نتایج جستجو برای: X- ray analyses

تعداد نتایج: 1028286  

Journal: :iranian journal of earth science 0
j. rueda –gaxiola geology, unidad de ciencias de la tierra-esia.ipn, calzada ticomán # 600. del. gustavo a. madero. col. san josé ticomán, méxico, d.f. 07330 mexico

red beds, conglomerates and salt were considered azoic and problematic rocks, but paleopalynology and inorganic geochemistry proved to be useful for placing them in time and space. in the early last century, in mexican ne region, only three mesozoic red bed units were differentiated, dated as late triassic to late jurassic. it was important tratigraphically to place them properly as they were c...

Journal: :journal of nanostructures 2013
m. hosseyni sadr a. morsali sh. hojaghani

a new nano-sized cobalt(ii) coordination polymer, (col1).0.5dmf.1.5ch3oh(1); [h2l1 = 5-(4-carboxy phenyl azo) salicyilic acid] has been synthesized by a sonochemical method. the thermal stability of compound 1 was studied by thermo- gravimetric and differential thermal analyses. nano-structure of this coordination polymer was characterized by elemental analyses, ir spectroscopy,  powder x-ray d...

2017

A team of researchers with members from several countries in Europe has used a type of X-ray diffraction to reveal defects in the way a superconductor develops. In their paper published in the journal Nature, the team describes the technique they used to study one type of superconductor and what they saw. Erica Carlson with Perdue University offers a News & Views piece on the work done by the t...

Journal: :Journal of the Mineralogical Society of Japan 1985

Journal: :Monthly Notices of the Royal Astronomical Society 1975

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