نتایج جستجو برای: stand density index sdi
تعداد نتایج: 819852 فیلتر نتایج به سال:
The efficient management of nitrogen (N) fertilizer and irrigation is of utmost importance because they are two of the greatest expenses for corn production. This project was conducted to determine if yield and efficiency of fertilizer N in corn could be improved by applying N at later developmental stages through a subsurface drip irrigation (SDI) system. Experiments in 2014 and 2015 compared ...
Abstract Fine roots are the most active and functional component of root systems play a significant role in acquisition soil resources. Density is an important structural factor forest plantations but information on changes fine along density gradient limited. In this study, black locust ( Robinia pseudoacacia L.) Chinese pine Pinus tabuliformis Carr.) with four classes were analyzed for influe...
Objective The aim of this study was to explore the predictive value ratio procalcitonin (PCT) in serum Simpson’s dominance index (SDI) bronchoalveolar lavage fluid (BALF), short-term prognosis patients with severe bacterial pneumonia (SBP). Methods This is a retrospective review case materials 110 SBP who selected BALF metagenomic next-generation sequencing technique intensive care unit (ICU) A...
Gary A. Clark Research Agricultural Engineer Subsurface drip irrigation (SDI) systems deliver water to the root zone of crops using polyethylene drip tubing that is permanently buried below the soil surface. In properly designed and operated systems, little or no wetting of the soil surface occurs, nor is there visual evidence of the system performance. Because SDI systems apply water different...
The purpose of this work is to evaluate the applicability five drought indices (Surface Water Supply Index—SWSI, Reclamation Drought Index—RDI, Streamflow Index—SDI, Standardized Precipitation Index—SPI, and Evaporative Demand Index—EDDI) as tools for monitoring, in identifying duration, intensity, frequency hydrological droughts basins Banabuiú, Castanhão, Orós reservoirs, located state Ceará,...
Gary A. Clark Research Irrigation Engineer Quick Facts Subsurface drip irrigation (SDI) is a low-pressure irrigation system that uses polyethylene driplines that are permanently buried below the soil surface. Water drips to the surrounding soil through built-in emitters (specialized small openings). SDI places water directly into the root zone of the crop. It may improve yield due to high appli...
The aim of the present study was to investigate if disordered eating behaviors predicted the development of sleep disturbances. A total of 870 students participated at baseline, 592 one year later (T1) and 305 two years later (T2). The Eating Attitudes Test-40 was used to assess global disordered eating behaviors, dietary concerns (DC), bulimic behaviors (BB) and social pressure to eat (SPE). S...
This paper presents a simplified model of cracked beam by single-degree-of-freedom system. Equivalence between the and SDOF models means that they have same fundamental natural frequency similar response functions (FRFs). Similarity FRFs is checked using frequency-domain assurance criterion acknowledged herein as spectral similarity index (SSI). Finally, both its been examined versus crack loca...
Abstract Background Morphological changes of the heart associated with exercise are well studied. However, in myocardial mechanics athlete's less understood. The aim this study was to analyze deformation parameters athletes and controls, using feature tracking cardiac magnetic resonance (FT-CMR). Methods In a cohort 73 who had been submitted CMR at 1.5T 3 T (mean age 31±12 years, 69% males), we...
Method 42 heart failure patients (38 male, ejection fraction 26 ±8.9%, NYHA 2.8±0.4), 21 with ischemic cardiomyopathy (ICM) and 21 with dilated cardiomyopathy (DCM) underwent a CMR prior to CRT implantation. Patients were scanned using 1.5T MR-scanner (Achieva, Philips Healthcare, Best, Netherlands) with either 32 or 5-element cardiac coil. Cine steady state free precession (cine-SSFP) images o...
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