نتایج جستجو برای: stream lines
تعداد نتایج: 273963 فیلتر نتایج به سال:
1. The spatial distribution of stream-dwelling organisms is often considered to be limited primarily according to the hierarchical structure of the hydrologic network, and previous conceptual models of population genetic structure have reflected this generality. Headwater specialists, however, are confined to short upstream sections of the network, and therefore are unlikely to respond in the s...
For the past few decades, analog voiceband modems have been used extensively to carry digital information over the Public Switched Telephone Network (PSTN). Conventional voiceband modems treat the PSTN as an analog communication channel. However, today’s PSTN is mostly a digital network except for the basic telephone services provided via analog subscriber lines. The conventional model of analo...
Abstract In this paper, Qeera wastewater containing stream, found in Bakkee-Jamaa district of Nekemte town, was assessed for selected metals and physico-chemical properties. The metals were determined by flame atomic absorption spectrophotometry (FAAS). Additional water samples collected from Dangi spring water, which is found about 10 km far away from the town, and Chalalaqi waste water ...
We analyze characteristic curves of vector fields and report on locations where they have cusps in their spatial projection, i.e., isolated points on the curve with abruptly turning tangent direction. Cusps appear in places where a projection of the corresponding tangent curve vector field exhibits critical points. We show that such cusps are only possible for streak and path lines, whereas the...
Extended abstract 1- INTRODUCTION In the regions with the active tectonics, the geometry and evolution of the river systems are sensitive to the surface uplift rate. The simply-folded belt of Zagros has been developed during the late Cenozoic era, and is still active as it is affected by the tectonic activity of the Arabian-Iranian shortening processes pertaining to plate boundary, since ...
in this study, the effects of strength and direction of the magnetic field on lid-driven cavity flow in the whole range of magnetic field strength variations, which already used in practice up to present (0 to 10 tesla), are studied. the governing equations, including conservative equations of momentum, continuity and magnetic field equations were solved numerically. momentum and continuity equ...
A steady two-dimensional laminar free convection heat transfer from a cold horizontal isothermal cylinder located above an adiabatic floor is studied both experimentally and numerically. In the experimental measurements the effects of cylinder distance from horizontal floor to its diameter (L/D) on heat transfer coefficient is studied for Rayleigh numbers of 3×105 and 6×105. Computations are ma...
Abstract Introduction: The diffusion of pollutants Methyl Mercaptan, Hydrogen Sulfide, Dimethyl sulfide and Dimethyl disulfide from dryer machines of pulp industries will cause to smell annoyance and health effects on the employees and neighbors . This study aimed to determine the effectiveness of local ventilation system and packed bed scrubber implemented for controlling the emitted hydrogen...
As a supplement of the paper, we give further details and analysis of the globally consistent stream line segmentation algorithm. Moreover, a more detailed description of the intrinsic similarity measure for comparing the resulting segments is also provided. Notation. We make use of the following formal concepts: let v(x) denote steady differentiable vector fields with associated over two (d = ...
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