Results 41 to 50 of about 54,005 (235)

A feasible and automatic free tool for T1 and ECV mapping [PDF]

, 2017
Purpose: Cardiac magnetic resonance (CMR) is a useful non-invasive tool for characterizing tissues and detecting myocardial fibrosis and edema. Estimation of extracellular volume fraction (ECV) using T1 sequences is emerging as an accurate biomarker in ...
Altabella, Luisa, Borrazzo, Cristian, Carbone, Iacopo, Carni', Marco, Catalano, Carlo, DI CASTRO, Elisabetta, Fiorelli, Andrea, Francone, Marco, Galea, Nicola   +8 more
core   +1 more source

Defect Analysis of the β– to γ–Ga2O3 Phase Transition

Advanced Functional Materials, EarlyView.
The role of defects at all the relevant stages of the β$\beta$‐ to γ$\gamma$‐Ga2O3 polymorph transition is investigated using a multi method approach. The positron annihilation spectroscopy based results show that the defect density decreases after the transition, and that changes in defect configuration within the γ phase occur with increasing ...
Umutcan Bektas, Maciej O. Liedke, Huan Liu, Fabian Ganss, Maik Butterling, Nico Klingner, René Hübner, Ilja Makkonen, Andreas Wagner, Gregor Hlawacek   +9 more
wiley   +1 more source

Enhancement of Electrical Parameter Extraction from Solar Cells Using a Hybrid Genetic Algorithm with the Levenberg-Marquardt Method [PDF]

E3S Web of Conferences
Accurate modeling and simulation of solar photovoltaic (PV) systems are critical for optimizing their performance and efficiency. This requires precise determination of electrical parameters of solar cells, such as photocurrent (Iph), saturation current (
Herbazi Rachid, Amechnoue Khalid, Chahboun Adil   +2 more
doaj   +1 more source

Integral-Based Identification of an Inhomogeneity Model in Respiratory Mechanics [PDF]

, 2012
4-pagesIndividualized models of respiratory mechanics may help to reduce potential harmful effects of ventilation therapy by predicting the outcome of certain ventilator settings.
Chase, J.G., Docherty, P.D., Möller, K., Schranz, C.   +3 more
core  

The geometry of nonlinear least squares with applications to sloppy models and optimization

, 2010
Parameter estimation by nonlinear least squares minimization is a common problem with an elegant geometric interpretation: the possible parameter values of a model induce a manifold in the space of data predictions.
A. Bakushinskii, Benjamin B. Machta, C. Igel, C. Misner, C. Rao, C. Rao, C. Udriste, D. Bates, D. Bates, D. Hilbert, E. Beale, H. Jeffreys, J. Hertz, J. Moré, J. Nocedal, J. Stoer, James P. Sethna, K. Levenberg, L. Eisenhart, L. Haines, M. Murray, M. Spivak, Mark K. Transtrum, P. Absil, R. Kass, R. Peeters, S. Amari, S. Smith, T. Ivancevic, W. Press   +29 more
core   +1 more source

Directed Functionalization of Recombinant Spider Silk Nonwoven Membranes with Antibodies Using Non‐Canonical Amino Acids

Advanced Materials, EarlyView.
A recombinant spider silk protein was functionalized by incorporating genetically encoded bio‐orthogonal reactive azido‐groups. The azido‐functionalized proteins were produced in a scalable biotechnological process, and particles, films, as well as nanofibers were established as anchorage for fully functional antibodies via site‐specific bio‐orthogonal
Claudia Lacombe, Charlotte Leonhardt, Martin Humenik, Birgit Wiltschi, Thomas Scheibel   +4 more
wiley   +1 more source

Prediction of SLM-NiTi transition temperatures based on improved Levenberg–Marquardt algorithm

Journal of Materials Research and Technology, 2021
In this study, we have obtained the corresponding relationship between SLM-NiTi alloy transition temperatures and energy density, and realized the accurate prediction and inverse prediction of SLM process parameters and NiTi alloy transition temperatures.
Zhenglei Yu, Zezhou Xu, Ruiyao Liu, Renlong Xin, Lunxiang Li, Lixin Chen, Pengwei Sha, Wanqing Li, Yining Zhu, Yunting Guo, Jiale Zhao, Zhihui Zhang, Luquan Ren   +12 more
doaj   +1 more source

Robust Radio Interferometric Calibration Using the t-Distribution [PDF]

, 2013
A major stage of radio interferometric data processing is calibration or the estimation of systematic errors in the data and the correction for such errors.
Kazemi, S., Yatawatta, S.
core   +3 more sources

Powder‐to‐Film Conversion of Nickel Single‐Atom Catalysts into Binder‐Free and Resistant Electrodes

Advanced Materials Interfaces, EarlyView.
A reproducible strategy is reported for fabricating standalone thin‐film electrodes composed of CNx‐supported Ni single‐atom catalysts. The resulting binder‐free electrodes exhibit robust stability, enhanced charge transfer, and superior electrochemical performance, offering scalable opportunities for applications in electrochemistry. ABSTRACT Although
Milla Vigliengo, Nicolò Allasia, Shuting Xiang, Yurii P. Ivanov, Riccardo Gulminelli, Martin Sterrer, Giorgio Divitini, Anatoly I. Frenkel, Gianvito Vilé   +8 more
wiley   +1 more source

Online Signature for Attendance Verification System using Levenberg-Marquardt Neural Network [PDF]

, 2015
This work focuses on the application of Levenberg-Marquardt based Back-propagation Neural Network for training features extracted from online signature images.
Adefuminiyi, Morakinyo A., Daramola, S. A., John, Temitope M.   +2 more
core   +1 more source