Results 31 to 40 of about 2,025 (141)

Correction of Aero-Optical Effect with Blow–Suction Control for Hypersonic Vehicles

open access: yesApplied Sciences
High-speed turbulence induces significant aero-optical effects that severely disrupt the functionality of imaging systems of hypersonic vehicles. In this study, the aero-optical correction of various jet cooling modes is investigated using a Terminal ...
Yubo Li   +3 more
doaj   +1 more source

Transboundary fine dust pollution in China and Korea: How has international politics impeded environmental negotiations?

open access: yesAsia &the Pacific Policy Studies, Volume 11, Issue 1, January 2024.
Abstract Transboundary fine dust has been a leading cause of dispute between China and Korea since the mid‐2010s. This study observes that transboundary fine dust is not purely an environmental issue, but rather mixed with political and diplomatic challenges.
Muhui Zhang
wiley   +1 more source

A Study on the Social Perception of Risks From Electromagnetic Wave—Focusing on Big Data-Based Text Mining Analysis

open access: yesSAGE Open
This study aimed to analyze the social perceptions of risks and harm to the human body from electromagnetic waves, which have increased due to the era of the fourth Industrial Revolution and the development of information and communication technology ...
Dong-Hun Kim, Beob-Heon Kim
doaj   +1 more source

U.S.-South Korea relations [PDF]

open access: yes, 2013
This report contains two main parts: a section describing recent events and a longer background section on key elements of the U.S.-South Korea relationship.
Chanlett-Avery, Emma   +4 more
core   +1 more source

Surrogate multi-objective optimization of missile RCS performance in hypersonic rarefied flow of the near space

open access: yesAIP Advances
This study focuses on optimizing the lateral jet efficiency of THAAD-like (Terminal High Altitude Area Defense) missiles operating under hypersonic rarefied flow conditions.
Kaijun Zhou   +4 more
doaj   +1 more source

Implikasi Perjanjian Asean-korea Free Trade Area (Akfta) Terhadap Ekspor Minyak Dan Gas Brunei Darussalam Ke Korea Selatan Tahun 2007 – 2011 [PDF]

open access: yes, 2017
This research is an International relations research in economy politic studies which describes about the implications of ASEAN – KOREA FREE TRADE AREA (AKFTA) agreement on exports of oil and gas from Brunei Darussalam to South Korea in 2007 – 2011.
Ballan, J. (Jihan)   +1 more
core  

The current state, problems and future of Germany's air and missile defence. OSW Commentary No. 105, 2013-04-10 [PDF]

open access: yes, 2013
From German point of view, air and missile defence systems are of little relevance for the protection of Germany’s territory. However, they are seen as important for conducting ‘out of area’ operations, providing military assistance to allies, and for ...
Gotkowska, Justyna
core  

U.S.-China Strategic Dialogue, Phase VIII Report [PDF]

open access: yes, 2014
This report is the product of collaboration between the Naval Postgraduate School, Center on Contemporary Conflict and the Defense Threat Reduction AgencyThe eighth annual session of the U.S.-China Strategic Dialogue on strategic nuclear issues was held ...
Glosny, Michael   +2 more
core  

De la SDI a la BMD: la evolución del escudo antimisiles de EEUU [PDF]

open access: yes, 2007
En este ARI se repasa la gestación, evolución y situación actual de la defensa contra misiles en los EEUU, desde su iniciativa de defensa estratégica (Strategic Defense Initiative, SDI) a su defensa de misiles balísticos (Ballistic Missile Defense, BMD).
Colom Piella, Guillem
core  

The strategic chain linking Pakistan, India, China, and the United States [PDF]

open access: yes, 2017
The 15-month Brookings Institution project focused on the “strategic chain” linking Pakistan, India, China, and the United States—a series of relationships that are resulting in some of the most active nuclear weapons, missile, and missile defense ...
Einhorn, Robert, Sidhu, W.P.S.
core  

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