Results 31 to 40 of about 60,649 (296)

Development of a research methodology and analysis of the stress state of a parting under the joint and downward mining of coal seams [PDF]

open access: yes, 2018
Purpose. The investigation of the stress-strain state (SSS) of a parting under the joint and downward mining of coal seams. Methods. The studies have been carried out on the basis of a computational experiment by means of the finite elements method ...
Barabash, M, Kovalevska, I, Snihur, V
core   +1 more source

Effects of Different Stitch Types and Stitch Combinations on the Seam Bursting Strength and Seam Strength of Workwear

open access: yesTekstil ve Konfeksiyon, 2022
Workwears are produced to protect the wearer against occupational or environmental hazards. One of the shared properties of several workwear types is resisting external forces during occupation. As for workwear fabrics, the seams of the workwear should be strong enough to resist uniaxial or multiaxial forces to maintain the properties in the cut and ...
openaire   +4 more sources

Assessing the seam strength of ultrasonically welded polyester and polypropylene spunbond nonwovens

open access: yesJournal of Industrial Textiles, 2022
The durability of the products such as personal protective clothes and facemasks are crucial for human health as these products prevent the spread of disease.
Emel ÇİNÇİK, Aynur İNAN ÜSTÜN
doaj   +1 more source

Geologic considerations in underground coal mining system design [PDF]

open access: yes, 1981
Geologic characteristics of coal resources which may impact new extraction technologies are identified and described to aid system designers and planners in their task of designing advanced coal extraction systems for the central Appalachian region ...
Camilli, F. A.   +3 more
core   +2 more sources

Uncovering the peel strength performance of multi-layer ultrasonic weld seams in PVC-coated hybrid textiles for weather protection

open access: yesJournal of Advanced Joining Processes, 2023
Ultrasonic welding is a fast and efficient solid-state welding process widely used in various industries. This study focuses on optimizing seam quality and peel strength in multi-layered hybrid textile materials using continuous ultrasonic welding.
Muktar Seid Hussen   +5 more
doaj   +1 more source

Picosecond laser welding of similar and dissimilar materials [PDF]

open access: yes, 2014
We report picosecond laser welding of similar and dissimilar materials based on plasma formation induced by a tightly focused beam from a 1030 nm, 10 ps, 400 kHz laser system.
Carter, Richard M.   +4 more
core   +1 more source

Development of an Airbag Geometry Specific for Autonomous Vehicles

open access: yesEng, 2023
Airbags are important safety devices in modern vehicles. However, their effectiveness is linked to the occupants being seated in standard positions. Although autonomous vehicles are less accident-prone, they are also equipped with airbags, similar to any
Bartolomeu Franco   +2 more
doaj   +1 more source

Параметри анкерних систем для кріплення похилих виробок [PDF]

open access: yes, 2019
Purpose is to analyze a state of the boundary rock mass of an inclined anchored working with the use of mathematical modeling methods and to determine rational anchoring parameters as well as length of the anchors if they are placed deeper under the ...
Chahovets, O., Tereshchuk, R.
core   +1 more source

Investigation of the Effects of Different Bias Angles of Stitching on Seam Performance of Wool Suits

open access: yesAUTEX Research Journal, 2019
Wool suits are always preferred due to their warmth retention in cool weather, comfort, and aesthetic features. Seams are very important for the quality of wool suits.
Öztaş Hande, Gürarda Ayça
doaj   +1 more source

Effect of Sc on the microstructure and mechanical properties of ZrB2 particles reinforced spray formed 7055 aluminum alloy TIG welded joint

open access: yesJournal of Materials Research and Technology, 2023
Adding nano ceramic particles to the weld seam is an effective way to improve the strength of the spray formed 7055 aluminum alloy welded joint. However, nano ceramic particles are prone to agglomeration, and the agglomerated nano ceramic particles in ...
Ting Huang   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy