scholarly journals The Development of a Space Climatology: 2. The Distribution of Power Input Into the Magnetosphere on a 3‐Hourly Timescale

Space Weather ◽  
2019 ◽  
Vol 17 (1) ◽  
pp. 157-179 ◽  
Author(s):  
Mike Lockwood ◽  
Sarah N. Bentley ◽  
Mathew J. Owens ◽  
Luke A. Barnard ◽  
Chris J. Scott ◽  
...  
Keyword(s):  
Power Input ◽  
Distribution Of Power

scholarly journals Forcing of the Atlantic Equatorial Deep Jets Derived from Observations

2016 ◽  
Vol 46 (12) ◽  
pp. 3549-3562 ◽  
Author(s):  
Martin Claus ◽  
Richard J. Greatbatch ◽  
Peter Brandt ◽  
John M. Toole
Keyword(s):  
Energy Flux ◽  
Zonal Flow ◽  
Power Input ◽  
Oscillation Period ◽  
Dominant Mode ◽  
Depth Range ◽  
Mean Power ◽  
Basin Mode ◽  
Vertically Propagating ◽  
Distribution Of Power

AbstractThe equatorial deep jets (EDJs) are a ubiquitous feature of the equatorial oceans; in the Atlantic Ocean, they are the dominant mode of interannual variability of the zonal flow at intermediate depth. On the basis of more than 10 years of moored observations of zonal velocity at 23°W, the vertically propagating EDJs are best described as superimposed oscillations of the 13th to the 23rd baroclinic modes with a dominant oscillation period for all modes of 1650 days. This period is close to the resonance period of the respective gravest equatorial basin mode for the dominant vertical modes 16 and 17. It is argued that since the equatorial basin mode is composed of linear equatorial waves, a linear reduced-gravity model can be employed for each baroclinic mode, driven by spatially homogeneous zonal forcing oscillating with the EDJ period. The fit of the model solutions to observations at 23°W yields a basinwide reconstruction of the EDJs and the associated vertical structure of their forcing. From the resulting vertical profile of mean power input and vertical energy flux on the equator, it follows that the EDJs are locally maintained over a considerable depth range, from 500 to 2500 m, with the maximum power input and vertical energy flux at 1300 m. The strong dissipation closely ties the apparent vertical propagation of energy to the vertical distribution of power input and, together with the EDJs’ prevailing downward phase propagation, requires the phase of the forcing of the EDJs to propagate downward.

Analysis of EDM Process: A Finite Element Approach

1991 ◽  
Author(s):  
P. Madhu ◽  
V. K. Jain ◽  
T. Sundararajan ◽  
K. P. Rajurkar
Keyword(s):  
Finite Element ◽  
Removal Rate ◽  
Transient Heat Conduction ◽  
Power Input ◽  
The Finite Element Method ◽  
Workpiece Surface ◽  
Electro Discharge Machining ◽  
Element Approach ◽  
Distribution Of Power ◽  
Continuous Power

Abstract A model has been proposed for predicting the material removal rate and depth of damaged layer during Electro Discharge Machining (EDM). The transient heat conduction equation for the workpiece which accounts for the heat absorption due to melting, has been solved by the finite element method (FEM). Gaussian heat distribution of power within a spark has been considered and unlike in earlier theoretical works, the periodical updating of the shape of the workpiece surface has been performed. Computations have been performed for a single spark in the form of a pulse and a multi-sparks situation with a continuous power input and zero off time. The estimated results match fairly well with the experimental results.

The Electric Distribution of Power

1883 ◽  
Vol 15 (383supp) ◽  
pp. 6109-6110
Author(s):  
Bradley A. Fiske
Keyword(s):  
Electric Distribution ◽  
Distribution Of Power

Upheaval in the distribution of power in the world economy: Problems and outlook of the world economy to 2050

2017 ◽  
pp. 114-127 ◽  
Author(s):  
V. Klinov
Keyword(s):  
Economic Policy ◽  
International Trade ◽  
World Economy ◽  
Emerging Market ◽  
Detailed Review ◽  
Depressed State ◽  
Industry Output ◽  
The World ◽  
Distribution Of Power ◽  
The Eu

Causes of upheaval in the distribution of power among large advanced and emerging market economies in the XXI century, especially in industry output and international trade, are a topic of the paper. Problems of employment, financialization and income distribution inequality as consequences of globalization are identified as the most important. Causes of the depressed state of the EU and the eurozone are presented in a detailed review. In this content, PwC forecast of changes in the world economy by 2050, to the author’s view, optimistically provides for wise and diligent economic policy.

Borders, Conflicts and Bargaining in Federations and Communities of Governments

2009 ◽  
pp. 83-99
Author(s):  
A. Libman
Keyword(s):  
Economic Policy ◽  
Public Authority ◽  
Modern World ◽  
Main Research ◽  
Research Areas ◽  
Nation States ◽  
Distribution Of Power

Economic policy in the modern world can be treated as an outcome of interaction of multiple territorial centers of public authority: nation-states, subnational and supranational jurisdictions. In the last decades economics has increased its attention to the factors which influence the distribution of power among jurisdictions. The paper surveys two main research areas in this literature: economics of conflicts and theory of endogenous decentralization. It discusses the basic models of both approaches and their modifications applied in the literature as well as factors of conflict formation and bargaining over devolution.

KEY ASPECTS OF TRANSFORMATION OF THE STATE AUTHORITIES IN THE WORLD AND TO THE MODERN SOVERUM UKRAINE: A JOINT AND PERSONALITY

2018 ◽  
Vol 1 (11) ◽  
pp. 164-174
Author(s):  
Оlena Fedorіvna Caracasidi
Keyword(s):  
Separation Of Powers ◽  
Human Life ◽  
State Power ◽  
The State ◽  
Public Power ◽  
The People ◽  
Large Numbers ◽  
The World ◽  
Distribution Of Power ◽  
Key Aspects

The article deals with the fundamental, inherent in most of the countries of the world transformation of state power, its formation, functioning and division between the main branches as a result of the decentralization of such power, its subsidiarity. Attention is drawn to the specifics of state power, its func- tional features in the conditions of sovereignty of the states, their interconnec- tion. It is emphasized that the nature of the state power is connected with the nature of the political system of the state, with the form of government and many other aspects of a fundamental nature.It is analyzed that in the middle of national states the questions of legitima- cy, sovereignty of transparency of state power, its formation are acutely raised. Concerning the practical functioning of state power, a deeper study now needs a problem of separation of powers and the distribution of power. The use of this principle, which ensures the real subsidiarity of the authorities, the formation of more effective, responsible democratic relations between state power and civil society, is the first priority of the transformation of state power in the conditions of modern transformations of countries and societies. It is substantiated that the research of these problems will open up much wider opportunities for the provi- sion of state power not as a center authority, but also as a leading political structure but as a power of the people and the community. In the context of global democratization processes, such processes are crucial for a more humanistic and civilized arrangement of human life. It is noted that local self-government, as a specific form of public power, is also characterized by an expressive feature of a special subject of power (territorial community) as a set of large numbers of people; joint communal property; tax system, etc.

A review of high-power magnetoplasmodynamic electric propulsion designs and studies of RSC Energia

2020 ◽  
pp. 112-133
Author(s):  
Victor V. SINYAVSKIY
Keyword(s):  
Service Life ◽  
Electric Power ◽  
High Power ◽  
Electric Propulsion ◽  
Nuclear Power ◽  
Materials Science ◽  
Low Voltage ◽  
Power Input ◽  
Design Bureau ◽  
Rocket Propulsion

At the initiative of S.P.Korolev, in 1959, Special Design Bureau No.1 (now RSC Energia) established the High-temperature Power Engineering and Electric Propulsion Center which was tasked with development of nuclear electric propulsion for heavy interplanetary vehicles. Selected as the source of electric power was a nuclear power unit based on a thermionic converter reactor, and selected as the engine was a stationary low-voltage magnetoplasmodynamic (MPD) high-power (0.5–1.0 MW) thruster which had thousands of hours of service life. The paper presents the results of extensive efforts in research, development, design, materials science experiments, and tests on the MPD-thruster, including the results of development and 500-hours life tests of an MPD-thruster with a 500-600 kW electric power input that used lithium propellant. The world’s first lithium 17 kW MPD-thruster was built and successfully tested in space. The paper points out that to this day nobody has surpassed the then achievements of RSC Energia neither in thruster output during long steady-state operation, nor in performance and service life. Key words: Martian expeditionary vehicle, nuclear electric rocket propulsion system, electric rocket thruster, magnetoplasmodynamic thruster, lithium, cathode, anode, barium, electric propulsion tests in space.

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