bluuebunny/crossref_metadata_2025_split huggingface dataset:
Models of adaptive integration of weighted interval data in tasks of predictive expert assessment
Authors: Ruban Igor , Horenskyi Hennadii , Romanenkov Yuri , Revenko Daniil 
Published: November 2022

The problem of improving the methodological and algorithmic support of the complexing process by developing models of adaptive redundant complexing of weighted interval data has been solved. The object of this study is the process of complexing interval data obtained from several independent sources; the subject is the algebraic methods of excessive complexing of weighted interval data. The relevance of the task is due to the severity of the problem of consolidating homogeneous data in order to obtain more accurate and relevant information about the object or process under study. Models have been developed that, unlike the existing ones, make it possible a posteriori to take into account the accuracy of experts at the preliminary stage of expert evaluation. A single analytical form of the model for processing weighted interval and point estimates with the possibility of structural and parametric tuning is proposed. It allows one to increase the degree of automation of processing expert assessments under conditions of interval uncertainty. Recommendations for the practical application of the proposed models have been formulated. Options for parametric configuration of preference functions were indicated depending on the characteristics of weighted interval estimates. The commonality of the limiting cases of the proposed models with previously known ones is proved. The example shows the shift of the integrated assessment to the side of more accurate assessments at the previous stage of source assessment. The adaptability of the proposed models is illustrated. At the same time, a slight, on average, about 10 %, expansion of the complexed interval relative to the primary ones was registered. The built models and algorithms can be used in automated expert systems, as well as in cascade models of information processing and compression.
Neutronic analysis on molten salt reactor FUJI-12 using 235U as fissile material in LiF-BeF2-UF4 fuel
Authors: Mabruri Ahmad Muzaki , Syarifah Ratna Dewi , Aji Indarta Kuncoro , Hanifah Zein , Arkundato Artoto , Jatisukamto Gaguk 
Published: November 2022

Neutronic analysis on the Molten Salt Reactor FUJI-12 using the fissile material 235U in LiF-BeF2-UF4 has been carried out. The problem faced in the use of thorium-based fuel is that the amount of 233U is small and not available in nature. 233U was produced through the 232Th breeding at a cost of $46 million/kg. That is a very high price when compared to 235U enrichment, which is only $100/kg. The MSR FUJI-12 used in this study is a generation IV reactor with a mixture of liquid salt fuel LiF-BeF2-ThF4-UF4 and thorium-based fuel (232Th+233U). In this study, neutronic analysis was carried out by replacing thorium-based fuel with uranium-based fuel (235U+238U). Neutronic analysis was performed using the OpenMC 0.13.0 code, which is a Monte Carlo simulation-based neutron analysis code. The nuclear data library used for neutronic calculations is ENDF B-VII/1. The fuel is used in a LiF-BeF2-UF4 molten salt mixture with three eutectic compositions: fuel 1, fuel 2, and fuel 3. Each fuel composition is optimized by enriching 235U in UF4 by 3 % to 8 %. The optimization results show the stability of the reactor criticality value, which is the main parameter so that the reactor can operate for the specified time. The optimization results show that fuel 1 cannot reach its optimal state in each variation of 235U enrichment. Fuel 2 and fuel 3 can reach optimal conditions at a minimum enrichment of 8 % and 7 % 235U. The results of the analysis of the distribution of the neutron flux in the reactor core show the distribution of nuclear reactions that occur in the core. The distribution of flux values in fuel 1 shows that the fission chain reaction is not running perfectly. Fuel 2 and fuel 3 are more stable by maintaining maximum flux at the center of the reactor core.
Design of chemically modified bacteriorhodopsin films for information protection systems
Authors: Trikur Ivan , Batori-Tartsi Zita , Sichka Mykhailo , Rizak Galina , Rizak Vasyl 
Published: November 2022

The object of this study is the processes of interaction of fragments of purple membranes with certain chemicals, which affect the photochromic properties of bacteriorhodopsin films. This paper considers the possibility of modifying the properties of bacteriorhodopsin films by changing their chemical composition, which will make it possible to use such films to protect information. For this purpose, it has been determined which optical properties of bacteriorhodopsin are most important for its use in the field of information protection; films were made using various chemicals as impurities. It was shown that the introduction of impurities does not affect the absorption spectrum of bacteriorhodopsin, which indicates that it retains its properties. It has been established that impurity substances are evenly distributed in films. By studying the dynamics of photoinduced changes in films with different concentrations of chemical components, the effect of chemical modification on the photocycle of bacteriorhodopsin and the properties of film structures based on it was studied.
Based on the results of experimental studies, it was found that by changing the chemical composition of films, it is possible to change the time of storage of the information recorded on them in the range from several to hundreds of seconds continuously. The sensitometric sensitivity of film structures also depends on the chemical composition and can vary in the range from 3.9·10–3 to 54·10–3 m2/J. At the same time, chemical modification is simpler from a technological point and cheaper from a financial point of view compared to other methods that make it possible to achieve similar results. The reported results suggest that chemically modified films based on bacteriorhodopsin have great potential for practical application in the field of information protection and access control
Designing a voltage control system of the magnetoelectric generator with magnetic flux shunting for electric power systems
Authors: Ostroverkhov Mykola , Chumack Vadim , Tymoshchuk Oksana , Kovalenko Mykhailo , Ihnatiuk Yevhen 
Published: November 2022

The object of research in this work is a three-phase magnetoelectric generator with magnetic flux shunting based on industrial induction electric motors.
The presence of a magnetic shunt makes it possible to control the voltage of the generator by changing the excitation current in the non-contact electrical winding of the magnetic shunt, which is powered by direct current. Thus, the problem of stabilization of the output voltage of the generator with permanent magnets is solved when the speed of rotation and load change.
This paper reports the construction of a three-dimensional field mathematical model of the generator, which allows for electromagnetic calculations of the generator with specified parameters, taking into consideration the influence of final effects, magnetic scattering fields, as well as their radial-axial nature. The results of the calculation of the electromagnetic field are the initial parameters for building a simulation model in the MATLAB-Simulink environment. A simulation model of a magnetoelectric generator with magnetic flux shunting under conditions of changing rotational speed and load has been constructed in the MATLAB-Simulink environment.
On the basis of the built models, the performance characteristics of a magnetoelectric generator with magnetic flux shunting were established, which show the limits of control of the output voltage. Adjusting characteristics were determined at zero and rated shunt current for different types of load. The adjusting characteristics of the generator are presented at the rated voltage of the generator for different types of load and with an increase to 150 % of the rated value. The study's results show the high efficiency of the voltage control system of a magnetoelectric generator with a magnetic shunt at different speeds of rotation and load
Establishing patterns of nitrogen application for fire safety of sunflower grain storage facilities
Authors: Tsapko Yuriy , Sokolenko Kostiantyn , Vasylyshyn Roman , Melnyk Oleksandr , Tsapko Аleksii , Bondarenko Olga , Karpuk Anatolii 
Published: November 2022

The issue of using nitrogen to eliminate fires in granaries is related to ventilating the grain mass with nitrogen while it is necessary to take into consideration the change in gas concentration. Therefore, the object of this research was the value of the minimum concentration of nitrogen to eliminate the combustion of sunflower grain. It has been proven that in the process of thermal destruction of sunflower grain, the composition of gaseous products of thermal destruction of sunflower grain contains more than 70 % of combustible gases. Namely: carbon monoxide, over 51 %; hydrogen, about 5.7 %; and hydrocarbons with a total concentration of 13.72 %, which provide fire hazardous properties of organic material. Therefore, it should be noted that the release of the amount of combustible gases during pyrolysis requires a reduction in the amount of oxygen in the gas-air environment to eliminate fire sites. Obviously, such a mechanism for the decomposition of sunflower grain during pyrolysis is a factor in regulating the extinguishing process, due to which the amount of nitrogen to eliminate combustion increases. Comparison of experimental studies on the composition of gaseous products of thermal destruction of sunflower grain and studies to determine the minimum fire extinguishing concentration of nitrogen, at which combustion was stopped, made it possible to justify the use of nitrogen. Based on the study's results on the elimination with nitrogen of fire sites of sunflower grain, the values of the minimum fire extinguishing concentration were revealed at extinguishing, about 33.7 % by volume. At the same time, terminating the combustion of sunflower grain occurs with a decrease in the concentration of oxygen in the gas-air environment of about 14 %. The practical significance is the fact that the results obtained for determining the minimum fire extinguishing concentration of nitrogen make it possible to establish operating conditions for granaries when eliminating fire sites
Determining the influence of wastewater hydrodynamics in bioreactors on the process of mass transfer
Authors: Vorobyova Olya 
Published: November 2022

The anaerobic method of treating wastewater from biotechnological and economic industries has great prospects for the development of a renewable energy source. Biogas released during the operation of the bioreactor can be used as an energy source for the generation of electricity and heat.
This paper reports the design of an apparatus for wastewater treatment with microorganisms immobilized on inert carriers. The original substrate supplied to the bioreactor is heated by thermostating. The temperature of the original substrate is controlled using an electronic temperature meter. Temperature in the bioreactor is also controlled; maintaining the methane growth of microorganisms in the range of 35–37 °C is enabled by a temperature sensor. The gas that is released during the experiment is collected in a gas collector, where its volume is measured, owing to the torn cylinder connected to the gas collector. Additionally, a temperature sensor is installed in the gas collector to determine the mass of the biogas collected in the experiments. Owing to the high-speed camera connected to a computer, the process of formation and separation of gas bubbles from the biofilm is recorded, as well as the thickness of the biofilm on flat carriers. To determine the effect of hydrodynamics under a laminar mode of wastewater supply, in the bioreactor channels, a peristatic dosing pump is used in the experimental installation. In the experiments, the thickness of the biofilm changed in the range from 10-3 m to 4.8·10-3 m and, because of this, the width of the channel along which the substrate flow moved changed accordingly.
Experimentally, it was established that the volume of biogas released increases with an increase in the rate of wastewater in the bioreactor channels. Based on the experimental results, a criterion equation was built using which can determine the coefficient of mass yield
Broad-purpose antimicrobial chlorine-active polymers: suppression of multidrug-resistant microorganisms and microbial penetration resistance
Authors: Murashevych Bohdan , Koshova Iryna , Surmasheva Elena , Girenko Dmitry , Chuiko Vasyl , Stepanskyi Dmytro 
Published: November 2022

The aim of the work was to evaluate the antimicrobial activity of polymeric materials with immobilized N-Chlorosulfonamide groups against multidrug-resistant hospital strains of common microorganisms and to determine the resistance to microbial penetration of these materials.
Materials and methods: the studied samples were copolymers of styrene with divinylbenzene in the form of staple fibre and non-woven fabric with immobilized
N-Chlorosulfonamide groups of various structures. Hospital strains of microorganisms have been isolated from clinical material; their antibiotic sensitivity has been determined by the Kirby-Bauer method. The agar diffusion method determines the antimicrobial activity of the polymers. Resistance to microbial penetration of samples of non-woven fabric has been determined by the membrane filtration method.
Results: polymer samples have been synthesized with immobilized N-Chlorosulfonamide groups in the Na- and H-forms, and with the N, N-dichlorosulfonamide group, with chlorine concentration range 3.7 - 12.5 %. All samples demonstrated pronounced antimicrobial activity against both standard and hospital strains. Due to the higher specific surface area, staple fibre is generally more efficient. An increase in the zone of inhibition of the growth of microorganisms was observed with an increase in the concentration of immobilized chlorine. All the studied fabric samples are impermeable to S. aureus. The control samples containing the free sulfonamide group did not show antimicrobial properties.
Conclusions: synthesized chlorine-active polymers have a pronounced antimicrobial activity against multidrug-resistant microorganisms, demonstrate high resistance to microbial penetration and therefore are promising for creating a wide range of medical products on their basis: dressings, protective masks, antimicrobial filters, etc.
Prothrombin Gene Polymorphism (G20210A) among Sudanese Patients with Intracerebral Hemorrhage, Khartoum State, 2022
Authors: Hasssan Manasik siddig , Abd Algader Abubker Alsiddig , Almahy Abdallah Esraa Kamal , Ibrahim Wessam Salah , Hamed Sawsan A. , Gassoum Alsadig , Merghani Maye  M. , Alabid Tyseer , Ibrahim Asim Eltyeb , Babiker Nihad alsadig 
Published: November 2022

Background
Intracranial hemorrhage is the third most frequent cause of cerebrovascular disease, also known as cerebral bleed, intraparenchymal bleed and hemorrhagic stroke. This study was designed to detect the possible present of factor II polymorphism (G20210A) among Sudanese patients with Intercereberal hemorrhage.
Material and method
This study was cross sectional hospital-based study,conducted at the research laboratory of the national center of neurological sciences (NCNS), Khartoum, Sudan during the period June 2022 to August 2022.It included all patients attended with intracerebral hemorrhage, demographic data ( age , gender, associated disease ). DNA extraction was done from blood of all patients and control.PCR for factor prothrombin gene was done and thus Sanger sequencing.
Results:
The PCR results showed; 100% positive forfactor II gene. And sequencing result showed base bare exchange in factor II gene G to A (G20210A)polymorphism .
Conclusion
Factor II gene polymorphism (G20210A) was detected and might be association with Intercereberal hemorrhage among Sudanese patients
Control of Root-knot Nematode, Meloidogyne incognita and Reniform Nematode, Rotylenchulus reniformis on Chickpea
Authors: Anver Suhail 
Published: November 2022

Background: The root-knot nematode, Meloidogyne incognita (Kofoid and White) Chitwood and reniform nematode, Rotylenchulus reniformis (Linford and Oliveiro) have been found consistently associated with plant damage and reduced yield of chickpea (Cicer arietinum L.), important pulse (grain legume) crop of India. Methods: Seeds of chickpea were soaked in S, S/2, S/4 extracts of rice polish and 0.1, 0.3, 0.5% solution of pyridoxine for 4 h. Four treated seeds were sown in each pot. Three week old plants were inoculated with 5000 M. incognita or R. reniformis larvae. Result: The root-knot nematode M. incognita and reniform nematode, R. reniformis caused significant reduction in different growth parameters (length and weight of plant, number of pods), chlorophyll content of leaf and water absorption of roots. Similar effects were also observed in plants raised from seeds soaked in different concentrations of water soluble fractions (WSF) of rice polish and pyridoxine solutions, however, the reductions were of comparatively lesser extent. Higher concentrations of the solutions were more effective as compared to lower ones and pyridoxine was more beneficial than WSF for improving plant growth and reducing disease incidence.
Komatiitic Subvolcanic Rocks in the Mount Khanlauta Massif, Serpentinite Belt (Kola Peninsula)
Authors: Barkov A.Yu. , Nikiforov A.A. , Barkova L.P. , Izokh A.E. , Korolyuk V.N. 
Published: November 2022

Abstract
—For the first time, exposures of ultramafic rocks of subvolcanic origin have been investigated at the foot of Mount Khanlauta (Kola Peninsula) located at a distance of ~2 km from the southwestern margin of the Pados-Tundra layered complex of dunite–harzburgite–orthopyroxenite composition, which hosts zones of chromitite and unconventional PGE mineralization. The ultramafic body is composed of micro- to fine-grained harzburgite and subordinate orthopyroxenite and has a cryptically zoned structure. The body is of E–W strike and has a small size with an apparent thickness of ~0.1 km; the exposed outcrops exhibit a blocky surface as a result of extensive cracking caused by degassing and rapid cooling of a parental komatiitic melt. Elements of columnar parting are recognized, which have a hexagonal shape in cross section and are consistent with the inferred subvolcanic origin. Two zones are identified. Zone I is formed by a more magnesian olivine with Mg# = 86.0–87.9 (0.15–0.21 wt.% MnO). In Zone II, olivine grains are notably less magnesian (Mg# = 81.8–84.1) and invariably have higher contents of manganese (0.19–0.30 wt.% MnO). The presence of this zoning is corroborated by the lateral distribution of accessory chromian spinel grains with maximum Mg# values (&gt;20) in Zone I. The Khanlauta rocks also contain subordinate orthopyroxene (Mg# = 86.3–87.2), amphiboles of the tremolite–actinolite series, and anthophyllite of deuteric (autometasomatic) origin along with accessory minerals: ilmenite, hematite (~15 mol.% escolaite, Cr2O3, in solid solution), and mono- and diphase grains of sulfides in the form of intergrowths of Co-bearing pentlandite (Ni/Fe = 0.9–1.3; 1.00–16.74 wt.% Co; up to 1.7–6.8 wt.% Cu) and heazlewoodite (locally in intergrowth with hematite). The inferred front of crystallization moved in the western direction, causing the formation of Zone II from a more fractionated melt with a notably lower Mg# value. A sharp increase in oxygen fugacity locally caused the formation of anomalous parageneses of chromite and ilmenite, in which the observed Mg# values of ilmenite are considerably greater than those of the coexisting chromite. The geochemical whole-rock characteristics based on major, minor, and trace elements (including LILE, REE, and HFSE), as well as the compositions and trends of chromian spinels, are similar to those in differentiated (zoned) sills of the Chapesvara complex, which are closely associated with the Pados-Tundra layered complex. The obtained data indicate comagmatic relationships among the Khanlauta massif, zoned sills of the Chapesvara complex, and the Pados-Tundra layered complex. All of them crystallized from a primitive highly magnesian Fe- and Cr-enriched komatiitic magma (Al-undepleted). Thus, they belong to a single subvolcano–plutonic association being part of the Serpentinite belt–Tulppio belt (SB–TB) megastructure of presumably Paleoproterozoic age.
Optical Coherence Tomographic morphological changes over the course of Ranibizumab Treatment in Diabetic Macula Edema
Authors: Chen Nan-Ni , Lai Chien-Hsiung , Liao Yi-Lin , Chen Ching-Lung , Huang Jou-Chen , Chu Yen-Chang , Wu Pei-Lun , Chen Chau-Yin 
Published: November 2022

Abstract
Background/Objectives
The purpose of this study was to present an association among different morphologic subtypes of diabetic macular edema (DME) and their response and changes in morphological features of spectral domain optical coherence tomography (SD-OCT) over time after intravitreal ranibizumab (IVR) injections.
Subjects/Methods
This retrospective study included 228 eyes of 150 subjects received IVR for DME and were observed for at least 2 years. Medical charts and SD-OCT image of consecutive patients were reviewed at designated time points after first IVR treatment.
Results
For a total of 228 eyes, 42 eyes (18.4%) were classified as group 1 (with OCT morphological changes) and 186 eyes (81.6%) classified as group 2 (without OCT morphological changes). The baseline best-corrected visual acuity and 2nd year central macula thickness were significantly different between two groups (p=0.035, p=0.001), with group 1 a poor BCVA (log MAR) 0.84±0.39 and greater CMT at 2nd year (354.21±89.02). Vitreomacular interface abnormalities (VIMA) was the most common type of change and developed in 14.9% of patients with DME who received intravitreal injection of ranibizumab treatment during a follow-up period of 24 months. Stroke was found as a risk factor for developing into another DME subtypes with odds ratio 6.381 (p= 0.038).
Conclusions
Macula edema disappeared rapidly after IVR treatment and might recur or even evolve to other subtypes over time, which may indicate a disease progression with poor outcome. VIMA was the most common type of change and presented in all eyes with DME irrespective of the type of macular edema as classified by SD-OCT.
Optimization of Laser Pulse for Double-cone Ignition via Machine Learning
Authors: Song Huanyu , Wu Fuyuan , Yang Xiaohu 
Published: November 2022

Abstract
Double-cone ignition (DCI) scheme is a promising fast-ignition approach for the realization of inertial fusion energy. The optimization of laser pulse plays a key role for the fuel compression required by the high gain fusion burning. In this paper, we employ the genetic algorithm in machine learning to optimize the laser pulse in couple with one-dimensional hydrodynamic simulations for the fuel compression. It is found that quantum degeneracy is beneficial for the achievement of high density compression. Analysis from the dataset indicates that the areal density is strongly proportional to the peak density and implosion velocity. Numerical results also suggest that a peak density of 1000 g/cm 3 and an areal density of 3 g/cm 2 could be achieved with a drive energy of 300 kJ in the configuration of double-cone ignition scheme.