Fluid catalytic cracking (FCC) is an industrial process to convert heavy petroleum cuts into light products, such as gasoline and light olefins. In this research, a steady state one dimensional model of FCC riser using a four-lump kinetic model was presented. Equations for mass, momentum, and energy balances were written and coded by MATLAB. It is assumed that the catalyst particles in the riser are moving upward as clusters. Using the model, product yield, temperature profile in the riser, gas and solid velocity and catalyst decay rate along the riser were investigated. Obtained results are in good agreement with published industrial data.

Drying properties of high moisture potato slices with initial moisture content of about 4.06 (db) under thin layer fixed, semi FLUIDIZED and FLUIDIZED bed conditions were studied. Drying air temperatures of 40, 50, 60 and 70oC were applied in experiments using a laboratory FLUIDIZED bed convective dryer. In order to predict the drying behavior of potato slices, seven thin layer drying models were applied from where finally Midilliet al. model was selected as the suitable one, based on comparative indices. Effective moisture diffusivity of the potato slices varied between 4.29×10-9 and 15.70×10-9 m2 s-1 for fixed and FLUIDIZED bed conditions, respectively. Moisture diffusivity values of the slices were increased as the drying air temperature levels increased. Activation energy values varied between 15.88 and 24.95 kJ mol-1. Minimum and maximum values of activation energy were obtained at minimum FLUIDIZED and fixed bed conditions, respectively. Consumption of specific energy for thin layer drying of high moisture potato slices was obtained between 0.45×105 and 1.64×105 (kJ kg-1). Increase in the drying air temperature in each bed condition caused increase in energy consumption. The maximum value of energy consumption was obtained at FLUIDIZED bed conditions.

Chlorodiazepoxide is an anxiolytic agent commonly used by young people and pregnant women to reduce anxiety and control preeclampsia and eclampsia. Some studies have shown that this medication disrupts the functioning of the cholinergic system. Due to the increased cellular damage of BAD gene expression, the effect of cholorodiazepoxide used during pregnancy on BAD gene expression in the hippocampus of neonatal rats was investigated. In this study, 9 female Wistar rats were pregnant and randomly divided into three groups: control, experimental (intraperitoneal injection of chlordiazoxoxide 10 mg / kg for 21 days) and carriers (saline). Two weeks after the birth, the brain of the neonates was removed from the skull and the expression of the propaoptotic gene of BAD was investigated. The level of gene expression was analyzed by Rest software and a significant level of P <0. 05 was considered. Propoptotic gene, BAD showed significant increase in experimental group compared to control group. The results of this study indicated that the administration of chlorodiazepoxide during pregnancy can cause neuronal damage in the hippocampus of Wistar rats.

The increasing number of multi-antibacterial drug-resistant infections worldwide and the diminishing number of new antibacterial drugs in development with the potential to treat these infections represent one of the world's greatest health threats. The World Health Organization (WHO) has supported this premise, identifying antimicrobial resistance as one of the three greatest threats to human health.

A dynamic model representing the continuous FLUIDIZED bed dryer is presented. The model takes into account the presence of the three phases: bubble phase, cloud phase and emulsion phase. The transient analysis for step disturbances in the input variables is obtained. The influence of operating conditions on the dynamics of the dryer is discussed and the results are compared with the experiment. The model can be used for developing a model based on other suitable control strategies.