Feasibility study for an airborne geophysical survey of the Republic of Liberia

1968 ◽  
Author(s):  
Randolph Wilson Bromery
2020 ◽  
Vol 4 (4(73)) ◽  
pp. 4-9
Author(s):  
R.K. Ahmedova ◽  
D.N. Selimhanov ◽  
A.R. Abdullaev

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


1972 ◽  
Vol 1 (01) ◽  
pp. 47-54
Author(s):  
Donald B. Agnew

My observations are drawn from an economic-feasibility study for additional cattle slaughtering plants in the Republic of Panama, including aspects of technology as well as location and scale, supply and competition, transportation and market outlets. The study was made early in 1972 during a short-term assignment to the U.S. AID mission in Panama. In making the Panama study I was able to avoid many inadequacies I had encountered in similar studies of proposed new cattle slaughter plants for economic development at various locations in the United States and South America. There were contrasts in these situations and a broader challenge in the Panama study.


Geoheritage ◽  
2010 ◽  
Vol 2 (1-2) ◽  
pp. 25-37 ◽  
Author(s):  
M. S. Vdovets ◽  
V. V. Silantiev ◽  
V. V. Mozzherin

Author(s):  
Y. Masuda ◽  
M.J. Cruickshank ◽  
J.A. Abernathy ◽  
R. Winston

Author(s):  
Klim Gordeev ◽  
Evgeniy Podoplelov ◽  
Anatoliy Dement'ev

The paper compares the technical and economic indicators of various options for oil refining, assesses the effectiveness of the construction of refineries in the Republic of Sakha (Yakutia).


2019 ◽  
Vol 7 (2) ◽  
pp. 168-189

Orheiul Vechi is one of the most attractive cultural sites in the Republic of Moldova and one of the most frequently discussed. The density of sites and the continuity of living in this space has made Orheiul Vechi attractive for the multidisciplinary research since 1946. In the context of preparing the dossier for the inscription of the historic-cultural and natural landscape reserve “Orheiul Vechi” into the World Heritage List, a series of studies have been carried out in the last two decades. Some of these scientific approaches include non-invasive surveys in various areas of the reservation. Thus, in this article, all the results of magnetometric surveys carried out by a Moldovan-Romanian-German team in 2009-2014, have been presented for the first time. The surveys confirmed a number of archaeological situations already known and facilitated new discoveries that should be developed in the coming years.


2020 ◽  
Vol 70 (2) ◽  
pp. 153-158
Author(s):  
Jungpyo Kang ◽  
Kwanjung Yee ◽  
Gyujin Shim

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.


1972 ◽  
Vol 1 ◽  
pp. 27-38
Author(s):  
J. Hers

In South Africa the modern outlook towards time may be said to have started in 1948. Both the two major observatories, The Royal Observatory in Cape Town and the Union Observatory (now known as the Republic Observatory) in Johannesburg had, of course, been involved in the astronomical determination of time almost from their inception, and the Johannesburg Observatory has been responsible for the official time of South Africa since 1908. However the pendulum clocks then in use could not be relied on to provide an accuracy better than about 1/10 second, which was of the same order as that of the astronomical observations. It is doubtful if much use was made of even this limited accuracy outside the two observatories, and although there may – occasionally have been a demand for more accurate time, it was certainly not voiced.


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