نتایج جستجو برای: radioactive trace elements

تعداد نتایج: 351116  

Background and Objectives: The present study was conducted to evaluate the presence of biochemical contents and trace elements, and detect phytochemicals in the edible part extracts of Asparagus officinalis DC and Chlorophytum comosum Linn by HPTLC. Materials and Methods: The biochemical contents and trace elements were determined by different biochemical methods, and trace elements’ presence ...

Journal: :Softwaretechnik-Trends 2007
Sven Wenzel

Motivation In model-driven engineering models enjoy the same status as customary source code. During the development process, many different versions or variants of models are created. Thereby, developers need to trace model elements between different versions to answer questions like Since when does element X exist in this model? or When did element Y disappear?. Regarding variants developers ...

Journal: :The Analyst 1995
Zaichick VYe A F Tsyb B M Vtyurin

To evaluate the importance of trace amounts of elements in thyroid cancer etiology and diagnostics, instrumental neutron activation analysis has been used to estimate Ag, Co, Cr, Fe, Hg, I,Rb, Sb, Sc, Se, and Zn concentrations in malignant and benign thyroid nodules as well as in apparently intact paranodular thyroid tissue. Resected material from 135 patients was obtained from operations. Fort...

Journal: :journal of tethys 0

there are three different basic dykes in the northeast of golpayegan area, central part of sanandaj-sirjan zone (ssz) including: mylonitic gabbros (group 1), alkali dioritic-basanitic dykes (group 2) and alkali monzogabbroic to monzodioritic dykes (group 3). group 2 and 3 cut post-collisional rocks and are related to after subduction processes of neo-tethys. geochemistry characteristic of studi...

Journal: :journal of sciences islamic republic of iran 0
a.a calagari

biglar permo-triassic bauxite deposit is located in ~15 km northwest of abgarm, southwest of ghazvin province, west of central iran. it consists of 8 stratiform and discontinuous bauxite lenses lying along the contact of ruteh (permian) and elika (triassic) carbonate formations. petrographically, the bauxite ores exhibit collomorphic-fluidal, pseudo-breccia, pseudo-porphyritic, panidio-morphic-...

Journal: :iranian journal of radiation research 0
s. safaverdi department of physics, alzahra university, tehran, iran f. roshani department of physics, alzahra university, tehran, iran m. lamehi rashti institute for research in fundamental sciences, tehran, iran sh. golkhoo research institute of women, alzahra university, tehran, iran z.m. hassan department of immunology, tarbiat modares university, tehran, iran l. langroudi department of immunology, tarbiat modares university, tehran, iran

background: trace elements play an important role in a number of biological processes. astaxanthin (asx), a carotoid pigment found in certain marine plant and animals, has shown anti cancer and anti free radical properties. this work intended to understand the effect of astaxanthin in breast cancer (invasive ductal carcinoma, idc) by using micro-pixe method. for this aim the concentration of tr...

Journal: :Waste management 2009
S Toller E Kärrman J P Gustafsson Y Magnusson

Incineration ashes may be treated either as a waste to be dumped in landfill, or as a resource that is suitable for re-use. In order to choose the best management scenario, knowledge is needed on the potential environmental impact that may be expected, including not only local, but also regional and global impact. In this study, A life cycle assessment (LCA) based approach was outlined for envi...

2003
Christopher G. Worley Lisa P. Colletti

Preparing dry specimens from liquid samples for XRF analysis avoids introducing caustic or hazardous liquids into the instrument. Several modifications were made to a dried residue specimen preparation method for quantifying gallium in plutonium metal in order to improve the method accuracy and precision. Ion exchange chromatography was utilized to remove the plutonium prior to casting the drie...

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