CAUCASUS DOLMENS PHOTOGRAMMETRY EFFICIENT EXPERIENCE IN RESOURCE-LIMITED SETTINGS

2019 ◽  
pp. 48-67
Author(s):  
V.S. Stepchenkov ◽  
S.V. Valganov
Keyword(s):  
Data Processing ◽  
High Precision ◽  
Field Data ◽  
Field Experience ◽  
Three Dimensional ◽  
High Quality ◽  
Resource Limited Settings ◽  
Simple Method ◽  
The Caucasus ◽  
Resource Limited

The article presents a field experience in photogrammetric imagery and the Caucasus dolmen culture objects processing. This work objective is developing creative high quality three dimensional simple method in resource-limited settings. This approach analyzes insufficiently explored and hard-to-reach dolmen groups with interesting technical and cult elements. The objects are located in the Tuapse region: on the Mezetsu and Bzeuls ridges and on the upper of the Psynako river. As a result, we received eight high-precision models. There are seven standalone objects models and the three dolmens in these. Also, this article the collecting features and field data processing indicates. We believe our experience might be useful not in archaeology only but in other disciplines with similar objects fixing difficulties.

Three‐dimensional seismic exploration—A cost‐effective approach

Geophysics ◽  
1989 ◽  
Vol 54 (7) ◽  
pp. 815-823
Author(s):  
F. M. Peterson ◽  
W. C. Reynish
Keyword(s):  
Data Processing ◽  
Field Data ◽  
Three Dimensional ◽  
Cost Effective ◽  
Seismic Exploration ◽  
Effective Solution ◽  
Total Cost ◽  
Oil Companies ◽  
Cost Effective Approach ◽  
Data Field

Three‐dimensional (3-D) seismic prospecting is generally perceived as a very expensive tool that is not suitable for use by other than major oil companies or for the solution of conventional exploration geophysics problems. We illustrate how 3-D techniques were used to provide a very cost‐effective solution to a specific exploration project. A basic geologic and historical seismic outline establishes the economic and environmental framework for the survey. Drilling results and comparisons with conventional data illustrate the effectiveness of the 3-D approach. This survey was carried out during February of 1982 in the Black Creek basin of northwestern Alberta. Prolific and abundant Devonian Keg River pinnacle reefs with reserves in the 0.2 to 100 million barrel recoverable categories provide the exploration target. A prospective area of approximately [Formula: see text] was covered with a 165 ft subsurface grid of 1200 percent CDP data. Field data were acquired with a conventional 96-trace dynamite crew using a rolling, crossed‐array technique. Data processing was carried out with a flexible, conventional seismic processing package, including wavelet deconvolution, surface‐consistent statics, 3-D migration, and geologic slice displays. Total cost of the survey was $50,000 Canadian per sq mi. This paper demonstrates the interpretive power of 3-D surveys.

An experience of elaboration and implementation of systems of slag-forming mixtures mechanized feeding into CCM moulds

2020 ◽  
Vol 76 (10) ◽  
pp. 994-1003
Author(s):  
S. P. Eron’ko ◽  
M. Yu. Tkachev ◽  
E. V. Oshovskaya ◽  
B. I. Starodubtsev ◽  
S. V. Mechik
Keyword(s):  
Economic Effect ◽  
Three Dimensional ◽  
Movable Part ◽  
High Quality ◽  
Working Zone ◽  
Fine Material ◽  
Mixing Chamber ◽  
Field Samples ◽  
Technical Solutions ◽  
Feeding Systems

Effective application of slag-forming mixtures (SFM), being fed into continuous castingg machine (CCM) moulds, depends on their even distribution on the melt surface. Manual feeding of the SFM which is widely usedd does not provide this condition, resulting in the necessity to actualize the work to elaborate systems of SFM mechanized feedingg into moulds of various types CCM. A concept of the designing of a system of SFM feeding into CCM moulds presented with the ratte strictly correspondent to the casting speed and providing formation of an even layer of fine material of given thickness on the whoole surface of liquid steel. The proposed methods of designing of the SFM mechanized feeding systems based on three-dimensional computer simulation with the subsequent verification of the correctness of the adopted technical solutions on field samples. Informattion is presented on the design features of the adjusted facilities intended for continuous supply of finely granulated and powder mixtuures on metal mirror in moulds at the production of high-quality billets, blooms and slabs. Variants of mechanical and pneumo-mechaanical SFM supply elaborated. At the mechanical supply the fine material from the feeding hopper is moved at a adjusted distance bby a rigid horizontally located screw. At the pneumo-mechanical supply the metered doze of the granular mixture is delivered by a sshort vertical screw, the lower part of which is located in the mixing chamber attached from below to the hopper and equipped with ann ejector serving for pneumatic supply of the SFM in a stream of transporting gas. It was proposed to use flexible spiral screws in the ffuture facilities of mechanical SFM feeding. It will enable to eliminate the restrictions stipulated by the lack of free surface for locatiion of the facility in the working zone of the tundish, as well as to decrease significantly the mass of its movable part and to decreaase the necessary power of the carriage moving mechanism driver. The novelty of the proposed technical solutions is protected by thhree patents. The reduction of 10–15% in the consumption of slag-forming mixtures during the transition from manual to mechanizeed feeding confirmed. The resulting economic effect from the implementation of technical development enables to recoup the costs inncurred within 8–10 months.

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