the purpose of this study was comparison of applicability of tertiary treatment of tehran domestic sewage with organic and inorganic coagulants or a combination of them. the far test procedure was applied utilizing: alum, polyelectrolyte wt 2600, anionic polyelectorlyte wt 3000, and nonionic polyelctrolyte wt 2690 as organic coagulants (products of calgon). the combination of lime with each of ...

The Wise Anaerobic Work Station permitted the growth of type cultures of a range of fastidious obligate anaerobes. In the isolation of anaerobic bacteria from clinical specimens the performance equalled that of a standard anaerobic jar incubated for 48 hours, and gave results superior to those obtained when incubation of jar cultures was interrupted at 24 hours. The Wise Anaerobic Work Station ...

This research aims to examine the efficiency of Polyaluminium Chloride (PAC) remove a reactive red 195 dye and find optimal condition coagulate this dye. In present investigation, effect pH (3-9) PAC dosages (500-5,000 mg/L) were studied 1,000 mg/L using jar test. The results showed that variations influenced PAC. With increase dosage, 500- 1,500 5,000 highest percentage colour removal in acidi...

Recently, a new decoding rule called jar decoding was proposed, under which the decoder first forms a set of suitable size, called a jar, consisting of sequences from the channel input alphabet considered to be closely related to the received channel output sequence through the channel, and then takes any codeword from the jar as the estimate of the transmitted codeword; under jar decoding, a n...

iranian historical houses constitute a significant part of the architectural heritage of the country both qualitatively and quantitatively though due research is not conducted on them. this study investigates t0he physical evolution of qajar house of baqeri in gorganand attempts to monitor life stream over its lifespan. the study also investigates the effect of external transformations on archi...

Previous research has revealed that infants can reason correctly about single-event probabilities with small but not large set sizes (Bonatti, 2008; Teglas et al., 2007). The current study asks whether infants can make predictions regarding single-event probability with large set sizes using a novel procedure. Infants completed two trials: A preference trial to determine whether they preferred ...