Results 1 to 10 of about 204,662 (249)
Strong particle-hole asymmetry of charge instabilities in doped Mott insulators [PDF]
We study possible charge instabilities in doped Mott insulators by employing the two-dimensional t - J model with a positive value of the next nearest-neighbor hopping integral $t^{\prime} $ on a square lattice, which is applicable to electron-doped ...
Matías Bejas +2 more
doaj +4 more sources
SQUARE-WAVE FREQUENCY MODULATION IN MICROWAVE SPECTROSCOPY [PDF]
Subject and Purpose. The frequency modulation (FM)combined with lock-in detection, the technique which is used in microwave spectroscopy for enhancing the sensitivity of measurements, as well as the effects due to standing wavesinthe measuring absorption
E. A. Alekseev +2 more
doaj +1 more source
Generative adversarial networks-enhanced quasi-square wave modulated photoacoustic spectroscopy: A highly sensitive NH3 detection method under strong background noise [PDF]
We present a photoacoustic spectroscopy reconstruction generative adversarial network (PASR-GAN), which boosts the NH3 detection performance of the photoacoustic spectroscopy sensor through collaborative optimization of the light modulation mode ...
Yanfeng Li +8 more
doaj +2 more sources
A novel modulation method for flexible multi-state switches with shared modules
As a new type of power electronic device to replace traditional mechanical switches, the soft open point (SOP) has the advantages of fast response speed and controllable power flow.
LI Zheng +3 more
doaj +1 more source
We study here the spectral characteristics of square-wave-modulated type II long-period fiber gratings (LPFGs) inscribed by a femtosecond laser.
Xiaofan Zhao +5 more
doaj +1 more source
Synchronized audio-visual transients drive efficient visual search for motion-in-depth. [PDF]
In natural audio-visual environments, a change in depth is usually correlated with a change in loudness. In the present study, we investigated whether correlating changes in disparity and loudness would provide a functional advantage in binding disparity
Marina Zannoli +3 more
doaj +1 more source
Direct-Sequence-CDMA in Highly Sensitive Indirect Time-of-Flight Distance Sensor
This work presents the application of Direct-Sequence Code-Division-Multiple-Access (DS-CDMA) to tackle the primary problem of simultaneous multi-access of a shared light channel in an indirect Time-of-Flight measurement system based on on-off-keyed (OOK)
Fabio Schartmuller +4 more
doaj +1 more source
An experimental study of intermodulation effects in an atomic fountain frequency standard [PDF]
The short-term stability of passive atomic frequency standards, especially in pulsed operation, is often limited by local oscillator noise via intermodulation effects.
G. Dudle +7 more
core +4 more sources
Measurement accuracy is essential for the all-fiber optic current sensor. Angle errors of axis alignment in the fusion processing affect the measurement accuracy with different modulation and demodulation methods.
Jianhua Wu +3 more
doaj +1 more source
Compared with AC distribution networks, DC distribution networks reduce the utilisation of power converters, power loss, and construction cost. In DC distribution network, the high-frequency modular multilevel DC converter (MDCC), which connects the low ...
Yu Wang +4 more
doaj +1 more source

