in this paper, the removal of phenol by using aqueous solution in a low pressure reverse osmosis membrane was investigated. the effect of feed pressure, feed concentration, feed flow rate and feed ph on phenol rejection was investigated. the results showed that feed ph is the most affective parameter on the phenol rejection. rejection of phenol increased with increasing ph from 2 to 10 under th...

An important open problem in Reverse Mathematics ([16, 25]) is the reduction of the first-order strength of the base theory from IΣ1 to I∆0 + exp. The system ERNA, a version of Nonstandard Analysis based on the system I∆0 + exp, provides a partial solution to this problem. Indeed, Weak König’s lemma and many of its equivalent formulations from Reverse Mathematics can be ‘pushed down’ into ERNA,...

fab-less business model in semiconductor industry has led to serious concerns about trustworthy hardware. in untrusted foundries and manufacturing companies, submitted layout may be analyzed and reverse engineered to steal the information of a design or insert malicious trojans. understanding the netlist topology is the ultimate goal of the reverse engineering process. in this paper, we propose...

background:in the recent decade, the reverse genetics method has been broadly used for rescue of negative-stranded rna viruses from cdna or viral minigenomes. this technique has been applied to study different steps in virus replication and virus-host interactions. reverse genetics could also be implemented for design of new vaccines. the t7 rna polymerase activity as well as virus (nucleocapsi...

synovial chondromatosis affecting the glenohumeral joint is rare. treatment primarily consists of arthroscopic loose body removal and synovectomy. shoulder arthroplasty has been mentioned in the literature as a treatment option for patients with coexisting arthritis, although the results have been underreported. the case of an 84-year-old man with long standing synovial chondromatosis of the sh...

Reverse engineering a program constructs a high-level representation suitable for various software development purposes such as documentation or reengineering. Unfortunately however, there are no established guidelines to assess the adequacy of such a representation. We propose two such criteria, completeness and accuracy, and show how they can be determined during the course of reversing the r...

with the increasing installed capacity of desalination, the greenhouse gas emission for generating the required energy to power the desalination plants is also becoming the focus of attention in the world community. domestic reverse osmosis membranes have been very successful technology especially in the developing world to provide safe drinking water. the novel concept of photovoltaic powered ...

background and purpose: gastric cancer (gc) is one of the most common cancers worldwide and in iran. as conventional therapies such as surgery and chemotherapy are invasive with adverse effects, current studies are important as they are conducted to find natural compounds with few adverse effects. in this study, melittin with 26 amino acids was isolated and purified from bee venom and its effec...