Results 81 to 90 of about 494,648 (339)
Advanced Engineering Materials, EarlyView.Cr0.9Si0.1 protective coatings are developed to enhance the thermal‐shock and oxidation resistance of Mg2Si0.89(Sn0.1,Sb0.01) thermoelectric (TE) materials. The coating forms a dense and adherent barrier that suppresses oxygen diffusion and mitigates mechanical degradation during cyclic oxidation, demonstrating its potential to improve the long‐term ...
Mikdat Gurtaran +3 more
wiley +1 more source
The NATO III 5 MHz Distribution System [PDF]
A high performance 5 MHz distribution system is described which has extremely low phase noise and jitter characteristics and provides multiple buffered outputs. The system is completely redundant with automatic switchover and is self-testing. Since the 5
Bloch, M., Vulcan, A.
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An effective AMS Top-Down Methodology Applied to the Design of a Mixed-SignalUWB System-on-Chip [PDF]
, 2007 The design of Ultra Wideband (UWB) mixed-signal SoC for localization applications in wireless personal area networks is currently investigated by several researchers. The complexity of the design claims for effective top-down methodologies.
Casu, Mario Roberto +3 more
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Advanced Functional Materials, EarlyView.Graded refractive index (GRI) structures are prepared from the layer‐by‐layer spray coating of the mesoporous SiO2 nanoparticles, showing high solar transparency and thermal emissivity. Under outdoor conditions, after 50 days, the GRI‐coated photovoltaics show on average 6.65 ± 1.48 °C lower than that of the non‐coated references, maintaining 80.9 ± 8 ...
Heesuk Jung +14 more
wiley +1 more source
A Compact Single-Layer Balanced Phase Shifter With Wide Bandwidth and Uniform Reference Line
IEEE Access, 2020 A single-layer balanced phase shifter with uniform reference line is proposed to achieve the advantages of compact size and wide bandwidth compared with state-of-art single-layer balanced phase shifters.
Wei Zhang, Kai Xu, Jin Shi, Zhidan Shen
doaj +1 more source
Concepts and methods in optimization of integrated LC VCOs [PDF]
, 2001 Underlying physical mechanisms controlling the noise properties of oscillators are studied. This treatment shows the importance of inductance selection for oscillator noise optimization. A design strategy centered around an inductance selection scheme is
Hajimiri, Ali, Ham, Donhee
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Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.A high‐performance n‐type element for quasi‐solid‐state thermocells has been introduced, outperforming conventional p‐type elements and showcasing the potential to harness body heat as an energy source or power embedded sensors. This advance significantly contributes to waste thermal energy harvesting and wearable technology, paving the way for self ...
Gilyong Shin +10 more
wiley +1 more source
A New Method of Transformer Short-Circuit Impedance Regulation Based on Magnetic Shunts
EnergiesShort-circuit impedance is an important economic and technical index to test the cost, efficiency and operation safety of transformers. Increasing the short-circuit impedance of the transformer can reduce the influence of the transformer fault current on
Zhijun Ye, Hao Jia, Wei Cai, Wenhui Zeng
doaj +1 more source
Journal of Harbin University of Science and Technology, 2018 In order to study the generator rotor slot wedge eddy current loss under different conditions . The 1407MVA turbo generator at half speed is researched as an example. Mathematical model is established in 2D electromagnetic field.
GE Bao-jun +5 more
doaj +1 more source
PWM Inverter for Electric Drive Train Application [PDF]
, 1999 Controlling AC power load using DC supply requires complex design and circuit. Basically the controlling system comprises of low power control unit, inverter and the load.
Abas, Mohd Amir
core