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Journal articles on the topic 'Method amounts'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 May 2022

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1

Fydrych, Dariusz, and Jerzy Łabanowski. "Determining diffusible hydrogen amounts using the mercury method." Welding International 26, no. 9 (September 2012): 697–702. http://dx.doi.org/10.1080/09507116.2011.592682.

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2

Pointurier, Fabien, Amélie Hubert, and Gaëlle Roger. "A method for dating small amounts of uranium." Journal of Radioanalytical and Nuclear Chemistry 296, no. 2 (September 26, 2012): 593–98. http://dx.doi.org/10.1007/s10967-012-2198-8.

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3

Renshaw, A. E., and P. Hatzopoulos. "On the Graduation of ‘Amounts’." British Actuarial Journal 2, no. 1 (April 1, 1996): 185–205. http://dx.doi.org/10.1017/s135732170000338x.

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ABSTRACTThe provision of graduated mortality rates, for the United Kingdom pensioners' experience, based on the so-called ‘amounts’ data sets is addressed. Specifically a methodology is investigated, building on the existing methods practiced by the CMI Bureau, which takes a more detailed account of the underlying structure of the data involved. The method is applied to the U.K. pensioners' experience and recent mortality trends in this experience revealed.

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4

Seitshiro, Modisane Bennett, and Hopolang Phillip Mashele. "Valuation of initial margin using bootstrap method." Journal of Risk Finance 21, no. 5 (June 15, 2020): 543–57. http://dx.doi.org/10.1108/jrf-10-2019-0203.

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Purpose The purpose of this paper is to propose the parametric bootstrap method for valuation of over-the-counter derivative (OTCD) initial margin (IM) in the financial market with low outstanding notional amounts. That is, an aggregate outstanding gross notional amount of OTC derivative instruments not exceeding R20bn. Design/methodology/approach The OTCD market is assumed to have a Gaussian probability distribution with the mean and standard deviation parameters. The bootstrap value at risk model is applied as a risk measure that generates bootstrap initial margins (BIM). Findings The proposed parametric bootstrap method is in favour of the BIM amounts for the simulated and real data sets. These BIM amounts are reasonably exceeding the IM amounts whenever the significance level increases. Research limitations/implications This paper only assumed that the OTCD returns only come from a normal probability distribution. Practical implications The OTCD IM requirement in respect to transactions done by counterparties may affect the entire financial market participants under uncleared OTCD, while reducing systemic risk. Thus, reducing spillover effects by ensuring that collateral (IM) is available to offset losses caused by the default of a OTCDs counterparty. Originality/value This paper contributes to the literature by presenting a valuation of IM for the financial market with low outstanding notional amounts by using the parametric bootstrap method.

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5

Smirnov, A. M., R. T. Klochko, S. N. Luganskiy, A. B. Sochlikov, and A. V. Blinov. "RESIDUAL AMOUNTS OF ANTIBIOTICS IN PECHELINE WAX." Problems of Veterinary Sanitation, Hygiene and Ecology 1, no. 3 (2018): 23–27. http://dx.doi.org/10.36871/vet.san.hyg.ecol.201803004.

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Unregulated use of antibiotics can lead to their accumulation in bee prod-ucts, in particular, in wax. The most effective methods of detecting residues of an-tibiotics in wax are the analytic test system "Charm-2", which is based on the RIA method. Experimental data testify its suitability and prospects for wide practical use in the bee wax safety control system. The sensitivity of the method to the anti-biotic oxytetracycline is 20 μg/kg with confidence of 95%.

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6

Viyannalage, Lasantha T., Stoyan Bliznakov, and Nikolay Dimitrov. "Electrochemical Method for Quantitative Determination of Trace Amounts of Lead." Analytical Chemistry 80, no. 6 (March 2008): 2042–49. http://dx.doi.org/10.1021/ac702028h.

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7

Campbell, Gossett A., and Raj Mutharasan. "Method of MeasuringBacillusanthracisSpores in the Presence of Copious Amounts ofBacillusthuringiensisandBacilluscereus." Analytical Chemistry 79, no. 3 (February 2007): 1145–52. http://dx.doi.org/10.1021/ac060982b.

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8

Humphreys, S. M., R. M. Fisher, and K. N. Frayn. "Micro-Method for Measurement of Sub-Nanomole Amounts of Triacylglycerol." Annals of Clinical Biochemistry: An international journal of biochemistry and laboratory medicine 27, no. 6 (November 1, 1990): 597–98. http://dx.doi.org/10.1177/000456329002700613.

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9

Shokrollahi, Ardeshir, and Kowsar Ramdar. "Determination of trace amounts of palladium by solution scanometric method." Journal of Taibah University for Science 11, no. 5 (September 2017): 782–87. http://dx.doi.org/10.1016/j.jtusci.2016.12.001.

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10

Grubb, R. "A METHOD FOR DEMONSTRATING MINUTE AMOUNTS OF HUMAN γ-GLOBULIN." Acta Pathologica Microbiologica Scandinavica 38, no. 4 (August 18, 2009): 339–46. http://dx.doi.org/10.1111/j.1699-0463.1956.tb01709.x.

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Pourreza, N., H. Parham, and S. Shiri. "Determination of Trace Amounts of Zirconium by Flotation - Spectrophotometric Method." Journal of the Korean Chemical Society 54, no. 3 (June 20, 2010): 283–86. http://dx.doi.org/10.5012/jkcs.2010.54.3.283.

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12

Chin, David A. "Application of the Curve-Number Method for Varying Rainfall Amounts." Journal of Irrigation and Drainage Engineering 147, no. 7 (July 2021): 06021003. http://dx.doi.org/10.1061/(asce)ir.1943-4774.0001585.

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13

Nagai, Akihisa, Kohei Mori, Yuma Shiomi, and Tohru Yoshihisa. "OTTER, a new method for quantifying absolute amounts of tRNAs." RNA 27, no. 5 (March 5, 2021): 628–40. http://dx.doi.org/10.1261/rna.076489.120.

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14

Igov, Vladimir, Ranko Simonovic, and Rangel Igov. "Kinetic determination of ultramicro amounts of thiocyanate." Facta universitatis - series: Physics, Chemistry and Technology 2, no. 4 (2002): 209–13. http://dx.doi.org/10.2298/fupct0204209i.

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A kinetic method is suggested for determing traces of thiocyanate on the basis of their activating effect on the Fe(III) catalysis of oxidation of 4-amino-N,Ndiethylaniline sulphate (ANNS) by hydrogen-peroxide. The sensitivity of the method is 50 ng/cm3. The probably relative error ranges between 5,5-10,5% for concentration interval 300-70 ng/cm3 NCS-. Kinetic equation were proposed for the investigated process. The method has relatively good selectivity.

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15

Roshidi, Muhammad Ameerul Haqim, Husna Sabrina Mahyuddin, Mohd Azrul Naim Mohamad, and Abdul Latif Noh. "The Effect of Different Fertilizer and Extraction Method on Secondary Metabolites of Azolla Pinnata." Acta Chemica Malaysia 4, no. 1 (June 1, 2020): 28–32. http://dx.doi.org/10.2478/acmy-2020-0005.

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AbstractAzolla pinnata is an aquatic plant that comes from the order of Pteridophyta and family of Azollaceae that can be found floating on the surface of waters and can only grow at non-moving or slow-moving water areas. This research aims to understand the effect of different extraction methods and fertilizers on Azolla pinnata and its secondary metabolites. The fertilizers treatments that were tested were chicken manure and AB. The different extraction methods that were tested were SFE and Soxhlet extraction. In the test, the amount of dry weight of A.pinnata obtained from using AB fertilizer was higher compared to chicken manure. For the extraction, both SFE and Soxhlet extraction produced an almost similar amount of extracts but different amounts of secondary metabolites. The amounts of the secondary metabolites were determined and analyzed using GC-MS. The metabolites identified were theamine, bioxirane, acetic acid, 9 methyl-1-decene, glycerine, dihydroxyacetone, thymine, pyranone, 6-fluoro-2-trifluoromethylbenzoic acid, 2-formyl-4,6 dichlorophenyl ester, and isoglutamine. Based on the result, treatment with AB fertilizer provides higher amounts of secondary metabolites in A.pinnata compared to chicken manure, while for extraction methods, SFE provides higher amounts of secondary metabolites in A.pinnata compared to Soxhlet extraction.

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16

Hirayama, Shuji. "Determination of Small Amounts of Niacin in Vinegar: Comparison of Liquid Chromatographic Method with Microbiological Methods." Journal of AOAC INTERNATIONAL 81, no. 6 (November 1, 1998): 1273–76. http://dx.doi.org/10.1093/jaoac/81.6.1273.

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Abstract An LC method using a new cleanup technique was compared with 2 microbiological methods for determining small amounts of niacin in vinegar. Coefficients of variation for grain vinegar and rice vinegar were 8.33 and 5.3%, respectively, with the LC method, 5.26 and 2.0% with the titrimetric method, and 5.55 and 7.11 % with the turbidimetric method. Among the 3 methods, titrimetry was the most precise. The turbidimetric method tended to yield greater positive error than the titrimetric method. On the other hand, the titrimetric method requires a longer incubation period (72 h) than the turbidimetric method. The LC method using the new cleanup procedure may be useful for routine analysis of small amounts of niacin in vinegars.

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17

Kuramochi, Yoshio, Hiroaki Terakoshi, Akira Kawarada, and Shozo Iba. "230. On the amounts of bone mineral measured by Dixon method." Japanese Journal of Radiological Technology 50, no. 8 (1994): 1147. http://dx.doi.org/10.6009/jjrt.kj00003326031.

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18

HIRAO, Takashi, Shinsuke IMAI, Hiroshi SAWADA, Nobuo SHIOMI, Satoshi HACHIMURA, and Hisanori KATO. "PCR Method for Detecting Trace Amounts of Buckwheat (Fagopyrumspp.) in Food." Bioscience, Biotechnology, and Biochemistry 69, no. 4 (January 2005): 724–31. http://dx.doi.org/10.1271/bbb.69.724.

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19

Fonong, Tekum. "Enzyme method for the spectrophotometric determination of micro-amounts of cyanide." Analyst 112, no. 7 (1987): 1033. http://dx.doi.org/10.1039/an9871201033.

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20

Rembold, Heinz, and Bernt Llackner. "Convenient method for the determination of picomole amounts of juvenile hormone." Journal of Chromatography A 323, no. 2 (January 1985): 355–61. http://dx.doi.org/10.1016/s0021-9673(01)90397-8.

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21

Shiri, Sabah, Ali Delpisheh, Ali Haeri, Abdolhossein Poornajaf, Babak Golzadeh, and Sina Shiri. "Determination of Trace Amounts of Lead Using the Flotation-spectrophotometric method." Analytical Chemistry Insights 5 (January 2010): ACI.S5948. http://dx.doi.org/10.4137/aci.s5948.

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The present study describes a simple and highly selective method for separation, preconcentration and spectrophotometric determination of extremely low concentrations of lead. It is based on flotation of a complex of Pb2+ ions and Alizarin yellow between aqueous and n-hexane interface at pH = 6. The proposed procedure is also applied for determination of lead in both tap water and prepared sea water samples. Beer's Law was obeyed over the concentration range of 3.86 × 10−8 To 8.20 × 10−7 molL−1 (8-170 ngmL−1) with an apparent molar absorptivity of 1.33 × 106 molL−1 cm−1 for a 100 mL aliquot of the water sample. The detection limit (n = 10) was 8.7 × 10−9 molL−1 (1.0 ngmL−1) and the Relative standard deviation (R.S.D), (n = 10) for 7.2 × 10−7 molL−1 (150 ngmL−1) of Pb (II) was 4.36%. A notable advantage of the method is that the determination of Pb (II) is free from the interference of almost all cations and ions found in the environment and waste water samples. The determination of Pb (II) in tap and synthetic seawater samples was also carried out by the present method. The results were satisfactorily comparable so that the applicability of the proposed method was confirmed to the real samples.

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22

Shiri, Sabah, Ali Delpisheh, Ali Haeri, Abdolhossein Poornajaf, Babak Golzadeh, and Sina Shiri. "Determination of Trace Amounts of Lead Using the Flotation-spectrophotometric method." Analytical Chemistry Insights 6 (January 2011): ACI.S5948b. http://dx.doi.org/10.4137/aci.s5948b.

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The present study describes a simple and highly selective method for separation, preconcentration and spectrophotometric determination of extremely low concentrations of lead. It is based on flotation of a complex of Pb2+ ions and Alizarin yellow between aqueous and n-hexane interface at pH = 6. The proposed procedure is also applied for determination of lead in both tap water and prepared sea water samples. Beer's Law was obeyed over the concentration range of 3.86 × 10-8 To 8.20 × 10-7 molL-1 (8-170 ngmL-1) with an apparent molar absorptivity of 1.33 × 106 molL-1 cm-1 for a 100 mL aliquot of the water sample. The detection limit (n = 10) was 8.7 × 10-9 molL-1 (1.0 ngmL-1) and the Relative standard deviation (R.S.D), (n = 10) for 7.2 × 10-7 molL-1 (150 ngmL-1) of Pb (II) was 4.36%. A notable advantage of the method is that the determination of Pb (II) is free from the interference of almost all cations and ions found in the environment and waste water samples. The determination of Pb (II) in tap and synthetic seawater samples was also carried out by the present method. The results were satisfactorily comparable so that the applicability of the proposed method was confirmed to the real samples.

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23

Arakaki, Rieko, Aya Ushio, Kunihiro Otsuka, Yasusei Kudo, and Naozumi Ishimaru. "A novel method for measuring small amounts of saliva in mice." Oral Science International 16, no. 3 (May 13, 2019): 178–80. http://dx.doi.org/10.1002/osi2.1013.

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24

Mann, G., A. Finsterbush, U. Frankl, J. Yarom, and Y. Matan. "A method of diagnosing small amounts of fluid in the knee." Journal of Bone and Joint Surgery. British volume 73-B, no. 2 (March 1991): 345–46. http://dx.doi.org/10.1302/0301-620x.73b2.2005176.

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25

Weber, Gertrud, Walter Rosenthal, and Eckard Oberdisse. "A radiometric method for the determination of NADH in subpicomole amounts." Journal of Biochemical and Biophysical Methods 15, no. 6 (April 1988): 295–306. http://dx.doi.org/10.1016/0165-022x(88)90083-8.

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26

Pourreza, N., H. Parham, and A. M. Attaran. "Reaction Rate Method for Spectrophotometric Determination of Trace Amounts of Resorcinol." Instrumentation Science & Technology 32, no. 2 (December 27, 2004): 167–73. http://dx.doi.org/10.1081/ci-120028769.

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27

Juan-Juan, Liu, and Wang Bin. "Assimilating Amounts of Precipitation Using a New Four-Dimensional Variational Method." Atmospheric and Oceanic Science Letters 2, no. 6 (January 2009): 357–61. http://dx.doi.org/10.1080/16742834.2009.11446822.

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28

Attin, T., K. Becker, C. Hannig, W. Buchalla, and R. Hilgers. "Method to Detect Minimal Amounts of Calcium Dissolved in Acidic Solutions." Caries Research 39, no. 5 (2005): 432–36. http://dx.doi.org/10.1159/000086852.

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29

Idriss, Kamal A., Magda S. Saleh, Mohamed M. Seleim, Fatma S. Hassan, and Sherif K. Idriss. "New spectrophotometric method for the determination of trace amounts of palladium." Monatshefte f�r Chemie Chemical Monthly 121, no. 8-9 (1990): 625–34. http://dx.doi.org/10.1007/bf00809765.

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30

Orzechowski, Mirosław, Sławomir Smó;lczyński, Jacek Długosz, and Paweł Pozniak. "Measurements of Texture of Soils Formed from Glaciolimnic Sediments by Areometric Method, Pipette Method and Laser Diffraction Method." Soil Science Annual 65, no. 2 (October 29, 2014): 72–79. http://dx.doi.org/10.2478/ssa-2014-0011.

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Abstract The aim of the research was to compare the results of texture analyses of glaciolimnic sediments deposited in the basins of ice-dammed lakes origin in north eastern Poland. The study was carried out using aerometric method, pipette method and laser diffraction method. The studied soils were classified as Haplic and Mollic Vertisol, Vertic Cambisol, and Gleyic Chernozem. The soils were formed from clayey (clay, heavy clay), loamy (loam, clay loam, sand clay loam) and silty (silt loam, clay loam) deposits. The studied soils did not contain fractions > 2.0 mm. The amounts of clay fraction (< 0.002 mm) measured by areometric and pipette methods were similar and strongly correlated. In comparison to laser diffraction method, these amounts were 3-4-fold higher. The sub-fraction of fine silt (0.02-0.002 mm) predominated in soil formations analyzed by laser diffraction method. In comparison to areometric or pipette method, the amounts of fine silt were 2-4 fold higher. Basing on the calculated sedimentological indices, it was stated that the examined soils were well sorted and the mean grain diameter (GSS) was very low and did not exceed 0.005 mm in areometric and pipette methods, and 0.011 mm in laser diffraction method for clay sediments.

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31

Innan, Hideki. "A Method for Estimating the Mutation, Gene Conversion and Recombination Parameters in Small Multigene Families." Genetics 161, no. 2 (June 1, 2002): 865–72. http://dx.doi.org/10.1093/genetics/161.2.865.

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Abstract A simple two-locus gene conversion model is considered to investigate the amounts of DNA variation and linkage disequilibrium in small multigene families. The exact solutions for the expectations and variances of the amounts of variation within and between two loci are obtained. It is shown that gene conversion increases the amount of variation within each locus and decreases the amount of variation between two loci. The expectation and variance of the amount of linkage disequilibrium are also obtained. Gene conversion generates positive linkage disequilibrium and the degree of linkage disequilibrium decreases as the recombination rate is increased. Using the theoretical results, a method for estimating the mutation, gene conversion, and recombination parameters is developed and applied to the data of the Amy multigene family in Drosophila melanogaster. The gene conversion rate is estimated to be ∼60–165 times higher than the mutation rate for synonymous sites.

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32

Teixeira, Pedro, Dulce Maria Rodrigues, and Altino Loureiro. "Modelling Local Brittle Zones in Welds Using the Finite Element Method." Materials Science Forum 514-516 (May 2006): 1419–23. http://dx.doi.org/10.4028/www.scientific.net/msf.514-516.1419.

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This paper reports the results of a numerical study concerning the influence of local brittle zones intersecting the crack front on the fracture behaviour of welded joints. This work was performed using the numerical simulation of the three point bending test of weld samples with different amount of brittle structures at the crack front. Using 3D finite element discretization it was possible to simulate welded samples with very small fractions of brittle zone at the crack front, such as 5 %. Comparing the results of samples with increasing proportion of brittle zone it was observed a significant decrease in the crack growth resistance with increasing amounts of brittle material. This decrease in crack growth resistance was obtained even for samples with very small amounts of brittle material at the crack front.

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33

Rakitskii, Valery N., Nataliia E. Fedorova, Marina S. Grechina, Olga E. Egorchenkova, and Natalya A. Stepanova. "Residual amounts of pesticides in citrus fruits: analytical control." Hygiene and sanitation 100, no. 5 (June 15, 2021): 476–81. http://dx.doi.org/10.47470/0016-9900-2021-100-5-476-481.

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Introduction. Thanks to possessing beneficial properties and vitamin content, citrus fruits occupy a prominent place in the ubiquitous nutrition of all ages due to various crops. On the other hand, due to climatic conditions, they cannot be cultivated in our country and are classified as imported products, which justifies the importance of controlling their safety. Purpose of the work. The creation of a multicomponent method for determining the residual amounts of pesticides and their metabolites in citrus fruits. Materials and methods. HPLC with triple quadrupole mass detector in multiple reaction monitoring (MRM) mode and capillary gas-liquid chromatography with mass selective detector (GC-MC) in selected ion monitoring mode (SIM) together were used to perform the identification and quantitative determination of the active substances of pesticides of various classes (amino pyrimidines, imidazoles, carbamates, strobilurins, triazoles, organophosphorus compounds, etc.) As a sample preparation method, there was used the QuEChERS technology, based on the extraction of pesticides with an organic solvent from a homogenized sample in the presence of salts containing citrate buffer and the purification of the extracts by dispersive solid-phase extraction. Results. To control the safety of citrus fruits (lemons, grapefruits, oranges, tangerines) imported from Egypt, Turkey and Abkhazia, purchased on the food market, a multi-method was used for determining the residual amounts of a wide range of pesticide compounds (50 names of active ingredients of pesticides and their toxic metabolites) in citrus fruits. The identified levels of active pesticide ingredients did not exceed the established MRLs. Conclusion. The modern development of the analytical chemistry of pesticides, the use of a tandem of gas and liquid chromatography with mass spectrometric detection made it possible to implement a group method for the quantitative determination of the active substances of pesticides and their toxic metabolites in citrus fruits. Modern development makes it possible to detect the contamination of their residual amounts in the processed products.

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34

Davidson, Stephanie A., and William Melnick. "A Clinically Feasible Method for Determining Frequency Resolution." Journal of Speech, Language, and Hearing Research 31, no. 2 (June 1988): 299–303. http://dx.doi.org/10.1044/jshr.3102.299.

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Psychophysical tuning curves were generated by normally hearing and hearing-impaired subjects using two methods; a detailed laboratory method and a Bekesy method proposed as suitable for clinical use. The two methods were compared for stability, the amount of masking produced and the pattern of the masking functions. The two measures of frequency resolution were found to be equally reliable and showed the same range of repeatability as simple pure tone thresholds. The patterns of the masking functions were similar regardless of the method used. However, the absolute amounts of masking indicated with each method were significantly different, with more masking obtained when the clinical method was used.

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35

N, Chaitanya, Arshad Am, Praveen Krk, Prashant C, Sandeep Bailwad, Navin P, Balaji O, Yogesh C, and Saurab K. "SPACE CLOSURE IN BIALVEOLAR DENTAL PROTRUSION CASES - A COMPARATIVE COMBINATION METHOD." Asian Journal of Pharmaceutical and Clinical Research 10, no. 7 (July 1, 2017): 106. http://dx.doi.org/10.22159/ajpcr.2017.v10i7.17504.

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Objective: To measure and compare the amount, rate and anchor loss after the en masse retraction of all anteriors with titanium mini-implant anchorage and conventional molar anchorage.Methods: This comparative clinical study sample comprised 12 patients (10 females, 2 males; mean age between 16 and 22 years). The implants were placed in the maxillary and mandibular arches. Preretraction and post retraction lateral cephalograms were taken for measuring the amount, rate and anchor loss after the retraction.Results: Mean en masse retraction amounts, the rate of movement per month, and horizontal and vertical anchor loss at the maxillary implant site were 4.79 mm, 0.58 mm, 0 mm, and 0 mm, respectively. In the mandible, on implant sides were 4.66 mm, 0.56 mm, 0 mm, and 0 mm. Mean en masse retraction amounts, the rate of movement per month, and horizontal and vertical anchor loss at the maxillary conventional molar anchor side were 4.08 mm, 0.49 mm, 2.91 mm, and 1.66 mm. In the mandible, on conventional anchor sides were 3.54 mm, 0.48 mm, 3.12 mm, and 1.95 mm.Conclusion: En masse retraction had a faster rate of space closure with mini-implants as anchor units than the conventional molar anchorage preparation.

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36

NAKANO, Shigenori, Mikio HAYASHI, and Takuji KAWASHIMA. "Determination of Nanogram Amounts of Copper(II) by the Catalytic-Photometric Method." Analytical Sciences 9, no. 5 (1993): 695–99. http://dx.doi.org/10.2116/analsci.9.695.

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37

Mousavi, M. "A sensitive flow-injection method for determination of trace amounts of nitrite." Talanta 45, no. 6 (April 1998): 1247–53. http://dx.doi.org/10.1016/s0039-9140(97)00240-3.

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38

Taher, Mohammad Ali, Hamideh Asadollahzadeh, and Hamid Fazelirad. "Determination of trace amounts of iron by a simple fluorescence quenching method." Analytical Methods 7, no. 16 (2015): 6726–31. http://dx.doi.org/10.1039/c5ay00859j.

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A simple and sensitive spectrofluorimetric method based on the reaction of iron and tiron in acidic medium is developed for the determination of Fe(iii), which gives an intense fluorescence quenching that was measured at 345 nm (excitation at 292 nm).

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39

Yang, R., M. C. Johnson, and B. Ray. "Novel method to extract large amounts of bacteriocins from lactic acid bacteria." Applied and Environmental Microbiology 58, no. 10 (1992): 3355–59. http://dx.doi.org/10.1128/aem.58.10.3355-3359.1992.

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40

Murray, E. J. "Improved Method for Generating Microarray Probes Using Submicrogram Amounts of Total RNA." Molecular Biotechnology 23, no. 2 (2003): 171–78. http://dx.doi.org/10.1385/mb:23:2:171.

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41

YOSHINAGA, Tetsutaro, Toshimi IURA, and Kentaro KAWANO. "Improvement of diphenylcarbazone method for determination of small amounts of chloride ion." Bunseki kagaku 37, no. 2 (1988): 76–82. http://dx.doi.org/10.2116/bunsekikagaku.37.2_76.

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42

Monev, M., M. E. Baumgärtner, and Ch J. Raub. "An Electrochemical Method to Determine Small Amounts of Palladium in Aqueous Solution." Journal of The Electrochemical Society 138, no. 6 (June 1, 1991): L16—L17. http://dx.doi.org/10.1149/1.2085889.

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43

Võ Anh, Khuê. "Research on a new spectrophotometric method for determinating trace amounts of fluoride." Journal of Science and Technology Issue on Information and Communications Technology 17, no. 12.1 (December 31, 2019): 24. http://dx.doi.org/10.31130/jst-ud2019-074e.

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A new spectrophotometric method for determinating trace amounts of fluoride has been introduced in this article. The principle of the method is based on the reaction of fluoride with a complex of aluminum ion and xylenol orange reagent (Al-XO). The concentration of fluoride in water is determined by measuring the red color of the Al-XO complex at 555 nm or measuring the yellow color of the XO reagent at 430 nm. The factors affecting the method for the determination of fluoride were examined. At the optimum condition, the limit of quantitation of this method is 0.08-2.1 mg/L. Based on an analysis of fluoride in the actual samples, the error of the method is less than 6%. A new point of this article is that this is the first time the type of calibration curve graph A = f (logC) in the spectrophotometric method (where: A – absorption; log - logarithm; C – concentration of fluoride) has been used in the world.

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Ladurner, Edith, Jordi Bosch, Stefano Maini, and William P. Kemp. "A method to feed individual bees (Hymenoptera: Apiformes) known amounts of pesticides." Apidologie 34, no. 6 (November 2003): 597–602. http://dx.doi.org/10.1051/apido:2003055.

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Olsson, Lisbeth, Torbjörn Lindén, and Bärbel Hahn-Hägerdal. "A rapid chromatographic method for the production of preparative amounts of xylulose." Enzyme and Microbial Technology 16, no. 5 (May 1994): 388–94. http://dx.doi.org/10.1016/0141-0229(94)90153-8.

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Mohagheghzadeh, Abdolali, Azra Gholami, Shiva Hemmati, and Shadab Dehshahri. "Bag Culture: A Method for Root-Root Co-Culture." Zeitschrift für Naturforschung C 63, no. 1-2 (February 1, 2008): 157–60. http://dx.doi.org/10.1515/znc-2008-1-229.

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A method named “bag culture” was developed for coculturing of Linum persicum (section Syllinum) and L. austriacum (section Linum) hairy roots. For this propose L. austriacum and L. persicum hairy root cultures were established using Agrobacterium rhizogenes in McCown medium. L. persicum hairy roots in bags (1 mm2 mesh) were successfully grown together with L. austriacum hairy roots. The amounts of podophyllotoxin (PTOX) and 6-methoxypodophyllotoxin (MPTOX) produced by L. persicum hairy root cultures were detected using HPLC. The results indicated that the amounts of both lignans and growth indexes of the two hairy roots decreased, that may be partly due to a competition between the two types of culture in using precursors of biosynthetic metabolites and the amount of culture medium which is available for each hairy root. However, MPTOX (0.17 g/100 g DW) and PTOX (0.02 g/100 g DW) levels of the L. persicum single culture in bag were significantly higher than of the other cultures which may be due to the immobilization effect of the bag.

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Guo, Shi, Jésus Raya, Dingkun Ji, Yuta Nishina, Cécilia Ménard-Moyon, and Alberto Bianco. "Is carboxylation an efficient method for graphene oxide functionalization?" Nanoscale Advances 2, no. 9 (2020): 4085–92. http://dx.doi.org/10.1039/d0na00561d.

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We investigated the carboxylation of graphene oxide using chloroacetic acid and different amounts of NaOH. Increase of carboxyl groups was observed only at high amounts of NaOH, but partial reduction attenuates the yield of further functionalization.

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Sun, Yun Sen, Bo Qiu, and Qing Shan Li. "The Research of Negative Ion Test Method for Fabric." Advanced Materials Research 756-759 (September 2013): 138–40. http://dx.doi.org/10.4028/www.scientific.net/amr.756-759.138.

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We developed a device for automatic closed friction and analyzed its test results in this paper, which showed the influence factors in the test methods of textile negative ion occurrence amounts. The textile negative ion occurrence amounts in different time stages were tested in this process; the analysis of its influence of temperature and humidity has certain reference significance for improving testing device for testing textile negative ion concentration, on the basis, functional textiles were also studied. Finally, we put forward the influence factors in the test methods of textile negative ion occurrence amounts.

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Stuive, Ilse, Henk A. L. Kiers, Marieke E. Timmerman, and Jos M. F. ten Berge. "The Empirical Verification of an Assignment of Items to Subtests." Educational and Psychological Measurement 68, no. 6 (March 21, 2008): 923–39. http://dx.doi.org/10.1177/0013164408315264.

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This study compares two confirmatory factor analysis methods on their ability to verify whether correct assignments of items to subtests are supported by the data. The confirmatory common factor (CCF) method is used most often and defines nonzero loadings so that they correspond to the assignment of items to subtests. Another method is the oblique multiple group (OMG) method, which defines subtests as unweighted sums of the scores on all items assigned to the subtest, and (corrected) correlations are used to verify the assignment. A simulation study compares both methods, accounting for the influence of model error and the amount of unique variance. The CCF and OMG methods show similar behavior with relatively small amounts of unique variance and low interfactor correlations. However, at high amounts of unique variance and high interfactor correlations, the CCF detected correct assignments more often, whereas the OMG was better at detecting incorrect assignments.

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Dr.A.Mekala. "A Semantic Text Summarization Method using ontology based Knowledge." November 2020 6, no. 11 (November 23, 2020): 122–25. http://dx.doi.org/10.46501/ijmtst061122.

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Data mining is a method which finds useful patterns from large amount of data. As vast amounts of information are created quickly, effective information access becomes an important matter. Particularly for important domains, such as health check and monetary areas, well-organized recovery of succinct and related information is highly desired. In this paper we propose a new user query based text summarization technique that makes use of WordNet, a common information source from Princeton University. Our summarization structure is expressly tuned to recapitulate health care documents.

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