Results 81 to 90 of about 26,369 (176)

A Frequency Separation Rule-based Power Management Strategy for a Hybrid Fuel Cell-Powered Drone [PDF]

, 2020
Zhou, Zhibin, Mohamed Benbouzid, Mohamed Nadir Boukoberine, Zhibin Zhou, Donateo, Teresa, Benbouzid, Mohamed, Teresa Donateo, Boukoberine, Mohamed Nadir   +7 more
core   +1 more source

Phase‐Accurate Internal Tides in a Global Ocean Forecast Model: Potential Applications for Nadir and Wide‐Swath Altimetry

Geophysical Research Letters
Internal tides (ITs) play a critical role in ocean mixing, and have strong signatures in ocean observations. Here, global IT sea surface height (SSH) in nadir altimetry is compared with an ocean forecast model that assimilates de‐tided SSH from nadir ...
Badarvada Yadidya, Brian K. Arbic, Jay F. Shriver, Arin D. Nelson, Edward D. Zaron, Maarten C. Buijsman, Ritabrata Thakur   +6 more
doaj   +1 more source

A unified framework for co-optimization of PFR and FFR reserves using linearized tri-criteria frequency constraints

International Journal of Electrical Power & Energy Systems
The increasing penetration of inverter-based resources reduces system inertia and heightens concerns about frequency stability. This paper proposes a systematic methodology for jointly optimizing primary frequency response (PFR) and fast frequency ...
Jongin Kim, Jae Woong Shim, Hunyoung Shin   +2 more
doaj   +1 more source

İskemik inme hastalarında nadir nedenler; Ankara Tıp deneyimi [PDF]

, 2018
İskemik inme genç popülasyonda ileri yaşa göre daha az görülmekle birlikte hasta ve hastaların aileleri ve toplumun üzerinde ciddi bir etkisi vardır. Bu çalışmada;inme veri tabanımızda kayıtlı 50 yaş altındaki iskemik inme hastaları,daha yaşlı hastalar ...
Rawandı, Anwar
core  

Association of actigraphy-derived circadian phase indicators with the nadir of spindle frequency

Biological Rhythm Research, 2023
Csenge G. Horváth, Róbert Bódizs
openaire   +1 more source

Virtual inertia to the AC Microgrid to improving the ROCOF and frequency Nadir in a Hybrid AC/DC Microgrid. [PDF]

To move the global energy away from fossil fuels towards renewable energy leads toward a more complex grid, after experiencing a reduction of inertia when integrating large renewable energy sources (RES).
Shrestha Newar, Dan Bahadur
core  

Frequency-constrained robust unit commitment via physics-guided piecewise-linear nadir surrogates and adaptive virtual inertia. [PDF]

Sci Rep
Fard SHB, Shakarami MR, Doostizadeh M.
europepmc   +1 more source

A Frequency-Constrained MILP Framework for Power System Restoration Planning [PDF]

In this thesis, we formulate a frequency-constrained mixed-integer linear program (MILP) for black-start restoration planning of transmission systems.
Zou, Xiangyu
core   +1 more source

Obstructive sleep apnea and primary snoring in children are associated with oropharyngeal dysbiosis and a mild compositional imbalance in the gastrointestinal tract. [PDF]

J Clin Sleep Med
Hudson J, Akhand A, Nwe MT, Coffey MJ, van Dorst J, Chuang S, Ooi CY.   +6 more
europepmc   +1 more source

Sleep Apnea and Paroxysmal Atrial Fibrillation: Diurnal Patterning of Autonomic Dysfunction and Influence of CPAP Therapy. [PDF]

J Arrhythm
Khazaie S, Wang L, Kaffashi F, Sandhu A, Chung MK, Heinzinger CM, Van Wagoner DR, Loparo KA, Walia HK, Bena JF, Mehra R.   +10 more
europepmc   +1 more source