Pub Date : 2015-10-01DOI: 10.1109/SIBIRCON.2015.7361851
Berkin B. Alexander, Deryabina V. Vera, Veselov V. Sergei
The change of the calcium phosphate film surface morphology depending on the mode of deposition and subsequent thermal annealing are investigated. It is shown that depending on the crystallization degree of the film surface roughness ranges from Ra = 0.007 um, RV = 0.05 um to Ra = 0.095 um, RV = 0.3 um. Depending on crystallization degree the potential from +1.5 to -1 V is formed on film surface.
{"title":"Nanostructured calcium phosphate coatings for medical implants","authors":"Berkin B. Alexander, Deryabina V. Vera, Veselov V. Sergei","doi":"10.1109/SIBIRCON.2015.7361851","DOIUrl":"https://doi.org/10.1109/SIBIRCON.2015.7361851","url":null,"abstract":"The change of the calcium phosphate film surface morphology depending on the mode of deposition and subsequent thermal annealing are investigated. It is shown that depending on the crystallization degree of the film surface roughness ranges from Ra = 0.007 um, RV = 0.05 um to Ra = 0.095 um, RV = 0.3 um. Depending on crystallization degree the potential from +1.5 to -1 V is formed on film surface.","PeriodicalId":6503,"journal":{"name":"2015 International Conference on Biomedical Engineering and Computational Technologies (SIBIRCON)","volume":"1 1","pages":"59-61"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90864331","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}
Pub Date : 2015-10-01DOI: 10.1109/SIBIRCON.2015.7361862
S. Kabanikhin, D. Voronov, O. Krivorotko, A. Y. Belonog, A. Ilyin
The minimal model of insulin secretion based on C-peptide data (Toffolo et al., 1995) is presented in this report. The secretion model is identified on C-peptide taken in plasma; it must be integrated into a model of whole-body C-peptide kinetics. The kinetic model is the one proposed by (Eaton et al., 1980) and consists of 2 compartments. Compartment 1, accessible to measurement, represents plasma and rapidly equilibrating tissues, whereas compartment 2 represents tissues in slow exchange with plasma. This model allows estimating distribution of insulin in the blood and tissues. A new iterative algorithm for finding kinetic constants and secretion parameters is proposed. Numerical solution of inverse problem was obtained by using synthetic data. Different levels of noise were added to such data. The question of initial approximation is covered in this talk).
本报告提出了基于c肽数据的胰岛素分泌最小模型(Toffolo et al.， 1995)。通过血浆c肽测定，确定了c肽的分泌模式;它必须整合到一个全身c肽动力学模型中。动力学模型由(Eaton et al.， 1980)提出，由2个隔室组成。可测量的室1代表等离子体和快速平衡组织，而室2代表与等离子体缓慢交换的组织。这个模型可以估计胰岛素在血液和组织中的分布。提出了一种新的求解动力学常数和分泌参数的迭代算法。利用合成数据得到了反问题的数值解。这些数据中加入了不同程度的噪声。初值近似的问题将在本次演讲中讨论。
{"title":"Numerical solution of inverse problem for secretion and kinetics of C-peptide model","authors":"S. Kabanikhin, D. Voronov, O. Krivorotko, A. Y. Belonog, A. Ilyin","doi":"10.1109/SIBIRCON.2015.7361862","DOIUrl":"https://doi.org/10.1109/SIBIRCON.2015.7361862","url":null,"abstract":"The minimal model of insulin secretion based on C-peptide data (Toffolo et al., 1995) is presented in this report. The secretion model is identified on C-peptide taken in plasma; it must be integrated into a model of whole-body C-peptide kinetics. The kinetic model is the one proposed by (Eaton et al., 1980) and consists of 2 compartments. Compartment 1, accessible to measurement, represents plasma and rapidly equilibrating tissues, whereas compartment 2 represents tissues in slow exchange with plasma. This model allows estimating distribution of insulin in the blood and tissues. A new iterative algorithm for finding kinetic constants and secretion parameters is proposed. Numerical solution of inverse problem was obtained by using synthetic data. Different levels of noise were added to such data. The question of initial approximation is covered in this talk).","PeriodicalId":6503,"journal":{"name":"2015 International Conference on Biomedical Engineering and Computational Technologies (SIBIRCON)","volume":"21 1","pages":"108-112"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86100742","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}
Pub Date : 2015-10-01DOI: 10.1109/SIBIRCON.2015.7361875
I. Selyutina, T. Ryzhikova, N. Urtegeshev, A. Dobrinina, A. Letyagin, A. Shevela
The study of the sound systems of the minority languages of the peoples of Siberia and the adjacent regions is based on the supposition that the articulatory-acoustic database being an attribute of ethnicity is a potential historical and linguistic source in the reconstruction of ethno-genetic processes. Instrumental methods have been used by the Novosibirsk phoneticians in the study of sound systems since the late 1960s. Since 2009, researchers from the three institutes of the Siberian branch of the Russian Academy of Sciences both of a philological and medical profile have been conducting a comprehensive interdisciplinary study of articulatory-acoustic bases of indigenous Siberian populations, using Magnetic-Resonance Imaging, digital Roentgenography and Laryngography1, An electronic database including somatic material on 46 idioms (languages, dialects and sub-dialects) has been created. The results of the study made adjustments to the traditional view of scientists about the Genesis of the autochthonous minority ethnic groups and their languages.
{"title":"Innovative technologies in the study of articulatory-acoustic bases of indigenous ethnoses of Siberia (MRI, digital roentgenography and laryngography investigation)","authors":"I. Selyutina, T. Ryzhikova, N. Urtegeshev, A. Dobrinina, A. Letyagin, A. Shevela","doi":"10.1109/SIBIRCON.2015.7361875","DOIUrl":"https://doi.org/10.1109/SIBIRCON.2015.7361875","url":null,"abstract":"The study of the sound systems of the minority languages of the peoples of Siberia and the adjacent regions is based on the supposition that the articulatory-acoustic database being an attribute of ethnicity is a potential historical and linguistic source in the reconstruction of ethno-genetic processes. Instrumental methods have been used by the Novosibirsk phoneticians in the study of sound systems since the late 1960s. Since 2009, researchers from the three institutes of the Siberian branch of the Russian Academy of Sciences both of a philological and medical profile have been conducting a comprehensive interdisciplinary study of articulatory-acoustic bases of indigenous Siberian populations, using Magnetic-Resonance Imaging, digital Roentgenography and Laryngography1, An electronic database including somatic material on 46 idioms (languages, dialects and sub-dialects) has been created. The results of the study made adjustments to the traditional view of scientists about the Genesis of the autochthonous minority ethnic groups and their languages.","PeriodicalId":6503,"journal":{"name":"2015 International Conference on Biomedical Engineering and Computational Technologies (SIBIRCON)","volume":"8 1","pages":"165-170"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81792136","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}
Pub Date : 2015-10-01DOI: 10.1109/SIBIRCON.2015.7361871
O. V. Grishin, V. Gultyaeva, D. Uryumtsev, M. Zinchenko, V. Grishin
INTRODUCTION: Chronic obstructive pulmonary disease (COPD) is diagnosed in later or very advanced stages. The aim of the study was to evaluate feasibility of low respiratory resistive load (LRRL) in patients with COPD for a new objective method of early COPD diagnostics and to examine changes in pulmonary gas exchange during LRRL. METHODS: The study involved eleven patients with mild or moderate COPD and fourteen healthy adult volunteers. After anthropometric and spirometric measuring, pulmonary gas exchange was measured for 7 minutes using the breath-by-breath method under two conditions: 1) without respiratory resistive load (WRL); 2) with LRRL 0.4 cm H2O · l-1 · s. Valve system (Intersurgical, UK) was used as a resistive device. RESULTS: Decrease in oxygen consumption (VO2) and carbon dioxide production (VCO2) during LRRL was significantly greater in COPD patients than in healthy subjects (14 vs. 8 %, p<;0.009 and 16 vs. 10 %, p<;0.020 respectively). In contrast, tidal volume increased by 13 % in healthy subjects only. CONCLUSION: Pulmonary gas exchange shift during low respiratory resistive load appears to be a feasible criterion of early COPD diagnostics. Future research is needed to examine sensitivity and specificity of the method.
慢性阻塞性肺疾病(COPD)在晚期或非常晚期被诊断出来。本研究的目的是评估低呼吸阻力负荷(LRRL)在COPD患者中作为一种新的、客观的COPD早期诊断方法的可行性，并研究LRRL期间肺气体交换的变化。方法:该研究纳入了11名轻中度COPD患者和14名健康成人志愿者。在人体测量和肺活量测量后，在两种情况下，采用呼吸法测量肺气体交换7分钟:1)无呼吸阻力负荷(WRL);2) LRRL为0.4 cm H2O·l-1·s。采用英国Intersurgical公司的瓣膜系统作为电阻装置。结果:COPD患者在LRRL期间的耗氧量(VO2)和二氧化碳产生(VCO2)的下降明显大于健康受试者(分别为14%比8%，p< 0.009和16%比10%，p< 0.020)。相比之下，只有健康受试者的潮气量增加了13%。结论:低呼吸阻力负荷时肺气体交换移位是COPD早期诊断的可行标准。需要进一步的研究来检验该方法的敏感性和特异性。
{"title":"Diagnostic use of the resistive device in COPD patients","authors":"O. V. Grishin, V. Gultyaeva, D. Uryumtsev, M. Zinchenko, V. Grishin","doi":"10.1109/SIBIRCON.2015.7361871","DOIUrl":"https://doi.org/10.1109/SIBIRCON.2015.7361871","url":null,"abstract":"INTRODUCTION: Chronic obstructive pulmonary disease (COPD) is diagnosed in later or very advanced stages. The aim of the study was to evaluate feasibility of low respiratory resistive load (LRRL) in patients with COPD for a new objective method of early COPD diagnostics and to examine changes in pulmonary gas exchange during LRRL. METHODS: The study involved eleven patients with mild or moderate COPD and fourteen healthy adult volunteers. After anthropometric and spirometric measuring, pulmonary gas exchange was measured for 7 minutes using the breath-by-breath method under two conditions: 1) without respiratory resistive load (WRL); 2) with LRRL 0.4 cm H2O · l-1 · s. Valve system (Intersurgical, UK) was used as a resistive device. RESULTS: Decrease in oxygen consumption (VO2) and carbon dioxide production (VCO2) during LRRL was significantly greater in COPD patients than in healthy subjects (14 vs. 8 %, p<;0.009 and 16 vs. 10 %, p<;0.020 respectively). In contrast, tidal volume increased by 13 % in healthy subjects only. CONCLUSION: Pulmonary gas exchange shift during low respiratory resistive load appears to be a feasible criterion of early COPD diagnostics. Future research is needed to examine sensitivity and specificity of the method.","PeriodicalId":6503,"journal":{"name":"2015 International Conference on Biomedical Engineering and Computational Technologies (SIBIRCON)","volume":"1 4 1","pages":"146-149"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78537166","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}
Pub Date : 2015-10-01DOI: 10.1109/SIBIRCON.2015.7361868
A. Kolonin
The paper describes different cases of combination of statistical, rule-based and pattern-based approaches for text classification, entity extraction and discernment of entity properties applied to medical domain.
{"title":"Automatic text classification and property extraction applications in medicine","authors":"A. Kolonin","doi":"10.1109/SIBIRCON.2015.7361868","DOIUrl":"https://doi.org/10.1109/SIBIRCON.2015.7361868","url":null,"abstract":"The paper describes different cases of combination of statistical, rule-based and pattern-based approaches for text classification, entity extraction and discernment of entity properties applied to medical domain.","PeriodicalId":6503,"journal":{"name":"2015 International Conference on Biomedical Engineering and Computational Technologies (SIBIRCON)","volume":"96 1","pages":"133-137"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77269388","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}
Pub Date : 2015-10-01DOI: 10.1109/SIBIRCON.2015.7361866
V. Yurkevich
Problem of active exoskeleton control system design is discussed. The presented design methodology of the tracking PID multivariable controller for active exoskeleton control system is based on time-scale separation technique (singular perturbation technique). The required control accuracy, almost perfect rejection of nonlinearities, unknown external disturbances, and interactions between exoskeleton joints are provided due to increase of time-scale separation degree between the fast and slow modes that are artificially forced in the closed-loop control system. Simulation results for trajectory tracking control of a two-link exoskeleton manipulator are presented as an example of the proposed design methodology application.
{"title":"Active exoskeleton tracking control system design via singular perturbation technique","authors":"V. Yurkevich","doi":"10.1109/SIBIRCON.2015.7361866","DOIUrl":"https://doi.org/10.1109/SIBIRCON.2015.7361866","url":null,"abstract":"Problem of active exoskeleton control system design is discussed. The presented design methodology of the tracking PID multivariable controller for active exoskeleton control system is based on time-scale separation technique (singular perturbation technique). The required control accuracy, almost perfect rejection of nonlinearities, unknown external disturbances, and interactions between exoskeleton joints are provided due to increase of time-scale separation degree between the fast and slow modes that are artificially forced in the closed-loop control system. Simulation results for trajectory tracking control of a two-link exoskeleton manipulator are presented as an example of the proposed design methodology application.","PeriodicalId":6503,"journal":{"name":"2015 International Conference on Biomedical Engineering and Computational Technologies (SIBIRCON)","volume":"54 1","pages":"124-129"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86786749","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}
Pub Date : 2015-10-01DOI: 10.1109/SIBIRCON.2015.7361861
A. Bocharov, Q. A. Bogomaz, A. Savostyanov, G. Knyazev, A. Budakova, M. Zaleshin, T. Astakhova
Moral judgment can be defined as the evaluation of actions with respect to norms and values established in a society. In the modern world, morality is considered as the social capital, which determines a level of society well-being. Participants were showed 24 moral dilemma and 24 control task vignettes represented artist-sketched cartoons of control and dilemma scenarios. For all participants and every experimental condition, the model of localization equivalent dipoles electroenæphalogram (EEG) components was made. Individual localization of EEG electrodes was matched with a model of localization of electrodes of head, which was used for determining the equivalent dipoles. Event-related spectral perturbations were calculated to estimate induced responses via the EEGLAB toolbox. The dataset was prepared for clustering by the original PCA method. The correction for multiple comparisons was made by the False Discovery Rate method. To determine the correlations cortical sources of EEG activity with Social Intellect, sLORETA was applied to the data. Differences between moral dilemmas and control tasks without moral choice were found in delta, theta, alpha and beta diapasons in clusters localized in temporal and frontal lobe. Social intellect positively correlated with difference between the test interval and the baseline during making moral dilemma choice in theta in the left middle temporal gyrus and beta in the left middle frontal gyrus.
{"title":"Clustering of independent components of EEG in determining individual characteristics of reactions related to a moral choice","authors":"A. Bocharov, Q. A. Bogomaz, A. Savostyanov, G. Knyazev, A. Budakova, M. Zaleshin, T. Astakhova","doi":"10.1109/SIBIRCON.2015.7361861","DOIUrl":"https://doi.org/10.1109/SIBIRCON.2015.7361861","url":null,"abstract":"Moral judgment can be defined as the evaluation of actions with respect to norms and values established in a society. In the modern world, morality is considered as the social capital, which determines a level of society well-being. Participants were showed 24 moral dilemma and 24 control task vignettes represented artist-sketched cartoons of control and dilemma scenarios. For all participants and every experimental condition, the model of localization equivalent dipoles electroenæphalogram (EEG) components was made. Individual localization of EEG electrodes was matched with a model of localization of electrodes of head, which was used for determining the equivalent dipoles. Event-related spectral perturbations were calculated to estimate induced responses via the EEGLAB toolbox. The dataset was prepared for clustering by the original PCA method. The correction for multiple comparisons was made by the False Discovery Rate method. To determine the correlations cortical sources of EEG activity with Social Intellect, sLORETA was applied to the data. Differences between moral dilemmas and control tasks without moral choice were found in delta, theta, alpha and beta diapasons in clusters localized in temporal and frontal lobe. Social intellect positively correlated with difference between the test interval and the baseline during making moral dilemma choice in theta in the left middle temporal gyrus and beta in the left middle frontal gyrus.","PeriodicalId":6503,"journal":{"name":"2015 International Conference on Biomedical Engineering and Computational Technologies (SIBIRCON)","volume":"109 1","pages":"104-107"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74966610","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}
Pub Date : 2015-10-01DOI: 10.1109/SIBIRCON.2015.7361884
D. Palchunov, G. Yakhyaeva, O. Yasinskaya
The paper describes the Diagnostic Panel Software System designed for the “spinal deformity and degenerative diseases of the spine” subject domain. The work is based on the methods of statistical processing of the data obtained from medical documents written in a natural language. The software system based on patient's clinical and laboratory test results helps physicians determine a preliminary diagnosis of the patient and get quick information on the necessity of certain measures for final diagnosis and selection of the optimal treatment strategy. The Diagnostic Panel Software System uses case-based approach for the representation of knowledge extracted from a variety of natural language texts. Developed case-based approach is based on model-theoretic methods of subject domain ontology formalization. For the processing of knowledge represented in system the formal concept analysis methodology is used.
{"title":"Software system for the diagnosis of the spine diseases using case-based reasoning","authors":"D. Palchunov, G. Yakhyaeva, O. Yasinskaya","doi":"10.1109/SIBIRCON.2015.7361884","DOIUrl":"https://doi.org/10.1109/SIBIRCON.2015.7361884","url":null,"abstract":"The paper describes the Diagnostic Panel Software System designed for the “spinal deformity and degenerative diseases of the spine” subject domain. The work is based on the methods of statistical processing of the data obtained from medical documents written in a natural language. The software system based on patient's clinical and laboratory test results helps physicians determine a preliminary diagnosis of the patient and get quick information on the necessity of certain measures for final diagnosis and selection of the optimal treatment strategy. The Diagnostic Panel Software System uses case-based approach for the representation of knowledge extracted from a variety of natural language texts. Developed case-based approach is based on model-theoretic methods of subject domain ontology formalization. For the processing of knowledge represented in system the formal concept analysis methodology is used.","PeriodicalId":6503,"journal":{"name":"2015 International Conference on Biomedical Engineering and Computational Technologies (SIBIRCON)","volume":"1 1","pages":"205-210"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91329343","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}
Pub Date : 2015-10-01DOI: 10.1109/SIBIRCON.2015.7361879
K. Sabelfeld
A stochastic algorithm for simulation of fluctuation-induced enzyme kinetics is developed. The method is generally well applicable when the reactions occur in low-dimensional and disordered media such as biological ones. We suggest a generalization of the Michaelis - Menten scheme of enzyme kinetics that is extended to simulate the quantum tunneling phenomena in the catalytic cycles of enzymatic processes. The stochastic method is suggested as a generalization of the technique developed in our recent studies [12], [13] where this method was developed to describe the annihilation of spatially separate electrons and holes in a disordered semiconductor. The stochastic technique is based on the spatially inhomogeneous, nonlinear integro-differential Smoluchowski equations with random source term. We focus in this study on the spatial distribution, and numerically investigate the segregation in the case of a source with a continuous generation in time and randomly distributed in space. The stochastic particle method presented is based on a probabilistic interpretation of the underlying process as a stochastic Markov process of interacting particle system in discrete but randomly progressed time instances. The segregation is analyzed through the correlation analysis of the vector random field of concentrations which appears to be isotropic in space and stationary in time.
{"title":"Stochastic simulation of fluctuation-induced enzyme kinetics in vicinity of traps, based on probabilistic tunneling and diffusion mechanisms","authors":"K. Sabelfeld","doi":"10.1109/SIBIRCON.2015.7361879","DOIUrl":"https://doi.org/10.1109/SIBIRCON.2015.7361879","url":null,"abstract":"A stochastic algorithm for simulation of fluctuation-induced enzyme kinetics is developed. The method is generally well applicable when the reactions occur in low-dimensional and disordered media such as biological ones. We suggest a generalization of the Michaelis - Menten scheme of enzyme kinetics that is extended to simulate the quantum tunneling phenomena in the catalytic cycles of enzymatic processes. The stochastic method is suggested as a generalization of the technique developed in our recent studies [12], [13] where this method was developed to describe the annihilation of spatially separate electrons and holes in a disordered semiconductor. The stochastic technique is based on the spatially inhomogeneous, nonlinear integro-differential Smoluchowski equations with random source term. We focus in this study on the spatial distribution, and numerically investigate the segregation in the case of a source with a continuous generation in time and randomly distributed in space. The stochastic particle method presented is based on a probabilistic interpretation of the underlying process as a stochastic Markov process of interacting particle system in discrete but randomly progressed time instances. The segregation is analyzed through the correlation analysis of the vector random field of concentrations which appears to be isotropic in space and stationary in time.","PeriodicalId":6503,"journal":{"name":"2015 International Conference on Biomedical Engineering and Computational Technologies (SIBIRCON)","volume":"124 1","pages":"186-190"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77458597","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}
Pub Date : 2015-10-01DOI: 10.1109/SIBIRCON.2015.7361886
Kirill Chagin, A. Savostyanov
In the analysis of a brain activity it is actual to find time intervals that represents only brain activity. We have developed a new software instrument that helps to search and visualize such intervals. The base assumption of this work is that distribution of the amplitude of signal that represents brain activity is significantly different from a Gaussian distribution. So we use negentropy as an indicator of intervals of brain dynamics. As a result, the developed instrument helps to analyze EEG information visually and make further mathematical calculations with the results.
{"title":"Searching and using of time intervals of brain activity in a problem of solving process by estimation of negentropy of EEG","authors":"Kirill Chagin, A. Savostyanov","doi":"10.1109/SIBIRCON.2015.7361886","DOIUrl":"https://doi.org/10.1109/SIBIRCON.2015.7361886","url":null,"abstract":"In the analysis of a brain activity it is actual to find time intervals that represents only brain activity. We have developed a new software instrument that helps to search and visualize such intervals. The base assumption of this work is that distribution of the amplitude of signal that represents brain activity is significantly different from a Gaussian distribution. So we use negentropy as an indicator of intervals of brain dynamics. As a result, the developed instrument helps to analyze EEG information visually and make further mathematical calculations with the results.","PeriodicalId":6503,"journal":{"name":"2015 International Conference on Biomedical Engineering and Computational Technologies (SIBIRCON)","volume":"72 1","pages":"217-220"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74182404","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}
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