Results 131 to 140 of about 256,867 (328)

Excitonic Landscapes in Monolayer Lateral Heterostructures Revealed by Unsupervised Machine Learning

Advanced Optical Materials, EarlyView.
Hyperspectral photoluminescence data from graded MoxW1 − xS2 alloys and monolayer MoS2–WS2 lateral heterostructures are analyzed using unsupervised machine learning. The combined use of PCA, t‐SNE, and DBSCAN uncovers distinct excitonic regions that trace how composition, strain, and defects modulate optical responses in these 2D materials.
Maninder Kaur, Nicolas T. Sandino, Jason P. Terry, Mahdi Ghafariasl, Yohannes Abate   +4 more
wiley   +1 more source

A Stochastic Geometry Analysis of Hybrid Cellular-Adhoc CDMA Networks

International Journal of Information and Communication Technology Research, 2011
This paper studies the impact of using multihop wireless adhoc network in conjunction with cellular networks under a probabilistic routing strategy. Our objective is to obtain the outage probability of the twodimensional hybrid CDMA network under path ...
Neda Banivaheb, Keivan Navaie
doaj  

Unified Stochastic Geometry Modeling and Analysis of Cellular Networks in LOS/NLOS and Shadowed Fading [PDF]

, 2016
Imène Trigui, Sofiène Affes, Ben Liang
openalex   +1 more source

Cell-Free Massive MIMO with Finite Fronthaul Capacity: A Stochastic Geometry Perspective [PDF]

, 2022
Priyabrata Parida, Harpreet S. Dhillon
openalex   +1 more source

Enhanced Trapping with an Optimized Graphene‐Based Bowtie Plasmonic Nanotweezer: Design, Analysis, and Bioanalytical Applications

Advanced Photonics Research, EarlyView.
A graphene‐based bowtie plasmonic nanotweezer is designed and optimized using particle swarm optimization and transfer matrix analysis. The structure achieves strong field confinement, delivering trapping forces up to 6 nN W−1 for 10 nm bioparticles with sixfold lower power requirements than conventional designs.
Saba Ebrahimpanah, Mohammad Hazhir Mozaffari, Ali Farmani   +2 more
wiley   +1 more source

A Non-Uniform User Distribution and its Performance Analysis on K-tier Heterogeneous Cellular Networks Using Stochastic Geometry

, 2019
Chao Li
openalex   +2 more sources

Sharp Diamond Needles for Single‐Photon Emission

Advanced Photonics Research, EarlyView.
We study the morphological evolution of single‐crystal diamond needles oxidized at 650–700 °C. Electron microscopy and photoluminescence reveal temperature‐ and time‐dependent sharpening, length reduction, and surface modifications affecting tip properties.
Mariam Quarshie, Yaraslau Padrez, Priyadharshini Balasubramanian, Elena Filonenko, Rizwan Sultan, Renata Karpicz, Alexander Obraztsov, Fedor Jelezko, Sergei Malykhin, Polina Kuzhir   +9 more
wiley   +1 more source

Spectral Efficiency of Dynamic Coordinated Beamforming: A Stochastic Geometry Approach [PDF]

, 2014
Namyoon Lee, David Morales-Jimenez, Angel Lozano, Robert W. Heath   +3 more
openalex   +1 more source

Identifying Physical Interactions in Contact‐Based Robot Manipulation for Learning from Demonstration

Advanced Robotics Research, EarlyView.
Robots can learn manipulation tasks from human demonstrations. This work proposes a versatile method to identify the physical interactions that occur in a demonstration, such as sequences of different contacts and interactions with mechanical constraints.
Alex Harm Gert‐Jan Overbeek, Herman van der Kooij, Douwe Dresscher, Mark Vlutters   +3 more
wiley   +1 more source

Coverage probability analysis of three uplink power control schemes: Stochastic geometry approach. [PDF]

EURASIP J Wirel Commun Netw, 2018
Herath P, Tellambura C, Krzymień WA.
europepmc   +1 more source