منابع مشابه
Ecologically-based Management Factors and criteria of River-Valleys in Tehran metropolis-Case Study: River-Valleys of Kan
Iran has seasonal rivers because of dry climate, low rainfall and different topography. These river- valleys have main role in forming, genesis, and sustainability of human settlements and provide different ecological services. The main services include beauty, store of green spaces, water supply, reduce and create temperature differences, local air flow and natural ventilation which are part o...
متن کاملThe Formation of Martian River Valleys by Impacts
We explore the role of large impacts in creating the Martian valley networks. Recent dating shows that some large impact basins are contemporaneous with the valley networks. The mass deposited (and volatiles released) by impacts is large, and comparable with the mass from the Tharsis volcanic construct. Steam atmospheres formed after large impacts can produce more than 600 m of rainfall, follow...
متن کاملOn Constrained-Instanton Valleys
We develop a systematic treatment for the quasi-zero modes, which play an important role in nonabelian gauge theories. It can be used to derive the analytic forms for the constrained instantons in the Yang-Mills-Higgs theory. This will automatically sum up contributions to all orders in ρ, the instanton size. We also give the analytic expressions for the instanton-antiinstanton pair, with an ar...
متن کاملOn Ridges and Valleys
Ridges and valleys are earth’s relief structures. They can have an imaging counterpart provided we model a digital image as a landscape by considering grey level values as height. These two dual entities have received comparatively little attention from the computer vision community with regard to others like edges or corners. In this paper we first propose a taxonomy or classification of the s...
متن کاملW-s Biihler
In the volatile and competitive banking market Asset and Liability Management (ALM) is becoming increasingly mission critical. Swiss Bank has built an intelligent system, called BALET (BALance sheet Estimation Tool), which supports this ALM process by automating the assessment of financial indicators. To provide alternative options, BALET simulates the possible effects of various economic trend...
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ژورنال
عنوان ژورنال: Geological Magazine
سال: 1879
ISSN: 0016-7568,1469-5081
DOI: 10.1017/s0016756800157541