Results 51 to 60 of about 4,455,887 (219)
Sub-bottom high resolution sonar utilizing non-linear acoustic pulse self-demodulation [PDF]
, 1982 An experiment involving the design and construction of a prototype sub-bottom high resolution sonar system utilizing nonlinear pulse self- demodulation and suitable for deep water use is described.
Seemann, Axel Harry +2 more
core +2 more sources
Journal of the European Optical Society-Rapid Publications, 2020 An optical 32QAM-OFDM-PON system with different numbers of sub-carriers using discrete multitone (DMT) modulation and demodulation is designed and demonstrated by experiment.
Yufeng Shao +9 more
doaj +1 more source
From Sensing Mechanisms to System Co‐Design: Graphene‐Based Sensors and Readout Circuits
Advanced Science, EarlyView.This review establishes a unified PS–EQ–RF framework linking graphene sensing mechanisms, native electrical outputs, and output‐specific readout circuits. Voltage‐, current‐, resistance‐, and capacitance‐type sensing systems are systematically classified to guide architecture selection, low‐noise design, system co‐design, and practical integration ...
Jinduo Zhang +5 more
wiley +1 more source
Future Internet, 2023 For next generation wireless communication systems, high throughput, low latency, and large user accommodation are popular and important required characteristics.
Wei-Shun Liao +4 more
doaj +1 more source
Research on Diaphragm Pump Fault Diagnosis Method Based on Res‐DCB‐Net
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT Nonstationary pressure pulsation signals of diaphragm pumps contain strong background noise and coupled characteristics. This makes it challenging to extract incipient fault features and to decouple faults with similar physical mechanisms. To address these limitations, this paper proposes a spatiotemporal fault diagnosis model named Res‐DCB ...
Jiahui Wang +7 more
wiley +1 more source
水下无人系统学报Aiming at the problem that the self-interference cancellation performance is degraded due to the phase mismatch between the transmitting and receiving samples in the in-band full-duplex underwater acoustic communication, this paper proposed a method to ...
Songwen WU +5 more
doaj +1 more source
Lipid droplet profiling during neutrophil differentiation by stimulated Raman scattering microscopy
Biotechnology Progress, EarlyView.Abstract Lipid droplets (LDs) are dynamic organelles that serve as metabolic hubs and emerging regulators of immune cell fate. Although LDs have been implicated in immune regulation, how LD metabolism is remodeled during neutrophil differentiation and how stage‐specific LD dynamics shape mature neutrophil function remain poorly defined.
Ting‐Jung Sung +5 more
wiley +1 more source
Sensors, 2022 An all-fiber distributed airflow sensing method based on a differential pulse-width pair Brillouin optical time domain analysis (DPP-BOTDA) and a self-heated high-attenuation fiber (HAF) is proposed and demonstrated.
Hongying Zhang +3 more
doaj +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.This work reveals a “Photovoltaic‐Capacitance” coupling mechanism in stacked Ga2O3/ZnO devices, defining the ZnO/graphene interface as a novel Photovoltaic Dynamic‐Capacitor (PDC). The wavelength‐selective bipolar response enables a physical layer secure communication protocol based on ternary optical logic (“1,” “0,” “−1”).
Songqi Zhao +6 more
wiley +1 more source
Superdirectional Parametric Array Loudspeaker
Revista Elektrón, 2019 In this work, a directional loudspeaker, also known as a parametric array loudspeaker (PAL), is designed and constructed. The operation is based on the phenomenon called self-demodulation that happens when high-frequency beams interact in a viscous ...
Axel Montes de Oca +3 more
doaj