scholarly journals The impact of ground repairs on the reliability of aircraft

2021 ◽  
Author(s):  
O.E. Lukyanov ◽  
◽  
G.I. Ryzhov
Keyword(s):  
Mathematical Statistics ◽  
Direct Dependence ◽  
The Impact

This article considers the direct dependence of increasing the reliability of an aircraft on timely repair on the ground. Using the methods of mathematical statistics, the main parameters characterizing the reliability of aviation equipment are identified.

scholarly journals Dynamic Model of Impact Energy Absorption by a Conveyor Belt in Interaction with the Support System

Energies ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 64
Author(s):  
Daniela Marasova ◽  
Miriam Andrejiova ◽  
Anna Grincova
Keyword(s):  
Dynamic Model ◽  
Energy Absorption ◽  
Support System ◽  
Impact Energy ◽  
Dynamic Load ◽  
Conveyor Belt ◽  
Mathematical Statistics ◽  
Conveyor Belts ◽  
Process Damage ◽  
The Impact

Measurements of the dynamic load of conveyor belts of identical strengths were used to evaluate and compare the data for belts with and without a support system. The goal was to identify the effects of the support system in terms of a relative amount of impact energy absorbed by a conveyor belt. A dynamic model was designed based on selected parameters of the impact process. Damage to conveyor belts, caused by the absorption of impact energy, was evaluated using the applied methods of mathematical statistics.

scholarly journals The Quantitative Assessment Of Market Risk In Small And Medium - Sized Enterprise In The Slovak Republic

2016 ◽  
Vol 6 (2) ◽  
pp. 214-221
Author(s):  
Mária Hudáková ◽  
Ján Dvorský
Keyword(s):  
Risk Analysis ◽  
Quantitative Assessment ◽  
Preventive Measures ◽  
Slovak Republic ◽  
Market Risk ◽  
Mathematical Statistics ◽  
Statistical Characteristics ◽  
Interval Estimates ◽  
Market Risks ◽  
The Impact

Small and medium-sized enterprises (SMEs) in Slovakia do not pay sufficient attention to market risks, they do not form the prerequisites, or preventive measures of the risks assessed, which would prevent the problem. The essence of the article is based on the collected and processed data from the survey to analyze, assess and evaluate the impact of the factor, which is the number of employees to evaluate the market risk identified by managers of SMEs in the Žilina region of Slovakia. The analysis of market risk is carried out through the analysis of the selected statistical characteristics using the point and interval estimates and methods of mathematical statistics. The results of the survey showed that the number of employees has an impact on the amount of the value of the market risk of SMEs in the Žilina region and therefore it is not possible to underestimate it.   Keywords: risk, analysis, assessment, evaluation, market, small and medium-sized enterprise.

scholarly journals Impact of the global COVID-19 pandemic on the use of local government funds

2021 ◽  
Vol 129 ◽  
pp. 01028
Author(s):  
Viktor Soltes ◽  
Jana Stofkova ◽  
Jakub Durica
Keyword(s):  
Local Government ◽  
Detailed Analysis ◽  
Value Added ◽  
Mathematical Statistics ◽  
Government Finance ◽  
Program Structure ◽  
Scientific Methods ◽  
Local Government Finance ◽  
Before And After ◽  
The Impact

Research background: Municipalities, as entities of local government, finance the performed activities on the basis of the budget, which has a program structure. However, due to the global COVID-19 pandemic, municipal incomes have declined. Municipalities therefore had to adjust their budgets and reduce expenditures, which could disrupt several processes in municipalities. Purpose of the article: The main aim of the paper is to analyse the budgets of selected local government entities and assess the impact of the COVID-19 pandemic on the use of funds by municipalities with an emphasis on the security area. Methods: In order to assess the impact of the COVID-19 pandemic on the use of funds by municipalities, a detailed analysis of the budgets and final accounts of selected municipalities will be carried out. The amount of income and expenditure in these municipalities before and after the outbreak of the COVID-19 pandemic will be examined. For this purpose, basic scientific methods and methods of mathematical statistics will be used. Findings & Value added: Based on the assessment of the COVID-19 pandemic impact on the budgets of municipalities, it will be possible to determine the activities that experienced the largest revenue shortfalls due to the fact that the municipalities could not finance them from their revenues. The contribution of the paper will be recommendations that should prevent such situations in the future and thus prevent the amount of damage that has been recorded as a result of the loss of income of municipalities.

scholarly journals The Impact of Lisbon Criteria on Business Development in Lithuania

Ekonomika ◽  
2005 ◽  
Vol 70 ◽  
Author(s):  
Rimantas Garuckas ◽  
Dalius Serafinas
Keyword(s):  
Business Environment ◽  
Business Development ◽  
Mathematical Statistics ◽  
Business Managers ◽  
Factors Influencing ◽  
Market Requirements ◽  
Business Entities ◽  
Internal Costs ◽  
The Impact ◽  
The Eu

The aim of the paper is to review the Lisbon criteria that are influencing business in Lithuania, and to outline the main perspectives of national businesses in the EU context. To this end, we have analyzed earlier works on the factors and parameters that influence business environment in the EU, compiled a list of most crucial factors influencing the business entities, interviewed the top management of 300 top Lithuanian companies in order to find out the peculiarities of the Lithuanian way to success in business. Managers’ opinions were compared to facts stated in internal documents (especially documents containing market requirements) as to quality and price; internal costs and efficiency of processes. The following methods of research were employed: metaanalysis, documentation review, triangulation, interviews, basic methods of mathematical statistics.

scholarly journals Analysis and Evaluation of Market and Financial Risks in Small and Medium-Sized Enterprises 

2018 ◽  
Vol 20 (2) ◽  
pp. 16-22
Author(s):  
Maria Hudakova ◽  
Jan Dvorsky ◽  
Katarina Buganova ◽  
Ludmila Kozubikova
Keyword(s):  
Interval Estimation ◽  
Mean Value ◽  
Mathematical Statistics ◽  
Statistical Characteristics ◽  
Financial Risks ◽  
Entire Interval ◽  
Interval Estimates ◽  
Analysis And Evaluation ◽  
The Mean ◽  
The Impact

The essence of the article is based on the collected and processed data from the survey to analyze, assess and evaluate the impact of the factor, which is the number of employees, on the market and financial risks, identified by managers of the SMEs in the Zilina region of Slovakia. The analysis of market and financial risks is carried out through the analysis of the selected statistical characteristics, using the point and interval estimates and methods of mathematical statistics. Interval estimation enables to determine not only the best estimate, but the entire interval with a certain probability of possible estimates of the mean value of the market and financial risks of a basic file, since the managers of an enterprise are more interested in intervals than in a point value. Results of the survey showed that the number of employees has an impact on the mean value of the market and financial risks of the SMEs in the Zilina region and therefore it is not possible to underestimate it.

INFLUENCE OF PARTICULAR AGROTECHNICAL METHODS ON PRODUCTIVITY AND QUALITY OF SPRING WHEAT SEEDS IN THE VOLGA AREA OF THE REPUBLIC OF TATARSTAN

2015 ◽  
Vol 10 (2) ◽  
pp. 97-100
Author(s):  
Ганиев ◽  
Azat Ganiev ◽  
Галиев ◽  
Fail Galiev ◽  
Шайхутдинов ◽  
...  
Keyword(s):  
Spring Wheat ◽  
Forest Soils ◽  
Gray Forest Soils ◽  
Direct Dependence ◽  
The Republic ◽  
The Impact ◽  
Wheat Seeds

Based on the results of three years of research on the impact of particular agricultural methods on productivity and quality of spring wheat seeds on the dark gray forest soils of the Volga area of the Republic of Tatarstan, we revealed a direct dependence of this factor on the density of stalks and nutrition background.

Formation of Lunar Craters and Bright Rays as a Result of Meteorite Impacts

1962 ◽  
Vol 14 ◽  
pp. 415-418
Author(s):  
K. P. Stanyukovich ◽  
V. A. Bronshten
Keyword(s):  
Explosive Charge ◽  
The Moon ◽  
Meteorite Impacts ◽  
The Earth ◽  
Lunar Craters ◽  
The Impact

The phenomena accompanying the impact of large meteorites on the surface of the Moon or of the Earth can be examined on the basis of the theory of explosive phenomena if we assume that, instead of an exploding meteorite moving inside the rock, we have an explosive charge (equivalent in energy), situated at a certain distance under the surface.

The Geosciences Applied to Lunar Exploration

1962 ◽  
Vol 14 ◽  
pp. 169-257 ◽  
Author(s):  
J. Green
Keyword(s):  
Lunar Surface ◽  
Probable Mechanism ◽  
Point Of View ◽  
Lunar Exploration ◽  
Geological Model ◽  
Apply Geophysics ◽  
Surface Features ◽  
The Impact

The term geo-sciences has been used here to include the disciplines geology, geophysics and geochemistry. However, in order to apply geophysics and geochemistry effectively one must begin with a geological model. Therefore, the science of geology should be used as the basis for lunar exploration. From an astronomical point of view, a lunar terrain heavily impacted with meteors appears the more reasonable; although from a geological standpoint, volcanism seems the more probable mechanism. A surface liberally marked with volcanic features has been advocated by such geologists as Bülow, Dana, Suess, von Wolff, Shaler, Spurr, and Kuno. In this paper, both the impact and volcanic hypotheses are considered in the application of the geo-sciences to manned lunar exploration. However, more emphasis is placed on the volcanic, or more correctly the defluidization, hypothesis to account for lunar surface features.

Asteroid and Comet Impact Speeds upon Mars: Significance for Panspermia and the Supply of Organics

1997 ◽  
Vol 161 ◽  
pp. 197-201 ◽  
Author(s):  
Duncan Steel
Keyword(s):  
Probability Distributions ◽  
Regions Of Interest ◽  
Significant Fraction ◽  
Organic Chemicals ◽  
Impact Speed ◽  
The Mean ◽  
The Impact

AbstractWhilst lithopanspermia depends upon massive impacts occurring at a speed above some limit, the intact delivery of organic chemicals or other volatiles to a planet requires the impact speed to be below some other limit such that a significant fraction of that material escapes destruction. Thus the two opposite ends of the impact speed distributions are the regions of interest in the bioastronomical context, whereas much modelling work on impacts delivers, or makes use of, only the mean speed. Here the probability distributions of impact speeds upon Mars are calculated for (i) the orbital distribution of known asteroids; and (ii) the expected distribution of near-parabolic cometary orbits. It is found that cometary impacts are far more likely to eject rocks from Mars (over 99 percent of the cometary impacts are at speeds above 20 km/sec, but at most 5 percent of the asteroidal impacts); paradoxically, the objects impacting at speeds low enough to make organic/volatile survival possible (the asteroids) are those which are depleted in such species.

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