نتایج جستجو برای: which had edta

تعداد نتایج: 4074092  

پایان نامه :0 1392

nowadays in trade and economic issues, prediction is proposed as the most important branch of science. existence of effective variables, caused various sectors of the economic and business executives to prefer having mechanisms which can be used in their decisions. in recent years, several advances have led to various challenges in the science of forecasting. economical managers in various fi...

Journal: :Applied and environmental microbiology 2000
J D Morton K F Hayes J D Semrau

Soluble methane monooxygenase (sMMO) activity in Methylosinus trichosporium OB3b was found to be more strongly affected as copper-to-biomass ratios changed in a newly developed medium, M2M, which uses pyrophosphate for metal chelation, than in nitrate mineral salts (NMS), which uses EDTA. When M2M medium was amended with EDTA, sMMO activity was similar to that in NMS medium, indicating that EDT...

2010
R. Harjula L. Malinen R. Koivula

Two titanium antimonate materials were tested for the removal of radiocobalt from a solution containing complexing agent EDTA to simulate a nuclear power plant decontamination solution. The first material had a mixture of pyrochlore and rutile structures and it showed high removal (91 %) of radiocobalt was removed in the presence of EDTA. The second material, which had a mopungite structure, sh...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده ادبیات 1390

this study is an outlook of iranians religious practices and customs in eras such as nasser one. it attempts to answer the main question, "religious practices and ceremonies in the society during naseri ruling" and other subsidiary questions with scientific and historical theories. iran was a traditional and religious community . people abided by their religious practices and duties within reli...

Journal: :iranian journal of microbiology 0
ahya abdi-ali department of biology, faculty of sciences, alzahra university,tehran, iran. f khani-juy abad department of biology, faculty of sciences, alzahra university,tehran, iran. s gharavi department of biology, faculty of sciences, alzahra university,tehran, iran.

background and objectives: pseudomonas aeruginosa is an opportunistic pathogen that can produce biofilm. biofilm is a complex, three dimensional structure in which microorganisms are attached to a surface and embedded in a matrix made of extracellular polymers. due to high resistance to antimicrobial agents, biofilms create difficulties in various situations in healthcare. in this study, antibi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیخ بهایی - دانشکده زبانهای خارجی 1392

the purpose of this study was to investigate the impact of blended learning and multimedia softwares on iranian efl students vocabulary learning. in addition, the present study tried to examine the extent to which multimedia softwares can be applied into efl classes in iran. it also attempted to find out students attitudes toward using these softwares. to this end, 87 iranian efl learners at el...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - پژوهشکده ادبیات 1393

testing plays a vital role in any language teaching program. it allows teachers and stakeholders, including program administrators, parents, admissions officers and prospective employers to be assured that the learners are progressing according to an accepted standard (douglas, 2010). the problems currently facing language testers have both practical and theoretical implications but the first i...

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