scholarly journals On development of test equipment for strengh and leak tests of submersibles designed to probe extreme depths of World Ocean

2021 ◽  
Vol 3 (397) ◽  
pp. 56-64
Author(s):  
V. Baldychev ◽  
◽  
D. Linev ◽  
V. Osipenko ◽  
G. Tumashik ◽  
...  
Keyword(s):  
Test Object ◽  
World Ocean ◽  
Transverse Dimension ◽  
Research Centre ◽  
Pressure Tank ◽  
Deep Diving ◽  
External Pressures ◽  
The World ◽  
Weldable Steel ◽  
Object Of Study

Object and purpose of research. The object of study is an upgradation of the unique land-based pressure tank DK-600 of Krylov State Research Centre designed to test underwater technologies for strength and leak under external pressures from 90 to 100 MPа. The purpose is to support acceptance tests of pressure hulls and equipment for advanced manned autonomous submersibles of extreme diving depths to 11 500 m. In accordance with the world practices in development of deepwater submersibles it is required to achieve pressures of about 135–140 МPа. Materials and methods. С использованием современных численных методов Preliminary calculations of strength are performed using up-to-date numerical methods (FE analysis), the choice of structural material is validated as weldable steel forgings, strength category 750–800 МPа. Main results. The procedure and setup are suggested (Capsule DК-600) to provide the said tests by placing a special splittype intermediate Capsule capable to generate 135–140 МPа on the test object inside the pressure tank DК-600 with pressures of 85–90 МPа. The Capsule can accommodate a test object of up to 2400 mm (transverse dimension). Conclusion. Results of an exploratory design study are presented to upgrade the unique land-based pressure tank, which would put the KSRC hydrobaric tank at the world forefront in terms of proof pressures for testing the strength and reliability of extremely deep diving submersibles measuring within 2400 mm (transverse dimension).

China

2020 ◽  
Vol 36 (1) ◽  
pp. 165-175
Author(s):  
Nengye Liu
Keyword(s):  
World Ocean ◽  
Fishing Fleet ◽  
External Pressures ◽  
The World ◽  
Distant Water Fishing ◽  
Flag State

Abstract This article examines China’s legislation on distant water fishing as a flag State, which has significant impact on the conservation of marine living resources in the world ocean. After briefly discussing internal and external pressures that the Chinese authorities are facing, the article provides an overview of the latest series of regulations for China’s distant water fishing fleet. It pays particular attention to the adoption of and compliance with the 2020 Rules on the Management of Distant Water Fishing.

Kazakhstan’s Economic Growth in the Context of the World Economy

2006 ◽  
pp. 133-146 ◽  
Author(s):  
K. Arystanbekov
Keyword(s):  
Economic Growth ◽  
Economic Policy ◽  
World Economy ◽  
World Ocean ◽  
Direct Access ◽  
Crude Petroleum ◽  
Nation States ◽  
The World ◽  
The Relationship

Kazakhstan’s economic policy results in 1995-2005 are considered in the article. In particular, the analysis of the relationship between economic growth and some indicators of nation states - population, territory, direct access to the World Ocean, and extraction of crude petroleum - is presented. Basic problems in the sphere of economic policy in Kazakhstan are formulated.

ON EVALUATION OF THE ROLE OF THERMAL AND WIND FACTORS FOR A PHYSICAL MODEL OF THE WORLD OCEAN GENERAL CIRCULATION SYSTEM

2019 ◽  
Vol 47 (3) ◽  
pp. 80-91
Author(s):  
V. G. Neiman
Keyword(s):  
Physical Model ◽  
Ocean Circulation ◽  
General Circulation ◽  
World Ocean ◽  
Circulation System ◽  
The Public ◽  
The World ◽  
Almost All ◽  
Conceptual Foundations

The main content of the work consists of certain systematization and addition of longexisting, but eventually deformed and partly lost qualitative ideas about the role of thermal and wind factors that determine the physical mechanism of the World Ocean’s General Circulation System (OGCS). It is noted that the conceptual foundations of the theory of the OGCS in one form or another are contained in the works of many well-known hydrophysicists of the last century, but the aggregate, logically coherent description of the key factors determining the physical model of the OGCS in the public literature is not so easy to find. An attempt is made to clarify and concretize some general ideas about the two key blocks that form the basis of an adequate physical model of the system of oceanic water masses motion in a climatic scale. Attention is drawn to the fact that when analyzing the OGCS it is necessary to take into account not only immediate but also indirect effects of thermal and wind factors on the ocean surface. In conclusion, it is noted that, in the end, by the uneven flow of heat to the surface of the ocean can be explained the nature of both external and almost all internal factors, in one way or another contributing to the excitation of the general, or climatic, ocean circulation.

Revised Chronology of Neogene DSDP Holes from the World Ocean

1995 ◽  
Author(s):  
D. Lazarus ◽  
C. Spencer-Cervato ◽  
M. Pika-Biolzi ◽  
J.P. Beckmann ◽  
K. von Salis ◽  
...  
Keyword(s):  
World Ocean ◽  
The World

Comparative analysis and interpretation of grace and grace-fo data

2020 ◽  
Vol 4 ◽  
pp. 101-106
Author(s):  
Konstantin Simonov ◽  
◽  
Alexander Matsulev
Keyword(s):  
Comparative Analysis ◽  
World Ocean ◽  
Satellite System ◽  
Data Archive ◽  
Space Systems ◽  
Satellite Measurements ◽  
Digital Maps ◽  
The World ◽  
Grace Mission ◽  
Anomalous State

The study is devoted to the analysis of the features of the change in the Equivalent Water Height (EWH) parameter over the geoid based on satellite measurements of space systems. The study used the GRACE and GRACE-FO satellite data archive. The assessment was carried out on Earth as a whole, including land areas and the World Ocean. Interpretation of the anomalous state of the geoenvironment is performed using digital maps of the spatial distribution of the EWH parameter based on the histogram approach and correlation analysis. Also, a comparative analysis of the studied data from the GRACE mission and data from the new GRACE-FO satellite system launched into orbit in the summer of 2018 was carried out.

Sign in / Sign up

Export Citation Format

Share Document