A two-liquid-phase bioreactor was designed to extract indole alkaloids from Catharanthus roseus hairy roots with silicon oil. Partition studies between silicon oil and culture medium showed that the silicon oil did not alter the availability of nutrients. The affinity of tabersonine and löchnericine for silicon oil is nine times higher than for the aqueous phase. Cultures were elicited with 25 ...

abstract:any effects of wood coating with different compounds as nano-zinc, nano-chitosan, chitosan, silicon oil and flaxseed oil on surface properties as; wood color change, surface roughness and wettability were studied in the current research work. for this purpose, sample boards of beech wood were cut into sizes of 2×10×20cm. the specimens were coated with the noticed coatings and tested fo...

In order to overcome existing complicated and costly simultaneous measurement system, an inexpensive and simple measurement system was suggested to measure the temperature field and velocity field at high temperature. The manganese-activated magnesium fluorogermanate (Mg4FGe6:Mn, MFG) which is one of thermographic phosphor with luminescence characteristic of excitation at 385 nm wavelength and ...

Aim: To objectively document findings at the Silicon oil-Retinal interface, macular status and tamponade effect in Silicon Oil (SO) filled eyes using SD OCT. Methods: 104 eyes of 104 patients underwent SD OCT examination, horizontal and vertical macular scans, in silicone oil filled eyes which underwent silicone oil injection post vitrectomy for rhegmatogenous retinal detachment. Findings were ...

Silicon Carbide is often proposed as a sensor material for use in harsh environment applications such as monitoring gas turbines and internal combustion engines. However, little SiC survivability research has been reported for these environments. In this work, data is reported for silicon and amorphous silicon carbide (a-SiC) coated die survivability in a combustion engine with an exhaust tempe...

BACKGROUND To evaluate the surgical outcome for management of giant retinal tear (GRT) more than 180° by combined pars plana vitrectomy (PPV), encircling scleral buckle, 360° Laser endophotocoagulation, and silicon oil tamponade. METHODS This was a Prospective, interventional case series study. Twenty four eyes of 23 patients suffering from GRT more than 180° underwent PPV combined with encir...

According to the aging phenomenon that di-methyl silicon oil working as a cooling material for liquid-immersed concentrating photovoltaic system for long time. In this paper, the method that enhances the weather-resistance of silicon oil by adding additives was proposed. Hydroxy-4-methoxy-benzophenone (UV-9) and a hindered amine light stabilizer named GW-783 were selected as additive to prepare...

Objective: To compare the mean changes in central corneal thickness (CCT) and corneal endothelial-cell density (CED) after removal of silicon oil (ROSO) using anterior (limbal) versus posterior (pars plana) approach in aphakic patients following successful retinal re attachment surgery. Study Design: Randomized controlled trial. Place and Duration of Study: Armed Forces Institute of Ophthalmolo...

The aim of this study was to compare the solubility of selected volatile organic compounds in water and silicon oil using the simple static headspace method. The experimental design allowed equilibrium achievement within 30 – 60 minutes. Infinite dilution activity coefficients and Henry’s law constants for various organics representing esters, ketones, alkanes, aromatics, cycloalkanes and amine...

The present study examined the biodegradation rate of benzene vapors in a two phase stirred tank bioreactor by a bacterial consortium obtained from wastewater of an oil industry refinery house. Initially, the ability of the microbial consortium for degrading benzene was evaluated before running the bioreactor. The gaseous samples from inlet and outlet of bioreactor were directly injected into a...