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1. Novel strategy for disposable pipette extraction (DPX): Low-cost Parallel-DPX for determination of phthalate migration from common plastic materials to saliva simulant with GC-MS

Author:
Huelsmann, Ricardo Dagnoni; Will, Camila; Carasek, Eduardo
Source:
Talanta 2021 v.221 pp. 121443
ISSN:
0039-9140
Subject:
calibration,   etc   ; desorption; detection limit; ethyl acetate; gas chromatography-mass spectrometry; human health; phthalates; plasticizers; plastics; saliva; standard deviation; toys;     Show all 12 Subjects
Abstract:
... In widespread use in commercial products as plasticizers, phthalic acid esters (phthalates) have worried researchers and society in general, given the negative impacts on living organisms, especially human health. Since they are not chemically linked to the polymeric matrix, their migration is evident for samples that come into contact with plastics that contain them, such as water, food and saliv ...
DOI:
10.1016/j.talanta.2020.121443

2. Relying on repeated biospecimens to reduce the effects of classical-type exposure measurement error in studies linking the exposome to health

Author:
Agier, Lydiane; Slama, Rémy; Basagaña, Xavier
Source:
Environmental research 2020 v.186 pp. 109492
ISSN:
0013-9351
Subject:
calibration,   etc   ; biomarkers; temporal variation;     Show all 3 Subjects
Abstract:
... The exposome calls for assessing numerous exposures, typically using biomarkers with varying amounts of measurement error, which can be assumed to be of classical type. We evaluated the impact of classical-type measurement error on the performance of exposome-health studies, and the efficiency of two measurement error correction methods relying on the collection of repeated biospecimens: within-su ...
DOI:
10.1016/j.envres.2020.109492

3. Experimental study and DEM analysis of granular segregation in a rotating drum

Author:
Brandao, Rodolfo J.; Lima, Rondinelli M.; Santos, Raphael L.; Duarte, Claudio R.; Barrozo, Marcos A.S.
Source:
Powder technology 2020 v.364 pp. 1-12
ISSN:
0032-5910
Subject:
calibration,   etc   ; drums (equipment); mixing;     Show all 3 Subjects
Abstract:
... In this work, we experimentally and numerically investigated the mixing/segregation behavior of particles in an unbaffled rotary drum. We analyzed different combinations of binary mixtures that varied in density and size. We also quantified the effect of filling degree and rotational speed of the drum on the mixing index of each binary mixture. We used the discrete element method (DEM) for the sim ...
DOI:
10.1016/j.powtec.2020.01.036

4. Calibration and Impact of BeiDou Satellite-Dependent Timing Group Delay Bias

Author:
Zhang, Yize; Wang, Hu; Chen, Junping; Wang, Ahao; Meng, Lingdong; Wang, Ershen
Source:
Remote Sensing 2020 v.12 no.1
ISSN:
2072-4292
Subject:
calibration,   etc   ; remote sensing; satellites;     Show all 3 Subjects
Abstract:
... The accuracy of the timing group delay (TGD) transmitted in the broadcast ephemeris is an important factor that affects the service performance of a GNSS system. In this contribution, an apparent bias is found by comparing the orbit and clock difference using half-year data of the BeiDou navigation satellite system (BDS) broadcast ephemeris and precise post-processed products. The bias differs at ...
DOI:
10.3390/rs12010192

5. Spectral responsivity calibration of a polarization remote sensor based on a supercontinuum laser and monochromator

Author:
Xie, Chenyu; Zhai, Wenchao; Li, Jianjun; Yin, Lin; Wu, Haoyu; Zheng, Xiaobing
Source:
International journal of remote sensing 2020 v.41 no.13 pp. 4981-4994
ISSN:
1366-5901
Subject:
calibration,   etc   ; image analysis; remote sensing;     Show all 3 Subjects
Abstract:
... Relative spectral responsivity is a basic parameter for detecting and evaluating the in-band response non-consistency of the channel polarization remote sensor (CPRS) in laboratory calibration. In this paper, a spectrally resolved calibration facility was assembled for the calibration of relative spectral responsivity by using novel supercontinuum laser and monochromator (SLM). Taking three polari ...
DOI:
10.1080/01431161.2020.1717670

6. WinMLR, a software program for the simultaneous determination of several components in mixtures using multilinear regression analysis

Author:
Becerra, Eduardo; Danchana, Kaewta; Cerdà, Víctor
Source:
Talanta 2020 v.213 pp. 120830
ISSN:
0039-9140
Subject:
calibration,   etc   ; computer software; regression analysis;     Show all 3 Subjects
Abstract:
... The program WinMLR has been developed for the quantification of mixtures of several components by making a multilinear regression treatment of experimental data to a linear combination of standard signals. Data may be obtained with any multichannel detector having more measuring channels than components to be resolved. For a correct resolution, a linear relationship between the signal of every cha ...
DOI:
10.1016/j.talanta.2020.120830

7. Performance assessment of retired EV battery modules for echelon use

Author:
Zhang, Youlang; Li, Yan; Tao, Yibin; Ye, Jilei; Pan, Aiqiang; Li, Xinzhou; Liao, Qiangqiang; Wang, Zhiqin
Source:
Energy 2020 v.193 pp. 116555
ISSN:
0360-5442
Subject:
calibration,   etc   ; batteries; cold; electricity; temperature;     Show all 5 Subjects
Abstract:
... The performance of retired EV battery modules was tested in order to learn their attenuation states and different capacity test protocols of retired modules are compared in order to strike a balance between calibration accuracy and test time. The results show that most modules have no serious capacity fading while a minority of modules whose capacity is less than 80% SOH will bring about the capac ...
DOI:
10.1016/j.energy.2019.116555

8. Electroanalysis of diquat using a glassy carbon electrode modified with natural hydroxyapatite and β-cyclodextrin composite

Author:
Tchoffo, Rodrigue; Ngassa, Guy B. Piegang; Tonlé, Ignas K.; Ngameni, Emmanuel
Source:
Talanta 2021 v.222 pp. 121550
ISSN:
0039-9140
Subject:
calibration,   etc   ; Fourier transform infrared spectroscopy; X-ray diffraction; beta-cyclodextrin; citric acid; composite materials; detection limit; diquat; electrochemistry; films (materials); glassy carbon electrode; hydroxyapatite; ion exchange; moieties; permeability; physicochemical properties; thermal analysis; voltammetry;     Show all 18 Subjects
Abstract:
... The present work reports the development of a low-cost and reliable differential pulse adsorptive stripping voltammetric procedure for the detection of diquat (DQ) in water, using a glassy carbon electrode (GCE) modified with β-cyclodextrin (β-CD)/Natural hydroxyapatite (NHAPP₀.₅) composite material. The structural characterization of the natural hydroxyapatite and its modified counterpart was ach ...
DOI:
10.1016/j.talanta.2020.121550

9. Fiducial Reference Measurements for validation of Sentinel-2 and Proba-V surface reflectance products

Author:
Origo, Niall; Gorroño, Javier; Ryder, James; Nightingale, Joanne; Bialek, Agnieszka
Source:
Remote sensing of environment 2020 v.241 pp. 111690
ISSN:
0034-4257
Subject:
calibration,   etc   ; product quality; reflectance; remote sensing; uncertainty;     Show all 5 Subjects
Abstract:
... Many derived Earth Observation products share surface reflectance as a common step in their processing chains. This makes the maintenance and improvement of surface reflectance product quality of fundamental importance to ensure information derived from these downstream products can be trusted. Despite this, the literature is relatively light on the implementation of validation methodologies desig ...
DOI:
10.1016/j.rse.2020.111690

10. Effects of Category Aggregation on Land Change Simulation Based on Corine Land Cover Data

Author:
Varga, Orsolya Gyöngyi; Pontius Jr, Robert Gilmore; Szabó, Zsuzsanna; Szabó, Szilárd
Source:
Remote Sensing 2020 v.12 no.8
ISSN:
2072-4292
Subject:
calibration,   etc   ; land cover; remote sensing; simulation models;     Show all 4 Subjects
Abstract:
... Several factors influence the performance of land change simulation models. One potentially important factor is land category aggregation, which reduces the number of categories while having the potential to reduce also the size of apparent land change in the data. Our article compares how four methods to aggregate Corine Land Cover categories influence the size of land changes in various spatial ...
DOI:
10.3390/rs12081314

11. Experimental Calibration of the Overlap Factor for the Pulsed Atmospheric Lidar by Employing a Collocated Scheimpflug Lidar

Author:
Mei, Liang; Ma, Teng; Zhang, Zhen; Fei, Ruonan; Liu, Kun; Gong, Zhenfeng; Li, Hui
Source:
Remote Sensing 2020 v.12 no.7
ISSN:
2072-4292
Subject:
calibration,   etc   ; aerosols; environmental monitoring; lidar; remote sensing;     Show all 5 Subjects
Abstract:
... Lidar techniques have been widely employed for atmospheric remote sensing during past decades. However, an important drawback of the traditional atmospheric pulsed lidar technique is the large blind range, typically hundreds of meters, due to incomplete overlap between the transmitter and the receiver, etc. The large blind range prevents the successful retrieval of the near-ground aerosol profile, ...
DOI:
10.3390/rs12071227

12. Accurate Evaluation of Potential Calibration Standards for Ion Mobility Spectrometry

Author:
Hauck, Brian C.; Harden, Charles S.; McHugh, Vincent M.
Source:
Analytical chemistry 2020 v.92 no.8 pp. 6158-6165
ISSN:
1520-6882
Subject:
calibration,   etc   ; detectors; humidity; reference standards; spectroscopy; temperature;     Show all 6 Subjects
Abstract:
... Ion mobility spectrometry (IMS)-based instruments have historically been accurate to, at best, ±2% of the reduced ion mobility (K₀) value of the chemical of interest. Fielded IMS-based detectors that are in use for hazardous and illicit substance detection are subject to false-positive alarms because of this inaccuracy and the resulting wide alarm windows, which are required to maintain a high rat ...
DOI:
10.1021/acs.analchem.0c00859

13. Integrated geometric self-calibration of stereo cameras onboard the ZiYuan-3 satellite

Author:
Yang, Bo; Pi, Yingdong; Li, Xin; Yang, Yuhui
Source:
ISPRS journal of photogrammetry and remote sensing 2020 v.162 pp. 173-183
ISSN:
0924-2716
Subject:
calibration,   etc   ; cameras; geometry; remote sensing; satellites;     Show all 5 Subjects
Abstract:
... The geometric quality of images is a principal concern for a stereo mapping satellite. On-orbit geometric calibration (GC) is an essential processing step that is always performed to ensure the geometric accuracy of satellite images. However, the traditional GC method is typically expensive and inefficient due to a large dependence on ground-based locations. Although recent GC methods based on rel ...
DOI:
10.1016/j.isprsjprs.2020.02.015

14. Occurrence and associative value of non-identifiable fingermarks

Author:
Stoney, David A.; De Donno, Marco; Champod, Christophe; Wertheim, Pat A.; Stoney, Paul L.
Source:
Forensic science international 2020 v.309 pp. 110219
ISSN:
0379-0738
Subject:
calibration,   etc   ; crime; databases; experts; models; probability;     Show all 6 Subjects
Abstract:
... Fingermarks that have insufficient characteristics for identification often have discernible characteristics that could form the basis for lesser degrees of correspondence or probability of occurrence within a population. Currently, those latent prints that experts judge to be insufficient for identification are not used as associative evidence. How often do such prints occur and what is their pot ...
DOI:
10.1016/j.forsciint.2020.110219

15. Conditional absolute mean calibration for partial linear multiplicative distortion measurement errors models

Author:
Zhang, Jun; Lin, Bingqing; Feng, Zhenghui
Source:
Computational statistics & data analysis 2020 v.141 pp. 77-93
ISSN:
0167-9473
Subject:
calibration,   etc   ; confidence interval; least squares; linear models;     Show all 4 Subjects
Abstract:
... In this paper we consider partial linear regression models when all the variables are measured with multiplicative distortion measurement errors. To eliminate the effect caused by the distortion, we propose the conditional absolute mean calibration, which avoids to use the nonzero expectation conditions imposed on the variables. With these calibrated variables, a profile least squares estimator is ...
DOI:
10.1016/j.csda.2019.06.009

16. Plenoptic camera calibration based on microlens distortion modelling

Author:
Darwish, Walid; Bolsee, Quentin; Munteanu, Adrian
Source:
ISPRS journal of photogrammetry and remote sensing 2019 v.158 pp. 146-154
ISSN:
0924-2716
Subject:
calibration,   etc   ; cameras; geometry; models;     Show all 4 Subjects
Abstract:
... Light field cameras have become a popular device for handheld, passive depth estimation. The geometry of the captured light rays can be equivalently described as a virtual camera array, where each view is taken from a different point on a regular grid. With this paper, we propose describing the effect of the main lens and microlens distortion on both the captured views, and on their position on th ...
DOI:
10.1016/j.isprsjprs.2019.10.008

17. Sensitivity Analysis and Minimal Measurement Geometry for the Target-Based Calibration of High-End Panoramic Terrestrial Laser Scanners

Author:
Medić, Tomislav; Kuhlmann, Heiner; Holst, Christoph
Source:
Remote Sensing 2019 v.11 no.13
ISSN:
2072-4292
Subject:
calibration,   etc   ; remote sensing; scanners;     Show all 3 Subjects
Abstract:
... Target-based calibration is the most widely used calibration procedure for terrestrial laser scanners. Nevertheless, the current implementations of this procedure are suboptimal due to the high complexity of their calibration fields. Therefore, designing calibration fields, by selecting optimal target locations with respect to the instrument, is a pending research question. Answering this question ...
DOI:
10.3390/rs11131519

18. 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

19. An estimation method of smart meter errors based on DREM and DRLS

Author:
Kong, Xiangyu; Zhang, Xiaopeng; Li, Gang; Dong, Delong; Li, Ye
Source:
Energy 2020 v.204 pp. 117774
ISSN:
0360-5442
Subject:
calibration,   etc   ; algorithms; electrical equipment; least squares; meters (equipment);     Show all 5 Subjects
Abstract:
... Remote estimation of smart meter errors based on measurement data analysis from the user smart meter comes into focus because field calibration has high maintenance cost and difficult to analyze in time. In this paper, a remote estimation method of smart meter errors based on Dimension Reduction Estimation Model (DREM) and Damped Recursion Least Squares (DRLS) is proposed, in which DREM deals with ...
DOI:
10.1016/j.energy.2020.117774

20. Structure from motion for complex image sets

Author:
Michelini, Mario; Mayer, Helmut
Source:
ISPRS journal of photogrammetry and remote sensing 2020 v.166 pp. 140-152
ISSN:
0924-2716
Subject:
calibration,   etc   ; cameras; geometry; global positioning systems; radiometry; unmanned aerial vehicles;     Show all 6 Subjects
Abstract:
... This paper presents an approach for Structure from Motion (SfM) for unorganized complex image sets. To achieve high accuracy and robustness, image triplets are employed and an (approximate) internal camera calibration is assumed to be known. The complexity of an image set is determined by the camera configurations which may include wide as well as weak baselines.Wide baselines occur for instance w ...
DOI:
10.1016/j.isprsjprs.2020.05.020