Role of the micro/macro structure of welds in crack nucleation and propagation in aerospace aluminum-lithium alloy [PDF]
Al-Li alloys offer the benefits of increased strength, elastic modulus and lower densities as compared to conventional aluminum alloys. Martin Marietta Laboratories has developed an Al-Li alloy designated 2195 which is designated for use in the cryogenic
Talia, George E.
core +1 more source
Dentoalveolar Changes in the Premolar Region After Two Maxillary Expansion Protocols
ABSTRACT Objectives To evaluate the dentoalveolar effects on the upper first premolars after two maxillary expansion protocols—rapid maxillary expansion (RME) and alternate rapid maxillary expansion and constriction (Alt‐RAMEC)—before and 6 months after treatment.
Jaqueline Peter +6 more
wiley +1 more source
Nanosilica treatment enables moisture-resistant hydrophobic arc welding covered electrodes. [PDF]
Pasandeh M, Pouranvari M.
europepmc +1 more source
ABSTRACT Phosphorus (P) availability is strongly constrained in both acidic and calcareous soils due to fixation reactions, reducing nutrient‐use efficiency and driving excessive fertiliser inputs. This study develops and evaluates a series of chitosan–apatite–citrate (CAC) fertilisers prepared using four continuous‐flow manufacturing strategies: a ...
Tu Nguyen Quang Le +6 more
wiley +1 more source
Corrosion Behavior of High-Nitrogen Steel Hybrid Welded Joints Fabricated by Hybrid Laser-Arc Welding. [PDF]
You X +5 more
europepmc +1 more source
Forging Technical Career Skills in Virtual Reality: How Immersion Shapes Learning and Engagement
ABSTRACT Virtual reality (VR) is rapidly gaining popularity in vocational education and training (VET). We conducted a between‐subjects experiment to explore how VR modality (headset vs. desktop VR) influences trainee reactions and performance for a simulated welding task.
Benjamin D. Blachly +3 more
wiley +1 more source
Experimental and Simulation Study on Welding Characteristics and Parameters of Gas Metal Arc Welding for Q345qD Thick-Plate Steel. [PDF]
Zhang H +6 more
europepmc +1 more source
ABSTRACT Introduction Premature loss of primary molars remains a frequent clinical problem in pediatric dentistry and may lead to space loss, occlusal disturbances, and the need for future orthodontic intervention. Conventional space maintainers, such as the band‐and‐loop appliance, are effective in preserving arch length but do not restore occlusal ...
Luciana Duarte Caldas +3 more
wiley +1 more source
Effects of filler on the microstructure and corrosion of similar and dissimilar gas inert tungsten arc welding aluminum alloys joints. [PDF]
Gadallah EA +3 more
europepmc +1 more source
This paper proposes a hierarchical reconfigurable metasurface architecture (HRMA) to achieve comprehensive electromagnetic parameter modulation and on‐demand polymorphic function switching. The reconfigurable metasurface is divided into a programmable core (PC) and scenario‐guided functional modules (FMs), exhibiting significant flexibility and ...
Lihao Zhu +11 more
wiley +1 more source

