Results 1 to 10 of about 2,009 (147)

Video Segmentation of Wire + Arc Additive Manufacturing (WAAM) Using Visual Large Model [PDF]

open access: yesSensors
Process control and quality assurance of wire + arc additive manufacturing (WAAM) and automated welding rely heavily on in-process monitoring videos to quantify variables such as melt pool geometry, location and size of droplet transfer, arc ...
Shuo Feng   +9 more
doaj   +2 more sources

Enhancing the Ultrasonic Welding of Wood Using 3D Printed Lignin Energy Directors [PDF]

open access: yesAdvanced Science
Ultrasonic wood welding is an ecofriendly method for rapidly joining wooden components in less than 2 s. However, this dynamic process results in low mechanical performance and poor durability under wet conditions.
Muhamad Amani   +6 more
doaj   +2 more sources

Occupational Contact Urticaria, Protein Contact Dermatitis and Concomitant Airway Diseases in the Finnish Register of Occupational Diseases in 2005-2020: Main Causes and Occupations at Risk. [PDF]

open access: yesContact Dermatitis
This Finnish registry study shows that concomitant occupational asthma and rhinitis are common in patients with occupational contact urticaria or protein contact dermatitis, often sharing the same exposure. When evaluating occupational immediate allergy, both skin and airway symptoms should be considered.
Ojanen V   +4 more
europepmc   +2 more sources

Adhesiveless Bonding of Wood – A Review with a Focus on Wood Welding

open access: yesBioResources, 2021
Most industrially used synthetic wood adhesives release formaldehyde, which is carcinogenic for humans. Adhesiveless bonding of wood can be achieved using heat treatment by either hot-pressing method, suitable mainly for wood particles and fibres or by ...
Ajith K. A. Gedara   +3 more
doaj   +1 more source

Axial mechanical properties of welded orthogonal trapezoidal aluminum honeycomb as filler material for nuclear equipment impact limiter [PDF]

open access: yesScientific Reports
Lightweight porous structural materials have excellent energy absorption performance, and their application are gradually appeared. This paper takes the shock-absorbing material of nuclear equipment transportation casks as the starting point, and ...
Youdong Xing   +6 more
doaj   +2 more sources

The Influence of Different Wood Modifications on Pull-out Force of Rotary Welded Dowels

open access: yesDrvna Industrija, 2023
The increasing use of modified wood justifies the intention to use it in joints made by rotary welding with dowels. Thermal modification, for example, increases the dimensional stability of wood by reducing its hygroscopicity and water absorption, but it
Ivica Župčić   +4 more
doaj   +1 more source

Radiometric Constraints on the Timing, Tempo, and Effects of Large Igneous Province Emplacement

open access: yesGeophysical Monograph Series, Page 27-82., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jennifer Kasbohm   +2 more
wiley  

+2 more sources

Investigation and compare the tensile strength of hardwood dowel joints, made by glue and welding [PDF]

open access: yesتحقیقات علوم چوب و کاغذ ایران, 2017
The insertion of dowels into solid wood for furniture has been used for centuries. Recently, this simple technology has been upgraded. The objective of the research was to evaluate and compare the tensile strength of the joints made of wood dowel through
PANTEA OMRANI, Reza Eisapor
doaj   +1 more source

Rotational wood welding: Mechanical properties of thermally treated oak [PDF]

open access: yesGlasnik Šumarskog Fakulteta: Univerzitet u Beogradu, 2022
The paper examined the strength of rotationally welded joints between untreated beech dowels and samples of thermally modified and unmodified oak wood (used as substrates). The results were compared with the control group where beech dowels were
Veizović Marko   +3 more
doaj   +1 more source

Influence of Various Wood Species and Cross-Sections on Strength of a Dowel Welding Joint

open access: yesDrvna Industrija, 2014
Rotation welding is a new method used in wood welding. Heat that develops due to the friction on contact surfaces softens and melts the wood structure (melt is produced).
Ivica Župčić   +3 more
doaj   +1 more source

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