Results 131 to 140 of about 504,263 (307)
, 2012 Integration of renewable resources such as remote solar or wind farms and electricpower trading between neighbouring countries lead to new requirements on the development of thetransmission grids. Since AC grid expansion is limited by e.g.
Fidai, Muhammad Hassan
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The Alternate Arm Converter: A New Hybrid Multilevel Converter With DC-Fault Blocking Capability
, 2013 This paper explains the working principles, supported by simulation results, of a new converter topology intended for HVDC applications, called the alternate arm converter (AAC).
Critchley, R +6 more
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A Comprehensive Review of Waste‐Derived Materials for Solar Still Performance Enhancement
Advanced Materials Interfaces, EarlyView.ABSTRACT Solar desalination reduces energy use and produces freshwater sustainably, but its productivity is limited and cannot meet rising demand. Thus, solar desalination system improvements are sought to boost water productivity. Waste materials are abundantly available and burden the environment, making them low‐cost enhancers for solar desalination
A. S. Abdullah +6 more
wiley +1 more source
Beam Diffraction by a Planar Grid Structure at 93 GHz [PDF]
, 1991 The idea of using diode grids for electronic beam steering was introduced by Lam et al [l]. As shown in Figure 1, when an incident beam reflects off the diode grid, the direction of the reflected wave can be controlled by progressively varying the ...
Hacker, Jonathan B. +3 more
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Optical Manipulation of Multiferroic Phases in BiFeO3 Thin Films
Advanced Materials Interfaces, EarlyView.At the strain‐driven morphotropic phase boundary, optical control over the multiferroic rhombohedral and tetragonal phase mixture is demonstrated using above‐bandgap light illumination. The photoinduced charge carriers modify the electrostatic environment and induce the conversion into a single tetragonal phase.
Bixin Yan +7 more
wiley +1 more source
Stability analysis of grid-following converter considering DC side dynamics
电力工程技术DC side dynamics are ignored in most of the research on grid-connected converter, which is dealt as a constant voltage source. In this case, the analysis result of small-signal stability is affected to some extent.
ZHAO Yujing +3 more
doaj +1 more source
Advanced Materials Technologies, EarlyView.This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane +4 more
wiley +1 more source
International Journal of Electrical Power & Energy SystemsThe operation of grid-tied single-phase inverters generates oscillations in its DC link voltage. If only active/reactive power is controlled by the inverter, this oscillation is at twice the grid frequency. In situations where the inverter output current
Guilherme M. Pelz +3 more
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Quasi‐Random Nanostructured Substrates for Enhancing Light Outcoupling in OLEDs
Advanced Optical Materials, EarlyView.ABSTRACT Organic light–emitting diodes (OLEDs) suffer from low light outcoupling efficiency, with much of the generated light trapped within the device. To address this issue, we present a scalable, maskless, polymer‐free strategy for fabricating quasi‐random external nanowire (ENW) and internal nanocorrugation (INC) structures directly on glass ...
Mehdi Zarei +8 more
wiley +1 more source
DC Nano-grid System in the Future Sustainable Building
Kongzhi Yu Xinxi Jishu, 2011 In recent years, in order to solve the problems generated by renewable energy distributed generation, some foreign scholars have proposed “DC Nano-grid” which can combine generation, storage, load and control system.
钱照明, 高明智, 张宇儒, 陈敏
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