Results 31 to 40 of about 7,314 (217)

Molecular Engineering of Layered Halide Double Perovskites: Challenges and Opportunities in Optoelectronics and Beyond

open access: yesAdvanced Energy Materials, Volume 15, Issue 41, November 4, 2025.
Layered halide double perovskites have emerged as promising alternatives to toxic lead‐based low‐dimensional perovskite materials for more sustainable optoelectronics. Their molecular design and its impact on the material characteristics, as well as the resulting functionality, is reviewed while discussing challenges and opportunities for future ...
Maryam Ghasemi   +4 more
wiley   +1 more source

Blind Linear MMSE Receivers for MC-CDMA Systems [PDF]

open access: yesIEEE Transactions on Circuits and Systems I: Regular Papers, 2007
This paper studies blind constrained minimum output energy (CMOE)-based and subspace-based linear minimum mean-squared-error (LMMSE) detectors for multi-carrier code division multiple access (MC-CDMA) systems. By imposing quadratic weight constraint, the CMOE detector is made more robust against signature waveform mismatch, and a better performance ...
Chan, SC, Cheng, H
openaire   +3 more sources

Revealing Chronotypes Across Aquatic Species Using Acoustic Telemetry

open access: yesFish and Fisheries, Volume 26, Issue 6, Page 1134-1145, November 2025.
ABSTRACT Acoustic telemetry offers valuable opportunities to investigate individual variability in circadian‐related and other behaviours and how environmental cues shape these patterns in wild fish populations. However, this potential has not yet been fully exploited.
Martina Martorell‐Barceló   +27 more
wiley   +1 more source

Self‐Assembly Pathway Influence on Dehydropeptide‐Based Gel Properties and Drug Release

open access: yesMacromolecular Bioscience, Volume 25, Issue 9, September 2025.
In this work, it is explored how the gelation conditions affect the morphology, mechanical properties, and drug release of dehydropeptide‐based gels. The naphthalene‐capped dehydropeptide forms a crystal structure with a pore diameter of ≈4.08 Å. Gelation conditions can influence gel stiffness by nearly three orders of magnitude, in which the assembly ...
Sérgio R. S. Veloso   +11 more
wiley   +1 more source

Timing Synchronization for Mc-Cdma Systems Using a Time-Multiplexed Synchronization Channel

open access: yesASEAN Journal on Science and Technology for Development, 2017
In this paper, we present a synchronization algorithm for Multi-Carrier CDMA (MC-CDMA) systems using a time-multiplexed synchronization channel. The simulations results show that a system using proposed algorithm has much higher timing detection ...
Pham Hong Ky, Nguyen Duc Long
doaj   +1 more source

Impact of magnetic fields from tablets, laptops, smartphones, and household/leisure magnets on cardiac implantable electronic devices

open access: yesJournal of Arrhythmia, Volume 41, Issue 4, August 2025.
This study on 13 Cardiac implantable electronic device (CIED) models revealed that surface magnetic fields of tablets, laptops, smartphones, and household magnets exceeded 10 G, potentially triggering magnet response mode. Activation occurred at ≤15 mm for electronic devices and ≤7 mm for household magnets.
Norio Kamitani   +11 more
wiley   +1 more source

Multi-code Multicarrier CDMA: Performance Analysis

open access: yesJournal of Communications Software and Systems, 2006
A new multi-code multicarrier code division multiple access (MC-MC-CDMA) system is proposed and analyzed in afrequency selective fading channel. By allowing each user to transmit an M-ary code sequence, the proposed MC-MC-CDMA system can support various ...
Taeyoon Kim   +3 more
doaj  

MC-CDMA aided multi-user space-time shift keying in wideband channels [PDF]

open access: yes, 2013
In this paper, we propose multi-carrier code division multiple access (MC-CDMA)-aided space-time shift keying (STSK) for mitigating the performance erosion of the classic STSK scheme in dispersive channels, while supporting multiple users.
Chen, Sheng   +3 more
core   +1 more source

Wireless Power and Data Transfer Technologies for Flexible Bionic and Bioelectronic Interfaces: Materials and Applications

open access: yesAdvanced Materials Technologies, Volume 10, Issue 5, March 4, 2025.
This paper reviews the state‐of‐the‐art and recent advances in bio‐integrated wireless power and data transfer technologies for flexible bionics, wearable and implantable bioelectronics. The architectures, operating principles, materials, and application technologies are presented in detail.
Massimo Mariello, Christopher M. Proctor
wiley   +1 more source

Subcarrier Group Assignment for MC-CDMA Wireless Networks

open access: yesEURASIP Journal on Wireless Communications and Networking, 2007
Two interference-based subcarrier group assignment strategies in dynamic resource allocation are proposed for MC-CDMA wireless systems to achieve
Tho Le-Ngoc, Tallal El Shabrawy
doaj   +2 more sources

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