the experimental studies of methane conversion to higher hydrocarbons and methanol using a dielectric barrier discharge (dbd) reactor are presented in this article. the process is carried out at ambient atmospheric pressure and temperature. the dbd reactor is stimulated by an alternative voltage of 50 hz and amplitude of max.23kv. the examination of the effect of voltage and flow rates on metha...

conclusions toxic causes with an incidence of 49.6% were the most common cause of loss of consciousness among all age groups. results among the 123 children under investigation, 76 cases were male (61.8%) and 47 females (38.2%) with the mean age of 3.2 ± 0.64 years. the most common causes of loss of consciousness among children were as follows: toxic causes in 61 patients (49.6%), infectious ca...

in this study, the effect of several species of fermenting yeast and fermentation conditions (periodic aeration and temperature) on quality parameters of non-alcoholic beer is assessed. yeast starters with different inoculation percent were added separately into wort with determined gravity. wort was fermented for 48 h in different temperatures under aerobic condition or periodic aeration (ever...

background: primary pancreatic lymphoma (ppl) is a rare condition and its differentiation from most commonly adenocarcinoma is very important because of different prognosis and treatment strategies. the aim of this study was presenting different aspects for differentiating ppl from pancreatic adenocarcinoma. materials andmethods: during 14 months, 5 patients who underwent endoscopic ultrasonogr...

conclusions our results in terms of asami scores are comparable with the published literature. furthermore, our return to work is better than most european studies (63%). all our patients said they would have the procedure again. we attribute this success partly to the multidisciplinary approach. we recommend early referral to a dedicated unit if there is any evidence of a non-::union::. result...

attention-deficit/hyperactivity disorder (adhd) is a highly heritable neuropsychiatric disorder associated with significant impairments in occu pational, academic, neuropsychological, and social functioning. central nervous system (cns) stimulants are recommended as first-line medication therapy for children. cns stimulants include formulations of methylphenidate and amphetamine derivatives and...

background dyspepsia is a common symptom with an extensive differential diagnosis and a heterogeneous pathophysiology. many studies have reported that dyspeptic symptoms are associated with ingestion of some foods. current treatments for functional dyspepsia have generally ignored the potential role of diet. method this cross-sectional study was done at the gastroenterology department of shahid...

in this study, application of adaptive neuro-fuzzy inference system (anfis) in forecasting three perspectives (1, 2, and 4 years) ahead of iran’s agricultural products export was compared with arima as the most common econometrics linear forecasting method. for this purpose, iran’s agricultural products export revenues related to 1959-2010, and forecast performance measures such as r2, mad, and...

In this paper has been studied the wave equation in some non-classic cases. In the  rst case boundary conditions are non-local and non-periodic. At that case the associated spectral problem is a self-adjoint problem and consequently the eigenvalues are real. But the second case the associated spectral problem is non-self-adjoint and consequently the eigenvalues are complex numbers,in which two ...