bluuebunny/crossref_metadata_2025_split huggingface dataset:
Energy efficient building in the Arctic
Authors: Arkhipov Vitaly , Nemova Darya , Petrosova Daria , Morokhoeva Viktoria 
Published: November 2019

Abstract
This article covers the topic of energy-efficient buildings belonging to the Far North and the design of such a house in these conditions. The analysis of existing energy-efficient technologies was carried out and the prospects of their application in the Arctic conditions were determined. New technical solutions have been developed to ensure the energy efficiency of buildings in the Arctic. Research methods included: theoretical study of existing energy-efficient buildings; software: Autodesk Revit to create a three-dimensional model of the building together with Austodesk Green Studio to calculate energy efficiency and Solar plugin to calculate the energy performance of solar panels. The scientific novelty of the work consists in obtaining practical recommendations for the design of an energy-efficient house located in the Republic of Sakha (Yakutia) 62 degrees North latitude and 129 degrees East longitude. The practical value of the work is to use the recommendations for the construction and reconstruction of energy-efficient buildings, geographically located in the Arctic zone. The theoretical significance of the developed model and the proposed technology for determining energy efficiency indicators will allow it to be used for further calculations.
Electrical drive efficiency improving using an adaptive neural network controller
Authors: Davydov V A , Zhiligotov R I 
Published: November 2019

Abstract
This article discusses the possibilities of improving the energy efficiency, quality and reliability of electric drive control using an adaptive neural network controller. Asynchronous motors, working in modern conditions, are under constant random effects of various kinds, and are non-linear technical objects. The use of classical methods of regulation of electric drives based on PID controllers leads to difficulties and uncertainties in the process of control, while intelligent methods based on adaptive neural controllers provide efficient energy saving in control. The efficiency of using an adaptive neural network controller in circuits with direct torque control of an asynchronous motor is considered. Described and justified the useful effect of the use of neural network controller in comparison with the control based on the PID controller. A tuned adaptive neural network controller provides an increase in the efficiency and energy saving of electric drives in industrial enterprises solving the actual problem of modern electric power industry.
Analytical-numerical method of analysis and behavioral modelling of non-linear dynamic systems
Authors: Bychkov Y A , Solovyeva E B , Scherbakov S V 
Published: November 2019

Abstract
An analytical-numerical method for solving non-linear integro-differential equation systems, that is based on the application of generalized functions, whose regular components are described by the Taylor series, is proposed. These non-linear integro-differential equation systems are applied for modelling of non-linear electrical circuits. The procedure for determining the parameters of oscillatory regimes in deterministic, non-linear, non-autonomous mathematical models with lumped parameters is described. Within the framework of the “black box” concept on establishing the input-output relationship of an object the behavioural models of non-linear compensators for a power amplifier are constructed and the results of the mathematical models comparison are represented.
Optimal free-burning AC arc model selection for electromagnetic transients in power systems
Authors: Brilinskiy A S , Evdokunin G A , Petrova A D 
Published: November 2019

Abstract
This paper provides a review of two different mathematical arc models. The first one is based on the arc diameter variation, the second one is defined as cylindrically-symmetric channel model of a vertical arc with a variable radius. The arc model based on the arc diameter was introduced for high current setup, while the channel model was implemented in software for low current experiment. Both models performed well, and the simulated curves matched with the experimental data taken as a basis. However, the model considering the arc diameter impact on its conductance requires additional parameters that should be estimated using measured data. In contrast, the channel model does not impose the use of such parameters, which makes it more flexible.
Methods of increasing the reliability of external memory of digital substation bay controllers
Authors: Lantsev D , Frolov V 
Published: November 2019

Abstract
The paper studies main technical requirements for digital substation bay controllers; substantiates the high reliability requirements for file systems running on Flash drives of such devices. An experimental test analysis of the most popular file systems for microcontrollers with limited resources with start-up systems on the STM32F407IGT6 controller have been made. The algorithm of Flash translation layer (FTL) is offered, and also its check on simulation model of the Flash drive and the experimental equipment is carried out. The results of comparing the characteristics of file systems and FTL algorithm are presented.
A group work of semiconductor resonant inverters of magnetically coupled induction systems
Authors: Dzliev S V , Abdulhakov I U 
Published: November 2019

Abstract
The paper presents the advantages of modular induction heating systems in the problems of group heating with individual power supply stations. When they are close to each other, a magnetic bond may occur between them. The paper shows the non-operability of power sources of magnetically coupled inductors. General principles of construction of noise-resistant magnetically coupled induction heating systems with individual power supply stations are given. A comparison and analysis of the stability of the power sources based on the current inverter and the voltage inverter has been carried out.
Controlled conditions of heat and mass transfer during crystallization as stimulating factors for improving the properties of metallic materials
Authors: Semyonov V I , Yu Chirkov A 
Published: November 2019

Abstract
The emergence of critical conditions in a meta-stable melt is considered under the influence of two main factors: pre-crystallization super-cooling and overcooling rate. The average density of free energy in such conditions is highly inhomogeneous. External impacts are considered as factors controlling the properties of materials. The solidification of the overcooled meta-stable melt is considered in a quasi-chemical approximation, assuming a transition state corresponding to an ideal solution type system. The finite time of existence of the meta-stable state is taken into account. The dimensions of the structural cell are determined by the ratio between the rate of diffusion and heat removal. The obtained estimate of the structure parameter is in qualitative agreement with the experimental dependence.
The influence of supercooling of the main condensate at the outlet of the condenser on the operation of a cogeneration steam turbine plant
Authors: Shempelev Alexander , Iglin Pavel 
Published: November 2019

Abstract
The article considers the issue of the influence of supercooling of the main condensate on the performance of a steam power plant. We describe the calculation method for a steam turbine condenser. Based on the mathematical model of a condenser, we propose a method for calculating supercooling degree of the condensate on its bottom with different air inflows in a turbo unit vacuum system. The degree of the condensate supercooling on the condenser bottom during the operation of the turbine unit in the heat and electricity production mode is determined in the example of the T-110/120-130 UTZ turbine unit. It is shown that an increase of air inflow into the vacuum system by four times leads to an increase in supercooling of the condensate from 3.5 to 11°C. It has been established that an increase in the condensate supercooling leads to additional heat losses of up to 1.100 kW in the turbine unit per a cycle in the power production operating mode and up to 500 kW per a cycle in the heat production mode.
Study of deformations depending on the influence of the reinforcing filler of the metal-based composite material
Authors: Arkhangelskaya Ekaterina , Safonova Maria , Syromyatnikova Aytalina , Fedotov Andrey 
Published: November 2019

Abstract
Metallic materials are reinforced by evenly distributed dispersed particles of various dispersities. We have studied deformations depending on the influence of ultrafine particles of the filler on the physical-mechanical properties and structure of the composite material. The 27.9% increase of modulus of elasticity and the limit of proportionality compared to that for a simple metal bond is explained by the formation of a strong adhesive bond at the interface due to the high specific surface and irregular particle shape which contribute to an increase in adhesion when filling irregularities by the liquid phase.
Combined-cycle gas turbine plant based on steam-turbine unit and a parallel superimposed gas-turbine plant with waste heat recovery boiler
Authors: Fomin V , Kalyutik A 
Published: November 2019

Abstract
We present a schematic diagram and the results of calculations of operating modes of the combined-cycle gas turbine plant (CCGTP) with a parallel superimposed gas-turbine plant (GTP). It is shown that at part-load operation in order to increase the efficiency of the unit, it is advisable to alter the steam turbine power while remaining the gas turbine power constant.
Selection of design parameters of automatic ring valves of reciprocating compressors
Authors: Kotlov A A 
Published: November 2019

Abstract
One of the main tasks at designing and operation of reciprocating compressors is provision of energy efficient and reliable operation of the automatic valves. Imposed to the automatic valves is a number of requirements (low gas-dynamic impedance to valve flow, timeliness of valve closing, etc.) the fulfillment of which requires multi-variant calculations in order to select efficient valve parameters for the specified operation modes. Given in the study are the results of valve design analysis depending on the compressor operating conditions (at change in the crankshaft speed) and valve parameters (at change in spring tension and maximum valve stroke).
Thermochemical processing of organic waste
Authors: Timerbaev N , Safin R , Mazarov I , Stepanova T 
Published: November 2019

Abstract
The article considers the problems of creation of new types of energy based on the processing of organic waste and methods for their transformation into gaseous, liquid and solid fuels. The technological scheme of complex processing of organic waste into liquid and solid fuels is presented. We consider the unit for organic waste processing with the possibility of generating not only electrical energy, but also a valuable product, namely an adsorbent.
Hybridization and the combination of technological solutions in small distributed energy
Authors: Afanaseva O V , Mingaleeva G R , Shamsutdinov E V , Toan N D , Nyat F D , Derevianko O V 
Published: November 2019

Abstract
In the article an exergy analysis of technological schemes of mini thermal power plants with technologies of hybridization and combination was carried out. The first technology deals with a low-power hybrid station that uses both traditional fuel (natural gas) and renewable energy sources (solar energy). The second technology deals with the combined production of energy (thermal and electrical) and by-products - activated carbon, sulfur, ash and slag materials. The values of the exergy efficiency of the considered schemes are obtained. It was concluded that the use of hybridization and combination technologies allows to increase the exergy efficiency in comparison with the typical scheme for obtaining energy at distributed energy objects.
Search for a compromise between the interests of water users while forming the operating modes of HPP cascade
Authors: Mardikhanov A , Sharifullin V 
Published: November 2019

Abstract
At present, there is no effective model of using a cascade of hydroelectric power stations in Russia, which allows equally to take into account the interests of all water users (consumers of agricultural products, fisheries, river transport, hydropower, water supply of the population and industry, etc.). The article provides a description of the developed methodology and software for optimizing the operating modes of a hydroelectric power station cascade using the example of the Volga-Kama cascade of Russia. The developed technique has proved itself as an effective means of finding compromise solutions in the formation of the regimes of operation of the hydroelectric power station cascade.
Preparation of PVA/Chitosan samples by electrospinning and film casting methods and evaluating the effect of surface morphology on their antibacterial behavior
Authors: Nokhasteh Samira , Molavi Amir Mahdi , Khorsand-Ghayeni Mohammad , Sadeghi-Avalshahr Alireza 
Published: November 2019

Abstract
Chitosan due to outstanding properties including biocompatibility, biodegradability, nontoxicity and antibacterial activity has received considerable attention in different fields of biomedical engineering. To study the effect of morphology and topology on antibacterial activity of chitosan, two samples of PVA/Chitosan blend with the same concentration and volume ratio were prepared using electrospinning and film casting methods. To improve the electrospinability of chitosan, it was hydrolyzed by 50% V NaOH solution (95 °C for 48 h.) and PVA was used as an auxiliary polymer for electrospinning. The best electrospinning parameters for producing beadless structure were determined at a voltage of 21 kV and distance of 15 cm. Different physical and chemical characterizations of produced samples were performed using scanning electron microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR), viscosimetry, Atomic Force Microscopy (AFM) and antibacterial assay by two different bacterium strains including Escherichia coli (E.coli) as the gram-negative and Staphylococcus aureus (S.aureus) as the gram-positive bacteria. Antibacterial assays revealed higher sensitivity of E.coli in comparison with S.aureus in the two samples. Also, it revealed that nanotopography of surface wielded influence on the antibacterial activity of samples.
POINT/COUNTER-POINT—Beyond the headlines: the actual evidence that traumatic brain injury is a risk factor for later-in-life dementia
Authors: LoBue Christian , Cullum C Munro 
Published: November 2019

Abstract
Traumatic brain injury (TBI) as a risk factor for developing dementia later in life has been a subject of debate and controversy. TBI has been found to be associated with an increased likelihood for developing dementia 10–30 years later in several retrospective studies using population records. However, understanding the link between TBI and dementia requires looking beyond calculated risk estimates and delving into the association TBI has with pathological changes seen in Alzheimer’s disease and related conditions, as well as those seen in normal aging. Some individuals with TBI, notably those with more serious injuries, show evidence of AD-related pathological changes, such as tau aggregates, at a much earlier age than healthy older individuals without a history of TBI. This would suggest that some people may be more susceptible to the effects of TBI, accumulating additional pathological changes seen in Alzheimer disease and related conditions, which may synergistically and/or cumulatively interact with factors associated with aging. The strongest support to date suggests that TBI may confer an increased risk for earlier onset of neurodegenerative changes in some individuals, possibly as a function of an accumulation of additional pathological changes. While there appears to be a link between TBI and the development of dementia in group studies, the evidence to date does not suggest an association between TBI and progressive cognitive decline during normal aging nor a greater rate of decline in those with dementia. Thus, there remains much to be learned about the pathophysiology of this apparent relationship.
Estimating chain length for time delays in dynamical systems using profile likelihood
Authors: Hauber Adrian L , Engesser Raphael , Vanlier Joep , Timmer Jens 
Published: November 2019

Abstract

Motivation
Apparent time delays in partly observed, biochemical reaction networks can be modelled by lumping a more complex reaction into a series of linear reactions often referred to as the linear chain trick. Since most delays in biochemical reactions are no true, hard delays but a consequence of complex unobserved processes, this approach often more closely represents the true system compared with delay differential equations. In this paper, we address the question of how to select the optimal number of additional equations, i.e. the chain length (CL).

Results
We derive a criterion based on parameter identifiability to infer CLs and compare this method to choosing the model with a CL that leads to the best fit in a maximum likelihood sense, which corresponds to optimizing the Bayesian information criterion. We evaluate performance with simulated data as well as with measured biological data for a model of JAK2/STAT5 signalling and access the influence of different model structures and data characteristics. Our analysis revealed that the proposed method features a superior performance when applied to biological models and data compared with choosing the model that maximizes the likelihood.

Availability and implementation
Models and data used for simulations are available at https://github.com/Data2Dynamics/d2d and http://jeti.uni-freiburg.de/PNAS_Swameye_Data.

Supplementary information
Supplementary data are available at Bioinformatics online.
RaNA-Seq: interactive RNA-Seq analysis from FASTQ files to functional analysis
Authors: Prieto Carlos , Barrios David 
Published: November 2019

Abstract

Summary
RaNA-Seq is a cloud platform for the rapid analysis and visualization of RNA-Seq data. It performs a full analysis in minutes by quantifying FASTQ files, calculating quality control metrics, running differential expression analyses and enabling the explanation of results with functional analyses. Our analysis pipeline applies generally accepted and reproducible protocols that can be applied with two simple steps in its web interface. Analysis results are presented as interactive graphics and reports, ready for their interpretation and publication.

Availability and implementation
RaNA-Seq web service is freely available online at https://ranaseq.eu.

Supplementary information
Supplementary data are available at Bioinformatics online.
Effectiveness and Safety of an Inactivated Enterovirus 71 Vaccine in Children Aged 6–71 Months in a Phase IV Study
Authors: Guan Xuhua , Che Yanchun , Wei Sheng , Li Shaoping , Zhao Zhimei , Tong Yeqing , Wang Lei , Gong Wensheng , Zhang Ying , Zhao Yanting , Wu Yang , Wang Siquan , Jiang Ruiju , Huang Jiao , Liu Ying , Luo Wenhua , Liao Yun , Hu Xingzhou , Zhang Wangsheng , Dai Yong , Jiang Guorun , Min Guoping , Liu Fan , You Xijun , Xu Xingli , Li Jiahong , Li Changhui , Fan Shengtao , Hang Lianju , Huang Qiaoxin , Li Qihan 
Published: November 2019

Abstract

Background
Evaluation of a licensed inactivated enterovirus type 71 (EV71) vaccine is needed in a phase IV study with a large population to identify its effectiveness and safety for further application.

Methods
An open-label, controlled trial involving a large population of 155 995 children aged 6–71 months was performed; 40 724 were enrolled in the vaccine group and received 2 doses of inactivated EV71 vaccine at an interval of 1 month, and the remaining children were used as the control group. The EV71-infected cases with hand, foot, and mouth disease were monitored in the vaccine and control groups during a follow-up period of 14 months since the 28th day postinoculation through the local database of the Notifiable Infectious Diseases Network. The effectiveness of the vaccine was estimated by comparing the incidence density in the vaccine group versus that in the control group based upon EV71-infected patients identified via laboratory testing. In parallel, the active and passive surveillance for safety of the vaccine was conducted by home or telephone visits and by using the Adverse Event Following Immunization (AEFI) system, respectively.

Results
An overall level of 89.7% (95% confidence interval, 24.0–98.6%) vaccine effectiveness against EV71 infection and a 4.58% rate of reported adverse events were observed. Passive surveillance demonstrated a 0.31% rate of reported common minor reactions.

Conclusions
The clinical protection and safety of the EV71 vaccine were demonstrated in the immunization of a large population.

Clinical Trials Registration
NCT03001986.
Consistent habitat preference underpins the geographically divergent autumn migration of individual Mongolian common shelducks
Authors: Meng Fanjuan , Wang Xin , Batbayar Nyambayar , Natsagdorj Tseveenmyadag , Davaasuren Batmunkh , Damba Iderbat , Cao Lei , Fox Anthony D 
Published: November 2019

Abstract
While many avian populations follow narrow, well-defined “migratory corridors,” individuals from other populations undertake highly divergent individual migration routes, using widely dispersed stopover sites en route between breeding and wintering areas, although the reasons for these differences are rarely investigated. We combined individual GPS-tracked migration data from Mongolian-breeding common shelduck Tadorna tadorna and remote sensing datasets, to investigate habitat selection at inland stopover sites used by these birds during dispersed autumn migration, to explain their divergent migration patterns. We used generalized linear mixed models to investigate population-level resource selection, and generalized linear models to investigate stopover-site-level resource selection. The population-level model showed that water recurrence had the strongest positive effect on determining birds’ occupancy at staging sites, while cultivated land and grassland land cover type had strongest negative effects; effects of other land cover types were negative but weaker, particularly effects of water seasonality and presence of a human footprint, which were positive but weak or non-significant, respectively. Although stopover-site-level models showed variable resource selection patterns, the variance partitioning and cross-prediction AUC scores corroborated high inter-individual consistency in habitat selection at inland stopover sites during the dispersed autumn migration. These results suggest that the geographically widespread distribution (and generally rarity) of suitable habitats explained the spatially divergent autumn migrations of Mongolian breeding common shelduck, rather than the species showing flexible autumn staging habitat occupancy.