Results 1 to 10 of about 1,010,866 (217)

Computation of distribution of relaxation times by Tikhonov regularization for Li ion batteries: usage of L-curve method [PDF]

open access: yesScientific Reports, 2021
In this paper, the distribution of relaxation times (DRTs) functions are calculated numerically in Matlab for synthetic impedance data from single parallel $$RC$$ RC circuit and two parallel $$RC$$ RC circuits connected in series, experimental impedance ...
T. Paul   +3 more
doaj   +2 more sources

Determination of Smoothing Factor for the Inversion of Co-seismic Slip Distribution [PDF]

open access: yesJournal of Geodesy and Geoinformation Science, 2020
For the determination of the smoothing factor (also known as the regularization parameter) in the co-seismic slip distribution inversion, the compromise curve between the model roughness and the data fitting residual is generally used to determine (in ...
Leyang WANG,Xiong ZHAO
doaj   +1 more source

An Improved Tikhonov-Regularized Variable Projection Algorithm for Separable Nonlinear Least Squares

open access: yesAxioms, 2021
In this work, we investigate the ill-conditioned problem of a separable, nonlinear least squares model by using the variable projection method. Based on the truncated singular value decomposition method and the Tikhonov regularization method, we propose ...
Hua Guo, Guolin Liu, Luyao Wang
doaj   +1 more source

Determination of uric acid in human serum by an enzymatic method using N-methyl-N-(4-aminophenyl)-3-methoxyaniline reagent [PDF]

open access: yesJournal of the Serbian Chemical Society, 2003
In this work a new enzymatic method for the determination of uric acid in human serum has been developed. The method is based on the oxidative coupling reaction between the N-methyl-N-(4-aminophenyl)-3-methoxyaniline (NCP) reagent and the hydrogen ...
Jelikić-Stankov Milena D.   +2 more
doaj   +3 more sources

Determination of the Regularization Parameter to Combine Heterogeneous Observations in Regional Gravity Field Modeling

open access: yesRemote Sensing, 2020
Various types of heterogeneous observations can be combined within a parameter estimation process using spherical radial basis functions (SRBFs) for regional gravity field refinement.
Qing Liu   +3 more
doaj   +1 more source

Establishment of a Nomogram Model for Predicting Cardiovascular and Cerebrovascular Events in Diabetic Nephropathy Patients Receiving Maintenance Hemodialysis

open access: yesApplied Bionics and Biomechanics, 2022
Objective. The objective of this study is to explore the risk factors of cardiovascular and cerebrovascular events (CCE) in patients with diabetic nephropathy (DN) receiving maintenance hemodialysis, and to establish a nomogram model on this basis ...
Xiaobing Liu   +3 more
doaj   +1 more source

Regularized Cubic B-Spline Collocation Method With Modified L-Curve Criterion for Impact Force Identification

open access: yesIEEE Access, 2020
The time history of the impact force, especially for the peak force, is vital to monitor the performance of mechanical products over the life-time. However, considering the limitation of sensing technology and inaccessibility of installing, it is always ...
Jie Liu   +3 more
doaj   +1 more source

Application of Melting Temperature in Melting Curve of qPCR to Determine Listeria monocytogenes Presence in Golden Needle Mushroom

open access: yesJournal of Food Quality, 2022
This study developed a method to determine Listeria monocytogenes presence in golden needle mushrooms by melting temperature (Tm) in a melting curve of qPCR. For identical samples (n = 35), the results for L.
Yeongeun Seo   +3 more
doaj   +1 more source

Different Mathematical Spectrophotometric Methods for Determination of Ampyrone in Presence of Its Acid Degradation Product

open access: yesAl-Mustansiriyah Journal of Science, 2020
Three simple spectrophotometric methods namely; area under the curve, simultaneous equation method, and modified simultaneous equation method was developed and validated for the determination of Ampyrone with the presence of its acidic product using zero-
Ruba Fahmi Abbas
doaj   +1 more source

A new approach for investigating the relative contribution of basal glucose and postprandial glucose to HbA1C

open access: yesNutrition & Diabetes, 2021
To develop an accurate method for evaluating the relative contributions of basal glucose (BG) and postprandial glucose (PPG) to glycated haemoglobin (HbA1c) in subjects with hyperglycaemia using a Continuous Glucose Monitoring System (CGMS®).
Jing Ma   +11 more
doaj   +1 more source

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