Results 81 to 90 of about 3,505,439 (294)

Grid Support with Wind Turbines: The Case of the 2019 Blackout in Flensburg

Energies, 2021
The work presented in this paper aims to show how modern wind turbines can help to control the frequency in a small grid which suffers from large power imbalances. It is shown for an exemplary situation, which occurred in Flensburg’s distribution grid in
Arne Gloe, Clemens Jauch, Thomas Räther
doaj   +1 more source

Exercise Interventions in Children, Adolescents and Young Adults With Paediatric Bone Tumours—A Systematic Review

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Bone tumours present significant challenges for affected patients, as multimodal therapy often leads to prolonged physical limitations. This is particularly critical during childhood and adolescence, as it can negatively impact physiological development and psychosocial resilience.
Jennifer Queisser, Claire Laurie, Teresa Schmidt, Irene von Luettichau, Peter Bekkering, Sabine Kesting   +5 more
wiley   +1 more source

Temporal Modulation of the Control Parameter in Electroconvection in the Nematic Liquid Crystal I52

, 2000
I report on the effects of a periodic modulation of the control parameter on electroconvection in the nematic liquid crystal I52. Without modulation, the primary bifurcation from the uniform state is a direct transition to a state of spatiotemporal chaos.
D. Walgraef, E. Bodenschatz, G. Ahlers, G. Ahlers, H. Riecke, H. Riecke, I. Rehberg, I. Rehberg, J.P. Gollub, J.P. Gollub, J.P. Gollub, K. T. Alligood, L. Kramer, L. Kramer, M. de la Torre Juáurez, M. Dennin, M. Dennin, M. Treiber, M. Treiber, M.C. Cross, Michael Dennin, S. Fauve, S. Kai, S. Rasenat, U. Finkenzeller   +24 more
core   +1 more source

A Research on Primary Frequency Control Strategy

DEStech Transactions on Engineering and Technology Research, 2017
There are the overshoot phenomena of the active power regulation in some regions, which goes against the reliability and the economics of the power system. The Strategy of primary frequency control is not reasonable for regulation. The influence of current primary frequency control strategy is discussed. A new strategy considering cooperation of AGC is
Xianbo MENG, Jianguo YAO, Feng LI
openaire   +2 more sources

A Comparative Study of Cerebral Oxygenation During Exercise in Hemodialysis and Peritoneal Dialysis Patients

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou, Konstantina Dipla, Danai Faitatzidou, Fotini Iatridi, Areti Georgiou, Artemios Karagiannidis, Erasmia Sampani, Chrysostomos Dimitriadis, Aggelos Koutlas, Andreas Zafeiridis, Pantelis Sarafidis   +10 more
wiley   +1 more source

Lessons Learnt from Modelling and Simulating the Bottom-Up Power System Restoration Processes

Energies, 2022
This paper aims to present the gained experience in modeling and simulating bottom-up power system restoration processes. In a system with low inertia, such as a restoration path, the Common Information Models for the regulation systems appear to no ...
Roberto Benato, Sebastian Dambone Sessa, Francesco Sanniti   +2 more
doaj   +1 more source

Periodicity and frequency coding in human auditory cortex [PDF]

, 2006
Understanding the neural coding of pitch and frequency is fundamental to the understanding of speech comprehension, music perception and the segregation of concurrent sound sources. Neuroimaging has made important contributions to defining the pattern of
Edmondson-Jones, AM, Fridriksson, J, Hall, DA   +2 more
core   +1 more source

Impact of frequency estimation for VSC-based devices with primary frequency control [PDF]

2017 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe), 2017
This paper presents a comparison of the performance of frequency control devices considering different techniques to estimate the frequency deviation signal. We consider three estimation techniques, namely the center of inertia (COI), the frequency divider (FD) formula, and the phase-locked loop (PLL).
Ortega, Alvaro, Milano, Federico
openaire   +1 more source

Intraoperative Collection of Ascitic Fluid With Intra‐ or Postoperative Reinfusion in Ovarian Cancer: Safety and Feasibility of a Roller Pumping Method

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Patients with ovarian cancer often present with massive ascites, leading to significant protein loss during surgical procedures. Although cell‐free concentrated ascites reinfusion therapy (CART) is used in palliative settings to mitigate protein loss, its application in intraoperative settings remains unexplored.
Yutaka Yoneoka, Tsukuru Amano, Akimasa Takahashi, Mari Deguchi, Hiroyuki Yamanaka, Yuji Tanaka, Shunichiro Tsuji, Takashi Murakami   +7 more
wiley   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source