نتایج جستجو برای: zinc oxide at four levels zero
تعداد نتایج: 4796047 فیلتر نتایج به سال:
In this study, effect of press pressure used in the production of silver electrodes on the life of zinc - silver oxide batteries was investigated. For this purpose, initially four Ag electrodes (positive plate) with composition of 95 wt% silver oxide, 4.9 wt% carbon powder and 0.1 wt% resin prepared by powder metallurgy method and the press pressures of 40, 60, 80 and 100 bar was applied. Then,...
copper extraction from heap 3 low grade ore at sarchechmeh is limited due to its mixed composition (copper oxide and sulphide minerals). changing this heap to a bioheap could improve the copper recovery.
background: antibiotic resistant bacteria can be considered as a main problem in infection management. zinc oxide nanoparticles (zno nps), individually or in combination with antibiotics, can be considered as good candidates for struggling against drug resistant bacteria. methods: in this study, zinc oxide nanoparticles were synthesized using sol-gel method in low temperature as a cost effectiv...
abstract this study investigates the teachers’ correction of students’ spoken errors of linguistic forms in efl classes, aiming at (a) examining the relationship between the learners’ proficiency level and the provision of corrective feedback types, (b) exploring the extent to which teachers’ use of different corrective feedback types is related to the immediate types of context in which err...
Despite its superior characteristics, there is an increased concern about the environmental effects that zinc oxide causes and over the years lower levels of zinc have been tried in order to decrease its impact and to minimise the production costs. Different approaches have been considered for reducing zinc levels. Between all the alternatives proposed, the use of nano–sized ZnO particles with ...
To investigate the effect of foliar application of micronutrients and salicylic acid on seed and oil yield of canola under drought stress conditions, a field experiment was carried out as spilt factorial plots arrangemnts in randomized complet block design in 2016-17 and 2017-18 cropping seasons in Lorestan University, Khorramabad, Iran. Experimental treatments included; irrigation at two leve...
iron (in zero-valent and oxide forms) is used to remove numerous organic and inorganic contaminants in environment. however, there are few reports, especially in nano scale, on the remediation of heavy metals contaminated soils using zero-valent iron in the literature. in this study, the effect of iron on the availability of heavy metals was evaluated in a calcareous soil spiked with cadmium, z...
Zinc oxide has been considered as a promising semiconductor material for fabrication of transparent conductive oxides (TCOs), electronic devices, optoelectronics, and solar cells. Among the various morphologies of zinc oxide, nanorods are more widely used because of the ease of synthesis and providing a direct path for the transport of charge carriers. The electrochemical deposi...
In this study, the extract of coffee powder for green synthesis of zinc oxide nanoparticles has been used because it is compatibility with the environment and it does not produce any toxic substances in the reaction. Then, the interaction of zinc oxide nanoparticles with calf thymus DNA with various spectroscopic methods such as UV-Visible, fluorescence and circular dichroism (CD) techniques wa...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید