Results 61 to 70 of about 35,470,184 (340)
Nature CommunicationsResidential homes and light commercial buildings usually require substantial heat and electricity simultaneously. A combined heat and power system enables more efficient and environmentally friendly energy usage than that achieved when heat and ...
Zhiming Gao +11 more
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Operational concepts of HVDC in the context of security assessment in the German transmission grid
Global Energy Interconnection, 2019 Because of the realization of HVDC connections parallel to the synchronous grid in Germany, operational concepts become more important in the context of system security aspects.
Annika Klettke +2 more
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A semantic analysis-driven customer requirements mining method for product conceptual design
Scientific Reports, 2022 Precise customer requirements acquisition is the primary stage of product conceptual design, which plays a decisive role in product quality and innovation.
Xuan-Yu Wu +5 more
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Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
Noise-Adaptive SOGI–HOSM Observer for Sensorless Speed Control of Induction Machines
Journal of Electrical and Computer EngineeringThis study addresses the limitations of traditional sliding-mode observers in sensorless induction motor control under complex, non-Gaussian noise profiles.
Kobena Badu Enyam +4 more
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Novel ZVS S-TCM Modulation of Three-Phase AC/DC Converters
IEEE Open Journal of Power Electronics, 2020 For three-phase AC-DC power conversion, the widely-used continuous current mode (CCM) modulation scheme results in relatively high semiconductor losses from hard-switching each device during half of the mains cycle.
Michael Haider +7 more
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FEBS Letters, EarlyView.Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi +5 more
wiley +1 more source
Monitoring of power factor for induction machines using estimation techniques [PDF]
, 2015 Power factor is a significant element in power systems which is defined as the angle difference between voltages and currents that produces power fluctuation between sources and loads.
Abbod, M, Khodapanah, M, Zobaa, AF
core +1 more source
Organoids in pediatric cancer research
FEBS Letters, EarlyView.Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley +1 more source
Chinese Journal of Mechanical Engineering, 2022 As a type of hydraulic rotary actuator, a helical hydraulic rotary actuator exhibits a large angle, high torque, and compact structure; hence, it has been widely used in various fields. However, its core technology is proprietary to several companies and
Kun Zhang +7 more
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