Variability of climatic characteristics оver the South-East Baltic coastal waters in the early XXI century
... features of hydrometeorological conditions in the southeastern Baltic Sea and their trends assessment for 2005—2019 (climatic half period). The authors used the data from field observations of atmospheric pressure, wind direction and speed, and air temperature from the automatic hydrometeorological station located offshore, as well as the satellite data from the infrared and microwave (radar images) ranges to determine sea ice and sea surface temperature, respectively. The research also reveals ...
Climate change in the mountainous regions of the Republic of Tyva: The case of the Bay-Tayginsk district
The most considerable increase in the temperature of soil surface was observed in the cold period (1,5 °С, a 53,9% rise in temperature), the smallest in August (0,3 °С, 2,1 %), whereas, in May-June, the increase was negative (–1,3 °С, 27,1 %). Major increases in air temperature take ...
The modelling of postmortem heat transfer and estimating the time of death
This article analyses different mathematical models of the process of postmortem heat transfer in an adult cadaver based on postmortem temperature dynamics. A model of heat transfer in a newborn cadaver presented as a finite cylinder is examined in detail. An important factor in constructing a mathematical model of postmortem heat transfer in a newborn aimed at identifying the time of ...
Hysteresis loops for a bulk ferromagnetic by Heisenberg model
... into account, explicit form is obtained by permutations group theory, the division paramagnetic/ferromagnetic is studied. The magnetization curves are built for a given set of parameters, such as exchange integral, number of closest neighbours and temperature. In a special range of the parameters a transition from unique solution of the resulting Heisenberg equation to multi-valued is observed. For this case exemplary hysteresis loops are built. The expression for Curie temperature allows ...
Chlorophyll «a» concentration in the South-Eastern Baltic Sea in summer 2018 (on satellite data)
... summer 2018. The data of the MODIS radiometer installed on Aqua and Terra satellites were used for the analysis. The average concentration of chlorophyll "a" in the warm period of 2018 (May-August) was 3.8 mg/m3 while the average sea surface temperature was 17.7° С. The Maximum concentration of chlorophyll "a" (8.1 mg/m3) was recorded in May. However, the most massive development of phytoplankton occurred in July — the average monthly concentration of chlorophyll "a" ...
The dynamics of air temperature extrema as an indicator of climate warming in the Central Tuvan basin of the Tyva Republic
Climate warming results in an increase of air temperatures extrema. The dynamics of anomalies in air temperature absolute maxima are described through unusual biquadrate polynomials. The minimum peak was observed in 1989—1992, afterwards a steep increase followed. The authors examine the possibility ...
Development of a mathematical model for the process of rocket fuel bubbling with liquid nitrogen
To achieve an optimum temperature of rocket fuel, its negative temperature and the amount of its purification from impurities are necessary. For this purpose, a mathematical model of the temperature dependence inside the bubbler has been developed in this article.
Vybornov ...
The flow of gas in a cylindrical channel at a subsonic speed
... pressure), while the forces of gravity can be neglected. The boundary value problem is solves with the standard numerical method, the Mathcad in particular. The least squares method was used to find the empirical dependence of the heat nitrogen on the temperature. Third order polynomial approximation gives the average deviation from experimental data of less than 0.5 %. The paper also shows that with increase of the wall temperature of channel increases the required pressure at the inlet of the lance ...
About a role of vegetation of deserts of Central Asia in climate change
This article focuses on the temperature of various underlying surfaces (rubble-rock on hamadas, sand on the beds of temporary streams, plants) in the southern steppes of Mongolia. The authors present a comparative analysis of soil and plant temperature and address the issue of the ...
The characteristics of the energy spectrum of mixture ratio and air temperature in the troposphere of the Antarctic
This article analyses the characteristics of the energy spectrum of mixture ratio and air temperature in the troposphere of the Antarctic obtained by Fourier analysis. Selected peaks of spectral density of mixing ratio and air temperature monthly averages are interpreted as annual and semi-annual fluctuations. The spectral density of random ...
New data on air and soil temperature in vegetation communities of the Karakum Desert
This article offers data on the temperature of surface air and soils in the aeration zone. The author comes to the conclusion that the soil temperature in the Karakum desert is favourable for the development of tree and shrubbery species.
1. Гунин П. Д., Дарымов В. Я....
Sea surface temperature determination in the North Atlantic based on planktonic foraminifera with the help of diverse biometric methods
This article presents the results of the reconstruction of surface temperature above the northeast part of the Iceland basin (Northeast Atlantic) for the last 300,000 years with help of the M. S. Barash method, as well as the RAM, MAT and TFT methods on the basis of the planktonic foraminifera data. The M. S. Barash ...
The closed piecewise uniform string revisited
... shell // J. Phys. A: Math. Gen. 2018. Vol. 51. 455001.
22. Bordag M. Entropy in some simple one-dimensional configurations. 2018. ArXiv: 1807.10354quant-ph.
23. Bordag M., Munoz-Castaneda J. M., Santamaría-Sanz L. Free energy and entropy for finite temperature quantum field theory under the influence of periodic backgrounds // Eur. Phys. J. C. 2020. Vol. 80 (3).
24. Brevik I., Sollie R. On the Casimir energy for a 2N-piece relativistic string // J. of Mathematical Physics. 1997. Vol. 38 (6). P. ...
Oscillations, resonances and waves in a non-local medium with sources
... results are set out in the terms of the heat transfer theory. The non-locality of the problem is determined by the value of the fourth spatial derivative. We considered two types of volume energy sources which are alternating with respect to the temperature. For a technical source the derivative is positive, since «higher» temperatures arise from the energy release. For a biological source the source function is negative inclined, because a biological tissue gives off heat in the region ...
Non-contact method for measuring the specific electrical resistance of liquid metals in the high temperature range
... металлов и его промышленное применение. М. ; Л., 1965.
6. Макаренко И. Н., Труханова Л. Н., Филиппов Л. П. Тепловые свойс
Nikishin M. A., Rumyantsev A. V., Kharyukov V. G.
temperature, induction generator, electromagnetic field, skin-layer, electromotive force, specific electric resistance, power
90-96
Multiple RuO2-chip thermometer for applications in 0,02—30 K range
... suggested. Thermometer saturation and thermal resistance of our sensor are measured and compared with a single-chip configuration and commercial Lakeshore ROX-102A thermometer.
1. Yeager C. J., Courts S. S. A Review of Cryogenic Thermometry and Common Temperature Sensors // IEEE sensors journal. 2001. Vol. 1, № 4. P. 352—360.
2. Courts S. S., Krause J. K. A Commercial Ruthenium Oxide Thermometer for Use to 20 Millikelvin, CP985 // Advances in Cryogenic Engineering: Transaction of the Cryogenic ...
Long-term forecast of water surface temperature in the southeastern part of the Pacific Ocean
The article examines the results of use of the physical-statistical method for the forecast of seasonal trend of the sea surface temperature (SST) with the lead time of 8 months and results of statistical method of SST superlong-term forecast, lead time — 1 year. In the first case mean-squared prediction error of SST according to independent data makes 0,5 оС, in the second ...
The ontogenesis of Mysidacea Neomysis integer Leach, 1815 dependent on the water temperature in the Vistula Lagoon of the Baltic Sea
This article considers the impact of water temperature in the Vistula Lagoon of the Baltic Sea on Mysidacea ontogenesis, as well as their maturity rate, female fertility, reproductionrate and average energy cost of reproduction.
1.
Алимов А.
Ф
. Введение в продукционную ...
Temperature evolution of crystal structure of multiferroic Tb0.95Bi0.05MnO3
The temperature evolution of crystal structure of multiferroic Tb0.95Bi0.05MnO3 has been studied by powder neutron diffraction in the temperature range 100—450 K. It is shown that the lattice parameters and volume expansion coefficient demonstrate anomalies ...
Decay of a weak gap and wave propagation in a nonlocal environment with a source
... biological tissue). The wave velocity (subsonic, sonic, supersonic) is determined with respect to the velocity of propagating heat perturbations. We give examples of the exact solving the problem of disintegration of a weak discontinuity in the temperature field. This problem is set as follows. In the initial state the continuous thermal field contains a point of a weak discontinuity; in that point the first coordinate derivative undergoes a first-order rupture. Further the weak discontinuity ...
An assessment of the role of green belts in creating comfortable microclimatic conditions in summer
... area in the left-bank part of the city of Voronezh to perform a simulation of microclimatic conditions in summer. The following parameters were used as background climatic conditions: the day of the summer solstice, cloudless and calm weather, air temperature 25° C. We assessed the level of thermal comfort in the current landscaping situation in the residential area, taking into account proposed climate improvement initiatives, particularly, planting evergreen and deciduous trees. We evaluated ...
The Evolution, or Seasonal and Interannual Variability, of the Diurnal Variation of Hydrometeorological Fields in the Southern Baltic Sea
We present the results of an analysis of field observations of the air temperature Ta, the dew point Td (relative humidity f), the sea-level atmospheric pressure P0, and the wind speed W. The data were obtained by a Mini- KRAMS-4 hydrometeorological facility installed within Russia’s exclusive economic zone in the southeastern ...
Simulating of non-stationary processes in the ionospheric plasma
A model of distribution of concentration, velocities and temperatures of ions along a geomagnetic flux tube is considered. The model also examines the main processes of chemical kinetics, ambipolar diffusion, influence of horizontal neutral wind and plasma heating by superthermal electrons. The article presents ...
Investigation of dependence of temperature coefficient of linear expansion on integrated intensity of the main peak of pyroceramics substrate
... of studies of the parameters of optical components of a glassceramic material CO-115 by X-ray diffractometry. The possibility of technological precision quality control glassceramic parts using X-ray diffraction methods. The direct dependence of the temperature coefficient of linear expansion of the integrated intensity of the X-ray diffraction peak at the glassceramic.
1. Галявов И. Р., Патрикеев А. П., Понин О. В. и др. Интерференционные дилатометры ...
Optimization of the thin film Heusler alloys formation technique by the method of Pulsed laser deposition
... Бучельников В. Д., Такаги Т. и др. Ферромагнетики с помощью формы // Успехи физических наук. 2003. Т. 173, № 6. С. 577—608.
3. Yu B. F., Gao Q., Zhang B. et al. Review on research of room temperature magnetic refrigeration// International Journal of Refrigeration. 2003. № 26. Р. 622—636.
4. GschneidnerJr K. A., Pecharsky V. K., Tsokol A. O. Recent developments in magnetocaloric materials // Rep. Prog. Phys. 2005. № 68. Р. 1479....
Numerical simulation of forming and evolution of solitons in chain of nucleotide couples
The Cauchy’s problem of the induced charge movement along the discrete chain of nucleotide couples in DNA is solved in the frame of Holstein’s model taking account surrounding temperature fluctuations. For the initial conditions chosen specifically the evolution of a special class of solutions of this problem related to the type of soliton is investigated. The existence of solutions in the form of solitary waves in the framework ...
Computer simulation of synthesis processes in NiO—Al system
Features of physical and chemical conversions in the reacting powder system NiO-Al were investigated by computer simulation methods.. Multivariability of the synthesis of nickel aluminides in powder systems with varying degrees of concentration inhomogeneity is taken into account. The estimates of the state parameters of reacting system at all stages of physical and chemical transformations was obtained.
1.
Tatsuya Ohmi.
Reaction mechanism for thermite combustion synthesis of Ni3Al // International...
Three-dimensional computational modelling of water cooling over the coastal slope: a comparison of hydrostatic and non-hydrostatic solutions
This article addresses the structure and dynamics of current and temperature fields in the coastal zone of a large water body generated by seasonal variations of heat-exchange conditions at the water surface. Numerical solutions of three-dimensional hydrostatic and non-hydrostatic models MIKE3-FlowModel in shallow ...
Shifts of adulterations as the result of seasonal horizontal convection under the shelf plate (numerical modeling)
... variations which delays an establishing of a seasonal water-exchange in shallows. Convective exchange flows within the entire shelf region in seasonal circle requires 4—7 weeks to reach a quasisteady state. Formation of a linear portion on the horizontal temperature profile can be used as an indicator of the approaching of the flow to the steady state. Flushing time for the shelf zone under steady-state condition is 30 days and is only slightly influenced by the slope length.
1.
Косарев А....
Modeling of H Thermal Ions Measurements onboard Charged Satellite Taking into Account Anisotropy of Temperature
... ionospheric ions measurements was considered in case of charged satellite. Hyperboloid device characteristics onboard Interball-2 satellite was used for mathematical model of measurements. It was shown that angular ion distribution function changed due to temperature anisotropy and it can be interprets by different ways. Positive satellite potential increases these effects.
1.
Hamelin
M
.,
Bouhram
M
.,
Dubouloz
N
.
et
al
.
Combined effects of satellite and ion detector geometries and potentials ...
The ecological and biological characteristics of plants in the course of forcing
This article analyses the storage conditions for hybrid lily bulbs in the course of forcing. The authors come to the conclusion that taller plants are obtained after a three week storage at a constant low temperature. The time span between planting and flowering is 60—75 days. The optimal temperature for plant storage during forcing rages from 18 to 20 °С.
1.
Интродукция
растений в Главном ботаническом саду ...
Climate Change Impact on the Curonain Lagoon Eutrophication Level
... concentrations, biomass and primary production of phytoplankton in the Curonian Lagoon. The main factors affecting the level of biological production and the trophic status are determined by the comparison of hydrological and chemical indicators. Water temperature is a key environmental factor that regulates the phytoplankton production and abundance in the Curonian Lagoon. The greater seasonal rise in water temperatures in 1990-2000, presumably, a consequence of the climate change, alongside with other ...
On Estimation of Rainfall Variations over the European Part of Russia
... measurements // Global Precipitations and Climate Change / M. Bubois, F. Désalmand (eds.). NATO
ASI
Series
I.
№
26.
Berlin
, 1994. P. 173—186.
15.
Vose R.
S.
[et al.]. The Global Historical Climatology Network: Long-Term
Monthly Temperature, Precipitation, Sea Level Pressure, and Station Pressure Data //
ORNL/CDIAC-53, NDP-041. Oak
Ridge
, 1992.
Kryshnyakova O., Malinin V.
rainfall, air temperature, positive trend.
64-69
10.5922/2223-2095-2010-1-9
Study of the physical and geographical conditions of the territory of the Kemerovo region — Kuzbass for the purpose of reclamation works
... climate. The main factors contributing to the climate include atmospheric circulation, relief, and vegetation. The combination of these factors shapes the climatic characteristics of the region. Overall, there is a general pattern in the distribution of temperature and humidity. In the mountains of the Kuznetsk Alatau and Mountain Shoria, it is humid, but there is a deficit of warmth. The most favorable conditions have developed at the foot of the windward slopes of the Kuznetsk Alatau, where the soil ...
The spread of the COVID-19 infection in Russia’s Baltic macro-region: internal differences
... it is imperative that research not only considers the economic and geographical factors of a region, but also takes into account its physical and environmental conditions. Evidence from Vicent Rios and Lisa Gianmoena’s work on Italy suggests that temperature and humidity are crucial factors in the spread of the virus, alongside social ties and contacts [9]. Thus, a comprehensive approach would involve examining the influence of the Baltic Sea, which extends to varying degrees across several regions,...
Basic thermodynamic parameters in a non-ideal gas and the speed of sound based on various equations of state
... quantities and the adiabatic equation for a gas described by the equation of state of the most general form. Explicit formulas are given for the most known equations of state. As an example, the nature of the behavior of the speed of sound as a function of temperature and pressure for the Van der Waals gas is investigated and the obtained results are compared with experimental data. The analysis showed that the obtained formulas describe the speed of sound much better in a wide range of pressures and ...
Automated production line software
... transfer the line to domestic components and introduce devices for fine lubrication of metal tiles to improve the quality of products and reduce the number of rejects. A parametric model of the hydroelectric station was built, a mathematical model of the temperature change inside the hydroelectric station was developed, the type of transfer function was determined, a block diagram of the control algorithm for a metal tile production line was developed, software was developed for the equipment of ...
Possible manifestations of the quantum Hawking radiation effect in nonlinear optics
... for self-induced transparency. In nonlinear optics Hawking radiation can exist. This effect in particular leads to decreasing of soliton energy with time.
Astashenok A. V., Teplyakov A. S.
nonlinear optics, black holes, solitons, Hawking temperature, sine-Gordon equation, self-induced transparency
103-114
Polarization transfer in the NV– — P1 system in diamond
... transfer in the NV– — P1 system in diamond in the vicinity of LAC is studied. A method based on a complete set of commuting observables was used. It was shown that with optical pumping of the NV– — P1 system in a field of B ≈ 511.5 G at room temperature, polarization can be transferred efficiently from the electron spin of the NV center to the electron spin of the P1-center.
1. Дирак П. А. М. Принципы квантовой механики. М., 1979.
2. Ivanov A. A., Ivanov ...
Reactions of dibenzothiazine amination of quinone derivatives on a «copper film»
... 353. P. 1—57.
5. Salavati-Niasari M., Davar F., Mir N. Synthesis and characterization of metallic copper nanoparticles via thermal decomposition // Polyhedron. 2008. Vol. 27, iss. 17. P. 3514—3518.
6. Pantidos N., Edmundson M., Horsfall L. Room temperature bioproduction, isolation and anti-microbial properties of stable elemental copper nanoparticles // New Biotechnology. 2018. Vol. 40, part B. 17. P. 275—281.
7. Naeemah al-lami. New Imidazo[2,1-b]naphtha[2,1-d][1,3]thiazole Derivatives: ...
The current state of the climate system of the Kaliningrad region and global warming
... objects of different scales, particularly, the Arctic, which serves as an indicator of global processes taking place across the planet. I track long-term fluctuations in the climatic parameters of the Kaliningrad region. Further, I estimate the rate of temperature change in Kaliningrad and other locations that have weather stations and establish the cause-and-effect relationship in the behavior of various indicators.
1. Алексеев Г. В., Радионов В. Ф., Александров ...
Program realization of calculation method of radio signal attenuation in atmospheric gases for satellite communications
... Weintraub S. The constants in the equation for atmospheric refractive index at radio frequencies // Proc. I. R. E. 1953. Vol. 41. P. 1035—1037.
9. Cadeddu M. P., Payne V. H., Clough S. A. et al. Effect of the Oxygen Line-Parameter Modeling on Temperature and Humidity Retrievals from Ground-Based Microwave Radiometers // IEEE Trans. Geosci. Remote Sens. 2007. Vol. 45, iss. 7. P. 2216—2223.
Zhaharov A. I., Kuvalkin E. S.
attenuation in atmospheric gases, satellite communication, radio ...
Ergonomics and the translation process
... process can be regarded as a complex system involving many agents, organizational factors such as workflow, communication processes, project management, job security, and translator status. Environmental factors in the physical sense (e. g. lighting, temperature, air quality, space) as well in the broader sense of the role of translation and translators in the economy and society as a whole can also influence the process. Viewing translation from an ergonomic perspective can provide an appropriate ...
The Flow of Gas with Dispersed Particles in a Cylindrical Channel at a Subsonic Speed
... problem in the Mathcad environment. We present the results of a study of changes in gas parameters along the channel at different gas flow rates. The graphs show dimensional variables. We consider the distributed density of the dispersed phase, the temperatures of the carrier and dispersed phases, the Mach number M, the Reynolds number Re, the Nusselt number Nu, and the Stokes number Stk.
1. Великанов Н. Л., Наумов В. А., Корягин С. И. Течение газа в цилиндрическом ...
Modeling of the cathode thermal conditions
... calculations, the cathode thermal model and operating performances were assessed, the most efficient required cathode life time characteristics were selected, which are related to the cathode heater power and operating time with provision of emitter optimal temperature in the automatic mode and welded joints leak-tightness. It was determined that the minimum heater power for cathode start-up is 60 W, the time to prepare for a start-up is 140 sec. To improve the cathode stable operation it is recommended ...
An influence of initial irregularities geometry on developments of the Rayleigh-Taylor instability in the equatorial F-layer of the ionosphere
... особенности // Геомагнетизм и аэрономия. 1972. Т. 12, № 2. С. 333—335.
8. Hedin A. E., Salah J. E., Evans J. V. et al. A global thermospheric model based on mass spectrometer and incoherent scatter data MSIS 1. N2 density and temperature // J. Geophys. Res. 1977. Vol. 82, N. A1. P. 2139–2147.
9. Hedin A. E., Reber C. A., Newton G. P. et al. A global thermospheric model based on mass spectrometer and incoherent scatter data MSIS 2. Composition // Ibid. P. 2148–2156.
10....
Side resonances in diamond: influence of isotopic substitution of carbon
.... The base of this method is the using of entangled spin states.
1. Doherty M. W., Dolde F., Fedder H. et al. Theory of the ground spin state of the NV- center in diamond // Phys. Rev. 2012. Vol. B 85.
2. Gaebel T., Domhan M., Popa I. et al. Room temperature coherent control of coupled single spin in solid // Nat. Phys. 2006. Vol. 2. P. 408.
3. Simanovskaya M., Jensen K., Jarmolova A. et al. Sidebands in optically detected magnetic resonance signals of nitrogen vacancy centers in diamond // Phys....
A model of mid-scale irregularities of the low-latitude Earth ionosphere : evaluations of a non-linear correction method for the Z-scheme
... SAMI3 simulation of plasmasphere refilling // Geophys. res. lett. 2013. Vol. 40. P. 2484—488.
9. Hedin A. E., Salah J. E., Evans J. V. et al. A global thermospheric model based on mass spectrometer and incoherent scatter data MSIS 1. N2 density and temperature // Ibid. 1977. Vol. 82, № A1. P. 2139—2147.
10. Кольцова Э. М., Федосова Н. А., Балашкина Ю. А. Новый метод разностной аппроксимации решения для задач механики ...
Use of the Z-scheme in an Rayleigh-Taylor instability model
... ионосферной плазмы // Ионосферные исследования. 1983. № 33. С. 5—44.
6. Hedin A. E., Salah J. E., Evans J. V. et al. A global thermospheric model based on mass spectrometer and incoherent scatter data MSIS 1. N2 density and temperature // J. Geophys. Res. 1977. Vol. 82, № A1. P. 2139—2147.
7. Кольцова Э. М., Федосова Н. А., Балашкина Ю. А. Новый метод разностной аппроксимации решения для задач ...
Thermal calculation of the anode of the stationary plasma engine
... braising in order to obtain the thermal picture of the item design.
1. Алямовский А. Руководство по эксплуатации SolidWorks/ Flow Simulation.СПб., 2012.
2. Bundesmann C., Tartz M., Neumann H. et al. In-situ temperature, erosion, beam and plasma characterisation of a SPT-100D EM1 with an advanced electric propulsion diagnostic system // IEPS-2009-141, 31st International Electric Propulsion Conferense. Michigan, 2009.
Chubov P., Rumyantsev A., Kharjukov V....