Results 251 to 260 of about 3,167,411 (345)

Contrasting pathways to tree longevity in gymnosperms and angiosperms. [PDF]

Nat Commun
Brienen RJW, Locosselli GM, Krottenthaler S, Gloor E, Wrigley R, Voelker SL, Altman J, Altmanova N, Anderegg LDL, Baliva M, Barua D, Bazant V, Black B, M Brown P, Ceccantini G, DeRose RJ, Villanueva Diaz J, Di Filippo A, Dolezal J, Duchesne L, Earle C, Fibich P, Griesbauer H, Helama S, Klesse S, Korznikov K, Lindenmayer D, Liu S, Lopez L, Mencuccini M, Nagel TA, Pavlin J, Pederson N, Piovesan G, Restaino C, Reich PB, Sauchyn D, Schöngart J, Shaw JD, Smith D, Sunny R, Svoboda M, Villalba R, Wood LJ, Zhang C.   +44 more
europepmc   +1 more source

El Niño modulated Holocene hydroclimate extremes as a dipolar pattern of droughts in northeastern China and floods in southwestern China. [PDF]

Sci Rep
Fan J, Xu H, Zhang F, Jiang H, Zhai D, Shi W, Wei X, Zhang W, Xiao J.   +8 more
europepmc   +1 more source

Existence of variational solutions to doubly nonlinear systems in nondecreasing domains. [PDF]

J Evol Equ
Schätzler L, Scheven C, Siltakoski J, Stanko C.   +3 more
europepmc   +1 more source

Experimental detection of vortices in magic-angle graphene. [PDF]

Nat Commun
Perego M, Galante Agero C, Mestre Torà A, Portolés E, Denisov AO, Taniguchi T, Watanabe K, Gaggioli F, Geshkenbein V, Blatter G, Ihn T, Ensslin K.   +11 more
europepmc   +1 more source

Systematic review update of organisational-level mental health promotion interventions: evidence from healthcare, construction, and telework-based mobile work settings. [PDF]

Int Arch Occup Environ Health
Giovanis E, Ozdamar O, Aust B, Cresswell-Smith J, Pashoja AC, Leduc C, Sinesi A, Piña C, Van Audenhove C, Qirjako G, Ross V, Kenneally M, Reich H, Coppens E, da Conceição V, Torner HP, Mustafa S, Purebl G, O'Connor A, Bücker J, Riva S, Seyen APT, Arensman E, Lobo P, PROSPERH Consortium.   +24 more
europepmc   +1 more source

Inland Deforestation Organizes Convective Extremes.

Engelbrecht E, Haerter J, Klein C.
europepmc   +1 more source

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Online Grid Impedance Estimation-Based Adaptive Control of Virtual Synchronous Generators Considering Strong and Weak Grid Conditions

IEEE Transactions on Sustainable Energy, 2023
The conventional virtual synchronous generator (VSG) is typically designed to meet certain operational and control requirements in the islanded mode.
N. Mohammed, M. H. Ravanji, Weihua Zhou, B. Bahrani   +3 more
semanticscholar   +1 more source

Performance Improvement of Weak Grid-Connected Wind Energy System Using FLSRF-Controlled DSTATCOM

IEEE transactions on industrial electronics (1982. Print), 2023
Wind energy (WE) is emerging as a green and clean energy source. The power quality (PQ) significantly deteriorates when WE sources are connected to the weak ac grid. This is due to the variable wind speed, the impedance of weak grids, and nonlinear loads.
Gajendra Singh Chawda, Abdul Gafoor Shaik, Om Prakash Mahela, S. Padmanaban   +3 more
semanticscholar   +1 more source

Grid Impedance Impact Analysis of the Weak Grid-Tied VSC

2021 IEEE Green Technologies Conference (GreenTech), 2021
The grid impedance is widely recognized as the key factor to the stability of the grid-tied power electronic devices. However, the influence of the grid impedance ratio is always neglected due to the assumption that grid reactance is much large than grid resistance.
Hong Hu, Rui Yin, Shanshan Wang, Yuanyuan Sun, Guanglu Wu, Bing Zhao, Jianhua Li, Haoyin Ding, Lu Cao, Lin Yu   +9 more
openaire   +1 more source