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    Wyświetlanie 1-9 z 9
    Tytuł:
    Regarding of antifire ballistic system
    Autorzy:
    Barbu, C.
    Vasile, T.
    Coman, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/235927.pdf
    Data publikacji:
    2005
    Wydawca:
    Wojskowy Instytut Techniczny Uzbrojenia
    Tematy:
    urządzenia przeciwpożarowe
    pożarnictwo
    equipment fire
    Opis:
    In this paper it is presented the main aspects concerning of utility, designing and realization of antifire ballistic system. This system is designated for extinguishing of fire in closed areas with difficult accessible positions, acting at distances of 10 to 450 m and different elevations. The system is a recoil ballistic system and can be used individually or embarked on auto vehicles and helicopters. In paper is presented ballistic designing of such as system, too. The system was realized and in present is during of testing.
    Źródło:
    Problemy Techniki Uzbrojenia; 2005, R. 34, z. 94; 13-20
    1230-3801
    Pojawia się w:
    Problemy Techniki Uzbrojenia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A testing method of propulsion systems on simile micro models
    Autorzy:
    Coman, A.
    Vasile, T.
    Barbu, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/235921.pdf
    Data publikacji:
    2005
    Wydawca:
    Wojskowy Instytut Techniczny Uzbrojenia
    Tematy:
    silniki rakietowe
    urządzenia napędowe
    rocket engines
    Opis:
    In this paper is presented a testing method of propulsion systems on simile micro models. In order to calculate and design a micro engine simile with a real rocket engine, physical and geometrical relations where deduced. On the base of experimental data measured after testing of simile micro engine, can be establish the ballistic parameters of real rocket engine.
    Źródło:
    Problemy Techniki Uzbrojenia; 2005, R. 34, z. 94; 21-29
    1230-3801
    Pojawia się w:
    Problemy Techniki Uzbrojenia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Policy Role of the EU in Judicial Politics and the Limitations of Conditionality: the Case of Hungary
    Autorzy:
    Coman, Ramona
    Powiązania:
    https://bibliotekanauki.pl/articles/514383.pdf
    Data publikacji:
    2013
    Wydawca:
    Uniwersytet Wrocławski. Instytut Politologii
    Tematy:
    Hungary
    judicial reform
    judicial politics
    Europeanisation
    conditionality
    independence of the judiciary
    Opis:
    Recent developments in Hungarian constitutional and judicial politics have given impetus to question not only the outcomes of democratisation and Europeanisation, but also the efficacy of the European Union’s compliance mechanisms. In 2010, Hungary, one of the forerunners in building democracy made the headlines with Fidesz’s attempts at adopting a new Constitution and implementing cardinal laws along with controversial institutional, cultural, religious, moral and socio-economic policies. This article attempts to depict the transformative power of the European Union within a sensitive policy area which touches upon States’ pouvoris régaliens: the independence of the judiciary.
    Źródło:
    Polish Political Science Review. Polski Przegląd Politologiczny; 2013, 1; 65-83
    2353-3773
    Pojawia się w:
    Polish Political Science Review. Polski Przegląd Politologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Gloss to the Judgement of the Court of Justice of the European Union in Case C 673/16 Relu Adrian Coman, Robert Clabourn Hamilton v. Inspectoratul General pentru Imigrari (Romania)
    Autorzy:
    Krzysztofik, Edyta
    Powiązania:
    https://bibliotekanauki.pl/articles/940635.pdf
    Data publikacji:
    2019
    Wydawca:
    Wydawnictwo Adam Marszałek
    Źródło:
    Przegląd Prawa Konstytucyjnego; 2019, 5 (51); 429-439
    2082-1212
    Pojawia się w:
    Przegląd Prawa Konstytucyjnego
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Research on the Degradation Process of Railway Rails Due to Lifespan Exceeding
    Autorzy:
    Berbecaru, Andrei-Constantin
    Coman, George
    Ciucă, Sorin
    Gherghescu, Ioana-Arina
    Sohaciu, Mirela
    Grădinaru, Catalin
    Predescu, Cristian
    Powiązania:
    https://bibliotekanauki.pl/articles/2106587.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    degradation
    advanced wear
    fatigue fracture
    railway rails lifespan
    Opis:
    The paper presents the impact of exceeding the railway rails lifespan which usually causes a railway structural failure, thus an accident. The research highlights the rails’s high degradation, especially on the running area, consisting in 60-70% weight loss by advanced wear of the rail, followed by fatigue fracture caused by alternating cyclic stresses that initiates the crack and also by tensile stresses resulting in the crack growth. The chemical composition, structural and mechanical properties were analyzed in order to establish the causes that led to the railway rails rupture.
    Źródło:
    Archives of Metallurgy and Materials; 2022, 67, 2; 535--540
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Preliminary Structures Assessment of Some TRIP Steels
    Autorzy:
    Pantilimon, Mircea Cristian
    Berbecaru, Andrei-Constantin
    Coman, George
    Sohaciu, Mirela G.
    Dumitrescu, Ruxandra Elena
    Ciucă, Sorin
    Gherghescu, Ioana-Arina
    Predescu, Cristian
    Powiązania:
    https://bibliotekanauki.pl/articles/27313868.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    TRIP steel
    optical microscopy
    Vickers hardness
    retained austenite
    car body material
    Opis:
    Automotive industry is constantly interested in building cars made of light and high strength parts in order to reduce the emission levels, the fuel consumption and minimize the effects of a car crash. Some parts may be made of lighter materials, but the steel ones must compensate the strength needed for the car body. Research is made for finding new materials showing high strength combined with high ductility. Among them, transformation - induced - plasticity steels are of great interest, efforts being made to improve their characteristics. A new composition of such a steel is presented, its features being compared with those of three other steels of the same class and category. Optical microscopy at different magnifications is performed, together with Vickers hardness test. Structural particularities are found for each tested steel, justified by their own chemical compositions. The new steel reveals important characteristics: besides the mainly bainitic structure, it has both larger ferritic areas and amounts of retained austenite, making him proper for further study.
    Źródło:
    Archives of Metallurgy and Materials; 2023, 68, 2; 491--498
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Photocatalytic TiO2 Nanostructures Developed on the Grade 2 Ti Material
    Autorzy:
    Tarcea, Claudia I.
    Pantilimon, Cristian Mircea
    Coman, George
    Turcanu, Andreea A.
    Predescu, Andra Mihaela
    Matei, Ecaterina
    Berbecaru, Andrei-Constantin
    Predescu, Cristian
    Powiązania:
    https://bibliotekanauki.pl/articles/2134103.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Ti material
    nanostructures
    photocatalytic activity
    alkaline treatment
    advanced oxidation
    Opis:
    The research focused on TiO2 nanostructures environmental applications due to the special characteristics that displayed degradation of the organic compounds into environmentally friendly products through exposure to UV light. The protocol behind obtaining the nanostructures involved the use of a Ti material exposed to alkaline treatment and advanced oxidation using NaOH solution and acetone. These studied nanostructures were analyzed extensively by using methods such as scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD) for characterizing the elements, compounds and morphological properties of the material. These differences in morphology is attributed to different NaOH solution concentrations. The Ti sheets were immersed into NaOH and acetone mixed solutions for 72 hours. The best results were recorded by using 30% NaOH solution. After obtaining the 3D structures, which improve specific surface and contact area with the environment, the samples were tested under UV light in order to degrade methylene blue in order to determine their photocatalytic performance.
    Źródło:
    Archives of Metallurgy and Materials; 2022, 67, 3; 1079--1084
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-9 z 9

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