Results 241 to 250 of about 7,202 (306)

Research on the Mechanism and Characteristics of Gel-Microbial Composite Oil Displacement in Hypertonic Heavy Oil Reservoirs. [PDF]

Gels
Liu B, Li X, Wang H, Liu X.
europepmc   +1 more source

Current Perspectives on the Contralateral Patent Processus Vaginalis: What About the Other Side? [PDF]

Cureus
Godosis D, Mouravas V, Theotokis P, Gargani S, Sfoungaris D, Manthou ME, Meditskou S, Spyridakis I.   +7 more
europepmc   +1 more source

Hepatic microperfusion in acute cold exposure: Dual-modality study using contrast-enhanced ultrasound and CT perfusion imaging. [PDF]

iScience
Li Y, Liu X, Cao J, Zhang W, Feng Q, Pang W, Jiang N, Yu X, Jin Z.   +8 more
europepmc   +1 more source

Techno-economic and environmental analysis of a fully renewable hybrid energy system for sustainable power infrastructure advancement. [PDF]

Sci Rep
Samatar AM, Lekbir A, Mekhilef S, Mokhlis H, Tey KS, Alassaf A.   +5 more
europepmc   +1 more source

Rethinking the role of participatory video for school mental health interventions: insights from a feasibility study in Indian secondary schools

Nag R, Prabhu S, Janardhan N, Harris K, Cooke P, Hugh-Jones S.   +5 more
europepmc   +1 more source

System memory effects in the sizing of stand‐alone PV systems

Progress in Photovoltaics: Research and Applications, 2012
ABSTRACTModels based on daily energy balance (or long‐term models) have been widely used as a tool in the stand‐alone photovoltaic (PV) system sizing, mainly with the purpose of obtaining analytical expressions of the relation between the generator size and the storage capacity of the battery.
Fragaki, Aikaterini, Markvart, Tom
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Nonlinear controller for stand-alone PV system

2012 International Conference on Multimedia Computing and Systems, 2012
The present work describes the analysis, modeling and control of a Boost-Buck power inverter used as a DC-DC and DC-AC power conditioning stage for autonomous photovoltaic (PV) systems. To maximize the steady-state input-output energy transfer ratio a backstepping controller is designed to produce balanced three phase voltage, extract and transfer a ...
Hassan Abouobaida, Mohamed Cherkaoui, Abdelmounime El Magri   +2 more
openaire   +1 more source

Multilevel Inverter Topologies for Stand-Alone PV Systems

IEEE Transactions on Industrial Electronics, 2008
This paper shows that versatile stand-alone photovoltaic (PV) systems still demand on at least one battery inverter with improved characteristics of robustness and efficiency, which can be achieved using multilevel topologies. A compilation of the most common topologies of multilevel converters is presented, and it shows which ones are best suitable to
Sérgio Daher, Jürgen Schmid, Fernando Luiz Marcelo Antunes   +2 more
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