نتایج جستجو برای: ultrasound assisted

تعداد نتایج: 235137  

2005

We present daVinci Canvas: a telerobotic surgical system with integrated robot-assisted laparoscopic ultrasound capability. DaVinci Canvas consists of the integration of a rigid laparoscopic ultrasound probe with the daVinci robot, video tracking of ultrasound probe motions, endoscope and ultrasound calibration and registration, autonomous robot motions, and the display of registered 2D and 3D ...

Journal: :Molecules 2017
Jianfeng Yu Qi Lou Xiangyang Zheng Zhengwei Cui Jian Fu

Microwave-assisted and ultrasound-assisted extraction assays were used to isolate total flavonoids (TF) from Osmanthus fragrans flowers. The effects of the solid-liquid ratio, ethanol concentration, microwave power, microwave extraction time, ultrasonic power and ultrasonic extraction time on the yield of TF were studied. A sequential combination of microwave- and ultrasound-assisted extraction...

Journal: :Molecules 2012
Xinsheng Wang Qinan Wu Yanfang Wu Guangyun Chen Wei Yue Qiaoli Liang

An efficient ultrasound-assisted extraction technique was employed to extract total flavonoids from Sparganii rhizoma. The optimum extraction conditions for the highest yield of total flavonoids were ethanol concentration 53.62%, ultrasonication time 29.41 min and ultrasound power 300 W, which were determined using response surface methodology. The extraction yields of the optimal ultrasound-as...

2013
Tang-Bin Zou Qing Jia Hua-Wen Li Chang-Xiu Wang Hong-Fu Wu

Astaxanthin is a novel carotenoid nutraceutical occurring in many crustaceans and red yeasts. It has exhibited various biological activities including prevention or amelioration of cardiovascular disease, gastric ulcer, hypertension, and diabetic nephropathy. In this study, ultrasound-assisted extraction was developed for the effective extraction of astaxanthin from Haematococcus pluvialis. Som...

Journal: :JOURNAL OF EDUCATION AND SCIENCE 2013

Journal: :Continuing Education in Anaesthesia Critical Care & Pain 2011

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