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Artykuły w czasopismach na temat "Laboratory reflectance spectroscopy"

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Blažek, J., O. Jirsa, and M. Hrušková. "Prediction of wheat milling characteristics by near-infrared reflectance spectroscopy." Czech Journal of Food Sciences 23, No. 4 (2011): 145–51. http://dx.doi.org/10.17221/3384-cjfs.

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The aim of this study was to explore the use of NIR spectroscopy of laboratory milled flour to predict the milling characteristics of wheat. Quantitative traits of the milling process of wheat were predicted by analyses of NIR spectra of six sets consisting of 94 samples. Reference data were obtained by grinding the samples on the laboratory mill Chopin CD1-auto (France), spectral data were measured on spectrograph NIRSystem 6500. Commercial spectral analysis software WINISI II was used to collect spectra, develop calibration equations and evaluate calibration performance. The quality of predi
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Couillard, A., A. J. Turgeon, M. O. Westerhaus, and J. S. Shenk. "Determination of Soil Separates with near Infrared Reflectance Spectroscopy." Journal of Near Infrared Spectroscopy 4, no. 1 (1996): 201–12. http://dx.doi.org/10.1255/jnirs.91.

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The use of near infrared (NIR) reflectance spectroscopy to evaluate soil properties has started to receive more attention in recent years. The technology is evolving and research on NIR spectroscopic analysis using natural state samples is increasing. There is no method available today, besides NIR spectroscopy, that could simultaneously evaluate physical and chemical properties of a soil sample without processing the sample and affecting the visual quality of the site. More samples can be scanned in their natural undisturbed form resulting in a variety of particle sizes. Research on the effec
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Leone, Natalia, Valeria Ancona, Ciro Galeone, Carmine Massarelli, Vito Felice Uricchio, and Antonio Pasquale Leone. "Vis-NIR Reflectance Spectroscopy and PLSR to Predict PCB Content in Severely Contaminated Soils: A Perspective Approach." Applied Sciences 12, no. 16 (2022): 8283. http://dx.doi.org/10.3390/app12168283.

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Soil reclamation from polychlorinated biphenyls (PCBs) requires careful analysis in terms of their concentrations and spatial distribution. Conventional laboratory analysis, even if providing the careful evaluation of PCBs, is costly and time-consuming. Therefore, rapid and cost-effective techniques to replace traditional analytical approaches are required. The utility of visible-near infrared (vis-NIR) reflectance spectroscopy in conjunction with partial least square regression (PLSR) analysis was evaluated in this study. Spectral reflectance was measured in the laboratory on 28 soil samples
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Neumeister, Volker, Werner Jaross, Jobst Henker, and Georg Kaltenborn. "Simultaneous Determination of Fecal Fat, Nitrogen and Water by Fourier Transform near Infrared Reflectance Spectroscopy through a Polyethylene/Polyaminde Film." Journal of Near Infrared Spectroscopy 6, A (1998): A265—A272. http://dx.doi.org/10.1255/jnirs.206.

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The determination of fecal fat, nitrogen and water is important to get evidence for malassimilation and for estimating the efficacy of treatment with pancreatic enzymes. Standard methods for the determination of these parameters (van-de-Kamer method for fat determination, Kjeldahl method for nitrogen determination) are expensive, time-consuming and cumbersome for laboratory assistants. Near infrared (NIR) reflectance spectroscopy was evaluated as a potentially attractive alternative method, especially because the simultaneous measurement of fat, nitrogen and water content is possible. After ho
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Arganosa, G. C., T. D. Warkentin, V. J. Racz, S. Blade, C. Phillips, and H. Hsu. "Prediction of crude protein content in field peas using near infrared reflectance spectroscopy." Canadian Journal of Plant Science 86, no. 1 (2006): 157–59. http://dx.doi.org/10.4141/p04-195.

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A rapid, near-infrared spectroscopic method to predict the crude protein contents of 72 field pea lines grown in Saskatchewan, both whole seeds and ground samples, was established. Correlation coefficients between the laboratory and predicted values were 0.938 and 0.952 for whole seed and ground seed, respectively. Both methods developed are adequate to support our field pea breeding programme. Key words: Field pea, near-infrared reflectance spectroscopy, crude protein
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Simakina, Ya I., I. I. Kuzmin, Yu I. Fabelinsky, and T. Kh Chyong. "MANGANESE(II) DETERMINATION BY DIFFUSE REFLECTANCE SPECTROSCOPY." Fine Chemical Technologies 12, no. 5 (2017): 47–55. http://dx.doi.org/10.32362/2410-6593-2017-12-5-47-55.

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Results of testing a prototype light-emitting diod miniphotometer for rapid and sensitive elements determination both in laboratory and in field conditions are presented. The new photometer consists of two devices providing measurements of absorbance and diffuse reflectance, having a joint system of data management, registration and presentation of the results. The measurements of absorbance were registered in the visible spectrum. The explored reaction of Mn(II) with 1-(2-pyridylazo)-2-naphthol and the new reaction with 2-(2-quinolinazo)-5-diethylaminophenol were used to verify the device’s m
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Tegler, S. C., W. M. Grundy, M. J. Loeffler, et al. "Optical Constants of Ices Important to Planetary Science from Laboratory Reflectance Spectroscopy." Planetary Science Journal 5, no. 2 (2024): 31. http://dx.doi.org/10.3847/psj/ad1683.

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Abstract Laboratory-derived optical constants are essential for identifying ices and measuring their relative abundances on solar system objects. Almost all optical constants of ices important to planetary science come from experiments with transmission geometries. Here we describe our new experimental setup and the modification of an iterative algorithm in the literature to measure the optical constants of ices from experiments with reflectance geometries. We apply our techniques to CH4 ice and H2O ice samples and find good agreement between our values and those in the literature, except for
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Poldi, G., and S. Caglio. "Phthalocyanine Identification in Paintings by Reflectance Spectroscopy. A Laboratory andIn SituStudy." Оптика и спектроскопия 114, no. 6 (2013): 1018–25. http://dx.doi.org/10.7868/s0030403413060147.

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Zhang, Xia, Weichao Sun, Yi Cen, Lifu Zhang, and Nan Wang. "Predicting cadmium concentration in soils using laboratory and field reflectance spectroscopy." Science of The Total Environment 650 (February 2019): 321–34. http://dx.doi.org/10.1016/j.scitotenv.2018.08.442.

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Hallett, R. A., J. W. Hornbeck, and M. E. Martin. "Predicting Elements in White Pine and Red Oak Foliage with Visible-Near Infrared Reflectance Spectroscopy." Journal of Near Infrared Spectroscopy 5, no. 2 (1997): 77–82. http://dx.doi.org/10.1255/jnirs.101.

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Near infrared (NIR) reflectance spectroscopy was evaluated for its effectiveness at predicting Al, Ca, Fe, K, Mg and Mn concentrations in white pine ( Pinus strobus L.) and red oak ( Quercus rubra L.) foliage. A NIR spectrophotometer was used to scan 470 dried, ground foliage samples. These samples were used to develop calibration equations using a modified partial least squares (MPLS) regression technique. For the calibration equations, concentrations of Al, Ca, Fe, K, Mg and Mn as determined by acid digestion and laboratory analysis were regressed against second-difference absorbance values
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Rozprawy doktorskie na temat "Laboratory reflectance spectroscopy"

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Mushia, Nicacias. "Assessment of coal mine stockpiled soil quality and its impact on vegetation using laboratory-based techniques and reflectance spectroscopy." Thesis, 2018. http://hdl.handle.net/10386/2202.

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Thesis (Ph.D. (Agriculture)) -- University of Limpopo, 2018<br>Surface coal mining requires good and sound rehabilitation practices to re-establish productive land capability and land use after mine-closure. The vast majority of Mpumalanga’s coal deposits are located below high quality and productive arable land. Impacts on soil and land, associated with surface coal mining can reduce the possibility to re-establish the pre-mining land capability and productive potential. Stockpiled soils are excavated from the ground during mining activities, and piled on the surface of the soil for rehabilit
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Tomcová, Jana. "Laboratorní spektroskopie pro vybrané druhy vegetace z krkonošské tundry." Master's thesis, 2019. http://www.nusl.cz/ntk/nusl-405630.

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Laboratory spectroscopy for selected Krkonoše Mts. tundra vegetation species The diploma thesis is focused on testing the methodologies of measuring the reflectance of grasses from the tundra of Krkonoše Mountains (Nardus stricta, Molinia caerulea, Calamagrostis villosa). The spectoradiometer ASD FieldSpec 4 Wide-Res with added contact probe ASD Plant Probe is used for measurements. Since it is not common to measure such narrow leaves that do not cover the whole FOV, the thesis is looking for methodologies that are the most repeatable and influenced by a minimum of errors. Factors influencing
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Červená, Lucie. "Využití laboratorní/terénní spektroskopie a obrazových dat dálkového průzkumu Země pro studium vegetace." Doctoral thesis, 2018. http://www.nusl.cz/ntk/nusl-391375.

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Dominant vegetation species of two structurally and functionally different montane ecosystems were studied by means of laboratory and field spectroscopy and remote sensing image data: (1) a homogeneous human-influenced evergreen coniferous forest represented by a Norway spruce forest in the Krušné hory Mountains and (2) a heterogeneous natural ecosystem of a relict arctic-alpine tundra in the Krkonoše Mountains with predominance of grasses. The first part dealing with the Norway spruce forest is especially focused on the methods of laboratory spectroscopy. The assessment of Norway spruce stand
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Książki na temat "Laboratory reflectance spectroscopy"

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Ponder, Henley J., and U.S. Army Engineer Topographic Laboratories., eds. Hyperspectral signatures (400 to 2500 nm) of vegetation, minerals, soils, rocks, and cultural features: Laboratory and field measurements. U.S. Army Corps of Engineers, Engineer Topographic Laboratories, 1990.

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Rayment, George E., and David J. Lyons. Soil Chemical Methods - Australasia. CSIRO Publishing, 2010. http://dx.doi.org/10.1071/9780643101364.

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Soil Chemical Methods – Australasia describes over 200 laboratory and field chemical tests relevant to Australasia and beyond. The information and methodology provided across 20 chapters is comprehensive, systematic, uniquely coded, up-to-date and designed to promote chemical measurement quality. There is guidance on the choice and application of analytical methods from soil sampling through to the reporting of results. In many cases, optional analytical ‘finishes’ are provided, such as flow-injection analysis, electro-chemistry, multiple flame technologies, and alternatives to chemical testin
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Części książek na temat "Laboratory reflectance spectroscopy"

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Serventi, G., C. Carli, and M. Sgavetti. "Laboratory Analysis (Reflectance Spectroscopy) of Terrestrial Analogues." In Encyclopedia of Lunar Science. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-05546-6_18-1.

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Serventi, G., C. Carli, and M. Sgavetti. "Laboratory Analysis (Reflectance Spectroscopy) of Terrestrial Analogues." In Encyclopedia of Lunar Science. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-319-14541-9_18.

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Zarco-Tejada, Pablo J., John R. Miller, and Gina H. Mohammed. "Remote Sensing of Solar-Induced Chlorophyll Fluorescence from Vegetation Hyperspectral Reflectance and Radiative Transfer Simulation." In From Laboratory Spectroscopy to Remotely Sensed Spectra of Terrestrial Ecosystems. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-017-1620-8_11.

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Carter, Gregory A., and Lee Estep. "General Spectral Characteristics of Leaf Reflectance Responses to Plant Stress and Their Manifestation at the Landscape Scale." In From Laboratory Spectroscopy to Remotely Sensed Spectra of Terrestrial Ecosystems. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-017-1620-8_12.

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Sudduth, Kenneth A., and Kristen S. Veum. "Advances in using proximal spectroscopic sensors to assess soil health." In Advances in sensor technology for sustainable crop production. Burleigh Dodds Science Publishing, 2023. http://dx.doi.org/10.19103/as.2022.0107.10.

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Diffuse reflectance spectroscopy is a method that has been successfully used to estimate soil organic carbon, organic matter, and numerous other properties related to soil health. In this chapter, we introduce the concept of soil health and the need for sensor-based soil health measurements. We then review methods of soil spectroscopy, including instrumentation and modeling methods for both laboratory and in-situ sensing. The ability of spectroscopy to estimate key soil health properties is covered along with the potential advantages of merging other sensor data with spectral data. The chapter
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Kusuma, C. G., S. A. Bhoomika, and S. Dharumarajan. "Prediction of soil nutrients using visible-near-infrared reflectance laboratory spectroscopy." In Remote Sensing of Soils. Elsevier, 2024. http://dx.doi.org/10.1016/b978-0-443-18773-5.00001-6.

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Tümsavaş Zeynal, Tekin Yücel, Ulusoy Yahya, and Mouazen Abdul M. "Prediction of Soil Sand and Clay Contents via Visible and Near-Infrared (Vis-NIR) Spectroscopy." In Ambient Intelligence and Smart Environments. IOS Press, 2017. https://doi.org/10.3233/978-1-61499-796-2-29.

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Visible and near infrared (Vis-NIR) spectroscopy is a non-destructive analytical method that can be used to complement, enhance or potentially replace conventional methods of soil analysis. The aim of this research was to predict the particle size distribution (PSD) of soils using a Vis-NIR) spectrophotometry in one irrigate field having a vertisol clay texture in the Karacabey district of Bursa Province, Turkey. A total of 86 soil samples collected from the study area were subjected to optical scanning in the laboratory with a portable, fiber-type Vis&amp;ndash;NIR spectrophotometer (AgroSpec
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Streszczenia konferencji na temat "Laboratory reflectance spectroscopy"

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Al-Borno, Amal, Moavin Islam, A. Al Hashem, and Hasan Sabri. "Effect of Curing Time on the Performance of Novolac Internal Tank Coatings – a Realistic Assessment Using Laboratory Testing." In CONFERENCE 2024. AMPP, 2024. https://doi.org/10.5006/c2024-20588.

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Abstract Novolac coating systems are widely used for internal applications in tanks and pressure vessels due to their excellent corrosion resistance under aggressive conditions, their availability, and ease of application. Typically, these coatings require a curing time before putting the coating into service is typically around 7-8 days at (at 20-25°C). During the vessel shutdown, the production schedule sometimes demands compromising the curing process of the lining. This puts a time constraint on the end-user in terms of coating project duration. In response to this challenge, a major oil p
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García-Meléndez, Eduardo, Esther Carrillo, Raimon Pallàs, et al. "Laboratory and field reflectance spectroscopy as a tool for sedimentary correlations in Paleoseismology." In Earth Resources and Environmental Remote Sensing/GIS Applications XII, edited by Karsten Schulz, Konstantinos G. Nikolakopoulos, and Ulrich Michel. SPIE, 2021. http://dx.doi.org/10.1117/12.2600280.

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Maturilli, A., and J. Helbert. "The Planetary Spectroscopy Laboratory (PSL) at DLR in Berlin: transmission, reflectance and emissivity spectroscopy from UV to FIR." In 2018 Quantitative InfraRed Thermography. QIRT Council, 2018. http://dx.doi.org/10.21611/qirt.2018.a.

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Cruz, Juncal A., Ismael Coronado, Montserrat Ferrer-Julià, et al. "Application of laboratory reflectance spectroscopy in the characterization of uranium-bearing minerals associated with fossils remains." In Earth Resources and Environmental Remote Sensing/GIS Applications XII, edited by Karsten Schulz, Konstantinos G. Nikolakopoulos, and Ulrich Michel. SPIE, 2021. http://dx.doi.org/10.1117/12.2600332.

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Sinichkin, Yurii P., Leonid E. Dolotov, Irina A. Kiseleva, Dmitry A. Zimnyakov, and Valery V. Tuchin. "Special practical laboratory for training on optical biophysics: in vivo reflectance and fluorescence spectroscopy of the human skin." In Saratov Fall Meeting 2001, edited by Valery V. Tuchin. SPIE, 2002. http://dx.doi.org/10.1117/12.475636.

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Petja, Brilliant M., Yaw A. Twumasi, and George T. Tengbeh. "Comparative analysis of reflectance spectroscopy and laboratory based assessment of asbestos pollution in the rehabilitated mining environment, South Africa." In 2007 IEEE International Geoscience and Remote Sensing Symposium. IEEE, 2007. http://dx.doi.org/10.1109/igarss.2007.4423032.

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Zhao, Huijie, Bolun Cui, Guorui Jia, and Fuping Gan. "The influence analysis of reflectance anisotropy of canopy on the prediction accuracy of Cu stress based on laboratory multi-directional measurement." In International Conference on Optical Instruments and Technology 2019: Optoelectronic Imaging/Spectroscopy and Signal Processing Technology, edited by Wolfgang Osten, Guohai Situ, and Xun Cao. SPIE, 2020. http://dx.doi.org/10.1117/12.2547342.

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Erazo, Maria P., William Singer, Nick Lord, Maria L. Rosso, and Bo Zhang. "Development of a Near-infrared Spectroscopy Calibration Model to Predict Methionine Content in Whole Soybeans." In 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/zusl9413.

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Soybean is an important source of high-quality protein for humans and livestock. However, the content of methionine, a sulfur-containing essential amino acid, is deficient and inadequate for consumer needs. Amino acid evaluation can be performed by conventional wet chemical techniques like high-performance liquid chromatography (HPLC). To ease out the need for complex laboratory infrastructure and highly skilled experts often required by these procedures, HPLC datasets can be paired with data obtained from Near-infrared (NIR) reflectance spectroscopy. Through this approach, spectral data can b
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Potin, Sandra, Adyn Miles, Jérôme Loïcq, Pierre Piron, and Fabien Schmutz. "Laboratory spectroscopic ellipsometer for bidirectional reflectance of planetary surfaces." In Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave, edited by Laura E. Coyle, Marshall D. Perrin, and Shuji Matsuura. SPIE, 2024. http://dx.doi.org/10.1117/12.3018890.

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Raporty organizacyjne na temat "Laboratory reflectance spectroscopy"

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Agassi, Menahem, Michael J. Singer, Eyal Ben-Dor, et al. Developing Remote Sensing Based-Techniques for the Evaluation of Soil Infiltration Rate and Surface Roughness. United States Department of Agriculture, 2001. http://dx.doi.org/10.32747/2001.7586479.bard.

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The objective of this one-year project was to show whether a significant correlation can be established between the decreasing infiltration rate of the soil, during simulated rainstorm, and a following increase in the reflectance of the crusting soil. The project was supposed to be conducted under laboratory conditions, using at least three types of soils from each country. The general goal of this work was to develop a method for measuring the soil infiltration rate in-situ, solely from the reflectance readings, using a spectrometer. Loss of rain and irrigation water from cultivated fields is
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