نتایج جستجو برای: ultrasonic assisted face turning

تعداد نتایج: 340846  

Journal: :IOP Conference Series: Materials Science and Engineering 2018

2013
Keon Woo Kwon Hyoungjun Park Junsang Doh

T cells navigate complex microenvironments to initiate and modulate antigen-specific immune responses. While recent intravital microscopy study revealed that migration of T cells were guided by various tissue microstructures containing unique nanoscale topographical structures, the effects of complex nanotopographical structures on the migration of T cells have not been systematically studied. ...

Journal: :Journal of Japan Society for Fuzzy Theory and Intelligent Informatics 2014

Since solid-phase and liquid-phase microextraction (SPME and LPME) were introduced, as effective solvent-free methods, many efforts have been made to improve their modes and applications. However, due to limitations with sensitivity and efficiency, researchers have focused on improving the performance of their basic primary modes. In this way, in recent years, different methods such as ultrason...

Journal: :Journal of chromatography. A 2011
Chung-Hung Chan Rozita Yusoff Gek-Cheng Ngoh Fabian Wai-Lee Kung

Microwave-assisted extraction (MAE) is widely employed in the analysis and the extraction of active compounds from plants. This review summarizes the research done during the last decade on the MAE of active ingredients from plants. Advances and modifications to improve the performance of MAE are presented and discussed in detail. Modified MAE such as vacuum microwave-assisted extraction (VMAE)...

Journal: :journal of nanostructures 2015
g. nabiyouni d. ghanbari j. ghasemi a. yousofnejad

in this work firstly mgfe2o4 nanoparticles were synthesized via a microwave-assisted method. the product was calcinated at 900 ºc for 2h. at the second step zinc oxide shell was synthesized on the ferrite under ultrasonic waves. properties of the product were examined by x-ray diffraction pattern (xrd), scanning electron microscope (sem) and fourier transform infrared (ft-ir) spectroscopy. vibr...

2018
Yuchuan Chen Hang Gao Xu Wang Dongming Guo Ziyuan Liu

Laser induced damage threshold (LIDT) is an important optical indicator for nonlinear Potassium Dihydrogen Phosphate (KDP) crystal used in high power laser systems. In this study, KDP optical crystals are initially machined with single point diamond turning (SPDT), followed by water dissolution ultra-precision polishing (WDUP) and then tested with 355 nm nanosecond pulsed-lasers. Power spectral...

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