نتایج جستجو برای: erosion control

تعداد نتایج: 1356155  

Journal: :Comput. Graph. Forum 2016
Guillaume Cordonnier Jean Braun Marie-Paule Cani Bedrich Benes Eric Galin Adrien Peytavie Eric Guérin

At large scale, landscapes result from the combination of two major processes: tectonics which generate the main relief through crust uplift, and weather which accounts for erosion. This paper presents the first method in computer graphics that combines uplift and hydraulic erosion to generate visually plausible terrains. Given a user-painted uplift map, we generate a stream graph over the enti...

ژورنال: علوم آب و خاک 2018

Wind erosion is the most important geomorphic process and the main cause of the landscape change in arid and semi-arid areas. This paper focuses on the Dust Storm Index (DSI) with the aim of monitoring wind erosion in Central Iran using meteorology data. The trend of standardized DSI and its three factors which are sever dust storm, moderate dust storm and local dust events were studied using M...

2014
Ana Paula Hermont Patrícia A. D. Oliveira Carolina C. Martins Saul M. Paiva Isabela A. Pordeus Sheyla M. Auad

BACKGROUND Eating disorders are associated with the highest rates of morbidity and mortality of any mental disorders among adolescents. The failure to recognize their early signs can compromise a patient's recovery and long-term prognosis. Tooth erosion has been reported as an oral manifestation that might help in the early detection of eating disorders. OBJECTIVES The aim of this systematic ...

Journal: :تحقیقات آب و خاک ایران 0
حجت قربانی واقعی حسینعلی بهرامی محمدهادی غفاریان مقرب حسین شهاب فاختک طلیعی طبری

a recognition of appropriate soil erosion control methods along with the use of convenient alternatives in erosion control are necessary for a proper management of natural resources. run off control through polymers is one of the new methods employed in reducing soil erosion. this research was conducted to evaluate the effects of a polymer, called anionic polyacrylamide, on soil infiltarion rat...

1998

BACKGROUND: The bioengineering technique used in Germany for erosion control includes a relatively low-cost biodegradable breakwater with wetlands located shoreward. The technique has application for shoreline erosion control on many U.S. reservoirs with dense thickets of young, woody trees, e.g. willow, cottonwood, and alder, located near them since these materials are used in the breakwater. ...

2008
Kate Norvell Neil Hansen Dwayne Westfall Laj Ahuja

Water is the most production limiting factor for dryland cropping systems in semiarid Great Plains environments. Evaporation is responsible for the greatest amount of water loss and management practices such as notill have been adopted to reduce evaporative losses. Less is known about the magnitude of water loss due to runoff. An objective of this study is to estimate an expected range in rainf...

2001
Andrew Simon Stephen E. Darby

Herein, we undertake a geomorphological analysis in which spatial and temporal trends of bed and bank erosion along an 18-km length of Hotophia Creek, Mississippi, are estimated for the period between 1961 and 2050. The evaluation was undertaken for two scenarios of channel response to channelization during 1961–1963. One scenario represents the ‘actual’ response of the channel and includes the...

2016
K. L. Wells

A description of Kentucky's land base indicates that of nearly 15 million acres suitable for cropland usage, approximately three-fourths bas an erosion hazard potential of some degree, relating largely to steepness of slope (1). For this reason, there is a large potential acreage of alfalfa and other perennial forage crops relating to their sod forming growth habit which provides them an inhere...

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