نتایج جستجو برای: at higher mlss concentrations
تعداد نتایج: 4371462 فیلتر نتایج به سال:
Background and purpose: Indoor air pollution in developing countries is considered as one of the main problems in healthcare. This study aimed at investigating the levels of indoor/outdoor air pollutants in Khorramabad during autumn and winter 2012. Materials and methods: In a cross-sectional study, nine gas concentrations and particulate pollutants were measured using air pollution measuring ...
a phase-locked loop (pll) based frequency synthesizer is an important circuit that is used in many applications, especially in communication systems such as ethernet receivers, disk drive read/write channels, digital mobile receivers, high-speed memory interfaces, system clock recovery and wireless communication system. other than requiring good signal purity such as low phase noise and low spu...
the aim of the present study was to investigate the frequency and the type of discourse markers used in the argumentative and expository writings of iranian efl learners and the differences between these text features in the two essay genres. the study also aimed at examining the influence of the use of discourse markers on the participants’ writing quality. to this end the discourse markers us...
the present study was an attempt to determine the types of motivation and levels of foreign language learning anxiety among efl students studying at azad and state universities in kermanshah and to determine the relationship between these two factors and language proficiency and gender. to this end, the foreign language learning motivation scale, by deci and ryan )1985(, were administered to 12...
Background: The canonical Wnt signal transduction (or the Wnt/β-catenin pathway) plays a crucial role in the development of animals and in carcinogenesis. Beta-catenin is the central component of this signaling pathway. The activation of Wnt/β-catenin signaling results in the cytoplasmic and nuclear accumulation of β-catenin. In the nucleus, β-catenin interacts with the TCF/LEF transcription fa...
The activated sludge has been acclimatized with chromium (VI) ions from 5 mg/L to 20 mg/L. It is observed that the chromium removal percentage, COD removal and mixed liquor suspended solid (MLSS) decrease with the increase in dilution rate. Maximum food to microorganisms ratio (F/M) is found to be 0.19. When initial metal ion concentration increases from 5 mg/L to 20 mg/L, the chromium removal ...
several therapeutic effects including hypnotic, antispasmodic, treatment of abdominal and chest pain and strengthening the heart have been described for the flowers of rosa damascena. north american indian tribes use a decoction of the roots obtained from the rosa damascena plant as a cough remedy and to treat eye problem. therefore, in the present study the antitussive effect of this plant in ...
duckweeds are of special interest, as they are naturally growing weeds that have the capacity to tolerate and remove toxic pollutants, including heavy metals from the environment. studies have revealed that duckweed (lemna minor) can tolerate and remove heavy metals from aqueous solutions. in the present study, the efficiency of l. minor in the removal of ni and cr individually from aqueous sol...
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