CALCULATION OF THE PASSAGE OF FLOODS THROUGH THE WATERWORKS BALANOVSKY RESERVOIR

2020 ◽  
Author(s):  
T.V. Ivankova ◽  
◽  
V.A. Volosukhin ◽  
Keyword(s):  
Mathematical Models ◽  
Surface Runoff ◽  
Maximum Rate ◽  
Hydrodynamic Modeling ◽  
Existing Structures ◽  
Flood Regime

The characteristic of the Crimean rivers for which the flood regime is characteristic is given. In 1974, the Balanovskoye reservoir was built on the Zuya river to meet the needs of the district's agriculture. The data on the calculation of the passage of floods through the hydroelectric Balanovsky reservoir, belonging to the II class of danger. Calibration of the maximum rate, according to the SP and 0.1% of the EAP. The assessment and 0.01% of the EAP of the flood pass by the existing structures of the hydroelectric facility was carried out. It is recommended to organize continuous observations of all parameters on the network of automatic stations, which will most fully characterize the entire situation in the basin and in its various sections, as well as provide information to a set of mathematical models for hydrodynamic modeling of surface runoff and channel runoff to intermediate branches, to assess the risks of dangerous hydrological phenomena in various parts of the basin with sufficient advance.

Reconstruction of Historical Timber Roofs at Žehušice Castle

2015 ◽  
Vol 1122 ◽  
pp. 19-22
Author(s):  
Rostislav Zídek ◽  
Aleš Utíkal ◽  
Ivana Utíkalová ◽  
Luděk Brdečko ◽  
Helena Brdečková
Keyword(s):  
Mathematical Models ◽  
Computational Models ◽  
Structural Systems ◽  
Static Behavior ◽  
Existing Structures ◽  
Fungal Attack ◽  
National Heritage ◽  
Distribution Of Stresses

The paper presents some aspects of the reconstruction of timber roofs at Žehušice Castle. The roofs were built at different times and using various types of structural systems. Many timber elements of the roofs have been heavily damaged by previous unprofessional alterations to them, or, more often, by neglected maintenance and subsequent fungal attack caused by massive leaking. Because of the requirements of the National Heritage Institute it was necessary to be sensitive to the existing structures and minimize changes to them during the reconstruction of the roofs. In order to successfully achieve this, it was necessary to understand the distribution of stresses in the structure and its static behavior as well as possible. Therefore, 3D computational models were developed. On the basis of the obtained results, it was decided whether roof elements would be replaced or only parts of them. However, the informative value of relatively complicated mathematical models appeared to be limited.

Statistical Analysis, Estimation, and Optimization of Surface Finish in the Grinding Process

1974 ◽  
Vol 96 (1) ◽  
pp. 117-123 ◽  
Author(s):  
M. E. Zohdi
Keyword(s):  
Statistical Analysis ◽  
Mathematical Models ◽  
Surface Finish ◽  
Maximum Rate ◽  
Grinding Process ◽  
Combined Effects ◽  
Optimum Conditions ◽  
The Individual ◽  
Dependent Factor

A method of identifying the individual as well as the combined effects of the different independent factors on the surface finish in the grinding process is presented. Physical experimentation coupled with subsequent statistical analysis, the factorial experimentation technique, were applied to further the understanding of this process. Mathematical models were developed to estimate the quality of the dependent factor, the surface finish. Optimum conditions that result in the best surface finish with the maximum rate of metal removed are evaluated and discussed.

A comparison of mathematical models for chemical transfer from soil to surface runoff with the impact of rain

CATENA ◽  
2016 ◽  
Vol 137 ◽  
pp. 191-202 ◽  
Author(s):  
Ting Yang ◽  
Quanjiu Wang ◽  
Yanli Liu ◽  
Pengyu Zhang ◽  
Laosheng Wu
Keyword(s):  
Mathematical Models ◽  
Surface Runoff ◽  
Chemical Transfer ◽  
The Impact

scholarly journals COVID-19: Predictive Mathematical Models for the Number of Deaths in South Korea, Italy, Spain, France, UK, Germany, and USA

2020 ◽  
Author(s):  
Athanasios S. Fokas ◽  
Nikolaos Dikaios ◽  
George A. Kastis
Keyword(s):  
South Korea ◽  
Mathematical Models ◽  
Time Evolution ◽  
Maximum Rate ◽  
Cumulative Number ◽  
Using Data ◽  
Number Of Individuals

AbstractWe have recently introduced two novel mathematical models for characterizing the dynamics of the cumulative number of individuals in a given country reported to be infected with COVID-19. Here we show that these models can also be used for determining the time-evolution of the associated number of deaths. In particular, using data up to around the time that the rate of deaths reaches a maximum, these models provide estimates for the time that a plateau will be reached signifying that the epidemic is approaching its end, as well as for the cumulative number of deaths at that time. The plateau is defined to occur when the rate of deaths is 5% of the maximum rate. Results are presented for South Korea, Italy, Spain, France, UK, Germany, and USA. The number of COVID-19 deaths in other counties can be analyzed similarly.

Neuronal and Extraneuronal Uptake of 3H-Norepinephrine in the Heart of the Active Bat: An Electron Microscopic Radioautographic Study

1973 ◽  
Vol 31 ◽  
pp. 522-523
Author(s):  
Martin Hagopian ◽  
Michael D. Gershon ◽  
Eladio A. Nunez
Keyword(s):  
Smooth Muscle ◽  
Monoamine Oxidase ◽  
Vascular Smooth Muscle ◽  
Cardiac Muscle ◽  
Maximum Rate ◽  
External Medium ◽  
Extraneuronal Uptake ◽  
Electron Microscopic ◽  
Cardiac Tissues ◽  
High Affinity

The ability of cardiac tissues to take up norepinephrine from an external medium is well known. Two mechanisms, called Uptake and Uptake respectively by Iversen have been differentiated. Uptake is a high affinity system associated with adrenergic neuronal elements. Uptake is a low affinity system, with a higher maximum rate than that of Uptake. Uptake has been associated with extraneuronal tissues such as cardiac muscle, fibroblasts or vascular smooth muscle. At low perfusion concentrations of norepinephrine most of the amine taken up by Uptake is metabolized. In order to study the localization of sites of norepinephrine storage following its uptake in the active bat heart, tritiated norepinephrine (2.5 mCi; 0.064 mg) was given intravenously to 2 bats. Monoamine oxidase had been inhibited with pheniprazine (10 mg/kg) one hour previously to decrease metabolism of norepinephrine.

Autism and Neurodiversity: Addressing Concerns and Offering Implications for the School-Based Speech-Language Pathologist

2020 ◽  
pp. 1-7
Author(s):  
Laura S. DeThorne ◽  
Kelly Searsmith
Keyword(s):  
Service Provision ◽  
Individualized Education Program ◽  
Institutional Constraints ◽  
Individualized Education ◽  
Existing Structures ◽  
Eligibility Determination ◽  
Speech Language Pathologist ◽  
School Based ◽  
Key Points ◽  
C Center

Purpose The purpose of this article is to address some common concerns associated with the neurodiversity paradigm and to offer related implications for service provision to school-age autistic students. In particular, we highlight the need to (a) view first-person autistic perspectives as an integral component of evidence-based practice, (b) use the individualized education plan as a means to actively address environmental contributions to communicative competence, and (c) center intervention around respect for autistic sociality and self-expression. We support these points with cross-disciplinary scholarship and writings from autistic individuals. Conclusions We recognize that school-based speech-language pathologists are bound by institutional constraints, such as eligibility determination and Individualized Education Program processes that are not inherently consistent with the neurodiversity paradigm. Consequently, we offer examples for implementing the neurodiversity paradigm while working within these existing structures. In sum, this article addresses key points of tension related to the neurodiversity paradigm in a way that we hope will directly translate into improved service provision for autistic students. Supplemental Material https://doi.org/10.23641/asha.13345727

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