发布求助
文献互助 智能选刊 最新文献

Uchenye Zapiski Kazanskogo Universiteta-Seriya Fiziko-Matematicheskie Nauki最新文献

筛选
英文 中文
Synthesis of Binary Programs with Predominance of Branching Commands 具有分支命令优势的二进制程序的综合
IF 0.3
Uchenye Zapiski Kazanskogo Universiteta-Seriya Fiziko-Matematicheskie Nauki Pub Date : 2021-01-01 DOI: 10.26907/2541-7746.2021.3-4.276-290
V. V. Zhukov
{"title":"Synthesis of Binary Programs with Predominance of Branching Commands","authors":"V. V. Zhukov","doi":"10.26907/2541-7746.2021.3-4.276-290","DOIUrl":"https://doi.org/10.26907/2541-7746.2021.3-4.276-290","url":null,"abstract":"","PeriodicalId":41863,"journal":{"name":"Uchenye Zapiski Kazanskogo Universiteta-Seriya Fiziko-Matematicheskie Nauki","volume":"2003 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86236327","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
The Bubble Dynamics and Impulse Loading of a Rigid Surface under Acoustic Action 声学作用下刚性表面的气泡动力学和脉冲载荷
IF 0.3
Uchenye Zapiski Kazanskogo Universiteta-Seriya Fiziko-Matematicheskie Nauki Pub Date : 2021-01-01 DOI: 10.26907/2541-7746.2021.1.31-47
A. Aganin, T. Guseva, L. A. Kosolapova, V. Malakhov
{"title":"The Bubble Dynamics and Impulse Loading of a Rigid Surface under Acoustic Action","authors":"A. Aganin, T. Guseva, L. A. Kosolapova, V. Malakhov","doi":"10.26907/2541-7746.2021.1.31-47","DOIUrl":"https://doi.org/10.26907/2541-7746.2021.1.31-47","url":null,"abstract":"The results of a numerical study of the axisymmetric expansion and collapse of a gas bubble and related loading on a flat rigid wall under harmonic liquid (water) pressure oscillation are presented. Initially, a spherical bubble with a radius of 1 mm and the liquid are at rest. The impulse load on the wall results from the cumulative liquid jet impact on the bubble surface part close to the wall. It was found that, for the forcing amplitude within 0.06– 0.14 MPa, the shape of the jet remains nearly the same at the forcing frequency of 0.25–4 kHz, the velocity at its impact becomes maximum at a frequency of 1.5 kHz. The forcing amplitude influence is mainly reduced to increasing the jet impact velocity. At the fixed forcing frequency and amplitude values, an increase in the initial distance between the bubble and the wall leads to an insignificant variation in the jet impact velocity. For a forcing frequency corresponding to the maximum jet velocity, some estimates of the impulse loading on the wall were determined, depending on the forcing amplitude and the initial distance between the bubble and the wall. It was found that an increase in the amplitude results in the higher and longer loading, as well as in the larger radius of the region with the maximum load.","PeriodicalId":41863,"journal":{"name":"Uchenye Zapiski Kazanskogo Universiteta-Seriya Fiziko-Matematicheskie Nauki","volume":"39 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86567524","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
On the Asymptotic Behavior of Shannon-Type Functions Characterizing the Computing Complexity of Systems of Monomials 表征单项式系统计算复杂度的shannon -型函数的渐近行为
IF 0.3
Uchenye Zapiski Kazanskogo Universiteta-Seriya Fiziko-Matematicheskie Nauki Pub Date : 2020-01-01 DOI: 10.26907/2541-7746.2020.3.300-310
S. A. Korneev
{"title":"On the Asymptotic Behavior of Shannon-Type Functions Characterizing the Computing Complexity of Systems of Monomials","authors":"S. A. Korneev","doi":"10.26907/2541-7746.2020.3.300-310","DOIUrl":"https://doi.org/10.26907/2541-7746.2020.3.300-310","url":null,"abstract":"In this paper, we examined the computational complexity of systems of monomials for some models that allow multiple use of intermediate results, such as composition circuits and multiplication circuits. For these models, we studied Shannon-type functions that characterize the maximum computational complexity of systems of monomials with exponents not exceeding the corresponding elements of a given matrix A . We found that for composition circuits, under the condition of unlimited growth of the maximum of matrix elements, this function grows asymptotically as the binary logarithm of the maximum absolute value (without regard to the sign) of the term from the determinant of the matrix A. Using generalized circuits as an auxiliary model, we transferred this result (under some restrictions) to the model of multiplication circuits.","PeriodicalId":41863,"journal":{"name":"Uchenye Zapiski Kazanskogo Universiteta-Seriya Fiziko-Matematicheskie Nauki","volume":"8 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78598014","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: 2
The Modern Method of Creating Dynamically Scaled Models to Study Aircraft Flutter Characteristics 建立飞机颤振特性动态比例模型的现代方法
IF 0.3
Uchenye Zapiski Kazanskogo Universiteta-Seriya Fiziko-Matematicheskie Nauki Pub Date : 2020-01-01 DOI: 10.26907/2541-7746.2020.4.441-454
A. V. Dolgopolov, D. Kazancev, I. V. Markin, O. Orlova, S. Shalaev
{"title":"The Modern Method of Creating Dynamically Scaled Models to Study Aircraft Flutter Characteristics","authors":"A. V. Dolgopolov, D. Kazancev, I. V. Markin, O. Orlova, S. Shalaev","doi":"10.26907/2541-7746.2020.4.441-454","DOIUrl":"https://doi.org/10.26907/2541-7746.2020.4.441-454","url":null,"abstract":"A complex research, which included the design, manufacture, and testing of a dynamically scaled model of the all-moving tail (AMT) of an aircraft with the numerical calculations at each stage, was carried out. The dynamically scaled model was designed to study flutter characteristics in a wind tunnel. For the all-moving tail, the model consists of a plywood core with fiberglass, carbon fiber, and shaping foam material, all glued layer by layer. In order to reliably determine the flutter boundaries, the dynamically scaled model should accurately reproduce the dynamic characteristics of the full-scale structure. With this aim, an approach was deve-loped to obtain the experimental modal characteristics and refine the dynamic mathematical models at each stage of manufacturing of the dynamically scaled model. For the dynamically scaled model refinement, one of the mathematical models was structurally similar based on finite elements, while the other one was made based on the polynomial method with plate and beam elements and then used to calculate the flutter boundaries. This approach ensured the high accuracy in modelling the dynamic properties of the full-scale all-moving tail and in the experimental determination of the flutter boundaries.","PeriodicalId":41863,"journal":{"name":"Uchenye Zapiski Kazanskogo Universiteta-Seriya Fiziko-Matematicheskie Nauki","volume":"425 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80109286","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
Quantum Online Algorithms for a Model of the Request-Answer Game with a Buffer 带缓冲的问答博弈模型的量子在线算法
IF 0.3
Uchenye Zapiski Kazanskogo Universiteta-Seriya Fiziko-Matematicheskie Nauki Pub Date : 2020-01-01 DOI: 10.26907/2541-7746.2020.3.367-382
K. Khadiev, D. Lin
{"title":"Quantum Online Algorithms for a Model of the Request-Answer Game with a Buffer","authors":"K. Khadiev, D. Lin","doi":"10.26907/2541-7746.2020.3.367-382","DOIUrl":"https://doi.org/10.26907/2541-7746.2020.3.367-382","url":null,"abstract":"In this paper, we considered online algorithms as a request-answer game between two players: an adversary that generates input requests and an online algorithm that answers them. A generalized version of the game that has a buffer of limited size was studied. The adversary loads data to the buffer, while the algorithm has random access to elements of the buffer. For the model, quantum and classical (deterministic or randomized) algorithms were a focus of attention. A specific problem and a quantum algorithm that works better than any classical (deterministic or randomized) algorithm, in terms of competitive ratio, were provided. At the same time, for the problem, classical online algorithms in the standard model are equivalent to the classical algorithms in the request-answer game with a buffer model.","PeriodicalId":41863,"journal":{"name":"Uchenye Zapiski Kazanskogo Universiteta-Seriya Fiziko-Matematicheskie Nauki","volume":"85 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86428452","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: 7
Refined Estimates of the Decoder Complexity in the Model of Cellular Circuits with Functional and Switching Elements 具有功能和开关元件的细胞电路模型中解码器复杂度的精细估计
IF 0.3
Uchenye Zapiski Kazanskogo Universiteta-Seriya Fiziko-Matematicheskie Nauki Pub Date : 2020-01-01 DOI: 10.26907/2541-7746.2020.3.322-334
S. Lozhkin, V. S. Zizov
{"title":"Refined Estimates of the Decoder Complexity in the Model of Cellular Circuits with Functional and Switching Elements","authors":"S. Lozhkin, V. S. Zizov","doi":"10.26907/2541-7746.2020.3.322-334","DOIUrl":"https://doi.org/10.26907/2541-7746.2020.3.322-334","url":null,"abstract":"The model of cellular circuits was considered in a single basis of functional and switching elements, which is built in accordance with the standard basis B 0 consisting of Boolean functions x 1 & x 2 , x 1 ∨ x 2 , x 1 . In this model, both circuit implementing such a decoder, provided that n = 1 , 2 , . . . , is equal to n 2 n − 1 (1+ O (1 /n )). This is the first time when so-called asymptotic estimates of a high degree of accuracy, i.e., estimates with a relative error O (1 /n ), were obtained for it.","PeriodicalId":41863,"journal":{"name":"Uchenye Zapiski Kazanskogo Universiteta-Seriya Fiziko-Matematicheskie Nauki","volume":"10 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81849855","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: 2
On the Cardinality of Layers in Some Partially Ordered Sets 关于部分有序集合中层的基数性
IF 0.3
Uchenye Zapiski Kazanskogo Universiteta-Seriya Fiziko-Matematicheskie Nauki Pub Date : 2020-01-01 DOI: 10.26907/2541-7746.2020.3.269-284
T. Andreeva, Y. Semenov
{"title":"On the Cardinality of Layers in Some Partially Ordered Sets","authors":"T. Andreeva, Y. Semenov","doi":"10.26907/2541-7746.2020.3.269-284","DOIUrl":"https://doi.org/10.26907/2541-7746.2020.3.269-284","url":null,"abstract":"In this paper, we explicitly calculated additional terms of cardinality asymptotics of layers in the n -dimensional k -valued lattice E nk for odd k as n → ∞. The main term had been previously determined by V.B. Alekseev for a class of posets and, particularly, for E n . Additionally, we precised the cardinality asymtotics of central layers in Cartesian powers of the non-graded poset given by V.B. Alekseev in the same work and calculated the sums of boundary functionals for the n -dimensional three-valued lattice. The obtained theorems, lemmas, and formulas are of combinatorial interest by themselves. They can also be used for estimating the cardinality of maximal antichain or the number of antichains in posets of a definite class.","PeriodicalId":41863,"journal":{"name":"Uchenye Zapiski Kazanskogo Universiteta-Seriya Fiziko-Matematicheskie Nauki","volume":"5 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80319898","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
Asymptotic Analysis of Geometrically Nonlinear Vibrations of Long Plates 长板几何非线性振动的渐近分析
IF 0.3
Uchenye Zapiski Kazanskogo Universiteta-Seriya Fiziko-Matematicheskie Nauki Pub Date : 2020-01-01 DOI: 10.26907/2541-7746.2020.4.396-410
B. Affane, A. Egorov
{"title":"Asymptotic Analysis of Geometrically Nonlinear Vibrations of Long Plates","authors":"B. Affane, A. Egorov","doi":"10.26907/2541-7746.2020.4.396-410","DOIUrl":"https://doi.org/10.26907/2541-7746.2020.4.396-410","url":null,"abstract":"In this paper, we performed an asymptotic analysis for equations of the classical plate theory with the von K´arm´an strains under the assumption that the width of the plate is small compared with its length. A system of one-dimensional equations, which describes the nonlinear interaction of flexural and torsional vibrations of beams, was derived. This enab-les the possibility of exciting torsional vibrations by flexural vibrations. This possibility was analyzed for a model problem, when flexural vibrations occur in normal modes.","PeriodicalId":41863,"journal":{"name":"Uchenye Zapiski Kazanskogo Universiteta-Seriya Fiziko-Matematicheskie Nauki","volume":"3 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76230164","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
Bounds of Non-Monotone Complexity for the Multi-Valued Logic Functions 多值逻辑函数的非单调复杂度界
IF 0.3
Uchenye Zapiski Kazanskogo Universiteta-Seriya Fiziko-Matematicheskie Nauki Pub Date : 2020-01-01 DOI: 10.26907/2541-7746.2020.3.311-321
V. Kochergin, A. Mikhailovich
{"title":"Bounds of Non-Monotone Complexity for the Multi-Valued Logic Functions","authors":"V. Kochergin, A. Mikhailovich","doi":"10.26907/2541-7746.2020.3.311-321","DOIUrl":"https://doi.org/10.26907/2541-7746.2020.3.311-321","url":null,"abstract":"The non-monotone complexity of realization of k -valued logic functions by circuits in a special basis was investigated. The basis consists of elements of two types: the first type comprises all monotone functions (with respect to the order 0 < 1 < 2 <···< k− 1 ) with zero weight; the second type includes non-monotone elements with unit weight, the non-empty set of which is finite. The upper and lower bounds of non-monotone complexity (the minimum number of non-monotone elements) for an arbitrary k -valued logic function were established. The difference between the upper and lower bounds does not exceed a universal constant. The difference between the best upper and lower bounds known before is a constant that depends on the basis. The range of values for these constants is infinite.","PeriodicalId":41863,"journal":{"name":"Uchenye Zapiski Kazanskogo Universiteta-Seriya Fiziko-Matematicheskie Nauki","volume":"26 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75238957","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: 2
The Study of Selenophysical Parameters with the Use of the Noise-Immune Method of Robust Estimates 基于抗噪声鲁棒估计方法的硒物理参数研究
IF 0.3
Uchenye Zapiski Kazanskogo Universiteta-Seriya Fiziko-Matematicheskie Nauki Pub Date : 2020-01-01 DOI: 10.26907/2541-7746.2020.4.481-491
Y. Nefedyev, A. Andreev, N. Demina
{"title":"The Study of Selenophysical Parameters with the Use of the Noise-Immune Method of Robust Estimates","authors":"Y. Nefedyev, A. Andreev, N. Demina","doi":"10.26907/2541-7746.2020.4.481-491","DOIUrl":"https://doi.org/10.26907/2541-7746.2020.4.481-491","url":null,"abstract":"The study of selenophysical parameters with the use of the noise-immune method of robust estimates. Abstract This work is dedicated to the issues of reducing long-period series of astronomical observations. Such series contain both unequal and erroneous observations. Determination of the desired parameters from such observations is, thus, a rather complicated task. The main challenge is fair assessment of the accuracy of results produced. There are a number of methods for solving this problem, but the most suitable one for determining noise-immune estimates is the Huber M -estimator method (NIHEM). The selenophysical parameters were found by the analysis of measurements of the Mösting A crater from the Kaguya and Apollo lunar missions and from the heliometric observations. Such observations have a complex internal structure, and their analysis with the use of the method of least squares makes it impossible to either assess and eliminate erroneous measurements or take into account the unequal accuracy of the observations taken. Hence, to derive the desired selenophysical parameters, the NIHEM approach was used. As a result, the values and estimates of the Mösting A crater’s radius-vector, its selenographic longitude and latitude, lunar obliquity, values of harmonics in the expansion of physical libration into longitude, and corrections to the mean radius of the Moon were obtained.","PeriodicalId":41863,"journal":{"name":"Uchenye Zapiski Kazanskogo Universiteta-Seriya Fiziko-Matematicheskie Nauki","volume":"15 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84340860","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信