bluuebunny/crossref_metadata_2025_split huggingface dataset:
Adversarial super-resolution of climatological wind and solar data
Authors: Stengel Karen , Glaws Andrew , Hettinger Dylan , King Ryan N. 
Published: July 2020

SignificanceGlobal climate simulations are typically unable to resolve wind and solar data at a resolution sufficient for renewable energy resource assessment in different climate scenarios. We introduce an adversarial deep learning approach to super resolve wind and solar outputs from global climate models by up to 50×. The inferred high-resolution fields are robust, physically consistent with the properties of atmospheric turbulence and solar irradiation, and can be adapted to domains from regional to global scales. This resolution enhancement enables critical localized assessments of the potential long-term economic viability of renewable energy resources.
The ecology of human–carnivore coexistence
Authors: Lamb Clayton T. , Ford Adam T. , McLellan Bruce N. , Proctor Michael F. , Mowat Garth , Ciarniello Lana , Nielsen Scott E. , Boutin Stan 
Published: July 2020

Significance
The persistence of large carnivores in human-dominated landscapes will become increasingly challenging as the human footprint expands. Here, we bring together long-term demographic and behavioral data on one of the worlds’ most conflict-prone species, the brown bear, to quantify the mechanisms facilitating human–carnivore coexistence. We found that human-dominated landscapes are highly lethal, especially to young bears, until they learn to adapt to people. As bears age, they avoid times when people are most active but do not strongly avoid where people live. To sustain human–carnivore coexistence under high rates of mortality requires the influx of animals from areas with low human presence (i.e., demographic rescue). Paradoxically, our work demonstrates that connectivity leads to both coexistence and conflict.
Information design for bowel cancer detection
Authors: Lonsdale Maria dos Santos , Ni Li-Chin , Gu Chenyi , Twiddy Maureen 
Published: July 2020

Abstract
Colorectal cancer is one of the most commonly occurring cancers in the world, and colonoscopy is the most sensitive procedure to detect it. Colonoscopy success depends on the quality of bowel preparation, yet the way information is designed and communicated to patients does not meet their needs. By considering how information is conveyed through three different outputs (booklet, motion graphics and app), this study investigates the advantages of using visualised information when communicating bowel preparation instructions for colonoscopy screening. A user-centered multiple-methods approach was followed and results show how user performance benefits from the use of information visualisation. A set of guidelines is given to inform the development of bowel preparation instructions and other similar health related communications.
XXXIV International Conference on Interaction of Intense Energy Fluxes with Matter
Authors: Fortov V E , Khishchenko K V , Karamurzov B S , Sultanov V G , Kadatskiy M A 
Published: July 2020

Abstract
This paper is a preface to the proceedings of the XXXIV International Conference on Interaction of Intense Energy Fluxes with Matter, which was held at the Cheget pension in the village of Terskol, in the settlement of Elbrus, in the Kabardino-Balkar Republic of the Russian Federation, from March 1 to 6, 2019.
Electron–ion energy exchange in simple metals in Ziman approach
Authors: Petrov Yu V , Inogamov N A , Migdal K P , Mokshin A V , Galimzyanov B N 
Published: July 2020

Abstract
The coefficient of the electron–ion energy exchange in liquid aluminum is calculated within the framework of Ziman approach for electron kinetic coefficients. Calculations are made to study dependence of the electron–ion heat transfer coefficient on the electron and ion temperatures.
Properties of laser beam passed through cluster plasma studied with diffraction pattern method
Authors: Makarov S S , Pikuz T A , Buzmakov A V , Hayashi Y , Fukuda Y , Kando M , Daido I , Kotaki H , Lu X , Jie F , Alkhimova M A , Ryazantsev S N , Skobelev I Yu , Pikuz S A 
Published: July 2020

Abstract
The diffraction method is used to study the properties of laser radiation interacting with a gas-cluster plasma. Based on the simulation of propagation a laser beam with a wavelength 800 nm through a hexagon Cu-mesh and subsequently compared with the obtained experimental diffraction pattern, the contribution of the second harmonic to the laser radiation was considered. The capability of this method to reveal the spectral composition of laser radiation is discussed. Also, the dependence of the visibility of the diffraction pattern on the intensity of the laser beam is considered. Besides, the contribution of x-ray radiation generated from the laser-cluster interaction into the observed diffraction pattern signal was estimated.
High-intensity THz pulse generation by TW laser radiation in ionized gas and nonlinear crystals
Authors: Nazarov M M , Mitrofanov A V , Solyankin P M , Margushev Z Ch , Chashin M V , Shkurinov A P , Sidorov-Biryukov D A , Panchenko V Ya 
Published: July 2020

Abstract
Intense electromagnetic fields can be obtained now in THz frequency range. THz pulses with electric field intensity above 1 MV/cm are now requested for strong-field applications like particle acceleration, short electron bunches measurements, controlling the state of the matter. The advantage of a THz pulse in comparison with the visible frequency range is the almost non-oscillating field that interacts with charged particles more efficiently. The advantage over a direct field is the ability to remotely focus this radiation in space and in time. Except for the huge free-electron lasers facilities, the only way to get THz pulses of MV/cm intensity is the conversion of high-power femtosecond laser pulses. We compare two ways of generating intense THz pulses using the radiation of TW and GW laser systems operating at 800 nm. They are two-color filamentation in gas and optical rectification in nonlinear crystals. The prospects for scaling of THz generation methods for a petawatt laser are discussed.
Nonlinear conditions for instability of the free surface of a conducting liquid in an external electric field in a confined axisymmetric geometry
Authors: Zubareva O V , Zubarev N M , Bobrov K E 
Published: July 2020

Abstract
The behavior of the free surface of a perfectly conducting liquid in an external uniform electric field is considered in the framework of the Hamiltonian formalism for the case of bounded axisymmetric geometry of the system (the fluid is bounded by a cylindrical rigid wall). Taking into account the influence of quadratic nonlinearities, we derive an amplitude equation which describes the evolution of the boundary. Using this equation, we find the condition for the hard excitation of boundary instability that leads to an explosive growth of surface perturbations. The differences in the description of the dynamics of axisymmetric perturbations of the boundary from the cases of plane, square, and hexagonal symmetries of the problem are discussed.
Effect of temperature process at chicken litter torrefaction on properties of products obtained
Authors: Pudova Ya D , Larina O M , Zaichenko V M 
Published: July 2020

Abstract
In connection with the situation with the environment and energy in the world, it is necessary to study the possibility of using biological waste as an energy resource. The method of thermochemical treatment of organic waste is investigated in this paper. The chicken litter in the form of pellets is used as a raw material. The experimental studies of the torrefaction temperature influence on the thermotechnical characteristics of chicken litter and the yield of products were conducted in lab-scale system. The five temperature regimes of torrefaction (220, 240, 260, 280, and 300 °C) with holding time determined with thermogravimetric analysis are studied. The thermotechnical characteristics of the initial and torrefied material as elemental composition, the lower calorific value, hygroscopicity limit, and bulk density are determined. The properties of non-condensable gases (specific volume yield, chemical composition, and calorific value) are investigated. The material balance for each of the temperature regimes is calculated. The conclusion about the optimum temperature regime for torrefaction of chicken litter based on the results of experimental studies is made.
Elastoplastic deformation processes in materials with cubic symmetry of properties
Authors: Krivosheina M N 
Published: July 2020

Abstract
Some results of studies of the processes of elastoplastic deformation in a material with a cubic symmetry of elastic and plastic properties are presented. Cases of shock loading of a cylinder from a single crystal alloy on a rigid target (Taylor test) along three different directions ([111], [001] and [011]) are considered. These directions are characterized by the fact that along them propagation of longitudinal and transverse waves with different speeds is possible. Using the example of solving the Taylor test problem, it is shown that the differences in elastic properties along the [011] directions in cubic crystals determine elastoplastic deformations.
Scalability of increase in spall threshold in the presence of cylindrical protrusions on metals surface
Authors: Ebel A A , Mayer A E 
Published: July 2020

Abstract
The article analyzes the extent to which the previously detected effect of increase in spall threshold due to nanorelief on the surface can be scaled to large dimensions of the target, the impactor and the relief elements. Earlier, it was shown on the basis of molecular dynamics simulation that the presence of a relief can significantly increase the spall threshold due to plastic deformation in the surface layer of metal and energy dissipation of the reflected shock wave. To study the scalability of this effect on the case of macroscopic targets, and not only on nanoscale systems, an analytical estimation is constructed for decrease in the shock amplitude wave due to plastic dissipation during flattening of cylindrical protrusions on the surface. On the basis of this estimation, it is shown that an increase in the splitting threshold of the rear surface of metals with relief is scalable.
Electrodes erosion influence on the interior ballistics of the electrothermal accelerator of macrobodies
Authors: Vorobiev A A , Yanevsky V D , Chichaeva O V , Filimonova V A 
Published: July 2020

Abstract
The previously developed mathematical model for macrobody ballistics inside an electrothermal accelerator was modified. The model can be used to predict the projectile velocity for given values of the mass and size of the projectile, the electrodynamic parameters of the capacitive energy storage, and accelerator parameters. The problem of determining the projectile velocity was solved in a hydrodynamic formulation by numerical integration of the equations of motion, the energy conservation equation, and the caloric equation of state. In the case of neglecting the dynamically changing friction coefficient, the calculation results differ considerably from the experimental data, but the model qualitatively describes the physical processes of interior ballistics of the electrothermal accelerator. Electrodes erosion influence was shown.
Numerical simulation of hemispherical hydrogen–air flame propagation with heat losses
Authors: Mikushkin A Yu , Volodin V V , Golub V V , Gavrikov A I , Petukhov V A 
Published: July 2020

Abstract
The article presents numerical simulation of the propagation of hydrogen–air flame in adiabatic conditions and with the heat absorbtion on the wall. The results of experiments in a cylindrical shell of 4.5 m3 are compared with the results of numerical simulation. The quantitative agreement between the experimental and numerical results is achieved. It is shown that the numerical model of the combustion with the heat losses under the conditions of the experiment may account the heat losses as an integral effect of the heat absorbtion.
Detonation properties of tetranitromethane–methanol mixture
Authors: Mochalova V M , Utkin A V , Rykova V E , Koldunov S A 
Published: July 2020

Abstract
An experimental study of the reaction zone structure and stability of detonation waves was performed for tetranitromethane–methanol (TNM–M) mixture using a velocity interferometer system for any reflector (VISAR). At the near stoichiometric concentration of methanol, it was observed that the amplitude of Von Neumann spike decreases significantly, whereas the detonation parameters increase. The instability of detonation waves in TNM–M mixture was shown, both with respect to one-dimensional longitudinal perturbations and to the curvature of the front leading to the formation of the cellular structure. The dependence of detonation velocity of TNM–M on the diluent concentration and limits of detonation propagation were found.
Monomolecular decomposition of C3F7I and CF3I: Theory meets experiment
Authors: Bystrov N S , Emelianov A V , Eremin A V , Loukhovitski B I , Sharipov A S , Yatsenko P I 
Published: July 2020

Abstract
For the first time, the rate constant of the thermal monomolecular decomposition of n-C3F7I in Ar was measured directly using the technique of atomic resonance absorption spectroscopy on a resonant line of iodine atom. Experiments were conducted behind the incident and reflected shock waves in a broad range of thermodynamic parameters (T = 800–1200 K and P = 0.6–8.3 bar). Experimental data were found to conform reasonably to the results of the Rice–Ramsperger–Kassel–Marcus theory master equation modeling based on the results of quantum chemical calculations. The obtained low- and high-pressure limiting rate constants for n-C3F7I and CF3I dissociation in Ar were reported. Third body efficiencies for Kr were also evaluated.
Damping properties of a two-phase mixture of transformer oil with gas bubbles
Authors: Gadzhiev M Kh , Tyuftyaev A S , Demirov N A , Akimov P L 
Published: July 2020

Abstract
In recent years, gas–liquid media are of interest due to their damping properties, which may be sufficient to prevent the mechanical destruction of the oil-filled equipment in consequence of electrical breakdown. For this purpose, an experimental installation was created, where the classical method of electric explosion of a wire is used to study the damping properties of a gas–liquid mixture. Microbubbles with a diameter of 1 mm and 0.5 mm were generated with a tangential air supply in a narrowing part of the Venturi tube or using a Laskin nozzle, respectively. Studies have shown that when the oil is aerated with 1 mm bubbles, final waves amplitude, decreases almost by 5 times, and when gassing with 0.5 mm bubbles the amplitude, decreases by more than 10 times. The attenuation of the amplitude of the pressure wave by a factor of the Euler number e in pure oil occurs in ≈ 7 ms, the bubbles with a diameter of ≈ 1 mm lead to an attenuation in ≈ 5 ms, and the bubbles with diameter of ≈ 0.5 mm in ≈ 2 ms.
Vacancions in the two-dimensional Wigner crystal
Authors: Bisti V E 
Published: July 2020

Abstract
From a new point of view, the recombination of two-dimensional electrons enclosed in a MgZnO/ZnO heterojunction with localized holes in the valence band is considered. It is suggested to consider quasi-holes in the two-dimensional electron system as quasiparticles in the Wigner crystal. The quasiparticles corresponding to electrons removed from the Wigner crystal are vacancions. Because of quantum tunneling effect, they are not localized. The vacancion energies E(k) form a band of width D which is proportional to the vacancy tunneling probability. The width D corresponds to the photoluminescence band of the two-dimensional electron system. The shape of the photoluminescence band of the Wigner crystal is considered within the tight-binding approximation for dispersion E(k) and compared with the experimental results.
The wide-range model of shell effects in hot plasma with semiclassical approximation for bound electrons
Authors: Dyachkov S A , Minakov D V , Levashov P R 
Published: July 2020

Abstract
The state-of-the-art density functional theory (DFT) methods provide high quality data about materials properties at extremes. The cost for this is the days of modern supercomputers operation to obtain a set of particular points on a phase diagram. Moreover, the low density region is usually unreachable for these methods due to convergence issues. We demonstrate that an adequate wide-range model of electron subsystem may be constructed using the simple Thomas–Fermi approach corrected by introducing semiclassical bound states instead of continuous ones. The obtained thermodynamic properties are compared to Saha and Kohn–Sham DFT data with good agreement thus covering the region between low and normal densities of hot plasma.
One-dimensional continuum model of two-phase flows in porous media
Authors: Zakharov S A , Pisarev V V , Chudanov V V 
Published: July 2020

Abstract
We present analytical and numerical description of two-phase flows in a porous medium for one-dimensional case. This research is aimed at modeling of natural gas condensate flows at hydrocarbon reservoir conditions. The model is component-scalable, uses generalized cubic equation of state and assumes equal pressures in coexisting phases. It can be used for miscible and immiscible fluid in a unified way. First results for binary mixture flows of alkanes are provided including self-oscillatory regime.
S- and p-polarized reflectivities of strongly correlated plasma
Authors: Zaporozhets Yu B , Mintsev V B , Reinholz H , Röpke G 
Published: July 2020

Abstract
An analysis of the response of a dense plasma to electromagnetic waves of moderate intensity can be used as a tool to study the validity of physical models describing the behavior of matter in extreme conditions. Within this work, the new experimental data are presented on oblique incidence of polarized electromagnetic wave. The study of polarized reflectivity properties of nonideal xenon plasma was accomplished using laser light at νlas = 2.83 × 1014 s−1. The measurements of polarized reflectivity coefficients of explosively driven dense plasmas have been carried out at incident angles up to θ = 70° for plasma density ρ = 1.8 g/cm3. The simple model of the ionization kinetics of the plasma transition region is considered.
Localization of active particles in chain structures in a direct current discharge under external influence
Authors: Kononov E A , Vasiliev M M , Petrov O F 
Published: July 2020

Abstract
We present the results of the analysis of the trajectories, dynamic entropy, and root-mean-square displacement of moving copper particles in a cluster of chain structures when exposed to laser radiation. We have revealed that the dynamics of the particle motion in the cluster corresponds to three modes: motion in a localized area, Brownian motion, and combined directional chaotic motion. The results of the analysis of linear displacement along and across the direction of motion of dust particles at various values of the laser radiation power are presented. It has been shown experimentally that copper particles are active Brownian particles and their activity grows with increasing laser radiation power, leading to a structural phase transition with the exchange of chain fragments within the cluster.
Plasmas and dusty plasmas at temperatures of liquid helium
Authors: Boltnev R E , Vasiliev M M , Petrov O F 
Published: July 2020

Abstract
Recent studies of dusty plasma structures formed by polydispersed CeO2 particles in a dc glow discharge at a temperature T > 1.6 K were shown to be the first experiments on dusty plasma in an exotic dark glow discharge mode. The properties of cryogenic helium plasmas at T ~ 1 K are summarized and discussed.
Anharmonic oscillations of the single dust particle trapped in a standing striation
Authors: Kartasheva A A , Golubovskii Yu B , Karasev V Yu 
Published: July 2020

Abstract
The nonlinear features of the vibrational motion of a single dust particle trapped in a standing strip are investigated. The excitation of the nonlinear oscillations with the large amplitude of the order of 1.5 mm is due to the periodic movement of the standing striation caused by the square-wave modulation of the discharge current. The frequency responses are investigated depending on value of the modulation depth. The anharmonic effects of the dust particle oscillations such as parametric instabilities and hysteresis are obtained. The theory of the anharmonic oscillator provides a good quantitative description of the experimental data. The values of the thresholds of excitation of parametric instabilities, the anharmonic coefficients and the critical values of the oscillation amplitude for the hysteresis are calculated. The potential energy curve of the single dust particle trapped in the striation is calculated using the values of anharmonic coefficients.
The origin of plasma jets generated in Z-pinch discharges
Authors: Vikhrev V V , Baronova E O 
Published: July 2020

Abstract
The results of modeling in the framework of magnetic hydrodynamics (MHD) for the development of a plasma jet in Z-pinches are presented. It has been shown that plasma jet origin is associated with the development of MHD instability m = 0, but not with the conical current sheath structure. MHD modeling is also carried out for θ-pinch systems where generation of plasma jets is much less effective. The corresponding analysis is presented.
Factors Affecting the Occurrence of Suspected Contact Dermatitis in the Traditional Fishery Processing Area (PHPT) of Muara Angke
Authors: Nawangsih Frida Ayu , Nugrohowati Nunuk , Harfiani Erna 
Published: July 2020

Abstract
Contact dermatitis is considered trivial for some people. There are many environmental factors could be the main factors causing contact dermatitis on salted-fish processor in Pengolahan Hasil Perikanan (PHPT) or Fishery Processing Area of Muara Angke such as water, temperature, fish, and humidity. These were due to the geographical location of the coastal determine the environmental factors which related to the contact dermatitis suspected on salted-fish processor in the PHPT Muara Angke area. The study was analytic observational with cross sectional design, with subjects were 112 samples. Results showed that 53,6% of salted-fish processor were suspected contact dermatitis. The suspected contact dermatitis increased by poor length of contact (OR= 9.42, 95% CI= 2.91 to 30.53, p=0,000), poor frequency of contact (OR= 4.70, 95% CI= 1.10 to 20.20, p=0,000), and bad temperature (OR= 3.74, 95% CI= 1.34 to 10.45, p=0,003). The length of contact can makes the lack of permeability of the skin, so the material of irritant can infiltrate properly. To prevent contact dermatitis the distribution of clean water must be comprehensive and do as the standards. The building of the processing room has to protect the worker from the heat temperature. Personal hygiene and personal protective must be increase to protect the worker from disease and to keep the quality of the product.