Herald of the Bauman Moscow State Technical University. Series Natural Sciences最新文献_第9页

Identification and Clustering of Template Texts in the Large Arrays of Messages 大型消息数组中模板文本的识别与聚类

Herald of the Bauman Moscow State Technical University. Series Natural Sciences Pub Date : 2022-12-01 DOI: 10.18698/0236-3933-2022-4-20-35

I.E. Vishnyakov, Igor P. Ivanov, I. Karkin

{"title":"Identification and Clustering of Template Texts in the Large Arrays of Messages","authors":"I.E. Vishnyakov, Igor P. Ivanov, I. Karkin","doi":"10.18698/0236-3933-2022-4-20-35","DOIUrl":"https://doi.org/10.18698/0236-3933-2022-4-20-35","url":null,"abstract":"A lot of services are using short messages for various purposes today, for example, stores are sending promotional offers, and EMERCOM of Russia informs population in the event of a threat of natural and technogenic emergencies. Selecting short texts of the template messages from general traffic could be used to filter spam and mailings, as well as to protect users from fraudulent activities. Such arrays of messages are often reaching such a large size that their storage and processing on a single dedicated personal computer or server becomes practically impossible. This work aims at developing approaches to the efficient identification and clustering of the template texts from large arrays of the short messages using the Apache Spark framework for distributed processing of the unstructured data. Main approaches to identifying templates and clustering textual information are considered. Approaches were developed making it possible to cluster in large arrays of messages using distributed computation without preliminary acquisition of the text vector representations. Algorithms are provided for efficient identification of the template messages from large arrays of short texts. Algorithms were compared in terms of performance and quality of pattern identification","PeriodicalId":12961,"journal":{"name":"Herald of the Bauman Moscow State Technical University. Series Natural Sciences","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76108659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Influence of a Perturbation of a Moving Singular Point on the Structure of an Analytical Approximate Solution of a Class of Third-Order Nonlinear Differential Equations in a Complex Domain 运动奇异点扰动对复域上一类三阶非线性微分方程解析近似解结构的影响

Herald of the Bauman Moscow State Technical University. Series Natural Sciences Pub Date : 2022-12-01 DOI: 10.18698/1812-3368-2022-6-60-76

V. Orlov, M. Gasanov

{"title":"The Influence of a Perturbation of a Moving Singular Point on the Structure of an Analytical Approximate Solution of a Class of Third-Order Nonlinear Differential Equations in a Complex Domain","authors":"V. Orlov, M. Gasanov","doi":"10.18698/1812-3368-2022-6-60-76","DOIUrl":"https://doi.org/10.18698/1812-3368-2022-6-60-76","url":null,"abstract":"The authors prove the theorem of existence and uniqueness of the solution, construct an analytical approximate solution in the complex domain for one class of nonlinear differential equations of the third order, the solution of which are discontinuous functions. The solution of the listed mathematical problems is based on the classical approach. Since the existing methods allow obtaining moving singular points only approximately, it is necessary to investigate the effect of a perturbation of a moving singular point on the structure of an analytical approximate solution in the complex domain. Since the existing methods allow obtaining moving singular points only approximately, it is necessary to investigate the effect of a perturbation of a moving singular point on the structure of an analytical approximate solution in the complex domain. A theorem that allows us to determine a priori estimates of the error of the analytical approximate solution is proved. The study applies the classical approach to estimation and illustrates the application of series with fractional negative powers. The article presents the results of numerical experiment confirming the validity of the obtained theoretical position. The technique of optimization of a priori estimates of analytical approximate solution in the vicinity of perturbed value of moving singular point using a posteriori estimates is presented. The results allow expanding the classes of nonlinear differential equations used as a basis for mathematical models of processes and phenomena in various fields of human activity. In particular, the class of equations under consideration can be applied in the study of wave processes in elastic beams, which is confirmed by theoretical data","PeriodicalId":12961,"journal":{"name":"Herald of the Bauman Moscow State Technical University. Series Natural Sciences","volume":"123 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76127316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Influence of the Aperture Stop Fractal Shape of an Optical System on the Illuminance Distribution 光学系统孔径孔径分形对照度分布的影响

Herald of the Bauman Moscow State Technical University. Series Natural Sciences Pub Date : 2022-12-01 DOI: 10.18698/0236-3933-2022-4-70-79

V. Zavarzin, S. Kaledin, S. Yakubovskiy

{"title":"The Influence of the Aperture Stop Fractal Shape of an Optical System on the Illuminance Distribution","authors":"V. Zavarzin, S. Kaledin, S. Yakubovskiy","doi":"10.18698/0236-3933-2022-4-70-79","DOIUrl":"https://doi.org/10.18698/0236-3933-2022-4-70-79","url":null,"abstract":"In the article the options for the application of aperture shapes with fractal properties in the design of optical systems are considered. Calculations of mathematical models of point spread functions of a diffraction-limited optical system are performed. The diffraction patterns of the light distribution in these systems are presented, and the point spread functions are considered for various shapes of the aperture stop. Analytical expressions are obtained for the light distribution depending on the pupil shape, which can be used to control the process of image formation. The pupil shape, which has the shape of an equilateral triangle, is chosen as the basic one, and the shape of the pupil as a \"Koch snowflake\" curve is also considered. Using the Fraunhofer integral, the dependences of the distribution of the spectral density of the complex amplitude on the aperture located on an opaque screen are derived in the Fraunhofer approximation and under the condition of illumination by a plane monochromatic wave. Using the relationship with the complex amplitude, the sought-for intensity distribution in the plane of the diffraction pattern is obtained. Taking into account the simplifications adopted in this article, the solution of the Fraunhofer integral is found, by setting the integration limits, depending on: the selected aperture profile, the coordinate system chosen for it, and the position of nodal points in this system","PeriodicalId":12961,"journal":{"name":"Herald of the Bauman Moscow State Technical University. Series Natural Sciences","volume":"121 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76874976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Results of Research to Identify the Causes of Unstable Operation of the Cryogenic Air Separation Unit TKDS-100V TKDS-100V低温空分装置运行不稳定原因分析研究结果

Herald of the Bauman Moscow State Technical University. Series Natural Sciences Pub Date : 2022-12-01 DOI: 10.18698/0236-3941-2022-4-89-107

A. A. Vorobyev, A. V. Kozlov, A. M. Kokarev, I. V. Zheltoukhov

{"title":"The Results of Research to Identify the Causes of Unstable Operation of the Cryogenic Air Separation Unit TKDS-100V","authors":"A. A. Vorobyev, A. V. Kozlov, A. M. Kokarev, I. V. Zheltoukhov","doi":"10.18698/0236-3941-2022-4-89-107","DOIUrl":"https://doi.org/10.18698/0236-3941-2022-4-89-107","url":null,"abstract":"The article presents the main results of an experimental study of the operation of a nitrogen rectification column of a high-pressure air separation unit TKDS-100V developed by JSC \"NPO \"Geliymash\" as an alternative to the installations of the previous generation AKDS-70M. The declared productivity of these units is much higher in comparison with the predecessor, the concentration of the products obtained meets the requirements and is ensured by the use of efficient heat and mass transfer devices of its own production. However, the experience of operating the TKDS-100V air separation unit has revealed a number of significant disadvantages. The unstable operation of the air separation unit of the TKDS-100V unit, caused by both constructive miscalculations and errors in the operational documentation, leads to operational disadvantages. The evaluation of the mass productivity of the TKDS-100V unit in the mode of liquid nitrogen production has been carried out. Based on a detailed analysis of empirical data, the reason for the oscillatory nature of the processes occurring in the column has been established, which significantly complicate the operator’s work, exclude the possibility of maintaining a rational mode and often lead to emergency situations associated with the parameters going beyond the limits of acceptable values. Deficiencies in the design of the rectification column leading to a pulsating supply of reflux from the pockets of the condenser to the upper rectification plate are identified and solutions are proposed","PeriodicalId":12961,"journal":{"name":"Herald of the Bauman Moscow State Technical University. Series Natural Sciences","volume":"67 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90641128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Estimates of Equilibrium Temperature on the Surface of the Spherical Blunt of the Descent Orbiter 下降轨道器球面钝器表面平衡温度的估计

Herald of the Bauman Moscow State Technical University. Series Natural Sciences Pub Date : 2022-12-01 DOI: 10.18698/0236-3941-2022-4-44-59

V. Zarubin, V. Zimin, V. Leonov, V. Zarubin

{"title":"Estimates of Equilibrium Temperature on the Surface of the Spherical Blunt of the Descent Orbiter","authors":"V. Zarubin, V. Zimin, V. Leonov, V. Zarubin","doi":"10.18698/0236-3941-2022-4-44-59","DOIUrl":"https://doi.org/10.18698/0236-3941-2022-4-44-59","url":null,"abstract":"The descent of a stabilized capsule from a low near-earth orbit along a ballistic trajectory is considered. The descent of a stabilized capsule from a low Earth orbit along a ballistic trajectory is considered. A reliable preliminary estimate of the intensity of the thermal impact of the air flow, which enters the surface of the capsule, is the equilibrium temperature of this surface. The value of the equilibrium temperature follows from the condition of equality of the density of the total heat flux brought to the surface and the density of the heat flux, removed due to the own radiation of this surface. Based on the peculiarities of the heat exchange process on the surface of the spherical blunt capsule three sections of the trajectory are distinguished. At free-molecular flowing of the blunt, at the section of descent the intensity of heat exchange is assumed to be proportional to the energy of the molecule flow. At the section corresponding to the continuum flow regime, the intensity of convective and radiative heat transfer is estimated by empirical dependences obtained by processing the calculated and experimental results. When combining laminar and turbulent flow modes on the attenuation surface, the highest of two local values of convective heat flux density is taken. At the intermediate section of the descent, the Knudsen number is taken as an argument determining the intensity of convective heat transfer, and empirical dependences are used to estimate the radiation component. A quantitative analysis of the change in the time of descent of the maximum value of the equilibrium temperature on the blunted surface for a ball capsule and a capsule with a ball segment was carried out. The results of such analysis are the purpose of the present work and allow to identify the most heat-stressed areas of the descent trajectory on the blunt surface at the preliminary stage of the design and to choose the acceptable materials of the thermal protection coating","PeriodicalId":12961,"journal":{"name":"Herald of the Bauman Moscow State Technical University. Series Natural Sciences","volume":"75 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83811609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Determination of the Constants of the Equation of State for Calculating the Elastic Properties of Various Engine Fuels and Technical Fluids 计算各种发动机燃料和工艺流体弹性特性的状态方程常数的确定

Herald of the Bauman Moscow State Technical University. Series Natural Sciences Pub Date : 2022-12-01 DOI: 10.18698/0236-3941-2022-4-108-137

L. Grekhov, V. Markov, N.A. Arsenov, J. Zhao, B. Sa

{"title":"Determination of the Constants of the Equation of State for Calculating the Elastic Properties of Various Engine Fuels and Technical Fluids","authors":"L. Grekhov, V. Markov, N.A. Arsenov, J. Zhao, B. Sa","doi":"10.18698/0236-3941-2022-4-108-137","DOIUrl":"https://doi.org/10.18698/0236-3941-2022-4-108-137","url":null,"abstract":"The creation of modern mathematical models of unsteady high-pressure fuel injection in engines requires the replacement of universal empirical equations for one of the elastic properties of fuel by a mathematically more correct equation of state. The necessity of the existence and use of convenient and simple forms of the equation of state, allowing the values of density, compressibility factor and sound velocity of traditional and alternative fuels for diesel engines to be determined quickly and with sufficient accuracy, has been substantiated. Modern approaches to the description of the state of droplet and two-phase liquids are analyzed. The absence of phase transitions in the process of fuel delivery under high pressures has allowed to substantiate the possibility of using the equation of state for the forward and backward account. An equation of state adequate to processes with high and ultrahigh pressures (up to 400 MPa) and moderately high temperatures (up to 460 K) has been proposed. The equipment used and the method of obtaining empirical information through determination of the current sound velocity are described. A method for calculating the values of constants of the chosen form of the equation of state in the form of expressions determining their dependence on temperature and an algorithm for calculating the constants of the equation of state in processing experimental data are presented. Based on literature data, as well as the results of studies conducted, sets of empirical equation of state constants for 49 diesel fuels, various test and technical fluids, and alternative motor fuels are obtained","PeriodicalId":12961,"journal":{"name":"Herald of the Bauman Moscow State Technical University. Series Natural Sciences","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81141111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Evaluation of the Experiment Factors Influence in Studying Dynamic Error of the TwoComponent Angular Rate Sensor 双分量角速率传感器动态误差研究中影响实验因素的评价

Herald of the Bauman Moscow State Technical University. Series Natural Sciences Pub Date : 2022-12-01 DOI: 10.18698/0236-3933-2022-4-92-107

V. P. Podchezertsev, D. D. Nguyen

{"title":"Evaluation of the Experiment Factors Influence in Studying Dynamic Error of the TwoComponent Angular Rate Sensor","authors":"V. P. Podchezertsev, D. D. Nguyen","doi":"10.18698/0236-3933-2022-4-92-107","DOIUrl":"https://doi.org/10.18698/0236-3933-2022-4-92-107","url":null,"abstract":"Angular rate sensors are widely used in various technology areas, especially in aviation and rocket technologies. Angular rate sensors are installed in aircraft stabilization, orientation and navigation systems to determine the object angular position and control. In addition, they could be introduced in the automatic control systems of a moving object to enter a signal proportional to the angular rate in the control function or to damp the object oscillations occurring under the action of angular or linear overloads. Various design schemes of angular rate sensors are currently known to perform their functionality with required accuracy in the given frequency range. For them, the influence of design parameters and feedback loop on the accuracy of a device under conditions of dynamic operational influences was studied sufficiently. Biaxial angular rate sensor built on the basis of a dynamically tuned gyroscope was considered, and the influence of various design and technological factors on the experimental estimated accuracy of its dynamic error was studied. Main probable factors leading to inaccuracies in determining this error in testing on the angular oscillations bench were considered","PeriodicalId":12961,"journal":{"name":"Herald of the Bauman Moscow State Technical University. Series Natural Sciences","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88154833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of Capabilities of the Multispectral Optical Method in Monitoring the Forest Territories 多光谱光学方法在森林区域监测中的能力分析

Herald of the Bauman Moscow State Technical University. Series Natural Sciences Pub Date : 2022-12-01 DOI: 10.18698/0236-3933-2022-4-56-69

M. L. Belov, A. Belov, V. Gorodnichev, S. V. Alkov

{"title":"Analysis of Capabilities of the Multispectral Optical Method in Monitoring the Forest Territories","authors":"M. L. Belov, A. Belov, V. Gorodnichev, S. V. Alkov","doi":"10.18698/0236-3933-2022-4-56-69","DOIUrl":"https://doi.org/10.18698/0236-3933-2022-4-56-69","url":null,"abstract":"The paper analyzes possibilities of the multispectral remote optical method in monitoring the forest areas. Results of mathematical simulation are provided of classification of the forest areas elements in the created neural network using experimentally measured reflection of the forest vegetation coefficients. It is demonstrated that the created neural network ensures high probability of correct classification within the classification problem (according to the multispectral remote optical monitoring data) of the forest probed areas. The selected spectral probing channels in a wide spectral range of ~ 400--2400 nm and the created neural network used seven spectral channels in the visible and in the near infrared spectral range, as well as the active laser sensor to measure the trees height. They provided a probability of correct classification of the forest areas elements (green deciduous trees, green coniferous trees, dry deciduous and coniferous trees, swamps, pastures with different vegetation cover and different types of soils) of more than 0.74 and the probability of misclassification of the forest areas elements of less than 0.08. The multispectral remote optical method could be used in operational monitoring of the vast forest areas from an aircraft (light aircraft or unmanned aerial vehicle)","PeriodicalId":12961,"journal":{"name":"Herald of the Bauman Moscow State Technical University. Series Natural Sciences","volume":"2016 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86538085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-Precision Aircraft Guidance System with Axial Acceleration Self-Tuning 具有轴向加速度自调谐的高精度飞机制导系统

Herald of the Bauman Moscow State Technical University. Series Natural Sciences Pub Date : 2022-12-01 DOI: 10.18698/0236-3941-2022-4-60-76

A. N. Klishin, D. S. Kolesnikova

{"title":"High-Precision Aircraft Guidance System with Axial Acceleration Self-Tuning","authors":"A. N. Klishin, D. S. Kolesnikova","doi":"10.18698/0236-3941-2022-4-60-76","DOIUrl":"https://doi.org/10.18698/0236-3941-2022-4-60-76","url":null,"abstract":"Creation of aircraft control systems that provide high quality guidance is an urgent task associated with increasing efficiency of the modern missile systems. Classical autonomous guidance systems without integration with any other external correction systems are making it impossible to ensure high-precision target engagement. An approach based on the use of adaptive guidance system is proposed. Besides, an approach to synthesis and analysis of the self-tuning aircraft control system that implements terminal homing is illustrated. A technique for forming the control system structure is presented ensuring the control quality constant level in all operating modes due to self-tuning of the constituent elements variable coefficients. Structural schemes and control equations were determined to correct the aircraft flight. Implementation of the developed technique on board the aircraft is proposed determining relationship between the aircraft control system parameters and the apparent acceleration. Adaptive system operation is demonstrated on a typical model of the aircraft flying in the atmosphere with guidance at the stationary target. Results of numerical simulation are presented, and high efficiency of the developed technique is revealed","PeriodicalId":12961,"journal":{"name":"Herald of the Bauman Moscow State Technical University. Series Natural Sciences","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76625383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Method for Generating Gravitational Waves by Meansof a Standing Electromagnetic Wave System 利用驻波系统产生引力波的方法

Herald of the Bauman Moscow State Technical University. Series Natural Sciences Pub Date : 2022-12-01 DOI: 10.18698/1812-3368-2022-6-90-105

A. Morozov, I. Fomin, V. Gladyshev, V. Kauts, E. Sharandin, A. Kayutenko

{"title":"Method for Generating Gravitational Waves by Meansof a Standing Electromagnetic Wave System","authors":"A. Morozov, I. Fomin, V. Gladyshev, V. Kauts, E. Sharandin, A. Kayutenko","doi":"10.18698/1812-3368-2022-6-90-105","DOIUrl":"https://doi.org/10.18698/1812-3368-2022-6-90-105","url":null,"abstract":"In this paper, we consider the method of generating gravitational waves by means of a system of standing electromagnetic waves at the difference frequency in electromagnetic resonators and their further registration based on various types of detectors. As a factor of amplification of the amplitude of gravitational waves induced by the proposed method, the inverse dependence of their amplitude on the square of the difference frequency is considered, which is a consequence of Einstein’s equations for the studied configuration of electromagnetic fields in the resonator. The characteristics of gravitational waves associated with the electromagnetic field inside the resonator and gravitational waves in empty space are compared. The possibility of conducting an experiment on the generation and detection of gravitational waves with controlled parameters of the source and detector (Hertz experiment) on the basis of the proposed method has been investigated. Various types of existing and promising detectors of low-frequency gravitational waves are considered and an estimate of the source characteristics necessary for the successful detection of gravitational waves generated by this method is obtained. The effectiveness of the proposed approach is compared with other methods of generating gravitational waves. The specificity of the considered method of generating gravitational waves is noted, associated with the possibility of obtaining in laboratory conditions low-frequency gravitational waves with a frequency close to the frequency of gravitational waves of astrophysical sources and the amplitude significantly exceeding the amplitude of high-frequency gravitational waves, which can be generated on the basis of previously proposed methods","PeriodicalId":12961,"journal":{"name":"Herald of the Bauman Moscow State Technical University. Series Natural Sciences","volume":"282 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78885071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0