Log in

Relevant bibliographies by topics / Quantification des sources / Journal articles

To see the other types of publications on this topic, follow the link: Quantification des sources.

Journal articles on the topic 'Quantification des sources'

Author: Grafiati

Published: 25 May 2024

Last updated: 19 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Quantification des sources.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Bielek, Boris, and Milan Bielek. "Common Characteristics of Zero Energy Buildings in Relation to the Energy Distribution Networks." Advanced Materials Research 855 (December 2013): 31–34. http://dx.doi.org/10.4028/www.scientific.net/amr.855.31.

Full text

Abstract:

Physical quantification of the building envelope. Energy quantification of the building. Energy from fossil sources. Energy from ecologically clean renewable sources. Nearly net zero energy buildings. Net zero energy buildings. Net plus energy buildings. The characteristics of zero energy buildings in relation to the energy distribution networks. Requirements for physical quantification of buildings with a zero energy balance in relation to energy distribution networks.

APA, Harvard, Vancouver, ISO, and other styles

2

Ferguson, Christobel M., Katrina Charles, and Daniel A. Deere. "Quantification of Microbial Sources in Drinking-Water Catchments." Critical Reviews in Environmental Science and Technology 39, no. 1 (2008): 1–40. http://dx.doi.org/10.1080/10643380701413294.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Angerer, Jürgen. "Sources and quantification of human backgroudexposure to acrylamide." Toxicology Letters 180 (October 2008): S24—S25. http://dx.doi.org/10.1016/j.toxlet.2008.06.707.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Czerewko, M. A., J. C. Cripps, J. M. Reid, and C. G. Duffell. "Sulfur species in geological materials––sources and quantification." Cement and Concrete Composites 25, no. 7 (2003): 657–71. http://dx.doi.org/10.1016/s0958-9465(02)00066-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Clark, Ephraim, and Radu Tunaru. "Quantification of political risk with multiple dependent sources." Journal of Economics and Finance 27, no. 2 (2003): 125–35. http://dx.doi.org/10.1007/bf02827214.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Yang, Jian-Ping, Hong-Zhong Huang, Yu Liu, and Yan-Feng Li. "Quantification Classification Algorithm of Multiple Sources of Evidence." International Journal of Information Technology & Decision Making 14, no. 05 (2015): 1017–34. http://dx.doi.org/10.1142/s0219622014500242.

Full text

Abstract:

Although Dempster–Shafer (D–S) evidence theory and its reasoning mechanism can deal with imprecise and uncertain information by combining cumulative evidences for changing prior opinions of new evidences, there is a deficiency in applying classical D–S evidence theory combination rule when conflict evidence appear — conflict evidence causes counter-intuitive results. To address this issue, alternative combination rules have been proposed for resolving the appeared conflicts of evidence. An underlying assumption is that conflict evidences exist, which, however, is not always true. Moreover, it has been verified that conflict factors may not be accurate to characterize the degree of conflict. Instead, the Jousselme distance has been regarded as a quantification criterion for the degree of conflict because of its promising properties. To avoid the counter-intuitive results, multiple sources of evidence should be classified first. This paper proposes a novel algorithm to quantify the classification of multiple sources of evidence based on a core vector method, and the algorithm is further verified by two examples. This study also explores the relationship between complementary information and conflicting evidence and discusses the stochastic interpretation of basic probability assignment functions.

APA, Harvard, Vancouver, ISO, and other styles

7

Brereton, Carol A., Lucy J. Campbell, and Matthew R. Johnson. "Computationally efficient quantification of unknown fugitive emissions sources." Atmospheric Environment: X 3 (July 2019): 100035. http://dx.doi.org/10.1016/j.aeaoa.2019.100035.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Nafziger, Steven. "Quantification and the Economic History of Imperial Russia." Slavic Review 76, no. 1 (2017): 30–36. http://dx.doi.org/10.1017/slr.2017.5.

Full text

Abstract:

Historians work with sources that are products of specific social, cultural, political, and economic contexts. Thus, understanding how and why sources were produced and why they survived is an essential component of historical scholarship. At the same time, many historians often employ some sort of conceptual framework—implicit or explicit, descriptive or normative—in order to translate the sources into a coherent narrative. Modern economic historians are no different. The sources tend to be quantitative and focused on economic phenomena (with many exceptions), but doing economic history well means interrogating the origins, trustworthiness, and usefulness of the data in question. In doing this, modern economic historians are largely unapologetic about employing the tools—especially statistical—and intellectual apparatus of economics to interrogate their sources, much as social, political, or environmental historians draw on ideas and methods from related disciplines in their own inquiries. This is precisely how we make sense of the historical process of economic development.

APA, Harvard, Vancouver, ISO, and other styles

9

Bruno, Jack H., Dylan Jervis, Daniel J. Varon, and Daniel J. Jacob. "U-Plume: automated algorithm for plume detection and source quantification by satellite point-source imagers." Atmospheric Measurement Techniques 17, no. 9 (2024): 2625–36. http://dx.doi.org/10.5194/amt-17-2625-2024.

Full text

Abstract:

Abstract. Current methods for detecting atmospheric plumes and inferring point-source rates from high-resolution satellite imagery are labor-intensive and not scalable with regard to the growing satellite dataset available for methane point sources. Here, we present a two-step algorithm called U-Plume for automated detection and quantification of point sources from satellite imagery. The first step delivers plume detection and delineation (masking) with a U-Net machine learning architecture for image segmentation. The second step quantifies the point-source rate from the masked plume using wind speed information and either a convolutional neural network (CNN) or a physics-based integrated mass enhancement (IME) method. The algorithm can process 62 images (each measuring 128 pixels × 128 pixels) per second on a single 2.6 GHz Intel Core i7-9750H CPU. We train the algorithm using large-eddy simulations of methane plumes superimposed on noisy and variable methane background scenes from the GHGSat-C1 satellite instrument. We introduce the concept of point-source observability, Ops=Q/(UWΔB), as a single dimensionless number to predict plume detectability and source rate quantification error from an instrument as a function of source rate Q, wind speed U, instrument pixel size W, and instrument-dependent background noise ΔB. We show that Ops can powerfully diagnose the ability of an imaging instrument to observe point sources of a certain magnitude under given conditions. U-Plume successfully detects and masks plumes from sources as small as 100 kg h−1 in GHGSat-C1 images over surfaces with low background noise and successfully handles larger point sources over surfaces with substantial background noise. We find that the IME method for source quantification is unbiased over the full range of source rates, while the CNN method is biased towards the mean of its training range. The total error in source rate quantification is dominated by wind speed at low wind speeds and by the masking algorithm at high wind speeds. A wind speed of 2–4 m s−1 is optimal for detection and quantification of point sources from satellite data.

APA, Harvard, Vancouver, ISO, and other styles

10

Häupl, Peter, and Frank Hansel. "Quantification of the internal space climate." MATEC Web of Conferences 174 (2018): 01003. http://dx.doi.org/10.1051/matecconf/201817401003.

Full text

Abstract:

A practicable model and program CLIMT is put forward for determining the hourly values of indoor air temperature and the interior air humidity in relation to the external climate, the building parameters (geometry, material properties), the ventilation and the use of the internal space (interior heat sources, moisture sources and heating system). In order to generate the outdoor climatic dates (temperature, relative humidity, short and long wave radiation, precipitation, wind velocity and direction, driving rain) for the simulation a climate generator CLIG has been developed additionally. The results have been validated with measurements in actual buildings.

APA, Harvard, Vancouver, ISO, and other styles

11

Méndez, M., M. Perdomo, D. Pose, C. Lindner, J. Torres, and A. Laborde. "Montevideo's health care centers, mercury sources identification and quantification." Toxicology Letters 259 (October 2016): S123. http://dx.doi.org/10.1016/j.toxlet.2016.07.316.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

McAuley, Grant, Matthew Schrag, Pál Sipos, et al. "Quantification of punctate iron sources using magnetic resonance phase." Magnetic Resonance in Medicine 63, no. 1 (2009): 106–15. http://dx.doi.org/10.1002/mrm.22185.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Gerstoft, Peter, and Ishan D. Khurjekar. "Uncertainty quantification for acoustical problems." Journal of the Acoustical Society of America 155, no. 3_Supplement (2024): A213. http://dx.doi.org/10.1121/10.0027342.

Full text

Abstract:

Acoustical parameter estimation is a routine task in many domains and is typically done using signal processing methods. The performance of existing estimation methods is affected due to external uncertainty and yet the methods provide no measure of confidence in the outputs. Hence it is crucial to quantify uncertainty in the estimates before real-world deployment. Conformal prediction is a simple method to obtain statistically valid prediction intervals from an estimation model. In this work, conformal prediction is used for obtaining statistically valid uncertainty intervals for various acoustical parameter estimation tasks. We consider the tasks of DOA estimation and localization of one or more sources in an acoustical environment. The performance is validated on plane wave data with different sources of uncertainty including ambient noise, interference, and sensor location uncertainty, using statistical metrics. Results demonstrate that conformal prediction is a suitable and easy-to-use technique to generate statistically valid uncertainty quantification for acoustical estimation tasks.

APA, Harvard, Vancouver, ISO, and other styles

14

Hayward, Kristen M., Michelle P. Harwood, Stephen C. Lougheed, Zhengxin Sun, Peter Van Coeverden de Groot, and Evelyn L. Jensen. "A real-time PCR assay to accurately quantify polar bear DNA in fecal extracts." PeerJ 8 (April 7, 2020): e8884. http://dx.doi.org/10.7717/peerj.8884.

Full text

Abstract:

DNA extracted from fecal samples contains DNA from the focal species, food, bacteria and pathogens. Most DNA quantification methods measure total DNA and cannot differentiate among sources. Despite the desirability of noninvasive fecal sampling for studying wildlife populations, low amounts of focal species DNA make it difficult to use for next-generation sequencing (NGS), where accurate DNA quantification is critical for normalization. Two factors are required prior to using fecal samples in NGS libraries: (1) an accurate quantification method for the amount of target DNA and (2) a determination of the relative amount of target DNA needed for successful single nucleotide polymorphism genotyping assays. Here, we address these needs by developing primers to amplify a 101 bp region of the nuclear F2 gene and a quantitative PCR (qPCR) assay that allows the accurate quantification of the amount of polar bear (Ursus maritimus) DNA in fecal extracts. We test the assay on pure polar bear DNA extracted from muscle tissue and find a high correlation between fluorometric and qPCR quantifications. The qPCR assay was also successfully used to quantify the amount of DNA derived from polar bears in fecal extractions. Orthologs of the F2 gene have been identified across vertebrates; thus, similar qPCR assays could be developed for other species to enable noninvasive studies.

APA, Harvard, Vancouver, ISO, and other styles

15

Chen, Yuan, Yuwei Zhou, Weimin Feng, Yuan Fang, and Anqi Feng. "Factors That Influence the Quantification of the Embodied Carbon Emission of Prefabricated Buildings: A Systematic Review, Meta-Analysis and the Way Forward." Buildings 12, no. 8 (2022): 1265. http://dx.doi.org/10.3390/buildings12081265.

Full text

Abstract:

Prefabricated buildings and off-site construction are increasingly adopted in modern construction. As one of the most concerning environmental impacts, the embodied carbon emission of prefabricated buildings has been extensively investigated in recent years. Due to the various influencing factors of carbon quantification, such as building characteristics, quantification boundary, emission sources, and quantification methods, no consensus has been reached so far. The impacts of the influencing factors on carbon quantification remain unclear. To fill this gap, this paper provides a systematic review and meta-analysis to comprehensively evaluate the recent research concerning the quantification of the embodied carbon emission of prefabricated buildings. In total, 43 peer-reviewed articles (96 building cases) were screened and analyzed. Twelve influencing factors of embodied carbon quantification have been identified and analyzed to give rise to a synthesized conclusion. The results of the meta-analysis indicated that the embodied carbon emission of prefabricated buildings varied significantly from 26.6 to 1644.4 kgCO2e/m2 in the reviewed literature. The results showed that some of the quantification factors could significantly influence the quantification results, such as the building structure forms, level of prefabrication, type of greenhouse gas considered, and data sources, while some factors have a lesser impact on carbon quantification results, such as the function of the building, quantification methods adopted, quantification tools/software used, and carbon inventory databases applied. The findings of this research provide readers with an in-depth and critical understanding of the quantification of the embodied carbon emission of prefabricated buildings. Research gaps and suggestions for future research are also provided based on the results of this work.

APA, Harvard, Vancouver, ISO, and other styles

16

Arahchige, Buddhi, and Suresh Perinpanayagam. "Uncertainty quantification in aircraft gas turbine engines." Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 232, no. 9 (2017): 1628–38. http://dx.doi.org/10.1177/0954410017699001.

Full text

Abstract:

In a complex system like the jet engine, engine variables are affected by many systems making fault identification difficult. Therefore, Prognostics and Health Management Systems should be able to factor in the different sources of uncertainty. The different sources of uncertainty integral to diagnostics and prognostics must be accounted for in a probabilistic method for the approach to make any sense. This article aims to address the effect of uncertainty mainly in the form of random sensor noise on the modelled CFM56-7B27 engine output variables. Statistical Interpretations are utilised to investigate this random noise effect.

APA, Harvard, Vancouver, ISO, and other styles

17

Ramsey, Michael H. "Sampling as a source of measurement uncertainty: techniques for quantification and comparison with analytical sources." Journal of Analytical Atomic Spectrometry 13, no. 2 (1998): 97–104. http://dx.doi.org/10.1039/a706815h.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Kamstra, Haye, Erik Wilmes, and Frans C. T. van der Helm. "Quantification of Error Sources with Inertial Measurement Units in Sports." Sensors 22, no. 24 (2022): 9765. http://dx.doi.org/10.3390/s22249765.

Full text

Abstract:

Background: Inertial measurement units (IMUs) offer the possibility to capture the lower body motions of players of outdoor team sports. However, various sources of error are present when using IMUs: the definition of the body frames, the soft tissue artefact (STA) and the orientation filter. Methods to minimize these errors are currently being used without knowing their exact influence on the various sources of errors. The goal of this study was to present a method to quantify each of the sources of error of an IMU separately. Methods: An optoelectronic system was used as a gold standard. Rigid marker clusters (RMCs) were designed to construct a rigid connection between the IMU and four markers. This allowed for the separate quantification of each of the sources of error. Ten subjects performed nine different football-specific movements, varying both in the type of movement, and in movement intensity. Results: The error of the definition of the body frames (11.3–18.7 deg RMSD), the STA (3.8–9.1 deg RMSD) and the error of the orientation filter (3.0–12.7 deg RMSD) were all quantified separately for each body segment. Conclusions: The error sources of IMU-based motion analysis were quantified separately. This allows future studies to quantify and optimize the effects of error reduction techniques.

APA, Harvard, Vancouver, ISO, and other styles

19

Skybova, Marie. "Quantification, Sources, and Control of Ammonia Emissions in the Czech Republic." Scientific World JOURNAL 1 (2001): 363–70. http://dx.doi.org/10.1100/tsw.2001.382.

Full text

Abstract:

The exact quantification of ammonia (NH3) emissions is the basic presumption for the fulfilment of obligations set by the CLRTAP (Convention on Long Range Transboundary Air Pollution) Protocol which was signed by the Czech Republic in 1999. Most NH3emissions in the Czech Republic are produced during the breeding of cattle, pigs, and poultry; therefore, determinating emission factors for these kinds of animals by studying their total number, type of breeding, and subsequent disposal of manure is the solution to the problem of NH3emissions quantification. This paper summarizes the results of 4 years of research in this area, determining the emission factors and ways of decreasing emissions from the breeding of cattle, pigs, and poultry.

APA, Harvard, Vancouver, ISO, and other styles

20

Chiementin, X., F. Bolaers, J. P. Dron, and L. Rasolofondraibe. "Inverse Approach to the Reconstruction and Quantification of Vibratory Sources." Journal of Vibration and Control 13, no. 8 (2007): 1169–90. http://dx.doi.org/10.1177/1077546307076889.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Spassov, S., R. Egli, F. Heller, D. K. Nourgaliev, and J. Hannam. "Magnetic quantification of urban pollution sources in atmospheric particulate matter." Geophysical Journal International 159, no. 2 (2004): 555–64. http://dx.doi.org/10.1111/j.1365-246x.2004.02438.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Long, James, Will Long, Nick Bottenus, and Gregg Trahey. "Coherence-based quantification of acoustic clutter sources in medical ultrasound." Journal of the Acoustical Society of America 148, no. 4 (2020): 2486–87. http://dx.doi.org/10.1121/1.5146891.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Long, James, Will Long, Nick Bottenus, and Gregg Trahey. "Coherence-based quantification of acoustic clutter sources in medical ultrasound." Journal of the Acoustical Society of America 148, no. 2 (2020): 1051–62. http://dx.doi.org/10.1121/10.0001790.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Tian, Hanqin, Rongting Xu, Josep G. Canadell, et al. "A comprehensive quantification of global nitrous oxide sources and sinks." Nature 586, no. 7828 (2020): 248–56. http://dx.doi.org/10.1038/s41586-020-2780-0.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Conway, Tim M., and Seth G. John. "Quantification of dissolved iron sources to the North Atlantic Ocean." Nature 511, no. 7508 (2014): 212–15. http://dx.doi.org/10.1038/nature13482.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Smidts, C., and D. Sova. "An architectural model for software reliability quantification: sources of data." Reliability Engineering & System Safety 64, no. 2 (1999): 279–90. http://dx.doi.org/10.1016/s0951-8320(98)00068-4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Liu, Xi, Rongqiao Wang, Dianyin Hu, and Gaoxiang Chen. "Rigorous uncertainty quantification with correlated random variables from multiple sources." Engineering Failure Analysis 121 (March 2021): 105114. http://dx.doi.org/10.1016/j.engfailanal.2020.105114.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Blaauw, M., M. J. J. Ammerlaan, and P. Bode. "Quantification of some sources of variation in neutron activation analysis." Applied Radiation and Isotopes 44, no. 3 (1993): 547–51. http://dx.doi.org/10.1016/0969-8043(93)90168-a.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Oerlemans, S., P. Sijtsma, and B. Méndez López. "Location and quantification of noise sources on a wind turbine." Journal of Sound and Vibration 299, no. 4-5 (2007): 869–83. http://dx.doi.org/10.1016/j.jsv.2006.07.032.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Crowther, Ashley R., Carrie Janello, and Rajendra Singh. "Quantification of clearance-induced impulsive sources in a torsional system." Journal of Sound and Vibration 307, no. 3-5 (2007): 428–51. http://dx.doi.org/10.1016/j.jsv.2007.05.055.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Dean, Kirk E., James M. Patek, and Mel A. Vargas. "TOOLS TO ASSIST IDENTIFICATION AND QUANTIFICATION OF INDICATOR BACTERIAL SOURCES." Proceedings of the Water Environment Federation 2005, no. 8 (2005): 7179–89. http://dx.doi.org/10.2175/193864705783858648.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Robinson, R. Bruce, and Brian T. Hurst. "Statistical Quantification of the Sources of Variance in Uncertainty Analyses." Risk Analysis 17, no. 4 (1997): 447–53. http://dx.doi.org/10.1111/j.1539-6924.1997.tb00885.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Hellar-Kihampa, Harieth. "Quantification of micropollutants in some water sources in northern Tanzania." Journal of Applied Sciences and Environmental Management 20, no. 3 (2016): 549. http://dx.doi.org/10.4314/jasem.v20i3.8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Brumovsky, L. A., J. O. Brumovsky, M. R. Fretes, and J. M. Peralta. "Quantification of Resistant Starch in Several Starch Sources Treated Thermally." International Journal of Food Properties 12, no. 3 (2009): 451–60. http://dx.doi.org/10.1080/10942910701867673.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Koopmann, Inga K., Annemarie Kramer, and Antje Labes. "Development and validation of reliable astaxanthin quantification from natural sources." PLOS ONE 17, no. 12 (2022): e0278504. http://dx.doi.org/10.1371/journal.pone.0278504.

Full text

Abstract:

Astaxanthin derived from natural sources occurs in the form of various esters and stereomers, which complicates its quantitative and qualitative analysis. To simplify and standardize astaxanthin measurement with high precision, an enzymolysis-based astaxanthin quantification method was developed to hydrolyze astaxanthin esters and determine free astaxanthin in all its diastereomeric forms. Astaxanthin standards and differently processed Haematococcus pluvialis biomass were investigated. Linear correlation of standards of all-E-astaxanthin was observed in a measurement range between extract concentrations of 1.0 μg/mL and 11.2 μg/mL with a coefficient of variation below 5%. The diastereomers 9Z-, and 13Z-astaxanthin, and two di-Z-forms were detected. In contrast to the measurement of standards, the observed measurement range was extended to 30 μg/mL in extracts from H. pluvialis. The nature of the sample had to be taken into account for measurement, as cell, respectively, sample composition altered the optimal concentration for astaxanthin determination. The measurement precision of all-E-astaxanthin quantification in dried H. pluvialis biomass (1.2–1.8 mg dried biomass per sample) was calculated with a coefficient of variation of maximum 1.1%, whereas it was below 10% regarding the diastereomers. Complete enzymolysis was performed with 1.0 to 2.0 units of cholesterol esterase in the presence of various solvents with up to 2.0 mg biomass (dry weight). The method was compared with other astaxanthin determination approaches in which astaxanthin is converted to acetone in a further step before measurement. The developed method resulted in a higher total astaxanthin recovery but lower selectivity of the diastereomers. The reliability of photometric astaxanthin estimations was assessed by comparing them with the developed chromatographic method. At later stages in the cell cycle of H. pluvialis, all methods yielded similar results (down to 0.1% deviation), but photometry lost precision at earlier stages (up to 31.5% deviation). To optimize sample storage, the shelf life of astaxanthin-containing samples was investigated. Temperatures below -20°C, excluding oxygen, and storing intact H. pluvialis cells instead of dried or disrupted biomass reduced astaxanthin degradation.

APA, Harvard, Vancouver, ISO, and other styles

36

Helmers, Eckard, and Klaus Kümmerer. "Anthropogenic platinum fluxes: Quantification of sources and sinks, and outlook." Environmental Science and Pollution Research 6, no. 1 (1999): 29–36. http://dx.doi.org/10.1007/bf02987118.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Manguy, Jean, Georgios I. Papoutsidakis, Ben Doyle, and Sanja Trajkovic. "Quantification of Peptides in Food Hydrolysate from Vicia faba." Foods 14, no. 7 (2025): 1180. https://doi.org/10.3390/foods14071180.

Full text

Abstract:

The hydrolysis of raw food sources by commercially available food-grade enzymes releases thousands of peptides. The full characterization of bioactive hydrolysates requires robust methods to identify and quantify key peptides in these food sources. For this purpose, the absolute quantification of specific peptides, part of a complex peptide network, is necessary. Protein quantification with synthetic tryptic peptides as internal standards is a well-known approach, yet the quantification of non-tryptic peptides contained in food hydrolysates is still largely unaddressed. Similarly, data analyses focus on proteomic applications, thus adding challenges to the study of specific peptides of interest. This paper presents an in-sample calibration curve methodology for the identification of three non-tryptic peptides present in a Vicia faba food hydrolysate (PeptiStrong™) using heavy synthetic peptides as both calibrants and internal standards.

APA, Harvard, Vancouver, ISO, and other styles

38

Zolani, Ndlovu. "Assessing the role of area sources in air quality: A comprehensive review." World Journal of Advanced Research and Reviews 23, no. 2 (2024): 1462–72. https://doi.org/10.5281/zenodo.14859427.

Full text

Abstract:

Air pollution poses significant challenges to environmental quality and public health. The array of factors contributing to air pollution necessitates a focus on three primary source categories namely point sources, mobile sources, and area sources. Point sources, typified by industrial facilities and power plants, emit pollutants from stationary positions, facilitating monitoring and regulatory interventions. Conversely, mobile sources including vehicles and aircraft, which emit pollutants while in motion, present a level of logistical challenges for control measures. Area sources, encompassing diffuse emissions from various activities such as agriculture, residential heating, and small-scale industry, present distinctive challenges in quantification and regulation due to their dispersed nature. Despite their substantial contribution to overall pollution levels, area sources have historically received less attention from researchers and regulators. The way to understand area sources is to use models for the other two, therefore, emphasizing the significance of studying area sources more comprehensively, this summary underscores the necessity of developing improved methodologies for assessing and mitigating their emissions.

APA, Harvard, Vancouver, ISO, and other styles

39

Allen, Steven P. "Detection and quantification of bubble activity in therapeutic ultrasound: Magnetic resonance imaging for cavitation detection and quantification." Journal of the Acoustical Society of America 152, no. 4 (2022): A215. http://dx.doi.org/10.1121/10.0016056.

Full text

Abstract:

For some applications of therapeutic ultrasound, magnetic resonance imaging (MRI) may serve as a useful tool for detecting, measuring, and quantifying cavitation activity—especially in cases where direct sampling of acoustic emissions are difficult. Doing so can be challenging because the physical phenomena that drive ultrasonic cavitation (e.g., pressure, surface tension, micro-second time scales) have little overlap with the phenomena that drive MRI (e.g., quantum spin, Faraday induction, milli-second time scales). However, this same principle also protects MRI-based cavitation detection from common confounds that plague traditional direct acoustic detection. The proposed paper will first review known methods for encoding cavitation behavior into MR images. These methods generally employ one of two strategies: (1) Encode transient cavitation activities into otherwise approximately static MR signal sources.; and (2) Leverage the time-average effects of many, many cycles of cavitation activity to alter MR signal sources. This paper will then discuss how these methods may be useful to therapeutic ultrasound applications. Finally, this paper will pose opportunities for future development.

APA, Harvard, Vancouver, ISO, and other styles

40

Adatrao, S., and A. Sciacchitano. "Survey On PIV Errors And Uncertainty Quantification." Proceedings of the International Symposium on the Application of Laser and Imaging Techniques to Fluid Mechanics 20 (July 11, 2022): 1–12. http://dx.doi.org/10.55037/lxlaser.20th.56.

Full text

Abstract:

A survey on PIV error sources and uncertainty quantification (UQ) is performed. The aim of the survey is to understand how users and researchers in academia and industry perceive the PIV technique, especially for what concerns the measurement errors and uncertainties. A questionnaire is designed to determine the respondents’ areas of work/research, type of PIV setup they typically employ, flow properties they measure, challenges they encounter, most significant error sources and their UQ strategies. Over 100 respondents have provided valuable answers to the questions and supporting explanations. The responses are analyzed both quantitatively and qualitatively. The quantitative results are presented in form of figures, such as pie charts, bar graphs, bubble plots, and are supported by the analysis of the descriptive answers from the respondents. Overall, this work not only provides a picture of the current status of PIV perceived by the users and researchers but also highlights areas where further development is needed. To participate in the survey, follow the link- https://forms.gle/gxhD9CcKGFSBpNqW8

APA, Harvard, Vancouver, ISO, and other styles

41

Mishra, Sudeep, Neelam Richhariya, Rachana Rani, and Lalitesh K Thakur. "Uncertanity of Measurement During Estimation of 23 Organophosphorus Pesticides Residue Present in Bottle Gourd." Journal of Forensic Chemistry and Toxicology 5, no. 2 (2019): 131–36. http://dx.doi.org/10.21088/jfct.2454.9363.5219.6.

Full text

Abstract:

46The study presents the assessment of uncertainty calculation generated, within the analysis of selected 23 organophosphrus pesticides residues of bottle guard. The samples were prepared by using a modified quick, easy, cheap, effective, rugged and safe (QuEChERS) analytical protocol. Multiresidue method used for analysis of samples consisted of (i) acetonitrile extraction, (ii) PSA/C18 clean-up and (iii) identification/quantification of residues by GC utilizing either (nitrogen–phosphorus) or mass-selective detectors (quadrupole analyzer) were evaluated. Major sources like weighing of standard, purity of certified reference material, precision study i.e repeatability and standard solution preparation for calculation of uncertainty of method, was considered. Identification of uncertainty sources, quantification of uncertainty sources and calculation of combined uncertainty are steps for calculation of uncertainty. All the individual uncertainty calculated are combined, later converted to expanded uncertainty.

APA, Harvard, Vancouver, ISO, and other styles

42

Tokunaga, Kyoko, Takayoshi Fuchida, Shigeru Okada, Toshio Soda, Nobumitsu Hata, and Michio Tsuchiya. "Quantification of the Color Reproduction Balance of Light Sources for HDTV." JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 79, no. 2 (1995): 108–15. http://dx.doi.org/10.2150/jieij1980.79.2_108.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

De Ketelaere, B., J. Stulens, J. Lammertyn, and J. De Baerdemaeker. "IDENTIFICATION AND QUANTIFICATION OF SOURCES OF BIOLOGICAL VARIANCE: A METHODOLOGICAL APPROACH." Acta Horticulturae, no. 674 (May 2005): 523–29. http://dx.doi.org/10.17660/actahortic.2005.674.68.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

KUMAGAI, Hiroyuki, and Masaru NAKANO. "Recent Advances in Quantification of the Sources of Volcano-seismic Signals." Zisin (Journal of the Seismological Society of Japan. 2nd ser.) 61, Supplement (2009): 379–90. http://dx.doi.org/10.4294/zisin.61.379.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Liu, Liangye, and Weilin Yi. "Research on identification and quantification methods for loss sources of compressors." Journal of Physics: Conference Series 2882, no. 1 (2024): 012044. http://dx.doi.org/10.1088/1742-6596/2882/1/012044.

Full text

Abstract:

Abstract A deep understanding of the internal loss mechanisms and specific values of turbomachinery is crucial for its design and analysis. In this paper, based on the theory of entropy production, the loss sources in the NASA Rotor67 transonic fan and Radiver centrifugal compressor were quantified by using numerical simulation methods and physical flow characteristic description methods. The proportion of losses in various regions was presented. The results show that in the transonic fan, boundary layer losses and wake losses account for more than 70%, while direct shock losses account for less than 2%. Additionally, as the mass flow increases, the losses gradually move downstream, with the proportion of wake losses increasing. Within the wake losses, the influence of tip leakage flow and corner separation flow exceeds 70%. In the centrifugal compressor, as the mass flow decreases, the proportion of impeller losses to the total stage losses increases significantly, from 21.7% at the choking condition to 63.5% near the design condition. Most of the losses within the impeller occur near the casing area, accounting for about 47% of the impeller losses. The areas near the blades and the main flow area are the other two major sources of impeller losses, with both contributing to 36% of the losses.

APA, Harvard, Vancouver, ISO, and other styles

46

Thompson, L. R., and J. E. Rowntree. "Invited Review: Methane sources, quantification, and mitigation in grazing beef systems." Applied Animal Science 36, no. 4 (2020): 556–73. http://dx.doi.org/10.15232/aas.2019-01951.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Tratt, David M., Kerry N. Buckland, Jeffrey L. Hall, et al. "Airborne visualization and quantification of discrete methane sources in the environment." Remote Sensing of Environment 154 (November 2014): 74–88. http://dx.doi.org/10.1016/j.rse.2014.08.011.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Scheiber, Laura, Carlos Ayora, and Enric Vázquez-Suñé. "Quantification of proportions of different water sources in a mining operation." Science of The Total Environment 619-620 (April 2018): 587–99. http://dx.doi.org/10.1016/j.scitotenv.2017.11.172.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Risal, Avay, and Prem B. Parajuli. "Quantification and simulation of nutrient sources at watershed scale in Mississippi." Science of The Total Environment 670 (June 2019): 633–43. http://dx.doi.org/10.1016/j.scitotenv.2019.03.233.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Mummullage, Sandya, Prasanna Egodawatta, Godwin A. Ayoko, and Ashantha Goonetilleke. "Sources of hydrocarbons in urban road dust: Identification, quantification and prediction." Environmental Pollution 216 (September 2016): 80–85. http://dx.doi.org/10.1016/j.envpol.2016.05.042.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!