bluuebunny/crossref_metadata_2025_split huggingface dataset:
Modification of the quantum grover algorithm by using the inversion method around the middle
Authors: Cherckesova L , Safaryan O , Pilipenko I , Porksheyan V , Bogdanova N , Beryoza N 
Published: December 2020

Abstract
The article proposes a modification of Grover’s quantum oracle quantum search algorithm, which makes it easier to search the database. The algorithm is implemented in the Python programming language using the Reggeti Forest cloud quantum service. The authors of the article use the mean flipping method, which solves the search problem during the iterative order √ (2 ^ n). Development offers great potential for the practical application of the Grover quantum algorithm, as it is characterized by higher performance and speed when performing research. Theoretically, the algorithm provides quadratic acceleration compared to conventional computers. It is not an exponential acceleration, but it remains important for large data carriers. The quantum parallelism of the Grover search algorithm is based on a simultaneous change in the amplitudes of all the inputs. This is done through a superposition of states, which is a purely quantum concept. In addition, the research is carried out globally, which indicates a significant improvement in optimization procedures. Grover’s algorithm, on the other hand, is sensitive to the number of iterations. The more iterations, the smaller the amplitude of the correct answer, so the wrong choice of this parameter can digest the solution. In addition, the operation of the algorithm is limited in the case of the introduction of noise into a quantum system, which is real in modern quantum computers.
Methods of cryptographically steady elliptic curves generation
Authors: Cherckesova L , Safaryan O , Razumov P , Akishin B , Chumakov V , Smirnov I , Trubchik I 
Published: December 2020

Abstract
This article is devoted to a complex study of elliptic curves and description and characteristics of it are presented. Moreover, algorithms for generating cryptographically stable elliptic properties that ensure the greatest curves are revealed. The detailed description is given, and the resistance of the elliptic curves to the different types of cryptographic attacks are determined, grounding on the comparative analysis of information security system.
Fuzzy topology and fuzzy geometry of the topological concepts
Authors: Gadjiev Djavanshir , Rustanov Aligadzhi 
Published: December 2020

Abstract
The typical approach to analyze the images in terms of recognition and further interpretation is to obtain an extension of the conventional geometry to the fuzzy case. The fuzzy geometry, which consists of the topological and geometrical structures such as connectedness, adjacency, principle of surrounded-ness (areas seen as surrounded by other areas are perceived as figures), convexity, area, perimeter, height, width, adjacency and etc. are essential to reflect the geometrical ambiguity of an image processing. Moreover, the application of the fuzzy geometry properties is important in soft computing decisions to further analyze and interpret a fuzzy image. The properties of fuzzy geometry based on the concepts of the length, breadth, height and methods of measuring a distance between fuzzy numbers are introduced here due to the numerous of applications in engineering problems and other fields.
Prediction of parameters of building structures using regression equations with independent action of variables and constancy of operating factors
Authors: Korolkov D , Karmokova K , Tuchkina L 
Published: December 2020

Abstract
In this article, the authors present a method for predicting the parameters of building structures and calculating the residual life using regression equations. The most commonly used regression equations were used: linear, polynomial, power, exponential, exponential, logarithmic, semilogarithmic, hyperbolic and logistic. The authors proposed to use one-factor regression equations, in which the variable is time, and the dependent value is the parameter of the building structure, the changes of which the researcher needs to determine. These equations are named by the author as the basic regression equations. Also, the authors in this article in the future, the basic equations are presented as multifactorial. This is achieved by replacing the coefficients of the main equation with regression equations, which are obtained after a series of tests are performed for various values of the selected input parameters (environmental conditions, material of construction, etc.), regression equations are obtained for each such state, as a result of which there are a number of values for the parameters of the basic regression equations. As a result, a repeated regression analysis is carried out and a regression equation is constructed for the coefficients of the main regression equation, which depends on the value of the specified parameters. Such equations are called secondary by the authors. Examples are given for conditional linear regression, where the author has demonstrated how the coefficients of the main regression equation are replaced and what final form the equation goes to after replacing the coefficients with secondary equations.
Analysis of hydraulic resistance in a rotating junction of the cooling system of an active phased array antenna of a circular view
Authors: Rybak A T , Tsybry I K , Shileev K V , Ermolenko I M 
Published: December 2020

Abstract
A hydraulic rotating transition is used to ensure the supply of coolant to the fuel elements when the antenna system is fully rotated. One of the main actuators of the antenna liquid cooling system is the hydraulic rotating transition. The SolidWorks Flow Simulation software package simulates the change in hydraulic resistance in a hydraulic rotating transition in various modes of operation. The process of transferring the coolant through a hydraulic rotating transition to the antenna, with full rotation, taking into account the influence of the geometric shape of the channels on the fluid flow, was modeled. The maximum values of resistances are analyzed in different operating modes. The dependence of hydraulic resistance on the quality of surface treatment of parts is given. The value of the hydraulic resistance in different modes of operation of the hydraulic rotating transition (HRT) is less than the value allowed to ensure the circulation of the working fluid in the cooling system. Based on the data obtained, an assessment of the feasibility of using the design of a hydraulic rotating transition for an active phased antenna array of a circular view at the design stage is made.
Thermomechanical damage to rolling stock wheels
Authors: Demyanov A , Demyanov A , Pavlova I , Gaylomazova E 
Published: December 2020

Abstract
Marshalling yards are a key part of the transportation process. Their precise operation determines the efficiency and safety of the transportation process, which, other things being equal, depend on the durability and safety of cars in real conditions, including during sorting processes on slides. Currently, during the dissolution of trains on low-power slides, shoe braking is used. This is cost-effective, but provokes the formation of thermomechanical damage on the surface of the wheels. These damages are called one-way sliders. The formation of sliders leads to downtime of cars during repairs and to the cost of restoring or manufacturing new wheels. The article presents a study of the effect of wheel sliding on the rail on the nature of thermal and mechanical damage to the wheels of rolling stock.
RETRACTED: Influence of imbalance of balancing of crankshafts during engine repair
Authors: Kokieva G , Moshkin N , Druzynova V , Radnayev D , Khiterkheyeva N 
Published: December 2020

Abstract
Currently, tractors and other complex machines repaired at advanced repair enterprises perform worse than new ones and have a shorter overhaul life. Let us consider what losses in the quality of the car are not replenished even with a well-organized repair in compliance with the existing technical conditions and whether they are really recoverable. If during the repair the car was assembled entirely from new good-quality parts and the required technical conditions were observed during the assembly, then no loss of serviceability of the machine during repair could take place. This means that it is difficult to eliminate the losses associated with the use during repair, firstly, partially worn out (with acceptable wear and tear) and, secondly, restored parts. The experience of using agricultural machinery shows that by using maintenance and repair tools that do not require large investments, it is possible to significantly reduce the downtime of the machine and tractor fleet. With the introduction of new, more progressive technological processes into technology, an increase in the speed and power of technology, as well as with the tasks of automatic regulation and control of machines, machine designs have radically changed. along with the mechanical ones, the machines include hydraulic, pneumatic, electrical, electronic devices. The imbalance in the correction planes of the crankshafts assembled with a flywheel and clutch supplied to spare parts is 1.2-6.5 times and 1.3-10.7 times, respectively, higher than the allowable one. after grinding the main and connecting rod journals for repair dimensions, the imbalance of these assembly units is also 1.5-7.2 and 1.7-12.3 times greater than the permissible unbalance of the crankshafts and to develop recommendations for improving the balancing accuracy during engine repair.
Problems and prospects of mechanical engineering innovative development in conditions of the digital economy
Authors: Shvydenko N V , Odintsova N P , Medyuha E V 
Published: December 2020

Abstract
The article identifies the main problems and trends in mechanical engineering in order to increase the competitiveness of its products by innovative type, discloses the nature of modern discussions on the enterprises’ technical development methods in the digital economy, proposes the strategic directions for industrial innovative development, which contribute to improving management efficiency of the machine-building complex.
Construction and testing of the parametric criterion of chemical damage of the employee
Authors: Esipov Yu V , Bochkova E A , Mamatchenko N S 
Published: December 2020

Abstract
This article examines the process of the chemical used in the painting of boiler housings and heaters. The effect on acetone is considered. A statistical assessment of parametric criteria was carried out, taking into account the consequences of its impact on the human body.
Structuring information on the state of labor safety at mechanical engineering enterprises
Authors: Solod S A , Novikov V V , Chukarin A N , Litvinov A E 
Published: December 2020

Abstract
The article discusses the issues of structuring the information received on the state of labor safety issues at mechanical engineering enterprises. Factors, multipliers and indicators on occupational safety issues at these enterprises are selected. The parameters of the BT control system and the relationship between them are determined. Sanitary and hygienic factors.
Water content of seedlings of Russian rice varieties
Authors: Goncharova Y , Bragina O , Goncharov S , Kharitonov E 
Published: December 2020

Abstract
Increasing price of irrigation water reduces efficiency of rice production and increases interest in developing drought-tolerant varieties of rice. The varieties adapted to stress are characterized by: maintenance of water content, high dry matter content, reduced leaf area, stability of growth and synthetic processes, as well as a high content of pigments. It was found that the high water content of plant tissues under conditions of water stress indicates an increased ability of plant different species to adapt to changing water supply conditions and provide its higher drought resistance. According to the literature, the ratio of bound and free forms of water can also be an indicator of plant resistance to drought, since the bound form of water provides the cell’s water retention capacity. In this regard, the purpose of the work is to show the possibility of differentiating domestic specimens according to the characteristic in the initial phases of development, revealing the range of variation and sources for further breeding work to create varieties adapted to drought.
Justification of production indicators of organic fertilizer based on sapropel
Authors: Morozov V , Savelyeva L , Nesterova E 
Published: December 2020

Abstract
The problem facing agricultural scientists is the search for effective ways to develop sapropel for fertilization to increase crop production by increasing soil fertility. One of the most important reserves of organic raw materials are the reserves of lake sapropels. It has been established that sapropel deposits, depending on the depth, have different values of agrochemical and physical properties. Having processed the empirical values of the sapropel characteristics in accordance with the requirements of the technological parameters, we obtained the optimal depths of the layer for industrial development. Its efficiency can be increased when applied together with lower doses of mineral fertilizers. To improve the technological process for the production of sapropel fertilizers, it is necessary to take into account that sapropel should be extracted from a scientifically substantiated layer of the deposit and in its natural state sapropel is not a full-fledged fertilizer; its effectiveness can be increased because of application together with mineral fertilizers. Mixing is one of the most important operations in fertilizer production technology and for this purpose; it is advisable to use a drum mixer.
Types of bale loaders and their comparative performance
Authors: Orlyansky A , Orlyanskaya I , Petetnev A , Kulaev E , Bobryshov A 
Published: December 2020

AbstractThe article provides an overview of different types of technical means for loading bales of silage. Using the program for simulation of the forage harvesting process, computer calculations were made of the comparative efficiency of the operation of loaders of rolls of various types at a rate of haylage harvesting from 100 to 650 tons per shift (10 hours). It has been established that, according to the criterion of unit total costs at a low rate of haylage harvesting - from 100 to 300 tons per shift - loading units with a front loader mounted on a tractor are more efficient. At a higher rate of forage harvesting, it is more efficient to use self-propelled loaders. With an equal unit total cost of funds, self-propelled loaders provide 1.5-2.0 times less labor costs.
Key end-to-end digital technologies in the ecosystem of the state’s digital economy
Authors: Kalyazina S , Iliashenko V , Kozhukhov Y , Zotova E 
Published: December 2020

Abstract
The state is an active participant and an important stakeholder in the digital economy development program. The expected formation of the ecosystem of the digital economy will increase the efficiency of state functions performance, increase the degree of citizens’ involvement in the life of society, and increase the competitiveness of the whole state. The effective implementation of government functions requires the fulfillment of the basic requirements for digital technologies in terms of the most effective implementation of the tasks. Based on these requirements, it is possible to identify the corresponding key end-to-end digital technologies, the inclusion of which in business processes will give maximum development.
The Effect of Reduction Cross Section Area and Rolling Temperature in Mechanical Properties of Al-Cu
Authors: Siahaan Erwin 
Published: December 2020

Abstract
Aluminium is one of the materials that mostly used in the industry after iron and steel. One of the methods that can be used to optimize their mechanical properties is a rolling process. However, the rolling process cannot be obtained at a low temperature since the formability of Al- Cu quite low. According to this research, the rolling process carries out at a high temperature; it is above its recrystallization temperature. The point of this research is to discern the maximum reduction in the temperature of 300°C, 400°C and 500°C and the influence of the mechanical properties. Based on the research the result shows us the higher temperature in hot rolling (300°C, 400oC, and 500°C), it can decrease 7,1% the hardness value but it can increase 550% the cross-section reduction. However, the toughness value of the material will increase. It shows us from the result of tensile strain up to 18%, the result of yield strain up to 130,77% and the elongation value up to 600%. The increasing of temperature in hot rolling in Al- Cu 2024 to achieve the formation of the intermetallic unit on intergranular grain finer.
A study on the response of high aspect ratio composite wing structures due to gust load
Authors: Gusto Andika Matza , Kismono Hadi Bambang , Adhy Sasongko Rianto 
Published: December 2020

Abstract
The purpose of this study is to acquire the correlation between composite tailoring at symmetric balanced laminate and gust response on high aspect ratio wing. As a flexible structure, the high aspect ratio wing had a susceptibility from dynamic loading. Gust or turbulence load is one of dynamic loading which can have a bad impact on the wing structure. There are many incidents caused by turbulence load, hence to obtain structural response is important. Because gust load is a stiffness problem, one way to handle these effects is to make the airframe more rigid which is not favorable due to the weight penalty in the gross weight of the aircraft. Plies orientations can be an alternative to make structure stiffer without adding structural weight. From this study, plies-orientations at symmetrically laminated composite had been varied starting from 0 to 90 degrees with 5 degrees increment at the skin of the wing. Bending and torsional natural frequencies have changed where changed in play orientation as well as the vibration response from the gust load. The discrete gust cases defined in the EASA requirements are used in this study. The structural response from the gust problem had different characteristics between angle plies laminate, cross-plies laminate, and various plies orientation. As a result of this research that symmetrically balanced laminate composite with fiber direction ±15 or ±75 degrees had a good bending characteristic, nevertheless that direction have the lowest bending stiffness. Further research needs to optimize the plies orientation to design the high aspect ratio wing which has a good aeroelastic response and minimize weight.
Covid-19 Series: A rule-based decision support system for analysis behavior of people while working from home
Authors: Henderi  , Putri Merliasari Rani , Warnars Harco L.H. S. , Sugiyatno  
Published: December 2020

Abstract
COVID-19 makes the community must carry out activities such as school, work, and worship at home. However, the long-running activities from home make people experience boredom which can lead to stress. On the other side, the entertainment obtained by the public through smartphones by reading articles by their interests can reduce boredom. This paper proposed a rules-based decision support system to help the people to make choices of their activities from home while COVID-19 e rules-based approach for make an application decision support system. Ruled base used in application to selected process through characteristics following the interests of the community. This decision support system is implemented in mobile web applications. The system can display articles based on interests by questions or statements through the front end system. The results showed that most users of the application in a happy condition while working from home.
Analysis of Shell and Tube Heat Exchanger Type
Authors: Tanujaya Harto , Riza Abrar 
Published: December 2020

Abstract
The stationary-head prototypes unusually are designed using low cost manufacture and simple construction, without bolt or nut to join both the stationary-head and shell. The shell has four holes to supply hot/cold fluid, and next to the tube-sheet hole to supply cold/hot fluid, the position both of them are inside the stationary-head. The calculation of the dimensions of the heat exchanger aims to determine the quality of the heat exchanger based on the overall heat transfer coefficient, impurity factor, and the pressure drop that will occur.Calculations using the LMTD method, obtained that receive heat released has a large unity with time Q, then the heat received by cold fluid is Q = 4565.16 W, LMTD produced also shows the number 20, with a proven factor (F) is 1. Comparison obtained from the calculation of the tube side and shell side is the value of Re generated is greater than the value of Re on the shell side.
The Effect of Using Composite Column for Enhancing Structural Stiffness
Authors: Juniarto Christian , Leman Sunarjo 
Published: December 2020

Abstract
The aims from this study is to determine which story has the greatest effect on the structure by using a structural column from composite material that is consist of steel and concrete combined together. Using the help of MIDAS GEN software to do the structural analysis. 5 models were made to capture the lateral displacement due to earthquake loading using linear dynamic procedure. Model 1 is a steel only structure followed by next model using composite materials starting from the bottom 2 floors (model 2 ), 4 floors (model 3), 6 floor (model 4), all floors (model 5). From all of the models that is used, we can conclude that the bottom 2 story is the one that has greatest impact in lowering the lateral displacement.
Utilization of machining technology in the production process of Jepara wood carving furniture
Authors: Supriyatna Eddy , Purna Irawan Agustinus , Widya Maitri , Mutiara  
Published: December 2020

Abstract
The wood carving furniture design that develops in Jepara, always tries to keep up with the universal global market demand. The production process of Jepara wood carving requires accuracy and speed without leaving good artistic value and beauty. Therefore, production machine technology is needed to be able to realize the results of research into the development of wood carving furniture design in accordance with global market expectations. This study aims to obtain an overview of production technology that can be implemented in the Jepara wood carving furniture production process, so as to produce a high quality product, an effective and efficient production process in accordance with consumer needs. The results of this study will be one of the references in the development of production facilities for making Jepara wood carving furniture.
Quality Management System in Automatic Machine Construction Based on ISO 9001
Authors: Venisa Gosan Meivi , Kosasih Wilson 
Published: December 2020

Abstract
This paper discusses how the implementation of quality management system (QMS) based on ISO 9001, which more studies ways to overcome defective products and also solutions to problems that often occur. This study was conducted at a company in Tangerang which is engaged in industrial automation. The analysis was carried out by observing and interviewing the company’s management. It was found that the quality inspection at this company included starting of incoming raw materials, parts or components in the process as well as finished goods. To cope with non-conformance products, if the product can still be repaired, it will be fixed again. If not, the product will be put on a shelf called “rejected design”. Some of the problems that are often faced by the quality control department include: errors in checking raw materials; reading errors on the gauge; and workers do not use personal protective equipment. The solution to these problems are to: build a mistake proofying culture; apply a system of penalties and rewards; provide training in the use of measuring instruments; and give warnings to workers who do not use personal protective equipment.