Results 51 to 60 of about 210,468 (297)

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

open access: yesAdvanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa   +9 more
wiley   +1 more source

Interaction of Ladle Slag With Varying SiO2 Content and Recyclate‐Based MgO–C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
Ladle slags (CaO/Al2O3 = 1) with 1–20 wt% SiO2 were investigated in contact with industrial MgO–C refractories fabricated from fresh magnesia and 50 wt% recyclate. The sessile drop method at 1600°C reveals intensive gas formation, delayed slag infiltration in recyclate‐based samples, and, under high‐SiO2 slag, formation of a dense MgAl2O4‐rich ...
Anton Yehorov   +6 more
wiley   +1 more source

MODELING OF MANAGEMENT SYSTEM WITH INERTIAL FORCES COMPENSATION FUNCTIONING ALGORITHMS

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2019
The analysis results of inertial forces effect on the behavior of cargo and trolley, development and research methods of compensation this forces in anti-sway control systems are presented.
A. V. Pashuk   +2 more
doaj  

Analysis of the supporting head fracture of a lifting mechanism [PDF]

open access: yesE3S Web of Conferences, 2019
This paper introduces the working principle of a lifting mechanism and analyzes the end factors of the fault using the fault tree analysis method [1].
Xing-chao WU, Jie Zhang
doaj   +1 more source

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb   +6 more
wiley   +1 more source

Multi-mode Motion Opening Mechanism Design for Aircraft Door Based on the Bricard Mechanism

open access: yesJixie chuandong, 2023
The aircraft door must be smoothly linked with the outer surface of the fuselage and realize the sealing function of the inner and outer boundaries of the fuselage at the same time.
Peng Renhui   +4 more
doaj  

Derivative Chameleons

open access: yes, 2012
We consider generalized chameleon models where the conformal coupling between matter and gravitational geometries is not only a function of the chameleon field \phi, but also of its derivatives via higher order co-ordinate invariants.
Noller, Johannes
core   +1 more source

A Profile of Injuries Sustained by Firefighters: A Critical Review [PDF]

open access: yes, 2019
Firefighters, along with other tactical personnel, are at a high risk of work-related physical injury above that of the private sector. The aim of this critical narrative review was to identify, critically appraise and synthesise key findings from recent
Canetti, Elisa   +3 more
core   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

open access: yesAdvanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich   +3 more
wiley   +1 more source

High-precision angle adaptive control simulation of synchronous motor for automatic lifting and boarding equipment of aircraft platform

open access: yesScientific Reports, 2023
In order to improve the accuracy and adaptability of the Angle control of the aircraft platform automatic lifting and boarding synchronous motors, the high precision Angle adaptive control method of the aircraft platform automatic lifting and boarding ...
Zhuo Zhang
doaj   +1 more source

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