نتایج جستجو برای: synergistic effect of mixed collectors

تعداد نتایج: 21229619  

Journal: :iranian journal of catalysis 0
negar zekri college of chemistry and chemical engineering, malek-ashtar university of technology, tehran, 16765-3454, i. r. iran. reza fareghi-alamdari college of chemistry and chemical engineering, malek-ashtar university of technology, tehran, 16765-3454, i. r. iran.

a series of copper and cobalt substituted nanospinel ferrites have been synthesized by the hydrothermal method. these compounds were characterized by ft-ir, xrd, edx, sem and vsm techniques. all of the synthesized nanospinel ferrites were found to be highly efficient and magnetically recoverable in the solvent-free synthesis of substituted 2,6-(2-hydroxybenzyl)-phenols (trisphenols). a wide ran...

Journal: :avicenna journal of phytomedicine 0
saman soleimanpour antimicrobial resistance research center, school of medicine, mashhad university of medical sciences, mashhad, iran fereshteh sadat sedighinia department of biology, neyshabur branch, islamic azad university, neyshabur, iran akbar safipour afshar department of biology, neyshabur branch, islamic azad university, neyshabur, iran reza zarif antimicrobial resistance research center, school of medicine, mashhad university of medical sciences, mashhad, iran kiarash ghazvini antimicrobial resistance research center, school of medicine, mashhad university of medical sciences, mashhad, iran

objective: in this study, antimicrobial activities of an ethanol extract of tribulus terrestris aloneand in combination with capsella bursa-pastoris and glycyrrhiza glabra were examined in vitro against six pathogens namely streptococcus mutans, streptococcus sanguis, actinomyces viscosus, enterococcus faecalis staphylococcus aureus, and escherichia coli. materials and methods: antibacterial ac...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 1381

‏‎the hypothesis is that recent and frequent exposure to lexical items leads to a more fluent production of speech in terms of rate of speech. to test the hypothesis , a one- way anova experimental design was carried out. 24 senior student of efl participated in a one-way interview test. data analyses revealed that those who were exposed frequently to the lexical items over a week prior to inte...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه هنر - دانشکده سینما و تئاتر 1387

since the modern art is chosen to discuss, it means a wide expansion of art courses are affected by modernism that enter to the new realms. because of expanded subject, lack of sources and also the close relationship between painting and animation, this thesis emphasizes on the painting and it is recommended to use the phrase “modern painting” instead of modern art (which is more general). thi...

Journal: :Advanced Energy Materials 2022

Rechargeable Magnesium Batteries In article number 2201608, Jianxin Zou, Richard M. Laine, and co-workers show that co-doped FeS2 cathodes coupled with the inexpensive phenolate-based magnesium complex electrolyte copper collectors for rechargeable batteries, exhibit considerable electrochemi cal performance. Characterization results indicate capacity is mainly contributed to reaction of Mg Cu-...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - پژوهشکده علوم انسانی و اجتماعی 1390

this study attempts to investigate the effect of peers’ revision in comparison to that of the teacher, and whether peers’ comments and teachers’ comments facilitate students’ revision? if yes, which one is more effective? also attempts have been made to see which aspects of language are more highlighted by peers versus teachers when commenting. besides, it is investigating the student’s attitud...

Jiang-nan Yu Li Wang, Min Peng, Shan-shan Tong Xi-ming Xu Xia Cao Yuan Zhu,

Pluronic/bile salt/phospholipid mixed micelles (Pluronic/BS/PS-MM) drug carrier system for solubilization hydrophobic drugs was developed. A typical hydrophobic compound, pyrene, was selected as a representative hydrophobic compound to model the hydrophobic drugs. Five Pluronics, F68, F88, F98, F108, and F127 with different PPO chain length were studied. CMC data and solubilization capacities w...

Jiang-nan Yu Li Wang, Min Peng, Shan-shan Tong Xi-ming Xu Xia Cao Yuan Zhu,

Pluronic/bile salt/phospholipid mixed micelles (Pluronic/BS/PS-MM) drug carrier system for solubilization hydrophobic drugs was developed. A typical hydrophobic compound, pyrene, was selected as a representative hydrophobic compound to model the hydrophobic drugs. Five Pluronics, F68, F88, F98, F108, and F127 with different PPO chain length were studied. CMC data and solubilization capacities w...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 1381

‏‎the hypothesis is that recent and frequent exposure to lexical items leads to a more fluent production of speech in terms of rate of speech. to test the hypothesis,a one-way anova experimental design was carried out. 24 sednior students of efl participated in a one-way interview test. data analyses revealed that those who were exposed frequently to the lexical items over a week prior to inter...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم پایه 1391

a simple, rapid and low-cost scanner spectroscopy method for the glucose determination by utilizing glucose oxidase and cdte/tga quantum dots as chromoionophore has been described. the detection was based on the combination of the glucose enzymatic reaction and the quenching effect of h2o2 on the cdte quantum dots (qds) photoluminescence.in this study glucose was determined by utilizing glucose...

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