نتایج جستجو برای: rill construction

تعداد نتایج: 208944  

Journal: :Earth Surface Processes and Landforms 2022

Soil erosion by water is a main form of land degradation worldwide. The problem has been addressed, among others, in the United Nations Sustainability Goals. However, for mitigation consequences and adequate management affected areas, reliable information on magnitude spatial patterns needed. Although such need often addressed modelling, precise monitoring necessary calibration validation model...

2000
B. Y. Liu M. A. Nearing P. J. Shi Z. W. Jia

cients. Normalizing to a unit plot of length 22.13 m, both the USLE and RUSLE use the equation Empirical soil erosion models continue to play an important role in soil conservation planning and environmental evaluations around L 5 (l/22.13) [2] the world. The effect of hillslope length on soil loss, often termed the where L is soil loss normalized to the 22.13-m-long slope length factor, is one...

Journal: :Earth surface dynamics 2021

Abstract. Surface flow on rilled hillslopes tends to produce sediment yields that scale nonlinearly with total hillslope length. The widespread observation lacks a single unifying theory for such nonlinear relationship. We explore the contribution of rill network geometry observed yield–length scaling Relying an idealized geometry, we formally develop probability functions geometric variables c...

Introduction Water erosion is one of the most important factors in land degradation in large parts of Iran destroying fertile soils and agricultural land. The impact of soil erosion and related sediments decreases significantly water quality and reservoir capacity. Especially in semiarid areas like in the Menderjan watershed in the west Isfahan province sheet and rill erosion contributes to th...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم 1376

this thesis deals with the construction of some function algebras whose corresponding semigroup compactification are universal with respect to some properies of their enveloping semigroups. the special properties are of beigan a left zero, a left simple, a group, an inflation of the right zero, and an inflation of the rectangular band.

Journal: :Journal of Object Technology 2002
Bertrand Meyer

The launching of the JOT provides a welcome opportunity to resume the Eiffel column that ran for many years in JOOP from 1998 (edited first by Rock Howard from whom I took over in 1998). It will run pretty much like its predecessor, with a mix of contributions by guest columnists and by me, and a mix of topics — from language matters to methodological issues of object-oriented software construc...

2015
Remi van Trijp

Sign languages (SL) require a fundamental rethinking of many basic assumptions about human language processing because instead of using linear speech, sign languages coarticulate facial expressions, shoulder and hand movements, eye gaze and usage of a three-dimensional space. SL researchers have therefore advocated SL-specific approaches that do not start from the biases of models that were ori...

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