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  JOURNAL "NP" ISSUES

"Nauchnoe Priborostroenie", 2018, Vol. 28, no. 1. ISSN 2312-2951, DOI: 10.18358/np-28-1-1814

"NP" 2018 year Vol. 28 no. 1.,   ABSTRACTS

ABSTRACTS, REFERENCES

D. A. Belov, Yu. V. Belov, V. E. Kurochkin

NEW METHOD OF DNA MELTING SIGNAL TREATMENT

"Nauchnoe priborostroenie", 2018, vol. 28, no. 1, pp. 3—10.
doi: 10.18358/np-28-1-i310
 

The improved model of DNA melting signal is proposed in the article. The model is based on power polynomials of degree 3 (SP). Based on the model, a technique for processing the DNA melting signal has been developed, the main result of which is the determination of the DNA melting temperature Tm. The new technique allows to decrease the analysis time by increasing the temperature measurement pitch while simultaneously narrowing temperature range. Adequacy proofs of the model based on the SP are given. The application results of developed technique and of the known technique based on the sigmoid function (SF) are compared. The possibility of the technique using for determining the thermocycler tubes holder temperature distribution nonuniformity during melting mode is shown.
 

Keywords: DNA, PCR, nucleic acid analyzer, approximation, High Resolution Melt analysis

Author affiliations:

Institute for Analytical Instrumentation of RAS, Saint-Petersburg, Russia

 
Contacts: Belov Dmitriy Anatolyevich, onoff_10@mail.ru
Article received in edition 31.01.2018
Full text (In Russ.) >>

REFERENCES

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    URL: https://ru.wikipedia.org/wiki/Ãèáðèäèçàöèÿ_ÄÍÊ
  6. Rebrikov D.V., Samatov G.A., Trofimov D.Yu. et al. PCR v "real'nom vremeni" [PCR in "real time"]. Moscow, BIOM. Laboratoriya znaniy Publ., 2009. 223 p. (In Russ.).
    URL: http://nashol.com/2014072579193/pcr-v-realnom-vremeni-rebrikov-d-vsamatov-g-a-trofimov-d-u-2009.html
  7. Melting Temperature Calculation Tm ToolSM. University of Utah, Wittwer Lab (USA). URL: http://www.dna.utah.edu/tm/tool.html
  8. Introduction to High Resolution Melt Analysis. Application Guide. URL: http://www.kapabiosystems.com.
  9. Belov D.A., Korneva N.A., Aldekeeva A.C., Belov Yu.V., Kiselev I.G. [Genetic analyzer resolution increasing at DNA melting temperature determination]. Nauchnoe Priborostroenie [Scientific Instrumentation], 2016, vol. 26, no. 2, pp. 17—22. (In Russ.). Doi: 10.18358/np-26-2-i1722.
  10. Belov D.A., Aldekeeva A.C., Belov Yu.V., Kiselev I.G. [Nucleic acids analyzer holes temperature spread determining method. Nauchnoe Priborostroenie [Scientific Instrumentation], 2017, vol. 27, no. 4, pp. 34—39. Doi: 10.18358/np-27-4-i3439. (In Russ.).
  11. Eydel'shteyn M.V., Alekseev Ya.I., Nikulin A.A, Romanov A.V., Kozlov R.S. Sposob detekzii spezificheskich nukleotidnych posledovatel'nostey i nukleotidnych zamen s pomosch'yu PCR v rezhime real'nogo vremeni s effektom gasheniya fluoreszenzii zonda praymerom [Way of detection of the specific nucleotide sequences and nucleotide replacements by means of PCR in real time with effect of clearing of fluorescence of the probe with a primer]. Patent RF no. 2451086, MPK C12Q 1/68, is published 20.05.2012. Bulletin No. 14. (In Russ.).
  12. Zemlyakov V.V. Obrabotka rezul'tatov izmereniy v Matlab: uchebno-metodicheskoe posobie [[Processing of results of measurements in Matlab: educational and methodical manual]]. Rostov-na-Donu, 2008. 40 p. (In Russ.).
  13. Sirota A.A. Metody i algoritmy analiza dannych i ich modelirovanie v MATLAB: ucheb. posobie [Methods and analysis algorithms of data and their simulation in MATLAB: studies manual]. Saint-Petersburg, BHV-Petersburg Publ., 2016. 384 p. (In Russ.).
  14. Belov D.A., Belov Yu.V., Manoylov V.V. [DNA melting data processing techniques development]. Nauchnoe Priborostroenie [Scientific Instrumentation], 2017, vol. 27, no. 1, pp. 83—89. (In Russ.). Doi: 10.18358/np-27-1-i8389.
 

O. V. Nepomnyashcy, A. I. Postnikov, D. V. Popov

MATHEMATICAL MODELING OF THE LASER RADAR METHOD
OF DETERMINING EXTREMELY LOW CONCENTRATIONS
OF HYDROCARBONS IN THE SURFACE LAYER

"Nauchnoe Priborostroenie", 2018, vol. 28, no. 1, pp. 11—17.
doi: 10.18358/np-28-1-i1117
 

The proposed approach to the problem of localization of hydrocarbon deposits by the detection of very small surface leaks of natural gas in lidar remote sensing of the earth's surface. The mathematical apparatus to represent the alignment of the lidar, which is based on the solution of the lidar equation taking into account correction factors. Modeling in the software package Matlab and formulated a list of boundary conditions to develop the complex. The combined use of known physical models of the atmosphere and the solution of the lidar equation, taking into account the factors receiving equipment used as the basis for the development of the principle of operation hardware-software complex for remote sensing of the earth.
 

Keywords: lidar, remote sensing, lidar equation, mathematical tool, natural gas

Author affiliations:

Siberian Federal University, Krasnoyarsk, Russia

 
Contacts: Popov Dmitriy Viktorovich, juuuis92@gmail.com
Article received in edition 31.01.2018
Full text (In Russ.) >>

REFERENCES

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  5. Nepomnyashcy O., Veicov E., Kopilov V., Khabarov V., Popov D. The LIDAR technology and earth remote sensing for small space vehicles. International Siberian
    Conference on Control and Communications     2015 (SIBCON), 2015, pp. 306—311.
  6. Nepomnyaschiy O.V., Ten S.F., Chabarov V.A. [Mathematical and the hardware of a complex of geophysical surveys for remote, aviation sensing of the land surface]. Aviakosmicheskoe priborostroenie [Aerospace instrument making], 2011, pp. 38—43. (In Russ.).
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  8. Yakimov A.V. Fizika shumov i fluktuaziy parametrov: uchebnoe posobie [Physics of noise and fluctuations of parameters: manual]. Nizhniy Novgorod, Nizhegorodskiy gosuniversitet, 2013. 85 p. (In Russ.).
  9. Nebuloni R. Empirical relationships between extinction coefficient and visibility in fog. Applied Optics, 2005, vol. 44, no. 18, pp. 3795—3804. Doi: 10.1364/AO.44.003795.
 

A. I. Belozertsev1, O. V. Cheremisina2, S. Z. El Salim3, V. V. Manoylov4,5, I. V. Zarutskiy4

ALGORITHMS FOR DATA PROCESSING IN GAS ANALYTICAL
COMPLEXES WITH SEMICONDUCTOR SENSORS FOR DETECTING CONTAMINANTS
IN ROCKET FUEL COMPONENTS

"Nauchnoe Priborostroenie", 2018, vol. 28, no. 1, pp. 18—29.
doi: 10.18358/np-28-1-i1829
 

In this paper, we describe the algorithms for processing data from semiconductor sensors that are part of the analytical means for controlling the vapors of rocket fuel components (RFC) in air, liquids, and solids. Data processing algorithms are designed for the quantitative analysis of individual components of RFC, as well as for the formation of information signs necessary for the classification of detected components. A method based on wavelet analysis, which allows to automatically distinguish a pure sample of the investigated gas from a sample containing impurities, impurities or additives is proposed.
 

Keywords: algorithms for processing gas analysis data, gas sensitive semiconductor sensors, components of rocket fuels, gas analytical instruments, environmental protection

Author affiliations:

1Research Institute of Physical Measurements. Penza, Russian Federation
2 Saint-Petersburg Mining University, Russian Federation
3Ltd "Omega", Saint-Petersburg, Russian Federation
4Institute for Analytical Instrumentation of RAS, Saint-Petersburg, Russia
5 ITMO University, Saint-Petersburg, Russian Federation

 
Contacts: Manoylov Vladimir Vladimirovich, manoilov_vv@mail.ru
Article received in edition 3.11.2017
Full text (In Russ.) >>

REFERENCES

  1. Belozertsev A.I., Cheremisina O.V., El-Salim S.Z., Manoylov V.V. [Deployed gas analytical instrumentation systems for detection of rocket fuel components in the environment (review)]. Nauchnoe Priborostroenie [Scientific Instrumentation], 2017, vol. 27, no. 2, pp. 91—102. (In Russ.). Doi: 10.18358/np-27-2-i91102.
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  6. Belozertsev A.I., Cheremisina O.V., El-Salim S.Z., Manoylov V.V. Quantitative determination of asymmetric dimethylhydrazine in solutions by the Raman spectroscopy method. Nauchnoe Priborostroenie [Scientific Instrumentation], 2017, vol. 27, no. 2, pp. 47—56. (In Russ.). Doi: 10.18358/np-27-2-i4756.
  7. Nikolaev A.V., El-Salim S.Z. Classification of signals during the analysis of gas mixtures. URL: http://rl-omega.ru/docs/Classification.pdf. (In Russ.).
  8. Matlab. Exponenta. URL: http://matlab.exponenta.ru/wavelet/book1/14/wavemngr.php. (In Russ.).
  9. D'yakonov V.P. Vejvlety. Ot teorii k praktike. Seriya: Polnoe rukovodstvo pol'zovatelya [Wavelets. From theory to practice. Series: A comprehensive user guide]. Moscow, Solon-press Publ., 2010. 400 p. (In Russ.).
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  11. Manoylov V.V., Titov Yu.A., Kuzmin A.G., Zarutskiy I.V. [Algorithms of discriminant analysis for classification of mass spectra of exhaled gases]. Nauchnoe Priborostroenie [Scientific Instrumentation], 2017, vol. 27, no. 3,
    pp. 33—42. (In Russ.). Doi: 10.18358/np-27-3-i3342.
  12. Manoilov V.V., Titov Yu.A., Kuzmin A.G., Zarutskii I.V. [Methods for processing and classifying mass spectra of exhaled gases using discriminant analysis]. Nauchnoe Priborostroenie [Scientific Instrumentation], 2016, vol. 26, no. 3, pp. 50—56. (In Russ.). Doi: 10.18358/np-26-3-i5056
 

D. A. Kravchuk, I. B. Starchenko

MATHEMATICAL MODELING OF THE OPTOACOUSTIC
SIGNAL FROM AGGREGATED ERYTHROCYTES
TO ASSESS THE LEVEL OF AGGREGATION

"Nauchnoe Priborostroenie", 2018, vol. 28, no. 1, pp. 30—36.
doi: 10.18358/np-28-1-i3036
 

The presented model of the formation of an optoacoustic signal under the influence of an Nd: YAG laser on model blood samples with aggregated erythrocytes, to study how the amplitude of the optoacoustic (OA) signal and the power spectrum will vary depending on the level of aggregation of erythrocytes. A mathematical model of the packing of erythrocytes has been developed for modeling the aggregation of red blood cells. It is established that the amplitude of the optoacoustic signal increases with increasing aggregation level and the frequency of the spectral power of the signal decreases.
 

Keywords: optoacoustic signal, aggregation, erythrocytes, spectral power density, laser

Author affiliations:

Southwest State University, Taganrog, Russia

 
Contacts: Kravchuk Denis Aleksandrovich, kravchukda@sfedu.ru
Article received in edition 25.01.2018
Full text (In Russ.) >>

REFERENCES

  1. Kravchuk D.A., Starchenko I.B. [Mathematical simulation of an optikoakustichesky signal from spherical absorbers on the example of erythrocytes]. Izvestiya Yugo-Zapadnogo gosudarstvennogo universiteta. Seriya: Upravlenie, vychislitel'naya technika, informatika. Medizinskoe priborostroenie [News of the Southwest state university. Series: Control, ADP equipment, informatics. Medical instrument making], 2017, vol. 7, no. 3, pp. 101—107. (In Russ.).
  2. Starchenko I.B., Kravchuk D.A., Kirichenko I.A. [Prototype optoacoustic laser cytomeasure]. Medizinskaya technika [Medical equipment], 2017, no. 5, pp. 4—7. (In Russ.).
  3. Kravchuk D.A. [The system of flowing laser diagnostic of liquids in case of generation of an optoaudible tone on diffusers of spherical shape]. Kachestvo i zhizn' [Quality and life], Moscow, 2017, no. 4, pp. 74—78. (In Russ.).
  4. Kravchuk D.A. [About a method of simulation of optoaudible tones from sources of spherical shape on the example of erythrocytes]. Kachestvo i zhizn' [Quality and life], Moscow, 2017, no. 4, pp. 78—80. (In Russ.).
  5. Savery D., Cloutier G. Effects of red cell clustering and anisotropy on ultrasound blood backscatter: a Monte Carlo study. IEEE Trans. Ultrason. Ferroelectr. Freq. Control, 2005, vol. 52, no. 1, pp. 94—103. Doi: 10.1109/TUFFC.2005.1397353.
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  7. Diebold G.J. Photoacoustic monopole radiation: Waves from objects with symmetry in one, two and three dimensions. Photoacoustic Imaging and Spectroscopy / L.V. Wong (ed.), Taylor & Francis Group, LLC, London, 2009, pp. 3—17.
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  10. Kravchuk D.A. [The pilot studies and process modeling of generation of optoacoustic waves]. Elektronnyy nauchnyy zhurnal "Inzhenernyy vestnik Dona" [Online scientific magazine "Engineering Bulletin of Don"], 2017, vol. 45, no. 2. (In Russ.).
    URL: http://www.ivdon.ru/ru/magazine/archive/n2y2017/4234.
  11. Kravchuk D.A. [Theoretical researches of generation of optoacoustic waves in liquid cylindrical absorbers]. Elektronnyy nauchnyy zhurnal "Inzhenernyy vestnik Dona" [Online scientific magazine "Engineering Bulletin of Don"], 2017, vol. 46, no. 3. (In Russ.).
    URL: http://www.ivdon.ru/ru/magazine/archive/N3y2017/4350. ISSN 2073-8633
  12. Kravchuk D.A. [Analytical result of generation of optoacoustic waves for spherical absorbers in a distant field]. Elektronnyy nauchnyy zhurnal "Inzhenernyy vestnik Dona" [Online scientific magazine "Engineering Bulletin of Don"], 2017, vol. 47, no. 4. (In Russ.).
    URL: http://www.ivdon.ru/ru/magazine/archive/n4y2017/4436
  13. Starchenko I.B., Kravchuk D.A., Kirichenko I.A. An optoacoustic laser cytometer prototype. Biomedical Engineering, Springer, 2018, vol. 51, no. 5, pp. 308—312.
  14. Kravchuk D.A. [Ïpèìeíeíèe oïòoaêócòè÷ecêèõ ìeòoäoâ â áèoìeäèöèícêèõ èccëeäoâaíèÿõ]. Elektronnyy nauchnyy zhurnal "Inzhenernyy vestnik Dona" [Online scientific magazine "Engineering Bulletin of Don"], 2017, no. 4. (In Russ.). URL: http://www.ivdon.ru/ru/magazine/archive/n4y2017/4484
 

A. I. Zhernovoy, Yu. V. Ulashkevich, S. V. Diachenko

THE MEASUREMENT OF MAGNETIC MOMENTS
OF FERROMAGNETIC NANOPARTICLES BY THE POSITIONS
OF THE LINES OF INFRA RED SPECTRA
OF A MAGNETIC LIQUID IN A MAGNETIC FIELD

"Nauchnoe Priborostroenie", 2018, vol. 28, no. 1, pp. 37—44.
doi: 10.18358/np-28-1-i3744
 

The investigation infra red spectra of a magnetic liquid in a magnetic field showed, that a rotation lines were shifted, when a magnetic field was changed. We determined the magnetic moments of nanoparticles that are equal tu 1.0·10–19, 3.2·10–19, 8.7·10–19 Am2. Magnetic moments, which were measured by electromagnetic methods, were the average meanings of discrete magnetic moments.
 

Keywords: magnetic liquid, one domain nanoparticles of magnetite, infra red spectra, discrete magnetic moments

Author affiliations:

Saint-Petersburg State Institute of Technology (Technical University), Russia

 
Contacts: Zhernovoy Aleksandr Ivanovich, azhspb@rambler.ru
Article received in edition 17.10.2017
Full text (In Russ.) >>

REFERENCES

  1. Zhernovoy A.I., Ulashkevich Yu.V., Diyachenko S.V. [Magnetic fluid in magnetic field infrared absorbtion spectra investigation]. Nauchnoe Priborostroenie [Scientific Instrumentation], 2016. vol. 26, no. 2, pp. 60—63. Doi: 10.18358/np-26-2-i6063. (In Russ.).
  2. Zhernovoy A.I., Ulashkevich Yu.V., Diyachenko S.V. [The discreteness of magnetic moments of single-domain ferromagnetic nanoparticles]. Nauchnoe Priborostroenie [Scientific Instrumentation], 2017, vol. 27, no. 1, pp. 72—76. Doi: 10.18358/np-27-1-i7276. (In Russ.).
  3. Zhernovoy A.I., Ulashkevich Yu.V., Diyachenko S.V. [The study of the infrared spectrum of a magnetic nanoparticles in a magnetic field structure]. Nauchnoe Priborostroenie [Scientific Instrumentation], 2017, vol. 27, no. 2, pp. 61—65. Doi: 10.18358/np-27-2-i6165. (In Russ.).
  4. Zhernovoy A.I., Ulashkevich Yu.V., Diyachenko S.V. [The study of dependence the infrared spectrum of magnetic fluid from magnetic field]. Nauchnoe Priborostroenie [Scientific Instrumentation], 2017, vol. 27, no. 3, pp. 65—69. Doi: 10.18358/np-27-3-i6569. (In Russ.).
  5. Zhernovoi A.I., Naumov V.N., Rudakov Yu.R. [Paramagnetic nanoglobules dispersion curve definition via magnetization and magnetizable field using nmr method]. Nauchnoe Priborostroenie [Scientific Instrumentation], 2009, vol. 19, no. 3, pp. 57—61. URL: http://213.170.69. 26/en/mag/2009/abst3.php#abst8. (In Russ.).
  6. Zhernovoy A.I., Diyachenko S.V. [Compare of sizes end of magnetic moments nanoparticles of a magnetit in a colloid solution and in a powder, prepared by a chemical sedymentation (short message)]. Nauchnoe Priborostroenie [Scientific Instrumentation], 2016, vol. 26, no. 1, pp. 54—57. Doi: 10.18358/np-26-1-i5457. (In Russ.).
  7. Zhernovoy A.I., Rudakov Yu.R Diyachenko S.V. [NMR method for curie's law compliance in colloid solutions of paramagnetic nanoparticles]. Nauchnoe Priborostroenie [Scientific Instrumentation], 2012, vol. 22, no. 1, pp. 52—54. (In Russ.).
    URL: http://213.170.69.26/en/mag/2012/full1/Art7.pdf
  8. Zhernovoy A.I., Diyachenko S.V. [Determination of the dispersion magnetic moment of the nanoparticles in magnetic fluid]. Nauchnoe Priborostroenie [Scientific Instrumentation], 2015, vol. 25, no. 1, pp. 42—48. (In Russ.).
    URL: http://213.170.69.26/en/mag/2015/abst1.php#abst5
  9. Diyachenko S.V. Razrabotka metoda izmereniya namagnichennosti kolloidnyh rastvorov i poroshkov ferromagnit-nyh nanochastic v stacionarnyh usloviyah. Diss. kand. fiz.-mat. nauk [Development of a method of measurement of magnetization of colloidal solutions and powders of ferromagnetic nanoparticles in stationary conditions. Cand. phis. and mat. sci. diss.]. Saint-Petersburg, 2017. (In Russ.).
  10. Zhernovoi A.I., Komlev V.I., Diyachenko S.V. [Definition of magnetic characteristics of nanoparticles of MgFe2O4 received glycine – a nitrate way]. Zhurnal tekhnicheskoj fiziki [Journal of technical physics], 2016, vol. 86, no. 2, pp. 146—148. (In Russ.).
    URL: http://journals.ioffe.ru/articles/42755
  11. Emel'yanov S.G., Karpova G.V., Paukov V.M., Polunin V.M., Ryapolov P.A. [Estimation of Physical Parameters of Magnetic Nanoparticles]. Akusticheskiy zhurnal [Acoustical Journal], 2010, vol. 56, no. 3, pp. 316—322. (In Russ.).
 

Ya. A. Fofanov1, V. V. Manoilov1,2, I. V. Zarutskiy1,2, B. V. Bardin1

ON THE SIMILARITY OF THE POLARIZATION-OPTICAL RESPONSES OF MAGNETIC NANOFLUIDS.
PART I. APPROXIMATION FOR WEAK FIELDS

"Nauchnoe Priborostroenie", 2018, vol. 28, no. 1, pp. 45—52.
doi: 10.18358/np-28-1-i4552
 

Some features of the weak polarization responses of magnetic nanofluids are investigated. It is shown that magnitude of these responses for concentrations that differ by three or more orders have a similarity depending on the magnetic field. A quantitative evaluation of the similarity of responses is given.
 

Keywords: quantitative polarization-optical analysis, magnetic nanofluids, approximation of experimental data, verification of statistical hypotheses

Author affiliations:

1Institute for Analytical Instrumentation of RAS, Saint-Petersburg, Russia
2ITMO University, Saint-Petersburg, Russia

 
Contacts: Manoylov Vladimir Vladimirovich, manoilov_vv@mail.ru
Article received in edition 28.12.2017
Full text (In Russ.) >>

REFERENCES

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B. P. Sharfarets

ON THE SCATTERING OF SOUND BY AN INELASTIC BALL OF ARBITRARY RADIUS.
THE SCATTERING EFFICIENCY FACTOR

"Nauchnoe Priborostroenie", 2018, vol. 28, no. 1, pp. 53—60.
doi: 10.18358/np-28-1-i5360
 

The scattering of an acoustic wave by a single inelastic liquid ball is considered. To derive the required expressions, we use the mathematical technique that is characteristic of the theory of scattering of particles. Expressions are given for the field and amplitude of scattering of the ball, and also the scatterer integral parameter, adapted to the acoustic case, adopted in optics: the scattering efficiency factor. The results obtained for single inclusion under certain conditions easily extend to ensembles of particles, and the scattering factor can be useful in estimating the total intensity of the scattered field in the presence of a large number of chaotically weighted inclusions in the medium. Examples of calculation of the scattering efficiency factor for specific parameters are given, which are compared with optical analogs. The results obtained can be useful in the theory and practice of radiation pressure of sound on ensembles of particles.
 

Keywords: scattering amplitude, an inelastic ball, cross section of scattering, scattering efficiency factor,
the ensemble of particles

Author affiliations:

Institute for Analytical Instrumentation of RAS, Saint-Petersburg, Russia

 
Contacts: Sharfarets Boris Pinkusovich, sharb@mail.ru
Article received in edition: 5.12.2017
Full text (In Russ.) >>

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V. A. Elokhin1, S. N. Arkhipov1, L. A. Pyankova1, A. V. Petrov2, R. V. Chekhova3, V. M. Pyshniy3

X-RAY DIFFRACTOMETRY IN PHARMACEUTICAL ANALYSIS:
PRACTICES OF USING "DIF RAY" BENCHTOP DIFFRACTOMETERS

"Nauchnoe Priborostroenie", 2018, vol. 28, no. 1, pp. 61—68.
doi: 10.18358/np-28-1-i6168
 

Limits of applicability of the XRD-analysis for control of pharmaceutical production and intermediate products compliance with the factory regulations and for monitoring of mechanocomposite formation with the changed reactionary ability are shown. XRD-analysis allows you to investigated solid-phase reactions, polymorphism, changes of biological activity of substances and medical products. Possibilities of the XRD-analysis are illustrated by the experimental data received by means of desktop X-ray diffractometer "Difray" produced in Russia Federation.
 

Keywords: XRD-analysis, GMP, quality control of pharmaceuticals

Author affiliations:

1Scientific Instruments Inc. , St. Petersburg , Russia
2Pharmsynthez PJSC, St. Petersburg, Russia
3Moscow Technological University, Russia

 
Contacts: Pyankova Lyubov' Alekseevna, lyuba@pyankova.ru
Article received in edition 14.12.2017
Full text (In Russ.) >>

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  12. Obschaya farmakopeynaya stat'ya. Kristallichnost'. OFS.1.1.0018.15. [General pharmakopeyny article. Crystallinity] Ministerstvo zdravoochraneniya RF [Ministry of Health of the Russian Federation]. (In Russ.). URL: http://pharmacopoeia.ru/ofs-1-1-0018-15-kristallichnost/.
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V. G. Gurevich, A. V. Pavlov, I. V.Pavlova

THERMO GRAVIMETRIC DEVICE WITH MULTICAMERA
THERMOSTAT FOR CALIBRATION OF GAS MICROSTREAM SOURCES. PRODUCTIVITY STABILIZATION OF PERMEABLE GAS MICROSTREAM SOURCES

"Nauchnoe Priborostroenie", 2018, vol. 28, no. 1, pp. 69—78.
doi: 10.18358/np-28-1-i6978
 

The construction of thermo gravimetric device with multicamera thermostat is described. The use of continuous-periodical method of gravimetric calibration of gas microstream sources enabled to enhance calibration accuracy and to develop the method of their productivity stabilization.
Preparation method of dynamic gas mixtures with the usage of microstream sources (MS) of aggressive substances is the most perspective from the point of view of long-term reproducibility of the set concentration. The main advantage of MS made of fluorine-containing polymers is their use duration and easy moving.
At the same time long-term productivity decrease of MS limits their usage as reference standards during international checking. Thermo gravimetric device(TGU-2) designed in ''DYNAGAS' company with multicamera thermostat for MS calibration by continuous-periodic way, enabled to develop the method of decrease of long-term productivity change of organic and inorganic substances (SO2 < 0.3 %; NO2 < 1.8 % for a year).
 

Keywords: long-term productivity stabilization of gas microstream sources, thermo gravimetric device with multicamera thermostat

Author affiliations:

DINAGAS Co., Saint-Petersburg, Russia

 
Contacts: Gurevich Vladimir Gerzevich, dinagas@rambler.ru
Article received in edition: 18.12.2017
Full text (In Russ.) >>

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B. S. Slepak, K. B. Slepak

THE INNOVATIVE DIRECTION OF SCIENTIFIC INSTRUMENTATION – MÖSSBAUER SPECTROSCOPY AS A FACTOR OF IMPROVING THE BRANCHES OF THE RUSSIAN ECONOMY.
PART 1. BREAKTHROUGH SCIENTIFIC RESEARCH IN THE FIELD OF MÖSSBAUER SPECTROSCOPY

"Nauchnoe Priborostroenie", 2018, vol. 28, no. 1, pp. 79—92.
doi: 10.18358/np-28-1-i7992
 

Breakthrough scientific research in the field of Mössbauer spectroscopy is described. The mass-produced IAI RAS Mössbauer spectrometers are presented, which largely determine the development of Russian materials science and are used in the development of new materials. A complex of scientific instruments illustrating the development of one of the most promising areas of scientific instrumentation, that is necessary for studying the magnetic and physico-chemical properties of new materials, investigating the high-temperature superconductivity of compounds, ferroelectrics, and multiferroics is demonstrated.
 

Keywords: innovations, import substitution, Mössbauer spectrometer, gamma-resonance spectrum, Doppler energy modulation, gamma optical scheme

Author affiliations:

1Institute for Analytical Instrumentation of RAS, Saint-Petersburg, Russia
2NRC "Kurchatov Institute" – CRISM "Prometey", Russia

 
Contacts: Slepak Boris Semyenovich, slepak@mail. ru
Article received in edition 31.01.2018
Full text (In Eng.) >>

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Ulitsa Ivana Chernykh, 31-33, lit. A, St. Petersburg, Russia, 198095, P.O.B. 140
tel: (812) 3630719, fax: (812) 3630720, mail: iap@ianin.spb.su

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