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1. In-situ quantification of spatiotemporally resolved particle concentration in iron powder combustion using holographic imaging

Author:
Jianqing Huang; Zhiyong Wu; Weiwei Cai; Edouard Berrocal; Marcus Aldén; Zhongshan Li
Source:
Powder technology 2022 v.405 pp. 117554
ISSN:
0032-5910
Subject:
calibration,   etc   ; combustion; holography; streams;     Show all 4 Subjects
Abstract:
... In-situ quantification of particle concentration during the combustion of solid fuel powders is of importance for analyzing their combustion behaviors. Digital holography (DH) is applied here for studying iron powder combustion at high concentration. The performance of DH as a function of particle concentration is thoroughly studied with synthetic holograms. The detection efficiency is found to be ...
DOI:
10.1016/j.powtec.2022.117554

2. Locating high-impedance faults in DC microgrid clusters using support vector machines

Author:
Navid Bayati; Ebrahim Balouji; Hamid Reza Baghaee; Amin Hajizadeh; Mohsen Soltani; Zhengyu Lin; Mehdi Savaghebi
Source:
Applied energy 2022 v.308 pp. 118338
ISSN:
0306-2619
Subject:
calibration,   etc   ; energy; support vector machines;     Show all 3 Subjects
Abstract:
... With the increasing number of DC microgrids, DC microgrid clusters are emerging as a cost-effective solution. Therefore, due to the possible long distances between DC microgrids, once a fault occurs and is cleared, it should be located. Especially, locating high impedance faults (HIFs) is challenging. With communication-free fault locating methods, implementation costs can be reduced, and noise an ...
DOI:
10.1016/j.apenergy.2021.118338

3. Alternative Strategies for the Calibration and Elimination of Matrix Effects in LC-MS/MS Multiresidue Analysis of Tea Matrix

Author:
Bappaditya Kanrar; Partha Ghosh; Pathik Khan; Suparna Sengupta
Source:
Journal of analytical chemistry 2022 v.77 no.2 pp. 224-234
ISSN:
1061-9348
Subject:
calibration,   etc   ; multiresidue analysis; t-test; tea;     Show all 4 Subjects
Abstract:
... Efficiency of four different calibration techniques was evaluated on 50 pesticides in tea matrix by LC-MS/MS. Further statistical testing by MANOVA, T-tests as well as PCA indicates that calibration techniques have a significant effect on the efficiency of the analytical method to counteract the matrix effects and provide the best accuracy in the quantification. Matrix effects exceeding 20% for mo ...
DOI:
10.1134/S1061934822020034

4. Challenges with Simulating Modified RNA: Insights into Role and Reciprocity of Experimental and Computational Approaches

Author:
Rebecca J. D’Esposito; Christopher A. Myers; Alan A. Chen; Sweta Vangaveti
Source:
Genes 2022 v.13 no.3 pp. -
ISSN:
2073-4425
Subject:
calibration,   etc   ; RNA; functional diversity; molecular dynamics;     Show all 4 Subjects
Abstract:
... RNA is critical to a broad spectrum of biological and viral processes. This functional diversity is a result of their dynamic nature; the variety of three-dimensional structures that they can fold into; and a host of post-transcriptional chemical modifications. While there are many experimental techniques to study the structural dynamics of biomolecules, molecular dynamics simulations (MDS) play a ...
DOI:
10.3390/genes13030540

5. Data Processing of Gravity Base Network in Plateau Area: The Case of Qinghai Province, China

Author:
Qiong Wu; Shi Liu; Bin Wang; Linshan Zhong; Lijiang Zhao; Shengpeng Zhang; Hongqing Li
Source:
Remote Sensing 2022 v.14 no.5 pp. -
ISSN:
2072-4292
Subject:
calibration,   etc   ; Bayesian theory; gravity; surveys; topography; China;     Show all 6 Subjects
Abstract:
... The latest gravity survey of the gravity base network in Qinghai Province, China, was conducted with six Scintrex CG gravimeters and this gravity survey was tied to existed gravity reference stations. In this gravity network with long segments and very rugged topography, the calibration of scale factors is a time-consuming progress and its accuracy may be affected by many uncertainties, and the ch ...
DOI:
10.3390/rs14051142

6. Evaluation of dried matrix spot sampling for total sulphur determination in automotive gasoline by high-resolution continuum source molecular absorption spectrometry and direct solid sample analysis

Author:
Leandro Kolling; Morgana Bazzan Dessuy; Maria Goreti Rodrigues Vale; Márcia Messias da Silva
Source:
Talanta 2022 v.238 pp. 122998
ISSN:
0039-9140
Subject:
calibration,   etc   ; absorption; gasoline; liquids; polytetrafluoroethylene; spectroscopy; sulfur;     Show all 7 Subjects
Abstract:
... In this work, a method for total sulphur determination in automotive gasoline using dried matrix spot sampling is proposed. The method is based on the deposition of the sample on a cellulose-based filter paper and subsequent sulphur quantification via CS diatomic molecule using high-resolution continuum source graphite furnace molecular absorption spectrometry (HR-CS GF MAS). The sample deposition ...
DOI:
10.1016/j.talanta.2021.122998

7. New method for calibrating optical dissolved oxygen sensors in seawater based on an intelligent learning algorithm

Author:
Ying Zhang; Yingying Zhang; Da Yuan; Yunyan Zhang; Bingwei Wu; Xiandong Feng
Source:
Environmental monitoring and assessment 2022 v.194 no.1 pp. 39
ISSN:
0167-6369
Subject:
calibration,   etc   ; algorithms; dissolved oxygen; luminescence; oxygen; seawater;     Show all 6 Subjects
Abstract:
... Oxygen sensors based on luminescence quenching are the most commonly used instruments for in situ measurement in seawater due to their accuracy and long-term stability. The calibration method of the sensor is crucial for their accuracy. Conventional methods exhibit some defects, such as strict control of calibration conditions and cumbersome and time-consuming operation. To improve calibration ope ...
DOI:
10.1007/s10661-021-09592-z

8. Calibration of wet sand and gravel particles based on JKR contact model

Author:
Jiacheng Zhou; Libin Zhang; Chao Hu; Zhihang Li; Junjie Tang; Kuanmin Mao; Xiaoyu Wang
Source:
Powder technology 2022 v.397 pp. 117005
ISSN:
0032-5910
Subject:
calibration,   etc   ; energy; friction; gravel; models; sand; technology; vibration;     Show all 8 Subjects
Abstract:
... The parameters of wet sand and gravel particles with different shapes are calibrated based on JKR contact model. The results reveal that surface energy and rolling friction coefficient are the significant factors affecting the tangent of repose angle, indicating the great influence on the simulation accuracy of wet sand and gravel particles during vibration screening. In addition, the tangent of r ...
DOI:
10.1016/j.powtec.2021.11.049

9. Calibration transfer between developed portable Vis/NIR devices for detection of soluble solids contents in apple

Author:
Lianjie Li; Wenqian Huang; Zheli Wang; Sanqing Liu; Xin He; Shuxiang Fan
Source:
Postharvest biology and technology 2022 v.183 pp. 111720
ISSN:
0925-5214
Subject:
calibration,   etc   ; Biological Sciences; algorithms; apples; models; prediction; technology;     Show all 7 Subjects
Abstract:
... Calibration transfer is an important step for practical applications of Visible and Near-infrared (Vis/NIR) instruments, making the developed model transferable and avoiding recalibration. A calibration transfer method between two developed portable Vis/NIR devices (master and slave devices) for predicting soluble solids content (SSC) of apples was investigated in this study. The partial least squ ...
DOI:
10.1016/j.postharvbio.2021.111720

10. Research on Inversion and Correction Method of Urban Light Environment Based on Cooperative Observation

Author:
Baogang Zhang; Yiwei Li; Ming Liu; Yuchuan Liu; Tong Luo; Qingyuan Liu; Lie Feng; Weili Jiao
Source:
Remote Sensing 2022 v.14 no.12 pp. -
ISSN:
2072-4292
Subject:
calibration,   etc   ; databases; mathematical models; photometry; regression analysis; telemetry;     Show all 6 Subjects
Abstract:
... With the continuously growing city size and the increasingly complex and changeable light environment in the city, remote sensing and ground-measured technologies have certain limitations in the research of urban night light environment. The ground-measured data are accurate but low in efficiency and small in scale, while the night-light remote sensing data have the characteristics of high accurac ...
DOI:
10.3390/rs14122888

11. A spatial error-based cellular automata approach to reproducing and projecting dynamic urban expansion

Author:
Zhenkun Lei; Yongjiu Feng; Xiaohua Tong; Song Liu; Chen Gao; Shurui Chen
Source:
Geocarto international 2022 v.37 no.2 pp. 560-580
ISSN:
1752-0762
Subject:
calibration,   etc   ; autocorrelation; case studies; models; prediction; regression analysis; urbanization;     Show all 7 Subjects
Abstract:
... Urban systems are featured by spatial autocorrelation, which may produce clustering of model residuals when simulating urban expansion using cellular automata (CA). Accurate identification of spatial autocorrelation and reduction of residual clustering are essential to accurate CA modeling of urban expansion. We developed a new CA approach (CASEM) using a spatial error model (SEM) that incorporate ...
DOI:
10.1080/10106049.2020.1726508

12. Direct determination of nutrient elements in plant leaves by double pulse laser-induced breakdown spectroscopy: evaluation of calibration strategies using direct and inverse models for matrix-matching

Author:
Kleydson Stenio; Vinicius Câmara Costa; Carla Pereira De Morais; Aida Bebeachibuli Magalhães; Débora Marcondes Bastos Pereira Milori
Source:
Analytical methods 2022 v.14 no.12 pp. 1246-1253
ISSN:
1759-9679
Subject:
calibration,   etc   ; atomic absorption spectrometry; leaves; models; prediction; soybeans; sugarcane;     Show all 7 Subjects
Abstract:
... This study aims to develop a single calibration model to determine nutrient elements directly (Ca, Mg, Mn, and P) in soybean and sugar cane leaf samples by double pulse laser-induced breakdown spectroscopy (DP LIBS). Matrix-matching calibration (MMC) was evaluated using direct and inverse models. Forty-five samples were used to build the calibration model (23 soybean leaves and 22 sugar cane leave ...
DOI:
10.1039/d1ay02101j

13. GNSS Aided Long-Range 3D Displacement Sensing for High-Rise Structures with Two Non-Overlapping Cameras

Author:
Dongsheng Zhang; Zhenyang Yu; Yan Xu; Li Ding; Hu Ding; Qifeng Yu; Zhilong Su
Source:
Remote Sensing 2022 v.14 no.2 pp. -
ISSN:
2072-4292
Subject:
calibration,   etc   ; cameras; deformation; geometry; global positioning systems; models; vision;     Show all 7 Subjects
Abstract:
... Image-based displacement measurement techniques are widely used for sensing the deformation of structures, and plays an increasing role in structural health monitoring owing to its benefit of non-contacting. In this study, a non-overlapping dual camera measurement model with the aid of global navigation satellite system (GNSS) is proposed to sense the three-dimensional (3D) displacements of high-r ...
DOI:
10.3390/rs14020379

14. Impact of the inclusion of the sociological position and upper-stem diameter in the taper modeling of Pinus taeda trees, subjected to different thinning regimes

Author:
Ximena Mendes de Oliveira; Henrique Ferraço Scolforo; John Paul McTague; Mário Dobner Junior; José Roberto Soares Scolforo
Source:
Trees, forests and people 2022 v.8 pp. 100251
ISSN:
2666-7193
Subject:
calibration,   etc   ; Pinus taeda; equations; forest inventory; models; trees; Brazil;     Show all 7 Subjects
Abstract:
... The modeling of the taper and shape of the tree stem is of great interest to forest managers and can be carried out using different approaches. The objective of this study was to improve the accuracy of taper modeling, considering a methodology that combines generalization and calibration with an upper-stem diameter. An experiment was conducted with stands of Pinus taeda from southern Brazil that ...
DOI:
10.1016/j.tfp.2022.100251

15. Evaluation of the Potential of Single Particle ICP-MS for the Accurate Measurement of the Number Concentration of AuNPs of Different Sizes and Coatings

Author:
Antonio R. Montoro Bustos; Karen E. Murphy; Michael R. Winchester
Source:
Analytical chemistry 2022 v.94 no.7 pp. 3091-3102
ISSN:
1520-6882
Subject:
calibration,   etc   ; analytical chemistry; nanogold; particle size; particle size distribution; uncertainty;     Show all 6 Subjects
Abstract:
... Single particle inductively coupled plasma-mass spectrometry (spICP-MS) is an emerging technique that is capable of simultaneous measurement of the size and number concentration of metal-containing nanoparticles (NPs) at environmentally relevant levels. Although spICP-MS is widely applied to different fields, challenges remain in obtaining accurate and consistent particle number concentration (PNC ...
DOI:
10.1021/acs.analchem.1c04140

16. Assessment of Sponge City Flood Control Capacity According to Rainfall Pattern Using a Numerical Model after Muti-Source Validation

Author:
Haichao Li; Hiroshi Ishidaira; Yanqi Wei; Kazuyoshi Souma; Jun Magome
Source:
Water 2022 v.14 no.5 pp. -
ISSN:
2073-4441
Subject:
calibration,   etc   ; flood control; mathematical models; model validation; rain; urban runoff; China;     Show all 7 Subjects
Abstract:
... Urban floods are a common urban disaster that threaten the economy and development of cities. Sponge cities can improve flood resistance ability and reduce floods by setting low-impact development measures (LID). Evaluating flood reduction benefits is the basic link in the construction of sponge cities. Therefore, it is of great significance to evaluate the benefits of sponge cities from the persp ...
DOI:
10.3390/w14050769

17. Computational and experimental optimization of 135Xe production in calibration sources

Author:
Tanner W. Hall; Meng-Jen (Vince) Wang; Glenn E. Sjoden; Matthew Watrous
Source:
Journal of environmental radioactivity 2022 v.244-245 pp. 106814
ISSN:
0265-931X
Subject:
calibration,   etc   ; equipment; irradiation; manufacturing; neutrons; polytetrafluoroethylene; quality control; radioactivity; viability; Utah;     Show all 10 Subjects
Abstract:
... Here we present a new method of irradiating ¹³⁴Xe capsules to produce ¹³⁵Xe gas standards which maximize the ratio of ¹³⁵Xe to ¹³³Xe production due to (n,g) and (n,2n) reactions, respectively. We performed “Spectral tuning” of the University of Utah TRIGA Reactor (UUTR) neutron spectrum to increase the length of time that ¹³⁵Xe dominates undesirable ¹³⁵Xe in the sample, so that the capsules – used ...
DOI:
10.1016/j.jenvrad.2022.106814

18. Aptamer-Initiated Catalytic Hairpin Assembly Fluorescence Assay for Universal, Sensitive Exosome Detection

Author:
Jiaqi Zhou; Qiuyuan Lin; Zhipeng Huang; Huiwen Xiong; Bin Yang; Hui Chen; Jilie Kong
Source:
Analytical chemistry 2022 v.94 no.15 pp. 5723-5728
ISSN:
1520-6882
Subject:
calibration,   etc   ; analytical chemistry; biomarkers; blood serum; cell communication; detection limit; exosomes; fluorescence;     Show all 8 Subjects
Abstract:
... Cancer-cell-derived exosomes are regarded as noninvasive biomarkers for early cancer diagnosis because of their critical roles in intercellular communication and molecular exchange. A robust aptamer-initiated catalytic hairpin assembly (AICHA) fluorescence assay is proposed for universal, sensitive detection of cancer-derived exosomes. The AICHA was verified with the specific detection of MCF-7 ce ...
DOI:
10.1021/acs.analchem.2c00231

19. Calibration strategies for laser ablation ICP-MS in biological studies: A review

Author:
Huijie Pan; Liuxing Feng; Yanli Lu; Yachen Han; Jinping Xiong; Hongmei Li
Source:
Trends in analytical chemistry 2022 v.156 pp. 116710
ISSN:
0165-9936
Subject:
calibration,   etc   ; analytical chemistry; atomic absorption spectrometry; fractionation; isotope dilution technique; quantitative analysis;     Show all 6 Subjects
Abstract:
... Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) has attracted attentions for its high sensitivity and sufficient spatial resolution in the in-situ analysis and imaging in biological studies. However, due to the matrix effect and elemental fractionation, achieving quantitative analysis of elements or proteins in biological samples are still challenging. Calibration is a nece ...
DOI:
10.1016/j.trac.2022.116710

20. Fate of enniatins in the Ale beer production stages analyzed by a validated method based on matrix-matched calibration and LC-QToF-MS

Author:
Laura Oliveira Lago; Júlia Barreto Hoffmann Maciel; Gustavo Pires Costa; Luana Peixoto Mallmann; Flávio Fonseca Veras; Juliane Elisa Welke
Source:
Food chemistry 2022 v.384 pp. 132484
ISSN:
0308-8146
Subject:
calibration,   etc   ; beers; food chemistry; liquid chromatography; malt; mass spectrometry; mycotoxins; water solubility;     Show all 8 Subjects
Abstract:
... Enniatins (ENA, ENA1, ENB and ENB1) are emerging mycotoxins reported in malt used for brewing. This study aimed to assess the fate of ENA, ENA1, ENB and ENB1 throughout Ale beer brewing using a validated method based on matrix-matched calibration (MMC) and liquid chromatography with quadrupole time-of-flight mass spectrometry detection. MMC avoided the inaccurate quantification of all enniatins, s ...
DOI:
10.1016/j.foodchem.2022.132484