Results 21 to 30 of about 30,704,010 (206)

Fast and robust three-dimensional best path phase unwrapping algorithm [PDF]

, 2007
What we believe to be a novel three-dimensional (3D) phase unwrapping algorithm is proposed to unwrap 3D wrapped-phase volumes. It depends on a quality map to unwrap the most reliable voxels first and the least reliable voxels last.
Moore, Christopher J., Gdeisat, Munther A., Abdul-Rahman, Hussein S., Lalor, Michael J., Lilley, Francis, Burton, David R.   +5 more
core   +1 more source

Power Management in Three-Phase Grid-Integrated PV System with Hybrid Energy Storage System

Energies, 2023
The management of energy in distribution networks has been gathering attention in recent years. The simultaneous control of generation and demand is crucial for achieving energy savings and can further lower energy pricing.
Chinmaya Jagdev Jena, Pravat Kumar Ray
doaj   +1 more source

Mathematical Modelling of Transient Processes in a Three Phase Electric Power System for a Single Phase Short-Circuit

Energies, 2022
Field approaches are employed to develop a mathematical model of a power network section. The facility consists of two electric power subsystems described with ordinary differential equations and presented as concentrated parameter systems connected with
Andriy Chaban, Marek Lis, Andrzej Szafraniec, Vitaliy Levoniuk   +3 more
doaj   +1 more source

Harmonic Identification by DQ Axis with Fourier Method for Active Power Filters [PDF]

Songklanakarin Journal of Science and Technology (SJST), 2006
This paper proposes a new method of harmonic identification named DQ axis with Fourier (DQF) method. It lies on the basis of the DQ axis method enhanced by the sliding window Fourier analysis (SWFA).
Kulworawanichpong, T., Areerak, K., Sujitjorn, S.   +2 more
doaj  

Adaptive nonlinear control of single-phase to three-phase UPS system

MATEC Web of Conferences, 2014
This work deals with the problems of uninterruptible power supplies (UPS) based on the single-phase to three-phase converters built in two stages: an input bridge rectifier and an output three phase inverter.
Kissaoui M., Abouloifa A., Giri F., Chaoui F.Z., Abouelmahjoub Y.   +4 more
doaj   +1 more source

Efficiency Analysis of PWM Inverter Fed Three-Phase and Dual Three-Phase High Frequency Induction Machines for Low/Medium Power Applications [PDF]

, 2008
A performance analysis of three-phase and dual three-phase (DTP) induction pulsewidth modulation (PWM) inverter-fed motor drives is conducted in this paper. The focus is on the efficiency performance of high-frequency DTP machines compared to their three-
Boglietti, Aldo, Tenconi, Alberto, Bojoi, Iustin Radu, Cavagnino, Andrea   +3 more
core   +1 more source

District Heating System Optimisation: A Three-Phase Thermo-Hydraulic Linear Model

Energies, 2023
Investments in the development of the district heating system require a thorough analysis of the technical, economic, and legal aspects. Regarding the technical and economic context, a mathematical model of the district heating system has been proposed ...
Piotr Pałka, Marcin Malec, Przemysław Kaszyński, Jacek Kamiński, Piotr Saługa   +4 more
doaj   +1 more source

Are environmental factors for atopic eczema in ISAAC Phase Three due to reverse causation? [PDF]

, 2018
Some previously described environmental associations for atopic eczema (AE) may be due to reverse causation. We explored the role of reverse causation by comparing individual- and school-level results for multiple AE risk factors.
Garcia-Marcos, L, Langan, Sinead M., Ellwood, P, Rutter, Charlotte E, Silverwood, Richard J, Langan, SM, ISAAC Phase Three Group, Williams, HC, Strachan, David P., Williams, Hywel C., Rutter, Charlotte, Strachan, DP, Pearce, Neil, Asher, I, Garcia-Marcos, Luis, Silverwood, Richard J., Pearce, N, Langan, Sinéad M, Elwood, Philippa, Silverwood, RJ, Ellwood, Philippa, Rutter, Charlotte E., Strachan, David P, Williams, Hywel C, Asher, Innes, Chiarella, Pascual, Rutter, CE, ISAAC Phase Three Study Group, Langan, Sine´ad M., Cepeda, A. M., Barba, S., Riikjarv, M-A, Bhave, S., Langan SM, Beasley, R., Gomez, M., Onadeko, B. O., Rennie, D., Del-Rio-Navarro, B. E., Flohr, C., Setty, G., Romieu, I, Amarales, L., Silverwood RJ, al-Momen, J. A., MacKay, R., Lai, C. K.W., Konthen, P., de Freitas Souza, L., Joshi, M. K., Sukumaran, T., Howitt, M. E., Imanalieva, C., Ramirez-Chanona, N., Koffi, B. N., Merida-Palacio, J., V, Singh, V, Shah, J., Standring, P., Bjorksten, B., Asher, M., I, Cunha, A. J.D.A., Bustos, C., Barragan-Meijueiro, M., Pearce N, Suprihati, W., Ordonez, G. A., Jain, K. C., Garcia-Marcos L, Rego, S., Lee, B. W., Cua-Lim, F., Ellwood, E., Pattemore, P., Lai, C. K., Chiarella, P., Bouayad, Z., Asher, M. I., Tuuau-Potoi, N., Cukier, G., Khatav, V. A., Awasthi, S., Aguirre, V, Robertson, C. F., Asher I, Sabir, M., Weiland, S. K., Strachan, D., Foliaki, S., Pherwani, A., V, Kartasasmita, C. B., Keil, U., Mantri, S. N., Clayton, T. O., Sa'aga-Banuve, R., Ellwood P, Sears, M., Linares-Zapien, F. J., Odhiambo, J., Brunekreef, B., Aguilar, P., Sole, D., Benavides, L. A., von Mutius, E., da Cunha, A. J., Hanumante, N. M., Kunii, O., Zsigmond, G., Kudzyte, J., Garcia-Almaraz, R., Wong, G., Gonzalez-Diaz, S. N., Pearce, N., Baena-Cagnani, C. E., Contreras, A., Nishima, S., Pekkanen, J., Garcia-Marcos, L., Hypolite, I. E., Chen, Y-Z, Ait-Khaled, N., Rutter CE, Anderson, R., Forastiere, F., ?, ?, Aristizabal, G., Williams HC, Anderson, H. R., de Bruyne, J., Petrolera de Salud, Caja, Mallol, J., Novak, Z., Odajima, H., Baeza-Bacab, M., Weyler, J., Kuaban, C., Ferguson, A., Crane, J., Williams, H. C., Lai, C. K. W., Quah, B. S., Montefort, S., Sharma, S. K., Pinto-Vargas, R., Pan, Q. Li, Masjedi, M. R., Melaku, K., Babu, P. S. Suresh, Flohr, C.; id_orcid, Chen, Y. Z., Moyes, C., Strachan DP, Weinmayr, G., Romero-Tapia, S., Zhong, N. S., Teh, K. H., Breborowicz, A., Baratawidjaja, K., El Sony, A., Ellwood, P., Salvi, S., Steriu, A., Stewart, A. W., Mitchell, E. A., ISAAC Phase 3 Study Group, Rutter, C   +165 more
core   +1 more source

Accurate Parameter Estimation for Unbalanced Three-Phase System

The Scientific World Journal, 2014
Smart grid is an intelligent power generation and control console in modern electricity networks, where the unbalanced three-phase power system is the commonly used model. Here, parameter estimation for this system is addressed.
Yuan Chen, Hing Cheung So
doaj   +1 more source

Robust three-dimensional best-path phase-unwrapping algorithm that avoids singularity loops [PDF]

, 2009
In this paper we propose a novel hybrid three-dimensional phase-unwrapping algorithm, which we refer to here as the three-dimensional best-path avoiding singularity loops (3DBPASL) algorithm.
Burton, David, Arevalillo-Herráez, Miguel, Gdeisat, Munther, Abdul-Rahman, Hussein S., Qudeisat, Mohammed, Lilley, Francis, Sheltraw, Daniel, Lalor, Michael, Moore, Christopher   +8 more
core   +1 more source