bluuebunny/crossref_metadata_2025_split huggingface dataset:
Integration methods of a vehicles emergency response system based on navigational units
Authors: Kholikova N , Ismailova Z , Rustamov A , Khakimov B , Mustafoeva D , Razikov N 
Published: June 2022

Abstract
Studying the state of the art of current integration methods of a car engine with the automobile mechatronic system by using neural networks to orchestrate the methods of integration of a car engine with the automobile mechatronic system by using algorithmic electronic control based on new neural networks; to formulate the methodology of electronic model control of an engine with a mechatronic adapter; to design a model enabling calculation of input-output data; to analyze results of cold and hot tests of an engine, develop methods improving tests with the help of mechatronic adapter; to reason power and torque of an engine integrated with the mechatronic adapter; conceptualize the method of assessing fuel economy and environmental performances of an engine; put forward a guidance on research application and estimate economic efficiency. The article discusses the topic of improving the safety of transportation by introducing the latest capabilities of advanced technologies. The proposed solution uses the composition of engineering networks to expand such networks as ERA-GLONASS and e Call, which allows not only to transmit additional information, but also to combine information to determine the necessary means of emergency assistance and coordinate the entire emergency response operation. The key concept of the approach is to model the cyber-physical components of the human device using collections of resources that reflect them. Services have the ability to self-regulate, which allows them to independently adapt their behavior to the context of the vehicle driver's environment.
Development of WIPO-based experimental model of radio monitoring of earth soil
Authors: Rakhimov N R , Mukhametshin V Sh , Rakhimov B N , Mirsagdiev O A , Berdiev A A , Kobishcha D I 
Published: June 2022

Abstract
The paper considers the methods, equipment and results of landslide monitoring. Monitoring systems, covering early warning of a landslide threat that may trigger an emergency, are based on registration, analysis and processing of versatile information, including geophysical surveys, regime geotechnical, hydrometeorological and seismic observations. In the monitoring process, the technology and equipment used to obtain the above-mentioned data play an important role.
Application of regenerative braking on electric rolling stock
Authors: Konstantinova M V , Varavin V I , Dagaev R R 
Published: June 2022

Abstract
This article provides an overview of ways to improve the efficiency of regenerative braking on electric rolling stock. The advantages and disadvantages of this type of braking are considered. The requirements for the electric braking system are listed. Some analysis of the work of JSC Russian Railways on the implementation of the Energy Saving and Energy Efficiency Program is presented.
Robotic control system for lower limb rehabilitation with force feedback
Authors: Khalapyan S Y , Rybak L A , Rashoyan G V , Mamaev V A , Virabyan L G 
Published: June 2022

AbstractThe paper proposes the structure of the robotic system (RS) control system with and without the patient’s force feedback, describes the conditions for using each of them. The method for improving data reliability on applied forces using strain gauge readings in the absence of patient activity was developed. The method of motivating a patient to perform “correct” movements thus “assisting” the mechanism, which consists in changing the speed of movement to create an impression that the mechanism moves due to patient’s efforts was developed. Mathematical RS model was constructed, graphs reflecting the accuracy of the specified trajectory were obtained.
Study of sensitivity and interference protection of various bearing diagnostics methods
Authors: Sergeev K O , Volkova T P 
Published: June 2022

Abstract
Due to the widespread use of bearing units with rolling bearings in ship equipment, the question of using diagnostics-in-place methods to determine their technical condition is relevant. For diagnostics, various methods of different sensitivity and interference protection can be applied. These qualities are of particular importance for diagnosing the bearing units of ship’s gearboxes access to which can be difficult, and the units themselves include several different types of bearings. The article provides materials on comparing the sensitivity and reliability of two methods for diagnosing rolling bearings: the diagnostic method based on the analysis of the envelope spectrum and diagnostic method based on shock pulses. Measurements were taken by these methods at different points of the bearing unit on the special bench, equipped with two different bearings. Previously, defects on the ring were artificially created on one of the bearings of the unit. Measurements have shown that the shock pulse method provides acceptable results only when a sensor is located directly at the point adjacent to the outer ring of the bearing. At the control points distant from the bearing location, the defect was diagnosed with an error, but the presence of a defect, nevertheless, could be determined by applying monitoring at a specific point of control. The method of analyzing the envelope allows secure detecting and identifying the defect even when a sensor is installed at a considerable distance from the bearing. The influence of the interference generated by the mounted lubrication pump is considered. The envelope spectra and the nature of their changes are provided.
Automatic technical systems for forecasting the safety level of traffic trains
Authors: Olentsevich V A , Konovalova T G , Izotova I I 
Published: June 2022

Abstract
The need to strengthen the role of JSC Russian Railways in the processes of ensuring transport accessibility of the main energy deposits and energy platforms, including on the Arctic, Sakhalin and Caspian shelves. The industrial development of the Arctic involves the intensive exploitation of hydrocarbon resources, the extraction of biological resources and, as a consequence, the development of transport and transport infrastructure. The possibility of further economic growth in the northern territories is determined by such sustainability criteria as the economic growth of territorial economic systems and the system of indicators characterizing the concept of sustainability of economic growth in the production sector, in the financial, social and transport spheres. The article presents a forecast of multilateral accounting for the East Siberian Railway, when developing probabilistic scenarios for regional development, it implies a constant expansion and improvement of forecasting tools.
Kelvin equation-based scaling model for pore-size estimation in mesoporous materials
Authors: Valeev A A , Morozova E V 
Published: June 2022

Abstract
In this paper we consider the phase equilibrium state of a fluid confined within a mesoporous controlled cylindrical pore medium. We begin with finding a meniscus shape in the limit of the smoothest curvature variation, for which the curvature radius is the only parameter to define the meniscus dimensions. Then the scaling law is established connecting the meniscus curvature and the pore radius, thus allowing us to create a one-parameter model for finding a pore radius when a meniscus curvature radius is known. Simultaneous use of the model with our previously developed one makes it possible to calculate the pore size on the basis of P/P
0 information from the adsorption isotherm.
Corrosion cracking under main pipelines stress
Authors: Khasanova A R 
Published: June 2022

Abstract
Stress corrosion cracking (SCC) or stress corrosion is one of the most dangerous types of damage in chemical, oil and gas industry, as well as in processing, nuclear, heat and power, metallurgical, shipbuilding and other industries. Corrosion cracking of pipelines under stress (stress corrosion) is the main source of emergency incidents (emergencies) mainly in gas main pipelines. This type of corrosion is widely known and very dangerous.
Study of machining accuracy in ultrasonic elliptical vibration cutting of alloyed iron alloy carbon with a germanium
Authors: Tursunbaev S , Umarova D , Kuchkorova M , Baydullaev A 
Published: June 2022

Abstract
Engineering materials refers to the group of materials that are used in the construction of manmade structures and components. The primary function of an engineering material is to withstand applied loading without breaking and without exhibiting excessive deflection. The major classifications of engineering materials include metals, polymers, ceramics, and composites. The germanium is an excellent material for infrared optical devices, whereas ultraprecision micro-machining of the germanium is difficult due to its brittleness. In Uzbekistan, alloyed engineering materials are mainly produced by the “Almalyk” plant and “Navoi” plant. Mechanical processing of these materials is one of the problems of today. The article analyzes the process of ultrasonic vibration treatment of an alloyed iron alloy carbon with a germanium alloy. Experiments were carried out in the mechanical processing departments of the plant "Almalyk". Graphs are given based on the results obtained. Based on the results of the experiment, the conclusion was given.
Method for determining and refining the interval of data collection of gas-dynamic processes by safety criterion
Authors: Bosikov I I , Labazanova S H , Malozyomov B V 
Published: June 2022

Abstract
To solve the problems of controlling the gas-dynamic processes of production areas and air distribution in the ventilation network, their mathematical description is required, which can be obtained only on the basis of a detailed study and determination of the parameters and characteristics of gas-dynamic processes and regularities of air distribution. The mathematical description of the production ventilation system is complicated by the fact that the variables that determine the state of the control system are random functions of time. Therefore, the main attention should be paid to determining the probabilities of the characteristics of aerogasdynamic processes. The mathematical description of the ventilation of the production area into static and dynamic characteristics was the basis for the development of an optimal control algorithm for the production area. The control algorithm for the ventilation of the mining area consists of subalgorithms for controlling the parameters of the mine atmosphere, primary processing of the received information, and generating control actions. Their development is possible on the basis of research and mathematical description of gas-dynamic processes and methods for controlling the parameters of the mine atmosphere. Effective control of gas-dynamic processes in production areas is possible only when considering the entire ventilation system, due to the interconnectedness of aerodynamic parameters. The task of optimal air distribution control in the network is to ensure the required airflow rates for ventilation, determined as a result of solving the first problem with minimal energy costs for ventilation.
Visualization of a Small Jet Synthetic Using a Particle Image Velocimetry and Background-Oriented Schlieren Techniques
Authors: Faruoli M , Abbruzzese G , Di Tommaso RM , Nino E 
Published: June 2022

Abstract
This work reports the results of experimental investigations carried out on a submerged synthetic jet obtained through the use of a headset speaker piloted with an appropriate sinusoidal signal at a frequency of 380 Hz. The study begins with the construction of a device that, exploiting the well-known transport properties of impacting jets, was able to improve local ventilation and the removal of excess moisture, due to the natural transpiration of human skin in people forced to assume the same position for prolonged periods such as professional drivers; bedridden patients; etc… Subjects are substantially forced to have parts of their own body in contact with fabrics and coverings that hinder the normal conditions of skin transpiration. The experimental activity was first based on the study of the structure of the synthetic jets, then moving on to the creation of a sponge mat equipped with 80 individual jets. On this sponge mat, semi-empirical tests were carried out in order to remove moisture from a fabric soaked in distilled water. The experimental investigations were first carried out using the PIV technique, and, subsequently, the synthetic jet was visualized using the Background-Oriented Schlieren (BOS) technique which allowed to test the presence of the jets, installed directly on the mattress, in a relatively simple and fast way, requiring a very simplified set-up.
Study of FBG-based optical sensors for thermal measurements in aerospace applications
Authors: Aimasso A. , Dalla Vedova M.D.L. , Maggiore P. , Quattrocchi G. 
Published: June 2022

Abstract
Optical fibers have revolutionized several technological sectors in recent decades, above all that of communication, and have also found many applications in the medical, lighting engineering, and infrastructural fields. In the aerospace field, many studies investigated the adoption of fiber optics considering the planned transition from fly-by-wire to fly-by-light flight controls. A significant feature of optical fiber is its ability to be used not only as a transmission medium but also as a basis for fiber-embedded sensors; one of the most prominent types is based on Bragg gratings (FBGs). FBGs can replace several traditional sensors, providing measures of temperature, vibrations, and mechanical deformation. Optical sensors provide many advantages over traditional, electrical-based sensors, including EMI insensitivity, ease of multiplexing on a single line, resilience to harsh environments, very compact sizes and global weight saving. Furthermore, punctual knowledge of the temperature field is essential to perform the thermal compensation of the optical sensors used for strain measurements. In this work, the authors analyzed the performance of thermal sensors based on FBGs to verify their stability, accuracy, and sensitivity to operating conditions. Two different methods of FBGs surface application have been considered (gluing with pre-tensioning vs. non-tensioned bonding). The results were then compared to those acquired using typical temperature sensors to determine the relationship between the observed temperature and the Bragg wavelength variation (i.e. the proportionality coefficient Kt). The effects on the proportionality coefficient Kt, arising from fiber pre-tensioning and thermal expansion of the structural support, were then evaluated by comparing the results obtained with the two bonding approaches.
Optical-Flow based Analysis for Range Hoods captured Flow Measurement
Authors: Tocci Tommaso , Capponi Lorenzo , Marsili Roberto , Chiavarini Francesco , Pirisinu Jacopo , Rossi Gianluca 
Published: June 2022

Abstract
The performance assessment of suction systems is a fundamental aspect in industrial field, and the quantitative estimation of their uptake is a still open challenge. This research proposes a measurement methodology for the quantitative evaluation of the steam uptake of a kitchen hood suction system through the definition of an uptake index, obtained by processing optical measurement using the Farnebäck dense optical-flow algorithm. The results and the uncertainty analysis show high reliability and consistency of the proposed approach.
On the robustness of microflown probe for the assessment of the vibro-acoustic signature: methodological and experimental aspects in a modal test environment
Authors: Carolis Simone De , Fabbiano Laura , Gaspari Antonella , Soria Leonardo , Carbone Giuseppe , D’Emilia Giulio , Vacca Gaetano 
Published: June 2022

Abstract
Potentialities of merging contact and noncontact measurement techniques for structural analyses are studied in this paper, to explore limits and advantages of classical and innovative techniques (accelerometers, Laser Doppler Vibrometer and microflowns pressure-velocity probes). The analysis refers to a previous experimental campaign, devoted to a specific test case in a modal analysis environment; this appears as a suitable and representative field of application for the goal of highlighting possible correlations to the benefit of a robust comparison among resulting indications coming from different transducers. Methodological suggestions, addressing future and more focused measurement campaign, post-processing algorithms and optimization procedures are provided in this paper. They will be used also for defining a more systematic experimental campaign to be carried in order to identify possible guidelines for both fusion of sensor indication and more complex structural characterization.
Genetic Algorithm-based control of the wake of a bluff body
Authors: Amico Enrico , Bari Domenico Di , Cafiero Gioacchino , Iuso Gaetano 
Published: June 2022

Abstract
This work reports on the application of a Genetic Algorithm (GA)-based approach to control the wake of a bluff body. The control is achieved through the actuation of four air jets placed along the edges of the model’s base. The dependence of the population size on the convergence of the genetic code was assessed, evidencing an increase of the number of elements in the population needed to learning more complex tasks. In this case, a sum of two sine waves is considered, where frequency and amplitude of each of the two sine waves are optimised.
It is demonstrated that the GA converges to a control law yielding values of the drag reduction up to 11.2% with respect to the natural case. The cost function has been defined as to minimise the drag coefficient, without accounting for the energy spent in the actuation.
The proper orthogonal decomposition (POD) applied to the fluctuating pressure signals highlights the most relevant features of the wake. The results show that in the natural case nearly 80% of the modal energy is associated with the first mode. Conversely, the forced case features a more evenly distributed energy content across the POD modes.
The analysis of the first two modes reveals that for both cases the wake is governed by the shedding phenomenon. Furthermore, the analysis reveals that regardless of the actuation conditions, the top-down shedding represents the most significant phenomenon for the wake dynamics.
Research on the Enhanced Preparation Process for Pellets with Sea Sand Vanadium Titanomagnetite Smelting in the Blast Furnace
Authors: Xing Zhen-xing , Liu Jin-Sheng , Huang Zhuang , Cheng Gong-Jin , Yang He , Xue Xiang-Xin 
Published: June 2022

Abstract
The sea sand vanadium titanomagnetite has coarse particles, small specific surface area, and great difficulty in agglomeration process. It is difficult for ironmaking enterprises to use it as an ironmaking raw material in large quantities. In this paper, the different methods were adopted to optimize the pellet performance indexes of sea sand vanadium titanomagnetite in order to increase the usage of SSO. The effects of adding ordinary iron ore powder, vanadia-titania fine powder and ball milling pretreatment of SSO on the preparation process of pellet were studied, and the performance indexes of pellet were analyzed. The results showed that the proportion of unground SSO in pellets was up to 40%. The experimental results provided some reference methods to improve the dosage of SSO.
The co-influence of hyaluronic acid and collagen on the development of an engineered annulus tissue model with bone marrow stromal cells
Authors: Chuah Yon Jin , Wu Yingnan , Chia Yan Qing , Cheong Mei Ling Shirlynn , Joshua Jun Jie Ng , Kang Yuejun , Hee Hwan Tak 
Published: June 2022

Abstract
Inveterbral disc degeneration is a significant musculoskeletal disease that brings huge burden of pain, disability, psychological and social consequences to the affected population worldwide with treatments that only alleviate the pain but does not address the underlying biological problems. For the past decades, tissue engineering of the disc has been investigated with annulus fibrosus (AF) been one of the complicated disc component to be engineered. With the limited source of annulus cells, bone marrow stromal cells (BMSCs) have been frequently investigated as a potental cell candidate to develop an AF-like tissue which often require a multi-disciplinary effort to achieve. The extracellular matrix of AF is largely make up of collagen and proteoglycan which is still unclear how these matrix proteins could influence the BMSCs towards constructing a AF-like tissue. In this study, we adopted a coiled hydrogel microfiber that resembles the micro-architecture of the native AF tissue to encapsulate BMSCs and incorporated collagen type 1 and hyaluronic acid which later demonstrated that the co-presence of hyaluronic acid and collagen could potentially regulated AF-associated biomarkers and protease expression which are critical for later development of an engineered AF tissue construct.
Novel super junction technique used in AlGaN/GaN HEMT for high power applications
Authors: Arunraja A , Jayanthy S 
Published: June 2022

Abstract
In this paper, a novel super junction technique in AlGaN/GaN HEMT is proposed and analyzed. The novel super junction is capable of splitting the potential drops to two points rather than a single point in the lateral axis (channel axis). Technology Computer Aided Design (TCAD) physical simulator is used to investigate the proposed GaN HEMT. Analyses of the simulation results, shows that the breakdown voltage of proposed AlGaN/GaN HEMT with super junction is higher than that of a conventional device. Proposed device demonstrated a breakdown voltage improvement of 26%. This is due to the reduction of peak electric field using super junction and it is evidenced in the simulation. Further, the Johnson figure of merit (JFOM) is extracted. The JFOM of proposed and conventional AlGaN/GaN HEMT are 4.89 × 1012 V s−1 and 3.79 × 1012 V s−1, respectively. The JFOM in the proposed device is improved by 23%. This improvement is mainly due to the improvement of breakdown voltage rather than cut-off frequency. Overall, the proposed device is a promising candidate for high-power applications as it can withstand higher voltages without compromising the switching-frequency.
Assessment of mechanical properties of LM13 aluminum alloy hybrid metal matrix composites
Authors: Rajamanickam Arun Kumar , V C Uvaraja 
Published: June 2022

Abstract
Aluminium LM13 alloy based hybrid particulate composites have been processed by adding boron carbide (B4C) and titanium diboride (TiB2) particles. The wt% of titanium diboride (TiB2) is varied as 0, 3, 6, 9, 12, 15 and a constant 3 wt% of boron carbide is used to prepare the composites. Stir cast route is used to fabricate the composites. The microstructures of castings are examined using computer aided image analyzer. Vicker hardness, yield strength, ultimate tensile strength and energy absorbed by the composites are examined and reported. The results show that uniform dispersion of TiB2 and B4C reinforcement phases in Al LM13 alloy. Micro hardness of composites enhanced upto 36.6% when compared to Al alloy reinforced with 3 wt% of B4C particles. Ultimate tensile strength of Al alloy is improved from 151 MPa to 192 MPa by reinforcing 15 wt% of titanium diboride particles. LM13 aluminium alloy hybrid particulate composites offers superior vicker hardness, yield strength, utlimate tensile strength and impact strength over LM13 aluminium alloy based single particle reinforced composites.