bluuebunny/crossref_metadata_2025_split huggingface dataset:
Electrophysiological assessment of plant status outside a Faraday cage using supervised machine learning
Authors: Tran Daniel , Dutoit Fabien , Najdenovska Elena , Wallbridge Nigel , Plummer Carrol , Mazza Marco , Raileanu Laura Elena , Camps Cédric 
Published: November 2019

AbstractLiving organisms have evolved complex signaling networks to drive appropriate physiological processes in response to changing environmental conditions. Amongst them, electric signals are a universal method to rapidly transmit information. In animals, bioelectrical activity measurements in the heart or the brain provide information about health status. In plants, practical measurements of bioelectrical activity are in their infancy and transposition of technology used in human medicine could therefore, by analogy provide insight about the physiological status of plants. This paper reports on the development and testing of an innovative electrophysiological sensor that can be used in greenhouse production conditions, without a Faraday cage, enabling real-time electric signal measurements. The bioelectrical activity is modified in response to water stress conditions or to nycthemeral rhythm. Furthermore, the automatic classification of plant status using supervised machine learning allows detection of these physiological modifications. This sensor represents an efficient alternative agronomic tool at the service of producers for decision support or for taking preventive measures before initial visual symptoms of plant stress appear.
Assessing the effect on the generation of environmentally persistent free radicals in hydrothermal carbonization of sewage sludge
Authors: Zhu Yuhan , Wei Jia , Liu Yitao , Liu Xiaohui , Li Jun , Zhang Jing 
Published: November 2019

AbstractEnvironmentally persistent free radicals (EPFRs) have attracted increasing research interest in recent years. Herein, the generation of EPFRs during the hydrothermal carbonization of sewage sludge (SS) was studied. First, the surface morphology, functional groups, constituent elements and free radicals were characterized for a holistic description of the raw SS and the selected hydrochar obtained from hydrothermal carbonization of SS (SHC). Then, the impact of hydrothermal temperature, residence time and initial pH on the formation of EPFRs was explored in detail through the investigation of g-factors and intensities of EPFRs identified in SHC. The results have shown that the formation of EPFRs was affected by the factors mentioned above, in which the impact of temperature is the greatest. Two types of EPFRs were spotted in the hydrochar, oxygen-centered (O-centered) and carbon-centered (C-centered) EPFRs, which were caught in 120–150 °C and 260–280 °C, respectively. Moreover, the intensities of Electron Paramagnetic Resonance (EPR) signals enhanced with increasing hydrothermal temperature. Whereas, residence time and initial pH only affected the amount of EPFRs in a manner. Additionally, the half-life of the O-centered EPFRs and the C-centered EPFRs was determined as long as 160.45 days and 401.10 days, respectively, indicating that EPFRs are stable in a long time.
Innocent Children in the Syrian Civil War
Authors: Çelikkaya Mehmet Emin , Atıcı Ahmet , EL Çigdem , Akçora Bülent 
Published: November 2019

Abstract
Introduction Our aim is to present the clinical and surgical characteristics of the children affected by the Syrian civil war.
Materials and Methods Medical records were reviewed retrospectively for Syrian war victims between the ages of 0 and 18 who were brought to the emergency department of the Education and Research Hospital between March 2011 and March 2019. Each patient was evaluated with respect to demographic data (gender, age), type of injury, history of operations in Syria, injured organ(s), accompanying traumas and the mortality and trauma score.
Results The majority of our study population of 147 patients were male (108/147, 73.46%), and 39 of the total were girls (26.53%). The mean age of the patients was 9 (7.5 ± 4). The mean age of the girls was 8.5 (range: 7 months to 16 years), and the mean age of the boys was 9.2 (4 months to 17 years). Seventeen patients who had abdominal surgery in Syria were operated on again after clinical and radiological observations. A total of 83 patients were operated on in Turkey. For 66 of those patients, the operation in Turkey was their first surgery on their war injuries. Seventeen patients were operated on in Syria but needed surgery again in Turkey.
Conclusion War affects not only the battlefield, but also the neighboring countries in many aspects such as medical, social, and economic. Hollow organ injuries are the most common intraabdominal pathologies. Delayed intervention is associated with increase mortality and morbidity.
A ligand-independent origin of abscisic acid perception
Authors: Sun Yufei , Harpazi Ben , Wijerathna-Yapa Akila , Merilo Ebe , de Vries Jan , Michaeli Daphna , Gal Maayan , Cuming Andrew C. , Kollist Hannes , Mosquna Assaf 
Published: November 2019

Significance
Synthesis of abscisic acid (ABA) and proteins required for its downstream signaling are ancient and found in aquatic algae, but these primitive plants do not respond to ABA and lack ABA receptors. The present work traces the evolution of ABA as an allosteric regulatory switch. We found that ancient PYRABACTIN RESISTANCE 1’s homolog proteins have constitutive ABA-independent phosphatase-binding activity that, in land plants, has gradually evolved into an ABA-activated receptor. We propose that ABA-mediated fine-tuning of the preexisting signaling cascade was a key evolutionary novelty that aided these plants in their conquest of land.
Pragmatic functions ofI thinkin computer-mediated, cross-cultural communication between Taiwanese and Japanese undergraduate students
Authors: Diaz Maria Angela , Lau Ken , Lin Chia-Yen 
Published: November 2019

AbstractThis study explores the functions ofI thinkin synchronous, computer-mediated cross-cultural communication of Japanese and Taiwanese university students. The data used in this study were collected from the Cross-Cultural Distance Learning corpus, which contains transcriptions of recorded synchronous spoken and written interactions between Taiwanese and Japanese university students. To examine the functions ofI think, occurrences of the phrase were screened, analyzed, and categorized based on collocation pattern, discourse context, and sequentiality. The Taiwanese students showed a greater tendency to use the various functions ofI thinkin discourse than the Japanese students, who rarely used its functions in their online cross-cultural communication. The results suggest that their respective perceived conversation strategies may be a significant cause of variation in the frequency of use ofI thinkfunctions.
Program realization of simulation tools of low-density codecs: effective architecture of a decoder for massive parallel computations on graphic processors
Authors: Bashkirov A V , Pirogov A A , Makarov O Y , Muratov A V , Beletskaya S Y , Glotov V V 
Published: November 2019

Abstract
The article deals with the peculiarities of modeling the characteristics of low-density parity-check codes (LDPC) in terms of their decoding. When decoding low-density parity-check codes in various communication standards, the iterative belief propagation algorithm (BP) and its various modifications - Pearl’s algorithm, sum-of-products algorithm - are widely used. In the article, special attention is given to this algorithm. The BP algorithm is a message-passing algorithm on a graphical model and consists of two basic messaging procedures between the nodes in the Tanner graph for LDPC code. The issues of constructing an effective architecture for an iterative decoder operating on the belief propagation algorithm in a heterogeneous system with massively parallel computing on a graphics processing unit are considered. It is shown that the use of the GPU allows to achieve a significant gain in decoding time with a sufficient size of the test matrix (a sufficient number of code and test nodes), obtained due to the parallelism of the architecture. Expressions for calculation of the size of the “working group” are given. The benefit of using a modified decoder architecture is estimated.
Digital computer protection of railway traction network
Authors: Kuznetsov S M , Pokhomchikova E O , Faizrahmanova E V , Avetisyan K R 
Published: November 2019

Abstract
The article analyzes the existing system of protection of the traction network. Key aspects of its operation were analyzed. Innovative transition to a digital level of protection was described. Recommendations for further improvement based on the results of experimental operation, taking into account the use of monitoring and increasing the level of automation of the traction network feeder control system were provided.
A method of paired zeroing of numbers in a residue system
Authors: Selivanova M V , Tyncherov K T , Ikhsanova F A , Kalmykov I A , Olenev A A 
Published: November 2019

Abstract
The paper studies the problem of determining the lower boundary of number correction speed in computing systems operating in the basis of non-positional arithmetic of residual classes. The topicality of the problem is necessitated by the search of methods allowing reducing the time for digital processing of signals in non-positional neuroprocessors. The study considers several variants of error correction with a single and multiple control bases of the residue system. The calculations were performed that allowed determining the time necessary for zeroing operation. The method of paired zeroing of numbers in a system of residual classes was modified. It was demonstrated that the suggested solutions allow appreciably reducing the time consumption by digital processing of signals in neuroprocessors destined for operations of summation and multiplication.
Numerical simulation of the oil reservoir with regulated disturbances. Oil recovery stability simulation
Authors: Batalov S A , Andreev V E , Lobankov V M , Mukhametshin V Sh 
Published: November 2019

Abstract
The article discusses a direction for improvement of the oil recovery stability simulation method. It is shown that the problem of stable productive layer development is solved by setting appropriate goals. To solve the first task, it is necessary to substantiate RFC plugging in the hard mode. The main calculated ratio is the modified Dupuis-Forchheimer and Bernoulli equations based on linear hydraulic resistances of the RFC. To solve the second task, it is necessary to substantiate the choice of resonant frequencies of the oil recovery process in the elastic water-pressure mode. The dependences allow us to distinguish the upper and lower limiting frequencies of the stable oil displacement mode. The solutions make it possible to isolate main conclusions in a complex form.
Hybrid algorithms of the person identification by face image
Authors: Fazilov Sh Kh , Mirzaev N M , Radjabov S S , Mirzaeva G R 
Published: November 2019

Abstract
In this paper, the problem of constructing hybrid algorithms for identifying a person (IAP) by the image is considered, which is the main one in the development of biometric systems based on them. To solve this problem, we propose a model of algorithms, consisting of the following stages: selection of the area of the face in the image; searching pupils on the face image (FI); determining the location of the mouth and nose; forming a set of geometric features; allocation of subsets of strongly coupled features; the definition of representative features in each subset of strongly related features; interim assessment for the FI class for each set of representative features; estimate for the FI class for all intermediate estimates. A distinctive feature of the proposed hybrid algorithm (HA) is the integration of the results of various methods for determining anthropometric points at the level of calculating the final score for each class of facial images. The main purpose of this paper is to develop an algorithm for integrating various methods of identifying features when IAP on a FI.
Computer modelling of a floor heave in coal mines
Authors: Ilinets A A , Sidorenko A A , Sirenko Y G 
Published: November 2019

Abstract
The paper presents results of numerical modeling of the longwall gateroad floor heave in the Taldinskaya-Zapadnaya-2 mine. The research is conducted using the finite element method. The research has shown that the floor heave can be reduced when using the relieve slots which are cut in two areas. The reasons and the mechanism of a floor heave of entries are considered. Influence of the major geological and mining factors is revealed. Recommendations about decrease in heave in entries of coal mines are made.
Differential-difference method to solve problems of hydrodynamics
Authors: Khujaev I , Khujaev J , Eshmurodov M , Shaimov K 
Published: November 2019

Abstract
Mathematical modelling of stationary processes of heat transfer, the problem of the current function in fluid mechanics and a number of other objects leads to the Poisson equation. The solution of multidimensional Poisson equations using various approximation schemes is usually brought to sweep methods or to problems of establishment, for which fictitious time is introduced. When solving two-dimensional problems of hydromechanics, the main part of the required machine time is spent on solving the equation of the current function, which has the form of the Poisson equation. When solving this problem, you can use the differential-difference method and with this eliminate the stage of matching the results of the sweep along different coordinate axes. In this paper, an algorithm based on this method, is proposed. The core of the differential-difference method is the diagonalization of the matrix equation using eigenvalues and vectors of the main three-diagonal transition matrix from differential to finite-difference operators. Twice applying the method of lines for a two-dimensional problem, solutions of the problem for new variables are obtained, which are linear combinations of the original grid unknowns. A formula for the reverse transition to the original unknowns is presented. The efficiency and accuracy of the algorithm for solving elliptic equations with stationary and non-stationary right-hand sides are proved using a number of test problems as examples.
The mathematical modelling of the land resources mass evaluation in agriculture
Authors: Pavlova V A , Sulin M A , Lepikhina O Yu 
Published: November 2019

Abstract
The article is devoted to the development of the mathematical model of mass (cadastral) evaluation of agricultural land plots belonging to the agricultural organizations located in the Leningrad Region. On the basis of the initially selected composition of the cadastral value pricing factors, by applying the expert method of Analytic hierarchy process, the most significant ones were identified. Using the Pareto method, the factorial indicators were ranked according to the degree of their influence on the value of land. As a result of the research, the evaluative model of the cadastral value of agricultural land was constructed and tested according to the main indicators of the modeling quality.
Modeling of a solar radiation flow on an inclined arbitrarily oriented surface
Authors: Musta L G , Zhurov G N , Belyaev V V 
Published: November 2019

Abstract
Knowledge of the radiation components incoming at a surface is required in studies of climate and renewable energy technologies. An algorithm for calculating the flux of solar radiation on variously oriented and inclined surfaces is proposed. The algorithm is based on Voeikov Main Geophysical Observatory model. The model deals with such gases as H
2
O, CO
2 И O
3, which absorb radiation in the UV and visible regions of the spectrum. This model takes into account direct solar radiation, diffuse radiation from the atmosphere and the earth’s surface coming on horizontal surface only. The main goal of the work is to develop a flow calculation algorithm for variously oriented surfaces. Good results are obtained, differences in values of direct and diffuse solar radiation between modeling and experience data do not exceed 10%, which is quite satisfactory for engineering calculations. In this paper emphasis is on implementation on calculating the flux for actual state of an atmosphere, including the effects of anthropogenic and man-made pollution.
A study of decision tree application in the problem of accounting for non-insured periods of a pensioner
Authors: Naykhanova L V , Buldaev A A , Ausheeva N N , Naykhanova I V , Haptahaeva N B 
Published: November 2019

Abstract
The article is devoted to the study of machine learning algorithm “decision Tree” for solving the problem “Accounting for non-insured periods”. In pension legislation, there are problems that required a large amount of combinatorial calculations. These include the problem of “Accounting for non-insured periods”. To solve similar problems, machine learning methods should be suitable. To implement the algorithm, training and test samples are created by means of a random number sensor. However, studies have shown that the use of this method gives satisfactory results, but not acceptable for this task. The authors conclude that it is necessary to investigate other, more complex machine learning algorithms, or to find a new dependence of the output variable on the input variables. This dependence is probably to be nonlinear that will determine a choice of a new method of machine learning.
Forecasting a sharp change in traffic intensity by analysis of the third derivative of growth function of incoming requests
Authors: Goichman V Y , Levakov A K , Sokolov N A , Nikolaeva M V 
Published: November 2019

Abstract
The article proposes a method for predicting sudden changes in the intensity of traffic entering a switching node. It is based on monitoring the nature of the input process third derivative, which is usually specified by the number of incoming requests per unit of time. If obtaining an analytical expression for the function of incoming requests is not possible, then the change in the finite differences of the third order should be controlled. The method used is an example of interdisciplinary approach, since an analogue of the third derivative in kinematics is the process called “jerk”. The proposed approach allows predicting a sharp increase in traffic and making decisions to support an acceptable quality of service. In particular, the control of the third derivative can be used in conjunction with the procedures of hysteresis control and algorithms for restricting traffic, which increases dramatically with the response of telecommunication network subscribers to extraordinary events.
Comparative analysis of modelling methods of the tunnel construction harmful effect
Authors: Novozhenin S U , Bogdanova K A , Kempler A K 
Published: November 2019

Abstract
The article presents a comparative analysis of the results of mathematical modeling of horizontal tunneling in the Plaxis 3D software package. Two main ways of modeling the tunnel lining were considered: models based on volumetric elements and using the Plate tool. An analysis was made of the distribution of displacements and deformations on the surface: subsidence, inclinations, curvature, horizontal deformations. Comparison of the maximum strain values showed an insignificant deviation (approximately 5%), which proved the applicability of the two models. For further work, a method using the Plate tool could be recommended as being more suitable in the case of complex models with a large number of intersections.
Study of the relationship between time and traffic flow on motorways
Authors: Pechatnova E V , Kuznetsov V N 
Published: November 2019

Abstract
Mathematical modeling of traffic flow is necessary for development of the Intelligent Transportation Systems, increase in the efficiency of preventive road safety measures, as well as road maintenance planning. The paper presents the results of mathematical modeling of traffic flow on motorways. It bases on data analysis obtained from traffic sensors. In previous studies, a model was obtained for predicting the traffic volume on the roads of the suburban area. However, it is not fully suitable for the assessment of similar processes on the roads outside settlements. The multiplicative model is adopted as the basis. The graphic patterns of the traffic flow distribution, depending on the hour of the day and the day of the week, are given. It bases on the data of traffic flows from the A-322. As the result of approximation, functional dependences in the form of periodic functions were found. The adequacy of the model is evaluated by comparing actual and model data. The results indicate applicability of the proposed model for traffic flow forecasting on any sections of motorways.
Syntactical analysis of context-free languages taking into account order of application of productions
Authors: Kishkan V V , Safonov K V , Tsarev R Yu 
Published: November 2019

Abstract
The article sets the task of syntactical analysis of monomials of context-free languages taking into account the order of application of productions in the process of outputting monomials. An attribute model of the process, which defines the description of the process being modeled as business process models, correlates with the level of context-free languages. The business process, presented in the form of a structural model, uses the alphabet and syntax of a specific modeling language, which allows the process to be described independently of the subject area. The problem of syntactical analysis is supplemented as follows. Developing a deadlock algorithm to determine whether makes is possible to obtain a monomial from the initial symbol using the productions of a given context-free language. Determining the choice of productions and number of times was used to derive this monomial and establish the order of using these productions. The article proposes the completed method of monomial labels which allows establishing the order of application of productions. Based on this method, research technologies of programming language that are of interest to the software industry can be developed.
Consideration of the effectiveness of cryotherapy for different thicknesses of the skin using numerical modelling
Authors: Yerezhep D , Yemelyanov A , Kuznetsov Y , Perminov A , Pronin V , Minikaev A , Yerezhep A 
Published: November 2019

Abstract
In this paper, a method for measuring the temperature of the integumentary tissues of a person during a general cryotherapy treatment (WBC) is considered. The authors investigated the physical processes in the device for cryotherapeutic effects on the human body (cryosauna). Also we constructed the computer model of the object of study, using the finite element method. The mathematical model allows you to calculate the temperature of the integumentary tissue during the WBC procedure and at its end. The dependence of the intensity of heat loss on the thickness of the covering tissues was studied. The Bioheat Transfer module was used, which allowed taking into account thermal effects. Recommendations on the choice of cryosauna modes are formulated. Research aims to improve the efficacy and safety of WBC due to the individual characteristics of patients.
A mathematical model of the pulsator for cleaning paraffin deposits of pipelines and downhole equipment
Authors: Zaripova L M , Gabdrakhimov M S 
Published: November 2019

Abstract
An important task for the oil industry is considered the issue of cleaning paraffin deposits of downhole and surface equipment; Xmas tree, oil gathering pipelines, oil treatment plants. As a result of the paraffin blockage, there is a decrease in oil production, an increase in pressure drop in pipelines, disruption of the normal operation of oil collection and treatment devices, the field operation itself is still difficult, therefore preventing and removing paraffin deposits with various cleaning methods is a pressing problem in the oil industry.