personal applications and compare it with possibilities given by Java, which is a native environment for Android platform. Comparison was based on application for managing personal text notes which was created in both solutions. The application had the same layout as well as analogical code, and it was the subject of performance tests followed by a survey. Performance test revealed that both implementations provided efficiency which is good enough for everyday use and small size personal applications. Survey participants preferred application built in Java due to its better responsiveness and visual appearance. Concluding, current shape of App Inventor, makes it useless for professionals, but useful for non-IT specialists for creating personal applications.
    Źródło:
    Advances in Science and Technology. Research Journal; 2016, 10, 31; 247-254
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Methylphenanthrenes in the Southern Baltic as markers of petrogenic pollution
    Autorzy:
    Lubecki, L.
    Szymczak-Zyla, M.
    Kowalewska, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/48189.pdf
    Data publikacji:
    2006
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    monomethylphenanthrene
    methylphenanthrene
    Baltic Sea
    polynuclear aromatic hydrocarbon
    sediment
    dimethylphenanthrene
    marine sediment
    Opis:
    Mono- and dimethylphenanthrenes were determined in recent (0–10 cm) sediments collected at about 30 stations in the southern Baltic Sea from 1995 to 2001. The stations were located in the Szczecin Lagoon, the Pomeranian Bay, the Bornholm Deep, the open sea (without the Bornholm and Gdańsk Deeps), the Gdańsk Deep, and the Gulf of Gdańsk including the Wisła (Vistula) Lagoon. The results were related to the unsubstituted PAH content. The annual load of methylphenanthrenes in relation to unsubstituted PAHs in the Rivers Odra and Wisła was estimated. Methylphenanthrenes are more abundant in the Odra estuary than in the Wisła estuary, and more abundant in the coastal sediments than in the open sea sediments. The results indicate that methylphenanthrenes related to the lower molecular, unsubstituted PAHs are a good measure of petrogenic pollution in the southern Baltic.
    Źródło:
    Oceanologia; 2006, 48, 1
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Factors affecting the occurrence of algae on the Sopot beach (Baltic Sea)
    Autorzy:
    Filipkowska, A.
    Lubecki, L.
    Szymczak-Zyla, M.
    Lotocka, M.
    Kowalewska, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/47508.pdf
    Data publikacji:
    2009
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    phytoplankton
    alga
    chloropigment a
    beach management
    eutrophication
    Baltic Sea
    macroalga
    Opis:
    The occurrence of algae on the Sopot beach was investigated from 2004 to 2006 from the beach management point of view. Various methods were applied in an attempt to understand the mechanisms underlying the accumulation of algae on the shoreline. They included daily observations of the occurrence of macrophyta on the beach, absorption measurements of acetone extracts of the particulate matter in the seawater, the collection of macrophyta and phytoplankton samples for biomass and taxonomic identification, and determination of the degree of decomposition on the basis of chloropigment analyses. The results were related to the environmental conditions: meteorological data and the physicochemical parameters of the seawater. The biomass recorded on the beach consisted mainly of macroalgae and a small proportion of sea grass (Zostera marina). The phytoplankton biomass consisted mainly of dinoflagellates, diatoms, cyanobacteria, euglenoids and cryptophytes. The conclusions to be drawn from this work are that the occurrence of huge amounts of macrophyta amassing on the Sopot beach depends on the combined effect of high solar radiation in spring and summer, high-strength (velocity × frequency) south-westerly winds in May-September, followed by northerly winds, bringing the macrophyta from Puck Bay on to the Sopot beach. At the same time, their abundance along the beach varies according to the shape and height of the shore, the wind strength and the local wind-driven seawater currents. According to estimates, from 2.2–4.4 × 102 tons (dry weight) of macrophyta can be moved on to the Sopot beach in one hour. In October, strong southeasterly winds can also transport huge amounts of decomposing biomass onshore. The phytoplankton content in the total biomass is negligible, even though at low concentrations its biological activity may be considerable. The intensive phytoplankton blooms observed on the Sopot beach in summer are not always caused by cyanobacteria.
    Źródło:
    Oceanologia; 2009, 51, 2; 233-262
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of the selected antioxidant compounds in ice cream supplemented with Spirulina (Arthrospira platensis) extract
    Autorzy:
    Szmejda, K.
    Duliński, R.
    Byczyński, Ł.
    Karbowski, A.
    Florczak, T.
    Żyła, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/410469.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Łódzka. Wydawnictwo Politechniki Łódzkiej
    Tematy:
    ice cream
    spirulina
    antioxidants
    lody
    przeciwutleniacze
    Opis:
    The research is aimed at evidencing that ice-cream formulations incorporating algae can have health-benefiting effects on human body. The main task of the project is to design ice-cream product line that distinguish itself from regular ice-cream by increased anti-oxidant activity resulted from inclusion of the algae extract. The currently known research evidences that ice-cream can be effective as carriers of health-promoting probiotic bacteria, which in turn encourages also application of other microorganisms in particular algae of specific strains (e.g. Spirulina platensis) as a supplement to ice-cream. In submitted research, the level of polyphenols and antioxidant activity expressed as degree of inhibiting generation of cationo-free radical from DPPH•+ solution were analyzed. Preliminary results based on antioxidative activity tests measured with potential to quench free radicals have shown that ice-cream formulations enriched with algae extract exhibit significantly higher potential achieving inhibition level of 39.7% in the mint ice cream samples as compared to 32.8% inhibition for the control sample without algae. Furthermore, each of the examined samples (dairy, pistachio, mint) ice creams versions supplemented with Spirulina were characterized by enhanced antioxidant activities expressed as potential to quench free radicals and the carotenoids content.
    Źródło:
    Biotechnology and Food Science; 2018, 82, 1; 41-48
    2084-0136
    2299-6818
    Pojawia się w:
    Biotechnology and Food Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Utilisation of macroalgae from the Sopot beach (Baltic Sea)
    Autorzy:
    Filipkowska, A.
    Lubecki, L.
    Szymczak-Zyla, M.
    Kowalewska, G.
    Zbikowski, R.
    Szefer, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/47466.pdf
    Data publikacji:
    2008
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    biofertilizer
    utilization
    Baltic Sea
    macroalga
    contamination
    Sopot beach
    monitoring
    Opis:
    The aim of this work was to explore the possibilities of utilising the macroalgae accumulating on the Sopot beach, a part of the Gulf of Gdańsk (Baltic Sea). During this work (2004–2006) a range of activities were undertaken: monitoring the occurrence of macroalgae, collection of plant material, taxonomic identification, laboratory analyses of contamination (metals – Cd, Pb, Ni, Zn, Cu, Cr, Hg; radionuclides – 137Cs, 40K; organic contaminants – polychlorinated biphenyls, polycyclic aromatic hydrocarbons), the stage of algal degradation and studying possible uses of the plant material collected on the beach. The most suitable way of utilising the plant material seems to be as a biofertiliser. Laboratory growth tests were carried out to assess this possible use; they were successful.
    Źródło:
    Oceanologia; 2008, 50, 2; 255-273
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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