Results 1 to 10 of about 852 (164)
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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Multi-Objective Optimization of Ultrasonic Surface Rolling Process Parameters for TC4 Titanium Alloy with IWOA–RBF and MOGWO Algorithms [PDF]
MicromachinesA structured optimization approach was applied to ultrasonic surface rolling process (USRP) parameters, aiming to enhance the material surface characteristics of TC4 titanium alloy. To overcome the premature convergence and limited exploration capability
Yeshen Lan, Chuchu Rao, Yunpeng Lyu
doaj +2 more sources
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
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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
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Phased Antenna Array Implementation with USRP [PDF]
2017 IEEE Globecom Workshops (GC Wkshps), 2017 This paper presents the implementation of a phased antenna array with Universal Software Radio Peripheral (USRP). The antenna elements of the array are driven by individual USRP platforms. Hence, the synchronization and calibration of different platforms are required in phase and amplitude.
Sonkki Marko Tapani +2 more
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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
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Performance characterization of USRPs [PDF]
Analog Integrated Circuits and Signal Processing, 2017 This paper presents transmitter and receiver characterization and calibration results for software defined radio systems designed using the combination of RF front end hardware like USRPs (from Ettus Research) and software interfaces like GNU Radio. The main motivation for this study was the lack of useful references pertaining to calibration of such ...
Gayathri Ramasubramanian +1 more
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Practicing a record-and-replay system on USRP [PDF]
Proceedings of the second workshop on Software radio implementation forum, 2013 Signal recording and replaying is widely used in data analysis, device test, etc. Motivated by this fact, our paper focuses on developing a low-cost record-and-replay prototype based on USRP (Universal Software Radio Peripheral). In particular, we designed and developed a GPS (Global Positioning System) record-and-replay system, which can sample the ...
Jian Chen +3 more
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