Results 71 to 80 of about 316,191 (283)

Long‐Tea‐CLIP: An Expert‐Level Multimodal AI Framework for Fine‐Grained Green Tea Grading Across Five Sensory Dimensions

open access: yesAdvanced Science, EarlyView.
Long‐Tea‐CLIP (Contrastive Language‐Image Pre‐training) presents a multimodal AI framework that integrates visual, metabolomic, and sensory knowledge to grade green tea across appearance, soup color, aroma, taste, and infused leaf. By combining expert‐guided modeling with CLIP‐supervised learning, the system delivers fine‐grained quality evaluation and
Yanqun Xu   +9 more
wiley   +1 more source

Embedding a Rydberg Atom-Based Sensor Into an Antenna for Phase and Amplitude Detection of Radio-Frequency Fields and Modulated Signals

open access: yesIEEE Access, 2019
We demonstrate a Rydberg atom-based sensor embedded in a parallel-plate waveguide (PPWG) for amplitude and phase detection of a radio-frequency (RF) electric field. This embedded atomic sensor is also capable of receiving modulated communications signals.
Matthew T. Simons   +4 more
doaj   +1 more source

Engineering New‐to‐Nature Biological Pathways for β,γ‐Alkanediol Synthesis

open access: yesAdvanced Science, EarlyView.
β,γ‐Alkanediols are value‐added chemicals to be used as functional solvents, biofuels, and cosmetic components. This work demonstrates a carboligation‐mediated approach for synthesis of linear chain β,γ‐alkanediols in Escherichia coli, namely, hexane‐2,3‐diol (2,3‐HDO) and pentane‐2,3‐diol (2,3‐PDO). The engineered E. coli cells produce 152.2 mm (17.98
Haofeng Chen   +6 more
wiley   +1 more source

Inconclusive decisions and error rates in forensic science

open access: yesForensic Science International: Synergy
In recent years, there has been discussion and controversy relating to the treatment of inconclusive decisions in forensic feature comparison disciplines when considering the reliability of examination methods and results.
H. Swofford   +8 more
doaj   +1 more source

Collective atomic scattering and motional effects in a dense coherent medium

open access: yesNature Communications, 2016
Light scattering from a dense coherent medium is determined by the interplay of dispersive and radiative dipole–dipole interactions. Here, the authors control the motional effects that obscure the coherence of scattered light and study collective ...
S. L. Bromley   +11 more
doaj   +1 more source

Characterization of Power-to-Phase Conversion in High-Speed P-I-N Photodiodes

open access: yesIEEE Photonics Journal, 2011
Fluctuations of the optical power incident on a photodiode can be converted into phase fluctuations of the resulting electronic signal due to nonlinear saturation in the semiconductor.
J. Taylor   +6 more
doaj   +1 more source

Initial NIST AC QHR measurements

open access: yesJournal of Research of the National Institute of Standards and Technology, 2004
We demonstrate that dc quantized Hall resistance (dc QHR) guideline properties and dc and ac QHR values can be measured without changing sample probe lead connections at the QHR device, and report ac QHR values that converge to the dc QHR value when using four-terminal-pair ac QHR measurements.
Cage, M. E., Shields, S. H., Jeffery, A.
openaire   +2 more sources

The Obama Administration’s Proposal to Establish a National Network for Manufacturing Innovation [PDF]

open access: yes, 2012
[Excerpt] In his FY2013 budget, President Obama proposed the creation of a National Network for Manufacturing Innovation (NNMI) to help accelerate innovation by investing in industrially relevant manufacturing technologies with broad applications, and to
Sargent, John F, Jr.
core   +4 more sources

Oil‐Coated Nanoplastics Induce Rapid Membrane Disruption and Severe Intestinal Injury

open access: yesAdvanced Science, EarlyView.
Oil‐rich food contact dramatically amplifies MNP release from plastic takeout containers, producing oil‐coated nanoplastics with altered surface properties and rapid membrane‐disruptive effects. These particles cause severe intestinal barrier damage and immune dysfunction in mice, and risk modeling suggests that long‐term gastrointestinal burdens may ...
Ruwen Xie   +17 more
wiley   +1 more source

A mathematical framework to correct for compositionality in microbiome data sets

open access: yesApplied and Environmental Microbiology
The increasing use of metagenomic sequencing (MGS) for microbiome analysis has significantly advanced our understanding of microbial communities and their roles in various biological processes, including human health, environmental cycling, and disease ...
Samuel P. Forry   +5 more
doaj   +1 more source

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