Results 71 to 80 of about 96,232 (310)

Performance Comparison of PI Control and Fuzzy Logic for Speed Control of DC Shunt Motor Using Matlab / Simulink

open access: yesJAREE (Journal on Advanced Research in Electrical Engineering), 2020
DC motor speed regulation is an important role in the industrial process so it can run easily and efficiently. A good DC motor speed control system must have a fast and accurate response.
Jehan Aliyya   +2 more
doaj   +1 more source

Fluid Biomarkers of Disease Burden and Cognitive Dysfunction in Progressive Supranuclear Palsy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Identifying objective biomarkers for progressive supranuclear palsy (PSP) is crucial to improving diagnosis and establishing clinical trial and treatment endpoints. This study evaluated fluid biomarkers in PSP versus controls and their associations with regional 18F‐PI‐2620 tau‐PET, clinical, and cognitive outcomes.
Roxane Dilcher   +10 more
wiley   +1 more source

The electromagnetic performance of brushless permanent magnet DC motors - with particular reference to noise and vibration. [PDF]

open access: yes, 1991
A comprehensive analytical technique is developed for predicting the instantaneous magnetic field distribution in radial-field, surface-mounted permanent magnet brushless DC motors under any load condition and commutation strategy.
Zhu, Zi-Qiang
core  

Innate Immune Reprogramming Mediated by Endogenous Retroelement Dysregulation Drives Multiple Sclerosis Progression

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
Epigenetic reprogramming in hematopoietic stem and progenitor cells (HSPCs) and downstream myeloid cells, mediated by H3.3 downregulation and endogenous retroelement (ERE) overexpression, contributes to the progression of multiple sclerosis (MS). ABSTRACT Background Skewed myelopoiesis in the bone marrow has been identified as a key driver of multiple ...
Li‐Mei Xiao   +6 more
wiley   +1 more source

Demo 20-09 DC Motor

open access: yes, 2001
The DC motor illustrated in this demonstration uses a DC voltage on a coil that rotates in a magnetic field provided by a group of magnets, as shown in Figure 1.

core  

Feasibility of high frequency alternating current power distribution for the automobile auxiliary electrical system [PDF]

open access: yes, 2011
This study investigates the feasibility and potential benefits of high frequency alternating current (HFAC) for vehicle auxiliary electrical systems. A 100Vrms, 50kHz sinusoidal AC bus is compared with 14V DC and 42V DC electrical systems in terms of ...
Antaloae, C. C.
core  

Torque prediction using the flux-MMF diagram in AC, DC, and reluctance motors [PDF]

open access: yes, 1996
This paper uses the flux-MMF diagram to compare and contrast the torque production mechanism in seven common types of electric motor. The flux-MMF diagram is a generalized version of the flux-linkage versus current (ψ-i) diagram for switched-reluctance ...
Deodhar, R.P.   +3 more
core   +1 more source

Diseño e implementación de un módulo didáctico de un Drive Troceador para el control de una máquina de DC en cuatro cuadrantes destinado al Laboratorio de Control Eléctrico y PLC’s

open access: yesMaskay, 2011
En el laboratorio de Control Eléctrico y PLC´s se realizó un análisis de reconocimiento de los módulos didácticos, observando que no dispone de un módulo troceador DC/DC para el control de un motor DC en 4 cuadrantes.
Ismael Guamani, Marcelo Silva
doaj   +1 more source

Sex Representation in US Stroke Clinical Trials: A Decade of Trends and Challenges

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Stroke remains a major cause of disability and mortality in the US, with significant sex‐based disparities, and females remain underrepresented in stroke clinical trials. We aimed to examine sex representation in US‐based stroke clinical trials, identify trial characteristics associated with higher female enrollment (≥ 50%), and ...
Chaitali Dagli   +5 more
wiley   +1 more source

Modelling control of dc motor

open access: yes, 2013
This project present the design and simulation of the position control of a DC Motor. The DC motor type has been chosen is Brushed Direct Current (BDC) motor. The proposed systems used in this project are PID and state feedback. Firstly, the mathematical
Md. Ayob, Norazuin
core  

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