Results 31 to 40 of about 19,869 (147)

Lajes lisas nervuradas bidirecionais com furos

open access: yesRevista IBRACON de Estruturas e Materiais
A passagem de tubulações em elementos estruturais ainda merece atenção especial dos projetistas, principalmente quando o modo de ruptura dos mesmos pode ser alterado devido às mudanças em seus comportamentos.
G. M. Mateus   +3 more
doaj   +1 more source

An Investigation of Punching the MWCNTs Doped Composite Plates by Using Different Cutting Profiles

open access: yesTehnički Vjesnik, 2021
In this study, glass fiber reinforced composite layers which are with and without additives of 0.1 wt.% multi walled carbon nanotubes (MWCNTs) of epoxy were manufactured by vacuum infusion method.
Ferhat Ceritbinmez, Ahmet Yapici*
doaj   +1 more source

The tangential punch biopsy [PDF]

open access: yesDermatology Online Journal, 2019
Dermatologists around the world widely utilize skin biopsies, which can be performed using shave, punch, incisional, or excisional techniques [1]. The punch biopsy allows a dermatologist to obtain a full-thickness skin sample. The post-biopsy wound heals by primary closure or second intention [2].
Breslavets, Maksym, Lapa, Tatiana
openaire   +4 more sources

Digital Twin-Driven Cyber-Physical System for Autonomously Controlling of Micro Punching System

open access: yesIEEE Access, 2019
Microstructure functional surface is widely used in an optical system because of its special micro-topological structure and particular physical properties.
Rongli Zhao   +6 more
doaj   +1 more source

Center-Punching Mechanical Clinching Process for Aluminum Alloy and Ultra-High-Strength Steel Sheets

open access: yesMetals
In recent years, with the rapid advancement of automotive lightweight technology, the mechanical clinching process between aluminum alloy and ultra-high-strength steel sheets has received extensive attention.
Ping Qiu   +4 more
doaj   +1 more source

Reinforced concrete flat slabs with openings at different distances from the column

open access: yesRevista IBRACON de Estruturas e Materiais, 2020
: The increase in the use of flat slabs and the need of the openings for the passage of installations, such as hydraulic and electrical, which significantly reduces the punching shear resistance capacity of the slab, makes the understanding of the ...
Diego da Silva Lourenço   +4 more
doaj   +1 more source

Research on process parameters of directional hydraulic punching considering creep effect in composite coal seam

open access: yesMeikuang Anquan
With the increasing depth of coal mining and the difficulty of gas control in China, the technology of directional hydraulic punching to enhance gas extraction in composite coal seam has been widely promoted and applied.
Yi LIU, Dingqi LI, Yubo CHEN
doaj   +1 more source

Material Research for the Production of Outdoor and Kitchen Knife Blades at Low Costs

open access: yesJournal of Mechanical Engineering, 2023
In today’s modern times, consumers have changed the idea of shopping. They want a functional product with performance at a low price. On the other hand, the consumer demands a variety of products in the market in terms of dimensions and usability. As the
Bruçi Mirlind   +3 more
doaj   +1 more source

Vibration Control of a High-Speed Precision Servo Numerically Controlled Punching Press: Multidomain Simulation and Experiments

open access: yesShock and Vibration, 2017
A three-degree-of-freedom mathematical vibration model of a high-speed punching press was developed in order to explore the vibration modes of the punching press.
Teng Xu   +3 more
doaj   +1 more source

The Last Punch [PDF]

open access: yesUfahamu: A Journal of African Studies, 1983
No ...
openaire   +3 more sources

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