Results 21 to 30 of about 33,716,273 (299)

The association between tobacco and the risk of asthma, rhinoconjunctivitis and eczema in children and adolescents : analyses from Phase Three of the ISAAC programme [PDF]

, 2012
We are grateful to the children and parents who participated in ISAAC Phase Three and the coordination and assistance by the school staff is sincerely appreciated.
Beasley, Richard, Keil, Ulrich, Montefort, Stephen, Mitchell, Edwin A., ISAAC Phase Three Study Group, Odhiambo, Joseph, (N Aıt-Khaled, HR Anderson, MI Asher, B Bjorksten, B Brunekreef, J Crane, P Ellwood, C Flohr, S Foliaki, F Forastiere, L Garc´ıa-Marcos, CKW Lai, J Mallol, N Pearce, CF Robertson, AW Stewart, D Strachan, E von Mutius, SK Weiland, G Weinmayr, H Williams, G Wong, TO Clayton, E Ellwood, CE Baena-Cagnani, M Gomez, ME Howitt, R Pinto-Vargas, AJLA Cunha, L de Freitas Souza, C Kuaban, A Ferguson, D Rennie, P Standring, P Aguilar, LAV Benavides, A Contreras, Y-Z Chen, O Kunii, Q Li Pan, N-S Zhong, G Aristizabal, AM Cepeda, GA Ordonez, BN Koffi, C Bustos, M-A Riikjarv, K Melaku, R Saaga-Banuve, J Pekkanen, E Vlaski, IE Hypolite, YL Lau, G Wong, Z Novak, G Zsigmond, S Awasthi, S Bhave, NM Hanumante, KC Jain, MK Joshi, VA Khatav, SN Mantri, AV Pherwani, S Rego, M Sabir, S Salvi, G Setty, SK Sharma, V Singh, TU Sukumaran, PS Suresh Babu, CB Kartasasmita, P Konthen, W Suprihati, M-R Masjedi, A Steriu, H Odajima, JA al-Momen, C Imanalieva, J Kudzyte, BS Quah, KH Teh, M Baeza-Bacab, M Barragan-Meijueiro, BE Del-Rıo-Navarro,, E Vlaski, Mitchell, Edwin A   +8 more
core   +1 more source

Early life exposure to farm animals and symptoms of asthma, rhinoconjunctivitis and eczema : an ISAAC Phase Three study [PDF]

, 2012
We are grateful to the children and parents who willingly cooperated and participated in ISAAC Phase Three and the coordination and assistance by the school staff is sincerely appreciated.
Brunekreef, Bert, Clayton, Tadd O., Montefort, Stephen, Wong, Gary K., ISAAC Phase Three Study Group, Von Mutius, Erika, Odhiambo, Joseph   +6 more
core   +1 more source

Performance Evaluation of a PV-Based Multilevel Inverter with Improved THD and Efficiency [PDF]

Journal of Applied Research in Electrical Engineering
This work presents the design, simulation, and performance evaluation of a three-phase multilevel inverter (MLI) system integrated with photovoltaic (PV) technology for grid-connected applications.
Parimalasundar Ezhilvannan, Kumar Reddy Cheepati, Suresh Krishnan   +2 more
doaj   +1 more source

Three-Phase Single-Stage Photovoltaic System With Synchronverter Control: Power System Simulation Studies

IEEE Access, 2022
The performance of a grid forming inverter integrating solar PV/Wind farms with the grid is currently a topic of wide interest. Synchronverter control is one of the well-known grid forming converter techniques. Evaluation of synchronverter control in the
Ajinkya J. Sonawane, Amod C. Umarikar
doaj   +1 more source

Partition of Proteins in a Three‐Phase System [PDF]

European Journal of Biochemistry, 1974
A system consisting of three liquid phases has been used for partition of proteins. It is composed of water and three high‐molecular compounds: dextran, Ficoll and poly(ethyleneglycol) the latter partly converted into a derivative. All the three phases have a high water content, 71–79%, and dissolve proteins.
A, Hartman, G, Johansson, P A, Albertsson   +2 more
openaire   +2 more sources

Global variation in the prevalence and severity of asthma symptoms : phase three of the International Study of Asthma and Allergies in Childhood (ISAAC) [PDF]

, 2009
Background: Phase Three of the International Study of Asthma and Allergies in Childhood (ISAAC) measured the global prevalence and severity of asthma symptoms in children.
Foliaki, S., Beasley, Richard, Crane, J., Lai, Christopher K. W., Shah, J., Montefort, Stephen, ISAAC Phase Three Study Group, Weiland, S.   +7 more
core   +1 more source

Modulation Variants in DC Circuits of Power Rectifier Systems with Improved Quality of Energy Conversion—Part I

Energies, 2021
The article presents various concepts of three-phase power rectifiers with improved quality of converted electric power. This effect is obtained by modulating the currents in the DC output circuits of the rectifiers by means of power electronics ...
Tomasz Pajchrowski, Michał Krystkowiak, Dominik Matecki   +2 more
doaj   +1 more source

Hardware for classification of power quality problems in three phase system using Microcontroller

Cogent Engineering, 2017
Power quality is a growing concern as the number of electric sensitive loads is increasing day by day in all fields. Poor power quality is badly affecting sensitive loads causing instability, malfunctioning, loss of data and great loss of economy.
S. Asha Kiranmai, A. Jaya Laxmi
doaj   +1 more source

Three-Phase to Single-Phase Generation System Based on Doubly-Fed Induction Generator

Eletrônica de Potência, 2020
This paper presents a three-phase to singlephase six-leg converter for a wind energy conversion system based on Doubly-Fed Induction Generator (DFIG).
Filipe V. Rocha, Nady Rocha, Victor F. M. B. Melo, Edison R. C. da Silva, Cursino B. Jacobina   +4 more
doaj   +1 more source

Mathematical Foundations for Balancing Single-Phase Residential Microgrids Connected to a Three-Phase Distribution System

IEEE Access, 2022
With the increased installation of single-phase rooftop PV systems, in-house battery storage units, and high-power plug-in loads (i.e., EVs) at single-phase residential sites, it is prevalent that an increasing number of residential distribution systems ...
Syed A. Raza, Jin Jiang
doaj   +1 more source