Results 1 to 10 of about 9,494 (123)

Use of Kriging Technique to Study Roundabout Performance [PDF]

open access: yes, 2011
Road intersections are dangerous places because of the many conflicting points between motorized and nonmotorized vehicles. In the case of defined traffic volume, several research groups have proved that roundabouts reduced the number of injuries and ...
MAZZELLA, ALESSANDRO   +2 more
core   +1 more source

Intensification of technological processes in drilling and blasting operations during open-cut mining in Kyzylkum region [PDF]

open access: yes, 2018
Purpose. It is found that for long term standing, the pit bench profile is close to the boundary of the disturbed zone. Therefore, long stability of the bench can be estimated in respect to the size of the disturbed area and the boundary of residual ...
Karimov, Sh, Ravshanova, M, Zairov, Sh
core   +1 more source

Seasonality in the Surface Energy Balance of Tundra in the Lower Mackenzie River Basin [PDF]

open access: yes, 2003
This study details seasonal characteristics in the annual surface energy balance of upland and lowland tundra during the 1998–99 water year (Y2). It contrasts the results with the 1997–98 water year (Y1) and relates the findings to the climatic normals ...
Andrea   +6 more
core   +2 more sources

Evidence for Compact Dark Matter in Galactic Halos [PDF]

open access: yes, 1999
Clumped dark matter arises naturally within the framwork of generic cosmological dark matter models. Invoking the existence of dark matter clumps can also solve may unexplained mysteries in astrophysics and geology or geophysics, eg.
Abbas, A., Abbas, S., Mohanty, S.
core   +4 more sources

Cognitive Structures of Good and Poor Novice Problem Solvers in Physics [PDF]

open access: yes, 1986
The way knowledge is organized in memory is generally expected to relate to the degree of success in problem solving. In the present study, we investigated whether good novice problem solvers have their knowledge arranged around problem types to a ...
Ferguson-Hessler, Monica G.M.   +1 more
core   +3 more sources

Titan's past and future: 3D modeling of a pure nitrogen atmosphere and geological implications

open access: yes, 2014
Several clues indicate that Titan's atmosphere has been depleted in methane during some period of its history, possibly as recently as 0.5-1 billion years ago. It could also happen in the future.
Charnay, Benjamin   +4 more
core   +3 more sources

On the crescentic shape of barchan dune

open access: yes, 2004
Aeolian sand dunes originate from wind flow and sand bed interactions. According to wind properties and sand availability, they can adopt different shapes, ranging from huge motion-less star dunes to small and mobile barchan dunes.
Hersen, P.
core   +4 more sources

Abrupt climate changes of the last deglaciation detected in a Western Mediterranean forest record [PDF]

open access: yes, 2009
Abrupt changes in Western Mediterranean climate during the last deglaciation (20 to 6 cal ka BP) are detected in marine core MD95-2043 (Alboran Sea) through the investigation of high-resolution pollen data and pollen-based climate reconstructions by the ...
Dormoy, Isabelle   +3 more
core   +3 more sources

Spatial heterogeneity of air-sea energy fluxes over a coral reef-Heron Reef, Australia [PDF]

open access: yes, 2012
The thermal environment of a coral reef is moderated by complex interactions of air-sea heat and moisture fluxes, local to synoptic-scale weather and reef hydrodynamics.
Mackeller, Melissa C.   +2 more
core   +1 more source

Paleoseismic and Slip-Rate Observations along the Honey Lake Fault Zone, Northeastern California, USA [PDF]

open access: yes, 2008
The Honey Lake fault is a major strike-slip fault in northeastern California that accommodates northwest-directed right-lateral shear in the northern Walker Lane.
Briggs, R. W.   +3 more
core   +1 more source

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