Results 1 to 10 of about 7,217 (119)
Study on microstructure of 42CrMo steel by ultrasonic surface rolling process [PDF]
Scientific Reports, 2023 To explore the microstructure formation mechanism of 42CrMo steel under the strengthening of ultrasonic surface rolling process (USRP), the combination of theoretical analysis and experiment was used to conduct in-depth research on USRP.
Haojie Wang +3 more
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Surface Microstructure Refinement and Mechanical Properties of GCr15 Steels Improved During Ultrasonic Surface Rolling Processing [PDF]
Materials Research, 2023 In this paper, ultrasonic surface rolling processing (USRP) was used to strengthen GCr15-bearing steel. A finite element three-dimensional model of USRP was established to analyze the residual compressive stress and equivalent plastic strain distribution
Xianmeng Xue +4 more
doaj +1 more source
The Joint Channel Coding and Pre-Distortion Technique on the USRP-Based MIMO-OFDM System
Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi), 2023 Modern wireless communication systems use orthogonal frequency division multiplexing (OFDM), a multi-carrier modulation method that resists multipath channels and provides bandwidth efficiency. OFDM is generally used with a Multiple-Input Multiple-Output
Melki Mario Gulo +4 more
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Ultrasonic Surface Rolling Process: Properties, Characterization, and Applications
Applied Sciences, 2021 Ultrasonic surface rolling process (USRP) is a novel surface severe plastic deformation (SPD) method that integrates ultrasonic impact peening (UIP) and deep rolling (DR) to enhance the surface integrity and surface mechanical properties of engineering ...
Merbin John +6 more
doaj +1 more source
Crystals, 2023 To repair or improve the performance of H13 hot working molds through the additive manufacturing process, IN 718 was coated on H13 die steel by high-speed laser cladding followed by an ultrasonic surface rolling process (USRP).
Jingbin Hao +3 more
doaj +1 more source
People effects on IoT indoor wireless channel characterization
Revista Principia, 2021 Wireless communication under 1 GHz is suitable for Internet of Things (IoT) applications due to larger coverage capability with less power consumption.
Millena Michely Medeiros Campos +5 more
doaj +1 more source
Θ(1) Time Algorithm for Master Selection in Ad-hoc Wireless Networks [PDF]
International Journal of Electronics and Telecommunications, 2020 This paper details a hardware implementation of a distributed Θ(1) time algorithm allows to select dynamically the master device in ad-hoc or cluster-based networks in a constant time regardless the number of devices in the same cluster.
Mohammed El Khattabi +2 more
doaj +1 more source
Ultrasonic surface rolling strengthening and its parameter optimization on bearing raceway
Materials & Design, 2023 For the first time, the ultrasonic surface rolling processing (USRP) technology was applied to a real bearing raceway, and a finite element simulation model for USRP on a bearing raceway was established.
Yongjie Cheng +5 more
doaj +1 more source
Enabling Wireless In-band Full-duplex [PDF]
International Journal of Electronics and Telecommunications, 2019 This paper presents a baseband model and an enhanced implementation of the wireless full duplex analog method introduced by [1].Unlike usual methods based on hardware and software self- interference cancelation, the proposed design relies on FSK ...
Jelloul Elmesbahi +4 more
doaj +1 more source
Implementasi skema pengacakan subcarrier OFDM dengan algoritma RSA pada NI-USRP
Jurnal Eltek, 2022 Keamanan jaringan nirkabel merupakan salah satu hal terpenting dalam sistem komunikasi. Karena sinyal dikirim dari pengirim melalui saluran nirkabel, tidak hanya penerima yang sah, tetapi juga penyadap dapat menangkap dan menyimpan sinyal informasi ...
Nihayatus Sa’adah +2 more
doaj +1 more source