Table 1– Experimental characteristics and cross sections of the formation of resonant γ-quanta in the 7Li(α,γ)11B reaction. The structural suppression of the α-decay from the (4+, 0) state in the 10В core is determined by the fact that the main component of the wave function of the 10В core with the Young scheme {442}, which gives 70% of the contribution to the total function {442}13F [ 1], does not contribute to the Sα-spectroscopic factor for the transition to the ground state of the 6Li nucleus, the main component of which has the form {42}13S [1] .
СТЕПЕННЫЕ РЕШЕНИЯ МОДЕЛИ F(G)-ГРАВИТАЦИИ С ЭЛЕКТРОМАГНИТНЫМ И СКАЛЯРНЫМ ПОЛЕМ
Степенные решения модели f(G)-гравитации с электромагнитным и скалярным полем
NEC, WEC, SEC және DEC энергетикалық күйлерін қарастырғанда, NEC, WEC және DEC шарттары екі үлгіде де орындалатыны анықталды, бірақ SEC энергетикалық күйі орындалмайды.
Введение
Действие и уравнения движения
Модель 1. Масштабный фактор со степенной зависимостью от времени
Сравнение результатов двух моделей
Обсуждение
Неравенство 𝜌𝜌𝜌𝜌 + 𝑝𝑝𝑝𝑝 ≥ 0, являющееся первым условием в (26-28)
Неравенство 𝜌𝜌𝜌𝜌 + 3𝑝𝑝𝑝𝑝 ≥ 0, являющееся вторым условием для SEC
Рисунок 4 – Энергетические состояния NEC, WEC и SEC и их соответствие первому неравенству, описанному в (26-28), где DP1(t) и DP2(t) – значения суммы плотностей энергии.
Заключение
Благодарности
Extended Bose-Einstein condensate dark matter in viscous Gauss-Bonnet gravity [Электр.ресурс]: see pdf.
ОЦЕНКА ПАРАМЕТРОВ ВСЕЛЕННОЙ,
Оценка параметров Вселенной, исходя из связи инертной и гравитационной масс
Методика исследования
Выводы
The virial theorem and the kinetic energy of particles of a macroscopic system in the general field concept.
КОНДЕНСИРЛЕНГЕН КҮЙ ФИЗИКАСЫ ЖӘНЕ МАТЕРИАЛТАНУ ПРОБЛЕМАЛАРЫ
НАНОҒЫЛЫМ
CONDENSED MATTER PHYSICS AND MATERIALS SCIENCE PROBLEMS
NANOSCIENCE
ФИЗИКА КОНДЕНСИРОВАННОГО СОСТОЯ- НИЯ И ПРОБЛЕМЫ МАТЕРИАЛОВЕДЕНИЯ
НАНОНАУКА
Д.А. Муратов
ОПРЕДЕЛЕНИЕ СВОЙСТВ ПАРАМАГНИТНЫХ ЦЕНТРОВ НИТРИДА КРЕМНИЯ ПРИ РАЗЛИЧНЫХ УСЛОВИЯХ
ТЕРМИЧЕСКОЙ ОБРАБОТКИ
Ар ортасында 800°C температурада ұзақ пешті жасыту үшінші және төртінші марганец компоненттері арасындағы сигнал параметрлерін өзгертпейді, бірақ әлсіз өрістердегі сигнал азаяды. Ar ортасында 1100 °C термиялық өңдеу үшінші және төртінші марганец компоненттері арасындағы сигналды түрлендіреді және әлсіз өрістердегі сигналды қалпына келтіреді.
Метод
Результаты
Спектр ЭПР в развертке 150000 mT
Типичные парамагнитные центры нитрида кремния
Модель излучательных переходов
Origin of Visible Photoluminescence from Si-rich and N-rich Silicon Nitride Films //Thin Solid Films. Quantum confinement effect of silicon nanocrystals grown in situ in silicon nitride films //Appl. Analytical electron microscopy of silicon nitride nanostructures synthesized from the vapor phase //Journal of Nanotechnology.
Nature of the Si and N dangling bonds in silicon nitride //Journal of Non-Crystalline Solids.
STUDY OF CHANGES IN THE MECHANICAL AND THERMAL CONDUCTIVE PROPERTIES
OF ALN CERAMICS EXPOSED TO HEAVY ION IRRADIATION
Study of changes in mechanical and thermal conductivity properties of AlN ceramics exposed to strong ion irradiation.
Introduction
Simulations of radiation damage by Ar8+, Kr15+, and Xe22+ heavy ions with energies of 70, 150, and 230 MeV, respectively, were performed at the DC-60 heavy ion accelerator (Nur-Sultan, Kazakhstan), located at the Astana base. branch of the Institute of Nuclear Physics of the Ministry of Energy of the Republic of Kazakhstan. The temperature of the samples throughout the irradiation process was maintained in the range of 30-50°C using a special water-cooled holder. The control of the radiation temperature was necessary to avoid the processes of thermal overheating of the samples and partial annealing of the defects caused by the radiation in the structure.
The microhardness of the surface layer was determined by 25 consecutive measurements of different parts of the damaged surface and subsequent determination of the standard deviation of the microhardness value.
Results and discussion
This leads to the fact that previously isolated point defects formed during irradiation can interact when the defective areas overlap, and in this case the effect of their mutual destruction is offset by the formation of complex defects in the form of a cluster defect. The result of such overlaps is the accumulation of the defective fraction in the structure of the damaged layer, the swelling and deformation of the crystal lattice due to the expulsion of atoms from the lattice sites, as well as their subsequent migration and the formation of vacancies. . In this case, part of the damaged volume can be pushed out of the internal damaged area onto the surface in the form of hills or bubbles, the appearance of which leads to the fragility of the surface layer and a decrease in its strength.
The analysis of the obtained dependences of the change in the degree of softening shows the reverse trend of changes in the microhardness value and reflects the degree of degradation of the strength characteristics of ceramics.
The most pronounced changes in thermal conductivity coefficient are observed for ceramic samples irradiated with Хе22+ heavy ions, for which the change in thermal conductivity coefficient depending on irradiation fluence is exponential and reaches a maximum loss of 13.8% at an irradiation fluence of 1cm2015. , which exceed the permitted limits. Such a behavior of the change in the thermal conductivity coefficient as well as the dependence of the change in thermal conductivity properties on radiation fluence as well as the ion types indicate that the main mechanism affecting the change in thermal conductivity properties, in addition to deformation contribution to structural changes, is the anisotropy of electron density. As shown above, a change in the energy and type of incident ions leads to large energy losses during elastic and inelastic interactions, as well as an increase in the diameters of damaged regions [21–23].
In the case of irradiation with heavy Xe22+ ions, the diameters of the damaged zones are more than 20 nm, which, at high radiation fluences, leads to the overlapping of the defect regions and the formation of an anisotropic change in the electron density , with the formation of regions with a depleted electron density.
Conclusion
At the same time, the dominance of electron energy loss of incident ions, which leads to large changes in.
Funding
Fast Heavy Ion Effects in III-V Nitrides //Nuclear Engineering Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. Toulemonde, et al., Nuclear Instruments and Methods in Physics Research, Section B, Beam Interactions with Materials and Atoms. Sina, et al., Nuclear Instruments and Methods in Physics Research, Section B, Beam Interactions with Materials and Atoms.
Skuratov, et al., Nuclear Instruments and Methods in Physics Research Section B, Beam Interactions with Materials and Atoms.
НЕРАЗРУШАЮЩИЕ ИССЛЕДОВАНИЯ
Неразрушающие исследования внутренней структуры бетона разных марок
Объект исследования
Внешний вид образцов для исследования
Габариты исследуемых образцов
Метод исследования
Схема метода нейтронной радиографии
Результаты и обсуждение
Визуализация скорости распространения воды
Tanaka, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Monteiro, Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Shaimerdenov, Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 982 (2020).
Warren, Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Related Equipment.
ЖЫЛУ ФИЗИКАСЫ ЖӘНЕ ТЕОРИЯЛЫҚ ЖЫЛУ ТЕХНИКАСЫ
THERMOPHYSICS AND THEORETICAL HEAT ENGINEERING
ТЕПЛОФИЗИКА И ТЕОРЕТИЧЕСКАЯ ТЕПЛОТЕХНИКА
ЖИДКОСТНЫЕ СИСТЕМЫ ОХЛАЖДЕНИЯ
Жидкостные системы охлаждения индивидуальных криотерапевтических установок
Маңызды практикалық артықшылығы - осының арқасында IWBC құрылғылары 1 кВт-тан аспайтын электр энергиясын тұтынады және үй желісіне қосылуы мүмкін, сондай-ақ IWBC құрылғыларының мобильді нұсқаларын жасап, пайдалана алады. WBC тобының бөлімшелері туралы жарнамаларда мұндай құрылғыларды өндірушілер ЛН құны 100 кг/сағ аспайды деп мәлімдейді, WBC сағатына 50 адам қабылдайтынын ескере отырып, бір пациентке 2 кг-нан аспайтын LN жұмсалады. Іс жүзінде криоагенттің көп учаскелік қондырғылардағы құны WBC аймағына түсетін жылу ағындарына сәйкес келмейді, сондықтан олардағы ауа температурасы тұрақсыз және процедура кезінде 50-60 К жоғарылайды.
WBC приобрел особое значение как эффективное средство профилактики и лечения COVID-19, а также реабилитации пациентов, перенесших это заболевание.
Методика
Принципиальная схема индивидуальной криосауны [2]
Схема охлаждения индивидуальной криокапсулы
LN f T = x = f T (9) Выбор температуры на входе в лечебную кабину TR зависит от величины допустимого перегрева газа по высоте кабины:. В таких условиях для покрытия стандартной тепловой нагрузки на систему охлаждения потребуется подача в кабину ТР охлаждающей смеси с расходом gM = 0,67 кг/с. При запуске криосауны объем кабины ТР заполняется парами азота; продолжительность фазы наполнения не более 20 с.
Важно отметить, что именно компания Linde Gas в 90-х годах ХХ века провела кампанию по переходу на системы WBC с рабочей температурой 170 К.
Effects of whole body cryotherapy on recovery after damaging hamstring exercises: a crossover study //Scandinavian Journal of Medicine & Science in Sports. The effects of a single exposure to whole-body cryotherapy on the physiological, performance and perceptual responses of professional academy football players after repetitive sprint exercises //J Strength Cond Res. Mathematical modeling Non-stationary heat exchange of whole body object cryotherapy // 2019 International Russian Automation Conference (RusAutoCon).
Pakhomov, Mathematical Modeling Non-Stationary Heat Exchange of Object Whole- Body Cryotherapy, 2019 International Russian Automation Conference (RusAutoCon.
ИССЛЕДОВАНИЕ ДИНАМИКИ ИЗМЕНЕНИЯ ТЕМПЕРАТУРЫ УНИВЕРСАЛЬНОЙ КРИОГЕННОЙ ПОВЕРХНОСТИ
Исследование динамики изменения температуры универсальной криогенной поверхности с помощью метода конечных элементов
Эксперимент, методика и материалы Для решения вычислительного эксперимента
Типичная кривая кипения [23]
График зависимости средней температуры от времени
Effect of flow direction with respect to gravity and a new correlation set //International Journal of Heat and Mass Transfer. Mass flow effect, equilibrium quality and inlet subcooling //International Journal of Heat and Mass Transfer. A simple differential method for the lattice Boltzmann algorithm for simulating conjugate heat transfer //International Journal of Heat and Mass Transfer.
Numerical study of transient conjugate heat transfer in cryo-supersonic air quenching based on the Mach pressure-based method //International Journal of Heat and Mass Transfer.
INVESTIGATION OF THE DROPLET DISPERSION INFLUENCE ON THE ATOMIZATION OF LIQUID FUEL PROCESSES
Investigation of the droplet dispersion influence on the atomization of liquid fuel processes in view of large-scale structures formation
These measures allow fossil fuels to be part of the solution, rather than remaining part of the solution. Fossil fuels today account for 80% of global primary electricity demand; the energy system supplies about two-thirds of the world's CO2 emissions [4]. The decomposition process of fuel intensification associated with increased pressure moves the flame front away from the fuel surface.
Flame front can decrease the distance, increase the distance or remain the same distance from the surface of the liquid fuel.
![Figure 1 shows necessity of liquid and gaseous fuel in any spheres all over the World [5].](https://thumb-ap.123doks.com/thumbv2/azdokorg/10586321.0/77.892.471.800.326.577/figure-shows-necessity-liquid-gaseous-fuel-spheres-world.webp)
Mathematical model and methods Breakup model
Increase in pressure intensifies combustion processes in the gas phase, but decreases intensity degradation of the liquid phase, which controls the combustion. In these three situations, the opposite influence of the pressure and the breakdown of the liquid phase can occur. Finally, the flux concept F comes into play due to the surface tensions on the fluid body or from heat flux through surfaces.
The term ∇ u : τ represents the double inner product of the gradient u with the Cauchy stress tensor.
3pIT
A general conservation equation governing the motion of a fluid in the Eulerian framework, based on the concepts of divergence theorem and Reynolds transport theorem, was proposed in comparison. In the equation above, a rate of change of physical quantity (X) is balanced by the production term P, supply term S and flux term F. Likewise, the conservation equations for a specific physical quantity can be easily explained by the equations of motion of a fluid with density ( . ρ ), velocity ( u ), and internal energy ( e. Here q is the specific heat flux and can be explained by the simple Fourier law of heat transfer.
The pressure in the combustion chamber is 80 bar, injection speed of liquid fuel equal to 250 m/s.
Results and Discussion
Figure 7 – Temperature distribution during fuel combustion (octane) over the combustion chamber height depending on the initial radius of the droplets. Thus, the combustion temperature of the liquid fuel increases as the initial drop radius increases. Figure 10 – Dependence of the octane particle size on the initial radius of its injected droplets.
Figure 11 – Dependence of liquid fuel combustion temperature on the initial radius of the injected droplets.
Acknowledgements
The obtained results are of fundamental and practical importance and can be used to develop the theory of combustion of gaseous and liquid fuels. Investigation of the influence of different Reynolds numbers on the processes of atomization and combustion of liquid fuel // Bulgarian Chemical Communications. 3D modeling of thermochemically activated fuel combustion // News of the National Academy of Sciences of the Republic of Kazakhstan.
On the effect of temperature boundary conditions on walls for heat and mass transfer processes // International Journal of Mechanics.
БЕЙСЫЗЫҚ ФИЗИКА
РАДИОФИЗИЗИКА
NONLINEAR PHYSICS
RADIOPHYSICS
НЕЛИНЕЙНАЯ ФИЗИКА
РАДИОФИЗИКА
ИОНОСФЕРНЫЕ БУРИ НАД КАЗАХСТАНОМ ПО ДАННЫМ ОБ ИНТЕГРАЛЬНОМ
ЭЛЕКТРОННОМ СОДЕРЖАНИИ
Ионосферные бури над Казахстаном по данным об интегральном электронном содержании
Категории ионосферных бурь (определяется значениями δfoF2 и продолжительностью бури) Характеристика
Условия появления ионосферных бурь (по данным об ИЭС) над Казахстанским регионом
Disturbances of the thermosphere-ionosphere-plasmasphere system and the auroral electrojet at 30°E longitude during St. Global Ionospheric and Thermospheric Effects of the June 2015 Geomagnetic Disturbances: Multi-instrumental Observations and Modeling // JGR Space Physics. Investigation of equatorial and low-latitude electrodynamic and ionospheric disturbances during the 22-23 geomagnetic storm. June 2015 using ground-based and spaceborne techniques // JGR Space Physics.
Cilliers, Classical and Recent Aspects of Power System Optimization: Chapter 16 - Geomagnetically Induced Currents: A Threat to Modern Power Systems.–Academic Press.
МАЗМҰНЫ – CONTENTS – СОДЕРЖАНИЕ
Nonlinear physics
Нелинейная физика
![Figure 4 [8] shows the full cross-sections of the radiation capture reaction as a function of the energy of the incident α -particles.](https://thumb-ap.123doks.com/thumbv2/azdokorg/10586321.0/10.892.104.431.502.791/figure-sections-radiation-capture-reaction-function-incident-particles.webp)
