bluuebunny/crossref_metadata_2025_split huggingface dataset:
Performance and exhaust gas emission of gasoline engine fueled by gasoline, acetone and wet methanol blends
Authors: Prayogi Y , Syaiful  , Sinaga N 
Published: June 2019

Abstract
Increased motor vehicles have resulted in increased fuel consumption and emissions. Pramium fuel has an octane value of 88. Acetone 110 octane value and wet methanol 113 octane value. Mixing of premium acetone and wet methanol is expected to improve engine performance and reduce emissions. Research using gasoline engines with electronic fuel injection (EFI) systems. The results of the testing, there was a 12.62% increase in brake power. Brake specific fuel consumption (BSFC) has increased by 4.35% compared to P100. The increase in BSFC was due to the calorific value of acetone and wet methanol which was lower than the premium. The resulting CO and HC emissions have decreased. The decrease in CO emissions reached 87.5%. The lowest level of HC produced reaches 46 ppm. Mixing acetone and wet methanol into the premium can improve engine performance. It can be seen from the increase in brake power produced. Exhaust emissions are produced better. CO and HC levels have decreased.
An analysis of changes in flange surface roughness after being used to tighten a corrugated metal gasket
Authors: Nurhadiyanto D , Haruyama S , Mujiyono  , Sutopo  
Published: June 2019

Abstract
A corrugated metal gasket is not reusable once the plastic deformation has occured. Meanwhile, flange might be reusable if it has not corroded. This research aimed to find out the surface roughness and contour shape of the flange after being used to tighten the gasket. This study employed a method of measuring the surface roughness before and after the first, second, third, and fourth tightening. The flange used had a surface roughness of Ra 3.5µm, Ra 2.5 µm and Ra 1.5 µm. The measurement of surface roughness was based on the standard of JISB0601-2001. The findings show that no significant change occured on the flange surface roughness. However, the corrugated contour shape did occur in the surface roughness after use.
Model development for garment design assessing using DEMATEL
Authors: Jerusalem M A 
Published: June 2019

Abstract
Various models for evaluating the best garment design have been developed, however most of them disregard interdependence among their elements. This study aims to develop comprehensive model that consist of intrinsic and extrinsic elements for assessing garment design schemes, and take into consideration of interrelation between its elements. The Decision-Making Trial and Evaluation Laboratory (DEMATEL) was utilized for analysing a relationship between the key components for assessing garment design. The research constructed the garment design evaluation framework that consider intrinsic and extrinsic elements and interdependence elements. The model can be used as a framework for evaluating garment design with some various advantages: considering interrelations between components and influences between elements.
The evaluation of industrial assisted classes program in vocational schools in Yogyakarta
Authors: Hadi S , Rabiman  
Published: June 2019

Abstract
This research was aimed to know the attainment of industrial assisted classes program in vocational school (SMK) in the special region of Yogyakarta. This research is an evaluation model using CIPP adopted from Stufflebeam. The setting of the research is SMK in special region of Yogyakarta (DIY) which organize the program of industry class which are: SMK Muhammadiyah 1 Imogiri Bantul, SMK Muhammadiyah 1 Playen Gunungkidul, SMK Muhammadiyah Pakem Sleman, SMK Muhammadiyah 3 Yogyakarta and PT. AHM Yogyakarta. Informants in this study are the SMK Manager, Productive Teacher Motorcycle Engineering, and Honda’s Training Manager. The collection of data through observation, in-depth interviews, and documentation. Data analysis uses an interactive model from Miles & Huberman. The results of the study concluded that: (1) the evaluation of contex: SMK and industry have agreed that the minimum graduates at level I, SMK-Industri have both understood the policy and objectives of the built-in class program, SMK has prepared the standardized provisions of the industry; (2) the evaluation of input: the qualification and competence of productive teachers are in accordance with the minimum requirement of S1 and have minimum training certificate of brown level, the school curriculum has been integrated with the industry curriculum, adjustments of the learning facilities and infrastructure to industry standards is done gradually, the schedule of learning is the authority of schools and industry assist scheduling for field work program and industry visit program; (3) the evaluation of process: the industry help the preparation of learning materials, training, the provision of places of visit and fieldwork practices of industry, industry monitoring and supervision, the industry conduct the test of competency; (4) the evaluation of the product: 60% of the industry workforce partners come from the industrial assisted classes program graduates, the granting of aid to students who are going to entrepreneurship.
Island model with genetic algorithm for solution of crystal structure from X-ray powder diffraction data
Authors: Zaloga Aleksandr N , Burakov Sergey V , Yakimov Igor S , Gusev Konstantin A , Dubinin Petr S 
Published: June 2019

Abstract
In this paper, we consider the problem of the study of polycrystalline substances: restoration of a substance atomic structure by full-profile analysis of powder diffraction data. This task is specific since it is not necessary to find very good solutions on average, but it is necessary to find the best one at least sometimes. To solve this problem, it is proposed to use an evolutionary algorithm based on the cooperative island model. The article describes the main stages and features of the algorithm and notes the qualitative advantages of this model in comparison with other methods (including evolutionary). The description of innovations proposed and the results of computational experiments are given. Conclusions from the experimental results are given, and further prospects for improving the efficiency of this method were noted.
Synthesis and research of polyaluminosilicate chemical structure influence on properties of dielectric layers received by 3D aerosol printing
Authors: Ivanov A A , Polyushko V A , Khomyakov A Yu 
Published: June 2019

Abstract
Polyaluminosilicates with different chemical structures have been synthesized. They have been experimentally studied and a priori estimated. Dielectric ceramic layers have been obtained by means of 3D aerosol printing and studied with the use of synthesized polyaluminosilicates and highly dispersed powder of Al2O3 ceramic filler.
Method of creation and verification of the spacecraft onboard equipment operation model
Authors: Kulyasov Nikita , Isaeva Olga , Isaev Sergey 
Published: June 2019

Abstract
This article represents the method of creation and verification of a simulation model consisting of graphical structure duplicating the elements of spacecraft onboard equipment and the knowledge base describing the methods of its function. The authors have developed software tools for model building and verification with the help of visual components converting formal description of the model and the knowledge base into interactive graphical images of infographics. The method can be used at any stage of onboard equipment designing, however it is most efficient at the initial stages.
Modelling the behaviour of longitudinal shear cracks in a two-layer elastic strip
Authors: Borisova N L , Loktev A A 
Published: June 2019

Abstract
The study is devoted to the urgent question of forecasting the development of defects in the form of cracks in a two-layer elastic material, which affect its strength and durability. The results will allow us to simulate the occurrence and behaviour of the defect from the insufficient strength of the material, as well as to formulate the optimal operating conditions for the two-layer material. Given analytical expressions will let to see the effect of various parameters of the initial state on the development of a defect in the form of a crack of a longitudinal fracture.
Structure and mechanical properties of laser-arc hybrid welding of 13Mn6 steel welded with austenitic filler
Authors: Vorontsov A V , Utyaganova V R , Chumaevskii A V , Gurianov D A , Ivanov A N 
Published: June 2019

Abstract
In this article low-alloy structural steel 13Mn6 is welded by hybrid laser-arc welding. To increase the homogeneity of the weld metal during welding, an austenitic filler wire was used. To find out the working characteristics of the joint obtained by the HLAW method, metallographic studies were carried out, the microhardness of the welded joint was measured, tests for static tensile strength and static bending were carried out, and fatigue properties of the joint were also investigated. HLAW with the use of austenitic wire can positively influence the properties of the welded joint. In addition, when welding parameters vary, there is a possibility of penetration of the filler material to the entire depth of penetration, as well as to some partial value of its penetration. The article considers the principal possibility of joining heterogeneous materials on the example of 13Mn6 and 308SS steels.
Proactive management of the design and development processes of interactive electronic maintenance and repair documentation for aircraft
Authors: Frolova E A , Ivakin Ya A , Semenova E G 
Published: June 2019

Abstract
The article deals with the quality management of interactive electronic technical manuals on the operation and repair of aircraft. It has been established that the quality management tools for interactive electronic maintenance and repair documentation for aircraft do not fully satisfy the existing set of specific requirements for the technological process of their design and development, as well as the implementation of proactive quality management procedures in it. This suggests a lack of scientific, methodological and technological security of quality systems in the design and development of interactive electronic maintenance and repair documentation for aircraft. The quality management of interactive electronic technical manuals for the operation and repair of aviation equipment is a sequential process of iterative procedures for evaluating and improving the quality of the specified information and software tools for logistics support.
Application of numerical simulation systems when using composite materials used in additive production
Authors: Chabanenko A V , Kurlov A V , Smirnova A S , Getmanova G V , Gulevitskiy A U 
Published: June 2019

Abstract
Composite materials are widely used in modern production processes. Polymer composite materials, especially from the ABS group with different physical and mechanical properties have great potential in the field of electronic industry. To date, additive technologies are actively used, which requires a new approach to modeling the physical properties of various polymers, passing into a new state at the time of homogenization. For products made of polymeric materials with the use of additive technologies is characterized by the dependence of the final mechanical properties not only on the design, but also on the technological modes of manufacture, as in the manufacturing process is formed by a complex spatial structure of the layers, which leads to heterogeneity of the properties of different parts of the product. The structure of polymers is related to the properties of the final product and the level of quality.
Defining free damped oscillation in technological systems
Authors: Ershov D Y , Lukyanenko I N , Smirnov A O , Aman E E 
Published: June 2019

Abstract
The paper reviews approaches to defining free damped oscillation in mechanical drive of the technological equipment based on identifying the intrinsic oscillation frequencies given the Rayleigh dissipation function under non-linear dynamic effect. It presents a mathematical model for damped oscillation accounting for dissipative forces and their effect on the system vibration activity.
Field-work automation of hydrocarbon exploration using a passive seismic-electric method
Authors: Shaydurov G Y , Potylitsyn V S , Kudinov D S , Maikov O A 
Published: June 2019

Abstract
The paper proposes to exclude the active source of the seismic field from the measurement scheme, which is often a massive truck with equipment installed on it, which in its turn makes it difficult and increases the cost of field-work. The proposed passive measurement installation allows the detection of hydrocarbon deposits by registering the natural fields of the Earth. All measurements can be carried out by one person due to the use of magnetic antennas. A method of field measurements by means of such installation, as well as measurement data on a real gas condensate field are presented.
The determination of the optimal profile line of stator arc in the double-acting wing pumps
Authors: Mikhashchenko T N , Gavrilchik M V , Bogolyubov D A 
Published: June 2019

Abstract
In the article there are results of the study of correction mechanism of the stator guide of the double-acting wing pumps. Software application has been developed and tested, it allows determining optimal profile line of stator arc of worn-out pump on the basis of spline interpolation, on condition of preservation and improvement of functional characteristics of the double-acting wing pump. As a result of theoretical and practical experiments the number of double-acting wing pumps has been repaired, their characteristics have been improved. The enterprise has managed not only to save money resources on the repair of wing pumps but also to get a significant profit after the realization of goods.
Methods and approaches to improving the design of flexible backing grinding tools
Authors: Shatko D B , Lyukshin V S , Shutko L G , Strelnikov P A 
Published: June 2019

Abstract
Grinding with flexible backing grinding tools, such as flap wheels and grinding belts, has found wide application at all stages from roughing to decorative surface finish. At the same time, the performance of traditional factory-built flap wheels and grinding belts in many respects do not meet the expectations of consumers. Among other reasons, this is due to the fact that the designs of flap wheels and grinding belts are based on traditional sandpaper. In turn, the sandpaper is made from abrasive mass which is not sorted by shape and not oriented relative to the backing plate surface. The described situation leads to the fact that a large number of grains does not participate in the cutting process, but on the contrary, have a negative impact on it, because the abrasive particles fall out of the bond, heat and deform the material to be ground without cutting it off. The approaches to improving the design of flexible backing grinding tools are discussed, the issues of their design and manufacture using the abrasive grains with controlled shape and orientation are revealed in the article. The data on the impact of the grain shape and orientation on the cutting ability of grinding belts are given.
Three-dimensional stacking IC packaging technology for NAND-flash memory
Authors: Perminov V V , Putrolaynen V V , Shtykov A S , Yartsev A V 
Published: June 2019

Abstract
The article presents the technology of three-dimensional multi-chip packaging and testing of NAND memory module implemented at GS Nanotech in collaboration with Petrozavodsk State University. The main technological operations and quality management methods at each stage of memory modules manufacture are described. These memory modules can be used for solid-state drives production.
Two-point calibration of coating thickness gauges: what needs to be considered to improve measurement accuracy
Authors: Sekatskii V S , Gavrilova O A , Merzlikina N V , Pikalov Yu A , Pikalov Ya Yu , Kaposhko I A 
Published: June 2019

Abstract
It is shown that, unlike other means of measuring linear dimensions, coating thickness gauges do not have a regulatory framework governing their accuracy (error). It is noted that a number of external factors influence the reliability of the results of coating thickness measurements. Using the example of coating thickness gauges, the difference in the measurement results for two-point and zero calibration is shown.
Automation of water distribution management during the reconstruction of main irrigation canals
Authors: Tkachev A A , Ivanenko Yu G , Zarubin V V , Olgarenko I V 
Published: June 2019

Abstract
Canal automation allows increasing the efficiency of projects for the reconstruction and construction of irrigation systems. Modern technological and technical advances make it possible to regulate the flow of irrigation water at all levels of the system more accurately. The basic requirements for water accounting and water metering systems implemented on irrigation systems are applicable only to the conditions of water distribution static regulation. This is primarily due to the use of water-accounting and water-measuring devices developed and used in conditions of steady-state water flow, when there is an unequivocal relationship between the depth and water flow on the rise and on the decline of levels. Using world experience in connection with new achievements in the field of management theory research, it is necessary to consider how and when to implement automation of water distribution management in the context of reconstruction and construction of irrigation main canals. In addition, practical recommendations on other aspects of channel automation should be taken into account, including the dynamic nature of the system; irrigation infrastructure survey; use of SCADA-systems; improving the concept of water distribution management using automatic control methods.
Automation and robotics in the context of Industry 4.0: the shift to collaborative robots
Authors: Galin Rinat , Meshcheryakov Roman 
Published: June 2019

Abstract
This paper describes the role and place of collaborative robotics of industrial automation in the context of rapid industrial development. Collaboration of humans and robots in close proximity in a single work space is a stimulating feature of Industry 4.0. Urgent research issues in the field of industrial robotics include problems of developing safer robots in human-machine interaction systems. Due to the close collaboration between humans and robots, many of the problems of industrial robotics are associated not only with technical issues, but also with social aspects. Optimization and automation of production through the introduction of robotic solutions is widely used. In future it will become the basis of all business processes.
The method of compensation for deviations of ship pipeline routes
Authors: Ngo G V 
Published: June 2019

Abstract
In the article, the authors examine the problem of enhancing the technological features of ship’s pipeline systems at the designing stage. Moreover, it introduces the solutions for questions of ship pipeline’s manufacturing and assembling without measuring the actual size of the ship. The possibility of using the rotating method for paralleling pipe sections simultaneously with technical operation of removing the technical allowances of the pipelines is taken into consideration to fully compensate the total deviations of pipelines routes, which was arisen not only in process of pipes’ manufacturing but also in hull, mechanisms, and equipment’s assembling. An algorithm for determining the compensation level of the pipeline route is established. Based on the results of the researching process, the method to determine the compensation possibilities of pipeline routes and values of technical allowances is established, which was appointed on fitting pipes for expansion in the compensation field in possible directions. The author presents the method of pipeline displacement by using the rotation method to rotate the parallel sections of the pipelines for compensating total deviations, and the technology of assembling the pipeline systems from prepared pipes, which was produced by designing information without measuring the actual size of the ship.
Dynamic method for controlling dynamic viscosity of liquid
Authors: Egorov A V , Veselov E A , Belogusev V N , Kozlov K E , Lysyannikov A V , Zelykevich R B , Kaiser U F 
Published: June 2019

Abstract
The purpose and objectives of the work are to develop scientific and technical bases and experimental testing of the dynamic method of control of the dynamic viscosity of liquids located directly in the pipeline on the basis of angular accelerations of the body immersed in the liquid. The developed method of control of the dynamic viscosity of liquids allows to take into account the uneven supply of mechanical energy from the drive motor of the rotary viscometer based on the assessment of the dynamics of the motion of the body immersed in the liquid. The developed method of control of dynamic viscosity of liquids is based on the proven positions of theoretical mechanics, dynamics of rotational motion, the theory of machine parts and is a logical continuation of the development of rotational methods of control of viscosity of liquids. The results of experimental testing of the developed dynamic method of control of the dynamic viscosity of liquids suggest the adequacy of the developed approaches. As a result of experimental studies of motor oil G-Energy 10w-60 on the basis of the developed dynamic method revealed the ratio of dynamic viscosities at temperatures of 100 ° C and 40 ° C, which was 6,7. Application of existing methods of control of viscosity of G-Energy oil at temperatures of 100 ° C and 40 ° C gives the ratio of dynamic viscosities 6,8. The discrepancy between the results of the dynamic method of control of the dynamic viscosity of the liquid and the control results obtained by known methods of control of the dynamic viscosity of liquids is about 1%.
New approaches to dynamic evaluation of quality indicators
Authors: Barkalov S A , Moiseev S I , Hodunov A M 
Published: June 2019

Abstract
The paper proposes a mathematical model for evaluating time-varying quality indicators of an arbitrary nature. The model is based on the Rasch’s method of estimating latent variables. Cases of single-criterion and multi-criteria evaluation are considered. The obtained estimates are measured on a linear interval scale and do not depend on a set of indicators, time periods and evaluation criteria. Comparison of results with traditional assessment methods.
Parametric identification of the organizational maturity management system
Authors: Dorrer Mikhail 
Published: June 2019

Abstract
The article describes the solution of the problem of constructing a mathematical model that describes the behavior of indicators of the level of maturity of a company’s business processes as a dynamic management system. This work was carried out in the course of solving the problem of developing a system for managing the level of maturity of the enterprise’s business processes. The set of maturity indicators for a company’s business processes is described as a dynamic model in discrete time of a control system in a deterministic formulation. The identification of the parameters of the dynamic model is made on the basis of the data on the maturity of the company’s business processes collected at the operating machine-building enterprise. It is shown that a dynamic model of a control system in discrete time in a deterministic formulation adequately describes the behavior of a system of indicators of the maturity of a company’s business processes. The resulting model reproduces the available experimental data on changes in the levels of organizational maturity in the company. It shows plausible behavior when predicting a process based on various input data in a real-world expected range of input parameters.