conclusions with the proper operation of wastewater the treatment plant and increasing the retention time, the removal efficiency of the detergents increased. in addition, according to the environmental standards for bod5, cod and the detergents, the results of the present study indicated that the outputs of these parameters from the sbr system were appropriate for agricultural irrigation. resu...

background: cesarean delivery is a surgery for deliver a baby. women with previous cesarean delivery (cd) must often choose between a vaginal delivery (vd) and repeat cd. our aim of this study was to investigate factors associated with preference for cd in neyshabur pregnant women with previous cd. methods: a cross‑sectional study was conducted on all pregnant women (who had previous caesarean ...

background: nowadays, there has been a growing trend of caesarean sections in iran. one reason would be the mother’s desire. increased maternal self‑efficacy can be an important step to reduce percentage of cesarean. this study aimed to determine the effectiveness of training‑based strategies to increase the self‑efficacy for choosing delivery method among pregnant women in shahrekord city. met...

The performance of a mixed microbial community was tested in lab-scale power-to-methane reactors at 55 °C. main aim to uncover the responses starvation and stoichiometric H2/CO2 supply as sole substrate. Fed-batch were inoculated with fermentation effluent thermophilic biogas plant. Various volumes pure gas mixtures injected into headspace daily process parameters followed. Gas composition meas...

In this paper recent semi-batch chromium sludge processing is compared with batch processing by simulation means mainly. A possible time and/or power consumption reduction using these two techniques is monitored to optimize the process. The process itself is strongly exothermic so the temperature control is necessary to keep the temperature under critical temperature point.

the objective of this research was to investigate the influence of the over-expression of recombinant interferon-g during high cell density cultivation on cellular characteristics of recombinant e. coli. batch and fed-batch culture techniques were employed to grow escherichia coli bl21 for production of human gamma-interferon in pet expression system. final cell densities in batch and fed-batch...

This paper considers the parcel hub scheduling problem (PHSP) with unequal batch size inbound trailers, which is a combinatorial optimization problem commonly found in a parcel consolidation terminal in the parcel delivery industry (PDI). The problem consists of processing a large number of inbound trailers at a much smaller number of unload docks. The parcels in the inbound trailers must be un...

This paper studies the multi-stage supply chain system (MSSCM) controlled by the kanban mechanism. In the kanban system, decision making is based on the number of kanbans as well as batch sizes. A kanban mechanism is employed to assist in linking different production processes in a supply chain system in order to implement the scope of just-in-time (JIT) philosophy. For a MSSCM, a mixed-integer...

background: the increasing number of cesarean section is a great concern in many countries. in iran cesarean section rate has been steadily rising from 35% in 2000 to 40% in 2005. preferences for cesarean are often associated with some factors. objective: to investigate factors associated with preference for cesarean delivery, with special emphasis on pregnant women’s preferences in first pregn...