نتایج جستجو برای: activation analysis
تعداد نتایج: 3193728 فیلتر نتایج به سال:
background: alzheimer's disease is the most common form of dementia which is still difficult to be differentiated from other types of brain disorders. moreover, mild cognitive impairment refers to the presence of cognitive impairments that is not severe enough to meet the criteria of alzheimer's, and its diagnosis in early stages is so critical. there is currently no distinct method available f...
Radiochemical neutron activation analysis (RNAA) has been routinely used at the National Bureau of Standards to analyze Cd in a variety of environmentally important matrices. The method used to separate Cd from other neutron-activated products is solvent extraction. Zinc diethyldithiocarbamate [Zn(DDC)2] in chloroform will quantitatively extract Cd from an aqueous solution over a pH range from ...
In this article, sintering activation methods of Mo powder (chemical, mechanical and surface activation) were studied. For this purpose, the milled/reduced Mo nanopowder was sintered at 900, 1100 and 1400 ºC for 1 hr. For comparison of sintering activation methods (mechanical and chemical activation) and their effects on microstructural characteristics, commercial micropowder Mo as well as Ni ...
Abstract Introduction: Students with anxiety symptoms are faced with various physical and psychological stressful factors which leads to decreasing quality of life. Considering the relationship between behavioral activation/ inhibition systems and cognitive emotion regulation with early maladaptive schemas, one of the methods capable of assisting the students with anxiety symptoms is schema t...
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