Results 61 to 70 of about 107,009 (307)
Elinvar Materials: Recent Progress and Challenges
Advanced Engineering Materials, EarlyView.Elinvar materials, exhibiting temperature‐invariant elastic modulus, are critical for precision instruments and emerging technologies. This article reviews recent progress in the field, with a focus on the anomalous thermoelastic behavior observed in key material systems.
Wenjie Li, Yang Ren
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Zhejiang dianliDue to the complex structure of hybrid cascaded DC transmission systems， a DC line protection scheme based on boundary transient power direction is proposed to enhance protection adaptability. First， the smoothing reactor serves as the boundary， enabling
WANG Shuzheng +4 more
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Fault classification in power systems using EMD and SVM
Ain Shams Engineering Journal, 2017 In recent years, power quality has become the main concern in power system engineering. Classification of power system faults is the first stage for improving power quality and ensuring the system protection.
N. Ramesh Babu, B. Jagan Mohan
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Protection challenges in future converter dominated power systems [PDF]
, 2015 Converter interfaces, used to connect renewable energy sources, HVDC links and infeeds to the power system, will bring significant changes to the behaviour of power systems in the future, particularly in Great Britain (GB).
Booth, Campbell +5 more
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Dual Channel Control with DC Fault Ride Through for MMC-based, Isolated DC/DC Converter [PDF]
, 2017 This study is sponsored by the Engineering and Physical Sciences Research Council (EPSRC) grant no EP/K006428/1, 2013.D. Jovcic and H. Zhang are with the School of Engineering, University of Aberdeen, AB24 3UE, U.K.
Jovcic, Dragan, Zhang, Huibin
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Advanced Engineering Materials, EarlyView.Herein, environmental scanning electron microscopy (ESEM) is discussed as a powerful extension of conventional SEM for life sciences. By combining high‐resolution imaging with variable pressure and humidity, ESEM allows the analysis of untreated biological materials, supports in situ monitoring of hydration‐driven changes, and advances the functional ...
Jendrian Riedel +6 more
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Advanced Engineering Materials, EarlyView.The study investigates novel semi‐finished products made of unidirectionally arranged hemp or pineapple leaf fiber‐reinforced composites produced from different matrices. The materials are analyzed in terms of their mechanical and interfacial properties and void content.
Nina Graupner +22 more
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Advanced Engineering Materials, EarlyView.It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti +11 more
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Factor affecting characteristic of voltage sag due to fault in the power system [PDF]
, 2008 Faults in the power system are the most common reason for the occurrence of important power quality problem, voltage sag in the system. Due to increasing use of sensitive and sophisticated control in almost all modern devices at the industrial and ...
Patne Nita R., Thakre Krishna L.
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Advanced Engineering Materials, EarlyView.The growing demand for lightweight, nontoxic, and multifunctional gamma shielding materials has intensified efforts to find alternatives to conventional lead and aluminum‐based protectants. In this work, we develop epoxy quartz fabric composites reinforced with cobalt chloride (CoCl2) microparticles, fabricated via hand lay‐up with varying filler ...
Summan Urooge +7 more
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