The transition between hillslopes and channels defines landscape characteristics such as drainage density, ridge spacing, hillslope length. Previous studies of the location this have demonstrated that soil advection diffusion work either individually or in concert to set limits channelization largely soil-mantled landscapes. However, no model explaining bedrock landscapes has been established. ...

IMAGINE THAT YOU ARE SKIING DOWN A SLOPE and your full attention is focused on the movements of your body and your full attention is focused on the movements of your body, the position of the skis, the air whistling past your face, and the snow-shrouded trees running by. There is no room in your awareness for conflicts or contradictions; you know that a distracting thought or emotion might get ...

Wave-number spectra of magnetic field fluctuations are directly determined in the terrestrial foreshock region (upstream of a quasiparallel collisionless shock wave) using four-point Cluster spacecraft measurements. The spectral curve is characterized by three ranges reminiscent of turbulence: energy injection, inertial, and dissipation range. The spectral index for the inertial range spectrum ...

Fire safety is considered as one of the major objectives in design, construction and specially tunnel operation. The hot and toxic smoke propagation is a fundamental reason of human losses during a fire inside the tunnels. Therefore, an exact analytical investigation on the probable fire scenarios and its destructive effects for passengers, vehicles and structure are the main part of the tunnel...

Previous research has indicated that groups can benefit from the combination of face-to-face and asynchronous computer-mediated communication for conducting work. This exploratory experiment compares the effectiveness of four di~erent modes of communication for groups working on the upstream phases of sofhare development: (I) face-to-face (2) synchronous computer conferencing (3) asynchronous c...

A direct approach for determining the asymptotic MHD Mach cone is formulated and solved. An implicit analytical solution enables the calculation of the asymptotic downstream slope of MHD Mach cones at any clock angle for arbitrary Ms , Ma , and θbv . The solution obtained includes all previously known symmetric cases. The elongation and shift of the asymptotic fast mode shock cross-section are ...

The characteristics of the sediment transported by rivers (e.g. sediment flux, grain size distribution – GSD) dictate whether rivers aggrade or erode their substrate. They also condition the architecture and properties of sedimentary successions in basins. In this study, we investigate the relationship between landscape steepness and the grain size of hillslope and fluvial sediments. The study ...

Two dimensional slope profile morphometric investigation in a part of the land failure prone Garhwal region of the Lesser Himalaya, Tehri district, U. P., India, indicates that the landslip morphology is closely related to the dominant movement processes active in this terrain. Technique developed for the morphometric analysis of landslips involves the use of five morphometric indices. Each ind...

Gulf Stream warm-core rings (WCRs) impinging onto the Mid-Atlantic Bight (MAB) shelf edge can induce substantial water exchange between and slope seas. Combining satellite imagery idealized ocean models, this study investigates long-neglected influence of submarine canyons on WCR impingement process. Satellite images show onshore intrusion concentrated near MAB shelf-break canyons, indicating c...