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Relevant bibliographies by topics / Colorimetric Estimation

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Academic literature on the topic 'Colorimetric Estimation'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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Journal articles on the topic "Colorimetric Estimation"

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AJIT, SRIVASTAVA, and PATIL SHRIDHAR. "Colorimetric Estimation of 4-Cholesten-3-one using Zimmermann Reaction." Journal of Indian Chemical Society Vol. 73, Oct 1996 (1996): 553–54. https://doi.org/10.5281/zenodo.5910723.

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School of Life Sciences, Devi Ahilya Vishwavidyalaya, Vigyan Bhawan, Khandwa Road, lndore-452 001 <em>Manuscript received 18 March 1994, revised 28 December 1994, accepted 16 February 1995</em> Colorimetric Estimation of 4-Cholesten-3-one using Zimmermann Reaction.

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Doctorvaladan, Sahar, Andrea Jelks, Eric Hsieh, Robert Thurer, Mark Zakowski, and David Lagrew. "Accuracy of Blood Loss Measurement during Cesarean Delivery." American Journal of Perinatology Reports 07, no. 02 (2017): e93-e100. http://dx.doi.org/10.1055/s-0037-1601382.

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Objective This study aims to compare the accuracy of visual, quantitative gravimetric, and colorimetric methods used to determine blood loss during cesarean delivery procedures employing a hemoglobin extraction assay as the reference standard. Study Design In 50 patients having cesarean deliveries blood loss determined by assays of hemoglobin content on surgical sponges and in suction canisters was compared with obstetricians' visual estimates, a quantitative gravimetric method, and the blood loss determined by a novel colorimetric system. Agreement between the reference assay and other measur

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KIM, Changhyun, Junyeop Lee, Junkyu Park, et al. "Video-Based Time-Series Feature Extraction Image Encoding Methods for Enhanced Colorimetric Gas Concentration Estimation." ECS Meeting Abstracts MA2022-02, no. 64 (2022): 2408. http://dx.doi.org/10.1149/ma2022-02642408mtgabs.

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Early detection and intervention of gas leaks can reduce industrial risks. Numerous early detection methods have been developed and applied in the industrial field, but they require professional analysis technology, long analysis time, and relatively expensive equipment. Strategies to reduce industrial gas hazards constantly require the development of new, efficient and reliable devices. In the past few decades, various types of gas sensors have been developed based on semiconductors, optical fibers, acoustic waves and other technologies. A significant amount of work has been done in recent ye

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KUGE, Yasuyuki. "Estimation of Colorimetric Specifications for Object Colors." Journal of the Japan Society of Colour Material 58, no. 1 (1985): 3–8. http://dx.doi.org/10.4011/shikizai1937.58.3.

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Amin, Alaa S., Mounir Zaky, and Ashraf M. El-Beshbeshy. "Colorimetric Estimation of Melatonin in Pharmaceutical Formulations." Microchimica Acta 135, no. 1-2 (2000): 81–85. http://dx.doi.org/10.1007/s006040070021.

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Costa, Anderson G., Eudócio R. O. da Silva, Murilo M. de Barros, and Jonatthan A. Fagundes. "Estimation of percentage of impurities in coffee using a computer vision system." Revista Brasileira de Engenharia Agrícola e Ambiental 26, no. 2 (2022): 142–48. http://dx.doi.org/10.1590/1807-1929/agriambi.v26n2p142-148.

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ABSTRACT The quality and price of coffee drinks can be affected by contamination with impurities during roasting and grinding. Methods that enable quality control of marketed products are important to meet the standards required by consumers and the industry. The purpose of this study was to estimate the percentage of impurities contained in coffee using textural and colorimetric descriptors obtained from digital images. Arabica coffee beans (Coffea arabica L.) at 100% purity were subjected to roasting and grinding processes, and the initially pure ground coffee was gradually contaminated with

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Ngamloetphochit, Seni, and Vijarn Vachirawongsakorn. "Estimation of Post-mortem Interval Based on Livor Mortis using a Colorimeter in Thai Populations." Biomedical Sciences and Clinical Medicine 63, no. 2 (2024): 79–86. http://dx.doi.org/10.12982/bscm.2024.11.

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OBJECTIVE Livor mortis is a helpful and widely used method of estimating postmortem interval (PMI) in Thailand. This study aimed to investigate the value of a colorimeter as a tool for estimating the PMI. METHODS The color of livor mortis and control skin in 80 cadavers whose PMI was within 12 hours was measured by a colorimeter. The L* (brightness), a*b* (chroma and hue), and ∆E* values were compared to the control skin values. Statistical analysis was performed to determine the relationship between PMI and skin color before and after application of a specific pressure. RESULTS The results sh

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Narayanan, Pushpa, and K. G. Akamanchi. "Colorimetric estimation of total iridoid content ofPicrorhiza kurrooa." Journal of Asian Natural Products Research 5, no. 2 (2003): 105–11. http://dx.doi.org/10.1080/1028602021000054955.

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Preuss, H. G., M. H. Razavi, D. Slemmer, and M. Zein. "Colorimetry of p-aminohippurate in the presence of sulfamethoxazole." Clinical Chemistry 34, no. 2 (1988): 422–23. http://dx.doi.org/10.1093/clinchem/34.2.422.

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Abstract Colorimetric quantification of p-aminohippurate (PAH), which is helpful in assessment of renal function, is subject to interference from sulfa compounds such as sulfamethoxazole. We were unable to measure serum PAH in two patients receiving a trimethoprim-sulfamethoxazole combination because of interference by the latter with the colorimetric estimation. We found that isoamyl acetate removes sulfamethoxazole from the samples without influencing PAH. The extraction is simple, inexpensive, and reproducible.

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Meng, Fan Wei, Qing Tian, and You Liang Yang. "Colorimetric Temperature Measurement Algorithm Based on Multi-Sensor Data Fusion." Applied Mechanics and Materials 530-531 (February 2014): 146–50. http://dx.doi.org/10.4028/www.scientific.net/amm.530-531.146.

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Wavelength and other factors have a deep influence on temperature measurement system based on CCD image sensor. Deviations between measurement values sometimes are large. In order to reduce error, the temperature outputs in different wavelength combinations do have multi-sensor correlation properties in point of colorimetric temperature measurement system view. The colorimetric temperature measurement algorithm based on real-time adaptive weighted is put forward by such performance index that minimum of standard deviation. According to measured value of each sensor, we will find out the corres

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Dissertations / Theses on the topic "Colorimetric Estimation"

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Ghosh, Debabrata. "Pharmacognosy of different clones of Camellia sinensis (L.) O. Kuntze, cultivated in Darjeeling hills with special emphasis on the establishment of a new and rapid colorimetric method for quantitative estimation of caffeine." Thesis, University of North Bengal, 2000. http://hdl.handle.net/123456789/1068.

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Marini, Lucas José. "Estimativa de propriedades físicas e mecânicas de Pinus sp. por colorimetria." Universidade de São Paulo, 2019. http://www.teses.usp.br/teses/disponiveis/18/18158/tde-14032019-102959/.

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A possibilidade de utilização da técnica de colorimetria para obter informações relevantes das peças de Pinus é uma excelente alternativa, uma vez que o colorímetro é um equipamento de fácil manuseio e rápida aquisição de dados, e o uso de madeira de florestas plantadas é crescente no Brasil. O objetivo desta pesquisa foi gerar modelos de regressão para estimativa da densidade aparente e das propriedades mecânicas (resistência e módulo de elasticidade) em função de parâmetros colorimétricos. Nesta pesquisa, 403 amostras de Pinus sp. foram caracterizadas de acordo com o sistema CIE L*a*b*, util

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Liévin, Marc. "Analyse entropico-logarithmique de séquences vidéo couleur : application a la segmentation et au suivi de visages parlants." Grenoble INPG, 2000. http://www.theses.fr/2000INPG0076.

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Ces dernieres annees ont vu un renforcement dans l'interet porte a la representation de visages parlants de syntheses. Les applications d'un tel systeme sont nombreuses et pas encore totalement definies : visiophonie, compression mpeg, clone-assistant de synthese, aide aux personnes handicapees cependant, alors que les methodes de synthese de visage sont de plus en plus fideles, le traitement d'image n'est pas actuellement en mesure de proposer des methodes robustes et de bonne qualite en analyse de visage. Ce travail de recherche porte donc sur l'analyse et l'extraction de parametres geometri

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Chang, Gao-Wei, and 張國維. "Spectral Responsivity Estimation and Colorimetric Characterization for Machine Vision Systems." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/59827199704107660042.

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博士<br>國立清華大學<br>電機工程學系<br>88<br>In machine vision systems, color imaging plays a vital role in conveying and recording visual information from real-word objects. To accurately represent colors acquired from camera imaging, we propose techniques of spectral responsivity estimation and colorimetric modeling for the vision systems, in this thesis. For determination of camera’s spectral responses, we introduce a multichannel filtering (MCF) system. The design objective of the optical system is to effectively select a limited amount of spectral (or broadband) filters to characterize the

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Books on the topic "Colorimetric Estimation"

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Gunter, S. Kay, and James P. Birk. Estimating the Copper Content of Malachite Using Microscale Colorimetric Techniques. Chemical Education Resources, 1991.

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Book chapters on the topic "Colorimetric Estimation"

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Kumar Samanta, Ashis. "Colorimetric Evaluations and Characterization of Natural and Synthetic Dyes/Pigments and Dyed Textiles and Related Products." In Colorimetry [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.104774.

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This book chapter covers principles and few case studies on colorimetric Estimation of (i) determining purity/active ingredient % of selective dyes/pigments (ii) Identification of any colorants to distinguish from other similar compound, (iii) Measurement of surface colour strength of a dyed textile, (iv) Measurement of colour differences by estimating DE, DL*, Da*, Db*, DC and DH values, (v)Computer-aided colour match prediction for any standard shades, (vi) Estimation of compatibility of two dyes/colourants to use for compound shades, (vii) Determination of rate of dyeing, dyeing isotherm an

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Prakash Jain, Buddhi, Shweta Pandey, and Shyamal K. Goswami. "Estimation of Iron by Thiocyanate Colorimetric Method." In Protocols in Biochemistry and Clinical Biochemistry. Elsevier, 2025. http://dx.doi.org/10.1016/b978-0-443-13945-1.00004-3.

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Prakash Jain, Buddhi, Shweta Pandey, and Shyamal K. Goswami. "Estimation of Serum Amylase (Kinetic Colorimetric Method)." In Protocols in Biochemistry and Clinical Biochemistry. Elsevier, 2025. http://dx.doi.org/10.1016/b978-0-443-13945-1.00061-4.

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Prakash Jain, Buddhi, Shweta Pandey, and Shyamal K. Goswami. "Colorimetric Estimation of Alkaline Phosphatase (ALP) From Serum." In Protocols in Biochemistry and Clinical Biochemistry. Elsevier, 2025. http://dx.doi.org/10.1016/b978-0-443-13945-1.00089-4.

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Prakash Jain, Buddhi, Shweta Pandey, and Shyamal K. Goswami. "Estimation of the Calcium in Serum by O-Cresolpthalein Complexon Method (Colorimetric)." In Protocols in Biochemistry and Clinical Biochemistry. Elsevier, 2025. http://dx.doi.org/10.1016/b978-0-443-13945-1.00058-4.

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Kumari Shrestha, Yagya, and Shree Krishna Shrestha. "Fundamentals of Colorimetry." In Advances in Colorimetry [Working Title]. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.112344.

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There are several kinds of analytical techniques following the principle of photometry in which colorimetry comes under absorption photometry. The colorimetry is commonly used analytical technique involved in quantitative estimation of color i.e. it is utilized to find out concentration of the colored substance in the sample solution e.g. water, biological samples at visible spectrum of light (380–780 nm). The colorimeter is an instrument in which this technique is used. It is also called absorptiometer. A substance must be colorful or should have property of forming chromogens through the add

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Zaher, Ali Youssef, and Afraa Ghanem. "Clouds Motion Estimation from Ground-Based Sky Camera and Satellite Images." In Colorimetry and Image Processing. InTech, 2018. http://dx.doi.org/10.5772/intechopen.71263.

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Das, Debangana, Shreya Nag, and Runu Banerjee Roy. "Machine Vision System." In Advances in Computer and Electrical Engineering. IGI Global, 2024. http://dx.doi.org/10.4018/979-8-3693-5573-2.ch018.

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The electronic sensing platforms measure the aroma, the taste, and color profiles, respectively. Color of tea samples is measured by using colorimeter and the process is called colorimetry. Flavanols, which are the most important compounds present in tea are responsible for the dark color of tea. The higher the flavavols like catechin, epigallocatechin-gallate, theaflavin, thearubigin, etc, the better is the quality of tea. It is feasible to monitor the image data which has been captured by a camera using digital detection and analysis with an electronic eye instrument. In essence, the use of

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Conference papers on the topic "Colorimetric Estimation"

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Sherar, Brent W. A., and Peter F. Ellis. "Optimizing Sour Qualification Testing – Verification of H2S Solubility from H2S/N2 Gas Mixtures up to 20,000 Psig at 70 °F." In CORROSION 2021. AMPP, 2021. https://doi.org/10.5006/c2021-16317.

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Abstract Traditionally, the H2S partial pressure (PH2S) of the gas phase has been used as the primary sour severity metric for material qualification and selection under ANSI/NACE MR0175/ISO 15156 guidelines. While the PH2S is appropriate for characterizing low total pressure systems, the strict, or ideal, Henry's Law approach leads to over estimation of the dissolved H2S concentration (CH2S) for high-pressure, high-temperature (HPHT) wells by up to ~20 times at 70 °F. Alternatively, the Ensemble Henry's Law equation corrects for the non-ideal phase behavior of H2S at HPHT conditions and avoid

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Zdarova, D. A., A. A. Zolotukhina, and A. S. Belyaeva. "A Comparative Study of Colorimetry and Reflectance Spectroscopy for Estimating Pigment Content in Plant Leaves." In 2025 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO). IEEE, 2025. https://doi.org/10.1109/synchroinfo65403.2025.11079391.

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Ryu, Je-Ho, Jae-Woo Kim, Kang-Kyu Lee, and Jong-Ok Kim. "Colorimetric background estimation for color blending reduction of OST-HMD." In 2016 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA). IEEE, 2016. http://dx.doi.org/10.1109/apsipa.2016.7820764.

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Lee, Raymond L. "Colorimetric Calibration of a Video Digitizing System: Algorithm and Applications." In Color Appearance. Optica Publishing Group, 1987. http://dx.doi.org/10.1364/ca.1987.tuc4.

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Obtaining accurate colorimetric information about color samples may seem to be a hopeless task unless we have access to elaborate spectroradiometers and sophisticated illumination standards. However, it is possible to obtain very good estimates of chromaticity values even if we use broad-band devices such as color video cameras, provided that we have a reliable way of estimating their color and luminance biases.

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Scums, D. "ON THE QUESTION OF THE UNCERTAINTY OF CIE 1931 COLOR-MATCHING FUNCTIONS." In CIE 2023 Conference. International Commission on Illumination, CIE, 2023. http://dx.doi.org/10.25039/x50.2023.po137.

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For almost a hundred years, the CIE 1931 colorimetric system remaining the backbone of color measurements in science and industry. However, the redefinition of the SI system raises difficult questions about the assessment of the uncertainty of color measurements and their belonging to the sphere of the SI system. In the article discusses various aspects concerning estimating of the uncertainty of CIE color-matching functions. As well as possible ways of its evaluation are proposed

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Bhatt, Sunita, Sandeep Kumar Singh, Sudip Kumar Datta, and Satish Kumar Dubey. "Smartphone-based colorimetry analysis for estimation of albumin concentration." In Biophotonics in Point-of-Care III, edited by Michael T. Canva, Ambra Giannetti, Julien Moreau, and Hatice Altug. SPIE, 2024. http://dx.doi.org/10.1117/12.3020952.

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Cao, Hui, Bo Zhou, Shuzhi Sam Ge, and Hongliang Ren. "Towards low-cost contactless high-temperature estimation based on colorimetrie fusion." In 2015 IEEE 7th International Conference on Cybernetics and Intelligent Systems (CIS) and IEEE Conference on Robotics, Automation and Mechatronics (RAM). IEEE, 2015. http://dx.doi.org/10.1109/iccis.2015.7274634.

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Corell, D. D., C. Dam-Hansen, and A. Thorseth. "COMPARISON OF LUMINOUS FLUX MAINTENANCE METHODS, CONTINOUS VS. ON/OFF CYCLES." In CIE 2021 Conference. International Commission on Illumination, CIE, 2021. http://dx.doi.org/10.25039/x48.2021.po30.

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This paper will present preliminary results from a research project comparing two methods for estimating the lifetime of LED products, LM-84 (6000 h test) and the new EU endurance test (3600h test) including on/off cycling, that will be required by EU from 2021. Beside the luminous flux development for the sources tested, their colorimetric results will also be examined as a function of time. Preliminary results for two series of LED products will be presented. For one series, the 3600h test have been completed, for the remaining series only results from the 6000h test is available. Results of

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Makiyama Mello, Marcio M., Victor Antonio Cacciacarro Lincoln, Robson Barcellos, Giuseppe Antonio Cirino, Homero Schiabel, and Liliane Ventura. "A new method for estimating photometric and colorimetric properties using RGB sensor and ANN." In Physics, Simulation, and Photonic Engineering of Photovoltaic Devices VIII, edited by Alexandre Freundlich, Masakazu Sugiyama, and Laurent Lombez. SPIE, 2019. http://dx.doi.org/10.1117/12.2510397.

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E. Bolzan, Thais, Bruno F. Almeida, Mateus O. K. Pereira, Renan R. Duarte, Vitor C. Bender, and Rafael A. Pinto. "Datasheet-based methodology for CCT and luminous flux estimation in mixed-LED lighting sources." In Congresso Brasileiro de Automática - 2020. sbabra, 2020. http://dx.doi.org/10.48011/asba.v2i1.1665.

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This work proposes a datasheet-based methodology to estimate the correlated color temperature (CCT) and the luminous flux of one or a combination of multiple white Light-Emitting Diodes (LEDs). This methodology is based on the interaction between the different domains (colorimetrical, optical, thermal and electrical) that control the LED's behavior. An experimental setup with LEDs of 4000K and 6500K CCT was built and tested under multiple operating conditions, in order to verify the accuracy of the proposed method. Results presented good correlation between estimated and measured data, with a

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