Biogas biodesulfurization by an anoxic biotrickling filter packed with open pore polyurethane foam at the laboratory scale (packed volume 2.4L) has been studied. The biotrickling system was operated for 620 days with biogas supplied continuously and two nitrate feeding regimes were tested (manual and programmed). Biomass immobilization was carried out under the manual nitrate feeding regime and...

In the present study, a laboratory scale corn-cob based biofilter inoculated with pseudomonas fluorescents (mtcc 9768) was used for investigating the degradation of ethylbenzene and m-xylene for a period of 60 days in two phases. for ethylbenzene maximum removal efficiency (re) was 72% at an inlet concentration of 4.26 gm -3 and for m-xylene re was 76% at an inlet concentration of 6.39 g m -3 a...

Shaft lining concrete itself has a certain degree of initial damage before being corroded by sulfate. In order to study the resistance of the concrete of the initial damage in different corrosion solution concentration of sulfate, samples of concrete without initial damage, loaded 50% ultimate load and loaded 70% ultimate load with initial damage concrete were selected and studied their corrosi...

Oral glucose tolerance tests were performed in healthy infants, aged one to 29 days. Capillary blood samples were obtained from heel stabs for estimation of glucose and insulin immediately before and 30, 60 and 120 minutes after the administration of glucose (2.0g per kg body weight). The younger infants tended to have delayed and diminished insulin responses to a glucose load than did older in...

With the rapid economic development, the water quality is getting worse in Haraz River Basin and the adjacent areas. To improve the water quality, the total inland pollutant load should be controlled effectively. Therefore, a simulation model for the prediction of the steady-state water quality in terms of BOD, based on Streeter Phelps equation, was developed. The Streeter-Phelps equation gives...

We propose a two-dimensional model for a complete description of the dynamics of molecular motors, including both the processive movement along track filaments and the dissociation from the filaments. The theoretical results on the distributions of the run length and dwell time at a given ATP concentration, the dependences of mean run length, mean dwell time and mean velocity on ATP concentrati...

Methods In this work, an artificial intelligence technique known as the hybrid Bacterial Foraging Particle Swarm Optimization (BFPSO) algorithm is used in conjunction with the three dimensional patient specific HIV model, for estimation of optimal drug concentration. In the mathematical model, it is assumed that the drug acts directly on the viral burden. The optimization problem is formulated ...

PURPOSE The purpose of the present work was to assess iontophoretic permeation of Lisinopril at different current densities and concentrations for development of patient-controlled active transdermal system. METHODS In vitro iontophoretic transdermal delivery of Lisinopril across the pigskin was investigated at three different drug concentrations and three different current densities (0.25- 0...

There is an ongoing demand for easily accessible biomarkers related to pathophysiological processes in chronic obstructive pulmonary disease (COPD). Short-term intense exercise is known to increase the peripheral blood levels of cytokines. Therefore, we tested the potential and the repeatability of an exercise challenge to amplify seven serum biomarkers (interleukin 6 [IL6], C-reactive protein ...

The aim of this study was to test the hypothesis that a change in serum cartilage oligomeric matrix protein (COMP) concentration is related to joint load during a 30-min walking exercise in patients with medial compartment knee osteoarthritis (OA) and in age-matched control subjects. Blood samples were drawn from 42 patients with medial compartment knee OA and from 41 healthy age-matched contro...