http://repository.enu.kz/handle/enu/10600 Sat, 04 Apr 2026 06:09:46 GMT 2026-04-04T06:09:46Z http://repository.enu.kz/handle/enu/10654 Setup for the study of the paramagnetic resonance of neutrons of the first kind Tsulaia, M.I.; Berikov, D.B.; Salamatin, I.M.; Mareev, Yu.D.; Kopatch, Yu.N.; Zhumadilov, K.Sh. The experimental setup KOLKHIDA has been designed to study the interactions of polarized neutrons with polarized nuclei, in particular to study the neutron nuclear precession (nuclear pseudomagnetism) and also for studying magnetic properties of crystals. The investigation has been performed at the Frank Laboratory of Neutron Physics, JINR. Mon, 01 Jan 2018 00:00:00 GMT http://repository.enu.kz/handle/enu/10654 2018-01-01T00:00:00Z http://repository.enu.kz/handle/enu/10653 Ecologically safe experimental purpose application of microwaves in the treatment of chronic neurological disorders: optimization and risks Arkhypova, K.; Nosatov, A.; Nurushev, M.; Krasov, P.; Fisun, A.; Nurusheva, A. Current paper describes the experimental dual-purpose application of microwaves in a controlled clinical trial on optimizing therapy for chronic neurological disorders. As a part of integrated treatment, low-intensity microwave-assisted blood modification has been used. It represents a physiotherapeutic method based on the autologous blood transfusion (self-blood treatment) after the short-term exposure to microwaves ( λ = 7.2 mm). Because of beneficial clinical impact of the microwave autohemotherapy previously observed, we aimed to find a possible way to track a manifestation of nonthermal microwave effects. For this purpose, we have applied a microwave single-frequency ( λ = 7.6 mm) dielectrometry technique as a tool for blood sensing. Also, we used the osmotic fragility test to detect the membrane-receptor activity level using patients’ red blood cells before and after the course of therapy. Our preliminary results have shown an enhancement of blood cell reactivity and a clearly defined tendency to normalizing parameters under study in those patients who received the integrated treatment. By analyzing the data obtained by different methods, we have revealed that characteristics are well correlated. Mon, 01 Jan 2018 00:00:00 GMT http://repository.enu.kz/handle/enu/10653 2018-01-01T00:00:00Z http://repository.enu.kz/handle/enu/10652 Decreasing of the concentration quenching of fluorescent dye in a solution by introducing it to nanoparticles of silicon dioxide Mantel, A.I.; Yensebayeva, A.E.; Smatov, S.B.; Irgibayeva, I.S. The technique of introduction a fluorescent dye Tris(bipyridine)ruthenium (II) chloride into nanoparticles of silicon dioxide in isopropyl alcohol was tested. The preparation of nanoparticles was carried out by means of the Stober method. The optimal reaction conditions were determined. It was found out that the penetration of a dye into silicon dioxide nanoparticles reduced the effect of concentration quenching of the dye and made it possible to achieve an increase in fluorescence intensity in the solution more than twofold. An attempt was made to functionalize the obtained particles by introducing amino groups onto the particle surface. Fused silver nanoparticles were seeded with silver nanoparticles. Mon, 01 Jan 2018 00:00:00 GMT http://repository.enu.kz/handle/enu/10652 2018-01-01T00:00:00Z http://repository.enu.kz/handle/enu/10651 Investigation of the stability of nanostructures to degradation Petrov, A.V.; Kenzhina, I.E.; Kozlovskiy, A.L.; Kadyrzhanov, K.K. The paper presents the dependence of the degradation degree in various aggressive media and time in a medium. The greatest deterioration in crystallographic characteristics of nanostructures in corrosive media is observed on the day 10th , which is due to partial destruction of the crystal structure as a result of oxidation processes. Also, an increase in the oxygen concentration in the structure leads to an increase in disorder regions, amorphization, and subsequent destruction of samples. Mon, 01 Jan 2018 00:00:00 GMT http://repository.enu.kz/handle/enu/10651 2018-01-01T00:00:00Z