Results 31 to 40 of about 2,102 (139)

Capability of NOL ballistics ranges for obtaining sphere drag coefficient data [PDF]

open access: yes
Ballistic ranges for measuring drag coefficients of ...
Lyons, W. C., Jr.
core   +1 more source

X-15 Contributions to the X-30 [PDF]

open access: yes, 1991
Some of the less publicized flight test results from the X-15 program that might relate to sustained high-speed flight in the atmosphere are presented.
Hoey, Robert G.
core   +1 more source

Assessing sprinkler irrigation uniformity using a ballistic simulation model [PDF]

open access: yes, 2001
The definitive version is available at: http://ees.elsevier.com/agwatExperiments were performed in the Ebro Valley of Spain to provide the basis for the calibration and validation of a ballistic simulation model of sprinkler irrigation.
Playán Jubillar, Enrique   +8 more
core   +1 more source

Innovative transdermal drug delivery systems: Benefits, challenges, and emerging application

open access: yesBMEMat, EarlyView.
The graphical abstract illustrates the diverse nanostructures employed in transdermal drug delivery systems, highlighting their unique mechanisms to penetrate the intricate layers of skin. It provides a detailed representation of the skin's complex anatomy, emphasizing the challenges posed by its barrier properties.
Syed Waqas Ali Shah   +9 more
wiley   +1 more source

Tracking and Characterization of Moving Acoustic Sources Using an Infrasound Array at Volcán Santiaguito, Guatemala [PDF]

open access: yes, 2015
Active volcanic processes produce large amounts of acoustic energy within the infrasound band (0-20 Hz). Infrasound-sensitive microphones are often installed in addition to other forms of volcano monitoring equipment to increase the ability to remotely ...
Terbush, Brian R.
core   +1 more source

Rehabilitation guidelines after autograft anterior cruciate ligament reconstruction need more graft‐specific exercise recommendations—A scoping review

open access: yesKnee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose Autografts for anterior cruciate ligament reconstruction (ACLR) are primarily harvested from the quadriceps, patellar, and semitendinosus tendons. The purpose of this scoping review was to describe available recommendations for exercise‐based rehabilitation following primary ACLR with a quadriceps tendon (QT), semitendinosus tendon (ST)
Kristín Briem   +4 more
wiley   +1 more source

Research in volcanic geology, petrology and planetary science at MIT, 1969 to 1974 [PDF]

open access: yes
The behavior of volcanoes was studied by geologic mapping, petrologic investigations of lava and xenoliths, physical measurements, and theoretical modelling. Field observations were conducted in Alaska (Nunivak Island), Iceland, Hawaii (Mauna Kea), Italy
Mcgetchin, T. R.
core   +1 more source

The Effect of Voxel Volume and Voxel Shape on Cardiac Diffusion Tensor Imaging Metrics

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Cardiac diffusion tensor imaging (cDTI) is signal‐to‐noise ratio (SNR)‐limited due to diffusion signal attenuation, long echo times from gradient moment nulling, and moderate myocardial T2$$ {}_2 $$. Increasing voxel volume improves SNR but reduces spatial sensitivity and introduces physiological bias.
Ariel J. Hannum   +3 more
wiley   +1 more source

Assembly and analysis of fragmentation data for liquid propellant vessels [PDF]

open access: yes
Fragmentation data was assembled and analyzed for exploding liquid propellant vessels. These data were to be retrieved from reports of tests and accidents, including measurements or estimates of blast yield, etc.
Baker, W. E.   +3 more
core   +1 more source

Rapid emergency assessment of ash and gas hazard for future eruptions at Santorini Volcano, Greece [PDF]

open access: yes, 2015
Hazard assessments for long-dormant volcanoes, where information is rarely available, typically have to be made rapidly and in the face of considerable uncertainty and often poor information.
Barsotti, Sara   +7 more
core   +1 more source

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