bluuebunny/crossref_metadata_2025_split huggingface dataset:
Modeling the salt-dust aerosols distribution in the atmosphere, taking into account the soil erosion
Authors: Ravshanov N , Ravshanov Z , Bolnokin V E 
Published: May 2020

Abstract
In the general case, when modelling the process of air pollution dispersion, it is necessary to take into account factors associated with the interaction of air mass with the underlying earth surface or wind erosion. The main purpose of this work is to study the factors affecting the amount of particulates carried upward from the soil into the air due to wind erosion. The study of this aspect is very relevant for the analysis of environmental situation in the Aral region of Uzbekistan. The major share of harmful substances emission in Aral Sea region is undertaken by dust, salts and toxic chemicals blown up from dried bottom of the Aral Sea. Thus, in mathematical modelling of atmospheric dispersion process, it is necessary to take into account the physic and mechanical properties of the particles and basic forces acting on them. In the paper there are presented certain numerical calculations for studying the process of soil erosion depending on the air mass velocity of the atmosphere, the size and density of particles, and the acting forces. The basic forces that play a significant role in the process of soil erosion were determined by carried numerical calculations.
Model for calculating the reaction rates of nitrogen oxide formation in a diesel cylinder
Authors: Lopatin O P 
Published: May 2020

AbstractFor the purpose of considering the activated complex, the uncertainty relation from quantum mechanics is used. It is assumed that at the peak of the parabola, the complex corresponds to a volume with finite dimensions. In classical theories, such assumptions exist, and since the barrier has a flat shape, the accepted assumptions do not change the overall picture of the main chemical reactions of combustion. It follows that you can use a statistical average from a set of complexes, which will allow you to get the same result. Statically, the reaction rates are considered with the assumption that the initial substances and activated complexes are found in the equilibrium state. The presented model makes it possible to calculate the values of the pre-exponential multiplier of chemical reactions and, consequently, the absolute rate of formation of nitrogen oxides (NOx) in the diesel cylinder.
Study of thermal conductivity temperature dependence for amorphous materials based on Al2O3 and SiO2 oxides
Authors: Maryushin L A , Tikhonova D A , Kiryanov I I 
Published: May 2020

Abstract
The purpose of this paper is to study the process of thermal energy transfer in materials with pronounced crystalline structure and to analyze thermophysical heat transfer mechanisms in Al2O3, SiO2 oxides (fused quartz, quartz glass). The dependence of thermal conductivity versus temperature for materials in which heat transfer is determined by conduction electrons is graphically shown.
Predicting the reliability of auxiliary equipment of heat sources
Authors: Bonnet V V , Loginov A Yu , Prudnikov A Yu , Bonnet Y V , Bonnet M V 
Published: May 2020

Abstract
Service equipment of the heat sources taken by supervision consisted of centrifugal water pumps, blast air fans and exhausters. Robust and fail safe operation of the heat sources is impossible without the effective operation of this service equipment. Malfunctions of the service equipment resгде in disruption of heat supply, losses and emergencies. Consequently, to provide a robust operation of the equipment there were found the impending failure, classified and described. The main type of the electric engines used for the electric drive of the working organs of the service equipment are asynchronous electric drives with a short-circuited rotor which is mostly exposed to the external influence. In this work there are collected and analyzed reasons of fault inception of the service equipment as well as methods to define the complex parameter of technical state is developed and its functional dependence on failure interval is set. The acquired data may be used to define the readiness of the equipment for operation to the coming period as well as plan its maintenance operation and overhaul.
Development of resource-saving technology for solid waste disposal of industrial gas dehumidifiers of petrochemical enterprises in the process of producing urethane rubbers
Authors: Kozhevnikova I V , Safiullina T R , Zenitova L A , Vdovina S V , Nurieva E N 
Published: May 2020

Abstract
Currently, environmental issues are receiving much attention. Considering the fact that several of the largest oil refining and petrochemical enterprises in Russia are concentrated in the Republic of Tatarstan, the improvement of the environmental situation near industrial territories is very important. Previously, the authors of the article investigated the possibility of using wastes of industrial gas dehumidifiers (silica gel and aluminum oxide) as fillers for urethane rubbers of the SKU-OM and SKU-PFL types, both cold and hot cured. Studies have shown that the introduction of silica gel in the injection composition of SKU-OM and SKU-PFL is possible up to 20% of the mass without deterioration of physical and mechanical properties, and spent alumina can be introduced into SKU-OM up to 50% of the mass, which is absolutely not typical for this type of rubber. Thus, the strength properties remain at the level of unfilled analogues, the oil and gas resistance of the compositions increase. Based on these studies, the authors proposed three flowcharts of technological processes, the first of which is a generalized scheme for converting silica gel and alumina waste into secondary material resources, or, basically, into fillers for polymer and rubber mixtures. The second and third schemes are improved flowcharts for the production of injection molded urethane rubbers hot cured (scheme 2) and cold cured (scheme 3). Both schemes can be implemented at enterprises for the production of injection molding polyurethanes, as well as at oil refineries. Economic calculations showed a reduction in the cost of the final polyurethane product by 29% in the case of used silica gel, and by 9% when filling polyurethane with aluminum oxide waste.
The effect of the use of natural gas on the emissivity of a flame in a cylinder of an automobile diesel engine
Authors: Rossokhin A V , Anfilatov A A 
Published: May 2020

Abstract
The issues and features of heat transfer in the cylinder of a high-speed diesel engine of 4CHN 11,0/12,5 dimension when working on diesel and gas engine fuel (gas-diesel process) are considered. The spectral and integrated radiation characteristics of soot particles in the cylinder of the 4CHN 11,0/12,5 gas diesel engine were calculated depending on the angle of rotation of the crankshaft.
Impact of methanol use in a diesel engine on workflow performance
Authors: Anfilatov A A , Chuvashev A N 
Published: May 2020

AbstractWorld experience in solving environmental problems associated with the use of diesel engines as propulsion systems allows us to conclude that the most acceptable solution to the problem of reducing exhaust gas toxicity and improving environmental performance is the use of alternative fuels. Gaseous hydrocarbon fuels (natural gas and propane-butane), which are environmentally friendly motor fuels, are most widely used in road transport. Among liquid alternative fuels, fuel ethanol and methanol are the most common. Vyatka state agricultural Academy has been conducting research on converting internal combustion engines to synthetic motor fuel for many years. The article presents the results of using methanol as a motor fuel when it is fed directly into the diesel combustion chamber through a multi-jet nozzle. Indicator diagrams obtained in the maximum torque mode are analyzed.
Improvements in industrial energy rationing methods
Authors: Rakhmonov I U , Reymov K M , Dustova S H 
Published: May 2020

Abstract
The article analyzes the existing methods of rationing the electrical consumption of industrial enterprises. The results of the analysis of the state of normalization of electric consumption in the ferrous metallurgy industry are given. The developed multilevel structure of normalization of electric consumption by results of research which gives prospects of definition of possibility of energy saving on considered object is described.
Energy-economic analysis of the applicability of supercritical fluid extraction of ethylene oxide
Authors: Akhmetlatyypova D D 
Published: May 2020

Abstract
A new scheme has been developed for the separation of ethylene oxide from its aqueous solution using supercritical carbon dioxide and further concentration of the product. An energy and economic comparative analysis of new methods of the separation of ethylene oxide from an aqueous solution and its further concentration with the traditional scheme has been carried out. This analysis showed that a scheme with supercritical fluid extraction with carbon dioxide and the addition of propane into the scheme is energetically and economically advantageous.
Study of velocity characteristics of section based on data acquired by seismic technique of Parametric Deconvolution of Reflection
Authors: Ahmedov T R , Amirov A M 
Published: May 2020

Abstract
The paper is devoted to more accurate design of velocity model of geological section on the basis of Parametric Deconvolution of Reflections (PRO) technique. CDP technique applied widely does not solve too many problems without resolution of which the petroleum industry in the country will definitely be behind the leading petroleum industries worldwide. The reason of such low economic indexes of geological survey consists in no improvement of resolution ability of CDP technique in Azerbaijan for over 30 years. One of the most complex and important tasks of seismic survey in areas with complicated setting in Azerbaijan consists in evaluation of velocity characteristics of geological environment which is crucial for development of adequate geological model. The paper gives the examples of practical use of PRO method applied to real seismic data from the worldwide practice. Results of PRO velocities calibration with the average velocities of vertical seismic profiling has been shown: the curves almost coincide. It has been noted that detailed development of velocity model by use of PRO allows to successfully resolve kinematic, as well as dynamic problem: velocity anomalies (low interval velocities) are stipulated by gas deposit presence. Results of PRO application in one of the areas of Absheron oil and gas region are displayed. Study of PRO velocities allowed to outline low velocity areas related to overpressure zones and possible presence of oil and gas reservoirs. Recently drilled well recovered oil and gas horizon in Miocene deposits.
Complex permittivity of organic solvents at microwave frequencies
Authors: Zarubina A Yu , Kibets S G , Politiko A A , Semenenko V N , Baskov K M , Chistyaev V A 
Published: May 2020

Abstract
The complex electrical permittivity of industrially produced organic solvents of several classes with different abilities to form hydrogen bonds, such as ketones (acetone, 2-butanone), alcohols (ethyl alcohol, isopropyl alcohol), acetic esters (ethyl acetate, propyl acetate, butyl acetate), hydrocarbon solvents (toluene, ortho-xylene, heptane, solvent Nefras), chlorine-containing solvents (carbon tetrachloride, tetrachlorethylene), as well as a mixed solvent based on acetone, butyl acetate and ortho-xylene of brand R-5A, were studied. The frequency dependences of permittivity were measured by the coaxial probe method in a wide frequency range from 200 MHz to 20 GHz. It is shown that the chemical nature of solvents has a significant effect on their permittivity. It was found that solvents with weak hydrogen bonds (hydrocarbons and chlorine-containing solvents) have low values of the permittivity (not higher than 2.6) and negligible dielectric losses. Solvents with moderately strong bonds (acetic acid esters and ketones) have high values of permittivity with pronounced frequency dispersion, noticeable dielectric losses and Debye relaxation frequency above 20 GHz. Strong hydrogen bonded solvents (alcohols) are characterized by high values of the permittivity with significant frequency dispersion and Debye relaxation frequency below 1.5 GHz.
The effect of operational modes of diesel engines to emissions of nitrogen oxides
Authors: Lopatin O P 
Published: May 2020

AbstractThe levels of nitrogen oxides (NOx) emissions are presented depending on the operating modes of diesel engines, which determine on the one hand the existence of high temperatures in the cycle, at which there is intense nitrogen oxidation, and on the other hand, depending on the value of the excess air coefficient α, the excess of free oxygen for nitrogen oxidation.
Digital control circuit of a pulse voltage stabilizer implemented by Field-Programmable Gate Array
Authors: Titovskii S N , Titovskaya T S , Titovskaya N V 
Published: May 2020

Abstract
The article describes the digital control circuit of a pulse voltage stabilizer using a kind of integral-differential control law. The article discusses the implementation of such a control circuit on the Cyclone II EP2C20 FPGA in the form of a Leon3 IP processor core, which contains, in addition to standard configuration nodes, a specially designed timer-counter. The test results of a stabilizer prototype with the described control circuit are presented.
Control unit for a high voltage installation of X-ray microtomograph
Authors: Trubitsyn A A , Polonsky B A , Grachev E Yu , Davydov G V , Agaltsov K D 
Published: May 2020

Abstract
A control and indication unit for current operating parameters has been developed for the Spellman XRF-160 high-voltage generator with an output voltage of up to 160 kV, used as part of a high-voltage X-ray microtomograph installation. Thanks to the use of isolating amplifiers in the unit, galvanic separation of the circuits for the formation of control and indication signals with executive circuits of the high-voltage generator is implemented. This makes it possible to virtually eliminate the possibility of the formation of stray ground loops and the flow of dangerous pulsed currents from electrostatic and corona discharges of a high-voltage source in the sensitive circuits of the tomography recording camera and Ethernet communication with the control computer and, as a result, radically increase the reliability of the device. The unit supports the operation of the XRF-160 generator in the modes of stabilization of the output voltage or stabilization of the emission current of the X-ray tube and provides adjustment and indication of the main parameters of the high-voltage installation - the maximum permissible and operating filament current of the cathode, high voltage and emission current of the tube. The unit is assembled in a typical 19-inch case.
Ideological confrontations over globalization
Authors: Steger Manfred B. 
Published: May 2020

Abstract
Debates about globalization are often characterized by rhetoric suggesting it is either ‘a good thing’ or ‘a bad thing’. ‘Ideological confrontations over globalization’ focuses on the assumptions behind these concepts and clashes. Market globalism is underpinned by neoliberal theories which suggested that globalization is both positive and inevitable. Justice globalism has sprung up around the world with various ‘Occupy’-style movements, while religious globalisms seek to mobilize a religious community imagined in global terms in defence of religious values and beliefs thought to be under attack by the forces of secularism and consumerism. Recently, there has been a rise in ‘anti-globalization’ voices in authority from populist movements.
The future of globalization
Authors: Steger Manfred B. 
Published: May 2020

Abstract
‘The future of globalization’ explores three possible scenarios, first exploring the possibility of a backlash against globalization with the consequence of increased restrictions to movement and the strengthening of political authoritarianism. The second possibility is the weakening of nationalist populism and a return to a neoliberal, left-leaning globalization, possibly with a high-tech face. The third possibility is a stalemate between the two forces of nationalism and market globalism. Globalization has both caused and responded to new global problems beyond the reach of any one nation-state, and for new problems, we need new, more inclusive, and sustainable solutions guided by the principles of ethical globalism.
Unipept CLI 2.0: adding support for visualizations and functional annotations
Authors: Verschaffelt Pieter , Van Thienen Philippe , Van Den Bossche Tim , Van der Jeugt Felix , De Tender Caroline , Martens Lennart , Dawyndt Peter , Mesuere Bart 
Published: May 2020

Abstract

Summary
Unipept is an ecosystem of tools developed for fast metaproteomics data-analysis consisting of a web application, a set of web services (application programming interface, API) and a command-line interface (CLI). After the successful introduction of version 4 of the Unipept web application, we here introduce version 2.0 of the API and CLI. Next to the existing taxonomic analysis, version 2.0 of the API and CLI provides access to Unipept’s powerful functional analysis for metaproteomics samples. The functional analysis pipeline supports retrieval of Enzyme Commission numbers, Gene Ontology terms and InterPro entries for the individual peptides in a metaproteomics sample. This paves the way for other applications and developers to integrate these new information sources into their data processing pipelines, which greatly increases insight into the functions performed by the organisms in a specific environment. Both the API and CLI have also been expanded with the ability to render interactive visualizations from a list of taxon ids. These visualizations are automatically made available on a dedicated website and can easily be shared by users.

Availability and implementation
The API is available at http://api.unipept.ugent.be. Information regarding the CLI can be found at https://unipept.ugent.be/clidocs. Both interfaces are freely available and open-source under the MIT license.

Contact
pieter.verschaffelt@ugent.be

Supplementary information
Supplementary data are available at Bioinformatics online.
Site vs. core laboratory variability in computed tomographic angiography-derived SYNTAX scores in the SYNTAX III trial
Authors: Katagiri Yuki , Andreini Daniele , Miyazaki Yosuke , Takahashi Kuniaki , Komiyama Hidenori , Mushtaq Saima , Sonck Jeroen , Schoors Danny , Maisano Francesco , Kaufman Philipp A , Leal Ingrid , Lindeboom Wietze , Piek Jan J , Wykrzykowska Joanna J , Morel Marie-Angele , Bartorelli Antonio L , Onuma Yoshinobu , Serruys Patrick W ,   the SYNTAX III REVOLUTION Investigators
Published: May 2020

Abstract

Aims
To investigate the variability between site and core laboratory (CL) calculation of the anatomical SYNTAX score (SS) based on coronary computed tomography angiography (CTA) alone and functional SS based on coronary CTA and fractional flow reserve derived from computed tomography (FFRCT) in the SYNTAX III trial.

Methods and results
The SYNTAX III trial was a multicentre, international study that included 223 patients with three-vessel disease with or without left main involvement. Functional SS was computed by subtracting non-flow limiting stenoses (FFRCT &gt; 0.80) from anatomical SS. SS was combined with clinical information to generate the SYNTAX score II (SS II) that provides treatment recommendations. The mean anatomical SS based on coronary CTA alone was 33.4 ± 12.7 by sites and 37.1 ± 13.4 by CL (P &lt; 0.001). The mean functional SS based on coronary CTA and FFRCT was 30.5 ± 13.0 by sites and 33.3 ± 13.6 by CL (P &lt; 0.001). The intraclass correlation coefficient was 0.49 [95% confidence interval (CI) 0.37–0.59) in anatomical SS and 0.62 (95% CI 0.52–0.70) in functional SS. The Cohen’s κ comparing treatment recommendation between sites and CL was 0.68 (95% CI 0.58–0.78) based on anatomical SS and 0.71 (95% CI 0.60–0.82) based on functional SS.

Conclusion
The mean anatomical SS derived from coronary CTA alone and functional SS based on coronary CTA and FFRCT were higher when assessed by the CL than by the sites themselves. However, substantial agreement in treatment recommendation by SS II between sites and CL was demonstrated.

Clinical Trials.gov Identifier
NCT02385279.
Glycogen storage cardiomyopathy (PRKAG2): diagnostic findings of standard and advanced echocardiography techniques
Authors: Pena José Luiz Barros , Santos Wander Costa , Siqueira Maria Helena Albernaz , Sampaio Isaac Hermes , Moura Isabel Cristina Gomes , Sternick Eduardo Back 
Published: May 2020

Abstract

Aims
Describe the findings obtained using standard echocardiography (Echo) and deformation indices (2D and 3D speckle tracking strain) in patients (Pts) with PRKAG2 cardiomyopathy. Seek to identify any peculiar characteristics and possible strain patterns that may distinguish this condition from other causes of left ventricular hypertrophy (LVH).

Methods and results
Thirty Pts with genetically proven PRKAG2 (R302Q and H401Q), 16 (53.3%) male, mean age 39.1± 15.4 years old, were examined using standard, speckle tracking (STE), and 3D Echo. Pacemaker (PM) had been implanted in 12 (40%) Pts with a mean age of 38.1 ± 13 years. Hypertrophy was found in varying degrees in 18 (86%) Pts. Seven Pts (24%) presented 3D ejection fraction (EF) below normal limits. Diastolic function was abnormal in 17 (63%) Pts. Global longitudinal strain (GLS) on 2D measured −16.4% ± 5.3%. GLS measured −13.2% ± 4.8%, global radial strain 40.8% ± 13.8%, global circumferential strain (GCS) −16.1% ± 4.4%, and global area strain −26.1% ± 6.7% by 3D Echo offline analyses. Pts with PM presented lower EF and GCS compared with those without PM. EF/GLS measured 3.65 ± 1.00. In the bull's eye map, a strain pattern similar to stripes in 18 (60%) Pts was identified, which might be a differentiating signal among LVH.

Conclusion
Echocardiography is a valuable tool in detecting diffuse and focal myocardial abnormalities in PRKAG2 cardiomyopathy. The deformation indices are especially revealing because they may help distinguish this rare infiltrative disease, thereby favouring early diagnosis, enhanced treatment, and improved outcome.