scholarly journals Overflows of Elastic Traffic

2017 ◽  
Vol 22 (1) ◽  
pp. 13-26
Author(s):  
Mariusz Głąbowski ◽  
Damian Kmiecik

Abstract This article presents the results of a study on hierarchical multiservice traffic overflow systems. The systems under investigation were composed of a number of primary resources and one alternative resource. Traffic in the considered systems was generated with the assumption that there was a finite number of traffic sources in individual classes. Further assumption was that offered traffic is elastic traffic for which – with an increase of the load of the system – a change in the volume of allocated resources is possible followed by concurrent extension of their service time. The article includes the results that present the blocking probability in the sample elastic traffic overflow systems. The study focuses on a determination of the influence of the traffic intensity, volume of resources, degree of compression, resource with compression (primary resources, alternative resources) and the cardinality of traffic sources on values of the blocking probability in individual call classes and on the number of calls that overflow to the alternative resource.


2012 ◽  
Vol 2012 ◽  
pp. 1-17 ◽  
Author(s):  
Mariusz Głąbowski ◽  
Maciej Stasiak ◽  
Joanna Weissenberg

The paper proposes a formal derivation of recurrent equations describing the occupancy distribution in the full-availability group with multirate Binomial-Poisson-Pascal (BPP) traffic. The paper presents an effective algorithm for determining the occupancy distribution on the basis of derived recurrent equations and for the determination of the blocking probability as well as the loss probability of calls of particular classes of traffic offered to the system. A proof of the convergence of the iterative process of estimating the average number of busy traffic sources of particular classes is also given in the paper.



Experiments in which single particles are studied with the aid of counters would, in principle, lead to an exact determination of the statistical laws governing the behaviour of these particles if the number of counted particles were infinitely large. With a finite number of counts, however, a finite statistical error will always remain. This error depends upon the number of counts and upon the way in which one makes use of the counter readings to calculate the parameters entering into the statistical laws. The purpose of the following investigation is to show for some typical cases which way of calculating has to be adopted in order to make the error a minimum.



Author(s):  
Roman Malo

Nowadays, a problem of an e- technologies’ implementation represents one of the most important questions that are being solved within various subjects from business area. With respect of massive implementation of activities as e- commerce, e- payments and others the e- technologies’ implementation is the progressive way of these subjects’ expansion. However, due to relatively short time period in which enterprise subjects have solved there is a set of vague aspects going together with this problem. The paper analyses the area of e- technologies and defines relations between basic concepts. Following this theoretical system a few hypothesis are constructed and used as a base platform for a determination of the logical model for implementation of e- technologies in enterprise environment.



2001 ◽  
Vol 56 (3) ◽  
pp. 366-382 ◽  
Author(s):  
Terry W. Swanson ◽  
Marc L. Caffee

AbstractThe 36Cl dating method is increasingly being used to determine the surface-exposure history of Quaternary landforms. Production rates for the 36Cl isotopic system, a critical component of the dating method, have now been refined using the well-constrained radiocarbon-based deglaciation history of Whidbey and Fidalgo Islands, Washington. The calculated total production rates due to calcium and potassium are 91±5 atoms 36Cl (g Ca)−1 yr−1 and are 228±18 atoms 36Cl (g K)−1 yr−1, respectively. The calculated ground-level secondary neutron production rate in air, Pf(0), inferred from thermal neutron absorption by 35Cl is 762±28 neutrons (g air)−1 yr−1 for samples with low water content (1–2 wt.%). Neutron absorption by serpentinized harzburgite samples of the same exposure age, having higher water content (8–12 wt.%), is ∼40% greater relative to that for dry samples. These data suggest that existing models do not adequately describe thermalization and capture of neutrons for hydrous rock samples. Calculated 36Cl ages of samples collected from the surfaces of a well-dated dacite flow (10,600–12,800 cal yr B.P.) and three disparate deglaciated localities are consistent with close limiting calibrated 14C ages, thereby supporting the validity of our 36Cl production rates integrated over the last ∼15,500 cal yr between latitudes of 46.5° and 51°N. Although our production rates are internally consistent and yield reasonable exposure ages for other localities, there nevertheless are significant differences between these production rates and those of other investigators.



Author(s):  
Gleb L. Kotkin ◽  
Valeriy G. Serbo

If the potential energy is independent of time, the energy of the system remains constant during the motion of a closed system. A system with one degree of freedom allows for the determination of the law of motion in quadrature. In this chapter, the authors consider motion of the particles in the one-dimensional fields. They discuss also how the law and the period of a particle moving in the potential field change due to adding to the given field a small correction.



1977 ◽  
pp. 451-458
Author(s):  
E. Nebauek ◽  
P. Süptitz ◽  
I. Willert
Keyword(s):  


2019 ◽  
Vol 61 ◽  
pp. 01027 ◽  
Author(s):  
Iryna Trunina ◽  
Iryna Kushal ◽  
Denys Zagirniak

The crisis conditions of the enterprise functioning restrain the possibilities for the innovation activity and lay down higher requirements to the determination of the tasks of the financial strategy of development. To enhance the adaptive possibilities the authors propose to use an imitation-class mathematical model, indicate the basic stages of its creation, determine the structure: a control system; a functional system consisting of functional financial and economic blocks, an information system including a database. We distinguished the basic indices for the analysis of the ability of the enterprise to take strategic decisions of both financial and economic components of the mechanism of their realization. The practical realization of the proposed imitation model of the financialeconomic mechanism of taking strategic decisions based on the calculation of the integral index provides the required information basis for the grounded strategic decision and further development of the enterprise.



2018 ◽  
Vol 231 ◽  
pp. 01012
Author(s):  
Joanna Kobus ◽  
Lech Kwiatkowski ◽  
Rafał Lutze

The work is aimed at determining the corrosivity of atmosphere in the vicinity of roads, taking into account the characteristics of local emission sources, including traffic intensity of vehicles along with climatic and exploitation factors. Determination of the corrosivity of atmosphere was carried out according to the procedures described in PN EN ISO standards. Samples for testing were made of low carbon steel DC05, zinc and hot dip galvanized steel. Samples were assembled at 19 sites in the close vicinity of roads and highways near the measurement points of vehicle traffic intensity. The mass loss of exposed samples was the basis for determination the atmosphere corrosivity at each of 19 test sites. Regarding steel, the corrosivity category of C4 was observed at 8/19 sites. Corrosion losses outside roads are 2-4 times lower and ranged within the categories of C2 and C3. Zinc corrosion losses classified to category C4 occurred at 2/19 stations. In the remaining ones they corresponded to category C3. In areas outside of roads, zinc corrosion losses are about 20-100% lower (C2). The first attempts to model the dependence of operating and environmental parameters on zinc and zinc coating corrosion losses indicate significant correlation between zinc and zinc coating corrosion losses as a function.



1965 ◽  
Vol 11 (6) ◽  
pp. 633-640 ◽  
Author(s):  
Donald B Nevius ◽  
Gerard F Lanchantin

Abstract Natural gas was substituted for propane gas in the oxygen-fuel mixture supplying the Technicon AutoAnalyzer flame photometer. This was accomplished by the use of a 1/3-hp rotary pump and attached manifold, which compressed the gas from the city line and supplied it at a constant pressure to the burner module of the system. A method for the automatic analysis of serum Li was devised by using K as an internal standard and comparing the output of the Li-sensitive photo-cell with that of an attenuated K-sensitive cell. In addition, a simple procedure was incorporated into the routine determination of serum Na and K: samples of insufficient volume were diluted in a solution of known electrolyte concentration, which permitted their quantitation without changing the tubing manifold or other operating components of the system.



Frequenz ◽  
2014 ◽  
Vol 68 (3-4) ◽  
Author(s):  
Tomislav Šuh ◽  
Predrag Jovanović ◽  
Aleksandar Lebl ◽  
Dragan Mitić ◽  
Žarko Markov


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