Results 91 to 100 of about 6,200,319 (299)

A metaheuristic algorithm for regulating virtual inertia of a standalone microgrid incorporating electric vehicles

The Journal of Engineering
Modern electrical networks, particularly microgrids, have seen a sharp rise in acquiring non‐conventional sources. The inertia of the microgrid decreases drastically because RESs have been used in place of traditional synchronous generators.
Debayani Mishra, Manoj Kumar Maharana, Manoj Kumar Kar, Anurekha Nayak, Md. Minarul Islam, Taha Selim Ustun   +5 more
doaj   +1 more source

Frequency stability review [PDF]

, 1987
Certain aspects of the description and measurement of oscillator stability are treated. Topics covered are time and frequency deviations, Allan variance, the zero-crossing counter measurement technique, frequency drift removal, and the three-cornered ...
Greenhall, C. A.
core  

Control of the laser frequency of the Virgo gravitational wave interferometer with an in-loop relative frequency stability of 1.0 x 10^-21 on a 100 ms time scale

, 2009
The measurement of the space-time structure variations induced by strong cosmic events (supernovae, coalescing binaries of neutron stars, etc.) requires an oscillator with a relative stability of 10-21 on time scales typically ap100 ms.
Flaminio, R., M.A. Bizouard, Sturani, R., J. D. Fournier, V. Re, Greverie, C., J.-Y. Vinet, F. Garufi, S. Aoudia, Cagnoli, G., Van Der Putten, S., Was, M., A. Morgia, M. Alshourbagy, S. Hild, Fournier, J. -D., Brisson, V., Carbognani, F., Marchesoni, F., E. Chassande Mottin, F. Antonucci, Alshourbagy, M., J. -P. Coulon, Bosi, L., Huet, D., La Penna, P., Puppo, P., E. Tournefier, F. Barone, B. Sassolas, Robinet, F., S. Pardi, S. van der Putten, Vicere, A., E. Genin, F. Cleva, Chassande-Mottin, E., Lorenzini, M., Vajente, G., Majoran, E., Granata, V., R. Flaminio, Cella, G., J. Franc, Antonucci, F., Re, V., Bondu, F., J.-D. Fournier, Mackowski, J. -M., M. Was, J. Moreau, P. La Penna, A. Brillet, Mohan, M., B. Canuel, H. J. Bulten, A. Corsi, Marion, F., Michel, C., A. Rocchi, Terenzi, R., F. Marion, Bauer, T. S., Persichetti, G., L. Di Fiore, S. Birindelli, M. A. Bizouard, Boccara, C., M. Pichot, Davier, M., J. Y. Vinet, F. Piergiovanni, Bradaschia, C., Prodi, G. A., Mours, B., A. Toncelli, M. Yvert, C. Michel, A. Pasqualetti, Verkindt, D., F. Carbognani, R. Cavalieri, Corda, C., Minenkov, Y., V. Granata, I. Neri, Brillet, A., S. Mosca, Passaquieti, R., M. Prato, T. S. Bauer, Morgia, A., Frasconi, F., Sentenac, D., Yvert, M., P. Ruggi, G. Vedovato, G. Ballardin, F. Ricci, M. Drago, F. Fidecaro, J.F.J. van den Brand, D. Sentenac, Man, N., Pasqualetti, A., N. Morgado, H. Heitmann, G.A. Prodi, R. Passaquieti, F. Nocera, M. Di Paolo Emilio, M. Mantovani, Dattilo, V., Pinard, L., K. G. Arun, H.J. Bulten, Hello, P., J. -M. Mackowski, E. Calloni, F. Travasso, Gemme, G., Milano, L., Mosca, S., R. Poggiani, O. Rabaste, Cleva, F., Giazotto, A., C. Bradaschia, J. Marque, G. A. Prodi, Van Den Brand, J. F. J., V. Brisson, Pardi, S., L. Rolland, A. Gennai, F. Cavalier, A. Freise, B. Swinkels, E. Campagna, F. Frasconi, Arun, K. G., Freise, A., Vavoulidis, M., Calloni, E., L. Milano, C. Boccara, Beker, M., Vocca, H., Leroy, N., R. De Rosa, Di Lieto, A., Ferrante, I., Garufi, F., Toncelli, A., H. Vocca, Buskulic, D., Paoletti, F., Romano, R., Masserot, A., J.-P. Coulon, Chincarini, A., De Rosa, R., T. Regimbau, S. Chatterji, Cuoco, E., M. Granata, Di Paolo Emilio, M., Frasca, S., F. Robinet, Campagna, E., A. Colla, Cavalieri, R., N. Man, J. Trummer, R. Sturani, A. Dari, M. Mohan, Neri, I., V. Fafone, F. Bondu, Birindelli, S., Passuello, D., Rocchi, A., J. M. Mackowski, D. Huet, Acernese, F., T.h. S. Bauer, D. Verkindt, C. Greverie, Prato, M., A. Giazotto, Hild, S., Palomba, C., M. Punturo, J. P. Coulon, L. Pinard, MARTELLI, FILIPPO, M. Beker, E. Coccia, Punturo, M., L. Bosi, Genna, A., Pagliaroli, G., Swinkels, B., Vinet, J. -Y., S. D'Antonio, Fidecaro, F., Barsuglia, M., V. Dattilo, R. Terenzi, Menzinger, F., Canuel, B., P. Astone, A. Di Lieto, Bigotta, S., PIERGIOVANNI, FRANCESCO, Rabaste, O., Vedovato, G., M. Davier, Fiori, I., M. Colombini, Mantovani, M., E. Chassande-Mottin, Trummer, J., Di Virgilio, A., Barone, F., Braccini, S., Granata, M., N. Letendre, J. Colas, E. Cuoco, Nocera, F., Dari, A., Day, R., Moreau, J., J.-M. Mackowski, D. Buskulic, Gammaitoni, L., Salemi, Francesco., F. Vetrano, I. Fiori, P. Rapagnani, Ricci, F., Bizouard, M. A., Franc, J., Piergiovanni, F., K.G. Arun, Regimbau, T., C. Corda, L. Bonelli, J. F. J. van den Brand, Di Fiore, L., F. Martelli, C. Palomba, P. Hello, STURANI, RICCARDO, Astone, P., Bonelli, L., Rolland, L., Ruggi, P., A. Vicere, Colombini, M., A. Masserot, Losurdo, G., Sassolas, B., D'Antonio, S., Del Prete, M., Corsi, A., Martelli, F., Pichot, M., Coccia, E., P. Puppo, M. del Prete, Cavalier, F., G. Losurdo, I. Ferrante, S. Bigotta, F. Salemi, VETRANO, FLAVIO, Coulon, J. -P., Aoudia, S., Rapagnani, P., L. Gammaitoni, A. Di Virgilio, M. Lorenzini, Morgado, N., Colas, J., M. Vavoulidis, G. Vajente, Bulten, H. J., Drago, M., Ballardin, G., Colla, A., G. Cagnoli, GUIDI, GIANLUCA MARIA, Fafone, V., L. Carbone, Y. Minenkov, VICERE', ANDREA, V. Loriette, M. Tonelli, Guidi, G., Carbone, L., Poggiani, R., G. Cella, G. Guidi, F. Menzinger, Travasso, F., R. Romano, S. Frasca, Chatterji, S., F. Marchesoni, N. Leroy, S. Braccini, Tournefier, E., E. Majorana, Genin, E., Letendre, N., G. Persichetti, F. Acernese, M. Barsuglia, F. Paoletti, Tonelli, M., J. -Y. Vinet, Vetrano, F., G. Gemme, G. Pagliaroli, D. Passuello, Loriette, V., Marque, J., Th.S. Bauer, Heitmann, H., B. Mours, J. -D. Fournier, A. Chincarini, R. Day   +335 more
core   +1 more source

The microbiome in human skin aging

FEBS Letters, EarlyView.
Age‐related skin changes encompass the well‐known visible phenotypic alterations, together with microbiome dysbiosis and a series of molecular aging hallmarks. These hallmarks characterize not only a fully stablished aged phenotype but also the skin aging process itself.
Manuel Huerta Arana, Cornelia Wiegand, Omid Omrani, Mario Fabri   +3 more
wiley   +1 more source

Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry

FEBS Letters, EarlyView.
EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri, Ayaka Nagasato‐Ichikawa, Keita Iida, Shuhei Kimura, Akira Imamoto, Mariko Okada   +5 more
wiley   +1 more source

Comparative analysis and optimal allocation of virtual inertia from grid‐forming and grid‐following controlled ESSs

IET Renewable Power Generation
A broad consensus of neutralizing the carbon dioxide emissions facilitates the transition to the renewable energy power system. Meanwhile, the concerns about the volatility of renewable energies are growing as the rotational inertia of power system ...
Naixuan Zhu, Pengfei Hu, Chongxi Jiang, Yanxue Yu, Daozhuo Jiang   +4 more
doaj   +1 more source

A thermal-noise-limited fiber frequency reference with 0.1 Hz / Hz stability

We develop an all-passive, fiber frequency reference with a state-of-the-art short-term stability of 0.1Hz/Hz. We explore the impact of intrinsic fiber thermal noise and show it limits the system in the 1 Hz Fourier frequency band.Peer ...
McRae, Terry G., Zhang, Ya, Gray, Malcolm A., Chow, Jong H., Bandutunga, Chathura P.   +4 more
core   +1 more source

Instability of a plane conducting free surface submitted to an alternating magnetic field [PDF]

, 1998
This paper considers the stability of a horizontal liquid-metal free surface in the presence of a horizontal alternating magnetic field. A weak formulation is used to derive a generalized Mathieu–Hill equation for the evolution of surface perturbations ...
Fautrelle, Y., Sneyd, Alfred D.
core  

Emerging experimental and computational methods for studying redox‐regulated structural transitions

FEBS Letters, EarlyView.
Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass, Dana Reichmann, Gábor Erdős   +2 more
wiley   +1 more source

Unit Commitment With Analytical Under-Frequency Load-Shedding Constraints for Island Power Systems

IEEE Access
This paper presents a novel corrective frequency-constrained unit commitment (C-FCUC) for island power systems implementing analytical constraints on underfrequency load shedding (UFLS).
Mohammad Rajabdorri, Almudena Rouco, Lukas Sigrist, Enrique Lobato   +3 more
doaj   +1 more source