Results 91 to 100 of about 1,046,206 (327)

A Novel Method for Improving Fairness over Multiaccess Channels

open access: yesEURASIP Journal on Wireless Communications and Networking, 2010
It is known that the orthogonal multiple access (OMA) guarantees for homogeneous networks, where all users have almost the same received power, a higher degree of fairness (in rate) than that provided by successive interference cancellation (SIC).
Razavi SeyedAlireza   +1 more
doaj  

Chiral Phase Change Nanomaterials

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow   +11 more
wiley   +1 more source

Mixed-mode partition theories for one-dimensional fracture [PDF]

open access: yes, 2012
Many practical cases of fracture can be considered as one-dimensional, that is, propagating in one dimension and characterised by opening (mode I) and shearing (mode II) action only with no tearing (mode III) action.
Christopher M. Harvey (7119290)
core  

Mixed Mode Partition in one Dimensional Fractures [PDF]

open access: yes, 2011
Taking a double cantilever beam (DCB) as a representative of one dimensional fracture, a unique pair of pure fracture modes I and II are successfully found in the absence of axial forces, which are orthogonal to each other with respect to the coefficient
Christopher Harvey (1256223)   +3 more
core   +1 more source

Blood Biomarkers and Surface‐Enhanced Raman Spectroscopy for Gout: A Comprehensive Review

open access: yesAdvanced Functional Materials, EarlyView.
Schematic illustrating gout disease progression from asymptomatic hyperuricemia to chronic tophaceous disease, highlighting the limitations of conventional imaging and biochemical diagnostics and the potential of engineered SERS platforms for ultrasensitive blood‐based detection of urate‐related biomarkers across disease stages, with the color gradient
Isuri Perera   +6 more
wiley   +1 more source

Orthogonal Decomposition and Packing of Complete Graphs

open access: yes, 1999
An H-decomposition of a graph G is a partition of the edge-set of G into subsets, where each subset induces a copy of the graph H. A k-orthogonal H-decomposition of a graph G is a set of k H-decompositions of G, such that any two copies of H in distinct ...
Caro, Yair   +3 more
core   +1 more source

Twin Crystal Moiré Metasurfaces for Crossing Flat‐Band Transport

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces twin crystal moiré metasurfaces, breaking in‐plane symmetry to enable reconfigurable acoustic wave manipulation. By adjusting the twin angle and interlayer twist angle, various combinations of hyperbolic, flat bands, and elliptic states can be synthesized in the system.
Shida Fan   +9 more
wiley   +1 more source

Exploring Novel Quantum Embedding Methods with a Non-orthogonal Decomposition of Slater Determinants

open access: yes
The Schmidt decomposition of quantum many-body states, which is the basis of many powerful quantum many-body techniques, relies on a partition of the whole system in terms of orthogonal local basis functions.
Yuhang , Ai, Hong , Jiang
core   +1 more source

2-D DOA Estimation via Matrix Partition and Stacking Technique

open access: yesEURASIP Journal on Advances in Signal Processing, 2009
A novel approach is proposed for the efficient estimation of the two-dimensional (2-D) direction-of-arrival (DOA) of signals impinging on two orthogonal uniform linear arrays (ULAs).
Ping Wei, Jian-Feng Gu, Nan-Jun Li
doaj   +1 more source

Multi-Class Classification Using Improved Mahalanobis-Taguchi System Based on Binary Tree and Its Application [PDF]

open access: yesHangkong bingqi
Aiming at the inadequacy of Mahalanobis-Taguchi System(MTS), an improved MTS optimization model(MTSO) is proposed. The core idea is that a number of optimization objectives are proposed based on the purpose and characteristics of the data classification ...
Niu Junlei
doaj   +1 more source

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