The authors examine feedbacks between the isentropic slope and the generation of eddy activity in the Northern Hemisphere winter. The results reveal that periods of enhanced lower tropospheric eddy heat fluxes (and thus wave generation) are preceded by anomalously steep isentropic surfaces in the free troposphere, and followed by anomalously poleward eddy momentum fluxes near the tropopause. Th...

Current models of solar system evolution posit that the asteroid populations in resonance with Jupiter are comprised of objects scattered inward from the outer solar system during a period of dynamical instability. In this paper, we present a new analysis of the absolute magnitude and optical color distribution of Hilda asteroids, which lie in 3:2 mean-motion resonance with Jupiter, with the go...

Abstract A catastrophic rock planar slide occurred in the parish of Palmeira de Faro, Esposende (N Portugal), on November 23, 2022, middle night, killing two people while they were asleep first floor a building close to affected cut slope. The collapsed slope presented maximum height about 23 m, and was excavated granitic mass strongly weathered, some areas by mechanical means and, locally, wit...

The stability of the slope under excavation in various engineering is a hot issue, and both disturbances other internal factors have contributed to instability slope. study focused on deformation characteristics mechanism exit Qingshuigou tunnel Jiasha Town, Gejiu City, Honghe Prefecture, Yunnan, China. Field survey monitoring are performed reveal slope, which associated with hydrogeologic cond...

Depinning of two-dimensional liquid ridges and three-dimensional drops on an inclined substrate is studied within the lubrication approximation. The structures are pinned to wetting heterogeneities arising from variations of the strength of the short-range contribution to the disjoining pressure. The case of a periodic array of hydrophobic stripes transverse to the slope is studied in detail us...

Random Early Detection (RED), an active queue management scheme, has been recommended by the Internet Engineering Task Force (IETF) for the next generation routers. RED suffers from a number of performance problems, such as low throughput, large delay/jitter, and induces instability in networks. Many of the previous attempts to improve the performance of RED have been based on optimizing the va...

The impact of shelf slope on the linear stability of buoyant coastal currents and on the nonlinear formation of coastal meanders and eddies is investigated. The authors consider a simplified two-layer stratification in cylindrical geometry where a buoyant surface current flows along the coast above a denser water, with a flat bottom or steep shelves. Simulations were performed using the Nucleus...

Using three measures, namely, the standard deviation of the ratio of the deficit to GDP and the slope and standard error of the estimate of regressing this ratio on time, Brewer (1985) concludes that the developing countries’ deficits, as a group, are not notably larger or more unstable than the industrial countries’ deficits. This comment demonstrates that by using a more appropriate measure o...