Results 51 to 60 of about 6,200,319 (299)

A Novel Control Methodology Based on the Combination of TIDF and PID^μD Controllers Enhanced by the Orca Predation Algorithm for a Hybrid Microgrid System Involving Electric Vehicles

IEEE Access, 2023
In this study, an innovative mixed regulator based on integer and fractional order control is suggested for load frequency management. Tilt Integral Derivative with Filter (TIDF) and Proportional Integral Derivative Fractional Derivative with Filter (PID
Mohammed H. Alqahtani, Ali S. Aljumah, Sulaiman Z. Almutairi, Seada Hussen Adem, Adel Oubelaid, Kareem M. AboRas   +5 more
doaj   +1 more source

Feeding, Fear, and Acceptance: Caregivers’ Experiences of Nutritional Support During Childhood Cancer Treatment

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose To explore caregivers' experiences and perceptions of the nutritional challenges faced by children and adolescents undergoing cancer treatment, including oral intake and the use of nutritional support. Methods This was a qualitative study based on focus groups with parents and caregivers at a Brazilian pediatric oncology hospital ...
Danyelle Apparecida Balsamão Marques, Mariana dos Santos Murra, Welinton Hirai, Ana Laura Balduino do Nascimento, Karla Emilia de Sá Rodrigues, Wilson Elias de Oliveira Junior   +5 more
wiley   +1 more source

Influence of Wind-Turbine-Generator Power Control on the Performance of a Virtual Synchronous Machine

Energies
Implementation of renewable energy sources (RESs) in power systems can reduce the dependence on fossil-fuel-based thermal power generation systems.
Dai Orihara, Hisao Taoka, Kenji Otani
doaj   +1 more source

Effectiveness of Resistance Intradialytic Exercise Compared to Aerobic Intradialytic Exercise for Patients With Chronic Kidney Disease: A Randomized Controlled Clinical Trial

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Patients with chronic kidney disease undergoing hemodialysis commonly experience reduced physical function, fatigue, poor sleep quality, and impaired health‐related quality of life. Intradialytic exercise has been proposed as a non‐pharmacological strategy to improve these outcomes.
Klebson da Silva Almeida, Gisela Cristiane Miyamoto, Daniel da Costa Torres, Ian Setubal Reis Chaves, Jonas do Carmo Paschoalin, Braúlio Lima Nascimento, Luciana Dias Chiavegato   +6 more
wiley   +1 more source

Virtual Inertia: Current Trends and Future Directions

Applied Sciences, 2017
The modern power system is progressing from a synchronous machine-based system towards an inverter-dominated system, with large-scale penetration of renewable energy sources (RESs) like wind and photovoltaics.
Ujjwol Tamrakar, Dipesh Shrestha, Manisha Maharjan, Bishnu P. Bhattarai, Timothy M. Hansen, Reinaldo Tonkoski   +5 more
doaj   +1 more source

Pulsed optically pumped Rb clock with high frequency stability performances

, 2011
In this paper we present a prototype of Rb clock working in pulsed regime with high freq stability performances. In particular, a frequency stability as low as 1.6×10-13τ -1/2 has been measured for integration times up to 105 s.
MICALIZIO, SALVATORE, AFFOLDERBACH C, LEVI, FILIPPO, CALOSSO, CLAUDIO ELIGIO, GODONE A, GRUET F., C. Affolderbach, S. Micalizio, C. E. Calosso, F. Gruet, A. Godone, F. Levi   +11 more
core   +1 more source

The Impact of Tenapanor on Body Composition and Blood Pressure in Peritoneal Dialysis Patients: A Pilot Study

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Instruction Tenapanor potentially affects fluid volume and blood pressure. This study explored its effects on these parameters in patients undergoing peritoneal dialysis (PD). Methods We conducted a single‐arm, prospective observational study that enrolled 10 patients on PD with hyperphosphatemia who were newly initiated on tenapanor.
Shun Yoshida, Kengo Asahina, Keiichi Osano, Natsumi Saegusa, Kohei Yamamura, Kie Ohkoshi, Miho Shikata, Toshihisa Ishii, Makiko Konishi, Kazuya Takahashi, Kohei Uchimura, Ayumu Nakashima   +11 more
wiley   +1 more source

Frequency control enhancement for hybrid microgrid using multi-terminal multi-function inverter

International Journal of Renewable Energy Development
Renewable energy sources (RESs) are considered a crucial energy transformation to reduce carbon emissions, so more RESs are being integrated into contemporary power systems. Power electronic converters are extensively utilized to connect power grids with
Doaa Eid, Said Elmasry, Adel El Samahy, Farag Elnagahy, Erhab Youssef   +4 more
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Bi-level unit commitment optimized dispatching model of power system with ‘source-load’ bilateral frequency regulation

Diance yu yibiao
In power systems with a high proportion of renewable energy generation (REGs) connected to the power grid, the problem of system inertia shortage, which significantly threatens the frequency stability of the system, is becoming increasingly serious ...
LIU Haitao, ZHU Kangkai, WANG Yuhao, ZHONG Cong, ZHANG Xiaocheng   +4 more
doaj   +1 more source