Results 101 to 110 of about 139,538 (261)

Acute pericarditis following gunshot wound to the chest. [PDF]

open access: yesTrauma Surg Acute Care Open, 2022
Gutierrez A, Franklin B, Matsushima K.
europepmc   +1 more source

Expendable launch vehicle propulsion [PDF]

open access: yes
The current status is reviewed of the U.S. Expendable Launch Vehicle (ELV) fleet, the international competition, and the propulsion technology of both domestic and foreign ELVs.
Fuller, Paul N.
core   +1 more source

The Fallacy of Nuclear Primacy [PDF]

open access: yes, 2006
"The United States is easily deterred by any nuclear armed state, even by the most primitive and diminutive of nuclear arsenals." Bruce G. Blair is the President of the World Security Institute.
Bruce G. Blair, Chen Yali
core  

Paving the Way: The Influence of Early Research and Development Programs on Apollo, Saturn, and Legacy System Development [PDF]

open access: yes
As we celebrate the 50th anniversary of the first successful human landings on the surface of the Moon in 1969, it is insightful to review the many historic accomplishments that contributed to this astounding human achievement.
Cockrell, Charles E., Jr.   +1 more
core   +1 more source

Genesis of the 1000-Foot Arecibo Dish [PDF]

open access: yes, 2009
The giant radar/radio astronomy dish near Arecibo, Puerto Rico, was conceived by William E. Gordon in early 1958 as a back-scattering radar system to measure the density and temperature of the Earth’s ionosphere up to a few thousand kilometers.
Cohen, Marshall H.
core  

Historical review of missile aerodynamic developments [PDF]

open access: yes
The development of missiles from early history up to about 1970 is discussed. Early unpowered missiles beyond the rock include the spear, the bow and arrow, the gun and bullet, and the cannon and projectile.
Spearman, M. Leroy
core   +1 more source

The 2022 Russia invasion on Ukraine: The biofuel energy security challenge on Ukraine and some related countries. [PDF]

open access: yesHeliyon, 2023
Esonye C   +6 more
europepmc   +1 more source

Nuclear-armed submarines in Indo-Pacific Asia: stabiliser or menace? [PDF]

open access: yes
This report examines the implications of sea-based nuclear weapons for strategic stability in the Indo-Pacific. This paper is part of a wider research and outreach project on nuclear stability in a changing Indo-Pacific Asia, supported by a grant from ...
Brendan Thomas-Noone, Rory Medcalf
core  

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