Results 41 to 50 of about 1,019,732 (289)

Game Theory Based Delta-OMA Scheme for VLC Networks

open access: yesIEEE Access, 2023
This paper proposes a delta-orthogonal multiple access (D-OMA) scheme-based visible light communications (VLC) network to enhance spectral efficiency and massive connectivity in the indoor environment.
Priyashantha Tennakoon   +2 more
doaj   +1 more source

Fuzzy Fitness Distance Balance Gradient-Based Optimization Algorithm (fFDBGBO): An Application to Design and Performance Optimization of PMSM

open access: yesIEEE Access
The exceptional properties of Permanent Magnet Synchronous Motors (PMSMs), including their small construction, high power-torque density, and high efficiency, make them one of the most popular electrical machines. However, the motor structure needs to be
Hasan Uzel   +3 more
doaj   +1 more source

Magnetic phases near the Van Hove singularity in s- and d-band Hubbard model

open access: yes, 1997
We investigate the magnetic instabilities of the nondegenerate (s-band) and a degenerate (d-band) Hubbard model in two dimensions using many-body effects due to the particle-particle diagrams and Hund's rule local correlations.
A. M. Oleś   +38 more
core   +1 more source

W-Band and D-Band Traveling-Wave Tube Circuits Fabricated by 3D Printing

open access: yesIEEE Access, 2019
We present the fabrication and electromagnetic testing of serpentine waveguide traveling-wave tube amplifier circuits operating in the W-band (75-110 GHz) and D-band (110-170 GHz) frequency ranges.
Alan M. Cook   +2 more
doaj   +1 more source

Potential, core-level and d band shifts at transition metal surfaces

open access: yes, 1996
We have extended the validity of the correlation between the surface 3d-core-level shift (SCLS) and the surface d band shift (SDBS) to the entire 4d transition metal series and to the neighboring elements Sr and Ag via accurate first-principles ...
A. Borg   +34 more
core   +1 more source

Two Faces of NOTCH1 in Childhood Lymphoblastic T‐Cell Neoplasia: Prognostic Divergence of Mutational and Structural Aberrations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT In pediatric patients, T‐cell lymphoblastic lymphoma (T‐LBL) survival exceeds 80%. Relapse remains associated with limited curative options. Frontline treatment is largely extrapolated from T‐cell acute lymphoblastic leukemia (T‐ALL) treatment, reflecting the ongoing debate, whether both entities represent distinct diseases or variants within ...
Marie C. Heider   +4 more
wiley   +1 more source

Ethnic Differences in the Association Between SOD2 rs4880 and Hepatotoxicity in Pediatric Acute Lymphoblastic Leukemia: A Report From the REDIAL Consortium

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Treatment‐associated hepatotoxicity (TAH) is a common complication of pediatric acute lymphoblastic leukemia (ALL) treatment, but genetic risk factors remain poorly understood. We evaluated the SOD2 rs4880 variant in 544 children with ALL at Texas Children's Hospital. After adjusting for demographic and clinical covariates, the rs4880 C allele
Emily J. Mason   +14 more
wiley   +1 more source

Ab initio study of element segregation and oxygen adsorption on PtPd and CoCr binary alloy surfaces

open access: yes, 2008
The segregation behavior of the bimetallic alloys PtPd and CoCr in the case of bare surfaces and in the presence of an oxygen ad-layer has been studied by means of first-principles modeling based on density-functional theory (DFT).
Aldén   +56 more
core   +2 more sources

Elimination of D-band in Raman spectra of double-wall carbon nanotubes by oxidation [PDF]

open access: yes, 2005
In this Letter, we present an in situ Raman spectroscopy study of oxidation-induced changes in the structure and composition of double-wall carbon nanotubes (DWCNTs).
Flahaut, Emmanuel   +3 more
core   +2 more sources

Therapeutic Apheresis for Intravenous Methylprednisolone‐Refractory Neuromyelitis Optica Spectrum Disorder: Clinical and Radiological Outcomes in a Single‐Center Case Series

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Neuromyelitis optica spectrum disorder (NMOSD) is a relapsing autoimmune disease of the central nervous system. High‐dose intravenous methylprednisolone (IVMP) is the standard first‐line therapy for acute attacks, although some patients remain refractory.
Wataru Horiguchi   +5 more
wiley   +1 more source

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