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Journal articles on the topic 'Reliability calibrations'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Mlcek, Jiri, Lukas Dvorak, Kvetoslava Sustova, and Katarzyna Szwedziak. "Accuracy of the FT-NIR Method in Evaluating the Fat Content of Milk Using Calibration Models Developed for the Reference Methods According to Röse-Gottlieb and Gerber." Journal of AOAC INTERNATIONAL 99, no. 5 (2016): 1305–9. http://dx.doi.org/10.5740/jaoacint.16-0107.

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Abstract The study examined the effect of the choice of reference method on the functionality and reliability of calibrations in near-IR (NIR) spectroscopy intended for measuring the fat content in raw cow's milk. The fat content in the milk samples was evaluated using methods according to either Röse-Gottlieb or Gerber. The same samples were then subjected to analysis on an Antaris FT-NIR spectrometer. Using a partial least-squares algorithm, calibration models were created for both methods from the values measured. The calibration models show very good values of standard error of calibration

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Schaude, Janik, and Tino Hausotte. "Uncertainty-based determination of recalibration dates." International Journal of Metrology and Quality Engineering 15 (2024): 2. http://dx.doi.org/10.1051/ijmqe/2023017.

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Traceability is of vital importance in metrology and is achieved by an unbroken chain of calibrations that relate the measurement result to a reference. Less clear is the temporal aspect of traceability, namely the determination of recalibration dates. Relevant standards require the conduction of recalibrations in a planned manner, and thus in general there is a calibration history consisting of a number of past calibrations for measurands that are part of the traceability chain. Nevertheless, commonly only the results of the last calibration of the standards of the traceability chain are cons

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Subhash NN, Arumugham V, and Leena Joseph. "Optimization of Process Variables to Minimize Uncertainty in Micro-Volume Measurements." international journal of engineering technology and management sciences 8, no. 3 (2024): 75–90. http://dx.doi.org/10.46647/ijetms.2024.v08i03.010.

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Calibration of micropipettes plays a significant role in ensuring the reliability and accuracy of volumetric results while conducting testing and research in the areas of biology, analytical chemistry and, pharmaceutical sciences, etc. Understanding the uncertainty elements and their contribution to measurements is the preliminary step in any calibration activity. In the study entitled ’Optimization of process variable to minimize uncertainty in micro-volume measurements’, an attempt is made to analyze the role of uncertainty contributing process variables in volume calibrations based on ISO 8

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Su, Danyan, Lingxiao Yang, Xuan Shi, et al. "Large-Scale Phylogenomic Analyses Reveal the Monophyly of Bryophytes and Neoproterozoic Origin of Land Plants." Molecular Biology and Evolution 38, no. 8 (2021): 3332–44. http://dx.doi.org/10.1093/molbev/msab106.

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Abstract The relationships among the four major embryophyte lineages (mosses, liverworts, hornworts, vascular plants) and the timing of the origin of land plants are enigmatic problems in plant evolution. Here, we resolve the monophyly of bryophytes by improving taxon sampling of hornworts and eliminating the effect of synonymous substitutions. We then estimate the divergence time of crown embryophytes based on three fossil calibration strategies, and reveal that maximum calibration constraints have a major effect on estimating the time of origin of land plants. Moreover, comparison of priors

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Fahrni, Reto, Gianluca De Sanctis, and Andrea Frangi. "Comparison of reliability- and design-based code calibrations." Structural Safety 88 (January 2021): 102005. http://dx.doi.org/10.1016/j.strusafe.2020.102005.

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Senn, J. A., J. P. Mills, P. E. Miller, et al. "ON-SITE GEOMETRIC CALIBRATION OF THERMAL AND OPTICAL SENSORS FOR UAS PHOTOGRAMMETRY." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLIII-B1-2020 (August 6, 2020): 355–61. http://dx.doi.org/10.5194/isprs-archives-xliii-b1-2020-355-2020.

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Abstract. UAS imagery has become a widely used source of information in geomorphic research. When photogrammetric methods are applied to quantify geomorphic change, camera calibration is essential to ensure accuracy of the image measurements. Insufficient self-calibration based on survey data can induce systematic errors that can cause DEM deformations. The typically low geometric stability of consumer grade sensors necessitates in-situ calibration, as the reliability of a lab based calibration can be affected by transport. In this research a robust on-site workflow is proposed that allows the

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Andron, Teodor D., Warren T. Corns, Matthew A. Dexter, Igor Živković, Jože Kotnik, and Milena Horvat. "A Traceable Calibration for Gaseous Elemental Mercury Measurements in Air and Water." Atmosphere 16, no. 4 (2025): 421. https://doi.org/10.3390/atmos16040421.

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Calibration is crucial in quantitative analysis, ensuring the traceability of standards for an accurate comparison of results. In mercury determinations, a gas calibrator unit containing liquid mercury is used for calibration by injecting headspace volumes via syringe. The Dumarey equation has been used for over 35 years to calculate mercury headspace concentration, aligning closely with saturated vapor pressure equations. However, the 2006 Huber equation yields different values, creating discrepancies. This paper compares calibrations using the Dumarey equations against NIST 3133 certified re

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Sopianah, Yayah, Kwartarini Murdiastuti, Rosa Amalia, and Lukito Nugroho. "Inter-Examiner Training and Calibration to Assess Dental and Oral Disease in the Elderly." Open Access Macedonian Journal of Medical Sciences 11, no. D (2023): 50–54. http://dx.doi.org/10.3889/oamjms.2023.11499.

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BACKGROUND: Examiner training and calibration in clinical measurement of important variables is carried out to equalize perceptions among examiners. AIM: This study aims to obtain intra- and inter-examiner perception similarities after training and calibration in measuring dental caries, tooth mobility, periodontal pockets, and tooth loss in the elderly. MATERIALS AND METHODS: A total of ten examiners performed clinical measurements of dental caries, tooth mobility, periodontal pockets, and tooth loss. The measurement was carried out by a researcher to examine 25 elderly respondents. The calib

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Kröger, Ingo, Dirk Friedrich, Stefan Winter, et al. "Results of the round robin calibration of reference solar cells within the PhotoClass project." International Journal of Metrology and Quality Engineering 9 (2018): 8. http://dx.doi.org/10.1051/ijmqe/2018006.

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An intercomparison of terrestrial photovoltaic (PV) calibrations was performed among a number of European calibration and testing laboratories that participated in the European Metrology Research Program (EMRP) project “PhotoClass”. The purpose of this intercomparison was to evaluate the comparability of calibration and testing services within the stated uncertainties of the individual laboratories. The calibration objects were two world photovoltaic scale (WPVS)-type reference solar cells, one made from crystalline silicon and one made from GaAs. The calibration value (CV) was the short-circu

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Nørgaard, Kren Monrad. "A reciprocity method for validating acoustic ear-probe source calibrations." Journal of the Acoustical Society of America 152, no. 5 (2022): 2652–63. http://dx.doi.org/10.1121/10.0014959.

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Measurements of wideband acoustic immittance (WAI) rely on the calibration of an ear probe to obtain its acoustic source parameters. The clinical use of WAI and instruments offering the functionality are steadily growing, however, no international standard exists to ensure a certain reliability of the hardware and methods underlying such measurements. This paper describes a reciprocity method that can evaluate the accuracy of and identify errors in ear-probe source calibrations. By placing the ear probes of two calibrated WAI instruments face-to-face at opposite ends of a short waveguide, the

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Piedrahita, R., Y. Xiang, N. Masson, et al. "The next generation of low-cost personal air quality sensors for quantitative exposure monitoring." Atmospheric Measurement Techniques Discussions 7, no. 3 (2014): 2425–57. http://dx.doi.org/10.5194/amtd-7-2425-2014.

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Abstract. Advances in embedded systems and low-cost gas sensors are enabling a new wave of low cost air quality monitoring tools. Our team has been engaged in the development of low-cost wearable air quality monitors (M-Pods) using the Arduino platform. The M-Pods use commercially available metal oxide semiconductor (MOx) sensors to measure CO, O3, NO2, and total VOCs, and NDIR sensors to measure CO2. MOx sensors are low in cost and show high sensitivity near ambient levels; however they display non-linear output signals and have cross sensitivity effects. Thus, a quantification system was dev

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Ho, Simon Y. W., K. Jun Tong, Charles S. P. Foster, Andrew M. Ritchie, Nathan Lo, and Michael D. Crisp. "Biogeographic calibrations for the molecular clock." Biology Letters 11, no. 9 (2015): 20150194. http://dx.doi.org/10.1098/rsbl.2015.0194.

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Molecular estimates of evolutionary timescales have an important role in a range of biological studies. Such estimates can be made using methods based on molecular clocks, including models that are able to account for rate variation across lineages. All clock models share a dependence on calibrations, which enable estimates to be given in absolute time units. There are many available methods for incorporating fossil calibrations, but geological and climatic data can also provide useful calibrations for molecular clocks. However, a number of strong assumptions need to be made when using these b

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Zeng, Lihua, and Daoliang Li. "Development ofIn SituSensors for Chlorophyll Concentration Measurement." Journal of Sensors 2015 (2015): 1–16. http://dx.doi.org/10.1155/2015/903509.

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Chlorophyll fluorescence measurement is a sensitive and effective method to quantify and analyze freshwater and sea water phytoplanktonin situ. Major improvements in optical design, electronic technology, and calibration protocol have increased the accuracy and reliability of the fluorometer. This review briefly describes the improvement of probe design, excitation light sources, detectors, and calibrations ofin situfluorometers. Firstly, various optical designs for increasing the efficiency of fluorescence measurement are discussed. Next, the development of electronic technology to meet and i

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Campos, Valeria, and Luis Luengo. "Dental examiners consistency in applying different oral health indices in permanent dentition for a population-based study." International Journal of Medical and Surgical Sciences 5, no. 3 (2019): 95–99. http://dx.doi.org/10.32457/ijmss.2018.024.

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Different indices to identify dental diseases have been developed. For population-based studies, it is imperative to use simple and reliable indices, but most importantly, clinical examiners should reach an agreement, in order to increase inter-observer reliability and obtain reliable data. The objective of this study was to describe the calibration process of the Dental Aesthetic Index, Community Periodontal Index, Simplified Oral Hygiene Index and International Caries Detection and Assessment System ICDAS II by two academics from the Public Health Department of Dentistry. All calibrations st

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Watmuff, G., D. J. Reuter, and S. D. Speirs. "Methodologies for assembling and interrogating N, P, K, and S soil test calibrations for Australian cereal, oilseed and pulse crops." Crop and Pasture Science 64, no. 5 (2013): 424. http://dx.doi.org/10.1071/cp12424.

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During the past 50 years, 3800 field experiments yielding over 5200 treatment series were conducted in Australia examining yield responses to applied N, P, K, or S fertiliser applications to cereal, oilseed and pulse crops. The experiments all had accompanying soil test data. These data were entered into multiple Microsoft Access® database templates and then consolidated into a single national online MYSQL® database. A web application (named the BFDC Interrogator) was also developed to rapidly access the national database (BFDC National Database) and construct soil test calibrations between pe

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Li, Xin-Ran. "Phylogeny and age of cockroaches: a reanalysis of mitogenomes with selective fossil calibrations." Deutsche Entomologische Zeitschrift 69, no. 1 (2022): 1–18. http://dx.doi.org/10.3897/dez.69.68373.

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In spite of big data and new techniques, the phylogeny and timing of cockroaches remain in dispute. Apart from sequencing more species, an alternative way to improve the phylogenetic inference and time estimation is to improve the quality of data, calibrations and analytical procedure. This study emphasizes the completeness of data, the reliability of genes (judged via alignment ambiguity and substitution saturation), and the justification for fossil calibrations. Based on published mitochondrial genomes, the Bayesian phylogeny of cockroaches and termites is recovered as: Corydiinae + (((Crypt

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Li, Xin-Ran. "Phylogeny and age of cockroaches: a reanalysis of mitogenomes with selective fossil calibrations." Deutsche Entomologische Zeitschrift 69, no. (1) (2022): 1–18. https://doi.org/10.3897/dez.69.68373.

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In spite of big data and new techniques, the phylogeny and timing of cockroaches remain in dispute. Apart from sequencing more species, an alternative way to improve the phylogenetic inference and time estimation is to improve the quality of data, calibrations and analytical procedure. This study emphasizes the completeness of data, the reliability of genes (judged via alignment ambiguity and substitution saturation), and the justification for fossil calibrations. Based on published mitochondrial genomes, the Bayesian phylogeny of cockroaches and termites is recovered as: Corydiinae + (((Crypt

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18

Alley, Richard B. "Reliability of ice-core science: historical insights." Journal of Glaciology 56, no. 200 (2010): 1095–103. http://dx.doi.org/10.3189/002214311796406130.

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AbstractIce cores are remarkably faithful recorders of past climate, providing multiply duplicated reconstructions with small and quantifiable uncertainties. Ice core reconstructions in general do not rely on assumed quantitative time-invariance of empirical calibrations between climate and sedimentary characteristics, but instead rely on assuming little more than the constancy of physical law over time. The history of some of the discoveries that allow these ice-core climatic reconstructions is instructive for students, citizens and policymakers. Much important ice-core science was published

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19

Kong, Dejing, and Lirong Cui. "Bayesian inference of multi-stage reliability for degradation systems with calibrations." Proceedings of the Institution of Mechanical Engineers, Part O: Journal of Risk and Reliability 230, no. 1 (2015): 18–33. http://dx.doi.org/10.1177/1748006x15580752.

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20

Abbas, K., F. Simonelli, F. D’Alberti, M. Forte, and M. F. Stroosnijder. "Reliability of two calculation codes for efficiency calibrations of HPGe detectors." Applied Radiation and Isotopes 56, no. 5 (2002): 703–9. http://dx.doi.org/10.1016/s0969-8043(01)00269-x.

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21

Dominy, R. G., and H. P. Hodson. "An Investigation of Factors Influencing the Calibration of Five-Hole Probes for Three-Dimensional Flow Measurements." Journal of Turbomachinery 115, no. 3 (1993): 513–19. http://dx.doi.org/10.1115/1.2929281.

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The effects of Reynolds number, Mach number, and turbulence on the calibrations of commonly used types of five-hole probe are discussed. The majority of the probes were calibrated at the exit from a transonic nozzle over a range of Reynolds numbers (7 × 103 < Re < 80 × 103 based on probe tip diameter) at subsonic and transonic Mach numbers. Additional information relating to the flow structure were obtained from a large-scale, low-speed wind tunnel. The results confirmed the existence of two distinct Reynolds number effects. Flow separation around the probe head affects the calibrations

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Hopkins, Kyle, Maree Bowen, Rob Dixon, and David Reid. "Evaluating crude protein concentration of leucaena forage and the dietary legume content selected by cattle grazing leucaena and C4 grasses in northern Australia." Tropical Grasslands-Forrajes Tropicales 7, no. 2 (2019): 189–92. http://dx.doi.org/10.17138/tgft(7)189-192.

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Keynote paper presented at the International Leucaena Conference, 1‒3 November 2018, Brisbane, Queensland, Australia.In Australia’s central and southern Queensland regions, Leucaena leucocephala-grass pastures produce substantially more beef and higher profits than grass-only pastures and annual forage crops. Near infrared reflectance spectroscopy (NIRS) provides a rapid and cost-effective approach to assessing quality of available forage as well as the quality of the diet selected by cattle, but existing calibrations have not been comprehensively validated for leucaena-grass pastures. This st

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Gómez-Astorga, María José, Karolina Villagra-Mendoza, Federico Masís-Meléndez, Aníbal Ruíz-Barquero, and Renato Rimolo-Donadio. "Calibration of Low-Cost Moisture Sensors in a Biochar-Amended Sandy Loam Soil with Different Salinity Levels." Sensors 24, no. 18 (2024): 5958. http://dx.doi.org/10.3390/s24185958.

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With the increasing focus on irrigation management, it is crucial to consider cost-effective alternatives for soil water monitoring, such as multi-point monitoring with low-cost soil moisture sensors. This study assesses the accuracy and functionality of low-cost sensors in a sandy loam (SL) soil amended with biochar at rates of 15.6 and 31.2 tons/ha by calibrating the sensors in the presence of two nitrogen (N) and potassium (K) commercial fertilizers at three salinity levels (non/slightly/moderately) and six soil water contents. Sensors were calibrated across nine SL-soil combinations with b

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Moody, Jordan N., Reid Redden, Faron A. Pfeiffer, Ronald Pope, and John W. Walker. "PSV-15 Using near infrared reflectance spectroscopy to predict lab scoured yield in Rambouillet sheep." Journal of Animal Science 99, Supplement_3 (2021): 303. http://dx.doi.org/10.1093/jas/skab235.558.

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Abstract Lab scoured yield (LSY) is a major indicator of wool quality. LSY is used for the valuation of wool in commercial settings and can be used by growers as selection criteria for breeding stock. Current laboratory methods for LSY are costly and labor intensive. Evaluation of fleece core samples using Near-Infrared Reflectance Spectroscopy (NIR) may present an efficient, cost-effective alternative to predict LSY. Lamb and yearling fleece core samples from flocks originating from Texas were scanned on a FOSS 6500 spectrometer. Constituent data were obtained from the Bill Sims Wool and Moha

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Arrayago, Itsaso, Kim J.R. Rasmussen, and Hao Zhang. "System-based reliability analysis of stainless steel frames subjected to gravity and wind loads." Structural safety 97 (July 1, 2022): 102211. https://doi.org/10.1016/j.strusafe.2022.102211.

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In the process of developing the next generation of design standards for steel structures, most relevant international structural codes including AISC 360, AISC 370, AS/NZS 4100 and Eurocode 3 already incorporate preliminary versions of system-based design-by-analysis approaches that allow a direct evaluation of the strength of steel and stainless steel structures from advanced numerical simulations. As a result, recent research works have focused on building rigorous structural reliability frameworks to investigate acceptable target reliability indices for structural systems and to develop&nb

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Huang, Jinbo, Dejing Kong, and Lirong Cui. "Bayesian reliability assessment and degradation modeling with calibrations and random failure threshold." Journal of Shanghai Jiaotong University (Science) 21, no. 4 (2016): 478–83. http://dx.doi.org/10.1007/s12204-016-1750-z.

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Ascanio-Villabona, Javier, N. Y. Castillo-Leon, Nicolas Orejarena Osorio, Brayan Eduardo Tarazona-Romero, and K. T. Jaimes-Quintero. "Simulation of the energy model of a rural house located in a cold climate using an in-situ monitoring system." Periodicals of Engineering and Natural Sciences (PEN) 12, no. 3 (2024): 595–603. https://doi.org/10.21533/pen.v12.i3.59.

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The energy simulation of buildings is presented as a tool to analyze the comfort, consumption and energy efficiency of buildings, however, the discrepancy between simulated models and real data has been a constant, for this reason, energy model calibrations are performed to increase the reliability of the predictions of the simulation. This research carried out the simulation and calibration of the energy model of a rural house, located in a cold climate at more than 3000 meters above sea level, the study was developed in three phases, starting with the monitoring of climatological variables,

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Wang, Yingxian, Yaokai Liu, Weiwei Zhao, et al. "Time-Series Cross-Radiometric Calibration and Validation of GF-6/WFV Using Multi-Site." Remote Sensing 16, no. 7 (2024): 1287. http://dx.doi.org/10.3390/rs16071287.

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The GaoFen6 (GF-6) satellite, equipped with a wide full-swath (WFV) sensor, offers high spatial resolution and extensive coverage, making it widely utilized in agricultural and forestry classification, land resource monitoring, and other fields. Accurate on-orbit radiometric calibration of GF-6/WFV is crucial for these quantitative applications. Currently, the absolute radiometric calibration of GF-6/WFV relies primarily on vicarious calibration conducted by the China Center for Resources Satellite Data and Application (CRESDA). However, annual vicarious calibration may not adequately capture

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Arrayago, Itsaso, and Kim J.R. Rasmussen. "System-based reliability analysis of stainless steel frames under gravity loads." Engineering Structures 231 (March 1, 2021): 111775. https://doi.org/10.1016/j.engstruct.2020.111775.

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Current structural codes for steel and stainless steel structures such as AISC 360-16, AISC 370-21, AS/NZS 4100 and Eurocode 3 are based on the traditional two-step member-based design approach, in which internal actions are first obtained from a structural analysis, usually elastic, and the strength of each member and connection is subsequently checked using a structural design standard. However, the most recent versions of these standards already incorporate preliminary versions of the direct, or one-step, system-based design alternative, which is based on the design-by-analysis concept and&

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Poller, Leon, Michelle Keown, Nikhil Chauhan, et al. "European Concerted Action on Anticoagulation. Evaluation of a Method for International Sensitivity Index Calibration of Two Point-of-Care Prothrombin Time (PT) Monitoring Systems (CoaguChek Mini and TAS PT-NC) with Fresh Plasmas Based on Whole-Blood Equivalent PT." Clinical Chemistry 48, no. 10 (2002): 1672–80. http://dx.doi.org/10.1093/clinchem/48.10.1672.

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Abstract Background: The International Sensitivity Index (ISI) calibration of whole-blood prothrombin time (PT) monitors for point-of-care testing (POCT) described by Tripodi et al. (Thromb Haemost 1993;70:921–4) has been shown to be dependable but is too complex and demanding. The use of plasma would simplify calibration of whole-blood POCT PT monitors, but important differences may exist between the ISI for whole blood and plasma calibrations. Methods: In a 10-center calibration study of two POCT whole-blood monitoring systems (CoaguChek Mini and TAS PT-NC), we characterized the relationship

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Hong, H. P., and W. Wang. "Design of RC Columns Subjected to Safety Constraint." Advances in Structural Engineering 4, no. 2 (2001): 111–19. http://dx.doi.org/10.1260/1369433011502408.

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Minimum cost design of reinforced concrete columns subjected to reliability constraints is a multi-level optimization problem because both the analysis of minimum cost design, and the estimation of the reliability are nonlinearly constrained optimization problems. A procedure for reliability constrained optimal design of columns is described in this study. It seems that such a design approach is allowed by the current CSA A23.3–94 design code and will become more relevant for an objective-based design code. This design approach ensures that the designed columns meet specified reliability level

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Botsіura, Olesia A., and Igor P. Zakharov. "Improving the reliability of the expanded uncertainty evaluation at calibration of measuring instruments." Metrologiya, no. 2 (June 8, 2020): 3–18. http://dx.doi.org/10.32446/0132-4713.2020-2-3-18.

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The influence of the law of distribution of the measurand on the length parameter for a guard band when assessing compliance is considered. The existing algorithm for expanded measurement uncertainty evaluation described in the current regulatory documents and its shortcomings is analyzed. The features of uncertainty evaluation in calibrations and the possibility of using the kurtosis method for its implementation are investigated. The proposed approach is applied to the examples described in Supplement 2 to the EA-4/02 M:2013.

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Khabaz, Rahim. "Estimation of scattering contribution in the calibration of neutron devices with radionuclide sources in rooms of different sizes." Nuclear Technology and Radiation Protection 30, no. 1 (2015): 47–54. http://dx.doi.org/10.2298/ntrp1501047k.

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Calibrations of neutron devices used in area monitoring are often performed by radionuclide neutron sources. Device readings increase due to neutrons scattered by the surroundings and the air. The influence of said scattering effects have been investigated in this paper by performing Monte Carlo simulations for ten different radionuclide neutron sources inside several sizes of concrete wall spherical rooms (Rsp = 200 to 1500 cm). In order to obtain the parameters that relate the additional contribution from scattered neutrons, calculations using a polynomial fit model were evaluated. Obtained

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Martins, Alexandre, Inácio Fonseca, José Torres Farinha, João Reis, and António J. Marques Cardoso. "Online Monitoring of Sensor Calibration Status to Support Condition-Based Maintenance." Sensors 23, no. 5 (2023): 2402. http://dx.doi.org/10.3390/s23052402.

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Condition-Based Maintenance (CBM), based on sensors, can only be reliable if the data used to extract information are also reliable. Industrial metrology plays a major role in ensuring the quality of the data collected by the sensors. To guarantee that the values collected by the sensors are reliable, it is necessary to have metrological traceability made by successive calibrations from higher standards to the sensors used in the factories. To ensure the reliability of the data, a calibration strategy must be put in place. Usually, sensors are only calibrated on a periodic basis; so, they ofte

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Sena Cardoso, Francisco, Hao Zhang, Kim J. R. Rasmussen, and Shen Yan. "Reliability calibrations for the design of cold-formed steel portal frames by advanced analysis." Engineering Structures 182 (March 2019): 164–71. http://dx.doi.org/10.1016/j.engstruct.2018.12.054.

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Guimarães, Iuli Caetano da Silva Brandão, Thiago Henrique da Silva, Cristina Cirino Picchi, and Romualdo Shigueo Fukushima. "Assessing the Repeatability and Reliability of NIRS to Predict Nutritional Values and to Evaluate Two Lignin Methods in Urochloa spp. Grasses." Grasses 2, no. 2 (2023): 112–26. http://dx.doi.org/10.3390/grasses2020010.

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Reliable forage analysis is crucial for proper ration formulation of ruminant herds. Through its fast, inexpensive, and non-destructive procedures, near-infrared spectroscopy (NIRS) has become a valuable method for forage evaluating. Notwithstanding, NIRS needs calibration before routine analysis. In addition, to evaluate the best method for lignin quantification in Urochloa spp. grasses is crucial under a digestibility perspective in grass-fed ruminant production. The aims of this study were to use 149 samples from different Urochloa species to develop NIRS calibration curves (partial least s

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González Rivero, Rosa Amalia, Luis Ernesto Morera Hernández, Olivier Schalm, et al. "A Low-Cost Calibration Method for Temperature, Relative Humidity, and Carbon Dioxide Sensors Used in Air Quality Monitoring Systems." Atmosphere 14, no. 2 (2023): 191. http://dx.doi.org/10.3390/atmos14020191.

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Low-cost sensors provide an affordable alternative to monitor environmental parameters with acceptable performance. There is a substantial amount of literature where low-cost sensors are compared with high-end reference measurements. However, not all organizations have access to such reference infrastructure. We propose low-cost calibration methods for temperature, relative humidity, and CO2 to allow them to collect their own reliable data. These methods are based on simple techniques and procedures that allow temperature calibration to be achieved in the range of 0 to 50 °C, relative humidity

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Chen, Aobei, Dapeng Li, Dezhi Zheng, Zhongxiang Li, and Rui Na. "A Fast Calibration Method for Sensors of Atmospheric Detection System." Applied Sciences 12, no. 22 (2022): 11733. http://dx.doi.org/10.3390/app122211733.

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To meet the needs of a large number of high-altitude meteorological detections, we need to perform fast, high-precision, and high-reliability calibrations of the sensors in the atmospheric detection system (ADS). However, using the traditional method to calibrate the sensor with high precision often takes a lot of time and increases the cost of workforce and material resources. Therefore, a method for realizing fast sensor calibration under the current system hardware conditions is required. A physical field model of Tube–Air–ADS is proposed for the first time, and the transfer function is obt

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Alla, Fouzia, Kawtar Jdaini, Hanane M’hamdi, et al. "Calibration of Thermal Dissipation Probes for Date Palm (Phoenix dactylifera L.)." Horticulturae 8, no. 2 (2022): 107. http://dx.doi.org/10.3390/horticulturae8020107.

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The quantification of water flow through the stem is vital for date palm (Phoenix dactylifera L.) to promote a good water stress management. The thermal dissipation probe (TDP) method developed by Granier is widely used to evaluate transpiration of forest trees; however, there are contradictory reports regarding its reliability. Considerable errors in estimated sap flux density, which might be due to a lack ofspecies-specific calibrations. The TDP method uses a mathematical model that is based on an empirical equation to estimate sap flux density, which is claimed to be applicable to all tree

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Schünemann, Alexander Leonard, and Matthias Ziegler. "“Use the Force!” Adaptation of Response Formats." Psychological Test Adaptation and Development 4, no. 1 (2023): 218–34. http://dx.doi.org/10.1027/2698-1866/a000044.

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Abstract. The present paper features the adaptation of an existing Big Five questionnaire with a rating scale (RS) response format into a measure using a multidimensional forced choice (MFC) response format. Rating scale response formats have been criticized for their proneness to intentional and unintentional response distortions. Multidimensional forced choice response formats were suggested as a solution to mitigate several types of response sets and response styles by design. The Big Five Inventory of Personality in Occupational Situations (B5PS) is a situation-based questionnaire designed

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Kong, Dejing, Chengwei Qin, Yong He, and Lirong Cui. "Sensor-based calibrations to improve reliability of systems subject to multiple dependent competing failure processes." Reliability Engineering & System Safety 160 (April 2017): 101–13. http://dx.doi.org/10.1016/j.ress.2016.12.007.

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Liu, Wei, Fangming Qian, Yuzhe Miao, and Rongjian Wang. "A METHOD FOR SELF-CALIBRATION IN SATELLITE WITH HIGH PRECISION OF SPACE LINEAR ARRAY CAMERA." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B1 (June 3, 2016): 361–64. http://dx.doi.org/10.5194/isprsarchives-xli-b1-361-2016.

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At present, the on-orbit calibration of the geometric parameters of a space surveying camera is usually processed by data from a ground calibration field after capturing the images. The entire process is very complicated and lengthy and cannot monitor and calibrate the geometric parameters in real time. On the basis of a large number of on-orbit calibrations, we found that owing to the influence of many factors, e.g., weather, it is often difficult to capture images of the ground calibration field. Thus, regular calibration using field data cannot be ensured. This article proposes a real time

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Liu, Wei, Fangming Qian, Yuzhe Miao, and Rongjian Wang. "A METHOD FOR SELF-CALIBRATION IN SATELLITE WITH HIGH PRECISION OF SPACE LINEAR ARRAY CAMERA." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B1 (June 3, 2016): 361–64. http://dx.doi.org/10.5194/isprs-archives-xli-b1-361-2016.

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At present, the on-orbit calibration of the geometric parameters of a space surveying camera is usually processed by data from a ground calibration field after capturing the images. The entire process is very complicated and lengthy and cannot monitor and calibrate the geometric parameters in real time. On the basis of a large number of on-orbit calibrations, we found that owing to the influence of many factors, e.g., weather, it is often difficult to capture images of the ground calibration field. Thus, regular calibration using field data cannot be ensured. This article proposes a real time

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Saretta, Ezequiel, Antonio P. de Camargo, Tarlei A. Botrel, Marinaldo F. Pinto, Geancarlo T. Katsurayama, and José A. Frizone. "Development and evaluation of an automated system for testing current meters." Revista Brasileira de Engenharia Agrícola e Ambiental 20, no. 2 (2016): 181–87. http://dx.doi.org/10.1590/1807-1929/agriambi.v20n2p181-187.

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ABSTRACT Current meters are equipment widely used for estimating flow velocity in rivers and streams. Periodic calibrations of current meters are important to ensure the quality of measurements, but the required testing facilities are complex and only available in a few institutions. However, advances in electronics and automation may contribute to developing simple and reliable calibration systems. Thus, this study aimed to develop an automated system for testing current meters, which consisted of a trapezoidal channel, a step motor, a tow car and a management system, composed of a supervisor

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Cuesta, Eduardo, Braulio Alvarez, Fernando Sanchez-Lasheras, and Daniel Gonzalez-Madruga. "A Statistical Approach To Prediction Of The CMM Drift Behaviour Using A Calibrated Mechanical Artefact." Metrology and Measurement Systems 22, no. 3 (2015): 417–28. http://dx.doi.org/10.1515/mms-2015-0033.

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Abstract This paper presents a multivariate regression predictive model of drift on the Coordinate Measuring Machine (CMM) behaviour. Evaluation tests on a CMM with a multi-step gauge were carried out following an extended version of an ISO evaluation procedure with a periodicity of at least once a week and during more than five months. This test procedure consists in measuring the gauge for several range volumes, spatial locations, distances and repetitions. The procedure, environment conditions and even the gauge have been kept invariables, so a massive measurement dataset was collected over

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Eitelwein, Mateus Tonini, Tiago Rodrigues Tavares, José Paulo Molin, Rodrigo Gonçalves Trevisan, Rafael Vieira de Sousa, and José Alexandre Melo Demattê. "Predictive Performance of Mobile Vis–NIR Spectroscopy for Mapping Key Fertility Attributes in Tropical Soils through Local Models Using PLS and ANN." Automation 3, no. 1 (2022): 116–31. http://dx.doi.org/10.3390/automation3010006.

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Mapping soil fertility attributes at fine spatial resolution is crucial for site-specific management in precision agriculture. This paper evaluated the performance of mobile measurements using visible and near-infrared spectroscopy (vis–NIR) to predict and map key fertility attributes in tropical soils through local data modeling with partial least squares regression (PLS) and artificial neural network (ANN). Models were calibrated and tested in a calibration area (18-ha) with high spatial variability of soil attributes and then extrapolated in the entire field (138-ha). The models calibrated

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Nezakati, Ensiyeh, Mostafa Razmkhah, and Firoozeh Haghighi. "Reliability analysis of a k-out-of-n:F system under a linear degradation model with calibrations." Annals of the Institute of Statistical Mathematics 71, no. 3 (2018): 537–52. http://dx.doi.org/10.1007/s10463-018-0650-4.

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Velychko, Oleh, Vasyl Dovhan, Denys Nikitenko, and Jaroslav Brezytskyi. "LINKING OF ROUNDS RESULTS OF INTERLABORATORY COMPARISONS ON CALIBRATION OF ELECTRICAL RESISTANCE MEASURES ON A DIRECT CURRENT Primary tabs." Measuring Equipment and Metrology 85, no. 2 (2024): 46–53. http://dx.doi.org/10.23939/istcmtm2024.02.046.

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Interlaboratory comparisons (ILC) are used to evaluate and confirm measurements' accuracy, reliability, and reproducibility. ILCs are conducted for both testing and calibration laboratories (CL). They are comparing the results of measurements or calibrations obtained by different laboratories. The main stages of confirming the competence of laboratories include accreditation as the first step of such confirmation, as well as periodic participation in the ILCs. This is the basis for confirmation of the competence of laboratories and contributes to increasing confidence in the data obtained in t

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Banaszak, David. "End-to-End Mechanical Calibration of Strain Channels in Dynamic Health Monitoring Systems." Journal of the IEST 45, no. 1 (2002): 113–20. http://dx.doi.org/10.17764/jiet.45.1.724270g325661067.

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The U.S. Air Force invented a calibration technique that allows one person to perform multiple, mechanical end-to-end calibrations of structural dynamics measurement systems. In Order to define the vibrations and acoustics environment, often an aircraft or engine structural health monitoring system collects airframe or engine structural integrity data. A recommended practice is to perform an end-to-end mechanical calibration of the system. This means a full calibration of instrumentation from the physical input to the transducer to the output where the analog or digital signal is normally anal

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Popov, V. S., N. G. Konkova, T. V. Shelenga, et al. "Rapid assessment of main agronomic indicators in the grain of winter and spring forms of triticale using infrared spectroscopy." Proceedings on applied botany, genetics and breeding 185, no. 3 (2024): 61–70. http://dx.doi.org/10.30901/2227-8834-2024-3-61-70.

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Background. Calibration models were developed for rapid assessment of crucial agronomic indicators in the grain of winter and spring triticale from the VIR collection using near-infrared spectroscopy (NIRS). These calibration models will enable users to find the most optimal utilization trends for individual triticale accessions. Materials and methods. Indicators of agronomic value (coloration, moisture, and the content of ash, protein, starch, amylose and fiber) were studied on a set of 32 grain samples collected from winter and spring triticale forms (Triticosecale Wittm. & A. Camus) rep

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