in this work a new resistance model has been presented based on that of henis-tripodi which can be used for interpretation of gas permeation data in composite and asymmetric membranes. in contrast to the previous works, in this model the fraction of the support layer surface that includes the pores filled with coating material has been taken into account. the influences of the filled pores on s...

With the fast development and utilization of underground space resource in cities, the spatial distribution of urban underground pipelines becomes more and more complex. How to efficiently utilize the latest technology, realize underground space resources' management, visualization, layout optimization and mine applications, are challenging issues in current digital city development. Taking int...

Human immunodeficiency virus (HIV) protease inhibitors (PIs) are important components of highly active anti-retroviral therapy (HAART) that block the catalytic site of HIV protease, thus preventing maturation of the HIV virion. However, with two decades of PI prescriptions in clinical practice, drug-resistant HIV mutants have now been found for all of the PI drugs. Therefore, the continuous dev...

Submit Manuscript | http://medcraveonline.com J Bacteriol Mycol Open Access 2015, 1(1): 00001 The development of antimicrobial resistance is inevitable and inherent to the remarkable mechanisms of bacterial adaptation to adverse environmental conditions in order to survive. However, many human actions have contributed to the currently observed acceleration and spread of antimicrobial resistance...

Using fiber laser welding technology, X80 pipeline steel welded joints with different heat inputs were obtained. Their microstructure, mechanical properties, and corrosion resistance (in NACEA solution saturated hydrogen sulfide) studied. Findings indicated that the increase in input, proportion of ferrite, strength, elongation, increased within a certain range sum martensite bainite hardness d...