Results 151 to 160 of about 5,057 (307)

SKOOTS: Skeleton‐Oriented Object Segmentation for Mitochondria in High‐Resolution Cochlear EM Datasets

open access: yesAdvanced Science, EarlyView.
Skeleton‐oriented object segmentation (SKOOTS) introduces a new strategy for 3D mitochondrial instance segmentation by predicting explicit skeletons rather than relying on boundary cues. This approach enables robust analysis of densely packed organelles in large FIB‐SEM datasets.
Christopher J. Buswinka   +3 more
wiley   +1 more source

Arrival flight efficiency in pre- and post-Covid-19 pandemics. [PDF]

open access: yesJ Air Transp Manag, 2023
Lemetti A, Hardell H, Polishchuk T.
europepmc   +1 more source

Comparison of model and flight test data for an augmented jet flap STOL research aircraft [PDF]

open access: yes
Aerodynamic design data for the Augmented Jet Flap STOL Research Aircraft or commonly known as the Augmentor-Wing Jet-STOL Research Aircraft was based on results of tests carried out on a large scale research model in the NASA Ames 40- by 80-Foot Wind ...
Cook, W. L., Whittley, D. C.
core   +1 more source

Encoding Cumulation to Learn Perturbative Nonlinear Oscillatory Dynamics

open access: yesAdvanced Science, EarlyView.
Weak nonlinearities critically shape the long term behavior of oscillatory systems but are difficult to identify from data. A data‐driven framework is introduced to infer governing equations of weakly nonlinear oscillators from sparse and noisy observations.
Teng Ma   +5 more
wiley   +1 more source

Environmental inefficiencies for arrival flights at European airports. [PDF]

open access: yesPLoS One, 2023
Olive X, Sun J, Basora L, Spinielli E.
europepmc   +1 more source

Static internal performance of a single-engine onaxisymmetric-nozzle vaned-thrust-reverser design with thrust modulation capabilities [PDF]

open access: yes
An investigation has been conducted at wind-off conditions in the stati-test facility of the Langley 16-Foot Transonic Tunnel. The tests were conducted on a single-engine reverser configuration with partial and full reverse-thrust modulation capabilities.
Burley, J. R., II, Leavitt, L. D.
core   +1 more source

A NeuroD1 AAV‐Based Gene Therapy for Functional Brain Repair in Alzheimer's Disease‐Like Non‐Human Primate Model

open access: yesAdvanced Science, EarlyView.
This study tests NeuroD1 AAV‐based gene therapy in a non‐human primate Alzheimer's disease model. The therapy prevents neuronal damage, inhibits hippocampal atrophy, and reduces neuroinflammation. It also repairs vascular and blood‐brain barrier damage, restores cerebrospinal fluid biomarkers, enhances hippocampal glucose metabolism, and improves ...
Zhouquan Jiang   +21 more
wiley   +1 more source

Thrust Vector Control, Heat Transfer Modeling

open access: yes, 1986
Contractor Report The report presents heat transfer modeling of Thrust Vector control systems using the PHOENICS computer code. Simple two-dimensional wedged blunt bodies have been examined in supersonic cold flow, for both laminar and turbulent flow cases.
openaire   +3 more sources

Static internal performance of ventral and rear nozzle concepts for short-takeoff and vertical-landing aircraft [PDF]

open access: yes
The internal performance of two exhaust system concepts applicable to single-engine short-take-off and vertical-landing tactical fighter configurations was investigated.
Carson, George T., Jr., Re, Richard J.
core   +1 more source

Systematically Engineering for Efficient Production of 3‐Methyl‐1‐Butanol in Escherichia coli

open access: yesAdvanced Science, EarlyView.
An integrated metabolic engineering strategy was established for high‐level 3‐methyl‐1‐butanol biosynthesis in Escherichia coli. Molecular dynamics‐guided semi‐rational engineering of dihydroxyacid dehydratase uncovered and relieved key catalytic bottlenecks, while adaptive laboratory evolution enhanced strain robustness.
Nanfei Geng   +6 more
wiley   +1 more source

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