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1. Correction to: Evaluation of accuracy dependence of Raman spectroscopic models on the ratio of calibration and validation points for non-invasive glucose sensing

Author:
Singh, Surya P.; Mukherjee, Soumavo; Galindo, Luis H.; So, Peter T. C.; Dasari, Ramachandra Rao; Khan, Uzma Zubair; Kannan, Raghuraman; Upendran, Anandhi; Kang, Jeon Woong
Source:
Analytical and bioanalytical chemistry 2019 v.411 no.6 pp. 1297
ISSN:
1618-2642
Subject:
calibration,   etc   ; glucose; models; spectroscopy;     Show all 4 Subjects
Abstract:
... The authors would like to bring to the reader’s attention that the Clarke error grid plot presented in Fig. 3 was generated using codes adapted from following reference. ...
DOI:
10.1007/s00216-018-1542-4

2. Calibration: Detection, Quantification, and Confidence Limits Are (Almost) Exact When the Data Variance Function Is Known

Author:
Tellinghuisen, Joel
Source:
Analytical chemistry 2019 v.91 no.14 pp. 8715-8722
ISSN:
1520-6882
Subject:
calibration,   etc   ; least squares; models; variance;     Show all 4 Subjects
Abstract:
... Inverse variance weighting ensures optimal parameter estimation in least-squares fitting, with exact parameter standard errors for linear least-squares with known data variance. In this Feature, I emphasize the virtues of numerical methods for estimating data variance functions and for determining these limits for any calibration model, linear or nonlinear. ...
DOI:
10.1021/acs.analchem.9b00119

3. Baseflow Separation – A Practical Approach

Author:
Duncan, Hugh P.
Source:
Journal of hydrology 2019
ISSN:
0022-1694
Subject:
calibration,   etc   ; automation; base flow; separation;     Show all 4 Subjects
Abstract:
... The satisfactory separation of baseflow from the other components of streamflow has long been a desirable but elusive goal. In the search for consistent and automated baseflow separation techniques, direct applicability to physical processes has been increasingly neglected. By way of contrast, this paper presents a continuous baseflow separation method that emphasises the physical relevance of the ...
DOI:
10.1016/j.jhydrol.2019.05.040

4. The correlation between regression coefficients: combined significance testing for calibration and quantitation of bias

Author:
Analytical Methods Committee AMCTB No 87,
Source:
Analytical methods 2019 v.11 no.14 pp. 1845-1848
ISSN:
1759-9679
Subject:
calibration,   etc   ; analytical methods; regression analysis;     Show all 3 Subjects
Abstract:
... In the analytical sciences regression methods have two main uses – in calibrations in instrumental analysis, and in testing for bias in method comparison studies. In first order (straight line) regression the true values of the intercept α and the slope β are independent of each other but their estimated values  and  are not independent. This can be appreciated visually by considering the straig ...
DOI:
10.1039/c9ay90041a

5. A guide for proper utilisation of stable isotope reference materials

Author:
Meier-Augenstein, Wolfram; Schimmelmann, Arndt
Source:
Isotopes in environmental and health studies 2019 v.55 no.2 pp. 113-128
ISSN:
1477-2639
Subject:
calibration,   etc   ; reference standards; stable isotopes;     Show all 3 Subjects
Abstract:
... Many scientific publications about stable isotope ratios suffer from flawed practices regarding calibration and normalisation of raw δ values in conjunction with prescribed δ values of reference materials. Violations of the identical treatment principle with regards to samples and standards (i.e. reference materials) and lack of adherence to SI-mandated and IUPAC-recommended nomenclature exacerbat ...
DOI:
10.1080/10256016.2018.1538137

6. Impact of faults on the efficiency curve of flat plate solar collectors: a numerical analysis

Author:
Faure, Gaëlle; Vallée, Mathieu; Paulus, Cédric; Tran, Tuan Quoc
Source:
Journal of cleaner production 2019 v.231 pp. 794-804
ISSN:
0959-6526
Subject:
calibration,   etc   ; heat; mathematical models; solar collectors;     Show all 4 Subjects
Abstract:
... Thermal solar energy is one of the promising cleaner ways to produce heat. In particular, large scale solar thermal systems (LSTS) can produce low-cost heat for use in district heating networks or industrial processes. However, return on investment is based to long-term reliable operation, and automatically detecting dysfunctions is desirable in these systems. Existing fault detection and diagnosi ...
DOI:
10.1016/j.jclepro.2019.05.122

7. Continuous online process analytics with multiplexing gas chromatography by using calibrated convolution matrices

Author:
Wunsch, Marco R.; Reiter, Alexander M.C.; Schuster, Felix S.; Lehnig, Rudolf; Trapp, Oliver
Source:
Journal of chromatography 2019 v.1595 pp. 180-189
ISSN:
0021-9673
Subject:
calibration,   etc   ; chemical analysis; gas chromatography; quantitative analysis;     Show all 4 Subjects
Abstract:
... The development of fast and precise measurement techniques for process analytical technology is important to operate chemical processes safely and efficiently. For quantitative measurements of multiple components at a trace level, often gas chromatographic methods are used which have a response time of several minutes or of up to one hour. For fast changing processes, this can be too slow for effi ...
DOI:
10.1016/j.chroma.2019.02.034

8. A comprehensive working state monitoring method for power battery packs considering state of balance and aging correction

Author:
Wang, Shun-Li; Fernandez, Carlos; Zou, Chuan-Yun; Yu, Chun-Mei; Chen, Lei; Zhang, Li
Source:
Energy 2019 v.171 pp. 444-455
ISSN:
0360-5442
Subject:
calibration,   etc   ; algorithms; lithium batteries; models; monitoring;     Show all 5 Subjects
Abstract:
... A comprehensive working state monitoring method is proposed to protect the power lithium-ion battery packs, implying accurate estimation effect but using minimal time demand of self-learning treatment. A novel state of charge estimation model is conducted by using the improved unscented Kalman filtering method, in which the state of balance and aging process correction is considered, guaranteeing ...
DOI:
10.1016/j.energy.2019.01.020

9. High-Precision Measurements of the Isotopic Composition of Common Lead Using MC-ICPMS: Comparison of Calibration Strategies Based on Full Gravimetric Isotope Mixture and Regression Models

Author:
Tong, Shuoyun; Meija, Juris; Zhou, Lian; Methven, Brad; Mester, Zoltán; Yang, Lu
Source:
Analytical chemistry 2019 v.91 no.6 pp. 4164-4171
ISSN:
1520-6882
Subject:
calibration,   etc   ; isotopes; lead; regression analysis; thallium;     Show all 5 Subjects
Abstract:
... The determination of isotope ratios of lead finds many important applications in earth and planetary sciences. In this study, we report the first independent and fully calibrated absolute isotope ratio measurements of a common lead since the seminal work by the NIST in the 1960s, which has provided the widely used standards SRM 981 and SRM 982. This work employs MC-ICPMS for the absolute isotope r ...
DOI:
10.1021/acs.analchem.9b00020

10. Mass Difference Maps and Their Application for the Recalibration of Mass Spectrometric Data in Nontargeted Metabolomics

Author:
Smirnov, Kirill S.; Forcisi, Sara; Moritz, Franco; Lucio, Marianna; Schmitt-Kopplin, Philippe
Source:
Analytical chemistry 2019 v.91 no.5 pp. 3350-3358
ISSN:
1520-6882
Subject:
calibration,   etc   ; algorithms; blood plasma; mass spectrometry; metabolomics;     Show all 5 Subjects
Abstract:
... Modern high-resolution mass spectrometry provides the great potential to analyze exact masses of thousands of molecules in one run. In addition, the high instrumental mass accuracy allows for high-precision formula assignments narrowing down tremendously the chemical space of unknown compounds. The adequate values for a mass accuracy are normally achieved by a proper calibration procedure that usu ...
DOI:
10.1021/acs.analchem.8b04555

11. A new multivariate standard addition strategy for stripping voltammetric electronic tongues: Application to the determination of Tl(I) and In(III) in samples with complex matrices

Author:
Pérez-Ràfols, Clara; Puy-Llovera, Jaume; Serrano, Núria; Ariño, Cristina; Esteban, Miquel; Díaz-Cruz, José Manuel
Source:
Talanta 2019 v.192 pp. 147-153
ISSN:
0039-9140
Subject:
calibration,   etc   ; chemical species; electronic tongue; indium;     Show all 4 Subjects
Abstract:
... A new multivariate standard addition strategy applicable to stripping methods was proposed as an extention of the classical univariate standard addition method for the resolution of complex samples involving overlapped peaks and complex matrices. The proposed strategy consists in alternate additions of the considered analytes and the further extrapolation to a simulated blank solution measured by ...
DOI:
10.1016/j.talanta.2018.09.035

12. On-board radiometric calibration for thermal emission band of FY-3C/MERSI

Author:
Liu, Q. S.; Tang, Y. H.; Qin, L.; Dai, H. S.; Zhao, Q. C.; Yang, Y.
Source:
International journal of remote sensing 2019 v.40 no.1 pp. 1-14
ISSN:
1366-5901
Subject:
calibration,   etc   ; algorithms; radiometry; remote sensing; satellites; temperature;     Show all 6 Subjects
Abstract:
... On-board radiometric calibration is the most efficient method to improve the measurement accuracy of satellite-borne sensors. Chinese Medium Resolution Spectral Imager (MERSI), loaded on the Fengyun-3C (FY-3C) satellite, uses one satellite-borne fixed-temperature blackbody (BB) for its thermal emission band’s (TEB) radiometric calibration, but its optimal calibration algorithm is not determined. B ...
DOI:
10.1080/01431161.2017.1339929

13. Easy calibration of the Light Plate Apparatus for optogenetic experiments

Author:
Sweeney, Kieran; Moreno Morales, Neydis; Burmeister, Zachary; Nimunkar, Amit J.; McClean, Megan N.
Source:
MethodsX 2019 v.6 pp. 1480-1488
ISSN:
2215-0161
Subject:
calibration,   etc   ; light intensity; lighting; optogenetics; proteins;     Show all 5 Subjects
Abstract:
... Optogenetic systems use genetically-encoded light-sensitive proteins to control and study cellular processes. As the number and quality of these systems grows, there is an increasing need for user-friendly and flexible hardware to provide programmed illumination to cultures of cells. One platform which satisfies this need for a variety of optogenetic systems and organisms is the Light Plate Appara ...
DOI:
10.1016/j.mex.2019.06.008

14. Improved methods for nanoindentation Berkovich probe calibrations using fused silica

Author:
Jakes, JosephE.
Source:
Journal of materials science 2018 v.53 no.7 pp. 4814-4827
ISSN:
0022-2461
Subject:
calibration,   etc   ; compliance; silica;     Show all 3 Subjects
Abstract:
... Improved methods are needed to improve the reliability and reporting of Berkovich probe calibrations. Current methods for calibrating machine compliance rely substantially on the subjectivity of the user to choose and exclude from the analysis nanoindentations below a threshold size that are affected by probe tip imperfections or the fused silica surface properties. Furthermore, it can be difficul ...
DOI:
10.1007/s10853-017-1922-8

15. Precision mapping the topological bands of 2D spin-orbit coupling with microwave spin-injection spectroscopy

Author:
Xu, Xiao-Tian; Yi, Chang-Rui; Wang, Bao-Zong; Sun, Wei; Deng, Youjin; Liu, Xiong-Jun; Chen, Shuai; Pan, Jian-Wei
Source:
Science bulletin 2018
ISSN:
2095-9273
Subject:
calibration,   etc   ; spectral analysis; spectroscopy; topology;     Show all 4 Subjects
Abstract:
... To investigate the band structure is one of the key approaches to study the fundamental properties of a novel material. We report here the precision band mapping of a 2-dimensional (2D) spin-orbit (SO) coupling in an optical lattice. By applying the microwave spin-injection spectroscopy, the band structure and spin-polarization distribution are achieved simultaneously. The band topology is also ad ...
DOI:
10.1016/j.scib.2018.11.002

16. Detection of 1 zmol injection of angiotensin using capillary zone electrophoresis coupled to a Q-Exactive HF mass spectrometer with an electrokinetically pumped sheath-flow electrospray interface

Author:
Amenson-Lamar, Emily Ann; Sun, Liangliang; Zhang, Zhenbin; Bohn, Paul W.; Dovichi, Norman J.
Source:
Talanta 2019 v.204 pp. 70-73
ISSN:
0039-9140
Subject:
calibration,   etc   ; capillary zone electrophoresis; ions; mass spectrometry; monitoring; spectrometers;     Show all 6 Subjects
Abstract:
... An electrokinetically pumped sheath-flow nanoelectrospray interface provides an efficient means of transferring ions from a capillary electrophoresis system into a mass spectrometer. To characterize its performance, we analyzed angiotensin solutions prepared in a background of 0.25 mg/mL of a BSA tryptic digest. Calibration curves were prepared from 10 zmol (10−21 mol) to 10 fmol (10−14 mol) of an ...
DOI:
10.1016/j.talanta.2019.05.079

17. A rapid on-line non-chromatographic hydride generation atomic fluorescence spectrometry technique for speciation of inorganic arsenic in drinking water

Author:
Alp, Orkun; Tosun, Gokce
Source:
Food chemistry 2019 v.290 pp. 10-15
ISSN:
0308-8146
Subject:
calibration,   etc   ; arsenic; atomic absorption spectrometry; detection limit; drinking water; hydrides;     Show all 6 Subjects
Abstract:
... A rapid on-line non-chromatographic hydride generation atomic fluorescence spectrometry is described and determination of inorganic arsenic (iAs (III) and iAs (V)) species is achieved within a single run. Thioglycolic acid (TGA) was used for on-line pre-reduction of iAs (V) and quantification of arsenic species was accomplished via calibration with one As form; as iAs (III). Samples and calibratio ...
DOI:
10.1016/j.foodchem.2019.03.119

18. Automatic on-orbit geometric calibration framework for geostationary optical satellite imagery using open access data

Author:
Dong, Yang; Fan, Dazhao; Ma, Qiuhe; Ji, Song; Ouyang, Huan
Source:
International journal of remote sensing 2019 v.40 no.16 pp. 6154-6184
ISSN:
1366-5901
Subject:
calibration,   etc   ; geometry; image analysis; remote sensing; satellites; spatial data;     Show all 6 Subjects
Abstract:
... Due to a variety of factors, long-term on-orbit geometric calibrations must be performed on the geostationary optical satellite to meet the subsequent high-precision geometric processing requirements. Designing a fully automatic on-orbit geometric inspection and calibration process has great application value. In this paper, we use open-access geographic information data to achieve a more robust a ...
DOI:
10.1080/01431161.2019.1587206

19. In-situ measurement of river-bed sediment porosity using Structure-from-Motion image analysis

Author:
Tabesh, Mina; Hoffmann, Thomas; Vollmer, Stefan; Schüttrumpf, Holger; Frings, Roy M.
Source:
Geomorphology 2019 v.338 pp. 61-67
ISSN:
0169-555X
Subject:
calibration,   etc   ; image analysis; porosity; sediments; stream channels; uncertainty;     Show all 6 Subjects
Abstract:
... Due to the difficulty and inaccuracy of in-situ porosity measurement methods in fluvial deposits, knowledge about spatial variation of river bed porosity is limited. The objective of this study was to develop a new accurate method to improve and facilitate the in-situ porosity measurement of fluvial deposits. For this purpose, a Structure-from-Motion (SfM) photogrammetry-based method is applied to ...
DOI:
10.1016/j.geomorph.2019.04.011

20. Evaluation of RGB cube calibration framework and effect of calibration charts on color measurement of mozzarella cheese

Author:
Minz, P. S.; Saini, Charanjiv Singh
Source:
Journal of food measurement & characterization 2019 v.13 no.2 pp. 1537-1546
ISSN:
2193-4126
Subject:
calibration,   etc   ; color; color vision; colorimetry; mozzarella cheese; regression analysis; spectrophotometers;     Show all 7 Subjects
Abstract:
... Calibration of color vision system is one of the important factors to ensure measurement accuracy and to minimize error. In the present work, RGB cube calibration method was developed and evaluated. The method suggests a basis of selecting different color shades for calibration and gives insight on development of customized calibration charts. Four types of calibration charts (Macbeth gloss, Macbe ...
DOI:
10.1007/s11694-019-00069-9