نتایج جستجو برای: oklahoma during a storm time

تعداد نتایج: 14040944  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده زیست شناسی 1388

126 abstract: in this research we studied the effects of cyclic hydration and dehydration of cysts of artemia urmiana and artemia parthenogenetica on the hatching percentage, survival and growth. the experiment was carried out in 3 treatments (1-3 hydration/dehydration cycles) with 3 replicates for each treatment. later effects of cold preservation at -20°c during three time periods were ...

2009
Charlotte E. Wainwright Ming Xue Guifu Zhang Daniel T. Dawson

It is clear that in order to accurately model convective scale events, we require the most accurate microphysical schemes possible. However this need for detailed microphysical parameterization must be balanced with the computational expense that such detailed parameterizations require. A new way of calculating the drop-size distribution (DSD) parameters in the single moment (hereafter SM) and ...

2012
Arthur Rothstein

A farmer and his two sons during a dust storm in Cimarron County, Oklahoma, 1936, Photo: Arthur Rothstein The Dust Bowl, or the Dirty Thirties, was a period of severe dust storms causing major ecological and agricultural damage to American and Canadian prairie lands in the 1930s, particularly in 1934 and 1936. The phenomenon was caused by severe drought coupled with decades of extensive farming...

پایان نامه :0 1392

it is definitely necessary to understand the concept and behavior of causation of life insurance policies and its determinants for insurance managers, regulators, and customers. for insurance managers, the profitability and liquidity of insurers can be increasingly influenced by the number of causation through costs, adverse selection, and cash surrender values. therefore, causation is a materi...

During the rainfall, the intensity of precipitation varies. Changes in the amount of precipitation during an event of rainfall are effective in the resulting of flood and its intensity. Knowledge of how rainfall changes over time during rainfall is determined by temporal distribution pattern of rainfall. For this purpose, availability of short-term time scales rainfalls data are important that ...

2011
Muhammad Tauhidur Rahman

The goal of this study was to use LiDAR data to assess damage to trees from a December, 2007 ice storm affecting the city of Norman, Oklahoma (USA). Preand post-storm LiDAR data was collected for the city and it was processed and analyzed in a GIS platform. Results indicate that for single standing trees, LiDAR data can accurately assess and quantify damage with an accuracy of 90%. However, it ...

Journal: :Monthly weather review 2016
Marcus van Lier-Walqui Ann M Fridlind Andrew S Ackerman Scott Collis Jonathan Helmus Donald R MacGorman Kirk North Pavlos Kollias Derek J Posselt

The representation of deep convection in general circulation models is in part informed by cloud-resolving models (CRMs) that function at higher spatial and temporal resolution; however, recent studies have shown that CRMs often fail at capturing the details of deep convection updrafts. With the goal of providing constraint on CRM simulation of deep convection updrafts, ground-based remote-sens...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم انسانی 1392

abstract the present study deals with a comparison between reactive and pre-emptive focus-on-form in terms of application and efficiency. it was conducted in an intermediate english class in shahroud. 15 male learners participated in this research and their age ranged from 18 to 25. a course book, new interchange 3, and a complementary book were used. every session the learners gave lectures o...

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