نتایج جستجو برای: evapotranspiration torrent white method

تعداد نتایج: 1797154  

Journal: :چغندرقند 0
مهدی شهابی فر دکترای علوم و مهندسی آبیاری از دانشگاه تربیت مدرس ، عضو هیئت علمی و رئیس بخش تحقیقات آبیاری و فیزیک خاک مؤسسه تحقیقات خاک مهدی کوچک زاده عضو هیئت علمی گروه آبیاری دانشگاه تربیت مدرس محسن محمدزاده عضو هیئت علمی گروه آمار دانشگاه تربیت مدرس سید مجید میرلطیفی عضو هیئت علمی گروه آبیاری دانشگاه تربیت مدرس

for the purposed water resources management, irrigation scheduling, water usage optimization and gaining maximum yield two step fao method was applied to determine the water requirement (evapotranspiration) of sugar beet.  in this paper reference evapotranspiration were computed from recorded meteorological data at 38 weather stations using the hargreaves-samani method; and then through applyin...

2008
Sascha D. Meinrath Michael Calabrese

The FCC has proposed that the unassigned frequencies between broadcast TV channels – the TV band “white space” – should be opened on an unlicensed basis to certified devices that could offer a range of wireless services to the public. Access to the vacant TV channels in each market has been the subject of intense lobbying, yet far too many of the arguments against white space devices rely upon ...

2008
Zisheng Xing Lien Chow Fan-Rui Meng Herb W. Rees Lionel Stevens John Monteith

Three methods including the Penman-Monteith (PM), Priestley-Taylor (PT), and 1963 Penman equation (PE) for calculating daily reference evapotranspiration (ETo) were evaluated in the Maritime region of Canada with the data collected from 2004 to 2007. An automatically operated meteorological station located on the Potato Research Centre, Agriculture and Agri-Food Canada, Fredericton, New Brunswi...

Journal: :Journal of clinical pathology 2015
Umberto Malapelle Elena Vigliar Roberta Sgariglia Claudio Bellevicine Lorenzo Colarossi Domenico Vitale Pierlorenzo Pallante Giancarlo Troncone

AIMS To evaluate the accuracy, consumable cost and time around testing (TAT) of a next-generation sequencing (NGS) assay, the Ion Torrent AmpliSeq Colon and Lung Cancer Panel, as an alternative to Sanger sequencing to genotype KRAS, NRAS and BRAF in colorectal cancer patients. METHODS The Ion Torrent panel was first verified on cell lines and on control samples and then prospectively applied ...

2007
K. Schneider

This study evaluates the performance of four evapotranspiration methods (Priestley-Taylor, Penman-Monteith, Hargreaves and Makkink) of differing complexity in a semiarid environment in north China. The results are compared to observed water vapour fluxes derived from eddy flux measurements. The analysis became necessary after discharge simulations using an automatically calibrated version of th...

2013
Timothy T. Perkins Chin Yen Tay Fanny Thirriot Barry Marshall

The fully annotated genome sequence of the European strain, 26695 was first published in 1997 and, in 1999, it was directly compared to the USA isolate J99, promoting two standard laboratory isolates for Helicobacter pylori (H. pylori) research. With the genomic scaffolds available from these important genomes and the advent of benchtop high-throughput sequencing technology, a bacterial genome ...

2008
S. Opoku-Duah D.N.M. Donoghue T. P. Burt

This paper compares evapotranspiration estimates from two complementary satellite sensors - NASA's Moderate Resolution Imaging Spectroradiometer (MODIS) and ESA's ENVISAT Advanced Along-Track Scanning Radiometer (AATSR) over the savannah area of the Volta basin in West Africa. This was achieved through solving for evapotranspiration on the basis of the regional energy balance equation, which wa...

2000
J. Olejnik F. Eulenstein A. Kedziora

This paper compares the results of simulations and measurements of evapotranspiration from cultivated fields in Middle Europe. The modelling system THESEUS (i.e. toolbox for hydro-ecological simulation and evaluation utilities) from Wegehenkel (1997a, 2000) was used in this study. Evapotranspiration was also calculated from the latent heat flux density (LE) measured using a modified Bowen ratio...

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