Results 91 to 100 of about 5,180,273 (194)

Peak-to-Average Power Reduction in Space

open access: yes, 2005
Introduction: The combination of multiple-antenna techniques, often collectively referred to as multiple-input multiple-output (MIMO), with the multicarrier transmission scheme orthogonal frequency division multiplexing (OFDM) is a very promising ...
Division Multiplexing Based
core  

Recital on Multicarrier Communications: Space-Time Coded versus Adaptive OFDM/MC-CDMA

open access: yes, 2004
This overview portrays the evolution of multi-carrier systems from their conception and demonstrates that they are capable of supporting the requirements of future wireless systems of the next generation.
Munster, M   +3 more
core   +1 more source

Research on Four Core Fiber WDM Device Technology

open access: yesGuangtongxin yanjiu
Space division multiplexing technology is one of the effective ways to improve the transmission capacity of optical communication system. The main technologies include Multi Core Fiber (MCF), few mode multiplexing and orbital angular momentum ...
CHEN Li   +3 more
doaj  

Efficient Polarization‐Entangled Photon‐Pair Generation by a Fiber‐In‐Line van der Waals Material

open access: yesAdvanced Science, EarlyView.
Telecom‐wavelength polarization‐entangled photon pairs are generated in a van der Waals‐material‐integrated all‐fiber device via spontaneous parametric down‐conversion. The demonstrated fiberized quantum light source bridges emerging 2D nonlinear materials and practical quantum photonic systems, opening new opportunities for scalable fiber‐based ...
Jungseok Choi   +11 more
wiley   +1 more source

Human Dental Pulp Stem Cell Secretome Restores Ischemic Stroke–Impaired Motor and Cognitive Functions by Reprogramming Redox and Inflammatory Signaling

open access: yesAdvanced Science, EarlyView.
Human dental pulp stem cell secretome emerges as a cell‐free therapeutic strategy for ischemic stroke by reprogramming redox and inflammatory signaling. hDPSC secretome‐derived antioxidant and immunomodulatory factors suppress the TLR4–NOX–ROS–NF‐κB axis, reduce microglial inflammatory responses and apoptosis, and promote neurogenesis, angiogenesis ...
Kyung‐Joo Seong   +8 more
wiley   +1 more source

Super‐Multiplexed Label‐Free Raman Imaging Uncovers Novel Testicular Metabolic Couplings for Residual Body and Spermatogonial Differentiation

open access: yesAdvanced Science, EarlyView.
Super‐multiplexed Label‐free Raman Imaging (SLRI) enables 2D/3D metabolic mapping of intact Drosophila testes. Moving beyond descriptive morphology, it establishes a multidimensional tool for tissue metabolic remodeling, and offers a generalizable platform for complex tissue analysis, with implications extending to development and disease. ABSTRACT The
Jiaxin Li   +23 more
wiley   +1 more source

Space-Time Coding for High-Throughput Interleave Division Multiplexing Aided Multi-Source Co-Operation

open access: yes, 2008
Designed is an error-resilient, yet high-throughput interleave division multiplexing based space-time code suitable for multi-source co-operation.
Zhang, Rong, Hanzo, Lajos
core   +1 more source

Opportunities, challenges and requirements for introducing space division multiplexing in fibre optical networks

open access: yesIET Optoelectronics
In the long‐term, enabling data transmission over additional wavelength bands offered by the installed fibre infrastructure is not sufficient to satisfy the continuously increasing demand for capacity.
Gabriele Di Rosa, Lutz Rapp
doaj   +1 more source

Aberrant GRP78 Phase Transition Sustains Endothelial IRE1α Signaling and Drives Blood–Brain Barrier Failure in Cerebral Amyloid Angiopathy

open access: yesAdvanced Science, EarlyView.
Vascular Aβ40 corrupts GRP78 phase behavior in brain endothelial cells, sustaining IRE1α–TRAF2–JNK signaling and driving apoptosis, tight junction loss, and blood–brain barrier failure in cerebral amyloid angiopathy. Pharmacological IRE1α inhibition restores vascular integrity, reduces leakage, and improves functional outcomes, revealing a targetable ...
Honglin Zheng   +19 more
wiley   +1 more source

Computation and Structure‐Guided Arginine Scanning Engineers a Hyperactive AP Endonuclease for Multiplex Viral RNA Sensing

open access: yesAdvanced Science, EarlyView.
Computational and structure‐guided arginine scanning rewires the DNA‐binding interface of APE1 to create APE1‐Evo, a hyperactive yet specific AP endonuclease. Integrated into the NAPTUNE‐V2.0 cascade, APE1‐Evo enables amplification‐free, multiplex viral RNA sensing for dengue virus and influenza A/B, highlighting a general strategy for engineering ...
Junlan Wang   +20 more
wiley   +1 more source

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