Results 111 to 120 of about 1,659 (296)

Performance Analysis of Abradable Coating Systems for Aircraft Gas Turbines

Advanced Engineering Materials, EarlyView.
Three CoNiCrAlY/YSZ/MgAl2O4 abradable liner configurations on a nickel‐superalloy are evaluated by thermal‐gradient cycling and incursion tests. Laser ablation of the bondcoat and/or Y2O3‐stabilized ZrO2 (YSZ) intermediate layer increases mechanical interlocking and bonding for thick topcoats.
Hanna Heyl, Daniel Emil Mack, Martin Tandler, Susanne Schrüfer, Robert Vaßen   +4 more
wiley   +1 more source

Incorporation of Selenium into Sol–Gel‐Derived Bioactive Glass: Influence on Glass Structure, Bioactivity, and its Selective Cytotoxicity

Advanced Engineering Materials, EarlyView.
Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni, Thalita Marcolan Valverde, Talita Martins, Guilherme Mattos Jardim Costa, Alfredo Miranda de Goes, Marcello Rosa Dumont, Eduardo Henrique Martins Nunes, Marivalda de Magalhães Pereira   +7 more
wiley   +1 more source

Design and Deployment of a Metamaterial-Inspired Low-Profile Dual-Band Microstrip Patch Antenna with Defected Ground Structures for Vehicular Communication

Electrica
Metamaterial-inspired high-gain microstrip antennas have gained significant attention as viable solutions to address the demanding performance criteria in vehicular communication system applications.
Soumendra Pain, Umesh Shrikrishna Patkar, Abhijit Banerjee, Aritra Bhowmik, Tapas Mondal   +4 more
doaj   +1 more source

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

Advanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov, Oleksandr Bobukh, Christian Klose, Florian Nürnberger, Hans Jürgen Maier   +4 more
wiley   +1 more source

A new design of a miniature microstrip patch antenna using Defected Ground Structure DGS

, 2017
International audienceThe concept of Defected Ground Structures (DGS) has been developed to improve the characteristics of many microwave devices. For this purpose the DGS is also used in the microstrip antenna for some advantages such as antenna size ...
A. Tajmouati, Errkik, A., Tajmouati, A., L. El Abdellaoui, J. Zbitou, El Abdellaoui, L., Er-rebyiy, R., A. Errkik, Zbitou, J., Latrach, Mohamed, Er-Rebyiy, Ridouane, M. Latrach, R. Er-rebyiy, Tajmouati, Abdelali, Zbitou, Jamal   +14 more
core   +1 more source

Analysis of Isolation Techniques for Mutual Coupling Reduction in MIMO Antennas

Journal of Communications Software and Systems
This paper presents a comprehensive review of isolation enhancement techniques for MIMO systems, emphasizing their role in minimizing mutual coupling for modern wireless communication applications.
Ahmed Read Al-tameemi, Goh Chin Hock, Tiong Sieh Kiong, Taha Raad Al-Shaikhli, Mohammed S. Al Ani, Mohammad A. K. Al Ani   +5 more
doaj   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Reconfigurable CPW Band-Stop Filter Based on Loaded T-Shaped Defected Ground Structure

IEEE Access
This paper presents the design and implementation of a reconfigurable band-stop filter based on a coplanar waveguide (CPW) transmission line incorporating defected ground structures (DGS).
Claudia E. Perez-Martinez, Lourdes Martinez-Lopez, Rosalba Martinez-Lopez, Jose I. Martinez-Lopez   +3 more
doaj   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Impact of Defected Ground Structures on the Bandwidth of Branch Line Hybrids

, 2015
This paper investigates the impact of defected ground structures (DGS) on the operational bandwidth of microwave circuits. Branch line hybrids were selected to investigate DGS.
Polater, Ahmet Mert, Nesimoglu, Tayfun
core   +1 more source