Results 41 to 50 of about 7,286 (186)

Implementation of Distributed Time Exchange Based Cooperative Forwarding [PDF]

open access: yes, 2012
In this paper, we design and implement time exchange (TE) based cooperative forwarding where nodes use transmission time slots as incentives for relaying.
Balasubramanian, Shantharam   +4 more
core   +1 more source

XOR‐Logic Phase Coding Programmable Metasurface for Low Power‐Consumption Systems

open access: yesAdvanced Science, EarlyView.
By leveraging XOR logic, the biasing‐network complexity of 2D programmable metasurfaces is reduced from m×n to m+n through efficient row‐column control. This enables versatile functions including beam deflection and beamforming, facilitating applications in wireless communications and beyond.
Ruichao Zhu   +10 more
wiley   +1 more source

Is there a place for pallidotomy in the modern treatment of parkinsons disease?

open access: yesЕндоваскулярна нейрорентгенохірургія, 2017
Objective – to determine the clinical significance of unilateral stereotactic radiofrequency pallidotomy (USRP) in patients with Parkinson's disease (PD) complicated by levodopa-induced dyskinesias (LID) and motor fluctuations (MF) one week and then one ...
VI. Tsymbaliuk   +3 more
doaj   +1 more source

The Grey-Taguchi method analysis for processing parameters optimization and experimental assessment of 42CrMo steel treated by ultrasonic surface rolling

open access: yesJournal of Materials Research and Technology, 2023
Static force, ultrasonic amplitude, feed rate, and rolling spacing parameters of 42CrMo steel treated by the ultrasonic surface rolling process (USRP) were optimized by the Grey-Taguchi method. Nine sets of experiments based on an orthogonal array design
Yuhui Yang   +5 more
doaj   +1 more source

LTE Spectrum Sharing Research Testbed: Integrated Hardware, Software, Network and Data

open access: yes, 2017
This paper presents Virginia Tech's wireless testbed supporting research on long-term evolution (LTE) signaling and radio frequency (RF) spectrum coexistence. LTE is continuously refined and new features released.
Marojevic, Vuk   +2 more
core   +2 more sources

Printable Liquid Metal‐Textiles for Deformation‐Insensitive and Electromagnetically Robust mmWave Devices

open access: yesAdvanced Science, EarlyView.
We present a textile‐compatible, self‐healing liquid metal ink and a dual‐mask printing technique for high‐resolution patterning. Using this approach, we demonstrate high‐performance millimeter‐wave (mmWave) electronic textiles that exhibit exceptional insensitivity to deformation.
Lu Ju   +11 more
wiley   +1 more source

Channel Sounding for the Masses: Low Complexity GNU 802.11b Channel Impulse Response Estimation

open access: yes, 2010
New techniques in cross-layer wireless networks are building demand for ubiquitous channel sounding, that is, the capability to measure channel impulse response (CIR) with any standard wireless network and node.
Firooz, Mohammad H.   +4 more
core   +1 more source

Hierarchical Reconfigurable Metasurface Based on Scenario‐Guided Functional Modules and Programmable Core

open access: yesAdvanced Science, EarlyView.
This paper proposes a hierarchical reconfigurable metasurface architecture (HRMA) to achieve comprehensive electromagnetic parameter modulation and on‐demand polymorphic function switching. The reconfigurable metasurface is divided into a programmable core (PC) and scenario‐guided functional modules (FMs), exhibiting significant flexibility and ...
Lihao Zhu   +11 more
wiley   +1 more source

Performance Analysis of OFDM under AWGN and Rayleigh Fading Channels Based on Software Defined Radio

open access: yesJurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems)
Orthogonal Frequency Division Multiplexing (OFDM) is a very efficient and popular modulation technique in modern wireless communication systems. OFDM offers advantages in terms of spectrum efficiency, resistance to multi-path interference, and is able to
Ivana Arum Dimarsasi   +2 more
doaj   +1 more source

Optimization of ZL104 Properties and Microstructure Study After Ultrasonic Rolling [PDF]

open access: yesMaterials Research
In this study, the surface of ZL104 was ultrasonically rolled (USRP) to provide better overall mechanical properties and corrosion resistance. USRP experiments were conducted on the surface by setting different parameters to improve the performance of ...
Renhui Liu   +8 more
doaj   +1 more source

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