Results 71 to 80 of about 442,961 (254)

High‐Temperature Phase Transformation in a V‐9Si‐6.5B Alloy: The Kinetic and Crystallographic Pathway From V5SiB2 to V8SiB4

Advanced Engineering Materials, EarlyView.
In situ synchrotron high‐energy X‐ray diffraction reveals the real‐time high‐temperature phase evolution of a ternary V‐9Si‐6.5B alloy. The study uncovers a kinetically delayed V5SiB2 → V8SiB4 transformation governed by massive structural and chemical barriers.
Zahra Sabeti, Andreas Stark, Roja Rani Korrayi, Florian Pyczak, Georg Hasemann   +4 more
wiley   +1 more source

Distinct Microstructural Characteristic Lengths Defining Notch Fatigue Crack Initiation and Propagation, and Defect Tolerance in Advanced Steels

Advanced Engineering Materials, EarlyView.
Schematic representation of modes of microcrack nucleation, growth and temporary arrestment at different boundaries, with the criteria for crack propagation in three scenarios: (1) large notch, (2) defect/small sharp notch, and (3) long crack. This work revisits and integrates results on the fatigue behavior of advanced bainitic steels (in particular ...
Lucia Morales‐Rivas
wiley   +1 more source

Joint time and power allocation for uplink cooperative non-orthogonal multiple access based massive machine-type communication Network

International Journal of Distributed Sensor Networks, 2018
Non-orthogonal multiple access is an essential promising solution to support large-scale connectivity required by massive machine-type communication scenario defined in the fifth generation (5G) mobile communication system.
Shujun Han, Xiaodong Xu, Litong Zhao, Xiaofeng Tao   +3 more
doaj   +1 more source

Unsourced Multiple Access: A Coding Paradigm for Massive Random Access

Proceedings of the IEEE
Proceedings of the IEEE, accepted for ...
Gianluigi Liva, Yury Polyanskiy
openaire   +3 more sources

On the Fundamental Limits of MIMO Massive Access Communication

CoRR, 2019
Submit to IEEE Transactions on Information ...
Fan Wei 0004, Yongpeng Wu 0001, Wen Chen 0001, Yanlin Geng, Giuseppe Caire   +4 more
openaire   +3 more sources

Simulation‐Based Analysis of Insert Pull‐Out in Nickel‐Polyurethane Hybrid Foams Using CT‐Derived Geometries

Advanced Engineering Materials, EarlyView.
CT‐based finite element simulations combined with in situ X‐ray computed tomography are used to analyze insert pull‐out in nickel‐coated polymer foams. Despite variations in material parameters, deformation consistently concentrates within a narrow annular region around the insert.
Yannik Bautz, Jonas Fell, Hendrik Jost, Stefan Diebels, Hans‐Georg Herrmann   +4 more
wiley   +1 more source

Priority-Based Clustered Random Access Scheme for Efficient 5G mMTC and URLLC Performance

IEEE Access
In the absence of efficient access management, the massive deployment of machine-type communication devices (MTCDs) in fifth-generation (5G) wireless networks can lead to congestion, increased access delay, and network overload. Notwithstanding the small
Paul Orim, Joyce Mwangama
doaj   +1 more source

Morphology, Transport, and Dynamics of Protein Adsorption in Open‐Cell Metal Foam

Advanced Engineering Materials, EarlyView.
Stainless steel (SS) open‐cell foams are shown to adsorb more protein per unit area than previously reported 316L SS and chromium oxide surfaces under static and flow conditions. An integrated approach combining 3D pore imaging, flow simulation, and protein adsorption experiments characterizes the foam’s performance.
Chinmaya Prerana Inguva, Joseph Lavoie, Afsaneh Rabiei   +2 more
wiley   +1 more source

High‐Entropy Alloy Interlayers Toward Advanced Joining for High‐Performance Structural Applications: Current Progress and Emerging Challenges

Advanced Engineering Materials, EarlyView.
HEA interlayers offer a versatile route for joining high‐performance structural materials. Their compositional and structural design regulates interfacial reactions, suppresses brittle IMCs, and improves metallurgical bonding. Sandwich interlayers further integrate defect healing with precipitation strengthening, enabling improved strength–ductility ...
Lin Yuan, Jiafen Song, Jinglong Li, Jiangtao Xiong, Tao Yang   +4 more
wiley   +1 more source

Access and mobility management technologies for 6G satellite communications network

Dianxin kexue, 2021
Analsisand outlook for satellite communication access and mobility management technology in 6G network was presented.Firstly, the access technology of current global representative satellite mobile communications system was introduced, as well as the ...
Xiaowen WU, Xiang LING, Lidong ZHU, Zhenfeng JIAO, Jian CHENG, Bo YANG   +5 more
doaj   +2 more sources