Progress and Prospects of Some Key Technologies for Space Nuclear Reactor

2021 ◽  
Author(s):  
Nailiang Zhuang ◽  
Chenhao Yang ◽  
Yiqi Zhao ◽  
Yongnian Song ◽  
Xiaobin Tang
Keyword(s):  
Soviet Union ◽  
Large Scale ◽  
Nuclear Reactor ◽  
Historical Review ◽  
Recent Decade ◽  
The United States ◽  
Space Missions ◽  
The European Union ◽  
Space Applications ◽  
Key Technologies

Abstract With the increasing demands of versatile and long-lasting requirements of deep space missions, space nuclear reactor (SNR) power system is becoming the most potential energy source compared to conventional solar-battery and chemical energy in the future large-scale and long-life space missions. Since the very first successful launch of SNR system (SNAP-10A) in 1965, the United States, the Soviet Union / Russia, the European Union, Japan, Brazil and China have proposed various technical routes and schemes for SNR technologies over the past few decades. This paper presents a historical review of several key technologies (i.e., space nuclear reactor system and thermoelectric conversion system), especially focus on technical progress for recent decade and discusses on-going development activities. The paper also presents a forecast of potential future space applications of these key technologies.

Utopias of One

2019 ◽  
Author(s):  
Joshua Kotin
Keyword(s):  
United States ◽  
Soviet Union ◽  
World War I ◽  
Large Scale ◽  
Jim Crow ◽  
Personal Autonomy ◽  
The United States ◽  
Soviet Period ◽  
Original Research ◽  
The Soviet Union

This book is a new account of utopian writing. It examines how eight writers—Henry David Thoreau, W. E. B. Du Bois, Osip and Nadezhda Mandel'shtam, Anna Akhmatova, Wallace Stevens, Ezra Pound, and J. H. Prynne—construct utopias of one within and against modernity's two large-scale attempts to harmonize individual and collective interests: liberalism and communism. The book begins in the United States between the buildup to the Civil War and the end of Jim Crow; continues in the Soviet Union between Stalinism and the late Soviet period; and concludes in England and the United States between World War I and the end of the Cold War. In this way it captures how writers from disparate geopolitical contexts resist state and normative power to construct perfect worlds—for themselves alone. The book contributes to debates about literature and politics, presenting innovative arguments about aesthetic difficulty, personal autonomy, and complicity and dissent. It models a new approach to transnational and comparative scholarship, combining original research in English and Russian to illuminate more than a century and a half of literary and political history.

scholarly journals Competition of world powers in Central Asia

2021 ◽  
pp. 40-54
Author(s):  
Anna Sergeevna Iuniushkina ◽  
Tat'yana Ivanovna Pon'ka ◽  
Kristina Alekseevna Shapovalova
Keyword(s):  
Soviet Union ◽  
Central Asia ◽  
The United States ◽  
The European Union ◽  
Asian Countries ◽  
Security Issues ◽  
Emergency Situations ◽  
Central Asian ◽  
Central Asian Countries

This article explores the role of Central Asia in modern conditions, which significantly increases in geopolitical and geoeconomic aspect. Attention is given to the general security challenges of Central Asian countries, as this region requires the coordination of efforts of the leading global actors, as well as Central Asian countries themselves. Security issues associated with vulnerability of Central Asian countries to natural disasters and emergency situations that may occur as a result of territorial disputes, ethnic violence, drug trafficking, and terrorism prevention, fight against extremism underline the need for multilateral cooperation aimed at solution of general problems. The novelty of this research lies in the fact that after the dissolution of the Soviet Union, which changed the world political map, the newly formed Central Asian countries gave acquired statehood on the international arena. Namely during this difficult period, the Central Asian countries were forced to choose their own development path. Russia and China, to certain extent, have confirmed their presence in the region by creating the economic and military integration institutions with participation of Central Asian countries. Therefore, the emphasis is placed on the analysis of interaction between China and Russia in the post-Soviet Central Asia, their role in ensuring regional stability and economic growth. The article also examines the importance of studying the role of the United States and the European Union in Central Asia.

The Politics of Veteran Benefits in the Twentieth Century

2020 ◽  
Author(s):  
Martin Crotty ◽  
Neil J. Diamant ◽  
Mark Edele
Keyword(s):  
Soviet Union ◽  
Large Scale ◽  
Public Support ◽  
Political Influence ◽  
The United States ◽  
Research Field ◽  
Treatment Regimes ◽  
The United Kingdom ◽  
The Soviet Union ◽  
Veteran Benefits

What happened to veterans of the nations involved in the world wars? How did they fare when they returned home and needed benefits? How were they recognized — or not — by their governments and fellow citizens? Where and under what circumstances did they obtain an elevated postwar status? This book examines veterans' struggles for entitlements and benefits in the United States, the United Kingdom, Japan, Taiwan, the Soviet Union, China, Germany, and Australia after both global conflicts. It illuminates how veterans' success or failure in winning benefits were affected by a range of factors that shaped their ability to exert political influence. Some veterans' groups fought politicians for improvements to their postwar lives; this lobbying, the book shows, could set the foundation for beneficial veteran treatment regimes or weaken the political forces proposing unfavorable policies. The book highlights cases of veterans who secured (and in some cases failed to secure) benefits and status after wars both won and lost; within both democratic and authoritarian polities; under liberal, conservative, and even Leninist governments; after wars fought by volunteers or conscripts, at home or abroad, and for legitimate or subsequently discredited causes. Veterans who succeeded did so, for the most part, by forcing their agendas through lobbying, protesting, and mobilizing public support. The book provides a large-scale map for a research field with a future: comparative veteran studies.

Conclusion

2019 ◽  
pp. 240-254
Author(s):  
Edward M. Geist
Keyword(s):  
Cold War ◽  
Soviet Union ◽  
Large Scale ◽  
The United States ◽  
Civil Defense ◽  
Policy Implications ◽  
Historical Evolution ◽  
Post Cold War ◽  
The Soviet Union ◽  
The Cold War

This conclusion describes some general findings about the historical evolution of civil defense in the two superpowers over the course of the Cold War. Neither U.S. nor Soviet officials regarded their civil defense efforts as successful, but the shortcomings of the programs appear to have resulted from domestic political obstacles rather than technical, strategic, and budgetary considerations. In the United States, Congressional opponents blocked large-scale funding for civil defense before its unpopularity with the general public became a crippling obstacle. In the Soviet Union, ideological strictures simultaneously impelled the development of civil defense yet undermined its plausibility. This chapter also makes some observations about post-Cold War developments in U.S. and Russian civil defense and their possible policy implications.

scholarly journals Decadal trends in global CO emissions as seen by MOPITT

2015 ◽  
Vol 15 (23) ◽  
pp. 13433-13451 ◽  
Author(s):  
Y. Yin ◽  
F. Chevallier ◽  
P. Ciais ◽  
G. Broquet ◽  
A. Fortems-Cheiney ◽  
...  
Keyword(s):  
Large Scale ◽  
Western Europe ◽  
Model Simulation ◽  
Recent Decade ◽  
The United States ◽  
Global Scale ◽  
Emission Inventories ◽  
Co Concentration ◽  
Co Concentrations ◽  
Atmospheric Inversion

Abstract. Negative trends of carbon monoxide (CO) concentrations are observed in the recent decade by both surface measurements and satellite retrievals over many regions of the globe, but they are not well explained by current emission inventories. Here, we analyse the observed CO concentration decline with an atmospheric inversion that simultaneously optimizes the two main CO sources (surface emissions and atmospheric hydrocarbon oxidations) and the main CO sink (atmospheric hydroxyl radical OH oxidation). Satellite CO column retrievals from Measurements of Pollution in the Troposphere (MOPITT), version 6, and surface observations of methane and methyl chloroform mole fractions are assimilated jointly for the period covering 2002–2011. Compared to the model simulation prescribed with prior emission inventories, trends in the optimized CO concentrations show better agreement with that of independent surface in situ measurements. At the global scale, the atmospheric inversion primarily interprets the CO concentration decline as a decrease in the CO emissions (−2.3 % yr−1), more than twice the negative trend estimated by the prior emission inventories (−1.0 % yr−1). The spatial distribution of the inferred decrease in CO emissions indicates contributions from western Europe (−4.0 % yr−1), the United States (−4.6 % yr−1) and East Asia (−1.2 % yr−1), where anthropogenic fuel combustion generally dominates the overall CO emissions, and also from Australia (−5.3 % yr−1), the Indo-China Peninsula (−5.6 % yr−1), Indonesia (−6.7 % y−1), and South America (−3 % yr−1), where CO emissions are mostly due to biomass burning. In contradiction with the bottom-up inventories that report an increase of 2 % yr−1 over China during the study period, a significant emission decrease of 1.1 % yr−1 is inferred by the inversion. A large decrease in CO emission factors due to technology improvements would outweigh the increase in carbon fuel combustions and may explain this decrease. Independent satellite formaldehyde (CH2O) column retrievals confirm the absence of large-scale trends in the atmospheric source of CO. However, it should be noted that the CH2O retrievals are not assimilated and OH concentrations are optimized at a very large scale in this study.

‘IT'S ALL WORK AND HAPPINESS ON THE FARMS’: AGRICULTURAL DEVELOPMENT BETWEEN THE BLOCS IN NKRUMAH'S GHANA

2019 ◽  
Vol 60 (01) ◽  
pp. 25-44
Author(s):  
KERI LAMBERT
Keyword(s):  
Soviet Union ◽  
Rural Areas ◽  
Large Scale ◽  
Agricultural Sector ◽  
Sudden Change ◽  
Development Program ◽  
The United States ◽  
Smallholder Farming ◽  
The Government ◽  
New Nation

AbstractThis study assesses the agricultural sector under the government of Kwame Nkrumah as a dynamic Cold War front. After Ghana's independence in 1957, Nkrumah asserted that the new nation would guard its sovereignty from foreign influence, while recognizing that it needed foreign cooperation and investment. His government embarked upon a development program with an emphasis on diversifying Ghana's agriculture to decrease her dependence on cocoa. Meanwhile, both the United States and the Soviet Union sought to establish footholds in Ghana through agricultural aid, trade, and investments. In the first years of independence, the Ghanaian state encouraged smallholder farming and American investment. Later, in a sudden change of policy, the government established large-scale state farms along the socialist model. This article brings to light the ways that Ghanaians in rural areas engaged with and interpreted the increasingly interventionist agriculture projects and policies of Nkrumah's government.

China's Involvement in the Vietnam War, 1964–69

1995 ◽  
Vol 142 ◽  
pp. 356-387 ◽  
Author(s):  
Chen Jian
Keyword(s):  
Soviet Union ◽  
Vietnam War ◽  
Large Scale ◽  
International Conflict ◽  
The United States ◽  
Military Operations ◽  
The Soviet Union ◽  
Decision Making Processes ◽  
The Vietnam War ◽  
Source Materials

The Vietnam War was an international conflict. Not only were the Americans engaged in large-scale military operations in a land far away from their own, but the two major Communist powers, China and the Soviet Union, were also deeply involved. In the case of China, scholars have long assumed that Beijing played an important role in supporting Hanoi's efforts to fight the United States. Due to the lack of access to Chinese source materials, however, there have been difficulties in illustrating and defining the motives, decision-making processes, magnitude and consequences of China's involvement with the Vietnam War.

scholarly journals The Role of Reunified Germany in Poland’s Accession to NATO and the European Union

Politeja ◽  
2021 ◽  
Vol 18 (6(75)) ◽  
pp. 51-74
Author(s):  
Józef Fiszer
Keyword(s):  
United States ◽  
European Union ◽  
Soviet Union ◽  
The United States ◽  
The European Union ◽  
The United Kingdom ◽  
The Soviet Union ◽  
Long Time ◽  
The Eu

The study is devoted to Poland’s accession to NATO and the European Union (EU) and describes Germany’s stance on Poland’s Euro-Atlantic aspirations after 1989, which, despite various assessments, was not explicit and enthusiastic. However, it evolved gradually and was determined by a difficult internal situation after the reunification of Germany and its new geopolitics and geoeconomics. For Germany that reunified on 3 October 1990, an issue of greater importance than Polish accession to NATO and the EU was the presence of Soviet troops on the territory of the former GDR and normalization of relations with neighbors, particularly with France, Poland, the Soviet Union, and the United States. Both France and the United Kingdom, as well as the Soviet Union, and to a lesser extent, the United States initially were afraid of a reunified Germany and opposed Polish membership in Euro-Atlantic structures. At the time, hopes and fears were rife about the future of Europe. A common question was being asked in Paris, London, Moscow, Washington, and Warsaw – would reunified Germany remain a European state, or would Europe become German? Should Germany stay in NATO or leave after the reunification? There were questions also about Moscow’s policy towards reunified Germany and its position on Poland’s accession to Euro-Atlantic structures. Unfortunately, for a long time, it was negative. Today, thirty years after the fall of the Berlin Wall and the reunification of Germany, we can see that the black scenarios that were outlined in 1989-1990 did not actually come true. Despite the fears, those events opened the way for Poland to “return to Europe” and to gain membership in Euro-Atlantic structures, i.e., NATO and the European Union (EU). The path was not at all simple and it was not easy for Poland to make it through. In the study the author analyses subjective and objective difficulties related to Poland's accession to NATO and the EU and describes the evolution and role of Germany in this process.

scholarly journals To the question of ensuring international economic security: logics and key stages

2020 ◽  
pp. 38-52 ◽  
Author(s):  
Andrei Andreevich Kovalev
Keyword(s):  
International Economic ◽  
Soviet Union ◽  
Global Economy ◽  
Large Scale ◽  
The United States ◽  
Economic Security ◽  
Sustainable Growth ◽  
Global System ◽  
Logical Aspect ◽  
History Of

The goal of this work is to examine the history of ensuring international economic security. This goal can be achieved through the following tasks: 1) determine and explore the stages of ensuring international economic security within historical-logical aspect; 2) characterize and signify the key events of these stages; 3) assess the effectiveness of the mechanism of international legal provision of economic security within the highlighted historical periods. History of ensuring international economic security allows understanding it as the state of global economy, which drives the significant and sustainable growth of economic indexes and demonstrates efficient satisfaction of the economic interests of all nations. In this article, the provision of international economic security was examined within the historical-logical aspect, determining three stages of this process: 1) period between two world wars, when for the first time humanity set forth a task to ensure economic security as the paramount existential factor; 2) during the 1940’s – 1980’s the struggle between the global system of Socialism and Capitalist world also took place as a competition for economic efficiency of the two socioeconomic formations; 3) the third period, arriving after the collapse of the Soviet Union and global system of Socialism, is characterized as creation of unipolar world that is dominated by the United States, which initiated the globalization processes. This led to collision of civilizations, threatening to morph into a large-scale civilizational conflict. At the current stage of civilizational collision, it is difficult to reach a consensus in majority of the key issues pertaining to international economic security.

scholarly journals Will Central and Eastern European Countries Dismantle the European Union?—Contrasting European Developments to Current Trends in the US

2019 ◽  
Vol 5 (2) ◽  
pp. p234
Author(s):  
Iván Major
Keyword(s):  
European Union ◽  
Soviet Union ◽  
Eastern Europe ◽  
Former Soviet Union ◽  
The United States ◽  
Economic Transformation ◽  
Historical Background ◽  
The European Union ◽  
East European ◽  
Eastern European Countries

This paper analyzes the historical background of the current developments in Central Eastern Europe, in other parts of Eastern Europe and in previously member countries of the former Soviet Union. The author concludes that the political and economic transformation of these countries to a solid democracy and well-functioning market economy have not been successful for most of them yet, and this may have serious consequences on the European Union, too.The paper contrasts these trends with what we can observe in the United States now. The author turns to the “hard facts” next, when he discusses the different factors of human and economic development and the issue of migration in the Central and East European post-socialist countries and in a selected group of advanced countries.

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