Results 71 to 80 of about 1,966,146 (289)

What is an adequate sample size? Operationalising data saturation for theory-based interview studies [PDF]

open access: yes, 2010
In interview studies, sample size is often justified by interviewing participants until reaching “data saturation”. However, there is no agreed method of establishing this.
Eccles, M. P.   +17 more
core   +1 more source

Omnipolar Magnetic Field Detection by Superlattice‐Based Hall Sensor

open access: yesAdvanced Functional Materials, EarlyView.
Magnetic‐field‐induced electronic switching is demonstrated in unit‐cell‐engineered La0.7Sr0.3MnO3–BiFeO3 superlattices. Distinct substrate terminations modify magnetic and transport properties. Hall resistance measurements show omnipolar, hysteretic anomalous Hall switching above the Curie temperature, arising from Fe─Mn interfacial exchange, enabling
Mark Huijben   +6 more
wiley   +1 more source

Adding effect of current displacement and magnetic circuit saturation in an asynchronous motor mathematical model

open access: yesElectrical engineering & Electromechanics, 2014
A methodology of an asynchronous motor mathematical model synthesis is described. Experiments are suggested to be conducted in the following sequence.
I.A. Tsodik, K.V. Hudobin
doaj  

Numerical Calculation Method and Accuracy Analysis of Time-Varying Data of Reluctance Coil Launcher

open access: yesIEEE Access
The analysis of the reluctance coil launcher (RCL) basically relies on the finite element method (FEM), but the method is time-consuming and does not meet the real-time requirements for control, which seriously hampers the expansion of engineering ...
Mengkun Lu   +3 more
doaj   +1 more source

Saturation

open access: yes, 2019
AA saturationPCGs_N ...
Xi Luo (7550552), Gengyun Niu (665680)
core   +1 more source

Effect of the PEG functionalization on the saturation magnetization of magnetic nanoporous core-shell nanoparticles

open access: yes, 2022
The treatment of implant-associated infection is still a considerable issue in modern orthopaedical surgery. A promising candidate to improve this are superparamagnetic, drug loaded nanoparticles in combination with a magnetizable implant and an external
Schierz, Arne Klaus   +6 more
core   +1 more source

Quantifying Subsurface Weak in‐Plane Magnetization of Mixed Phase BiFeO3 by Scanning Nitrogen Vacancy Magnetometry

open access: yesAdvanced Functional Materials, EarlyView.
We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang   +14 more
wiley   +1 more source

Implantable Ionic Memristors Based on Natural Polymer Heterojunctions

open access: yesAdvanced Functional Materials, EarlyView.
We report an implantable natural polymer‐based ionic memristor composed of hyaluronic acid, chitosan, and PDMS. The device achieved 98.94% accuracy in MNIST classification while reducing training time by 36.8% compared with a conventional artificial neural network (ANN).
Dong‐yup Lee   +6 more
wiley   +1 more source

Influence of magnetic saturation in inhomogeneous magnetic field.

open access: yesJournal of the Mass Spectrometry Society of Japan, 1990
The field distribution of an inhomogeneous magnetic field in the conical pole gap is calculated considering the influence of magnetic saturation of pole material. Magnetic fields corresponding to the ideal n-values of -1.5 and -2 are calculated for various different field strengths. The results show that the distortion due to the magnetic saturation is
openaire   +2 more sources

Semiconducting Polymers Post‐Functionalized With Ureido‐Pyrimidinone for Robust Stretchable Transistors

open access: yesAdvanced Functional Materials, EarlyView.
The design of intrinsically robust stretchable semiconducting polymers was achieved through OTBS‐mediated post‐functionalization of PDPP2T side chains with UPy units, generating dual hydrogen‐bonding motifs comprising weaker urethane linkages and strong quadruple UPy interactions along the long alkyl side chain, which is crucial for achieving desirable
Dinda Bazliah   +7 more
wiley   +1 more source

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