Results 31 to 40 of about 3,140,596 (304)

Calibration of the LOFAR low-band antennas using the Galaxy and a model of the signal chain [PDF]

, 2019
The LOw-Frequency ARray (LOFAR) is used to make precise measurements of radio emission from extensive air showers, yielding information about the primary cosmic ray.
Bonardi, A., Buitink, S., Corstanje, A., Falcke, H., Hare, B. M., Huege, T., Hörandel, J. R., Mitra, P., Mulrey, K., Nelles, A., Rachen, J. P., Rossetto, L., Schellart, P., Scholten, O., ter Veen, S., Thoudam, S., Trinh, T. N. G., Winchen, T.   +17 more
core   +2 more sources

Sizing HESS as inertial and primary frequency reserve in low inertia power system

IET Renewable Power Generation, 2021
Energy storage systems are recognised as the potential solution to alleviate the impacts of reduced inertia and intermittency in power systems due to the integration of renewable energy sources.
Umer Akram, N. Mithulananthan, Rakibuzzaman Shah, S. Ali Pourmousavi   +3 more
doaj   +1 more source

Frequency support characteristics of grid-interactive power converters based on the synchronous power controller [PDF]

, 2016
Grid-interactive converters with primary frequency control and inertia emulation have emerged and are promising for future renewable generation plants because of the contribution in power system stabilization.
Remón Rodríguez, Daniel, Rodríguez Cortés, Pedro, Zhang, Weiyi   +2 more
core   +2 more sources

Control Strategy of BESS for Providing Both Virtual Inertia and Primary Frequency Response in the Korean Power System

Energies, 2019
As the battery energy storage system (BESS) has been considered to be a solution to the diminished performance of frequency response in the Korean power system, in which renewable energy resources (RESs) are expected to increase rapidly, this paper ...
Woo Yeong Choi, Kyung Soo Kook, Ga Ram Yu   +2 more
doaj   +1 more source

An Active Frequency Support Strategy for Costal Wind Farms in East China

Zhongguo dianli, 2023
According to the characteristics of transient frequency response of the East China Power Grid under various operation modes, an active frequency support strategy is proposed for coastal wind farms.
Jianhua LI, Lu CAO, Renxin YANG, Zhenyan DENG, Zheng LI, Xu CAI   +5 more
doaj   +1 more source

Sizing of an Energy Storage System for Grid Inertial Response and Primary Frequency Reserve [PDF]

, 2016
Large-scale integration of renewable energy sources in power system leads to the replacement of conventional power plants (CPPs) and consequently challenges in power system reliability and security are introduced.
Chaudhary, Sanjay Kumar, Craciun, Bogdan-Ionut, Knap, Vaclav, Stroe, Daniel Loan, Swierczynski, Maciej Jozef, Teodorescu, Remus   +5 more
core   +2 more sources

Enhancing Optical Up-Conversion Through Electrodynamic Coupling with Ancillary Chromophores [PDF]

, 2014
In lanthanide-based optical materials, control over the relevant operating characteristics–for example transmission wavelength, phase and quantum efficiency–is generally achieved through the modification of parameters such as dopant/host combination ...
Andrews D. L., Andrews D. L., Andrews D. L., Andrews D. L., Boivin D., Cao B. S., Chatterjee D. K., Chen G., Chen J., Cheng Y. Y., Craig D. P., Daniels G. J., David L. Andrews, Desirena H., Diaz-Torres L. A., Dong H., Dávila Romero L. C., Ford J. S., Fujii M., Grynberg G., Guo H., Haase M., Herter B., Huang X., Jamie M. Leeder, Jenkins R. D., Jiang T., Kim J. W., Krämer K. W., Li C., Li C., Lin M., Lock M. P. E., Lupei A., Luu Q., Mai H.-X., Salam A., Salam A., Salam A., Scholes G. D., Sun Q.-C., Sun Y., Suyver J. F., Wagnière G., Wang F., Wang F., Wang H., Wang J., Xu Y., Zhang C., Zhang W.   +50 more
core   +1 more source

Adaptive time-frequency detection and filtering for imaging in heavy clutter [PDF]

, 2011
. We introduce an adaptive approach for the detection of a reflector in a strongly scattering medium using a timefrequency representation of the array response matrix followed by a Singular Value Decomposition (SVD).
C. Tsogka, Coifman R.R., G. Papanicolaou, L. Borcea, Tulino A.M.   +4 more
core   +3 more sources

Prediction method of primary frequency modulation capability of power system based on MEA-BP algorithm

Energy Reports, 2023
In order to accurately predict the primary frequency modulation capability of power system when frequency deviation occurs, a method for predicting primary frequency modulation performance of power system based on improved neural network with thought ...
Yudong Zhang, Fan Tang, Xiaobin Liang, Jian Sun, Hongxun Li, Hang Ru   +5 more
doaj   +1 more source

Amplitude and frequency-modulated stimuli activate common regions of human auditory cortex [PDF]

, 2003
Hall et al. (Hall et al., 2002, Cerebral Cortex 12:140–149) recently showed that pulsed frequency-modulated tones generate considerably higher activation than their unmodulated counterparts in non-primary auditory regions immediately posterior and ...
Hall, DA, Hart, HC, Palmer, AR
core   +1 more source