Results 21 to 30 of about 60,649 (296)

Research on Mechanism and Control Technology of Rib Spalling in Soft Coal Seam of Deep Coal Mine

open access: yesAdvances in Materials Science and Engineering, 2021
In order to solve the difficult problem of coal wall spalling of soft seam in deep mining, the occurrence mechanism of coal wall spalling in deep mining is studied based on the limit equilibrium theory of D-P criterion.
Shaobo Li   +3 more
doaj   +1 more source

Influence of classified pore contents on the quasi-static and cyclic strength properties of the welded joint in gas-shielded metal arc welding of galvanized, high-strength steels

open access: yesJournal of Advanced Joining Processes, 2022
High-strength steel sheets are used in the automotive industry to save weight. In particularly, in the chassis area, high-strength steels are constantly replacing the previously used strength classes of 440–590 MPa.
M. Sarpe   +4 more
doaj   +1 more source

Impact of Different Stitch Types on Seam Strength and Seam Slippage

open access: yes, 2023
The durability of seams significantly influences the overall performance of garments during their intended use. Seam strength is contingent upon multiple factors, encompassing seam type, stitch type, stitches per inch (SPI), sewing thread count, fabric strength, and fabric type.
Islam, Md. Mazharul, Islam, Md. Nazmul
openaire   +2 more sources

Analysis of Mechanical Properties of Laminated Seams

open access: yesJournal of Natural Fibers, 2020
The main goal of this article is to analyze the seam quality by influence of lamination process parameters on the strength properties of laminated seams in cotton clothing products.
Halina Szafrańska, Ryszard Korycki
doaj   +1 more source

Effect of ultrasonic welding process parameters on peel strength of membranes for tents

open access: yesJournal of Engineered Fibers and Fabrics, 2022
Ultrasonic welding is a universal, clean, and secure alternative joining method. Alternative joining technologies are used increasingly to fulfill specific functional requirements of the seam, such as fluid impermeability to achieve positive bonding ...
Muktar Seid Hussen   +4 more
doaj   +1 more source

Simulation of micromechanical characteristics of coal seam grouting based on particle flow method

open access: yesMeikuang Anquan, 2022
Grouting method is one of the commonly used methods for soft roadway reinforcement. Through the discrete element simulation method, the grouting process of coal seam was studied, and the grouting effect under different coal strength and grouting ...
LIU Ming   +3 more
doaj   +1 more source

Rock burst risk evaluation based on equivalent surrounding rock strength

open access: yesInternational Journal of Mining Science and Technology, 2019
On-site investigations consistently show that the rock burst inherent to coal seams varies greatly with coal seam thickness. In this study, impact factors related to coal seam thickness and surrounding rock strength were analyzed and a corresponding rock
Jinglin Wen   +5 more
doaj   +1 more source

INVESTIGATION OF THE TENSILE STRENGTH OF AN UNTIED SEAM

open access: yesModern Technologies and Scientific and Technological Progress, 2020
Tests were performed with different adhesive compositions to determine the tear ...
Kseniya Kustikova   +2 more
openaire   +2 more sources

Investigation of the Strength of Textile Bonded Seams

open access: yesMaterials Science, 2012
The strength of the textile bonded seams was analyzed. Two or more fabric layers joining are based on use of base layers structural properties and thermoplastic properties of adhesive film used for bonding. Five commercial produced fabrics of different structure (woven, knitted, laminate) and fiber content (polyester, cotton, flax) were used in this ...
Jakubčionienė, Živilė   +6 more
openaire   +2 more sources

Cutting mechanical study of pick cutting coal seams with coal and rock interface

open access: yesEnergy Reports, 2022
Shearer is an indispensable and important equipment for coal mining and the mining efficiency of shearer depends on the performance of pick to a great extent.
Chenxu Luo   +4 more
doaj   +1 more source

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