Results 51 to 60 of about 19,869 (147)

Analysis of the influence of the cutting edge geometry on parameters of the perforation process for conveyor and transmission belts

open access: yesMATEC Web of Conferences, 2018
Perforated belts, which are used in vacuum conveyor belts, can have significantly different mechanical properties like strength and elasticity due to a variety of used materials and can have different thickness from very thin (0,7 mm) to thick belts (6 ...
Wojtkowiak Dominik   +3 more
doaj   +1 more source

Punching Holes in an Enzyme

open access: yesChemistry & Biology, 2009
Schramm and coworkers have punched holes into human purine nucleoside phosphorylase by substitution of glycine for aromatic amino acid residues at a protein lid. The results of studies on the enzymes with holes illuminate hidden chemistry that occurs at the enzyme active site.
openaire   +3 more sources

CALCULATION OF SANDWICH STRUCTURES UNDER DYNAMIC LOAD CONCENTRATED LOAD

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2016
Work is devoted to theoretical researches of calculation of the three-layer designs (TLD) at dynamic loading by the concentrated loading. On these theoretical researches graphic and analytical dependences of relative thickness of punching of freely ...
R. M. Kerimov   +2 more
doaj   +1 more source

Slabs strengthened for punching shear with post-installed steel and CFRP connectors

open access: yesRevista IBRACON de Estruturas e Materiais, 2019
Structural accidents due to punching shear failures have been reported in flat slab buildings. Design recommendations presented by codes can lead to entirely different punching shear resistance estimates for similar situations.
M. J. M. PEREIRA FILHO   +4 more
doaj   +2 more sources

An Incursion on Punching of Reinforced Concrete Flat Slabs [PDF]

open access: yesBulletin of the Polytechnic Institute of Jassy: Constructions, Architechture Section, 2009
Starting from the early 60s continuous studies have been made regarding punching of concrete flat slabs. The evolution of technology and calculus systems influenced this engineering branch.
Dan-Vasile Bompa, Traian Oneţ
doaj  

Investigation of monolithic frame with initial punching damage under accidental impacts [PDF]

open access: yesE3S Web of Conferences
According to regulations and standards, all buildings and structures must fulfil the requirements for mechanical safety. At the same time, the safety of structures must be ensured throughout their entire service life. The annual increase in the number of
Alekseytsev Anatoly Viktorovich   +1 more
doaj   +1 more source

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