Biostimulant Substances for Sustainable Agriculture: Origin, Operating Mechanisms and Effects on Cucurbits, Leafy Greens, and Nightshade Vegetables Species. [PDF]
Biomolecules, 2021 Cristofano F, El-Nakhel C, Rouphael Y.
europepmc +1 more source
Operationally Efficient Propulsion System Study (OEPSS) data book. Volume 4: OEPSS design concepts [PDF]
This study was initiated to identify operations problems and cost drivers for current propulsion systems and to identify technology and design approaches to increase the operational efficiency and reduce operations costs for future propulsion systems. To
Farhangi, Shahram +2 more
core +1 more source
Identification of Non-Volatile Compounds Generated during Storage That Impact Flavor Stability of Ready-to-Drink Coffee. [PDF]
Molecules, 2022 Lin H, Tello E, Simons CT, Peterson DG.
europepmc +1 more source
Anti-Heroic Images in Contemporary American Art [PDF]
, 2014 This essay examines anti-heroic images in American art. These images, which appropriate and even subvert the heroic, are grouped around four political protest movements that emerged during the 1960s: the civil rights movement, feminism, the environmental
Levin, Gail
core +1 more source
Next Exit 0.5 Million Kilometers [PDF]
A Caltech/JPL collaboration explores the "Interplanetary Superhighway.
Smith, Douglas L.
core
Hypersonic Flight Mechanics [PDF]
The effects of aerodynamic forces on trajectories at orbital speeds are discussed in terms of atmospheric models. The assumptions for the model are spherical symmetry, nonrotating, and an exponential atmosphere.
Busemann, A., Culp, R. D., Vinh, N. X.
core +1 more source
Investigation of the Problems of Lunar and Planetary Exploration Annual Report, 1 Dec. 1964 - 30 Nov. 1965 [PDF]
Problems of lunar and planetary ...
Brown, H., Murray, B. C.
core +1 more source
From Value to Valuation: Pragmatist and Hermeneutic Orientations for Assessing Science on the International Space Station. [PDF]
Am Sociol, 2021 Castaño P.
europepmc +1 more source
Aeronautics and space report of the President, 1982 activities [PDF]
Achievements of the space program are summerized in the area of communication, Earth resources, environment, space sciences, transportation, aeronautics, and space energy.
core +1 more source
Historical review of missile aerodynamic developments [PDF]
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