Temat: Siemens - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Parametric Design of Aircraft Wing with Curved Leading Edge
Autorzy:: Benaouali, A.
Kachel, S.
Powiązania:: https://bibliotekanauki.pl/articles/403302.pdf
Data publikacji:: 2018
Wydawca:: Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
Tematy:: mechanics
modelling of air-structures
Siemens NX systems
GRIP language for Siemens NX system
Opis:: In order to ease modelling procedures, eliminate repetitive effort and save time, modern CAD tools offer the ability to automate tasks via a programming language. Moreover, when the design is an iterative process, the automation permits updating the design variables to generate a new model at each iteration. Based on UG/OPEN GRIP functionalities, this paper aims at developing a parametric model of a curved leading edge aircraft wing. The model is built by executing a GRIP program in which wing parameter values can be assigned via a dialog box.
Źródło:: Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa; 2018, 9, 1 (31); 93-104
2081-5891
Pojawia się w:: Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Vectron as an Example of a Modern and Versatile Electric and Diesel Locomotive for Passenger and Freight Transport
Autorzy:: Graff, Marek
Powiązania:: https://bibliotekanauki.pl/articles/2203236.pdf
Data publikacji:: 2022
Wydawca:: Instytut Kolejnictwa
Tematy:: electric locomotives
multisystem voltage locomotives
Vectron
Siemens
Opis:: The Vectron locomotives are a Siemens proposal covering locomotives dedicated to both passenger and freight traffic, capable of operating under a wide range of supply voltages (multi-system, single-system, etc. versions are offered), on both normal and broad-gauge track. A diesel version was also designed for operation on non-electrified lines. The Vectron locomotives are a variant of the Eurosprinter ones, developed in the early 1990s and enriched by the operation experience acquired, both on the German or Austrian railway network and in other EU countries (acceptance to operate as part of the liberalization of the common market). To date, circa 1,500 Eurosprinter locomotives have been sold, primarily in Europe and also in the USA, where they are operated in moderate climate, and both the Mediterranean one and the cold Scandinavian winters.
Źródło:: Problemy Kolejnictwa; 2022, 196; 105--130
0552-2145
2544-9451
Pojawia się w:: Problemy Kolejnictwa
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Measurement and Comparison of Reliability Performance of Photovoltaic Power Optimizers for Energy Production
Autorzy:: Catelani, M.
Ciani, L.
Graditi, G.
Adinolfi, G.
Powiązania:: https://bibliotekanauki.pl/articles/220657.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: photovoltaic
DMPPT converter
reliability
MIL-HDBK-217F
Siemens SN29500
Opis:: Photovoltaic (PV) power optimizers are introduced in PV systems to improve their energetic productivity in presence of mismatching phenomena and not uniform operating conditions. Commercially available converters are characterized by different DC-DC topologies. A promising one is the boost topology with its different versions. It is characterized by its circuital simplicity, few devices and high efficiency values - necessary features for a Distributed Maximum Power Point Tracking (DMPPT) converter. PV power optimizer designs represent a challenging task since they operate in continuously changing operating conditions which strongly influence electronic component properties and thus the performance of complete converters. An aspect to carefully analyze in such applications is the thermal factor. In this paper, a necessity to have a suitable temperature monitoring system to avoid dangerous conditions is underlined In addition, another important requirement for a PV power optimizer is its reliability, since it can suggest a useful information on its diagnostic aspects, maintenance and investments. In fact, a reliable device requires less maintenance services, also improving the economic aspect. The evaluation of the electronic system reliability can be carried out using different reliability prediction models. In this paper, reliability indices, such as the Mean Time Between Failure (MTBF) or the Failure Rate of a Diode Rectification (DR) boost, are calculated using the evaluation of the Military Handbook 217F and Siemens SN29500 prediction models. With the reliability prediction results it has been possible to identify the most critical components of a DMPPT converter and a measurement setup has been developed in order to monitor the component stress level on the temperature, power, voltage, current, and energy in the DMPPT design phase avoiding the occurrence of a failure that might decrease the service life of the equipment.
Źródło:: Metrology and Measurement Systems; 2015, 22, 1; 139-152
0860-8229
Pojawia się w:: Metrology and Measurement Systems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Novel isoforms of transcript of the EDA gene confirm X-linked inheritance of anhidrotic ectodermal dysplasia
Autorzy:: Kobielak, K
Kobielak, A.
Trzeciak, W.H.
Powiązania:: https://bibliotekanauki.pl/articles/2043606.pdf
Data publikacji:: 1999
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: dysplasia
inheritance
anhidrotic ectodermal dysplasia
Christ-Siemens-Touraine syndrome
Tabby gene
EDA gene
gene transcript
Źródło:: Journal of Applied Genetics; 1999, 40, 4; 355-364
1234-1983
Pojawia się w:: Journal of Applied Genetics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Is the recently discovered EDA gene associated with anhidrotic ectodermal dysplasia?
Autorzy:: Kobielak, K
Kobielak, A
Trzeciak, W H
Powiązania:: https://bibliotekanauki.pl/articles/2046683.pdf
Data publikacji:: 1997
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: ectodermal-mesodermal interaction
X chromosome
submicroscopic deletion
hyperthermia
Christ-Siemens-Touraine syndrome
hybridization
ectodermal dysplasia
mutation
somatic cell
linkage analysis
embryonic life
transmembrane receptor
Opis:: The evidence from literature strongly suggests that Christ-Siemens-Touraine (CST) syndrome is associated with mutations of the newly discovered EDA gene. The gene is situated on the long arm of the X chromosome (Xq12.2-q13.1) and contains two exons separated by a 200 kbp intron. The 5’-untranslated region and most of the coding sequence are localized in exon 1, while three C-terminal amino acids are encoded by exon 2. The coding sequence was interrupted by translocations in three affected females: t(X;l), t(X;12), t(X;9), and submicroscopic deletions of the EDA gene were found in five males with CST syndrome, and point mutations were discovered in exon 1 in nine other patients. Northern blot analysis and in situ hybridization studies revealed that the EDA gene was expressed in the foetus, and postnatally in a specific type of skin cell and that the expression was limited to cells of ectodermal origin. A predicted protein product of the EDA gene contains 135 to 140 amino acids, organized in three distinct domains and may belong to class II transmembrane receptors.
Źródło:: Journal of Applied Genetics; 1997, 38, 3; 343-357
1234-1983
Pojawia się w:: Journal of Applied Genetics
Dostawca treści:: Biblioteka Nauki

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