Volume 31, Issue 2

 

ارسال های اخیر

  • Mixing Studies in Loop Bioreactors for Production of Biomass from Natural Gas 

    Yazdian,, Fatemeh؛ Shojaosadati, Sayed Abbas؛ Nosrati, Mohsen؛ Pesaran Haji Abbas, Mahdi؛ Vasheghani-Farahani, Ebrahim (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2012-06-01)
    The mixing behavior of the gas-liquid phase in three loop bioreactors was investigated. A gas-induced External Airlift Loop Bioreactor (EALB), a forced-liquid Vertical Tubular Loop Bioreactor (VTLB) and a forced-liquid ...

  • Finding Exact and Solo LTR-Retrotransposons in Biological Sequences Using SVM 

    Torabi Dashti, Hesam؛ Masoudi-Nejad, Ali؛ Zare, Fatemeh (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2012-06-01)
    Finding repetitive subsequences in genome is a challengeable problem in bioinformatics research area. A lot of approaches have been proposed to solve the problem, which could be divided to library base and de novo ...

  • Effect of Different Drying Methods on Saffron (Crocus Sativus L) Quality 

    Maghsoodi, Vida؛ Kazemi, Akhtar؛ Akhondi, Ebrahim (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2012-06-01)
    The substances responsible for saffron's characteristic quality are crocins, picrocrocin, and safranal. The drying process is critical to the saffron quality as measured by levels of secondary metabolites, crocin (color ...

  • Purification and Partial Characterization of a Thrombin-Like Enzyme (AH144) from Venom of Iranian Snake Agkistrodon Halys 

    Ghorbanpour, Mohammad؛ Zokaee Ashtiani, Farzin؛ Zare Mirakabadi, Abbas؛ Zolfagharian, Hosein (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2012-06-01)
    The snake venom´s thrombin-like enzymes comprise a number of serine proteases, which are functionally and structurally related to thrombin. Purification and partial characterization of a thrombin-like enzyme from the ...

  • Application of Rheological Modeling in Food Emulsions 

    Samavati, Vahid؛ Emam-Djomeh, Zahra؛ Mohammadifar, Mohammad Amin؛ Omid, Mahmoud؛ Mehdinia, Ali (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2012-06-01)
    Various scaling methods such as relative viscosity, Peclet and Reynolds scaling were used to find the best scaling law. Scaling and modeling of the flow curves of various model emulsions consist of Tragacanth Gum (TG) ...

  • Experimental Examination of Sulfur Dioxide Dry Removal from a Mixture of Gases by Calcium Oxide, Calcium Carbonate and Dolomite 

    Đurić, Slavko؛ Brankov, Saša؛ Stanojević, Petko؛ Božičković, Ranko (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2012-06-01)
    This paper refers to an experiment of SO2 absorption to the three different sorbents: calcium-oxide (CaO), calcium-carbonate (CaCO3) and dolomite (CaMg(CO3)2

  • Tubular MFI Zeolite Membranes Made by In-Situ Crystallization 

    Kazemzadeh, Akram؛ Bayati, Behruz؛ Kalantari, Neda؛ Babaluo, Ali Akbar (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2012-06-01)
    Polycrystalline MFI zeolite membranes were prepared on α-alumina tubular support by hydrothermal treatments at 413 K. The synthesized zeolite membranes were characterized by XRD, SEM and single gas permeation. The ...

  • Calculation of Franck-Condon Factors for a Number of Band Systems of Diatomic Molecules Using Hua Potential 

    Majedifa,, Hojat؛ Islampour, Reza (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2012-06-01)
    This work deals with the calculation of Franck-Condon factors using Hua potential function for the first time. The advantages of this function have been mentioned, and the numerical methods are used to obtain Franck-Condon ...

  • Liquid - Liquid Extraction of 2, 3-Butanediol from Fermentation Broth 

    Pahlavanzadeh, Hassan؛ Khayati, Gholam؛ Ghaemi, Nasser؛ Vasheghani-Farahani, Ebrahim (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2012-06-01)
    Recovery of metabolites from fermentation broth by solvent extraction can be used to optimize fermentation processes. End-product reutilization, low product concentration, large volumes of fermentation ...

  • Hydrodynamics of a Gas-Solid Fluidized Bed at Elevated Temperatures Using the Radioactive Particle Tracking Technique 

    Sanaei, Shabnam؛ Mostoufi, Navid؛ Radmanesh, Ramin؛ Sotudeh Gharebagh, Rahmat؛ Chaouki, Jamal (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2012-06-01)
    Effect of temperature on hydrodynamics of bubbling gas-solid fluidized beds was investigated.  Experiments were carried out in the range of 25-600 ºC and different superficial gas velocities in the range of 0.17-0.78 ...

  • Mass Transfer Mechanism and Mathematical Model for Extraction Process of L-Theanine across Bulk Liquid Membrane 

    Du-shu, Huang؛ Zhong-zhou,, Yi؛ Zhao-long, Huang؛ Ping,, Yi؛ Zi-jin, Li (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2012-06-01)
    This paper deals with the extraction of L-Theanine containing Aliquat 336 as a carrier and cyclohexane as solvent across bulk liquid membrane. The optimum operation condition are as follows: extraction time of 150 ...

  • V2O5-MoO3 Catalysts Preparation and Performance Testing on the Oxidation of Benzene to Maleic Anhydride in a Fixed Bed Reactor 

    Uraz, Canan؛ Atalay, Süheyda (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2012-06-01)
    In this research, the selective oxidation of benzene to maleic anhydride (MAN) in a fixed-bed reactor was studied. The gas phase catalytic oxidation of benzene was carried outin a laboratory scale fixed bed reactor on ...

  • A Research on Determination of Lecithin in Eggs by Applying Microwave Digestion Techniques and Spectrophotometry 

    Wu,, Min؛ Ge, Qing-lian؛ Gao,, Yu-shi؛ Chen, Kuan-wei (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2012-06-01)
    A method to quick detect concentration of lecithin in eggs, namely microwave digestion spectrophotometry, was established in this research. The homogenate of eggs was treated with absolute ethanol to eliminate phosphate ...

  • Oxidation of Methyl Orange Solution with Potassium Peroxydisulfate 

    Zhong, Jun bo؛ Li, Jian zhang؛ Lu, Yan؛ Huang, Sheng tian؛ Hu, Wei (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2012-06-01)
    Oxidation of Methyl Orange (MO) solution in potassium peroxydisulfate (KPS) homogeneous reaction system without UV irradiation was investigated. The result shows that decolorization of MO increases as the dosage of ...

  • Efficient Synthesis and Deprotection of Semicarbazones under Solvent-Free Conditions 

    Naimi-Jamal, Mohammad Reza؛ Mokhtari, Javad؛ Dekamin, Mohammad Gorban؛ Javanshir, Shahrzad؛ Hamzeali, Hamideh (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2012-06-01)
    Effective methodologies for efficient preparation of semicarbazones from aldehydes or ketones via milling and the subsequent regeneration of the parent carbonyls by gaseous nitrogen dioxide are described under solid-solid ...