Results 131 to 140 of about 70,485 (278)

Triple-Frequency GPS Precise Point Positioning Ambiguity Resolution Using Dual-Frequency Based IGS Precise Clock Products

open access: yesInternational Journal of Aerospace Engineering, 2017
With the availability of the third civil signal in the Global Positioning System, triple-frequency Precise Point Positioning ambiguity resolution methods have drawn increasing attention due to significantly reduced convergence time.
Fei Liu, Yang Gao
doaj   +1 more source

Low Density Lattice Codes

open access: yes, 2007
Low density lattice codes (LDLC) are novel lattice codes that can be decoded efficiently and approach the capacity of the additive white Gaussian noise (AWGN) channel.
Meir Feder   +3 more
core   +3 more sources

Utility of local capillary supply indices: Insights from computational image‐based modelling

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Local capillary distribution and fibre geometry influence oxygen availability in skeletal muscle. Image‐based modelling of tissue PO2${{P}_{{{{\mathrm{O}}}_2}}}$ shows that area‐based measures of capillary supply – the local capillary density (LCDi) and local maximum diffusion distance (Dmax,i) – most accurately represent the ...
Abdullah A. Al‐Shammari   +6 more
wiley   +1 more source

Large Language Models for Explainable Medical Text Summarization: A Systematic Literature Review

open access: yesWIREs Data Mining and Knowledge Discovery, Volume 16, Issue 2, June 2026.
The graphical abstract highlights the three key aspects addressed in this review: the technical background of medical text summarization methods relevant to clinical decision support; the LLM background in providing context for its diagnosis and clinical significance; and clinical decision support with summarization and explainability in patient care ...
Aleka Melese Ayalew   +3 more
wiley   +1 more source

Speciation, Structural Refinement, and Distribution of Ti Sites in Titanium Silicalite‐1 From 47/49Ti NMR Crystallography at 28.2 Tesla

open access: yesAngewandte Chemie, Volume 138, Issue 15, 6 April 2026.
Titanium silicalite‐1 (TS‐1), used in industrial selective oxidation processes, depends on specific, yet still unresolved Ti sites, dispersed within the framework of an MFI‐zeolite. Applying high field (28.2 T) 47/49Ti NMR and 17O NMR spectroscopy for an array of TS‐1 catalysts enables the development of an NMR crystallography protocol and the ...
Christoph J. Kaul   +14 more
wiley   +2 more sources

Performance of the all-digital data-transition tracking loop in the advanced receiver [PDF]

open access: yes
The performance of the all-digital data-transition tracking loop (DTTL) with coherent or noncoherent sampling is described. The effects of few samples per symbol and of noncommensurate sampling rates and symbol rates are addressed and analyzed.
Cheng, U., Hinedi, S.
core   +1 more source

Parental and Peer Relationships and Their Impact on Symptom Severity in Adolescent Patients With Anorexia Nervosa

open access: yesEuropean Eating Disorders Review, Volume 34, Issue 3, Page 845-857, May 2026.
ABSTRACT Objective Perceived parental relationship characteristics, such as maternal overprotection, rejection or neglect, and peer victimisation, are suggested to be more common in patients with anorexia nervosa (AN) than in healthy controls. This study compares parental and peer relationships in adolescent patients with AN to those in a clinical ...
Armita Tschitsaz   +8 more
wiley   +1 more source

Rapid Free‐Breathing and Automated 2D Shimming of the Lung at 3T

open access: yesMagnetic Resonance in Medicine, Volume 95, Issue 5, Page 2737-2745, May 2026.
ABSTRACT Purpose To develop and validate a rapid, fully automated method for shimming of the lung. Methods For field mapping of the lung, a custom 2D RF spoiled gradient echo sequence was used offering sub‐millisecond echo times. At 3T, four echo‐shifted coronal images were acquired with a minimum TE of 0.57 ms and an inter‐echo spacing of 0.1 ms ...
Pavlos Panos   +2 more
wiley   +1 more source

Precise Point Positioning Integer Ambiguity Resolution with Decoupled Clocks

open access: yes, 2012
Precise Point Positioning (PPP) integer ambiguity resolution has been a challenging topic during the past five years. So far, three PPP integer ambiguity resolution methods – the singledifference between satellites method, the decoupled clock model and the integer phase clock model – have been developed. By using integer ambiguity resolution in PPP, cm-
openaire   +2 more sources

copick: An open dataset interface and toolkit for collaborative annotation and analysis of cryo‐electron tomography data

open access: yesProtein Science, Volume 35, Issue 5, May 2026.
Abstract Cryo‐electron tomography (cryoET) enables visualization of macromolecular complexes within intact cellular environments. Continued improvements in instrumentation, sample preparation, and data‐processing pipelines have increased both the scale and the complexity of cryoET datasets, making manual analysis challenging.
Utz Heinrich Ermel   +9 more
wiley   +1 more source

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