Results 31 to 40 of about 11,859 (176)

Directional‐DRX for 5G wireless communications

Electronics Letters, 2016
Directional‐discontinuous reception (D‐DRX) is proposed for millimetre‐wave enabled fifth‐generation communications. In addition to conventional active, short‐sleep and long‐sleep states, the proposed mechanism considers a separate beam searching state, to address alignment of directional beams between user equipment (UE) and evolved node B after a ...
Agiwal, M, Maheshwari, MK, Saxena, N, Roy, A   +3 more
openaire   +1 more source

Investigating the influence of Si on dynamic recrystallization during hot deformation behavior of ultra-high-strength lightweight steel

Journal of Materials Research and Technology, 2023
In this work, we systematically evaluated the effect of Si on the dynamic recrystallization (DRX) during hot deformation behavior of a novel high-strength rolled Medium Mn steel.
Zhenshan Zhang, Chenghao Song, Wenyuan Wu, Haoliang Wang, Zhenzhong Sun   +4 more
doaj   +1 more source

Extrinsic Limitations of Stealthy Hyperuniform Devices

Advanced Optical Materials, EarlyView.
Stealthy hyperuniform devices exhibit a scattering‐free angular region whose extent follows a simple quenching equation. Experimental measurements confirm this prediction but reveal quenching efficiencies far below theoretical expectations. Multiple scattering and finite‐size effects are quantified, establishing realistic performance limits for ...
Yuhao Xu, Miao Chen, Louis Forestier, Franck Carcenac, Laurent Mazenq, Philippe Lalanne   +5 more
wiley   +1 more source

Performance Comparison of External Active States for LTE DRX and HD-DRX Scenarios Based on Semi-Markov in 4G and 5G Networks [PDF]

Fayoum University Journal of Engineering
Energy consumption is one of the most vital obstacles which face wireless mobile communications to satisfy the User Equipment (UE) with great multimedia services. Unfortunately, the UE battery energy is more absorbed with higher users' requirements.
Mustafa Sallam, Mohamed Mahmoud
doaj   +1 more source

Systematic investigation of the microstructure evolution and dynamic recrystallization mechanisms of as-cast Fe–TiB2 composites under different hot deformation parameters

Journal of Materials Research and Technology, 2023
Fe–TiB2 composite shows great potential in lightweight materials for automotive parts due to its lightweight, high strength and high specific modulus etc.
Kai-yao Wang, Yu-jiao Ke, Jia-sheng Wang, Xin-gang Liu, Wen-wen Zhang, Ying Guo, Gen Sasaki   +6 more
doaj   +1 more source

Synergistic effect of Mn + Sc additions on the microstructure evolution and mechanical properties of Mg-Gd-Y-Mn-Sc alloy

Journal of Materials Research and Technology, 2022
Mg-Gd-Y-Mn-Sc alloys with different Mn + Sc contents were prepared by hot extrusion and ageing treatment. The effect of Mn + Sc additions on the microstructures, tensile properties, and corresponding strengthening mechanisms of the as-extruded and peak ...
Zhao Yang, Gang Wang, Chao Xu, Miao Wang, Taiki Nakata, Hongyu Xu, Lin Geng, Shigeharu Kamado   +7 more
doaj   +1 more source

A Comprehensive Study of Dynamic Recrystallization Behavior of Mg Alloy with 3 wt.% Bi Addition

Metals, 2021
The effect of the addition of bismuth on the dynamic recrystallization (DRX) behavior of the matrix has been investigated by comparing coarse grain pure Mg with the addition of 3 wt.% Bi, using a uniaxial compression test in the temperature range of 473 ...
Hui Yu, Hao Liu, Binan Jiang, Wei Yu, Shaoming Kang, Weili Cheng, Sunghyuk Park, Dong Chen, Fuxing Yin, Kwangseon Shin, Jinyao Mu, Xiongwei Cui, Jianghai Li   +12 more
doaj   +1 more source

Microstructure evolution mechanisms and a physically-based constitutive model for an Al–Zn–Mg–Cu–Zr aluminum alloy during hot deformation

Journal of Materials Research and Technology, 2023
High-temperature flow features of the Al−Zn−Mg−Cu−Zr aluminum alloy was revealed by hot compression tests. The evolution mechanisms of dislocation clusters, subgrain, and dynamic recrystallization (DRX) grains, are thoroughly explored by EBSD and TEM ...
Daoguang He, Han Xie, Y.C. Lin, Xin-Tao Yan, Zhengbing Xu, Gang Xiao   +5 more
doaj   +1 more source

Novel nitro‐quinoline photoinitiators for composites: exploring the effects of hydroxyl and methacrylate substituents on the photopolymerization of dimethacrylate matrices

Polymer International, EarlyView.
New quinoline derivatives proved to be efficient photoinitiators for dental resin monomers under two different light‐curing units, yielding favorable conversion, color and fluorescence results in the presence of different co‐initiators, including an eco‐friendly alternative.
Vitor Fernandes Moreno, Luiz Carlos da Silva‐Filho, Adilson Yoshio Furuse   +2 more
wiley   +1 more source

Multifaceted Behavior and Versatility Features of Ferritic Stainless Steels, Part II: Investigating Electromagnetic, Mechanical, and Corrosion Behavior

steel research international, EarlyView.
This review's second part details the mechanical, corrosion, and electromagnetic behaviors of FSSs. It integrates the foundational microstructure (texture/defects/precipitates) and processing effects from Part I to establish and analyze complex property–property interrelationships critical for high‐performance applications.
Shahab Bazri, Carlo Mapelli, Davide Mombelli   +2 more
wiley   +1 more source