Перегляд за автором "Medvedev, D.V."

Сортувати за: Порядок: Результатів:

  • Analysis of uranium mobility and concentration process in objects of environment and patients’ kidney stones in Kharkiv region 
    Dikiy, N.P.; Lisovoy, V.N.; Bereznyak, E.P.; Kolupayev, S.M.; Lyashko, Yu.V.; Medvedeva, E.P.; Medvedev, D.V.; Hodyreva, Y.S. (Вопросы атомной науки и техники, 2021)
    The specific activity of ²³⁵U and content of native uranium for the Kharkiv region in drinking water, soil, roots, the leaf of hydrophyte “Pistia stratiotes” and the samples of kidney stones obtained from patients with ...
  • Antineoplastic therapy by radioactive cisplatin in experiment 
    Dikiy, N.P.; Dovbnya, A.N.; Lyashko, Y.V.; Medvedeva, E.P.; Medvedev, D.V.; Uvarov, V.L. (Вопросы атомной науки и техники, 2007)
    The method of ¹⁹⁵mPt production on linear electron accelerators and cyclotron of NSC KIPT are described. The method of ¹⁹⁵mPt separation from the irradiated samples are developed. The methods of cisplatin synthesis with ...
  • Application of gamma activation analysis for research of Cs and I diffusion into a glassceramic matrix 
    Dikiy, N.P.; Gabelkov, S.V.; Dovbnya, A.N.; Lyashko, Yu.V.; Medvedeva, E.P.; Saenko, S.Yu.; Surkov, A.E.; Tarasov, V.V.; Uvarov, V.L.; Fedorets, I.D.; Holomeev, G.A.; Borovlev, V.I.; Zabolotny, V.D.; Medvedev, D.V. (Вопросы атомной науки и техники, 2006)
    Nuclear reactions ¹³³Cs(γ,n)¹³²Cs, ¹²⁷I(γ,n)¹²⁶I were utilized for research of Cs and I diffusion in glassceramic matrices. The glassceramic matrix was manufactured with the help of hot isostatic pressing at 910°C and ...
  • Cesium, strontium and sodium diffusion in magnesium kalium phosphates system 
    Dikiy, N.P.; Dovbnya, A.N.; Lyashko, Yu.V.; Medvedev, D.V.; Medvedeva, E.P.; Repikhov, O.A.; Saenko, S.Y.; Shkuropatenko, V.A.; Tarasov, R.V.; Fedorets, I.D.; Khlapova, N.P. (Вопросы атомной науки и техники, 2014)
    Nuclear-physical methods have been used for determination of diffusion coefficient of Cs, Na, Sr and Ga in samples on the basis of Ceramicrete which contained simulators of a liquid radioactive waste of "Hanford-1", KW and ...
  • Comparative analysis of pulsed and steady radiation influence on dynamic of extractives 
    Dikiy, N.P.; Dovbnya, A.N.; Kutovoy, V.A.; Kutovoy, S.V.; Medvedeva, E.P.; Medvedev, D.V.; Borisenko, V.N. (Вопросы атомной науки и техники, 2006)
    An electron accelerator has been applied to radiation technology for extraction of grape polyphenols after the grape being preliminary dried in vacuum. It is shown that the extraction process is more effective while the ...
  • Development of a nuclear diagnosing proton beam for a collective ion accelerator 
    Dikiy, N.P.; Medvedev, D.V.; Onishchenko, I.N.; Pushkarev, S.S. (Вопросы атомной науки и техники, 2006)
    A nuclear method for determination of energy and intensity of a proton beam is proposed to use for investigation of collective ion acceleration by space charge waves arisen in an intense relativistic electron beam (REB) ...
  • Estimation of the absorbed doses of synthesized cisplatin with ¹⁹⁵mPt in various organs of animals 
    Dikiy, N.P.; Dovbnya, A.N.; Lyashko, Y.V.; Medvedeva, E.P.; Medvedev, D.V.; Uvarov, V.L.; Gritsan, L.D.; Onishchenko, N.I. (Вопросы атомной науки и техники, 2008)
    195mPt has been obtained in reaction ¹⁹⁷Au(g,np)¹⁹⁵mPt on the electron linear accelerator with energy 40 MeV and current 10 mA. To produce ¹⁹⁵mPt from a target of gold the extractor such as Kuchera-Shtoly was needed. The ...
  • Experimental investigations of interaction of supercritical electron beams with plasma 
    Chupikov, P.T.; Medvedev, D.V.; Onishchenko, I.N.; Panasenko, B.D.; Prokopenko, Yu.V.; Pushkarev, S.S.; Faehl, R.J.; Yegorov, A.M. (Вопросы атомной науки и техники, 2002)
    The first section of the collective ions acceleration based on simultaneous temporal and spatial modulation of relativistic electron beam (REB) was studied experimentally. The virtual cathode was originated in the ...
  • Formation of periodical magnetic fields by sequence of rings with different electric and magnetic properties 
    Kopiychenko, D.Yu.; Onishchenko, I.N.; Sotnikov, G.V.; Pushkarev, S.S.; Prokopenko, Yu.V.; Chupikov, P.T.; Medvedev, D.V. (Вопросы атомной науки и техники, 2004)
    The electrodynamics analysis of topography of magnetic fields originating in spatially periodic system is carried out. The system under investigation is the solenoid inside which rings made from materials differ in electric ...
  • Gamma-activation method for the element analysis of agricultural products after vacuum drying 
    Dikiy, N.P.; Kutovoy, V.A.; Kutovoy, S.V.; Lyachko, Yu.V.; Medvedeva, E.P.; Medvedev, D.V.; Nikolaenko, A.A.; Onishchenko, N.I.; Uvarov, V.L.; Fedorets, I.D.; Grytsan, L.D. (Вопросы атомной науки и техники, 2004)
    Development of the combined technologies of drying allows one to speed up the process of moisture moving away from the dried material and to decrease the energy consumption per the production unit. The composition of macro- ...
  • Imbalance of essential and toxic elements in the biosamples of patients with surface gastritis with different secretory activity 
    Dikiy, N.P.; Layshko, Yu.V.; Medvedeva, E.P.; Medvedev, D.V.; Parhomenko, T.А.; Parhomenko, K.Yu. (Problems of Atomic Science and Technology, 2022)
    The results of the application of various nuclear physics methods (characteristic X-ray radiation, gamma-activation analysis, and X-ray fluorescence analysis) to the study of the imbalance of certain elements in various ...
  • Influence of high-energy electrons irradiation on nanoceramics properties of zirconia 
    Aizatskyi, M.I.; Dikiy, N.P.; Dovbnya, A.N.; Fedorets, I.D.; Kushnir, V.A.; Lyashko, Yu.V.; Medvedev, D.V.; Mytrochenko, V.V.; Onishchenko, I.N.; Perezhogin, S.A.; Pelichatyi, N.M.; Danilenko, I.A.; Konstantinova, T.E. (Вопросы атомной науки и техники, 2013)
    Radiation defects in nanoceramics zirconia were investigated after electron irradiation with energy 41…89 MeV up to doze 2.28…5.7·10¹⁴ electrons/cm². Radioactive isotopes ⁸⁷,⁸⁸Y, ⁸⁸,⁸⁹,⁹⁵Zr, ⁹⁵Nb, ¹⁷⁵Hf are registered after ...
  • Influence of ionizing radiation on the elemental content and structure of natural minerals 
    Dikiy, N.P.; Bereznyak, E.P.; Layshko, Yu.V.; Medvedeva, E.P.; Medvedev, D.V. (Problems of Atomic Science and Technology, 2022)
    The granites of the Ukrainian crystalline shield and the Donetsk-Dnieper hollow of the Pre-Cambrian basement, discovered at a depth of 840…900 to 3420 m were irradiated on a KUT-1 linear electron accelerator with the ...
  • Ion exchange in photoactivated inorganic matters 
    Dikiy, N.P.; Dovbnya, A.N.; Lyashko, Yu.V.; Medvedev, D.V.; Medvedeva, E.P.; Parhomenko, Yu.G.; Uvarov, V.L.; Fedorets, I.D. (Вопросы атомной науки и техники, 2017)
    The effects of monovalent and bivalent impurities on the diffusive mobility sodium, caesium and strontium in magnesium potassium phosphate hexahydrate and clinoptilolite were analysed. It was determined that ratio of ...
  • Ions acceleration in a temporary and spatially modulated intense REB 
    Chupikov, P.T.; Medvedev, D.V.; Onishchenko, I.N.; Panasenko, B.D.; Prokopenko, Yu.V.; Pushkarev, S.S.; Yegorov, A.M. (Вопросы атомной науки и техники, 2004)
    The conception, proposed by Lymar, Khizhnyak, and Belikov, to use collective electromagnetic fields of space charge excited in high-current relativistic electron beam (REB), modulated in time and space, have been ...
  • Low-frequency REB modulation and acceleration of ions in a supercritical mode during plasma injection 
    Chupikov, P.T.; Medvedev, D.V.; Onishchenko, I.N.; Panasenko, B.D.; Prokopenko, Yu.V.; Pushkarev, S.S.; Faehl, R.J.; Yegorov, A.M. (Вопросы атомной науки и техники, 2004)
    Low-frequency modulation of a high-current relativistic electron beam (REB) and acceleration of ions in the first section of a collective ion accelerator was studied experimentally. Low frequency modulation of supercritical ...
  • Measurement of distribution function of REB, used in collective ion accelerator 
    Chupikov, P.T.; Medvedev, D.V.; Onishchenko, I.N.; Panasenko, B.D.; Prokopenko, Yu.V.; Pushkarev, S.S. (Вопросы атомной науки и техники, 2004)
    The parameters of the intense relativistic electron beam (REB), being a base element of the ion accelerator concept, were measured at the exit of the first section of a collective ion accelerator. The experimental studies ...
  • Mechanisms of morphology death of tumor cell by effect non-radioactive and radioactive ¹⁹⁵ᵐPt-cisplatin 
    Dikiy, N.P.; Lyashko, Yu.V.; Medvedeva, E.P.; Medvedev, D.V. (Вопросы атомной науки и техники, 2021)
    The photonuclear technology of preparation radioactive cisplatin ¹⁹⁵ᵐPt was been developed by the bremsstrahlung from the electron accelerators. In the novel technology, the production of ¹⁹⁵ᵐPt from reaction ¹⁹⁷Au(γ,np)¹⁹⁵ᵐPt ...
  • Men-made radionuclides in lichens and mosses of the Kharkiv region 
    Dikiy, N.P.; Lyashko, Yu.V.; Medvedeva, E.P.; Katalevskaya, D.S.; Medvedev, D.V.; Parkhomenko, Yu.G.; Yatsuk, M.A.; Fedorets, I.D. (Вопросы атомной науки и техники, 2016)
    Проведено вимірювання питомої активності радіонуклідів у ґрунті, моховинні, лишайниках, листяних деревах та хвойній фітомасі. Вивчені особливості надходження и накопичення радіонуклідів ¹³⁷Cs, ⁴⁰К, ²²⁶Ra та інших у ...
  • Nanostructural deactivating agents selective to caesium 
    Dikiy, N.P.; Dovbnya, A.N.; Lyashko, Yu.V.; Medvedeva, E.P.; Medvedev, D.V.; Uvarov, V.L.; Fedorets, I.D.; Khlapova, N.P.; Bakay, D.S. (Вопросы атомной науки и техники, 2011)
    The chemical reactivity of nanostructural clinoptilolite and γ-hematite which have highly selective for ¹³²Cs sorption from polyethylene surface and for liquid environments are studied. There are different components besides ...