A series of Mo-containing MFI zeolites with different Mo loadings (Mo-MFI-n, n represent the initial Si/Mo molar ratio) was hydrothermally synthesized by using tetrapropylammonium hydroxide as template and Mo-EDTA complex source. Various characterization results demonstrated that use is beneficial for incorporation more species into MFI-type zeolites. The special complexing capability EDTA2– pl...

This paper presents an analysis of the major mechanical component (the thorax) of the micromechanical flying insect (MFI), a centimeter sized aerial vehicle currently in development at UC Berkeley. We present a description of the kinematics of the mechanism which converts piezoelectric actuation into complex 3D wing motion. A complete non-linear modeling of the system based on the Lagrangian en...

A comparison of different approaches of the formation and evolution of sub-colloidal precursor species during crystallization of MFI-type zeolites showed that, although the formation of sub-colloidal precursor species is almost the same in both homogeneous [initially clear (alumino)silicate solutions] and heterogeneous [(alumino)silicate hydrogels], their further evolution strongly depends on t...

Methods Included were Dutch, male, adult, HIV-1 infected patients, attending the AMC outpatient clinic who seroconverted after December 31st of 1996. 59 Patients identified during PHI and a randomly selected group of 99 patients that were identified with CHI in the same period were eligible. Patients were excluded if they ever had an CDC-C event or suffered any significant comorbidity. Subjects...

Background: Frailty, defined as a state of decreased physiologic reserve, characterized by loss resiliency in the face acute stress is condition frequently encountered liver surgeons. We sought to evaluate frailty predictor postoperative complications following resection using modified index (mFI). Methods: This retrospective cohort study follows consecutive adult patients undergoing between 20...

جداسازی ایزومرهای آلکانها توسط زئولیتها از اهمیت ویژه ای برخوردار است. در این تحقیق روش مونت کارلو برای شبیه سازی مولکولی جذب ایزومرهای پنتان بصورت خالص و مخلوط دوجزئی روی زئولیت mfi مورد استفاده قرار گرفته است. اثر مقدار آلومینیم در زئولیت mfi (با نسبت سیلیسیم به آلومینیم 18، 31 و ∞ ) روی جذب ایزومرهای پنتان مورد بررسی قرار گرفت. نتایج بدست آمده نشان داد که ساختارهای با نسبت سیلیسیم به آلومینی...

mfi zeolite membranes were prepared on porous α-alumina substrates, using secondary growth of nano-seeded layers. the resulting membranes were characterized by means of scanning electron microscopy (sem), x-ray diffractometry (xrd), and pervaporation performance tests for separation of benzene, toluene and xylene (btx) mixture from contaminated water. the morphology, thickness, homogeneity, cry...

The oxidative cleavage of vicinal diols to carboxylic acids was investigated over heterogeneous Fe/MFI catalysts in aqueous medium, with green oxidant H2O2 and mild reaction conditions. High conversions selectivities (X=90 %, S=79 %) were achieved for the ethylene glycol. Further substrates also tested broadening relevance this catalyst. employment non-noble abundant Fe as active metal MFI-type...