bluuebunny/crossref_metadata_2025 huggingface dataset:
Cheap, facile, and upscalable activated carbon-based photothermal layers for solar steam generation
Authors: Mnoyan Anush , Choi Myeongil , Kim Dong Hyun , Ku Bon-Jun , Kim Hyunjoung , Lee Kyung Jin , Yasin Ahmed S. , Nam Sungchan , Lee Kyubock
Published: November 2020

Highly efficient photothermal layers were developed based on a commercially available low-cost material, activated carbon, which demonstrates the potential for practical desalination application with upscalability.
pH-Responsive Pickering emulsion stabilized by polymer-coated silica nanoaggregates and applied to recyclable interfacial catalysis
Authors: Luo Ruidong , Dong Jinfeng , Luo Yunbai
Published: November 2020

We synthesized a diblock copolymer and grafted it onto fumed silica in the presence of trifluoroacetic acid to obtain a pH-responsive Pickering emulsion system stabilized by polymer-coated nanoaggregates, P-Si.
The valorization of municipal grass waste for the extraction of cellulose nanocrystals
Authors: Danial Wan Hazman , Mohd Taib Raihan , Abu Samah Mohd Armi , Mohd Salim Rosliza , Abdul Majid Zaiton
Published: November 2020

The production of CNCs from MGW is an avenue to convert green waste into a value-added product.
Applications oftert-butanesulfinamide in the synthesis of N-heterocyclesviasulfinimines
Authors: Philip Rose Mary , Radhika Sankaran , Saranya P. V. , Anilkumar Gopinathan
Published: November 2020

The review summarizes the usage oftert-butanesulfinamide for the construction of diverse N-heterocycles through sulfinimine intermediate over the last decade.
Dihydropyrimidinones: efficient one-pot green synthesis using Montmorillonite-KSF and evaluation of their cytotoxic activity
Authors: Farooq Saleem , Alharthi Fahad A. , Alsalme Ali , Hussain Aashiq , Dar Bashir A. , Hamid Abid , Koul S.
Published: November 2020

The general method for the preparation of DHPM analogs; cytotoxic activity and binding mode of the most active derivative against PI3Kγ and CDK2 targets.
Guest induced reversible on–off switching of elastic frustration in a 3D spin crossover coordination polymer with room temperature hysteretic behaviour
Authors: Piñeiro-López Lucía , Valverde-Muñoz Francisco-Javier , Trzop Elzbieta , Muñoz M. Carmen , Seredyuk Maksym , Castells-Gil Javier , da Silva Iván , Martí-Gastaldo Carlos , Collet Eric , Real José Antonio
Published: November 2020

Reversible switch between a robust bistable two-state room temperature spin crossover (SCO) and its transformation in a four-stepped elastically frustrated SCO due to guest inclusion in a metal–organic Hofmann framework.
Mechanistic insight of KBiQ2 (Q = S, Se) using panoramic synthesis towards synthesis-by-design
Authors: McClain Rebecca , Malliakas Christos D. , Shen Jiahong , He Jiangang , Wolverton Chris , González Gabriela B. , Kanatzidis Mercouri G.
Published: November 2020

This work uses in situ powder X-ray diffraction studies to observe crystalline phase evolution over the course of multiple K-Bi-Q (Q = S, Se) reactions, thereby constructing a “panoramic” view of each reaction from beginning to end.
Evaluating and clustering retrosynthesis pathways with learned strategy
Authors: Mo Yiming , Guan Yanfei , Verma Pritha , Guo Jiang , Fortunato Mike E. , Lu Zhaohong , Coley Connor W. , Jensen Klavs F.
Published: November 2020

Tree-structured long short-term memory neural model learns to understand the retrosynthesis design strategies from patent-extracted retrosynthetic pathway data.
Investigation on the reactivity of nucleophilic radiohalogens with arylboronic acids in water: access to an efficient single-step method for the radioiodination and astatination of antibodies
Authors: Berdal Marion , Gouard Sébastien , Eychenne Romain , Marionneau-Lambot Séverine , Croyal Mikaël , Faivre-Chauvet Alain , Chérel Michel , Gaschet Joëlle , Gestin Jean-François , Guérard François
Published: November 2020

The high reactivity of astatine and iodine in water with arylboronic acids provides access to an efficient single-step antibody radiolabelling.
The synergistic effect with S-vacancies and built-in electric field on a TiO2/MoS2 photoanode for enhanced photoelectrochemical performance
Authors: Han Jianhua , Zhang Shaoce , Song Qinggong , Yan Huiyu , Kang Jianhai , Guo Yanrui , Liu Zhifeng
Published: November 2020

Synergistic effects of S-vacancies and built-in electric field is performed for highly efficient carrier separation and transport.
Mesoporous PdAgIr nanoalloys to catalyze formate oxidation with an unprecedentedly low onset potential
Authors: Jin Yachao , Chen Fuyi , Jin Tao , Guo Longfei , Wang Jiali
Published: November 2020

A novel PdAgIr NFs/C alloy with ordered mesoporous architecture is designed as an advanced catalyst for FOR, which, for the first time, delivers a record-low onset potential, outstanding stability and impressive oxidation current density platform.
Impact of grain size on the optoelectronic performance of 2D Ruddlesden–Popper perovskite-based photodetectors
Authors: Hwang Bohee , Park Youngjun , Lee Jang-Sik
Published: November 2020

This paper presents the synthesis of grain size-controlled 2D perovskite films for high-performance photodetectors by combining solvent engineering and hot casting.
Cultural and Linguistic Adaptation of the Consensus Auditory-Perceptual Evaluation of Voice (CAPE-V) Into Hindi
Authors: Joshi Ashwini , Baheti Isha , Angadi Vrushali
Published: November 2020

Aim

The purpose of this study was to develop and assess the reliability of a Hindi version of the Consensus Auditory-Perceptual Evaluation of Voice (CAPE-V). Reliability was assessed by comparing Hindi CAPE-V ratings with English CAPE-V ratings and by the Grade, Roughness, Breathiness, Asthenia and Strain (GRBAS) scale.

Method

Hindi sentences were created to match the phonemic load of the corresponding English CAPE-V sentences. The Hindi sentences were adapted for linguistic content. The original English and adapted Hindi CAPE-V and GRBAS were completed for 33 bilingual individuals with normal voice quality. Additionally, the Hindi CAPE-V and GRBAS were completed for 13 Hindi speakers with disordered voice quality. The agreement of CAPE-V ratings was assessed between language versions, GRBAS ratings, and two rater pairs (three raters in total). Pearson product–moment correlation was completed for all comparisons.

Results

A strong correlation (
r
> .8,
p
< .01) was found between the Hindi CAPE-V scores and the English CAPE-V scores for most variables in normal voice participants. A weak correlation was found for the variable of strain (
r
< .2,
p
= .400) in the normative group. A strong correlation (
r
> .6,
p
< .01) was found between the overall severity/grade, roughness, and breathiness scores in the GRBAS scale and the CAPE-V scale in normal and disordered voice samples. Significant interrater reliability (
r
> .75) was present in overall severity and breathiness.

Conclusions

The Hindi version of the CAPE-V demonstrates good interrater reliability and concurrent validity with the English CAPE-V and the GRBAS. The Hindi CAPE-V can be used for the auditory-perceptual voice assessment of Hindi speakers.
Physical properties of the ambient medium and of dense cores in the Perseus star-forming region derived from Herschel Gould Belt Survey observations
Authors: Pezzuto S. , Benedettini M. , Di Francesco J. , Palmeirim P. , Sadavoy S. , Schisano E. , Li Causi G. , André Ph. , Arzoumanian D. , Bernard J.-Ph. , Bontemps S. , Elia D. , Fiorellino E. , Kirk J. M. , Könyves V. , Ladjelate B. , Men’shchikov A. , Motte F. , Piccotti L. , Schneider N. , Spinoglio L. , Ward-Thompson D. , Wilson C. D.
Published: November 2020

The complex of star-forming regions in Perseus is one of the most studied due to its proximity (about 300 pc). In addition, its regions show variation in star-formation activity and age, with formation of low-mass and intermediate-mass stars. In this paper, we present analyses of images taken with the Herschel ESA satellite from 70 μm to 500 μm. From these images, we first constructed column density and dust temperature maps. We then identified compact cores in the maps at each wavelength, and characterised the cores using modified blackbody fits to their spectral energy distributions (SEDs): we identified 684 starless cores, of which 199 are bound and potential prestellar cores, and 132 protostars. We also matched the Herschel-identified young stars with Gaia sources to model distance variations across the Perseus cloud. We measure a linear gradient function with right ascension and declination for the entire cloud. This function is the first quantitative attempt to derive the gradient in distance across Perseus, from east to west, in an analytical form. We derived mass and temperature of cores from the SED fits. The core mass function can be modelled with a log-normal distribution that peaks at 0.82 M⊙ suggesting a star formation efficiency of 0.30 for a peak in the system initial mass function of stars at 0.25 M⊙. The high-mass tail can be modelled with a power law of slope ~−2.32, which is close to the Salpeter’s value. We also identify the filamentary structure of Perseus and discuss the relation between filaments and star formation, confirming that stars form preferentially in filaments. We find that the majority of filaments with ongoing star formation are transcritical against their own internal gravity because their linear masses are below the critical limit of 16 M⊙ pc−1 above which we expect filaments to collapse. We find a possible explanation for this result, showing that a filament with a linear mass as low as 8 M⊙ pc−1 can already be unstable. We confirm a linear relationship between star formation efficiency and the slope of dust probability density function, and we find a similar relationship with the core formation efficiency. We derive a lifetime for the prestellar core phase of 1.69 ± 0.52 Myr for the whole Perseus complex but different regions have a wide range in prestellar core fractions, suggesting that star formation began only recently in some clumps. We also derive a free-fall time for prestellar cores of 0.16 Myr.
Is TiO emission present in the ultra-hot Jupiter WASP-33b? A reassessment using the improved ExoMol TOTO line list
Authors: Serindag Dilovan B. , Nugroho Stevanus K. , Mollière Paul , de Mooij Ernst J. W. , Gibson Neale P. , Snellen Ignas A. G.
Published: November 2020

Context. Efficient absorption of stellar ultraviolet and visible radiation by TiO and VO is predicted to drive temperature inversions in the upper atmospheres of hot Jupiters. However, very few inversions or detections of TiO or VO have been reported, and results are often contradictory.

Aims. Using the improved ExoMol TOTO line list, we searched for TiO emission in the dayside spectrum of WASP-33b using the same data in which the molecule was previously detected with an older line list at 4.8σ. We intended to confirm the molecular detection and quantify the signal improvement offered by the ExoMol TOTO line list.

Methods. Data from the High Dispersion Spectrograph on the Subaru Telescope was extracted and reduced in an identical manner to the previous study. Stellar and telluric contamination were then removed. High-resolution TiO emission models of WASP-33b were created that spanned a range of molecular abundances using the radiative transfer code petitRADTRANS, and were subsequently cross-correlated with the data.

Results. We measure a 4.3σ TiO emission signature using the ExoMol TOTO models, corresponding to a WASP-33b orbital velocity semi-amplitude of Kp=252.9−5.3+5.0 km s-1 and a system velocity of vsys=−23.0−4.6+4.7 km s-1. Injection-recovery tests using models based on the new and earlier line lists indicate that if the new models provide a perfect match to the planet spectrum, the significance of the TiO detection should have increased by a factor of ~2.

Conclusions. Although the TiO signal we find is statistically significant, comparison with previous works makes our result too ambiguous to claim a clear-cut detection. Unexpectedly, the new ExoMol TOTO models provide a weaker signal than that found previously, which is offset in Kp-vsys space. This sheds some doubt on both detections, especially in light of a recently published TiO non-detection using a different dataset.
Observational constraints on the likelihood of 26Al in planet-forming environments
Authors: Reiter Megan
Published: November 2020

Recent work suggests that 26Al may determine the water budget in terrestrial exoplanets as its radioactive decay dehydrates planetesimals leading to rockier compositions. Here I consider the observed distribution of 26Al in the Galaxy and typical star-forming environments to estimate the likelihood of 26Al enrichment during planet formation. I do not assume Solar-System-specific constraints as I am interested in enrichment for exoplanets generally. Observations indicate that high-mass stars dominate the production of 26Al with nearly equal contributions from their winds and supernovae. Observed 26Al abundances are comparable to those in the early Solar System in the high-mass star-forming regions where most stars (and thereby most planets) form. These high abundances appear to be maintained for a few million years, which is much longer than the 0.7 Myr half-life. Observed bulk 26Al velocities are an order of magnitude slower than expected from winds and supernovae. These observations are at odds with typical model assumptions that 26Al is provided instantaneously by high velocity mass loss from supernovae and winds. The regular replenishment of 26Al, especially when coupled with the small age differences that are common in high-mass star-forming complexes, may significantly increase the number of star- and planet-forming systems exposed to 26Al. Exposure does not imply enrichment, but the order of magnitude slower velocity of 26Al may alter the fraction that is incorporated into planet-forming material. Together, this suggests that the conditions for rocky planet formation are not rare, nor are they ubiquitous, as small regions such as Taurus, that lack high-mass stars to produce 26Al may be less likely to form rocky planets. I conclude with suggested directions for future studies.
General-relativistic instability in hylotropic supermassive stars
Authors: Haemmerlé L.
Published: November 2020

Context. The formation of supermassive black holes by direct collapse would imply the existence of supermassive stars (SMSs) and their collapse through the general-relativistic (GR) instability into massive black hole seeds. However, the final mass of SMSs is weakly constrained by existing models, in spite of the importance of this value for the consistency of the direct collapse scenario.

Aims. We estimate the final masses of spherical SMSs within the whole parameter space that is relevant to these objects.

Methods. We built analytical stellar structures (hylotropes) that mimic existing numerical SMS models, accounting for full stellar evolution with rapid accretion. From these hydrostatic structures, we determine ab initio the conditions for GR instability and compare the results with the predictions for full stellar evolution.

Results. We show that hylotropic models predict the onset of GR instability with a high level of precision. The mass of the convective core appears as a decisive quantity. The lower it is, the larger the total mass required for GR instability. The typical conditions for GR instability feature a total mass of ≳105 M⊙ with a core mass of ≳104 M⊙. If the core mass remains below 104 M⊙, total masses in excess of 106 − 107 M⊙ can be reached.

Conclusions. Our results confirm that spherical SMSs forming in primordial, atomically cooled haloes collapse at masses below 500 000 M⊙. On the other hand, accretion rates in excess of 1000 M⊙ yr−1, leading to final stellar masses of ≳106 M⊙, are required for massive black hole formation in metal-rich gas. Thus, the different channels of direct collapse imply distinct final masses for the progenitor of the black hole seed.
Energy of Virtual and Real Reality in Post-Crisis “Future” Projects
Authors: Plakitkin Yuri
Published: November 2020

The questions of the search for fundamental laws of development of the world energy and economy during the period of growth in the volume of virtual reality are considered. The results of calculations are presented, indicating the probable implementation of two large technological “leaps” in the post-crisis period.
Development of information and computing technologies for modelling of pipeline and hydraulic systems
Authors: Alekseev Aleksandr , Mikhailovsky Egor
Published: November 2020

The paper is devoted to the development of information and computational technologies for creating digital twins of real pipeline systems of various types and purposes. The main results of work in the direction of creating the information computing environment “ANGARA”, as a basic technology for setting up and using the information and computing environment, describe its information, computing and analytical functions is presented. The technology of information and mathematical models integration for the creation of information computing systems for pipeline systems calculating of different types is presented. The concept of enterprise unified digital space developing, as well as technologies for remote access to it, is described. The article presents an object-oriented technology of computer modelling of pipeline systems and an example of its application when creating an online application for hydraulic calculations. The technology used by the authors for testing and comparing the effectiveness of various mathematical methods for calculating the flow distribution is presented. Prospective directions of calculation technologies development related to the use of parallel computing technology are presented.
Development of Energy Systems Planning Methods
Authors: Belyaev Nikolay , Egorov Andrey , Korovkin Nikolay , Chudny Vladimir
Published: November 2020

The article is devoted to improving the methods of planning the development of an electric power system (hereinafter - EPS) for the long term. The list of tasks to be solved when planning the development of EPS, the formulation of the task of substantiating the development of EPS, and the features of its solution are considered. Within the framework of the study of the multicriteria formulation of the problem of substantiating the development of EPS, possible criteria for planning an EPS are proposed. Calculations were performed for two and four criteria. Based on the results obtained, conclusions were drawn about the prospects of a multicriteria approach to planning the development of EPS.
Prospects and problems of intellectualization of electric power systems in Mongolia
Authors: Bat-Erdene B. , Batmunh S. , Voropai Nikolai , Bat-Undral B. , Enhtur E.
Published: November 2020

Status and prospects of electric power systems (EPSs) development in Mongolia are presented. Directions and peculiarities of EPS intellectualization activity in centralized and local RPSs are suggested.
Development of Methods for Research of Electric Power System Flexibility
Authors: Glazunova Anna , Aksaeva Elena
Published: November 2020

This paper presents deterministic methods developed to study the flexibility of an electric power system. They rely on the proposition that an electric power system is flexible if power balance is maintained at a considered time. These methods are aimed at determining the combination of the largest loads, which, when exceeded a little, disturb power balance at studied nodes. The paper presents two methods: brute-force optimization and nonlinear optimization. Results obtained using the first method are taken to be a reference for verification of nonlinear optimization output.
Models for the development of multi-level gas supply systems
Authors: Ilkevich Nikolay , Dzyubina Tatyana , Kalinina Zhanna
Published: November 2020

The article shows the relevance of hierarchical modeling in substantiating the optimal development of the gas industry in modern conditions. The questions of aggregation of calculation schemes of gas supply systems are considered. A set of mathematical models is proposed that allows us to consider it at three levels of the hierarchy, taking into account the improvement, refinement and detail of the information base being developed. Models are considered: 1) optimization of the structure of gas supply systems; 2) optimization of se-zone gas consumption, analysis and synthesis of reliability; 3) optimization of parameters of the main gas-wire taking into account reliability.

The created information base on gas supply systems of the Russian Federation includes dynamics of development of demand for natural gas in the domestic and foreign markets, aggregated technical and technological, cost and reliability characteristics of system objects (main gas lines, fields, underground gas storage facilities) and forecasts of gas production.

On the basis of mathematical models, studies of the development of multi-level gas supply systems in Russia for the period up to 2030 are performed: the rates and directions of development of the gas transport structure, commissioning of new fields and optimal gas flows through the Russian Federation are substantiated. A systematic assessment of the means of regulating seasonal unevenness of gas consumption and the means of ensuring the reliability of the North-Western district of the Russian Federation was carried out.
Analysis of pricing mechanisms in a microgrid with active electric energy storages
Authors: Korepanov Vsevolod , Vaskovskaya Tatiana
Published: November 2020

A model of power market with a simple market clearing price mechanism on microgrid is considered. Market participants are consumers, prosumers with energy storage systems (ESS), and the power company as a guaranteed supplier. Prosumers charge their ESS in the first off-peak period with low prices from the power company and can decrease their demand or sell energy in the market through discharging the ESS in the second peak period. The strategic behavior of participants and their influences on a system state are postulated as the goal of work. Some use cases and model elements are discussed.
Control of Power Prosumer Based on Swarm Intelligence Algorithms
Authors: Matrenin Pavel , Manusov Vadim , Antonenkov Dmitry
Published: November 2020

The development of renewable energy and Smart Grid leads to the emergence of prosumers or power generating consumers, which are involved in the processes of bidirectional exchange of electricity and information. The work is devoted to the problem of optimal control of a power generating consumer in Smart Grid. The distinctive research features are the solution of the optimal control problem in conditions of difficult prediction of wind power plant generation, the usage of Swarm Intelligence algorithms to build a system of control rules, and the study of the obtained models on data from two different generating consumers: one on about Russky Island, the second on Popov Island (Far East). We selected a list of priority rules as a decision-making model and applied Particle Swarm Optimization, Bees Algorithm, and Firefly Optimization to build and optimize this model. The computer modeling with the usage of two mounts dataset showed that the proposed approach could significantly increase the revenue of the generating consumers considered.
NPP Unit Life Management based on Digital Twin Application
Authors: Arzhaev Alexander , Arzhaev Alexey , Makhanev Valentin , Antonov Mikhail , Emelianov Anton , Kalyutik Aleksander , Karyakin Yury , Kurakin Maksim , Lyashenko Daniil , Arzhaev Kirill , Denisov Ilya
Published: November 2020

IAEA activities on ageing management started in 1990 are a part of NPP Units life management or License Renewal as specified in national regulatory documents of member countries. Development of digital technologies makes it possible to manage lifetime NPP Unit issues in effective manner by application of Digital Twin.
Study of the formation and decomposition processes of agglomerates during fixed bed combustion of polymeric materials
Authors: Donskoy Igor , Kozlov Aleksandr , Penzik Maksim , Svishchev Denis
Published: November 2020

There are a lot of problems related with thermal utilization of municipal solid waste, including the agglomeration of fuel particles, which occurs during combustion and gasification of waste for energy production. In order to investigate the features of the agglomeration processes, experiments were carried out on melting polyethylene granules in a mixture with ceramic particles. Using a mathematical model, the characteristics of agglomeration in a fixed bed heated with a hot gas are investigated.
Natural Language Processing for Forecasting Innovative Development of the Energy Infrastructure
Authors: Kopaygorodsky Alex
Published: November 2020

The article deals with the application of natural language processing methods to support research and forecasting the innovative development of energy infrastructure. The main methods of NLP, which are used to build an intelligent system to support scientific research, are considered. Methods of building infrastructure for processing Open Linked Data and Big Data are described. Semantic analysis and knowledge integration are based on ontology system. Applying suggested methods allow increasing quality of scientific research in this area and make it more effectively
Research of A Multiagent Model of An Integrated Energy Supply System Developed in the Anylogic Software Environment
Authors: Stennikov Valery , Mayorov Gleb
Published: November 2020

The main goal of the paper is to develop and study an integrated energy supply system model in the AnyLogic software environment using a multiagent approach. Creating a single integrated system will allow: to implement new functionalities; increase reliability by improving redundancy and faster decision making in normal and emergency situations; determine the most profitable supply route individually for each consumer, based on cost and design features; participate consumers with their own energy sources in the process of energy supply of the system. The multiagent model of the integrated energy supply system was created in the AnyLogic software environment, which uses advanced technologies for modeling complex systems that will allow the most visual and detailed display of the interaction mechanisms of objects in the system and analyze the results. This study describes in detail the resulting multiagent model, its main agents, and their state diagrams. A description and analysis of an experiment conducted using this model is also provided. The results show that the multiagent model of the integrated energy supply system works correctly and performs all the specified functions.
Efficiency of solar and wind energy use in the countries of Central and North-East Asia
Authors: Marchenko Oleg , Solomin Sergei
Published: November 2020

This paper investigates the effectiveness of renewable energy sources using solar and wind energy in the countries of Central and North-East Asia. The analysis was carried out in two stages. At the first stage, the efficiency of wind and solar installations in different climatic conditions was compared by the criterion of the cost of electricity. At the next stage of analysis, an optimization mathematical model was used to study the system that simultaneously includes wind and solar installations, backup energy sources and batteries. The model takes into account system effects caused by the interaction of the system elements between themselves and with the environment. It solves the problem of mathematical programming — the search for the minimum of the objective function (total costs) at some constrains. The model is used to study the economic efficiency of the large-scale construction of solar power plants in the Gobi Desert. It is shown that the joint use of solar and wind energy gives a positive economic effect, i.e. energy cost are less than with separate use of these energy sources. Under suitable wind conditions such systems reduces the cost of electricity by more than a quarter compared to the option of using solar energy only.
Efficiency of gasification of remote boiler plants in Kamchatka with liquefied natural gas
Authors: Lachkov Georgiy
Published: November 2020

Extremely high heat tariffs and their permanent growth in the remote regions of the Russian Federation become a considerable barrier to further development of these regions. Therefore, the limitation of the heat tariff increase in the regions is an important goal of energy policy. On the example of two districts of the Kamchatka Territory, the effectiveness of gasification of remote boiler plants with liquefied natural gas is shown as a means of restraining an excessive increase in tariffs for thermal energy. A competitive price for liquefied natural gas has been determined for remote boilers in Kamchatka, and the commercial efficiency of construction of boilers using liquefied natural gas has been evaluated.
Energy Development and Energy Policy in Developing Countries in the Context of Globalization
Authors: Yatsenko O. Yu. , Bespyatova E. B. , Danoyan V. L. , Efremenko V.V.
Published: November 2020

The article is devoted to the problem of the development of independent electric power systems in elaborating countries under the conditions of growing power stuff deficit. Economic and electric-power policy that aids to active consumers’ and independent manufacturers’ formation at the world market of power manufacturing is the subject of the investigation. A separate section is devoted to the reviewing of the technologies of energy and the scientific potential of the countries, their ability to form the power agenda independently and rationally on the basis of their own stuff, technology and science resources.
The Forecasting Express-Model of the Energy Companies’ Financial State
Authors: Dranko Oleg , Maslyakova Natalia
Published: November 2020

The paper focuses on a forecasting express-model of the financial state of an enterprise. This model includes forecasting the Profit&Loss statement and the Balance Sheet of the organization. The combination of these documents allows forecasting cash flow in an indirect form. We use open data on the financial statements of individual organizations. Estimates of the cash flow deficit have been carried out both for the power generation sub-sector as a whole and for the largest power generating organizations in Russia.
A Methodological Approach to the Assessment of the Impact of Digital Technologies Development in Energy Industry on Electricity Price and Demand in a Region
Authors: Galperova Elena , Galperov Vasiliy
Published: November 2020

The relevance of this study is due to the importance of assessing the prospective dynamics and structure of demand for energy carriers when developing and making strategic decisions in the field of energy and economic security of the country and its regions. The advance of digital technology redefines the properties of electric power supply systems, erases the boundary between electric power producers and consumers, and impacts the formation of electricity price and demand in the region. This study presents a method of electricity costing in the regional power system, which serves as an integral part of the approach to assessing the impact of intelligent systems development on the demand for electricity in the region. The approach is unique in that it simulates the behavior of electricity consumers and producers of various types as they pursue their own interests and assesses the impact of this behavior on the demand and price of electricity in the regional power system. Determining the cost of electricity in the system is based on the consistent alignment of the required amount of electricity consumption with the capabilities of producers seeking to achieve their best economic performance. Each producer is described as an optimization model, which is a standalone agent in a multi-agent power system model.
Analysis of the prospects of adopting the digital technology across sectors of the economy and its impact on the demand for energy carriers
Authors: Galperova Elena , Mazurova Olga
Published: November 2020

Projections of the demand for fuel and energy resources are an essential and fundamental part of the research that underpins the process of developing and making strategic-level decisions as applied to the national and regional energy and economic security. Identification, analysis, and study of the impact of factors and interrelationships in the energy and economy on the volume and structure of the demand for energy carriers is an integral part of the methodology for long-term projections of energy consumption. The use of the digital technology related to monitoring, acquisition, processing of large amounts of data across all sectors of the economy and everyday life of the population as of now already consumes more than 5% of electricity in the world and its further growth is expected. The study analyzes the possibilities of application of individual digital technologies in various sectors of the economy. Some estimates of their impact on demand for different types of fuel and energy resources are given. We note a great deal of uncertainty in the existing estimates of future energy consumption due to the government policy in this area, changes in the lifestyle patterns of the population, and the speed of development and adoption of technology innovations.
Enhancing the safety of energy systems functioning at their digitalization
Authors: Kuznetsova Natalia , Konovalov Yuri
Published: November 2020

Informational safety threats have been analyzed for energy systems digitalization. It was established, it is impossible to completely eliminate the human factor in insuring cybersecurity of energy facilities being digitized. At the same time, a better understanding of how human actions affect reliability and safety will make it possible to predict the human factor influence and help to enhance safety of the power systems operation. The analysis of the digital transformation evelopment lines indicates that power generation companies have to move to more complex forms of digital management organization for all processes with due consideration of the human factor. Using the anthropocentric approach, the main factors that determine the reliability of IT employee ensuring functioning of energy systems during their digitalization, have been considered. A profile of the reliable employee, who is an empirically constructed set of qualitative characteristics inherent in personnel involved in the digital transformation of the power generation sector at all its levels.
Passive Filter Design for Power Supply Systems with Traction Loads
Authors: Dovgun Valery , Shandrygin Denis , Boyarskaya Natalia , Andyuseva Valentina
Published: November 2020

The purpose of the investigation is to analyze resonant modes in electric power systems that feed the traction load, to study the mutual influence of the traction network and the external power supply system. Simulation model of the power supply system with traction load, implemented with the Matlab/Simulink software package, is considered. The proposed model is used to study the influence of various parameters of the power supply system on resonant modes, including the length of lines, the short-circuit power of the external power supply system, and the spectral composition of locomotive currents. It is shown that the study of resonant modes should consider the traction power supply system and the external network as a single system. Its frequency characteristics depend on both the parameters of the traction network and the parameters of the external power supply system.

The ways to improve technical characteristics of passive filtering systems (PFS) for traction railway networks due to the sustainable choice of passive filter configurations have been investigated. Different PFS that provide compensation for voltage distortions in both the traction and external network have been proposed. They provide the suppression of powerful low-frequency harmonics and the resonant mode damping in the traction network – transformer – external network system. Broadband filters of the 3-5 orders have been proposed to control the characteristics of the traction power supply system.
Dispatch’s decision-making support during operational voltage control in control stations
Authors: Ostanin Andrey , Lotsman Dmitriy , Vasilyev Alexey , Fomenko Vladislav
Published: November 2020

Voltage and reactive power mode control is performed by dispatcher for the purpose of ensuring required reserves on steady state stability and load stability as well as permissible voltage operating conditions of electric grid equipment. The decision made by dispatcher engaged in controlling reactive power and voltage modes is founded on instructional materials developed in advance for each voltage control station (CS) with focus on data about typical modes of power system or energy area operation. The actual efficiency of reactive power compensation facilities depends on many factors (the composition and operation of grid elements, the composition and operation of generating equipment, etc.). To make final and balanced decision, in some cases, it is necessary to perform some estimation calculations, which take more time for decision making. To minimize and reduce the time required by dispatcher for their decision making and improve its accuracy when involved in voltage and reactive power mode control, it is reasonable to develop software able to determine the efficiency of reactive power compensation facilities in real time.
Effect of loose abrasive mixed electrolyte on the aspect ratio of blind holes drilled in soda-lime glass by ECDM process
Authors: Vemula Vijaya Vani , Chak Sanjay Kumar
Published: November 2020

Electro-Chemical Discharge Machining (ECDM) process has the potential to machine various features and 3D surfaces on glass. However, machining of high aspect ratio micro holes is a challenging problem in ECDM process. In ECDM process, the machining rate mainly depends on the availability of the electrolyte at the electrode tip. Machining accuracy like taper, entry and exit diameter of the hole at high depths is rigorously affected due to lack of electrolyte at the machining zone resulting in more taperness. Low surface qualities (i.e. more over cut and tapered micro holes) are few limitations of the process. To enhance the machining capabilities a novel approach of PMECDM has been conducted. Present study is mainly focused on behavior of abrasive particles while machining soda lime glass, also studied effect of process parameters on the responses such as machining depth, outer diameter and aspect ratio. Also, the study led to analyze the effect of thermal properties of abrasives on machining performance of ECDM process. The maximum machined depth achieved was 2.31 mm in 5 min, and tremendous reduction of outer diameter from 1237.37 μm to 712.8 μm. Response surface methodology has been used to plan the experiments and ANOVA has been used to analyze the impact of each process parameters on machined depth and outer diameter of the micro holes.
Behind Blue Eyes – Männer und Psychotherapie
Authors: Grossmann Konrad Peter
Published: November 2020

Immer mehr Männer nehmen Therapie in Anspruch. Häufiges Thema sind Leidenszustände, die Cochran und Rabinovitz Male Depression nennen 1 und in denen sich (exzessiver) Alkohol- und Drogenkonsum, somatische Beschwerden, erhöhte Reizbarkeit, sozialer Rückzug, aggressives Ausagieren und suizidales Verhalten oft mit Workoholismus und spielsüchtigem Verhalten vermengen. Dazu kommen oft Erfahrungen des Sich-selbst-und-anderen-fremd-Seins sowie eingeschränkte Empathie.
Männliche Formen der Depression und deren Behandlung
Authors: Walther Andreas , Seidler Zac E.
Published: November 2020

Halb so hohe Prävalenzraten depressiver Störungen und dreifach erhöhte Suizidraten bei Männern weisen auf die Bedeutung von Geschlechterrollen für die Präsentation und den Verlauf depressiver Störungen hin. Konformität zu traditionellen Geschlechterrollen führt bei Männern zu atypischer Symptomatik und erschwert die Identifikation depressiver Störungen und die Psychotherapieaufnahme. Implikationen für eine männerspezifische Diagnostik und Therapie werden diskutiert.
100 Jahre Insulin – Meilenstein der Medizingeschichte
Authors: Joergens Viktor
Published: November 2020

Am 31. Oktober 2020 war es ein Jahrhundert her, dass Frederick Banting nachts seine Idee notierte, nach Unterbindung des Pankreasgangs und Atrophie des exokrinen Gewebes bei Hunden Insulin zu gewinnen. Aber diese Idee war keineswegs neu, und diese Methode der Insulingewinnung war völlig ungeeignet, genug Insulin für die Behandlung von Patienten zu gewinnen. Schon vor ihm hatten Scott in Chicago, Zülzer und Reuter in Berlin sowie Paulescu in Bukarest Methoden zur Insulingewinnung aus Pankreata von Schlachttieren entwickelt und die Wirkung ihrer Extrakte publiziert. Nicht die unnötigen Hundeversuche von Banting und Best im Sommer 1921, sondern die Arbeit des Biochemikers Collip ermöglichte in wenigen Wochen die Gewinnung von Insulin aus Pankreata von Schlachttieren in einer Menge und Qualität, die im Januar 1922 zur erfolgreichen Behandlung von Menschen mit Diabetes führte. Aber wie schon bei früheren Jahrestagen wird die posthume Glorifizierung des Forscherpaares Banting und Best auch bei den Hundertjahrfeiern der Einführung der Insulintherapie wieder das Andenken an andere wichtige Beteiligte der Entdeckung des Insulins überstrahlen.
Planning of Plastic Surgery Practice to Say Sayonara
Authors: Saleem Lakshmi
Published: November 2020

Having seen the retired life of our professors both in general and plastic surgery and how lonely and isolated they were toward the end of their lives prompted me to discuss the retirement plans. The retirement from active surgical practice is indeed difficult and more so in plastic surgery. I feel that it needs meticulous planning for setting up a successful practice and when to say sayonara, just like treatment planning of any surgical procedure for perfect execution! At the end of M.Ch training, one should analyze oneself about the goal of the professional life and commit oneself to either a solo/group practice as an independent institutional practice or in a corporate set-up or choose a state/central government set-up with some academic position. A successful plastic surgical practice is every plastic surgeon’s dream and it comprises professional and financial successes with a sense of personal achievement. The factors involved in the selection of practice are family obligations—if parents or spouse are in medical profession with an existing establishment—individual talent, willingness to learn newer techniques, and acceptance of help from the other professional colleagues. At the same time, life needs to be balanced between the professional and family commitments without ignoring either of them with a deep social and community responsibility. But what is the correct time to say sayonara? The timing of retirement is difficult to get right, but the basic additional principle that guides one is “Primum non-nocere”—do no harm—to the receiver.
A Content Analysis of YouTube Videos Related to Hearing Aids
Authors: Manchaiah Vinaya , Bellon-Harn Monica L. , Michaels Marcella , Swarnalatha Nagaraj Vinay , Beukes Eldré W.
Published: November 2020

Abstract Background Increasingly, people access Internet-based health information about various chronic conditions including hearing loss and hearing aids. YouTube is one media source that has gained much popularity in recent years. Purpose The
current study examines the source, content, understandability, and actionability of YouTube videos related to hearing aids. Research Design Cross-sectional design by analyzing the videos at single point in time. Study Sample One hundred most frequently viewed
videos in YouTube. Intervention Not applicable. Data Collection and Analysis The 100 most-viewed English language videos targeting individuals seeking information regarding hearing aids were identified and manually coded. Data collection included general information
about the video (e.g., source, title, authorship, date of upload, duration of video), popularity-driven measures (e.g., number of views, likes, dislikes), and the video source (consumer, professional, or media). The video content was analyzed to examine what pertinent information they contained
in relation to a predetermined fact sheet. Understandability and actionability of the videos were examined using the Patient Education Material Assessment Tool for Audiovisual Materials. Results Of the 100 most-viewed videos, 11 were consumer-based, 80 were created by professionals,
and the remaining 9 were media-based. General information about hearing aids, hearing aid types, and handling and maintenance of hearing aids were the most frequently discussed content categories with over 50% of all videos commenting on these areas. Differences were noted between source types
in several content categories. The overall understandability scores for videos from all sources were 74%, which was considered adequate; however, the actionability scores for all the videos were 68%, which is considered inadequate. Conclusion YouTube videos about hearing aids
focused on a range of issues and some differences were found between source types. The poor actionability of these videos may result in incongruous consumer actions. Content and quality of the information in hearing aid YouTube videos needs to be improved with input from professionals.
Using precision farming to improve animal welfare
Authors: van Erp-van der Elaine , Rutter S.M.
Published: November 2020

Animal welfare is a multidimensional phenomenon and currently its on-farm assessment requires complex, multidimensional frameworks involving farm audits which are time-consuming, infrequent and expensive. The core principle of precision agriculture is to use sensor technologies to improve the efficiency of resource use by targeting resources to where they give a benefit. Precision livestock farming (PLF) enables farm animal management to move away from the group level to monitoring and managing individual animals. A range of precision livestock monitoring and control technologies have been developed, primarily to improve livestock production efficiency. Examples include using camera systems monitoring the movement of housed broiler chickens to detect problems with feeding systems or disease and leg-mounted accelerometers enabling the detection of the early stages of lameness in dairy cows. These systems are already improving farm animal welfare by, for example, improving the detection of health issues enabling more rapid treatment, or the detection of problems with feeding systems helping to reduce the risk of hunger. Environmental monitoring and control in buildings can improve animal comfort, and automatic milking systems facilitate animal choice and improve human-animal interactions. Although these precision livestock technologies monitor some parameters relevant to farm animal welfare (e.g. feeding, health), none of the systems yet provide the broad, multidimensional integration that is required to give a complete assessment of an animal’s welfare. However, data from PLF sensors could potentially be integrated into automated animal welfare assessment systems, although further research is needed to define and validate this approach.