نتایج جستجو برای: residue decomposition

تعداد نتایج: 147684  

Journal: :Plant and Soil 2023

Abstract Purpose Plant microbial biostimulants, such as arbuscular mycorrhizal fungi (AMF), enhance nutrient concentration in fruits, including tomato. However, field studies on tomato AMF inoculation are scarce. species belonging to Gigasporaceae and Glomeraceae families known vary life-history strategies may determine differential effects plant benefits residue decomposition. Despite this, th...

Journal: :Physical review letters 2009
E C Simpson J A Tostevin D Bazin B A Brown A Gade

Sudden single-nucleon removal reactions from fast radioactive beams are now key to studies of the structure of rare isotopes. The sensitivity of the heavy residue's parallel momentum distribution to the orbital angular momentum of the removed nucleon is a crucial feature with a high spectroscopic value. Two-nucleon removal reactions provide experimental reach toward the rarest nuclear species. ...

Journal: :Magnetic resonance in medicine 1996
L Ostergaard R M Weisskoff D A Chesler C Gyldensted B R Rosen

The authors review the theoretical basis of determination of cerebral blood flow (CBF) using dynamic measurements of nondiffusible contrast agents, and demonstrate how parametric and nonparametric deconvolution techniques can be modified for the special requirements of CBF determination using dynamic MRI. Using Monte Carlo modeling, the use of simple, analytical residue models is shown to intro...

Alireza Safahani Farshad Ghooshchi Maryamosadat Alavian Petroodi

This study setout to investigate the effect of wheat residue, tillage, and nitrogen fertilizer management on some agronomic traits of soybean as a split split plot based on randomized complete block design with three replications. The main plots included wheat residue management: collecting and leaving residue and sub plot included tillage (without tillage and conventional tillage), and the sub...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد 1389

. هدف در این پروژه دست یابی به یک فضای ویژگی بهینه جهت تفکیک فعالیت های ذهنی می باشد. یکی از راهکارهایی که برای طراحی چنین فضای ویژگی مفید به نظر می رسد، استفاده از الگوریتم تجزیه به مدهای تجربی (emprical mode decomposition) است. این الگوریتم به دلیل تطابق خصوصیات غیرخطی و غیرایستان آن با ماهیت سیگنال های eeg و سوابق روشن آن در سیگنال های حیاتی ایده مناسبی برای تدوین فضای ویژگی مذکور به شمار می...

2014
Ye Ren P. N. Suganthan

Hybrid model is a popular forecasting model in renewable energy related forecasting applications. Wind speed forecasting, as a common application, requires fast and accurate forecasting models. This paper introduces an Empirical Mode Decomposition (EMD) followed by a k Nearest Neighbor (kNN) hybrid model for wind speed forecasting. Two configurations of EMD-kNN are discussed in details: an EMD-...

Journal: :Journal of magnetic resonance imaging : JMRI 2005
Leif Østergaard

The principles of cerebral perfusion imaging by the method of dynamic susceptibility contrast magnetic resonance imaging (DSC-MRI) (bolus tracking) are described. The MRI signals underlying DSC-MRI are discussed. Tracer kinetics procedures are defined to calculate images of cerebral blood volume (CBV), cerebral blood flow (CBF), and mean transit time (MTT). Two general categories of numerical p...

Journal: :J. Sci. Comput. 2011
Shuhai Zhang Shufen Jiang Chi-Wang Shu

The convergence to steady state solutions of the Euler equations for high order weighted essentially non-oscillatory (WENO) finite difference schemes with the Lax-Friedrichs flux splitting [Jiang G.-S. and Shu C.-W. (1996), J. Comput. Phys. 126, 202-228] is investigated. Numerical evidence in [Zhang S. and Shu C.-W. (2007), J. Sci. Comput. 31, 273-305] indicates that there exist slight post-sho...

2006
Mark A. Williams David D. Myrold Peter J. Bottomley

Microbial colonization of soil-incorporated, C-labeled, crimson clover and ryegrass straw residues was followed under western Oregon field conditions from late summer (September) to the following early summer (mid-June) by measuring the C content of phospholipid fatty acid (PLFA) extracted from residues recovered from soil. Residue type influenced the rate of appearance of specific PLFA during ...

2014
M. D. McDaniel A. S. Grandy L. K. Tiemann M. N. Weintraub

While many ecosystem processes depend on biodiversity, the relationships between agricultural plant diversity and soil carbon (C) and nitrogen (N) dynamics remains controversial. Our objective was to examine how temporal plant diversity (i.e. crop rotation) influences residue decomposition, a key ecosystem function that regulates nutrient cycling, greenhouse gas emissions, and soil organic matt...

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