Temat: bar method - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: A Tauberian Theorem for Weighted Means in Non-Archimedean Fields - Revisited and Revised
Autorzy:: Natarajan, P.N.
Powiązania:: https://bibliotekanauki.pl/articles/746449.pdf
Data publikacji:: 2014
Wydawca:: Polskie Towarzystwo Matematyczne
Tematy:: non-archimedean field
weighted mean (or \((\bar{N}, p_n)\) method), Tauberian theorem
Opis:: In this note, \(K\) denotes a complete, non-trivially valued, non-archimedean field. We correct a Tauberian theorem for weighted means in \(K\) proved earlier in [1].
Źródło:: Commentationes Mathematicae; 2014, 54, 2
0373-8299
Pojawia się w:: Commentationes Mathematicae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Application of comprehensive reinforcement technology in high-rise building
Autorzy:: Heping, Cheng
Wenchi, Yao
Powiązania:: https://bibliotekanauki.pl/articles/1852553.pdf
Data publikacji:: 2021
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: technologia zbrojenia kompleksowa
budynek wysokościowy
metoda zbrojenia sprężonymi prętami stalowymi
zastosowanie
comprehensive reinforcement technology
high-rise building
prestressed steel bar reinforcement method
application
Opis:: In the structural reinforcement of a high-rise residential building in Changzhou city, Jiangsu province, China, the technology of prestressed steel bar strengthening shear wall, which was initiated in China, was applied. Combined with the engineering quality inspection report, the project characteristics and the requirements of the construction party, various methods, such as increasing cross-section reinforcement method and staged replacement concrete reinforcement method, were comprehensively used to treat and reinforce the structures with different quality problems and different parts. In general, the stress and strain of the newly added part always lags behind the stress and strain of the original structure. This will cause the stress of the original structure is too high and the deformation is large, while the stress of the new part is still at a low level, which cannot fully play its role and its due reinforcement effect. Prestressed steel bar reinforced shear wall technology, through the prestressed steel bar on the prestressed steel bar, which is a good solution to this problem, avoid the phenomenon of stress lag, and ultimately not only shorten the construction period of reinforcement, but also ensure the quality of reinforcement and user use area, successfully passed the reinforcement special acceptance. The monitoring data also proved that the reinforcement measures adopted are safe, reliable and economical. This paper can provide reference for the effective development of similar reinforcement projects.
Źródło:: Archives of Civil Engineering; 2021, 67, 2; 231-246
1230-2945
Pojawia się w:: Archives of Civil Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Numerical analysis of a shell with a main shaped charge warhead stroke into a bar armour with square section
Autorzy:: Niezgoda, T.
Panowicz, R.
Sybilski, K.
Barnat, W.
Powiązania:: https://bibliotekanauki.pl/articles/247419.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: mechanics
finite elements method
bar armor
RPG
Opis:: Recent operations of Polish troops within the framework of peacemaking missions' uncovered weak points of the equipment used there. It turned out that one of the most significant threats is a shell equipped with a main shaped charge warhead used by partisan detachments. These can break even 900mm of shell-proof steel so it is very difflcult to protect anything from the shells. One of the ways of protection from high explosive anti-tank (HEAT) warheads is using bar armours. This paper focuses on analysis of a shell with PG-7G main shaped charge warhead stroke into a bar armor with a square section. This work presents a short description of the analyzed object. Moreover, there is a principle of operation of a shell with the speciflcation of the most trouble elements from the point ofview of high velocity partial stream creation. In addition, the paper indicates steps of a numerical model construction together with geometry simplifications and initial-marginal conditions. On the basis of the results the researchers evaluated the extent of destruction of shell key elements. Furthermore, the work indicates drawings with deformed parts and presents stresses maps of these elements. The summary states to what extent PG-7G shell stroke into the armor made of bars with a square section influences reduction of operation efficacy of this type of firearm. Calculations were conducted in LS-Dyna system, which is used for oscillation analyses with a finite elements method. In order to solve the motion equation the researchers used an ordinary integration method used for i.e. analyses of highly non-linear oscillation phenomena.
Źródło:: Journal of KONES; 2010, 17, 3; 327-332
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Analysis of free vibrations of cantilever bars with parabolically variable cross-sections using the Rayleighs method
Analiza drgań własnych prętów wspornikowych o parabolicznie zmiennych przekrojach poprzecznych przy wykorzystaniu metody Rayleigha
Autorzy:: Szlachetka, O.
Jaworski, J.
Chalecki, M.
Powiązania:: https://bibliotekanauki.pl/articles/40424.pdf
Data publikacji:: 2017
Wydawca:: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:: cantilever bar
vibration analysis
free vibration
cross-section
Rayleigh's method
Źródło:: Acta Scientiarum Polonorum. Architectura; 2017, 16, 4
1644-0633
Pojawia się w:: Acta Scientiarum Polonorum. Architectura
Dostawca treści:: Biblioteka Nauki

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