bluuebunny/crossref_metadata_2025_split huggingface dataset:
The specific features of the thermal radiation of lake Kenon during freeze-up in the infrared band
Authors: Gurulev A A , Kazantsev V A 
Published: January 2022

Abstract
This work is the study of the infrared images of Lake Kenon located in the city of Chita. The images were obtained from a satellite Lansat-8. The images revealed the thermal anomalies of the said internal water body. The anomalies consisted in the fact that areas of open water having negative temperature are formed in the lake in the winter period. The phenomenon may be caused both by surface supercooling of the lake water and by formation of water aerosol at the temperature below 0°C. The emergence of areas with supercooled water may be, paradoxical as it may sound, due to the impact of the thermal power plant located near the lake. Its functioning prevents formation of the ice cover, especially at the locations of warm water discharge. Analysis of the satellite images in the IR-band obtained over the recent five years has shown the area of the higher water temperature on the lake surface not to exceed 10% of the total area of the lake. The time before the freeze-up in the absence of wind, October – November, is the best time for revealing the maximum temperature difference.
Calculation of temperature waves in kurums
Authors: Ye Kholodovskii S 
Published: January 2022

Abstract
The article indicates the relevance of the study of heat transfer processes in kurums. Boundary value problems of vertical temperature change in kurums and in the underlying rock base are solved, when the temperature on the surface of kurums changes according to a given periodic law, which simulates daily and seasonal temperature fluctuations. The cases when the rock base is a heat-conducting medium and permafrost are considered. Some regularities of temperature propagation along the depth are revealed.
The features of the biotopic distribution of Orthoptera insects in the Adon-Chelon terrain (Daursky Nature Reserve, Southern Transbaikalia)
Authors: Korsun O V , Zapletnyuk G A 
Published: January 2022

Abstract
The features of the species composition and abundance of orthoptera insects (Insecta, Orthoptera) in different stations of the Adon-Chelon locality (Daursky Biosphere Reserve, south-eastern Transbaikalia) were studied. The differences in these parameters were revealed for Orthoptera communities inhabiting different stations. The differences in the Orthoptera fauna were noted in comparison with previous studies, which may be associated with cyclical climatic changes characteristic of Southern Transbaikalia.
Patents for inventions in the Russian oil and gas sector: an analysis of the knowledge database complexity
Authors: Kryukov V A , Tokarev A N 
Published: January 2022

AbstractThe authors have analyzed invention patents in the Russian oil and gas sector (OGS) based on a knowledge database complexity index they designed for this purpose. The index takes into account the subclasses and sections of international patent classification (IPC) used in the patents. It has been demonstrated that opportunities for creating breakthrough technologies and radical innovations mostly arise within giant multinational oil and gas field service companies (e.g. Halliburton, Schlumberger, Baker Hughes). At the same time, Russian oil and service companies are noticeably lagging behind the foreign players and Russian actors in the sphere of science and education. The conducted analysis of the sectoral knowledge database revealed several significant risks for the development of the Russian OGS along the innovative trajectory. The risks (relative to the invention patents) arise from inadequate opportunities for creating breakthrough technologies.
Current state, prospects and problems of the gold mining industry of the Trans-Baikal Territory
Authors: Latysheva M A 
Published: January 2022

Abstract
The article considers the current state, problems and prospects of gold mining in the Trans-Baikal Territory. There has been an increase in the volume of gold production from ore and placer deposits over the past 5 years. Placer deposits make up a significant part of the total production volume. The reduction of reserves in placers and the decrease in the quality of minerals in them open up new prospects for the extraction of precious metals, namely in ore gold mining. The extraction of placer gold, even with the best existing technologies, remains a sector of high environmental risk, in many settlements there is a gradual decline in the population and the “extinction” of settlements, as well as illegal gold mining is gaining momentum. Neither regional nor federal environmental supervision bodies have the opportunity to resist the destruction and degradation of nature from the extraction of placer gold. In general, this leads to an increase in the negative impact of placer gold mining on natural complexes and socio-economic sustainable development of regions and municipalities on the territory of which this type of activity is carried out, an increase in accumulated environmental damage.
New results of a palynological study of the Lake Doroninskoe sediments (Eastern Siberia, Transbaikalia)
Authors: Reshetova S A 
Published: January 2022

Abstract
This article presents the results of the study of the bottom sediments of the meromictic Lake Doroninskoe. For the study, the method of spore-pollen analysis was used. The record showed that during the accumulation of 65 cm of the sediment layer in the Chita-Ingodinskaya depression, pine and larch predominated along the ridges, with steppe and meadow associations in the lower parts of the depression. According to regional correlations, the distribution of light-coniferous-taiga vegetation in Transbaikalia occurred as early as the Middle Holocene, and it did not undergo cardinal changes until modern times. According to these data, sediments may have accumulated during this time period.
Cladocera species (Crustacea, Branchiopoda) in the littoral zone of Lake Baikal: some representatives of Daphniidae families
Authors: Sheveleva N G , Mirabdullayev I M , Neronova S Y 
Published: January 2022

AbstractBrief morphological descriptions of new Cladocera taxa (Daphniidae):Daphnia(Daphnia)turbinataSars, 1903;Daphnia (Ctenodaphnia) sinensisGu, Xu, Li, Dumont et Han 2013, found in Lake Baikal are presented. The representatives of these taxa inhabit the littoral zone of the lake and Olkhon Island.Daphnia (Ctenodaphnia) sinensiswere encountered in the water bodies in the south of Eastern Siberia for the first time.
Features of the metal distribution in the technogenic and natural waters of the Novoshirokinsky deposit (Eastern Transbaikalia)
Authors: Taskina L V 
Published: January 2022

Abstract
To identify the degree of impact of technogenic activity on the main water bodies located in the immediate vicinity of mining production, an analysis of the composition and pH of the water, the chemical components of which are normalized by the Order of the Ministry of Agriculture of the Russian Federation (dated 13.12.2016, No. 552 with amendments), was carried out starting on 10.03.2020.
Mesozoic gold deposits of Eastern Zabaykalye: relationship to magmatism, isotopic composition
Authors: Abramov B N 
Published: January 2022

Abstract
It is noted that the formation of Mesozoic gold mineralization in Eastern Zabaykalye is associated with magmatic formations of the Amudzhikansky (J2-3), Shakhtaminsky (J2-3), and Sokhondinsky (J1) complexes formed during collisional and post–collisional processes. The nature of these magmatic formations has both mantle (87Sr/86Sr < 0.0706) and crustal components (87Sr/86Sr < 0.0706).Calculation of isotopic composition of oxygen from the ore veins of Aleksandrovsky and Lyubavinsky gold deposits revealed that fluids of magmatic nature were involved in their formation. These data indicate a magmatic source of the Mesozoic gold mineralization in Eastern Zabaykalye.
Geochemistry of ultramafic–alkaline rocks of the Ziminsky complex (on the example of the Bol’shetagninsky and Beloziminsky massifs) (Eastern Sayan)
Authors: Bazarova E P , Savelyeva V B , Danilova Yu V , Sholokhova Yu N 
Published: January 2022

Abstract
The paper compares the elemental composition of alkaline silicate rocks of the Bol’shetagninsky and Beloziminsky massifs, which are part of the Ziminsky complex of ultrabasic rocks and carbonatites. The rocks of the Bol’shetagninsky massif belong to the potassium series and are distinguished by increased concentrations of large ionic lithophilic elements; in the rocks of the Beloziminsky massif, the rocks of the sodium series predominate and the contents of highly charged elements are increased. Judging by the lack of correlation between the highly charged elements in alkaline and subalkaline rocks of the Bol’shetagninsky massif, their formation, in contrast to the rocks of the Beloziminsky massif, is not associated with the process of fractional crystallization.
Arsenic speciation and sorption in acid mine drainage and the polluted water of the Kosva river basin, Russia
Authors: Fetisova N F 
Published: January 2022

Abstract
Acid mine drainage (AMD) of the abandoned coal mines of the Kizelovsky coal basin (the Urals, Russia) is one of the worst natural disasters in the region. Acidic sulphate waters with a high content of metals freely flow into the surface water bodies. Arsenic, found in elevated concentrations in AMD, is an element of concern due to its potential toxicity to humans and animals. The aim of this work is determination of chemical speciation of inorganic arsenic in AMD as well as the surface water and groundwater affected by mine drainage, and assessment the natural removal of As from mine drainage due to adsorption on precipitated hydrous ferric oxide (HFO). Geochemical speciation (PHREEQC) revealed that arsenic occurs in all water samples as As(V). Surface complexation model shows that, HFO induced by the natural attenuation process may remove 46–85% of total arsenic in AMD and only 28% in polluted groundwater (on average).
Comparative review of phenological events observed by academician P.S. Pallas in Transbaikalia in the second half of the 18th century
Authors: Korsun O V 
Published: January 2022

Abstract
This article analyses the phenological data about the flowering of some plant species obtained by P.S. Pallas in Transbaikalia during his academic expedition in 1772. For seven plant species, a noticeable shift in modern flowering phases to earlier dates is shown.
Mercury as an indicator of geological and environmental risks in the development of various mineral raw materials
Authors: Mustafin S K , Trifonov A N , Anisimova G S , Struchkov K K 
Published: January 2022

Abstract
Mercury is a highly toxic pollutant of the environment, and a quantitative assessment of its emission and migration in the technogenic transformation of mining regions is vital. The presented study focuses on the features of mercury concentration in the natural mineral raw materials, commercial products and processing waste by the example of mercury-containing copper pyrite deposits in the Urals. Mercury (its quantitative indicators) is used as a reliable element-tracer of the evolution of the technogenic system: mineral raw materials – subsurface use wastes – environmental components – food products – the human body. Such integrated approach is recommended for optimizing the forecasting, assessment and management of geological and environmental risks, as well as for the geological and environmental monitoring of the modern mining engineering system.
To the problem of the Torey lakes
Authors: Salikhov V S 
Published: January 2022

Abstract
The socio-ecological problem of the Torey Lakes, a UNESCO World Natural Heritage Site, which arose in connection with the construction of a dam on the Uldza River, which began by Mongolia, which is the main ground feeding artery of the lakes, is considered. An option is proposed to save the lakes on our own, by laying a water supply system with a length of about 40 km. from Onon River, with the preliminary construction of a reservoir here due to the confluence of the channels of the old, middle and new Onon, as well as options for groundwater budding. Examples of the transfer of river waters carried out in different regions are given.
Impact of selected teleconnection pattern on solar energy potential in different climatic zones of Nigeria
Authors: Awe O F , Ogunjo S T , Rabiu A B , Ajanaku O J , Ijila I D 
Published: January 2022

Abstract
Meeting the energy demands and sustainable development goals in Nigeria requires investigation of potentials of alternative energy sources and possible challenges to their reliability. In this study, we investigated the impact of four (4) teleconnection patterns on the solar energy potential within different climatic zones of Nigeria. Our results indicate that there are weak and insignificant correlation between the studied teleconnection patterns and solar energy potential on the long run. However, monthly analysis suggests significant correlation values between all the teleconnection patterns studied and solar energy production within all the climatic regions of the country. Therefore, it is important to consider the role of teleconnection pattern in energy planning and forecasting within the region.
Types of smart systems and their application in power grids
Authors: Mehmed-Hamza M E , Filipov A B , Ivanova M D 
Published: January 2022

Abstract
With the development of modern technologies, opportunities for an exchange of the increasing amount of information at ever higher speeds are created. The use of smart systems in electric power engineering creates conditions for improving the systems for monitoring, archiving, analysis and management. It is necessary to collect the basic information about the emergency modes automatically for analysis of the operation of the equipment and the parameters of the regimes in the power grids. The main questions to be decided are: what type of information is needed, how to use this information and at what are the different access levels, what should be the systems - local or global, how to exchange data. Smart systems for power grids and switchgears have been developed on a modular basis by almost all global manufacturers, as well as by many companies on individual assignments. The publication discusses the existing types of smart systems and the data they process. Suggestions have been made for the volume and structure of data that are needed for the analysis process.
Assessment of energy efficiency of a motor yacht depending on routes and sailing area
Authors: Ivanova G , Gyurov V 
Published: January 2022

Abstract
The report presents an analysis of luxury charter yachts which are a specific class of vessels that, in order to meet the schedules and increased requirements of the owners regarding the luxury of the services offered, have relatively high energy consumption for their gross tonnage, compared to other passenger ships. The study focuses on the analysis of energy efficiency of luxury yachts by calculating the energy efficiency index (EEDI). This involves comparing different parameters that affect the value of the EEDI and can lead to energy savings. The report presents theoretical and experimental studies of the energy costs of a 70-meter luxury yacht for charter trips. With the use of the design data of the ship’s electrical equipment at different operating modes, at different routes, under different conditions, dependences for analysis of the optimal modes of movement are obtained, which leads to the realization of maximum savings of electricity and primary energy.
Evaluation of the behaviour of an induction motor for fan system under various external factors
Authors: Rachev S , Dimitrov L 
Published: January 2022

Abstract
Paper concerns a mathematical model developed for working process observation of a fan system squirrel-cage induction motor electric drive. The electric motor in question is designed for permanent, uninterruptible operation. The system of differential equations is converted and processed with the help of appropriate software. The impact of external factors is assessed – supply voltage deflection and variation of rates of mechanical quantities involved in the motion equation. Electrical power losses in steady-state regime and energy losses at start-up are calculated. The results obtained are practical oriented when considering methods to start and control the rotational frequency to imrove energy efficiency.
Statistical approach and multiplicative models for electric vehicles charging behaviour patterns
Authors: Koeva D Y 
Published: January 2022

Abstract
Since the charging processes of electric vehicles are stochastic and time-dependent, the paper views an approach based on a statistical analysis of real data on electricity consumption at charging station connection points. Other types of data (geographical, public sites, distance between individual charging stations, etc.) are also taken into account when making the analysis. Multiplicative models are the most suitable for studying and forecasting time series with pronounced cyclicity and seasonality. Their application allows us to consider the correlation of the load in the consuming nodes with regional features, climatic factors and seasonality. The method and approach discussed in this paper make possible the processing of a large amount of data and the detection of load cyclicity in the load schedule of electricity facilities. The results of the model will identify the requested charging power in a developing charging infrastructure.
Optimization of the operation of Dokan hydropower development using Cuckoo Search Algorithm
Authors: Ahmad-Rashid K 
Published: January 2022

AbstractIn this paper one of the recently developed metaheuristic algorithms, the Cuckoo Search algorithm is used for the optimization of the operation of a large hydropower plant in Kurdistan, Iraq. The optimization problem is to realize an annual planned energy generation with monthly imposed fractions. The obtained results are excellent, nevertheless, there are some limitations of the algorithm determined by the initial level into the reservoir and a certain correlation between the type of the year, the starting level and the planned energy to be realized.
Optimization of a complex hydropower development operation using HEC-ResSim
Authors: Tică E I , Ahmad-Rashid K , Sima O V , Popa F , Nedelcu O , Popa B 
Published: January 2022

Abstract
In this paper HEC-ResSim is applied for a complex hydropower development formed by five reservoirs and related hydropower plants. There were considered characteristics of five existing hydropower developments in Romania, for which three reservoirs are with annual regulation and two with daily regulation. The objective function was the realization of a planned energy generation for one year (the mean hydrological year). Obtained results are very close to those obtained applying linear programming, a revised simplex algorithm.
Effects of humidity on dust particle removal during solar panel cleaning
Authors: Chen E.Y , Renner P , Lee K , Guo B , Liang H 
Published: January 2022

AbstractSolar panel cleaning is important to maintain the efficiency of energy production. In this research, we investigated the effects of relative humidity and condensation on the effectiveness of cleaning. The dust particles are subjected to various forces once they are deposited on the surface of a solar panel. When the dust particles continue to build up, they are also subjected to the adhesion forces from the neighboring dust particles. The adhesion forces from the substrates and the neighboring particles are dependent on the ambient conditions. Fundamentally, the interaction between the adhesion force of particle-particle and particle-substrate under various conditions was discussed in this manuscript.
Fabry-Perot interference pattern scattered by a sub-monolayer array of nanoparticles
Authors: Osgood R M , Ait-El-Aoud Y , Bullion K , Dinneen S , Kingsborough R , Rothschild M , Kooi S 
Published: January 2022

Abstract
Understanding scattering of visible and infrared photons from nanomaterials and nanostructured materials is increasingly important for imaging, thermal management, and detection, and has implications for other parts of the electromagnetic spectrum (e.g., x-ray scattering and radar). New, interesting reports of photon scattering as a diagnostic probe, from inelastic x-ray scattering and interference to ‘nano-FTIR’ microscopy using infrared photons, have been published and are under active investigation in laboratories around the world. Here, we report, for the first time to our best knowledge, the experimental discovery of a Fabry–Perot interference pattern that is scattered by the sub-monolayer array of plasmonic Ag nanoparticles, and confirm it analytically and with rigorous numerical FDTD simulations.
Accurate and fast cell marker gene identification with COSG
Authors: Dai Min , Pei Xiaobing , Wang Xiu-Jie 
Published: January 2022

Abstract
Accurate cell classification is the groundwork for downstream analysis of single-cell sequencing data, yet how to identify true marker genes for different cell types still remains a big challenge. Here, we report COSine similarity-based marker Gene identification (COSG) as a cosine similarity-based method for more accurate and scalable marker gene identification. COSG is applicable to single-cell RNA sequencing data, single-cell ATAC sequencing data and spatially resolved transcriptome data. COSG is fast and scalable for ultra-large datasets of million-scale cells. Application on both simulated and real experimental datasets showed that the marker genes or genomic regions identified by COSG have greater cell-type specificity, demonstrating the superior performance of COSG in terms of both accuracy and efficiency as compared with other available methods.
N
6-methyladenosine enhances post-transcriptional gene regulation by microRNAs
Authors: Kanoria Shaveta , Rennie William A , Carmack Charles Steven , Lu Jun , Ding Ye 
Published: January 2022

Abstract

Motivation
N 6-methyladenosine (m6A) is the most prevalent modification in eukaryotic messenger RNAs. MicroRNAs (miRNAs) are abundant post-transcriptional regulators of gene expression. Correlation between m6A and miRNA-targeting sites has been reported to suggest possible involvement of m6A in miRNA-mediated gene regulation. However, it is unknown what the regulatory effects might be. In this study, we performed comprehensive analyses of high-throughput data on m6A and miRNA target binding and regulation.

Results
We found that the level of miRNA-mediated target suppression is significantly enhanced when m6A is present on target mRNAs. The evolutionary conservation for miRNA-binding sites with m6A modification is significantly higher than that for miRNA-binding sites without modification. These findings suggest functional significance of m6A modification in post-transcriptional gene regulation by miRNAs. We also found that methylated targets have more stable structure than non-methylated targets, as indicated by significantly higher GC content. Furthermore, miRNA-binding sites that can be potentially methylated are significantly less accessible without methylation than those that do not possess potential methylation sites. Since either RNA-binding proteins or m6A modification by itself can destabilize RNA structure, we propose a model in which m6A alters local target secondary structure to increase accessibility for efficient binding by Argonaute proteins, leading to enhanced miRNA-mediated regulation.

Availability and implementation
N/A.