Results 51 to 60 of about 1,479,330 (310)
Nano‐Patterned CuO Nanowire Nanogap Hydrogen Gas Sensor with Voids
Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.Sub‐5‐ppb hydrogen (H2) detection and sub‐10‐s response and recovery times are achieved based on nano‐patterned polycrystalline CuO nanowires nanogap gas sensors with voids using electron‐beam lithography and unique annealing processes. Pre‐H2 annealing, void‐generating oxidation, and downscaled nanogap electrodes are key to improving the sensing ...
Muqing Zhao +4 more
wiley +1 more source
Waveforms for the Massive MIMO Downlink: Amplifier Efficiency, Distortion and Performance
, 2015 In massive MIMO, most precoders result in downlink signals that suffer from high PAR, independently of modulation order and whether single-carrier or OFDM transmission is used. The high PAR lowers the power efficiency of the base station amplifiers.
Eriksson, Thomas +2 more
core +2 more sources
Advanced Functional Materials, EarlyView.A wideband tunable electrochromic device with dynamic thermal emissivity control is demonstrated. The system enables adaptive heat regulation via electrochemically modulated silver deposition, achieving efficient cooling and heating states. The flexible design ensures mechanical robustness under bending conditions, making it promising for portable and ...
Jiawei Liang +10 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song +4 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Unravelling charge transport mechanisms in graphene nanosheet networks: by combining temperature‐dependent conductivity measurements with a Random Resistor Network model, this study identifies a transition from hopping‐dominated conduction to a band‐like transport mechanism.
Alessandro Grillo +9 more
wiley +1 more source
A New Deep Learning Methodology for Alarm Supervision in Marine Power Stations
SensorsMarine engineering officers operate and maintain the ship’s machinery during normal navigation. Most accidents on board are related to human factors which, at the same time, are associated with the workload of the crew members and the working environment.
José A. Orosa +3 more
doaj +1 more source
Nickel-hydrogen batteries from Intelsat 5 to space station [PDF]
, 1986 The heritage of the Ni-H2 technology that makes the space station application feasible is discussed. It also describes a design for a potential space station Ni-H2 battery system.
Applewhite, A. Z., Vanommering, G.
core +1 more source
Advanced Functional Materials, EarlyView.HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan +9 more
wiley +1 more source
Energies, 2020 The main purpose of this paper is to quantitatively analyze the sensitivity of operating parameters of the system to the thermodynamic performance of an oxyfuel combustion (OC) power generation system.
Zhiyu Zhang +3 more
doaj +1 more source
First ATS launch set, December 6 [PDF]
, 1966 Applications Technology Satellite /ATS/ LAUNCHING, communications, power supply, control, and ground station ...
core +1 more source