نتایج جستجو برای: ultrasound assisted oxidative desulfurization uaod

تعداد نتایج: 363617  

2017

The manuscript is an update to the earlier Science of Synthesis contribution describing methods for the synthesis and new applications of thiocarbonyl S-oxides (sulfines) and thiocarbonyl S-imides. In general, thiocarbonyl S-oxides are more stable and in many instances they can be isolated in substance. The in situ generated thiocarbonyl S-imides are efficient ‘sulfur transferring agents’ via t...

Journal: :Plastic and reconstructive surgery 2003
Rod J Rohrich Richard Y Ha Jeffrey M Kenkel William P Adams

Gynecomastia, or excessive male breast development, has an incidence of 32 to 65 percent in the male population. This condition has important physical and psychological impacts. Advances in elucidating the pathophysiology of gynecomastia have been made, though understanding remains limited. Recommendations for evaluation and workup have varied and are often arbitrary. A diagnostic algorithm is ...

Journal: :Processes 2022

The preparation of flavored vegetable oils using spice and herb plants is considered to be an indispensable opportunity for the application these plants. In present exploration, sunflower oil (SFO) samples by Mentha spicata L. (spearmint) were prepared maceration method (MM) ultrasound-assisted (UM). antioxidant effects, sensory evaluation oxidative stability during accelerated storage; physico...

Journal: :Nucleic acids research 1994
T. K. Wyrzykiewicz D. L. Cole

We described a solid-supported desulfurization procedure allowing easy access to the sequence analysis of oligonucleotide phosphorothioates. The described method is based upon selective removal of the 2-cyanoethyl phosphate protecting groups, followed by iodine-promoted desulfurization of the resulting phosphorothioate diesters. Automatic oxidation of oligonucleotide phosphorothioates, anchored...

2016
Yousef Tavakolpour Marzieh Moosavi‐Nasab Mehrdad Niakousari Soroush Haghighi‐Manesh

The essential oil (EO) from dried ground powder leaves and stems of Thymua danesis was extracted using hydrodistillation (HD), ohmic extraction (OE), ultrasound-assisted HD and ultrasound-assisted OE methods. Then, the antioxidant, antimicrobial, and sensory properties of the EO were investigated both in vitro and in food systems. Thyme EO extracted by ultrasound-assisted HD method had promisin...

2015
Bart H. A. Lammertink Clemens Bos Roel Deckers Gert Storm Chrit T. W. Moonen Jean-Michel Escoffre

The combination of microbubbles and ultrasound has emerged as a promising method for local drug delivery. Microbubbles can be locally activated by a targeted ultrasound beam, which can result in several bio-effects. For drug delivery, microbubble-assisted ultrasound is used to increase vascular- and plasma membrane permeability for facilitating drug extravasation and the cellular uptake of drug...

2013
Zhengbin He Fei Yang Yiqing Peng Songlin Yi

Ultrasonic energy was applied to assist the wood vacuum drying process. At a drying temperature of 60°C, the absolute pressure was either 0.05 MPa or 0.08 MPa; the ultrasonic power and frequency were 100 W and 28 kHz, respectively. The results showed that the effective water diffusivity of the specimens dried by the ultrasonic assisted vacuum drying at 0.05 MPa or 0.08 MPa were higher than that...

2016
Zijian Zhao Qing Ma Zhengbin He Songlin Yi

Impregnating wood, assisted with ultrasound technology, could improve the impregnation efficiency by improving the permeability of wood, thus affecting the subsequent drying process. Poplar lumber and phenolic resin were applied to investigate the influence of ultrasound-assisted impregnation on the wood drying process. The ultrasonic frequency and processing time were analyzed and correlated. ...

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