context this article reviews the available evidence about the barrier membranes utilized in guided tissue regeneration process to prevent the migration of unfavorable cells to the wound area. evidence acquisition available evidence about membranes properties and their different uses were reviewed, and the results of clinical and animal studies and systematic reviews were gathered. results a lar...

In this study, the removal of Pb(II), Cu(II), Cd(II), and Zn(II) ions from aqueous solutions was investigated using succinic anhydride modified cellulose monoacetate. first part, acetate successfully succinylated in a homogenous medium DMF 4-dimethylaminopyridine (DMAP) as catalyst. The obtained material (AcS) analyzed by FTIR CP/MAS 13 C NMR Spectroscopy, thermogravimetry analysis DRX patterns...

The olefins polymerization process in a slurry reactor is discussed. The reaction rate dynamics was analyzed and the contributions of feed flow, gas-liquid mass transfer, polymerization reaction, and catalyst deactivation were estimated. The propylene solubility in a solvent mixture “heptane” was calculated using Soave-Redlich-Kwong equation of state. These data were then approximated by Henry-...

Hydrogen production through methane dry reforming holds the promise of lowering greenhouse gases, that is CO2 and CH4, concentrations. Herein, Ca-, Cr-, Ga- Gd-promoted lanthana-zirconia–supported Ni catalysts are investigated characterized by X-ray diffraction, Raman, infrared UV-vis spectroscopy, CH4-temperature programmed surface reaction cyclic reduction-desorption experiment. All promoted ...

This study was conducted to evaluate the effects of a diesel particulate filter (DPF) regeneration process on the concentrations and size distributions of aerosols in an underground mine. Two active regeneration strategies were examined for an electrically regenerated sintered metal fiber filtration system, and the effects were compared with those observed for a muffler and the same system oper...

BACKGROUND The metal–acid bifunctional catalysts are widely used in many industrially significant chemical processes, including hydroisomerization of n-hexane. Deactivation and regeneration extrudates was investigated continuous n-hexane a fixed-bed reactor. Four Pt/H-Beta-25 containing 30% Bindzil binder were prepared with the same composition controlled metal deposition. RESULTS Different pre...

The position of cultural regeneration to develop social and economic growth in a post-black economy district like former sex leisure business is becoming thought-provoking investigation. This research focuses on specific observation find the relationship between prostitution culture-led urban reinforcement through creative industry? What are influences behind rise borough redevelopment such pla...