نتایج جستجو برای: matric head

تعداد نتایج: 168598  

ژورنال: علوم آب و خاک 2013

The objective of this study was to evaluate the effects of crop residues management on soil physical and biological properties. The impacts of residue management on yield of forage corn and barley and soil micro-organisms population were also studied. The results showed that application of crop residues increased soil organic matter (22.2 %), saturated hydraulic conductivity (51.9 %), porosity ...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد یزد - دانشکده شیمی 1392

چکیده روغن اسانسی اندام های هوایی دو گونه گیاهی ایران از خانواده نعنائیان (nepeta persica، nepeta asterotricha) به دو روش تقطیر با آب و head space به دست آمد و ترکیبات موجود در آن ها به وسیله کروماتوگرافی گازی همراه با طیف سنجی جرمی جداسازی و شناسایی گردید. در روغن اسانسی حاصل از اندام هوایی n. persica، 18 ترکیب از 22/92% کل اسانس شناسایی شد و محصولات عمده (5/16%) 4a?, 7?, 7a? nepetalactone، ...

Journal: :Landslides 2021

A study of factors impacting landslide displacement rates was conducted on the Ripley Landslide within Thompson River valley in British Columbia, Canada for International Programme Landslides’ project #202. Seasonal and multiyear changes atmospheric cause cyclic fluctuation matric suction vadose zone through to situ water content. The ingress moisture is shown contribute seasonal loss stability...

2006
WEIPING YIN

1. Unitary Geometry on Exceptional Cartan Domains In 1935, E.Cartan classified all symmetric bounded domains. He prived that there exit only six types of irreducible bounded symmetric domains in C. They can be realized as follows: RI(m,n) = {Z ∈ Cmn|I − ZZ ′ > 0, Z − (m,n) matrix} RIIp = {Z ∈ Cp(p+1)/2|I − ZZ ′ > 0, Z − symmetric matric of degree p} RIIIq = {Z ∈ Cq(q−1)/2|I − ZZ ′ > 0, Z − skew...

Journal: :Gazi university journal of science part a:engineering and innovation 2022

A sudden slope failure occurred in Manisa possibly due to the effect of water infiltration because a slightly damaged sewage pipe. Considering that there was no other evidence such as rainfall or any loading conditions trigger failure, laboratory investigation on soil’s unsaturated hydro-mechanical properties initiated. Slopes are naturally soils, and they may lose their stability with increase...

Journal: :International Journal of Economics and Financial Issues 2022

When measuring poverty in South Africa, much of the theoretical and empirical work has focused on money-metric measures poverty. The conventional approach been use a line sufficient to meet primary human needs, often derived from consumption, expenditure or income levels. This narrow perspective tended divert attention development economists towards pursuit growth, which associated with necessa...

2008
D. L. Martin

Annual bluegrass (Poa annua L.) turf quality is reduced during periods of high temperature. To predict heat stress injury and develop improved prestress maintenance practices, an understanding of the seasonal variation in annual bluegrass heat tolerance and the influence of soil moisture on heat tolerance is crucial. Annual bluegrass growing in the field on a Drummer silty clay loam (fine silty...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید