Results 81 to 90 of about 636,624 (317)

Therapeutic Apheresis in Nigeria: A Multi‐Center Summary of Abstracts From the Inaugural Nigerian Society for Apheresis Scientific Meeting

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Therapeutic apheresis (TA) is an established treatment modality for hematologic, neurologic, and immunologic disorders, yet access remains severely limited in sub‐Saharan Africa. Donor apheresis, including platelet apheresis collection from healthy donors, represents an important complementary modality supporting blood product ...
Nosa Bazuaye   +33 more
wiley   +1 more source

Optimal Cooperative Management of Energy Storage Systems to Deal with Over- and Under-Voltages

open access: yesEnergies, 2017
This paper presents an optimal cooperative voltage control approach, which coordinates storage units in a distribution network. This technique is developed for storage systems’ active power management with a local strategy to provide robust voltage ...
Ghassem Mokhtari   +4 more
doaj   +1 more source

Security constrained reactive power dispatch in electrical power systems [PDF]

open access: yes, 1990
With the increased loading and exploitation of the power transmission system and also due to improved optimised operation, the problem of voltage stability and voltage collapse attracts more and more attention .
Chebbo, Ahmad Mustapha
core  

Effectiveness of a Novel Low‐Density Lipoprotein Apheresis Device Rheocarna in Patients Undergoing Hemodialysis With Chronic Limb‐Threatening Ischemia: A Single‐Center Retrospective Study

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic limb‐threatening ischemia (CLTI) is a severe form of lower‐extremity artery disease characterized by distal lesions and microcirculatory impairment, limiting revascularization efficacy. Rheocarna is a direct hemoperfusion low‐density lipoprotein (LDL) adsorption device with potential rheological and anti‐inflammatory ...
Kunihiro Ishioka   +12 more
wiley   +1 more source

Design of the fuzzy PI control system for load voltage in hybrid distribution transformer

open access: yesThe Journal of Engineering, 2018
Hybrid distribution transformer (HDT) is a novel transformer that has a powerful control on grid current and load voltage, and it is significant for the construction of the smart grid. The load voltage control is the key part in HDT control system. Here,
Mingkang Zhang   +3 more
doaj   +1 more source

Modelling, evaluation and demonstration of novel active voltage control schemes to accomodate distributed generation in distribution networks

open access: yes, 2010
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Voltage control in distribution networks is becoming more challenging due to the growing amount of distributed generation that is being connected to the ...
Fila, Maciej
core  

Modified phase-shifted PWM control for flying capacitor multilevel converters

open access: yes, 2007
The issue of voltage imbalance remains a challenge for the flying capacitor multilevel converter. The phase-shifted pulsewidth modulation (PS-PWM) method has a certain degree of self-balancing properties.
Chunmei Feng   +5 more
core   +1 more source

Prognosis of Long‐Term Continuous Renal Replacement Therapy and the Impact of Combined Continuous Intravenous Sodium Infusion Therapy

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Patients requiring long‐term continuous renal replacement therapy (CRRT) generally have poor prognoses. This study evaluated whether adding continuous intravenous sodium infusion (cIVNa) is associated with improved hemodynamics and outcomes in patients undergoing long‐term CRRT for ≥ 7 days.
Akinori Yamaguchi   +6 more
wiley   +1 more source

Basic Circuit Model of Voltage Source Converters: Methodology and Modeling

open access: yesAppliedMath
Voltage source converters (VSCs) have emerged as the key components in modern power systems, facilitating efficient energy conversion and flexible power flow control.
Christian Bipongo Ndeke   +2 more
doaj   +1 more source

Voltage Support Provided by STATCOM in Unbalanced Power Systems

open access: yesEnergies, 2014
The presence of an unbalanced voltage at the point of common coupling (PCC) results in the appearance of a negative sequence current component that deteriorates the control performance.
Ana Rodríguez   +4 more
doaj   +1 more source

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