scholarly journals Investigation of thermometrical optical characteristics influence on spectral thermometry metrological characteristics

2018 ◽  
Vol 1 (2) ◽  
Author(s):  
Leonid Zhukov 1 ◽  
D. A. Petrenko 2 ◽  
А. L. Коrnienko 3
Keyword(s):  
Quantitative Determination ◽  
Spectral Ratio ◽  
Spectral Emissivity ◽  
Optical Characteristics ◽  
Reflection And Transmission ◽  
New Methods ◽  
Classical Energy ◽  
Symmetric Wave ◽  
Spectral Coefficients

The complex of investigations of optical characteristics of controlled objects and spectral symmetric-wave and two-colour compensating thermometry (SWT and TCCT) influence on their errors of method and instrumental errors is performed. Advantages of these new methods in the field of errors of method, in comparison with known spectral and also classical energy and spectral ratio thermometry are proved. It is established that right use of the SWT and the TCCT, which takes into account thermometrical conditions, allows to completely exclude methodical and instrumental components from the errors of optical temperature measurements. Spectral thermometry is based on remote quantitative determination of the spectral emissivity distributions of controlled objects. Using these distributions and well-known relationships between the spectral coefficients of emission, absorption, reflection and transmission we can determine macro-optical characteristics of these objects and remotely investigate them.

Determination of Texture Degree of NdFeB-Magnets by Means of Neutron Diffraction

2010 ◽  
Vol 168-169 ◽  
pp. 161-164 ◽  
Author(s):  
A.E. Teplykh ◽  
S.G. Bogdanov ◽  
Yong Choi ◽  
Nikolai V. Kudrevatykh ◽  
A.N. Pirogov ◽  
...  
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Neutron Diffraction ◽  
Quantitative Determination ◽  
Permanent Magnets ◽  
Reflection And Transmission ◽  
Ndfeb Magnets ◽  
Texture Degree

Six samples of Nd-Fe-B-permanent magnets, distinguished in the texture degree, have been measured by neutron diffraction in the reflection and transmission regimes. The texture in the samples was formed by application of impulses of external magnetic field 0H = 4 T. Analysis of the obtained neutron diagrams by means of the Fullprof program allowed quantitative determination of the texture degree and conclusion to be made that the texture degree grows with an increase in numbers of magnetic field impulses.

scholarly journals Quinolone Complexes with Lanthanide Ions: An Insight into their Analytical Applications and Biological Activity

Molecules ◽  
2020 ◽  
Vol 25 (6) ◽  
pp. 1347 ◽  
Author(s):  
Ana-Mădălina Măciucă ◽  
Alexandra-Cristina Munteanu ◽  
Valentina Uivarosi
Keyword(s):  
Biological Activity ◽  
Quantitative Determination ◽  
Biological Properties ◽  
Lanthanide Ions ◽  
New Methods ◽  
Analytical Applications ◽  
Highly Sensitive ◽  
Stokes Shifts ◽  
Insight Into

Quinolones comprise a series of synthetic bactericidal agents with a broad spectrum of activity and good bioavailability. An important feature of these molecules is their capacity to bind metal ions in complexes with relevant biological and analytical applications. Interestingly, lanthanide ions possess extremely attractive properties that result from the behavior of the internal 4f electrons, behavior which is not lost upon ionization, nor after coordination. Subsequently, a more detailed discussion about metal complexes of quinolones with lanthanide ions in terms of chemical and biological properties is made. These complexes present a series of characteristics, such as narrow and highly structured emission bands; large gaps between absorption and emission wavelengths (Stokes shifts); and long excited-state lifetimes, which render them suitable for highly sensitive and selective analytical methods of quantitation. Moreover, quinolones have been widely prescribed in both human and animal treatments, which has led to an increase in their impact on the environment, and therefore to a growing interest in the development of new methods for their quantitative determination. Therefore, analytical applications for the quantitative determination of quinolones, lanthanide and miscellaneous ions and nucleic acids, along with other applications, are reviewed here.

New Methods for Quantitative Determination of Brønsted Acid Sites on Solid Acids: Applicability and Limits for Al2O3-Promoted SO42−/ZrO2 Catalysts

2001 ◽  
Vol 197 (2) ◽  
pp. 344-349 ◽  
Author(s):  
Roberta Olindo ◽  
Alain Goeppert ◽  
David Habermacher ◽  
Jean Sommer ◽  
Francesco Pinna
Keyword(s):  
Quantitative Determination ◽  
Acid Sites ◽  
Solid Acids ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
Brønsted Acid Sites ◽  
New Methods ◽  
Brönsted Acid ◽  
Brönsted Acid Sites

Quantitative determination of longitudinal and transverse cross-relaxation rates

1999 ◽  
Vol 96 (9/10) ◽  
pp. 1608-1615
Author(s):  
T. E. Malliavin ◽  
H. Desvaux ◽  
M. A. Delsuc
Keyword(s):  
Quantitative Determination ◽  
Cross Relaxation ◽  
Relaxation Rates

Quantitative Determination of Gallic acid and Cyanidin-3-O-Glucoside within Sumac Extracts by HPLC-MS/MS

Planta Medica ◽  
2011 ◽  
Vol 77 (12) ◽  
Author(s):  
M Koşar ◽  
F Göger ◽  
N Kırımer ◽  
KHC Başer
Keyword(s):  
Quantitative Determination ◽  
Gallic Acid

Quantitative Determination of α-Arbutin, β-Arbutin and Hydroquinone from Viburnum, Arctostaphylos, Vaccinium, Pyrus and Ilex Species by HPLC-UV Method

Planta Medica ◽  
2013 ◽  
Vol 79 (05) ◽  
Author(s):  
YH Wang ◽  
C Avonto ◽  
B Avula ◽  
M Wang ◽  
TJ Smillie ◽  
...  
Keyword(s):  
Quantitative Determination
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