Results 131 to 140 of about 34,163 (302)

Slow subcarrier-hopped Space Division Multiple Access OFDM systems

open access: yes, 2005
Recently Space Division Multiple Access (SDMA) assisted Multi-Input-Multi-Output (MIMO) OFDM systems invoking Multi-User Detection (MUD) techniques have attracted substantial research interests, which are capable of exploiting both transmitter ...
Ng, S.X., Jiang, M., Hanzo, L.
core  

Hydrogel Stack‐Tailored Logics and High‐Fidelity Multimodal Sensors Promoted by Precisely Evaluated Ionic Migration

open access: yesAdvanced Science, EarlyView.
Inspired by biological ion transport, this work introduces self‐powered multifunctional sensors utilizing tailored hydrogel stacks. Optimizing ionic migration with MXenes and carbon nanotubes achieves high‐performance energy harvesting and unique logic circuit functionality.
Haoran Chen   +9 more
wiley   +1 more source

Optical amplifiers for space division multiplexing (SDM)

open access: yes, 2017
Space division multiplexing (SDM) is one of the promising approaches to further increase the transmission capacity of optical fiber. In this talk, we will focus on the recent progresses on the SDM amplifiers and SDM components.
Jung, Yongmin   +3 more
core  

Photonic‐Enabled Energy‐Efficient Transparent Neuromorphic Computing Devices: A Review

open access: yesAdvanced Science, EarlyView.
Transparent photonic neuromorphic computing devices merge optics and brain‐inspired computing to overcome von Neumann bottlenecks with ultrafast, low‐energy processing. By exploiting transparent oxides, 2D materials, phase‐change materials, and hybrid heterostructures, these platforms enable photonic synapses, memory, and logic for see‐through edge ...
Shuvaraj Ghosh   +8 more
wiley   +1 more source

Nonlinearity Coefficients for Space-Division Multiplexing Fibers [PDF]

open access: yes
We review recent results on the nonlinearity coefficients of Manakov equations for multimode and multicore fibers in various regimes of linear coupling for space division multiplexing, and their implications on fiber design and data rates.
Carniello, P, Ferreira, FM, Hanik, N
core  

A Folded, Structure‐Integrated Bimodal Sensor Enabling Non‐Contact and Tactile Perception for Intelligent Robots

open access: yesAdvanced Science, EarlyView.
A foldable bimodal sensor integrates a triboelectric nanogenerator and graphene piezoresistive effect into a monolithic laser‐induced graphene film. It enables synchronous non‐contact and tactile perception, achieving a distance of 110 mm, a sensitivity of 11.2 kPa−1, and a response time of 10 ms.
Weixiong Yang   +10 more
wiley   +1 more source

Engineered Exosomal miR‐146a‐5p Reprograms BMSC Fate and Restores Mitochondrial Homeostasis in Glucocorticoid‐Induced Osteonecrosis of Femoral Head

open access: yesAdvanced Science, EarlyView.
Exosomal miR‐146a‐5p is identified as a pivotal regulator in steroid‐induced osteonecrosis. Its reduction activates NF‐κB signaling, compromises mitophagy, and disrupts mitochondrial bioenergetics, resulting in autophagic disequilibrium. Engineered exosomes delivering miR‐146a‐5p reinstate mitochondrial function, augment oxidative phosphorylation and ...
Zehui Lv   +13 more
wiley   +1 more source

SVD-Aided, Iteratively Detected Spatial Division Multiplexing Using Long-Range Channel Prediction

open access: yes, 2007
In this contribution iteratively detected spatial division multiplexing is investigated under the constraint of a fixed data throughput. Existing bit loading and transmit power allocation techniques are often optimized for maintaining both a fixed ...
Ng, S.X.   +5 more
core  

Concurrent data and power transmission using mode division multiplexing over a two-mode fiber

open access: yes
Next-generation mode division multiplexing (MDM) systems aim to integrate concurrent functionalities within a single optical fiber efficiently. In this work, we report on harnessing MDM to simultaneously provide data transmission and power delivery over ...
Ashry, Islam   +5 more
core   +1 more source

Interferometric time division FBG interrogator and multiplexer with static, dynamic, and absolute wavelength measurement capabilities

open access: yes, 2012
We report on the design and preliminary testing of an interferometric interrogator capable of large-scale time-division multiplexing of FBG sensors. The scheme employs a passive algorithm for phase demodulation, allowing changes in FBG sensor reflected ...
Philip Orr   +5 more
core   +1 more source

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