Search results for "Uncorrelated"

showing 3 items of 23 documents

A Non-WSSUS Mobile-to-Mobile Channel Model Assuming Velocity Variations of the Mobile Stations

2017

This paper aims to characterize the effects that the velocity variations of the mobile stations (MSs) produce on the correlation properties of non-stationary time-frequency (TF) dispersive mobile- to-mobile (M2M) fading channels. Toward that end, we propose a novel geometrical model for non-wide-sense stationary uncorrelated scattering (non-WSSUS) M2M channels that incorporates such variations following a plane wave propagation approach. Capitalizing on the mathematical simplicity of this approach, we derive a general expression for the four-dimensional (4D) TF correlation function (TFCF) of the proposed channel model. From this expression, we analyze the influence of the MSs' acceleration#…

Vehicular communication systemsMobile channelComputer scienceScattering020206 networking & telecommunications020302 automobile design & engineering02 engineering and technologyTopologyExpression (mathematics)UncorrelatedCorrelation function (statistical mechanics)0203 mechanical engineeringComputer Science::Networking and Internet Architecture0202 electrical engineering electronic engineering information engineeringFadingSimulationComputer Science::Information TheoryCommunication channel2017 IEEE Wireless Communications and Networking Conference (WCNC)
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Relationship between Metabolic Fluxes and Sequence-Derived Properties of Enzymes

2014

Metabolic fluxes are key parameters of metabolic pathways being closely related to the kinetic properties of enzymes, thereby could be dependent on. This study examines possible relationships between the metabolic fluxes and the physical-chemical/structural features of enzymes from the yeast Saccharomyces cerevisiae glycolysis pathway. Metabolic fluxes were quantified by the COPASI tool using the kinetic models of Hynne and Teusink at varied concentrations of external glucose. The enzyme sequences were taken from the UniProtKB and the average amino acid (AA) properties were computed using the set of Georgiev’s uncorrelated scales that satisfy the VARIMAX criterion and specific AA indices th…

chemistry.chemical_classificationbiologyArticle SubjectSaccharomyces cerevisiaebiology.organism_classificationYeastUncorrelatedAmino acidMetabolic pathwayEnzymechemistryBiochemistryLinear regressionGlycolysisResearch ArticleInternational Scholarly Research Notices
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Reduced regional systolic function evolved compacted segments in noncompaction

2010

Abstract In a recent report about noncompaction Nemes et al. reported that systolic left ventricular (LV) dysfunction assessed using the wall motion score during 2D echocardiography in noncompaction is not confined to noncompacted LV segments. These results confirmed some published reports of our group. Recently we analyzed a population of 238 patients affected by noncompaction, and demonstrated that the number of noncompacted segment is uncorrelated with the degree of systolic dysfunction. It is an attractive hypothesis that the systolic dysfunction could be depend on the fibrosis of the left ventricle, itself a consequence of microcirculatory dysfunction, which has been confirmed by repor…

education.field_of_studymedicine.medical_specialtymedicine.diagnostic_testbusiness.industryPopulationSystolic functionScintigraphymedicine.diseaseUncorrelatedmedicine.anatomical_structure2d echocardiographysystolic function noncompactionFibrosisVentricleInternal medicinemedicineCardiologyWall motionCardiology and Cardiovascular Medicineeducationbusiness
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