نتایج جستجو برای: regrowth

تعداد نتایج: 3925  

Journal: :Proceedings of the New Zealand Grassland Association 2000

شریفی, پیمان,

In this research the effects of cold were evaluated on coleoptile growth of 18 rice genotypes in two separate experiments. The first experiment was carried out as factorial based on randomized complete block design with three replications. In this experiment, two factors were including genotypes at 18 levels and temperature at 5 levels (9, 13, 17, 21 and 25 C°). The seeds of genotypes don’t ger...

Journal: :Agriculture 2023

Intermediate wheatgrass (Thinopyrum intermedium; IWG) is a perennial grass under development as grain and forage crop. Although IWG known for its ability to take up nitrate improve water quality, seasonal nitrogen (N) demand uptake by not well known. We measured shoot, root, production, tissue N concentration, soil mineral at multiple plant growth stages in 1- 2-year-old stands fertilized with ...

Journal: :Journal of the National Cancer Institute 2012
Sergey V Kozin Dan G Duda Lance L Munn Rakesh K Jain

Local relapse of tumors after radiation therapy remains a challenge in oncology. To devise rational approaches for preventing this relapse, we have to improve our understanding of how new vessels form in previously irradiated tumors. We propose that tumor regrowth after local irradiation is dependent on blood vessel formation by local endothelial cells without the need for recruitment of endoth...

2001
Raviv Raich G. Tong Zhou

In this paper, a comparison is made between the spectral regrowth of quadrature phase shift keyed (QPSK) and offset QPSK (OQPSK) signals as they go through non-linear amplifications. Contrary to existing approaches that assume the power amplifier input is Gaussian, our analysis is carried out without the Gaussian assumption, by using higher-order statistics. We show that it is possible to asses...

1999
Kevin G. Gard Hector M. Gutierrez Michael B. Steer

A statistical technique is presented for the characterization of spectral regrowth at the output of a nonlinear amplifier driven by a digitally modulated carrier in a digital radio system. The technique yields an analytical expression for the autocorrelation function of the output signal as a function of the statistics of the quadrature input signal transformed by a behavioral model of the ampl...

Journal: :Optics express 2007
Efraim Rotem Jeffrey M Shainline Jimmy M Xu

Electroluminescence at 1.28mum is observed in a nanopatterned silicon test structure that has been subjected to carbon implantation followed by solid-phase epitaxial regrowth for recrystalization. The sub-bandgap luminescence comes from a di-carbon complex known as 'G center'. Enrichment of silicon with carbon atoms has been achieved in a procedure consisting of two implantations and solid-phas...

Journal: :European Archives of Oto-Rhino-Laryngology 2017

Journal: :International Journal of Trichology 2016

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