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Nonlinear Phenomena in Complex Systems最新文献

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PMMA – C60 composite: thermal decomposition experiments in mass spectrometer and quantum chemical modeling PMMA - C60复合材料:质谱仪热分解实验和量子化学建模
IF 0.4
Nonlinear Phenomena in Complex Systems Pub Date : 2021-12-10 DOI: 10.33581/1561-4085-2021-24-4-365-369
A. O. Pozdnyakov, A. Pushkarchuk, S. Kuten, L. F. Babichev
{"title":"PMMA – C60 composite: thermal decomposition experiments in mass spectrometer and quantum chemical modeling","authors":"A. O. Pozdnyakov, A. Pushkarchuk, S. Kuten, L. F. Babichev","doi":"10.33581/1561-4085-2021-24-4-365-369","DOIUrl":"https://doi.org/10.33581/1561-4085-2021-24-4-365-369","url":null,"abstract":"Mass-spectrometric thermal decomposition experiments with submicron films of neat polymethylmethacrylate (PMMA), and PMMA-fullerene composite (PMMA-C60) after UV irradiation are discussed. The experiment registers thermal desorption mass spectra (TDMS), that is the monomer desorption rate versus time upon gradual heating the PMMA films in a given heating regime. The spectra provide information on the amount of the monomer desorbed at different decomposition stages upon heating the given amount of film material as well as on the spectral shape changes. It is shown that both amount of monomer and the TDMS spectral shape are sensitive to the presence of fullerene and UV irradiation. The experimental results are discussed in terms of quantum chemical models of binding. The DFT/B3LYP-D3/def2/J RIJCOSX level of theory was used. The MMA-C60 structures which can yield different amounts of monomer have been compared.","PeriodicalId":43601,"journal":{"name":"Nonlinear Phenomena in Complex Systems","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44188932","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
Comparison Between Different Growth Functions of the Jatropha Curcas Plant with Random Attack Pattern of Whitefly 白蝇随机侵染麻疯树不同生长功能的比较
IF 0.4
Nonlinear Phenomena in Complex Systems Pub Date : 2021-12-10 DOI: 10.33581/1561-4085-2021-24-4-382-390
R. Das, A. Sarkar
{"title":"Comparison Between Different Growth Functions of the Jatropha Curcas Plant with Random Attack Pattern of Whitefly","authors":"R. Das, A. Sarkar","doi":"10.33581/1561-4085-2021-24-4-382-390","DOIUrl":"https://doi.org/10.33581/1561-4085-2021-24-4-382-390","url":null,"abstract":"We have proposed here two deterministic models of Jatropha Curcas plant and Whitefly that simulate the dynamics of interaction between them where the distribution of Whitefly on plant follows Poisson distribution.In the first model growth rate of the plant is assumed to be in logistic form whereas in the second model it is taken as exponential form. The attack pattern and the growth of the whitefly are assumed as Holling type II function.The first model results a globally stable state and in the second one we find a globally attracting steady state for some parameter values,and a stable limit cycle for some other parameter values. It is also shown that there exist Hopf bifurcation with respect to some parameter values. The paper also discusses the question about persistence and permanence of the model. It is found that the specific growth rate of both the population and attack pattern of the whitefly governs the dynamics of both the models.","PeriodicalId":43601,"journal":{"name":"Nonlinear Phenomena in Complex Systems","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43163540","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
Primary Ionization Density Produced by Charged Fragments in the Working Volume of the Fission Chambers 裂变室工作容积中带电碎片产生的初级电离密度
IF 0.4
Nonlinear Phenomena in Complex Systems Pub Date : 2021-12-10 DOI: 10.33581/1561-4085-2021-24-4-329-337
A. A. Khrushchinsky, S. Kuten
{"title":"Primary Ionization Density Produced by Charged Fragments in the Working Volume of the Fission Chambers","authors":"A. A. Khrushchinsky, S. Kuten","doi":"10.33581/1561-4085-2021-24-4-329-337","DOIUrl":"https://doi.org/10.33581/1561-4085-2021-24-4-329-337","url":null,"abstract":"The question of the spatial distribution of ion pairs created by 235U fission fragments in the active volume of the fission chamber has been studied. The formulas of the spatial distribution of ion pairs in cylindrical fission chambers are proposed, which allows you to evaluate correctly the density of ion pairs in any point in the sensitive volume of the fission chamber","PeriodicalId":43601,"journal":{"name":"Nonlinear Phenomena in Complex Systems","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47242756","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
Structure of the plane waves for a spin 3/2 particle, massive and massless cases, gauge symmetry 自旋3/2粒子的平面波结构，大质量和无质量情况，规范对称
IF 0.4
Nonlinear Phenomena in Complex Systems Pub Date : 2021-12-10 DOI: 10.33581/1561-4085-2021-24-4-391-408
A. Ivashkevich
{"title":"Structure of the plane waves for a spin 3/2 particle, massive and massless cases, gauge symmetry","authors":"A. Ivashkevich","doi":"10.33581/1561-4085-2021-24-4-391-408","DOIUrl":"https://doi.org/10.33581/1561-4085-2021-24-4-391-408","url":null,"abstract":"The structure of the plane waves solutions for a relativistic spin 3/2 particle described by 16-component vector-bispinor is studied. In massless case, two representations are used: Rarita – Schwinger basis, and a special second basis in which the wave equation contains the Levi-Civita tensor. In the second representation it becomes evident the existence of gauge solutions in the form of 4-gradient of an arbitrary bispinor. General solution of the massless equation consists of six independent components, it is proved in an explicit form that four of them may be identified with the gauge solutions, and therefore may be removed. This procedure is performed in the Rarita – Schwinger basis as well. For the massive case, in Rarita – Schwinger basis four independent solutions are constructed explicitly.","PeriodicalId":43601,"journal":{"name":"Nonlinear Phenomena in Complex Systems","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45973323","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
Application of Multifractal Analysis for Research of Structural Materials 多重分形分析在结构材料研究中的应用
IF 0.4
Nonlinear Phenomena in Complex Systems Pub Date : 2021-12-10 DOI: 10.33581/1561-4085-2021-24-4-338-347
M. Kheifetz, V. Senyut, A. Kolmakov, B. Bazrov, S. Klimenko, M. Kopeikina
{"title":"Application of Multifractal Analysis for Research of Structural Materials","authors":"M. Kheifetz, V. Senyut, A. Kolmakov, B. Bazrov, S. Klimenko, M. Kopeikina","doi":"10.33581/1561-4085-2021-24-4-338-347","DOIUrl":"https://doi.org/10.33581/1561-4085-2021-24-4-338-347","url":null,"abstract":"Application of multifractal analysis for qualitative and quantitative description of structural materials is demonstrated. This makes it possible to evaluate the system’s characteristics of structures and to characterize the processes of self-organization in the materials. Formation of friction surface structures for aluminum alloys with Al2O3 and SiC additives in the scuffing mode is considered under comparable thermodynamic conditions. The addition of SiC, in comparison with Al2O3 , is less conducive to fragmentation and increase in the frequency of seizure and rupture processes. The addition of graphite into a composite material reinforced with SiC leads to increase in the degree of non-equilibrium of the thermodynamic conditions for the formation of the structures. Additional introduction of graphite further enhances the difference between materials with additions of Al2O3 and SiC, and this leads to the formation of the least ordered structures of the friction surface.","PeriodicalId":43601,"journal":{"name":"Nonlinear Phenomena in Complex Systems","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42356944","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
Turbulent Dispersion Simulation of Radioactive Aerosol Applied to the Infrastructure of the NPP-2006 Industrial Site 应用于NPP-2006工业场地基础设施的放射性气溶胶湍流扩散模拟
IF 0.4
Nonlinear Phenomena in Complex Systems Pub Date : 2021-12-10 DOI: 10.33581/1561-4085-2021-24-4-356-364
V. I. Orlovskaya, A. Trifonov
{"title":"Turbulent Dispersion Simulation of Radioactive Aerosol Applied to the Infrastructure of the NPP-2006 Industrial Site","authors":"V. I. Orlovskaya, A. Trifonov","doi":"10.33581/1561-4085-2021-24-4-356-364","DOIUrl":"https://doi.org/10.33581/1561-4085-2021-24-4-356-364","url":null,"abstract":"The goal of this work is to simulate the processes of transport and deposition of aerosol particles in a turbulent flow, taking into account the infrastructure of the industrial site of the NPP. The developed model for calculating the dynamics of the spread of the pollutant emissions in emergency situations is presented, the limits of applicability of turbulence models are determined and the main mechanical and thermal sources of turbulence in the NPP infrastructure are analyzed. The mechanisms of radioactive substances deposition for emergency situations have been assessed taking into account turbulent effects. According to the results of the numerical modeling, the zones of predominant deposition of radioactive aerosols on the characteristic surfaces of the NPP infrastructure have been determined, which is the basis for emergency actions planning and assessment of the personnel doses.","PeriodicalId":43601,"journal":{"name":"Nonlinear Phenomena in Complex Systems","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48799387","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
Stochastic Generalization of the Epidemiological SIR Model 流行病SIR模型的随机推广
IF 0.4
Nonlinear Phenomena in Complex Systems Pub Date : 2021-12-10 DOI: 10.33581/1561-4085-2021-24-4-409-414
Vladimir Obolonkin, A. Zherelo
{"title":"Stochastic Generalization of the Epidemiological SIR Model","authors":"Vladimir Obolonkin, A. Zherelo","doi":"10.33581/1561-4085-2021-24-4-409-414","DOIUrl":"https://doi.org/10.33581/1561-4085-2021-24-4-409-414","url":null,"abstract":"In this paper we propose stochastic modification of well-known in epidemiology SIR model. This modification allows us to simulate various scenarios of infection and can be used for the risk management.","PeriodicalId":43601,"journal":{"name":"Nonlinear Phenomena in Complex Systems","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49652157","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
Influence of Structural, Electronic and Spin Properties of ND[NV] - Surface Group Conjugates on Formation of Their Biological Activity: Quantum Chemical Simulations ND[NV] -表面基团共轭物的结构、电子和自旋性质对其生物活性形成的影响:量子化学模拟
IF 0.4
Nonlinear Phenomena in Complex Systems Pub Date : 2021-12-10 DOI: 10.33581/1561-4085-2021-24-4-348-355
A. Pushkarchuk, S. Kuten, S. Kilin, A. Nizovtsev, V. Pushkarchuk, D. Michels, D. Lyakhov, F. Jelezko
{"title":"Influence of Structural, Electronic and Spin Properties of ND[NV] - Surface Group Conjugates on Formation of Their Biological Activity: Quantum Chemical Simulations","authors":"A. Pushkarchuk, S. Kuten, S. Kilin, A. Nizovtsev, V. Pushkarchuk, D. Michels, D. Lyakhov, F. Jelezko","doi":"10.33581/1561-4085-2021-24-4-348-355","DOIUrl":"https://doi.org/10.33581/1561-4085-2021-24-4-348-355","url":null,"abstract":"To estimate possible biological activity of conjugates based on nanodiamond with an NV center inside (ND[NV]), with various functional groups located on its surface, their structural, electronic, and spin properties were calculated using the PM6 method. The energy gap between HOMO and LUMO of the complex was used as a main indicator of biological activity. It has been shown that complexes with OH or H groups attached to the (111) surface are most stable in an aqueous medium. Analysis of spin density and HOMO and LUMO localization shows that complexes ND[NV] may be not just an inert carrier of a biologically active drug or means of visualizing drug delivery, but are also directly involved in the formation of the biological activity of the conjugate.","PeriodicalId":43601,"journal":{"name":"Nonlinear Phenomena in Complex Systems","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47162256","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
Bremsstrahlung Calculations of Single Gauge-Boson Production on Linear Colliders in Context of "New Physics" Searching “新物理”探索背景下直线对撞机上单规范玻色子产生的韧致辐射计算
IF 0.4
Nonlinear Phenomena in Complex Systems Pub Date : 2021-12-10 DOI: 10.33581/1561-4085-2021-24-4-317-325
I. A. Shershan, T. Shishkina
{"title":"Bremsstrahlung Calculations of Single Gauge-Boson Production on Linear Colliders in Context of \"New Physics\" Searching","authors":"I. A. Shershan, T. Shishkina","doi":"10.33581/1561-4085-2021-24-4-317-325","DOIUrl":"https://doi.org/10.33581/1561-4085-2021-24-4-317-325","url":null,"abstract":"Differential and total cross sections of single gauge boson production in high energy electron-photon collisions obtained within the Standard Model in leading order and next-to-leading order are presented. Soft photon bremsstrahlung as well as hard photon bremsstrahlung parts were considered using the dimensional regularization procedure. Special features of receiving the hard bremsstrahlung convergent contribution are discussed. The corresponding anomalous gauge boson couplings were studied in the effective Lagrangian approach. Best conditions for registration of effects beyond the Standard Model are determined.","PeriodicalId":43601,"journal":{"name":"Nonlinear Phenomena in Complex Systems","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45670222","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
Inter-event Times Statistic in Stationary Processes: Nonlinear ARMA Modeling of Wind Speed Time Series 平稳过程中的事件间时间统计：风速时间序列的非线性ARMA建模
IF 0.4
Nonlinear Phenomena in Complex Systems Pub Date : 2021-12-10 DOI: 10.33581/1561-4085-2021-24-4-370-381
C. Cammarota
{"title":"Inter-event Times Statistic in Stationary Processes: Nonlinear ARMA Modeling of Wind Speed Time Series","authors":"C. Cammarota","doi":"10.33581/1561-4085-2021-24-4-370-381","DOIUrl":"https://doi.org/10.33581/1561-4085-2021-24-4-370-381","url":null,"abstract":"The random sequence of inter-event times of a level-crossing is a statistical tool that can be used to investigate time series from complex phenomena. Typical features of observed series as the skewed distribution and long range correlations are modeled using non linear transformations applied to Gaussian ARMA processes. We investigate the distribution of the inter-event times of the level-crossing events in ARMA processes in function of the probability corresponding to the level. For Gaussian ARMA processes we establish a representation of this indicator, prove its symmetry and that it is invariant with respect to the application of a non linear monotonic transformation. Using simulated series we provide evidence that the symmetry disappears if a non monotonic transformation is applied to an ARMA process. We estimate this indicator in wind speed time series obtained from three different databases. Data analysis provides evidence that the indicator is non symmetric, suggesting that only highly non linear transformations of ARMA processes can be used in modeling. We discuss the possible use of the inter-event times in the prediction task.","PeriodicalId":43601,"journal":{"name":"Nonlinear Phenomena in Complex Systems","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47345367","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
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