Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "modified design" wg kryterium: Temat

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-4 z 4
    Tytuł:
    Modification and analyses of structural properties of a goods wagon bogie frame
    Autorzy:
    Dižo, Ján
    Blatnický, Miroslav
    Harušinec, Jozef
    Falendysh, Anatoliy
    Powiązania:
    https://bibliotekanauki.pl/articles/329358.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
    Tematy:
    goods wagon bogie
    modified design
    bogie frame
    modal analysis
    strength analysis
    wagon towarowy
    rama wózka
    projekt
    analiza modalna
    analiza wytrzymałościowa
    Opis:
    The contribution presents a modification of a goods wagon bogie frame. Every newly designed or significantly modified any support part of a railway bogie must meet strict criteria related to its strength and fatigue life. It presents key changes of the structure of an original goods wagon bogie frame, conditions and results strength analyses for unfavourable load cases, for which values of load forces come out from valid standards. The introductory part presents the original goods wagon bogie and the idea of its modification. In the next part analyses of structural properties (modal and stress analyses) are introduced. Simulation computations were carried out using Finite Element Method. Further, main load cases which all bogies must meet before commissioning and conditions for bogies approval are described. In simulation calculations a goods bogie frame was loaded in compliance with standards by four unfavourable load cases.
    Źródło:
    Diagnostyka; 2019, 20, 1; 41-48
    1641-6414
    2449-5220
    Pojawia się w:
    Diagnostyka
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Combinations of actions for accidental design situation: a review, analysis and propositions
    Autorzy:
    Tur, Viktar
    Tur, Andrei
    Lizahub, Aliaksandr
    Derechennik, Stanislav
    Powiązania:
    https://bibliotekanauki.pl/articles/111089.pdf
    Data publikacji:
    2020
    Wydawca:
    Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.
    Tematy:
    combinations of actions
    accidental design situation
    robustness
    key element
    modified structural systems
    Opis:
    The paper discusses two main design strategies when checking for reliability and considers accidental action combinations according the various codes. If accidental actions can be identified, one of the possible design strategies is checking the “key element”. This strategy minimizes the possibility of local failure and subsequent progressive collapse. The combination of actions for accidental design situation for checking of the “key-element” resistance was proposed. In addition, the values of the combination factors for variable loads and partial factors for permanent loads in accordance with required reliability class RC for structural element and values of accidental loads was proposed. The second strategy is checking modified structural systems in accidental design situation from unidentified accidental actions. For this case, a comparison of several probabilistic models was performed, as well as a probabilistic assessment of the accidental action combinations according the various codes.
    Źródło:
    Inżynieria Bezpieczeństwa Obiektów Antropogenicznych; 2020, 3; 1-25
    2450-1859
    2450-8721
    Pojawia się w:
    Inżynieria Bezpieczeństwa Obiektów Antropogenicznych
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Describing of generalized drying kinetics with application of experiment design method
    Autorzy:
    Efremov, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/297823.pdf
    Data publikacji:
    2013
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie
    Tematy:
    experiment design method
    drying kinetics
    modified two-period model
    sludge
    cotton fabric
    Opis:
    The purpose of this article is an application of experiment design method for describing of generalized drying kinetics. Generalized kinetic equation for the first drying period as the linear dependence of the material moisture content vs. drying time and temperature is obtained. For determination of generalized kinetic equation the limited number of experimental data (only two moisture contents of a material for two temperatures of drying agent) is needed. The comparison of calculations of generalized kinetic equation with experimental data for convection drying of sludge and for convectional drying of cotton fabric in the first drying period are fulfilled. The mathematical modification of the two-period model of drying kinetics over the entire drying process is obtained. This modified model permits to avoid of the determination of a characteristic drying time. The comparison of drying kinetic calculations with experimental data for convection drying of sludge in the first and second drying periods for four temperatures using of experiment design method was fulfilled. As follows from calculations, the experimental data of sludge correspond well to the lines obtained through the factorial design which means that this method can successfully be used to determine constant drying rates, total kinetics and the influence of temperature in drying process.
    Źródło:
    Technical Sciences / University of Warmia and Mazury in Olsztyn; 2013, 16(4); 309-322
    1505-4675
    2083-4527
    Pojawia się w:
    Technical Sciences / University of Warmia and Mazury in Olsztyn
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Novel Calix[4]arene network resin for Cr(VI) ions Remediation : A Response Surface Approach
    Autorzy:
    Siyal, A. N.
    Memon, S. Q.
    Powiązania:
    https://bibliotekanauki.pl/articles/779157.pdf
    Data publikacji:
    2012
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    modified amberlite XAD-2
    calixarene
    cavities
    network
    optimization
    remediation
    removal
    chromium
    response surface methodology
    factorial design
    isotherms
    Opis:
    Novel Calix[4]arene Netwok (NCN) resin has been synthesized using Amberlite XAD-2 as the starting material. Hydroxyl groups have been introduced onto the para position of alkylated phenyl ring of Amberlite XAD-2 followed by the condensation to NCN by reacting it with formaldehyde. The NCN resin has been used for the remediation of Cr(VI) contaminated water using factorial design approach. A face-centered Draper-Lin composite design predicted ~100% removal effi ciency at optimum variables (the initial concentration of Cr(VI) ion 10 mg/l sorbent dose 200 mg, agitation time 136 min and pH 2). The accuracy and the fi tting of the model were evaluated by ANOVA and R2 (0.9992) values. The 99.5% removal effi ciency has been achieved experimentally at the optimum values of the variables. The Langmuir and D-R isotherm models were applicable to the sorption data with the value of RL and the sorption free energy 0.0057-0.1 and 7.93 kJ/mol respectively, suggesting favorable and physical/ion-exchange nature of the sorption. The calculated sorption capacity was 176.1š2.4 mg/g. The recycling studies of NCN resin showed that the multiple use of resin is feasible. Effect of concomitants has also been studies and proposed method was applied successfully for removal (98.7%) of Cr (VI) from electroplating wastewater.
    Źródło:
    Polish Journal of Chemical Technology; 2012, 14, 3; 21-28
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies