نتایج جستجو برای: geometric mean diameter and sphericity
تعداد نتایج: 16863704 فیلتر نتایج به سال:
We establish some new properties of spectral geometric mean. In particular, we prove a log majorization relation between (Bts/2A(1−t)sBts/2)1/s and the t-spectral mean A♮tB:=(A−1♯B)tA(A−1♯B)t two positive semidefinite matrices A B, where A♯B is mean, dominant one. The limit involving also studied. then extend all results in context symmetric spaces negative curvature.
the distribution of total plasma homocysteine concentrations in relation to the sex and age is described, in a population of shiraz, south west of iran and compared to those reported in other populations. two hundred and one healthy males and 201 healthy females aged >15 y were randomly selected. total plasma homocysteine concentrations were measured using high performance liquid chromatograp...
The objective of this study was to investigate the effect ultrasound pre-treatment (50% US and 100% US-soaking), temperature (80, 90 100 ᵒC) dryer type (hot-air convection vacuum) on some physical characteristics such as hectoliter weight, thousand kernel dimensions (thickness, length, width, equivalent diameter sphericity) corn during drying. Before drying, samples were pre-treated without (co...
بررسی اثرات کوتاه مدت کم خاکورزی بر پایداری ساختمان خاکهای شمال خوزستان تحت تأثیر رطوبت و بافت خاک
Extensive tillage leads to the degradation of soil structure and aggregate stability. The effects of three different tillage implements including (combination tillage, chisel packer and disk), three levels of soil water content including (0.5, 0.7 and 0.9 plastic limit), three working speeds including (6, 8 and 10 km/hr) and two soil textures including (loam and silty clay loam soils) were stud...
Due to unsuitable soil physical conditions, calcareous soils, and the existence of a huge amount of sulfur in the country, the study of sulfur effects on the soil structure and other soil properties is necessary. Therefore, the effects of different rates of sulfur including: 0, 750, 1500 and 3000 kg/ha, when accompanied by Halothiobacillus neapolitanus bacteria, on the soil properties in the co...
in reality, most structures involved in geotechnical engineering are three dimensional in nature, and although in many, plane strain or axisymmetric approximations are reasonable, there are some, for which 3-d treatment is required. the quantity of data, and the size of the various vectors and matrices involved in such analysis, increase dramatically. this has sever implications for computer r...
The choice of foaming agent and its mass fraction significantly affect the size number metal foam cells. powder metallurgy process was used to produce aluminium foams with addition various agents: titanium hydride (TiH2) calcium carbonate (CaCO3). TiH2 added in an amount 0.4 wt.%, while quantity CaCO3 varied between 3 5 wt.%. produced foams, approximately same degree porosity, were scanned usin...
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