نتایج جستجو برای: t 1800
تعداد نتایج: 710498 فیلتر نتایج به سال:
Aerial emissions from livestock production continue to be an area of concern for both the potential health and environmental impacts. However, information on gaseous, especially greenhouse gas (GHG) emissions for swine breeding/gestation and farrowing production facilities is meager. A 4300-sow breeding, gestation, and farrowing facility in Iowa was selected for extensive field monitoring. A Mo...
We synthesized high-resolution precisely-dated stalagmite records and historical document records from north central China to reconstruct a decadal resolution precipitation record during the last 1800 years (190–1980 AD). The synthesized precipitation record shows coincident variations and significant positive correlations with the temperature reconstructions on centennialto multidecadal-scale,...
2^«aigi'.v;.\H.v.'iiHwiii;ii.'/.v;:.««iTMif.Vfiiif'.viL!iiii 11680 TAAAATAATTUCACAEAGGCTnAAATGAfiTBGATAAGAAAnTAAM 1800 ^ . 1 . 1 . 1 .—l . • i»TCT 192
Exclusive π(0) electroproduction at a beam energy of 5.75 GeV has been measured with the Jefferson Lab CLAS spectrometer. Differential cross sections were measured at more than 1800 kinematic values in Q(2), x(B), t, and ϕ(π), in the Q(2) range from 1.0 to 4.6 GeV(2), -t up to 2 GeV(2), and x(B) from 0.1 to 0.58. Structure functions σ(T)+ϵσ(L), σ(TT), and σ(LT) were extracted as functions of ...
Abstract New data on Dutch and British GDP/capita show that at no time prior to 1750, perhaps not before 1800, did the leading countries of northwestern Europe enjoy sustained strong growth in GDP/capita. Such income per head as occur was highly episodic, concentrated a few decades then followed by long periods stagnation head. Moreover, 1800 economies reach levels capita much different from pe...
The preferred orientations around the internucleotide P-0(3’)(0’) and P-O(5)(w) bonds of the phosphodiester which link the successive nucleotide residues are crucial in discerning the helical as well as nonhelical bend conformations of nucleic acids and polynucleotides. Experimental investigations other than the single-crystal x-ray diffraction methods are unable to provide directly information...
PCFs (Photonic Crystal Fibers) with ‘T’ – shaped core have been proposed in this paper. –shaped PCF structures analyzed using two different background materials: silica and lead silicate. A total of 3600 rotation at an interval 900 has introduced the design structures. A, B, C D 00, 900, 1800 2700 as wafer. Similarly E, F, G H similar silicate material. Numerical investigations shows ‘D’, ‘F’, ...
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