Results 121 to 130 of about 213,036 (304)

The earth’s core: an approach from first principles

, 2004
The Earth’s core is largely composed of iron (Fe), alloyed with less dense elements such as sulphur, silicon and/or oxygen. The phase relations and physical properties of both solid and liquid Fe-alloys are therefore of great geophysical importance. As
Gillan, M.J., Vočadlo, L., L. Vočadlo, M. J. Gillan, G. David Price, G. D. Price, D. Alfè, Price, G.D., Alfè, D.   +8 more
core  

Encyclopedia of 2D β′‐In2Se3 Growth Using Chemical Vapor Deposition: The Effects of Synthesis Parameters Onto Material Quality

Advanced Engineering Materials, EarlyView.
A distinct semi‐confined inner‐tube chemical vapor deposition geometry enables reproducible, large‐area growth of phase‐pure 2D β′‐In2Se3 from InI + Se precursors. Engineering local vapor transport and optimizing precursor delivery and temperature–time conditions yield uniform continuous films.
Dasun P. W. Guruge, P. Sanju S. Panawala, Joseph F. S. Fernando, Zhenhuan Chen, Chao Zhang, Dong‐Chen Qi, Liangzhi Kou, Konstantin L. Firestein, Dmitri V. Golberg   +8 more
wiley   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

Advanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele, Hossein Ipakchi, Tizazu H. Mekonnen   +2 more
wiley   +1 more source

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

Advanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev, Noah‐Lean Roschlaub, Anne Jung   +2 more
wiley   +1 more source

Research on Welding Technology of Bimetal Composite Pipe

Shiyou jixie, 2016
To compare the performance of metallurgical composite pipe welded joints with two welding processes (one was Ni625 wire welding, another was layered welding, including Ni625 welding wire for root layer, 316L wire welding for transition layer and J507 rod
Liu Dongming, Han Bin, Li Liying
doaj  

The role of detailed gas and dust opacities in shaping the evolution of the inner disc edge subject to episodic accretion

Astronomy & Astrophysics
Context. The transition in turbulence in the inner regions of protoplanetary discs and the closely connected dust sublimation front lead to a periodic instability, manifesting as episodic accretion outbursts.
Cecil M., Flock M., Malygin M. G., Kuiper R., Sudarshan P., Ziampras A., Elbakyan V. G.   +6 more
doaj   +1 more source

Influence of Si Content and Milling Duration on the Microstructure and Mechanical–Tribological Properties of AlCoCrFeNiSi High‐Entropy Alloys

Advanced Engineering Materials, EarlyView.
Si‐doped AlCoCrFeNi high‐entropy alloys are synthesized by mechanical alloying to reveal the effect of Si content and milling time on phase evolution, microstructural refinement, and tribological behavior. A transition from FCC to BCC structure, significant grain refinement, and enhanced hardness and wear resistance are achieved, with the 4 at% Si ...
Mustafa Okumuş, Mehmet Emin Demir, Sercan Özpınar   +2 more
wiley   +1 more source

Reconstructing the Avalon continent: marginal to inner platform transition in the Cambrian of southern New Brunswick

, 1996
A west to east, marginal to inner Avalonian platform transition, comparable to that in southeast Newfoundland and southern Britain, is present in the Cambrian of southern New Brunswick.
Ed Landing
core   +1 more source

Design and Analysis of Compression–Torsion Coupling Metamaterials Using the Golden Section Method

Advanced Engineering Materials, EarlyView.
A novel compression–torsion metamaterial is engineered using inclined rods and symmetry breaking. To optimize its torsional performance, the golden section method is employed. The mechanical response of the metamaterial is validated through both numerical analysis and experimental validation.
Amirhossein Hassani, Sara Bagherifard
wiley   +1 more source

Short Takeoff and Vertical Landing Aircraft Deceleration Transition Control Based on Adaptive Control

Guidance, Navigation and Control
Addressing the issues of nonlinearity, control redundancy and coupling, and system uncertainties in the deceleration transition process from level flight to hover in short takeoff and vertical landing (STOVL) aircraft, this paper establishes a six-degree-
Yifan Li, Yuchun Zou, Jian Ding, Senlin Liu, Ziyang Zhen   +4 more
doaj   +1 more source