نتایج جستجو برای: clod mean weight diameter mwd
تعداد نتایج: 987041 فیلتر نتایج به سال:
Abstract Laboratory experiments were carried out to study the effect of biochar addition and gypsum content on some hydrophysical properties soil quality index. Soil samples with (G2) 100, (G3) 150, (G4) 200, (G5) 250 (G6) 350 g kg -1 , prepared by mixing a surface sample for depth 0-10 cm (G1) 60 subsurface from 60-100 (G7) 443 at research station College Agriculture / Tikrit University. was i...
Organic amendments have been widely confirmed to support soil health and agricultural sustainability. However, the effects mechanisms of long-term organic combined with chemical fertilizers on carbon (SOC) sequestration macroaggregate formation are still unclear. Therefore, this study aimed explore interaction between agglomeration after 12 years fertilization. Seven treatments within a field e...
Determination of the suction compression index, Ch, is necessary for predicting expansive soil heave based on soil suction. The CLOD Test is a convenient laboratory procedure for determining Ch, however it is not widely used. Rather, engineers often rely upon empirical correlations to find Ch. A laboratory investigation was conducted to verify previously established empirical relationships. The...
We prove that for the mean curvature flow of closed embedded hypersurfaces, intrinsic diameter stays uniformly bounded as approaches first singular time, provided all singularities are neck or conical type. In particular, assuming Ilmanen’s multiplicity one conjecture and no cylinder conjecture, we conclude in two-dimensional case always bounded. also obtain sharp $$L^{n-1}$$ bound curvature. T...
OBJECTIVES Few studies have focused on pulmonary arterial hypertension (PAH) associated with connective tissue diseases (CTDs). The optimal treatment for CTD-PAH has yet to be established. DESIGN Meta-analysis of the data from evaluations of treatment for PAH generally (19 studies) and CTD-PAH specifically (nine studies) to compare the effects of pulmonary vasodilative PAH agents. MEDLINE, EM...
An experiment was conducted to describe the characteristics of Angora rabbit fiber using optical fiber diameter analyzer (OFDA). A total of 349 fleece samples were collected from 60 French Angora rabbits. Recorded measurements of OFDA were as follows: mean fiber diameter, CV of fiber diameter, comfort factor, spinning fineness, mean fiber curvature, SD of fiber curvature, mean opacity of fibers...
Saturated hydraulic conductivity (Ks) is one of the most important soil physical characteristics that plays a major role in the soil hydrological behaviour. It is mainly affected by the soil structure characteristics. Aggregate size distribution is a measure of soil structure formation that can affect Ks. In this study, variations of Ks were investigated in various aggregate size distributions ...
Physical, chemical and biological attributes of soil surface are significantly affected by tillage practices and crop rotation. The objective of this study was to determine the short-term (2006-2009) effects of conventional and conservational tillage practices on selected soil physical properties of a heavy clay soil under two wheat-corn and wheatlegume rotation in a semi-arid Mediterranean...
BACKGROUND Pulmonary cachexia is common in advanced chronic obstructive pulmonary disease (COPD), culminating in exercise intolerance and a poor prognosis. Ghrelin is a novel growth hormone (GH)-releasing peptide with GH-independent effects. The efficacy and safety of adding ghrelin to pulmonary rehabilitation (PR) in cachectic COPD patients were investigated. METHODOLOGY/PRINCIPAL FINDINGS I...
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