Results 221 to 230 of about 2,245,937 (307)

High Charge Carrier Mobility in Non‐Conjugated 3D Covalent Organic Frameworks

Advanced Materials, EarlyView.
A non‐conjugated 3D COF constructed via boronate ester linkages from tetraphenylene and pyrene‐based monomers is reported, which exhibits a high charge carrier mobility of 14 ± 1 cm2 V−1 s−1. ABSTRACT π‐Conjugation, π–π stacking, and long‐range order play a central role in determining charge transport efficiency in organic materials.
Joaquín Almarza, Karol Strutyński, Shuai Fu, Yifan Chen, Natalia M. Padial, Isabel del Barrio Gómez, Carlos Martí‐Gastaldo, Andrei N. Khlobystov, Mischa Bonn, Hai I. Wang, Manuel Melle‐Franco, Aurelio Mateo‐Alonso   +11 more
wiley   +1 more source

Changes in Functional Brain Activity in School-Age Children 10 Years Later: A Resting State Functional Magnetic Resonance Imaging Study. [PDF]

Psychiatry Investig
Li L, Ding Y, Chen L, Liu F, Ling Y, Lin R, Zhang W, Jiang K.   +7 more
europepmc   +1 more source

Wavelet-Based Health Monitoring Approach for Train Door Actuation Using Motor Current Analysis. [PDF]

Sensors (Basel)
Shiao Y, Gadde P, Bollepelly M.
europepmc   +1 more source

Associations among structural brain alterations, respiratory symptoms and cognitive impairment in patients with chronic obstructive pulmonary disease-related subclinical cognitive vulnerability: a multimodal neuroimaging study. [PDF]

Front Aging Neurosci
Wang C, Lin S, Zhao K, Zhan Y, Qiu Y, Peng K, Wang X, Lui S, Liu Y, Qiu S.   +9 more
europepmc   +1 more source

Assessment of a 40-year-old induction motor using hybrid diagnostic and AI-based predictive techniques. [PDF]

Sci Rep
Butukuri KR, Giri NC, Yemula PK, Penubaka RKKR, Vennila H, Das SR.   +5 more
europepmc   +1 more source

Clinical validation of defining characteristics of the NANDA-I nursing diagnosis "ineffective peripheral tissue perfusion" (00204) in patients with diabetic foot ulcers. [PDF]

Sci Rep
Beigzadeh S, Eshghi F, Zandi M.
europepmc   +1 more source

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Chaos control and characterization of brushless DC motor via integral and differential fractal-fractional techniques

International Journal of Modelling and Simulation, 2022
Although brushless DC motors have been preferably used in wide industrial applications on the basis of superior properties and stable operation, the stability of brushless DC motors is found to be dependent on their chaotic characteristics and initial ...
K. A. Abro, A. Atangana, J. F. Gómez‐Aguilar   +2 more
semanticscholar   +1 more source

Tuning of Digital PID Controllers Using Particle Swarm Optimization Algorithm for a CAN-Based DC Motor Subject to Stochastic Delays

IEEE transactions on industrial electronics (1982. Print), 2020
In this article, we investigate the tuning problem of digital proportional-integral-derivative (PID) parameters for a dc motor controlled via the controller area network (CAN).
Zhi Qi, Qian Shi, Hui Zhang
semanticscholar   +1 more source

PID Speed Control of DC Motor Using Harris Hawks Optimization Algorithm

2020 International Conference on Electrical, Communication, and Computer Engineering (ICECCE), 2020
This paper demonstrates the application of Harris hawks optimization (HHO) algorithm to tune a PID controller for speed regulation of a DC motor. The proposed technique was used to obtain optimal parameters of PID controller by minimizing the integral of
S. Ekinci, Davut Izci, B. Hekimoğlu
semanticscholar   +1 more source

Commutation of DC Motors

IEEE Industry Applications Magazine, 2010
The information presented here is generally known to dc motor manufacturers but is not common knowledge to dc motor users. As there is a necessity for the equipment to perform beyond its original specifications and adjustment, commutation issues may arise that could increase maintenance requirements or downtime.
Richard Hall, Walter Konstanty
openaire   +1 more source