Results 51 to 60 of about 4,165,103 (293)

Serum Myonectin Levels Are Positively Associated With Physical Function and Lower Frailty‐Related Limitation in Maintenance Hemodialysis Patients: A Cross‐Sectional Study

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Maintenance hemodialysis (MHD) patients frequently suffer from frailty, characterized by reduced physical function and poor prognosis. Myokines, such as myonectin, secreted by muscle, are emerging regulators of systemic health. This study investigated the relationship between serum myonectin, adipokines (adiponectin, omentin), and ...
Kenichi Kono   +7 more
wiley   +1 more source

PLC-Based Pressure Control in Multi-Pump Applications

open access: yesElectrical, Control and Communication Engineering, 2015
The paper is devoted to the centrifugal pumps represented the most popular type of pumping equipment used in different areas. The pressure control approach for variable speed driven (VSD) parallel connected centrifugal pumps is reported.
Vodovozov Valery   +2 more
doaj   +1 more source

AI Energy Optimal Strategy on Variable Speed Drives for Multi-Parallel Aqua Pumping System

open access: yesEnergies, 2022
In the industrial world, parallel pump systems are frequently employed. Due to various reasons, the pumps are frequently operated outside their intended parameters, which reduces their efficiency and performance.
Manickavel Baranidharan   +1 more
doaj   +1 more source

Comparative Evaluation of Hemodiafiltration, Hemoperfusion, and Standard Hemodialysis on Efficacy, Inflammatory Control, Dialysis Adequacy, and Safety in End‐Stage Renal Disease: A Prospective Observational Study

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic micro‐inflammation in patients with end‐stage renal disease (ESRD) is a significant driver of cardiovascular complications and diminished quality of life. While standard hemodialysis (SHD) effectively manages small‐molecule clearance, its ability to remove medium‐to‐large uremic toxins—the primary catalysts of systemic ...
Hongwei Zuo   +5 more
wiley   +1 more source

Unified Direct-Flux Vector Control for AC motor drives [PDF]

open access: yes, 2010
The paper introduces a Unified Direct-Flux Vector Control scheme suitable for sinusoidal AC motor drives. The AC drives considered here are Induction Motor, Synchronous Reluctance and synchronous Permanent Magnet motor drives, including Interior and ...
R. Bojoi   +7 more
core   +1 more source

A General Vector Control Scheme for Induction Motor Drives

open access: yesThe Journal of Engineering
The performance of vector control (VC) methods for induction motors (IMs) mainly depends on the motor model. To control 3‐phase IMs (3IMs), single‐phase IMs with two different windings (2IMs), and star‐connected 3IMs under an open‐phase fault (FIMs ...
Haniyesadat Fatemigarakani   +2 more
doaj   +1 more source

Library of Samples for E-Vehicle Propulsion Drive Tuning

open access: yesElectrical, Control and Communication Engineering, 2014
The majority of testing cycles for the vehicle comparison is the long-term cycles and could not be used for the short-term transient mode imitations. Also, all the used nowadays testing cycles were designed for internal combustion engine vehicles and ...
Rassõlkin Anton   +3 more
doaj   +1 more source

Review of variable speed drive technology in beam pumping units for energy-saving

open access: yesEnergy Reports, 2020
Beam pumping units have been widely used in oilfields worldwide due to its simple structure, strong field adaptability, and convenient maintenance. Different energy-saving technologies have also been broadly applied in various beam pumping units.
Chaodong Tan   +6 more
doaj   +1 more source

An Enhanced $dq$-Based Vector Control System for Modular Multilevel Converters Feeding Variable-Speed Drives

open access: yesIEEE transactions on industrial electronics (1982. Print), 2017
Modular multilevel converters (M$^{\text{2}}$ C) are considered an attractive solution for high power drive applications. However, energy balancing within the converter is complex to achieve, particularly when the machine is operating at low rotational ...
Mauricio Espinoza   +3 more
semanticscholar   +1 more source

Forecasting the Dialysis Burden in Japan: Validation‐Based Projections of Prevalence and Incidence Through 2050

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Japan has one of the highest dialysis prevalence rates worldwide and a shrinking, aging population. Whether dialysis burden has entered a sustained post‐peak phase or whether recent declines partly reflect pandemic‐related disruptions remains uncertain.
Hatice Şahin   +2 more
wiley   +1 more source

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