Results 21 to 30 of about 470,563 (307)

Characterizing biochar as alternative sorbent for oil spill remediation [PDF]

, 2017
Biochar (BC) was characterized as a new carbonaceous material for the adsorption of toluene from water. The tested BC was produced from pine wood gasification, and its sorption ability was compared with that of more common carbonaceous materials such as ...
Demnerova, Katerina, Kastanek, Petr, Petrangeli Papini, Marco, Pettiti, Ida, Silvani, Ludovica, Vrchotova, Blanka   +5 more
core   +1 more source

Dynamical Modelling of a Centrifugal Fan Driven by an Induction Motor and Experimental Validation

Energies, 2023
The application of electrical drives in the control of centrifugal fans and pumps is a well-established area that leads to substantial energy savings. It requires electrical and automation engineers to have some knowledge relevant to drives about fan and
Cebrail Turkeri, Oleh Kiselychnyk
doaj   +1 more source

FPGA Digital Architecture for Multilevel Synchronous Optimal PulseWidth ModulationWith Seamless Pulse Pattern Transitions

Eletrônica de Potência, 2023
received the B.S. degrees in electrical engineering from the University Center of Jaraguá do Sul (UNERJ), Jaraguá do Sul, Brazil, in 2009, and the M.S.
Jackson Lago, Lúcio Steckling, Marcelo Lobo Heldwein   +2 more
doaj   +1 more source

Ratchet Effects for Vortices in Superconductors with Periodic Pinning Arrays

, 2003
Using numerical simulations we show that novel transport phenomena can occur for vortices moving in periodic pinning arrays when two external perpendicular ac drives are applied.
C. Reichhardt, C.J. Olson Reichhardt, Hastings, Lee, Matsuda, Metlushko, Olson, Reichhardt, Reimann, Rosseel, Van Look, Wambaugh   +11 more
core   +1 more source

Dielectric nonlinearity of relaxor ferroelectric ceramics at low ac drives

, 2000
Dielectric nonlinear response of (PbMg$_{1/3}$Nb$_{2/3}$O$_3$)$_{0.9}$(PbTiO$_3$)$_{0.1}$ (0.9PMN-0.1PT) relaxor ceramics was investigated under different ac drive voltages. It was observed that: (i) the dielectric permittivity is independent on ac field
Bing-Lin Gu, Bokov V A, Chen J, Colla E V, Cross L E, Glazounov A E, Glazounov A E, Gui H, Liu Xi, Newnham R E, Pan X Q, Randall C A, Shrout T R, Smolenski G A, Swartz S L, Tan Q, Uchino K, Xi Liu, Xiao-Wen Zhang, Zhi-Rong Liu   +19 more
core   +1 more source

Improved non‐cascaded continuous‐set model‐free predictive control scheme for PMSM drives

IET Power Electronics
This article presents an improved multiple‐step model‐free predictive control (MS‐MFPC) method for permanent magnet synchronous motor (PMSM) drives. Specifically, a reduced‐order MS‐MFPC based on an ultra‐local model, which employs only the input and ...
Bowen Xu, Qiyi Wu, Jien Ma, Xing Liu, Youtong Fang   +4 more
doaj   +1 more source

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

Dynamic multi‐agent dc‐bus reconfiguration in modular motor drives with a stacked polyphase bridge converter

IET Electric Power Applications
A stacked polyphase bridge converter consists of multiple standard, three‐phase two‐level voltage source inverters connected in series to the same dc voltage source. The authors present a decentralised and dynamic dc‐bus reconfiguration strategy for this
Lynn Verkroost, Alexander Vande Ghinste, Lorrana Faria da Rocha, Jeroen D. M. De Kooning, Frederik De Belie, Peter Sergeant, Pål Keim Olsen, Hendrik Vansompel   +7 more
doaj   +1 more source

A review of sensorless control methods for AC motor drives

CES Transactions on Electrical Machines and Systems, 2018
In recent years, the application of sensorless AC motor drives is expanding in areas ranging from industrial applications to household electrical appliances.
Dianguo Xu, Bo Wang, Guoqiang Zhang, Gaolin Wang, Yong Yu   +4 more
doaj   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

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, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source