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 "life time" wg kryterium: Temat

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-5 z 5
    Tytuł:
    Low voltage winding insulation systems under the influence of high du/dt slew rate inverter voltage
    Autorzy:
    Pauli, Florian
    Ruf, Andreas
    Hameyer, Kay
    Powiązania:
    https://bibliotekanauki.pl/articles/140993.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    life time
    partial discharge
    SiC semiconductors
    winding insulation system
    Opis:
    Variable speed and low voltage electrical drives are commonly operated by frequency converters. According to recent developments, there is a trend in the area of semi-conductors, that switching frequency and voltage slew rate will increase significantly. The aim of these semiconductors is to reduce the switching losses and to increase the switching frequency, which enables to reduce the size of passive components in the powerelectric circuit. This results in less material effort and lower cost, for the power electronic component. However, electric motors operated by high slew rate inverters show problems in the winding insulation, which have to be analyzed. Such problems are well known for high voltage machines. Due to the increasing slew rate, this problematic occurs in low voltage machines nowadays as well. Here, the influence of fast switching semiconductors on the winding insulation system is studied, using accelerated ageing tests with fast switching high-voltage generators.
    Źródło:
    Archives of Electrical Engineering; 2020, 69, 1; 187-202
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Enhancement of Life Time of the Dimensionally Stable Anode for Copper Electroplating Applications
    Autorzy:
    Son, S. H.
    Park, S. C.
    Lee, M. S.
    Powiązania:
    https://bibliotekanauki.pl/articles/356684.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    dimensionally stable anode
    surface treatment
    life time
    copper
    electrodeposition
    Opis:
    In order to enhance the long-term stability of DSA for copper electroplating process, in the present study, noble metal oxides with excellent electrochemical properties was used and optimum condition was determined the ratio of noble metal oxides, surface pre-treatment of titanium substrate and heat treatment. The effect of the surface pretreatment of titanium substrate and ratio of noble metal oxides were estimated by accelerated test at the highly current density conditions. The lifetime of DSA increase six-fold higher as the oxide thickness of Ta 7 : Ir 3 composition ratio. Under the optimal condition, surface pretreatment led to dramatic increase in the lifetime of DSA.
    Źródło:
    Archives of Metallurgy and Materials; 2017, 62, 2B; 1019-1022
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A dual perspective of value in a bundle of product and service
    Autorzy:
    Safarpour, N.
    Sillanpää, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/407325.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    customer value
    value proposition
    customer life-time value
    service
    smart
    connected
    Opis:
    Focusing on value creation in marketing has always been the key to success for companies. As a result, the definition, analysis and communication of value has gained importance. Companies are making an attempt to make a value proposition that is not only lucrative for the customer, but also has great returns for the company itself. Although this might sound simple on paper, since it is the basis for business logic, it is much more complicated in real life situations. With the service elements in the offering and the emergence of technologies such as smart and connected phenomenon, the business models become more innovative and more complexity is added to the analysis of value. The objective of this paper is to introduce a method for the dual perspective of value in a bundle of product and service in a smart and connected context. This method draws from the customer value and customer lifetime value concepts to offer an all-inclusive study on value. This assists companies in crafting an appealing value proposition in a cost-saving offering for a client that offers value to the company over its lifetime. This study specifically deals with the state of the arts smart and connected phenomenon and provides a view on how value works in that context. The framework created through this study serves to help the company choose a client that is of most value to the firm over the time of their cooperation. It then leads the company towards a better fabrication of the offering that is not only an attractive proposition to the client but also for the company. It gives a close insight onto where the benefit comes from and how a smart and connected bundle of products, services and relationships must be put together for maximum results in the modern age.
    Źródło:
    Management and Production Engineering Review; 2017, 8, 4; 27-41
    2080-8208
    2082-1344
    Pojawia się w:
    Management and Production Engineering Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Markov Model of Cyber Attack Life Cycle Triggered by Software Vulnerability
    Autorzy:
    Hoffmann, Romuald
    Powiązania:
    https://bibliotekanauki.pl/articles/1844613.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Markov model
    cyber-attack
    vulnerability
    life cycle
    homogenous Markov process
    continuous time Markov chain
    Opis:
    Software vulnerability life cycles illustrate changes in detection processes of software vulnerabilities during using computer systems. Unfortunately, the detection can be made by cyber-adversaries and a discovered software vulnerability may be consequently exploited for their own purpose. The vulnerability may be exploited by cyber-criminals at any time while it is not patched. Cyber-attacks on organizations by exploring vulnerabilities are usually conducted through the processes divided into many stages. These cyber-attack processes in literature are called cyber-attack live cycles or cyber kill chains. The both type of cycles have their research reflection in literature but so far, they have been separately considered and modeled. This work addresses this deficiency by proposing a Markov model which combine a cyber-attack life cycle with an idea of software vulnerability life cycles. For modeling is applied homogeneous continuous time Markov chain theory.
    Źródło:
    International Journal of Electronics and Telecommunications; 2021, 67, 1; 35-41
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rytmy życia: codzienność i święto w gazetach rękopiśmiennych czasów saskich
    Life rhythms: Everyday life and festivals in the 18th century handwritten newsheets
    Autorzy:
    Bożena, Popiołek
    Powiązania:
    https://bibliotekanauki.pl/articles/421787.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    codzienność
    czasy saskie
    gazety ulotne
    karnawał
    mentalność
    prasa rękopiśmienna
    święto
    Early Polish press
    newssheets (avvisi)
    Polish mentality in the 18th century
    everyday life
    festival and carnival time
    Opis:
    Codzienność i święto to dwie odrębne kategorie rzeczywistości, które różnią się przede wszystkim odmiennym rodzajem ludzkich doświadczeń i w taki sposób były postrzegane przez redaktorów rękopiśmiennych awizów. Rękopiśmienne gazetki są więc przede wszystkim zapisem rzeczy nadzwyczajnych – spektakularnych widowisk, odświętnych ceremonii, rzadkich lub wstrząsających wydarzeń politycznych, które wpisywały się w społeczny odbiór. „Inność”, „odmienność” i „niecodzienność”, a więc to co zmienia i zaburza porządek codzienności, stanowiły ich podstawowy kanon informacyjny
    Everyday life and festival time, when the humdrum routine is suspended, are two categories of reality which correlate with different types of response. The value of the latter category was by no means missed by the 18th-century Polish editors when they compiled the contents of their avvisi. These handwritten newssheets bear witness to both their editors’ and readers’ preference for all things extraordinary, such as spectacles, pageants, ceremonies, uncommon or shocking political events. Or, in other words, ‘otherness’, ‘strangeness’ and anything that changed or challenged the familiar patterns of everyday life defi ned their information canon
    Źródło:
    Rocznik Historii Prasy Polskiej; 2013, 16, 2(32); 5-18
    1509-1074
    Pojawia się w:
    Rocznik Historii Prasy Polskiej
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

      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