Results 11 to 20 of about 1,399,039 (262)

Gas-phase detection of oxirene. [PDF]

open access: yesSci Adv, 2023
Oxirenes—highly strained 4π Hückel antiaromatic organics—have been recognized as key reactive intermediates in the Wolff rearrangement and in interstellar environments. Predicting short lifetimes and tendency toward ring opening, oxirenes are one of the most mysterious classes of organic transients, with the isolation of oxirene (
Wang J   +5 more
europepmc   +3 more sources

Quickest sequence phase detection [PDF]

open access: yes2016 IEEE International Symposium on Information Theory (ISIT), 2016
To appear in the IEEE Transactions on Information ...
Lele Wang 0001   +2 more
openaire   +2 more sources

Gas Phase Detection of Benzocyclopropenyl [PDF]

open access: yesThe Journal of Physical Chemistry A, 2015
The gas phase detection of benzocyclopropenyl is reported. In this aromatic resonance stabilized radical, a large angular strain is present due to a three-membered ring annelated to a benzene. The resonant two-color two-photon ionization technique is used to record the D1((2)A2) ← D0((2)B1) electronic transition of this radical after the in situ ...
Maity, Surajit   +2 more
openaire   +4 more sources

Spectral Phase Shift Interferometry for Refractive Index Monitoring in Micro-Capillaries

open access: yesSensors, 2020
In this work, we demonstrate spectral phase-shift interferometry operating in the near-infrared wavelength range for refractive index (RI) monitoring of fluidic samples in micro-capillaries.
Valentina Bello   +2 more
doaj   +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

Pedestrian Detection With Autoregressive Network Phases [PDF]

open access: yes2019 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2019
We present an autoregressive pedestrian detection framework with cascaded phases designed to progressively improve precision. The proposed framework utilizes a novel lightweight stackable decoder-encoder module which uses convolutional re-sampling layers to improve features while maintaining efficient memory and runtime cost.
Garrick Brazil, Xiaoming Liu 0002
openaire   +2 more sources

Pre-ictal phase detection with SVMs [PDF]

open access: yes2014 International Conference on High Performance Computing & Simulation (HPCS), 2014
Over 50 million persons worldwide are affected by epilepsy. Epilepsy is a brain disorder known for sudden, unexpected transitions from normal to pathological behavioral states called epileptic seizures. Epilepsy poses a significant burden to society due to associated healthcare cost to treat and control the unpredictable and spontaneous occurrence of ...
Julián Ramos Cózar   +5 more
openaire   +2 more sources

Self-Adaptation of mHealth Devices: The Case of the Smart Cane Platform

open access: yesProceedings, 2019
Nowadays, more than one billion people are in need of one or more assistive technologies, and this number is expected to increase beyond two billion by 2050.
Inmaculada Ayala   +4 more
doaj   +1 more source

Virtual Frequency Construction-Based Vector Current Control for Grid-Tied Inverter Under Imbalanced Voltage

open access: yesIEEE Access, 2020
This paper proposes a fast phase capture (FPC) scheme and applies it to the control strategy of grid-tied inverters under imbalanced voltage. Firstly, a method for quickly extracting sequence components of power signals is derived through the symmetrical
Wu Binbing   +4 more
doaj   +1 more source

Photonics-Based RF Signal Phase Detector With Wide Operating Frequency Range and High Resolution

open access: yesIEEE Photonics Journal, 2021
A new topology that generates a DC voltage whose value is depending on the phase difference of two input RF signals is presented. It is implemented by the mixer concept.
Hao Chen, Erwin H. W. Chan
doaj   +1 more source

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