scholarly journals Operational Feasibility Study of High Altitude Balloon Platform based on the Wind Environment in South Korea

2020 ◽  
Vol 70 (2) ◽  
pp. 153-158
Author(s):  
Jungpyo Kang ◽  
Kwanjung Yee ◽  
Gyujin Shim
Keyword(s):  
High Altitude ◽  
Feasibility Study ◽  
Trajectory Prediction ◽  
Prediction Program ◽  
Communication Problems ◽  
Air Vehicle ◽  
Seasonal Wind ◽  
The Republic ◽  
Rapid Deployment ◽  
Mother Ship

Naval helicopters flying at extremely low altitudes often face communication problems when the helicopter is located in the distance from the mother ship. Accordingly, new attention is being cast on the high altitude balloon (HAB) to solve this problem due to its cost-effectiveness and ability of rapid deployment to the battlefield. The balloon is one of a lighter-than-air vehicle that the blowing wind determines its speed, direction, and travel distance. Therefore, it is likely that seasonal changes in wind conditions will restrict the operation of the balloon. In this paper, the feasibility study of the balloon, which is regarded as a future communication relay platform, on the theater of operation of the Republic of Korea Navy the First Fleet was performed. The trends of the balloon trajectory for five years (2014 ~ 2018) with respect to seasonal wind variations were investigated employing the numerical trajectory prediction program. Simulated balloon trajectories of summer and winter showed considerable differences due to seasonal wind. Summer season was found that it has the most favorite flight environment for the balloon campaign. Upon reflecting on the simulation results, the HAB operating procedure, which capitalised on the Ulleungdo, was also suggested.

Creation and updating the I and II classes leveling network in the territory of the Republic of Crimea

2020 ◽  
Vol 957 (3) ◽  
pp. 2-7
Author(s):  
P.A. Khodakov ◽  
A.V. Basmanov
Keyword(s):  
High Altitude ◽  
Current State ◽  
The Republic

The authors discuss the current state of the Main high-altitude base (hereinafter – GVO) of the Republic of Crimea, taking into account the work at leveling I and II classes completed in 2016. This work was performed as part of the implementation of the activities of the Modernization and Optimization Programs of the Main High-Altitude Base of Russia. The results of implementing these Programs are considered, they are

scholarly journals THE MAIN PROBLEMS INTHE RECONSTRUCTION OF ROADS IN THE MOUNTAINOUS AREAS OF THE REPUBLIC OF DAGESTAN

2020 ◽  
Vol 4 (4(73)) ◽  
pp. 4-9
Author(s):  
R.K. Ahmedova ◽  
D.N. Selimhanov ◽  
A.R. Abdullaev
Keyword(s):  
Feasibility Study ◽  
Traffic Safety ◽  
Mountainous Areas ◽  
The Republic

The article deals with the main problems in the reconstruction of mountain roads. The main reasons for the need to perform works on reconstruction and bringing the existing network of roads in mountainous areas in accordance with the requirements of traffic safety are given. The characteristic of the main types of works which are provided at reconstruction of mountain roads for improvement of their transport and operational qualities is given. The problems of widening of the roadbed, roadway and roadsides affecting the modes and traffic safety during the reconstruction of mountain roads are considered. The sequence of work on the feasibility study of the width of the roadway and the roadbed in the reconstruction of mountain roads is proposed

scholarly journals Primary and Albedo Solar Energy Sources for High Altitude Persistent Air Vehicle Operation

Energies ◽  
2017 ◽  
Vol 10 (4) ◽  
pp. 573 ◽  
Author(s):  
Tim Smith ◽  
Michele Trancossi ◽  
Dean Vucinic ◽  
Chris Bingham ◽  
Paul Stewart
Keyword(s):  
Solar Energy ◽  
High Altitude ◽  
Energy Sources ◽  
Vehicle Operation ◽  
Air Vehicle

Very high altitude tethered balloon feasibility study

1995 ◽  
Author(s):  
Anthony Euler ◽  
Surjit Badesha ◽  
Larry Schroeder
Keyword(s):  
High Altitude ◽  
Feasibility Study ◽  
Tethered Balloon ◽  
Very High

scholarly journals EFFECTIVENESS ANALYSIS OF UCAV USED IN MODERN MILITARY CONFLICTS

Aviation ◽  
2020 ◽  
Vol 24 (2) ◽  
pp. 66-71
Author(s):  
Mirosław Adamski
Keyword(s):  
High Altitude ◽  
Armed Conflicts ◽  
Combat Experience ◽  
Electronic Warfare ◽  
Technical Parameters ◽  
Defense Strategy ◽  
Effectiveness Analysis ◽  
Air Vehicle ◽  
Military Conflicts ◽  
Long Endurance

Analysis of contemporary armed conflicts shows that UCAV (Unmanned Combat Air Vehicle) is finding an increasing range of combat applications. The present study deals with constructional characteristics, tactical and technical parameters, equipment with reconnaissance sensors, electronic warfare equipment, weaponry, economic coefficient, combat experience, possessed additional benefits, systems and technologies, performance and application options in combat operations. Two UCAV (MALE − Medium Altitude Long Endurance) classes were analyzed based on Heron, Heron TP, MQ-1B Predator, MQ-1C Gray Eagle, Wing Loong, CH-4B and newly introduced MQ-9 Reaper ER, MQ-9 Reaper, P.1HH HammerHead, Mantis and (HALE − High Altitude Long Endurance) Global Yabhon, Yabhon-United 40 to determine their optimal effectiveness in combat operations. The article presents a general methodology for assessing the tactical effectiveness of selected UAV classes that are or can be used in modern armed conflicts. It can be useful for potential interested parties when making decisions regarding the purchase or application of an appropriate UAV depending on the capabilities and conditions of the defense strategy of a given country.

scholarly journals Transparency of the decision-making process during the Coronavirus pandemic

2021 ◽  
pp. 81-97
Author(s):  
Irina Ciacir ◽  
◽  
Ecaterina Subina ◽  
Keyword(s):  
Decision Making ◽  
Public Administration ◽  
Decision Making Process ◽  
The European Union ◽  
The Public ◽  
Republic Of Moldova ◽  
Communication Problems ◽  
Short Period ◽  
The Republic

2020 is a year of global change. The spread of the COVID-19 virus was an impetus for transformation. The entire globe confronts impediments hard-to-anticipate, but who endangers people’s life. This article refers to the transparency of the decision-making process in the pandemic period. Also, it is explained the communication problems that can appear in complicated situations between the public administration and the citizen. Both the authorities of the European Union, in general, and of the Republic of Moldova, in particular, encounter social problems, which must be resolved in a very short period. Many decisions must be made promptly and unforeseen. It is important that this process does not affect the quality of public services provided and does not infringe on the rights of citizens. Thus, the decision-making process must be transparent and accessible to citizens

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