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Journal articles on the topic 'Method of absorption analysis'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Lovibond, J. W. "THE ABSORPTION METHOD OF COLOUR ANALYSIS." Journal of the Society of Dyers and Colourists 11, no. 3 (2008): 34–47. http://dx.doi.org/10.1111/j.1478-4408.1895.tb00078.x.

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2

Suzdalev, I. P., V. K. Imshennik, and S. V. Novichikhin. "Mössbauer absorption method of gas analysis." Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 76, no. 1-4 (1993): 421–27. http://dx.doi.org/10.1016/0168-583x(93)95256-5.

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3

Martı́nez, P. J., and J. M. Pinazo. "A method for design analysis of absorption machines." International Journal of Refrigeration 25, no. 5 (2002): 634–39. http://dx.doi.org/10.1016/s0140-7007(01)00052-4.

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4

Okuizumi, Ryo, Shinichi Hirota, Youhei Takagi, Masao Sudoh, and Yasunori Okano. "Process Analysis of Laser Welding Method with Polybutyleneterephthalate (PBT)." Advanced Materials Research 222 (April 2011): 150–53. http://dx.doi.org/10.4028/www.scientific.net/amr.222.150.

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The present study introduces the use of absorption energy as a parameter in thermal diffusion for explaining and predicting experimental results in laser welding. The developed parameter was utilized for the welding experiments of polybutyleneterephthalate (PBT). It was found that maximum welding strength values lie almost in the same range of absorption energy values for all cap thickness and scan velocity values considered in this work. One may then conclude that the absorption energy in thermal diffusion is an essential parameter for predicting experimental results in laser welding.

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Meiliyadi, Lalu Ahmad Didik, Muh Zainur Rahman, and Zahida Aliatu Zain. "Functional Group Analysis of Silica Gel Based on River Sand Magnetic Mineral as Heavy Metal Absorbance." KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA 9, no. 01 (2024): 34–41. http://dx.doi.org/10.20414/konstan.v9i01.484.

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Functional group analysis of silica gel synthesized from river sand magnetic minerals using the sol-gel method was conducted. River sand magnetic mineral samples were taken from Sompang River, Lombok. The synthesis method used is a sol-gel method with variation of HCl acid 10 M and NH4OH base 10 M. Morphological characterization using a Scanning Electron Microscope (SEM) and mineral content analysis using Energy Dispersive X-ray (EDX). The morphology of the resulting silica gel is granular, showing crystalline properties with a silica concentration of 77.99 ± 0.17 atomic percent. Silica functi

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Kniss, Andrew R., Joseph D. Vassios, Scott J. Nissen, and Christian Ritz. "Nonlinear Regression Analysis of Herbicide Absorption Studies." Weed Science 59, no. 4 (2011): 601–10. http://dx.doi.org/10.1614/ws-d-11-00034.1.

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Although foliar herbicide absorption has been studied intensively, there is currently no standardized method for data analysis when evaluating herbicide absorption over time. Most peer-reviewed journals require the treatment structure of data be incorporated in the analysis; however, many herbicide absorption studies published in the past 5 yr do not account for the time structure of the experiment. Herbicide absorption studies have been presented in a variety of ways, making it difficult to compare results among studies. The objective of this article is to propose possible nonlinear models to

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Green, Michael H., Joanne Balmer Green, and Jennifer Lynn Ford. "Vitamin A Absorption Efficiency Determined by Compartmental Analysis of Postprandial Plasma Retinyl Ester Kinetics in Theoretical Humans." Journal of Nutrition 150, no. 8 (2020): 2223–29. http://dx.doi.org/10.1093/jn/nxaa176.

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ABSTRACT Background Better methods are needed for determining vitamin A absorption efficiency in humans to support development of dietary recommendations and to improve the accuracy of predictions of vitamin A status. Objectives We developed and evaluated a method for estimating vitamin A absorption efficiency based on compartmental modeling of theoretical data on postprandial plasma retinyl ester (RE) kinetics. Methods We generated data on plasma RE and retinol kinetics (30 min to 8 h or 56 d, respectively) after oral administration of labeled vitamin A for 12 theoretical adults with a range

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8

Horita, Zenji, Ryuzo Nishimachi, Takeshi Sano, and Minoru Nemoto. "point-Analysis Using the Extrapolation Method in the Analytical Electron microscope." Proceedings, annual meeting, Electron Microscopy Society of America 48, no. 2 (1990): 430–31. http://dx.doi.org/10.1017/s0424820100135757.

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Absorption correction is often required in quantitative x-ray microanalysis of thin specimens using the analytical electron microscope. For such correction, it is convenient to use the extrapolation method[l] because the thickness, density and mass absorption coefficient are not necessary in the method. The characteristic x-ray intensities measured for the analysis are only requirement for the absorption correction. However, to achieve extrapolation, it is imperative to obtain data points more than two at different thicknesses in the identical composition. Thus, the method encounters difficult

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9

Knyazkov, A. V. "Matrix analysis of holographic method for investigating induced absorption." Optics and Spectroscopy 109, no. 5 (2010): 814–17. http://dx.doi.org/10.1134/s0030400x1011024x.

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10

Fan, Jiachuan, Chenxiao Xing, Tianyu Zong, Rao Fu, and Jingyi Hao. "Forest management plan based on TOPSIS analysis method." Highlights in Science, Engineering and Technology 67 (September 21, 2023): 29–35. http://dx.doi.org/10.54097/hset.v67i.11521.

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Climate change poses a huge threat to life, especially climate change caused by greenhouse gas emissions. Positive actions should be taken to reduce greenhouse gas emissions. But simply reducing emissions is not enough. It is necessary to increase carbon dioxide reserves through biosphere or mechanical means. Forests in the biosphere can store carbon dioxide. Moderate deforestation can increase the amount of fixed carbon dioxide and have little impact on society. For this issue, this article selects Saihanba Forest Farm as the research object. By establishing a mathematical model, the impact o

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11

Anis, Sara, Mervat Hosny, Hisham Abdellatef, and Mohamed El-Balkiny. "Spectrophotometric, atomic absorption and conductometric analysis of tramadol hydrochloride." Chemical Industry and Chemical Engineering Quarterly 17, no. 3 (2011): 269–82. http://dx.doi.org/10.2298/ciceq101206012a.

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Six simple and sensitive spectroscopic and conductometric procedures (A-F) were developed for the determination of tramadol hydrochloride. Method A,B and C are based on the reaction of cobalt (II) thiocyanate with tramadol to form stable ternary complex, which could be measured by spectrophotometric (method A), atomic absorption (method B) or conductometric (method C) procedures. Method (D and E) depended on the reaction of molybdenum thiocyanate with tramadol to form stable ternary complex, measured by spectrophotometric means (method D), or by atomic absorption procedures (method E), while m

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12

Green, Michael, Jennifer Ford, and Joanne Green. "Validation of a Method for Estimating Vitamin A Absorption Efficiency Based on Compartmental Analysis of Post-Prandial Plasma Retinyl Ester Kinetics." Current Developments in Nutrition 4, Supplement_2 (2020): 108. http://dx.doi.org/10.1093/cdn/nzaa041_012.

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Abstract Objectives Because good methods are not available to estimate vitamin A (VA) absorption, we evaluated an approach based on modeling retinyl ester response to an oral VA dose. Methods We generated data for 12 theoretical subjects, assigning values for VA absorption, stores, and kinetic parameters; we used WinSAAM (Simulation, Analysis and Modeling software) to simulate data (without and with 5% average error) for plasma chylomicron retinyl esters (RE) and retinol versus time (30 min to 8 h or 56 d, respectively) after ingestion of labeled VA; next we fit data to a previously-published

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13

Durgadsimi, S. U. "SYNTHESIS AND STRUCTURAL ANALYSIS OF NICKEL FERRITE SYNTHESIZED BY CO-PRECIPITATION METHOD." Eurasian Physical Technical Journal 18, no. 4 (38) (2021): 14–19. http://dx.doi.org/10.31489/2021no4/14-19.

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The Nickel ferrite has been synthesized by co-precipitation method. X-ray diffraction pattern confirms the formation of cubic spinel structure with lattice constant 8.347Å. Structural properties like X-ray density, average crystalline size, bond length, dislocation density and microstrain have been studied. The scanning electron microscope images show grain of bead structures. The Fourier transform infrared spectroscopy spectrum of nickel ferrite under investigation reveals the formation of a cubic spinel structure showing two significant absorption bands, corresponding to high frequency band

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14

Tang, Yao Chi, and Hao Dong Cheng. "Analysis and verification of optimization of micro-perforated panels' sound absorption using the Taguchi method." Journal of the Acoustical Society of America 157, no. 4 (2025): 3099–111. https://doi.org/10.1121/10.0036504.

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This study investigated the sound absorption coefficient of micro-perforated panels with multiple design factors, using the Taguchi method for analysis and optimization. The panels, made using stereolithography technology for three-dimensional printing, had four key factors: perforation rate, hole diameter, panel thickness, and wave surface. Their absorption coefficients were measured using an impedance tube and analyzed in two directions: namely, the absorption coefficient across various frequency bands and the frequency corresponding to the maximum absorption coefficient. By utilizing the Ta

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15

Choquet, M., G. Rousset, and L. Bertrand. "Fourier-transform photoacoustic spectroscopy: a more complete method for quantitative analysis." Canadian Journal of Physics 64, no. 9 (1986): 1081–85. http://dx.doi.org/10.1139/p86-186.

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Strong absorption bands of photoacoustic Fourier-transform spectra are often truncated relative to weaker bands owing to signal saturation. To correct this problem, we propose processing both the phase and the amplitude information in the photoacoustic signal. Under certain conditions, easily fulfilled in typical experiments, we are able to calculate the absolute absorption spectrum from the photoacoustic data. Experimental results are given for asbestos fibers (chrysotile).

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16

Chen, Hung-Pin, Chao-Te Lee, Wei-Bo Liao, et al. "Analysis of High-Efficiency Mo-Based Solar Selective Absorber by Admittance Locus Method." Coatings 9, no. 4 (2019): 256. http://dx.doi.org/10.3390/coatings9040256.

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High absorptivity and low emissivity are characteristics needed in an ideal solar selective absorber. In high-temperature applications, such as a solar concentration power system in which the solar surface works under a long-term high temperature (about 400 to 800 °C), the absorber material has to maintain high absorption in the visible region, high reflectance in the infrared region, and excellent thermal stability at high temperature. In this research, the design of a molybdenum-based (Mo-based) solar selective absorber was analyzed by the admittance locus method, and the films were deposite

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17

Yang, Shi Mei, Shao Yun Shan, Qing Ming Jia, Ting Wei Hu, Li Hong Jiang, and Ya Ming Wang. "Preparation of Fibrous CaO Sorbent by Hydrothermal Method." Advanced Materials Research 534 (June 2012): 86–88. http://dx.doi.org/10.4028/www.scientific.net/amr.534.86.

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Using urea and calcium chloride as precipitator and calcium source, fibrous CaCO3 precursors were prepared using hydrothermal method, then fibrous CaO sorbent was obtained by calcination. The influence of hydrothermal temperature on CO2 absorption properties was discussed. X-ray diffraction analysis showed that pure CaCO3 phase with aragonite and calcite crystal forms was obtained. Scanning electron microscopy analysis showed that the resultant CaO sorbent presented a fibrous microstructure, which inherited the morphologies of CaCO3. The absorption capacity of the resultant CaO sorbent reached

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18

Xue, Guiting, Bowen Zhang, Yuan Zhao, et al. "Analysis Method for Photovoltaic Absorption Capacity of Distribution Network Based on Risk Quantification and Network Reconstruction." Journal of Physics: Conference Series 2592, no. 1 (2023): 012078. http://dx.doi.org/10.1088/1742-6596/2592/1/012078.

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Abstract The random characteristics of photovoltaic (PV) power will cause changes in node voltage and line power, which is an important factor affecting the photovoltaic absorption capacity of the distribution network (DN). So as to accurately evaluate the impact of photovoltaic randomness on the absorption capacity of DN, an analysis method of photovoltaic absorption capacity of DN is proposed based on risk quantification. Firstly, a photovoltaic absorption capacity evaluation model is proposed based on risk quantification, which considers the randomness of load and PV power and can improve t

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19

Vainberg, B., and Marc Durand. "Limiting Absorption Principle for Stratified Operators with Thresholds: A General Method." Applicable Analysis 82, no. 8 (2003): 821–38. http://dx.doi.org/10.1080/0003681031000154945.

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20

Takano, Yasushi, Ryouhei Hanayama, and Yusuke Makino. "Reverberant Sound Field Analysis of a Rectangular Room by Modal Synthesis Method." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 268, no. 7 (2023): 1356–64. http://dx.doi.org/10.3397/in_2023_0203.

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It is well known that the reverberation time within an enclosed space is dominated by its boundary surface absorption. The absorption can then be interpreted as averaged damping ratio of acoustical modes or a loss factor. The damping ratio can be determined during steady state excitation or during the transient decay or reverberation process. In this paper, acoustical reverberant field is considered as a synthesis of independent acoustical modes with their corresponding damping ratios. Each damping ratio is calculated from the absorption coefficient of the enclosed space considering the wavenu

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21

Scherbіna, O. "APPLICATION OF OPTICAL METHODS OF ANALYSIS FOR DETERMINATION OF TOXICANCES." Bulletin of Lviv State University of Life Safety 19 (October 2, 2019): 87–92. http://dx.doi.org/10.32447/20784643.19.2019.09.

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Introduction: Among medicines which exhibit antidepressant effect, Syndnocarb is widely used. It is used in psychiatry, in narcological practice it is prescribed to patients with chronic alcoholism, in pediatrics – children with diseases of the central nervous system. In case of overdose, it has a toxic effect and may be the cause of poisoning. Therefore, it is necessary to have the express methods of its analysis sensitive and reliable. Purpose: To develop a method of spectrophotometric analysis of a siderine in the UV region of a spectrum suitable for its rapid detection in solutions and tab

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22

Glibovytska, Nataliia, and Lesia Plaksiy. "Analysis of sorbing method of water treatment from oil." Biolohichni systemy 11, no. 2 (2019): 253–55. http://dx.doi.org/10.31861/biosystems2019.02.253.

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The efficiency of simple and accessible methods of cleaning of oil-contaminated water is investigated. The maximum absorption capacity of cotton as a natural material is identified, that quickly absorbs oil components and does not require the use of additional resources to combat water contamination. It is found that natural charcoal absorbent is inefficient in comparison with other methods of water purification from oil and requires a long time and additional pollution catchers, which is economically unprofitable. Synthetic polymer foam and white coal absorb oil in a short time, but in the la

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23

Coskun, Aysun, Naci Polat, Murat Tunc, Ebru Ilhan, Gulderen Yanıkkaya Demirel, and Omer Guzel. "A method validation of zinc analysis by atomic absorption spectroscopy." Clinical Biochemistry 42, no. 4-5 (2009): 331–32. http://dx.doi.org/10.1016/j.clinbiochem.2008.09.058.

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24

Choi, Ka-Keung, Lik Lam, and Shiu-fai Luk. "Analysis of cement by atomic absorption spectrophotometry and volumetric method." Talanta 41, no. 1 (1994): 1–8. http://dx.doi.org/10.1016/0039-9140(94)80161-4.

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25

Yousif Ghadhban, Maryam. "Dynamic Analysis of Absorption Column." University of Thi-Qar Journal for Engineering Sciences 7, no. 2 (2016): 104–19. http://dx.doi.org/10.31663/utjes.v7i2.63.

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The absorption column is one of the essential separation processes in industrial operation, so the need arises to control absorption column by process simulation and also to analyze system by method called frequency response using MATLAB8. This work dealt with gas-liquid (air-water) absorption packed column which is analyzed by bode plot and frequency response to determine the stability of the system with or without Proportional Controller (P), Proportional Integral Controller (PI) or Proportional Integral Derivatives Controller (PID).The frequency response gives the transient response informa

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26

Li, Chuang Min, and Yang Liu. "The Precision Statistical Analysis of Air Voids of Dense-Graded Asphalt Mixture Specimen Measured by Surface Dry Method." Advanced Materials Research 718-720 (July 2013): 1908–13. http://dx.doi.org/10.4028/www.scientific.net/amr.718-720.1908.

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The detecting precision is an important aspect of error control. The Standard scheduled the bituminous mixture type and water absorption level to improve detecting precision.The date statistical analyses of water absorbing capacity water absorption and air voids of practical project are made. The conclusion is that the dispersion of water absorbing capacity and water absorption is obvious because of the existence of discrete values. According the variability analysis of air voids distribution in different level and range of water absorption and different range of air voids, the detecting preci

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27

Wang, Yong Hua, Cheng Chun Zhang, Lu Quan Ren, Mohamed Ichchou, Marie Annick Galland, and Olivier Bareille. "Acoustic Performance Analysis of Bionic Coupling Multi-Layer Structure." Applied Mechanics and Materials 461 (November 2013): 22–30. http://dx.doi.org/10.4028/www.scientific.net/amm.461.22.

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The interest of this paper lies in the proposition of using bionic method to develop a new sound absorption structure. Inspired by the coupling absorption structure of the skin and feather of a typical silent flying bird – owl, a bionic coupling multi-layer structure model is developed, which is composed of a micro-silt plate, porous fibrous material and a flexible micro-perforated membrane backed with airspace. The impedance transfer method is applied to calculate the absorption coefficients and analyze the influences of different parameters of each layer on absorption coefficients of this mo

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NAKANISHI, Akane, Kazuhiro SHIGYO, Toshiyuki KAMIYA, and Kazuhiro MIYA. "A simplified Nitrogen Analysis Method using Ultraviolet Absorption Spectrochemical Analysis in Activated Sludge." Journal of Environmental Conservation Engineering 35, no. 3 (2006): 208–15. http://dx.doi.org/10.5956/jriet.35.208.

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29

H., S. Rathore, A. K. Rao Rifaqat, and Kumar M. "A simple volumetric method of mancozeb residues analysis in edible plants." Journal of India Chemical Society Vol 81, Jul 2004 (2004): 616–17. https://doi.org/10.5281/zenodo.5832513.

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Department of Applied Chemistry, Z. H. College of Engineering and Technology, Aligarh Muslim University,  Aligarh-202 002. India <em>E-mail</em>: hsruthore@mailciy.com <em>Manuscript received 2 June 2003. revised 27 November 2003, accepted 18 February 2004</em> Mancozeb residues. micronutrients (Mn<sup>2+</sup> and Zn<sup>2+</sup>) in plants have been determined using complexometric titration. Disodium salt of ethylenediaminetetraacetie acid, criochrome black T and ammonia buffer of pH 10 have been used as titrant, indicator and medium respectively. The results of volu

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30

Rong, Shimin, Cong Wang, Yawei Dong, Biwei Shi, and Huiqing Ma. "Adaptive modeling and analysis of distributed photovoltaic absorptive capacity based on improved simulated annealing algorithm." International Journal of Low-Carbon Technologies 19 (2024): 2032–39. http://dx.doi.org/10.1093/ijlct/ctae071.

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Abstract In order to improve the adaptive modeling and operational stability of distributed photovoltaic absorption capacity, a distributed photovoltaic absorption capacity adaptive modeling method based on improved simulated annealing algorithm is proposed. This method constructs a level source network load storage model for distributed photovoltaic consumption and establishes a control parameter analysis model through consumption scheduling and active/reactive power coordination control methods to analyze the dynamic limit load characteristics of the distribution network. Using an improved s

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31

Li, Han Bo, Ying Jun Zhao, Dong Hui Zhang, and Wei Pan. "A Method Based on Wavelet Transform for Mineral Spectral Characteristics Extraction." Advanced Materials Research 718-720 (July 2013): 617–20. http://dx.doi.org/10.4028/www.scientific.net/amr.718-720.617.

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The basic principle of the wavelet analysis method to extract the mineral spectral absorption characteristics is summarized and different wavelet bases,wavelet decomposition scale extraction effect are analyzed in this paper. Then, the algorithm of mineral spectral absorption characteristics based on wavelet spectral analysis is provided and a large number of experiments are carried out using the spectrums of field rock mineral. Experimental result shows that such a method is less affected by original signal noise and depict the parameters of the mineral spectral absorption feature more precis

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32

Vitton, Stanley J., Carl C. Nesbitt, and Leon Y. Sadler. "Soil Particle Size Analysis Using X-Ray Absorption." Transportation Research Record: Journal of the Transportation Research Board 1548, no. 1 (1996): 51–59. http://dx.doi.org/10.1177/0361198196154800108.

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The hydrometer method is the standard method of grain size analysis used in geotechnical engineering. Although the hydrometer method provides accurate grain size distributions and is relatively easy to conduct, it takes a minimum of 2 days to complete and is subject to operator error. In studies where small-magnitude changes or more rapid results are required, an alternative method to hydrometer testing is to use an automated particle size analysis instrument employing X-ray absorption. This technique passes a finely collated X-ray beam through a suspension of settling particle in a fluid. Bec

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33

Shivani, Herma* Kiran Rathod Dr. Chintankumar Tank Denisha Meghnathi Himanshu Parmar Pritesh Odedara. "Unraveling Complexity: A Critical Review of UV Spectrophotometric Methods for Multicomponent Analysis." International Journal of Pharmaceutical Sciences 3, no. 6 (2025): 588–602. https://doi.org/10.5281/zenodo.15591790.

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Spectroscopy is a scientific method that analyses the interaction of matter with light or electromagnetic radiation. It can be divided into atomic, molecular, absorption, and electronic levels, with UV spectroscopy being the most widely used for analysing various compounds. UV spectrophotometric methods use the principle of additivity and absorbance to record and mathematically process absorption spectra of standard solutions and sample solutions. This process leads to electron excitation, causing transitions between energy levels. Multicomponent analysis is a growing challenge in modern chemi

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34

Praveen, Kumar Tamrakar, and S. Pitre K. "Analysis of trace metals in psilomelane manganese ore." Journal of Indian Chemical Society Vol. 78, Sep 2001 (2001): 482–84. https://doi.org/10.5281/zenodo.5902650.

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Department of Chemistry, Dr. Hari Singh Gour University, Sagar-470 003, India <em>Fax : </em>91-07582-23236 <em>Manuscript received 3 Februar</em><em>y 2000, revised 19 March 2001, accepted 24 March 2001</em> Convenient and accurate, direct current polarographic, differential pulse polarographic and differential pulse anodic stripping voltammetric methods have been developed for the simultaneous determination of metals at trace level in a psilomelane manganese ore sample. Statistical treatment of the observed voltammetric data reveals high accuracy and good precision of determination. The

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Zhao, Juan, Ke Li, Hao Ban, Xing Zhao, and Xiao Liu. "Analysis and correction of atmospheric absorption attenuation in V-band antenna measurement." Journal of Physics: Conference Series 2967, no. 1 (2025): 012031. https://doi.org/10.1088/1742-6596/2967/1/012031.

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Abstract Atmospheric absorption attenuates electromagnetic waves as they propagate through space. In the V-band, there is a notable peak in atmospheric absorption that impacts antenna calibration and measurement accuracy. In this article, we investigated atmospheric absorption attenuation under different environmental conditions. Based on the investigation, the effect on antenna gain measurements was analysed and an atmospheric absorption correction method was proposed to correct the gain. By applying the method, the antenna gain value increased by approximately 0.05 dB around 60 GHz for a sta

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Vesnin, V. L. "Ensuring the stability of spectrophotometric measurement results during analysis of mixtures composition." Izmeritel`naya Tekhnika, no. 9 (November 10, 2024): 27–34. http://dx.doi.org/10.32446/0368-1025it.2024-9-27-34.

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Spectrophotometric methods for studying the composition of mixtures are considered. The need to increase the stability and accuracy of the results of spectrophotometric measurements when analyzing substances with low absorption coefficients or a low concentration of the determined substance is shown. A spectrophotometric complex with a thermostated cell is described, which enables to study gaseous and liquid mixtures. Results of study at this complex of absorption spectra of isomers of liquid xylene and their mixtures are given. Methods of increasing the stability of spectrophotometric measure

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37

Wagner, T., S. Beirle, M. Grzegorski, and U. Platt. "Satellite monitoring of different vegetation types by differential optical absorption spectroscopy (DOAS) in the red spectral range." Atmospheric Chemistry and Physics Discussions 6, no. 4 (2006): 7945–58. http://dx.doi.org/10.5194/acpd-6-7945-2006.

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Abstract. A new method for the satellite remote sensing of different types of vegetation and ocean colour is presented. In contrast to existing algorithms, our method analyses weak narrow-band reflectance structures (i.e. "fingerprint" structures) of vegetation in the red spectral range. It is based on differential optical absorption spectroscopy (DOAS), which is usually applied for the analysis of atmospheric trace gas absorptions. Since the spectra of atmospheric absorption and vegetation reflectance are simultaneously included in the analysis, the effects of atmospheric scattering and absor

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38

Wang, Zhen, and Hiroshi Takahashi. "Development of Mid-Infrared Absorption Spectroscopy for Gemstone Analysis." Minerals 13, no. 5 (2023): 625. http://dx.doi.org/10.3390/min13050625.

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Absorption spectroscopy has been widely used in gemstone societies as it enables the identification of the origin and post-treatment of gemstones in a non-destructive way. The infrared (IR) range is critical for studies of gemstones such as corundum, emerald, and diamond. Regarding the corundum sample, absorption peaks related to the -OH bond could be used as an index for heat-treatment detection, and different types of inclusions could be identified by analyzing the IR absorption spectrum. The most widely used method for measuring IR absorptions is Fourier-transform infrared spectroscopy (FTI

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39

Wagner, T., S. Beirle, T. Deutschmann, M. Grzegorski, and U. Platt. "Satellite monitoring of different vegetation types by differential optical absorption spectroscopy (DOAS) in the red spectral range." Atmospheric Chemistry and Physics 7, no. 1 (2007): 69–79. http://dx.doi.org/10.5194/acp-7-69-2007.

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Abstract. A new method for the satellite remote sensing of different types of vegetation and ocean colour is presented. In contrast to existing algorithms relying on the strong change of the reflectivity in the red and near infrared spectral region, our method analyses weak narrow-band (few nm) reflectance structures (i.e. "fingerprint" structures) of vegetation in the red spectral range. It is based on differential optical absorption spectroscopy (DOAS), which is usually applied for the analysis of atmospheric trace gas absorptions. Since the spectra of atmospheric absorption and vegetation r

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40

Michailovits, L., M. I. Török, and I. Hevesi. "Extended fringe pattern method for the analysis of the absorption coefficient." Thin Solid Films 139, no. 2 (1986): 143–46. http://dx.doi.org/10.1016/0040-6090(86)90332-9.

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41

Sparacino, Giovanni, David M. Shames, Paolo Vicini, Janet C. King, and Claudio Cobelli. "Double isotope tracer method for measuring fractional zinc absorption: theoretical analysis." American Journal of Physiology-Endocrinology and Metabolism 282, no. 3 (2002): E679—E687. http://dx.doi.org/10.1152/ajpendo.00113.2001.

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Several approaches for estimation of fractional zinc absorption (FZA) by calculating the ratio of oral to intravenous stable isotopic tracer concentrations (at an appropriate time) in urine or plasma after their simultaneous administration have been proposed in the last decade. These simple-to-implement approaches, often referred to as the double isotopic tracer ratio (DITR) method, are more attractive than the classical “deconvolution” method and the more commonly used single-tracer methods based on fecal monitoring and indicator dilution, after oral or intravenous tracer administration, resp

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Leaney, F. W., A. L. Herczeg, and J. C. Dighton. "New developments for the direct CO2 absorption method for radiocarbon analysis." Quaternary Science Reviews 13, no. 2 (1994): 171–78. http://dx.doi.org/10.1016/0277-3791(94)90044-2.

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Zhang, Feng, Yuchen Zhu, Lin Li, Suping Zhao, Xiaoyan Zhang, and Chaobo Chen. "Research on Quantitative Analysis Method of Infrared Spectroscopy for Coal Mine Gases." Molecules 30, no. 14 (2025): 3040. https://doi.org/10.3390/molecules30143040.

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Accurate and reliable detection of coal mine gases is the key to ensuring the safe service of coal mine production. Fourier Transform Infrared (FTIR) spectroscopy, due to its high sensitivity, non-destructive nature, and potential for online monitoring, has emerged as a key technique in gas detection. However, the complex underground environment often causes baseline drift in IR spectra. Furthermore, the variety of gas species and uneven distribution of concentrations make it difficult to achieve precise and reliable online analysis using existing quantitative methods. This paper aims to perfo

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OLEJNIK, KONRAD, JEAN-FRANCIS BLOCH, and PAWEL PELCZYNSKI. "Measurement of the dynamics of fluid sorption for tissue papers." July 2019 18, no. 7 (2019): 417–26. http://dx.doi.org/10.32964/tj18.7.417.

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Liquid absorption ability belongs to the most important features of tissue papers. Due to non-homogeneous internal and superficial structures, precise and fast evaluation of this property is challenging. The main aim of the presented research was to design an experimental device dedicated to the measurement of the kinetics of wetting phenomenon for tissue papers. The second aim was to evaluate whether it was possible to use image analysis for more precise characterization of liquid absorption properties of tissue paper. The obtained results showed that the method used, based on image analysis

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Juandi, M., and S. A. Santoso. "Analysis of Groundwater Infiltration using the Schlumberger Geoelectric Method." Journal of Physics: Conference Series 2049, no. 1 (2021): 012070. http://dx.doi.org/10.1088/1742-6596/2049/1/012070.

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Abstract Groundwater is one of the best water resources for clean water, which can be used to meet the needs of people's lives, such as household, irrigation, and industrial needs. Based on the theory that changes in land use will have an impact on groundwater absorption. This study aims to see and analyze underground water absorption around the gate of the University of Riau using the geoelectric method of the Schlumberger configuration. Based on the results of measurements of resistivity values and groundwater infiltration in the Gate area of Riau University, Simpang Baru, Tampan, Pekanbaru,

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Chipera, Steve J., and David L. Bish. "Measurement of Mass Absorption Coefficients Using Compton-Scattered Cu Radiation in X-ray Diffraction Analysis." Advances in X-ray Analysis 34 (1990): 325–35. http://dx.doi.org/10.1154/s0376030800014634.

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AbstractThe mass absorption coefficient is a useful parameter for quantitative characterization of materials. If the chemical composition of a sample is known, the mass absorption coefficient can be calculated directly. However, the mass absorption coefficient must be determined empirically if the chemical composition is unknown. Traditional methods for determining the mass absorption coefficient involve measuring the transmission of monochromatic X-rays through a sample of known thickness and density. Reynolds (1963,1967), however, proposed a method for determining the mass absorption coeffic

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He, Gang, Hu Yang, Tao Chen, Yuan Ning, Huatao Zou, and Feng Zhu. "Lattice Structure Design Method Aimed at Energy Absorption Performance Based on Bionic Design." Machines 10, no. 10 (2022): 965. http://dx.doi.org/10.3390/machines10100965.

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To obtain the lattice structure with excellent energy absorption performance, the structure of loofah inner fiber is studied to develop bionic design of lattice structure by experiment and simulation analysis method. From the compression experiment about the four bionic multi-cell lattice structures (bio-45, bio-60, bio-75, and bio-90) and VC lattice structures, we found that all are made of PLA and fabricated by the fused deposition modeling (FDM) 3D printer. The comprehensive performance of bio-90 lattice structure is the best in the performance of the specific volume energy absorption (SEAv

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Safa Waleed Shakir, Sarah Saad Mohammed Jawad, and Zainab Abdulmaged Khalaf. "Analysis of the Impact of Nanofluids on the Improvement in CO2 Absorption using Taguchi Method." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 115, no. 1 (2024): 83–98. http://dx.doi.org/10.37934/arfmts.115.1.8398.

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Capturing Carbon dioxide (CO2) has been the most crucial issue due to the dangerous impact of emissions of CO2 on the warming of globe and climate change. A novel class of solvent has been effectively employed in absorption technology in recent decades to eliminate CO2. The process of employing nanofluids to enhance CO2 uptake is receiving a lot of attention. However, other studies are needed to enhance the nanofluid absorption rate. The purpose of this study was to use nanofluid (based on amines) to optimize the absorption process for CO2 from flue gas. The technique was designed to extract C

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Xu, Xialian, and Laura Guihen. "English Education Method Influence Mechanism Analysis." Journal of Education, Teaching and Social Studies 6, no. 4 (2024): p178. https://doi.org/10.22158/jetss.v6n4p178.

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Upon mastering novel words in a second language (L2), students' initial vocabulary expressions and associations may not be accurate. When studying these new words, these concepts should be more precise to stay clear of errors. This study looked into whether words that are similar could aid in learning and sharpening skills. 114 adults were given comparable spelling and semantic L2 terms through comparison in certain targeted learning tasks. Participants compared words from their second language in Test 1, and terms from their first language in Test 2. Only comparisons of L2 characters written

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Ginting, Andi Lopa, and Retno Febriyastuti Widyawati. "Analysis of Commercial Bank Credit Distribution on Economic Growth and Employment Absorption in Indonesia." Optimum: Jurnal Ekonomi dan Pembangunan 12, no. 1 (2025): 33–40. https://doi.org/10.12928/optimum.v12i1.4493.

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The research to determine the effect of commercial bank lending on economic growth and employment absorption in Indonesia. The data sources used are BPS, Bank Indonesia, and OJK. The data collection method is using periodic report data (time series) for 2007-2017. The method is quantitative analysis, using path analysis. The results: commercial bank credit has a direct effect on economic growth; commercial bank credit has a direct effect on employment absorption; Economic growth does not directly affect employment absorption; Commercial bank credit has no indirect effect on employment absorpti

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