Results 61 to 70 of about 19,869 (147)

Lajes lisas nervuradas de concreto armado ao cisalhamento

open access: yesRevista IBRACON de Estruturas e Materiais
Os sistemas estruturais com lajes lisas nervuradas são os mais utilizados no Brasil quando a exigência principal é a disponibilidade de "layouts" flexíveis e grandes vãos com razoável economia.
S. S. M. Souza, D. R. C. Oliveira
doaj   +1 more source

Punch Biopsy of Synovial Membrane [PDF]

open access: bronze, 1951
Howard F. Polley, William H. Bickel
openalex   +1 more source

The influence of the piercing punch profile on the stress distribution on its cutting edge

open access: yesMATEC Web of Conferences, 2019
Modifying the piercing punch profile may have a positive effect on the belt perforation process. Using the proper shape of the tool may reduce the perforation force and improve the quality of the holes.
Wojtkowiak Dominik, Talaśka Krzysztof
doaj   +1 more source

Experimental work of effect of openings on the post-tensioned flat slab

open access: yesFracture and Structural Integrity
This study aims to evaluate the effect of various parameters on the behavior of the reinforced concrete flat slabs and the contribution of each design element in the punching shear strength.
Amal Zamrawi   +3 more
doaj   +1 more source

A transistorized transcribing card punch [PDF]

open access: bronze, 1957
C. T. Cole, K. L. Chien, C. H. Propster
openalex   +1 more source

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