Results 31 to 40 of about 483,474 (280)

On the structure and stability of magnetic tower jets [PDF]

open access: yes, 2012
Modern theoretical models of astrophysical jets combine accretion, rotation, and magnetic fields to launch and collimate supersonic flows from a central source. Near the source, magnetic field strengths must be large enough to collimate the jet requiring
A. Ciardi   +42 more
core   +3 more sources

Vehicle Bump Testing Parameters Influencing Modal Identification of Long-Span Segmental Prestressed Concrete Bridges

open access: yesSensors, 2022
In-service prestressed concrete box girder bridges have received increasing attention in recent years due to a large number of bridges reaching decades in service.
Wilson Hernandez   +2 more
doaj   +1 more source

Comparison of Yersinia enterocolitica DNA Methylation at Ambient and Host Temperatures

open access: yesEpigenomes, 2023
Pathogenic bacteria recognize environmental cues to vary gene expression for host adaptation. Moving from ambient to host temperature, Yersinia enterocolitica responds by immediately repressing flagella synthesis and inducing the virulence plasmid (pYV ...
Dustin J. Van Hofwegen   +2 more
doaj   +1 more source

Constraints from deuterium on the formation of icy bodies in the Jovian system and beyond

open access: yes, 2008
We consider the role of deuterium as a potential marker of location and ambient conditions during the formation of small bodies in our Solar system. We concentrate in particular on the formation of the regular icy satellites of Jupiter and the other ...
Alibert   +58 more
core   +2 more sources

Effect of Ambient Light Variations on Luminance Ratio of CRT Monitor and Image Contrast in Ultrasonography

open access: yesJapanese Journal of Radiological Technology, 2009
Variation in the luminance ratio of a cathode ray tube(CRT)monitor and the ultrasonographic images at different levels of ambient light(0-150 lux)was investigated to obtain optimum ambient light in the ultrasonography suite. The maximum and minimum luminances of test patterns and ultrasonographic images were measured after three technicians ...
Shiro, Hatanaka   +9 more
openaire   +3 more sources

Internal shocks in relativistic outflows: collisions of magnetized shells [PDF]

open access: yes, 2006
(Abridged): We study the collision of magnetized irregularities (shells) in relativistic outflows in order to explain the origin of the generic phenomenology observed in the non-thermal emission of both blazars and gamma-ray bursts.
Aloy   +22 more
core   +3 more sources

Using the Incomplete Self-Similarity Method for Estimation of the Conjugate Depth Ratio of Density Jumps on Smooth and Rough Beds [PDF]

open access: yesمهندسی منابع آب, 2016
Density current is produced because of a density contrast with the ambient fluid. This density difference can result from dissolved solids, suspended materials, temperature, etc.
N. Barahmand
doaj  

Site Response Characteristics of Simeulue Island, Indonesia as Inferred from H/V Spectral Ratio of Ambient Noise Records

open access: yesJournal of Mathematical and Fundamental Sciences, 2016
Simeulue Island is an outer island arc west of Sumatra Island. The island is located close to the interface of the subduction zone between the Indo-Australian and Eurasian plates.
Titi Anggono   +3 more
doaj   +1 more source

Characterization of fresh and aged organic aerosol emissions from meat charbroiling [PDF]

open access: yesAtmospheric Chemistry and Physics, 2017
Cooking emissions can be a significant source of fine particulate matter in urban areas. In this study the aerosol- and gas-phase emissions from meat charbroiling were characterized. Greek souvlakia with pork were cooked using a commercial charbroiler
C. Kaltsonoudis   +15 more
doaj   +1 more source

High ambient-contrast-ratio display using tandem reflective liquid crystal display and organic light-emitting device

open access: yesOptics Express, 2005
A high ambient-contrast-ratio (A-CR) and large aperture-ratio display is conceptually demonstrated and experimentally validated by stacking a normally black reflective liquid crystal display (NB-RLCD) and an organic light-emitting device (OLED). Such a tandem device can be switched between the NB-RLCD mode and the OLED mode under bright and dark ...
Lee, Jiun-Haw   +7 more
openaire   +3 more sources

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