نتایج جستجو برای: microbeam

تعداد نتایج: 1126  

2018
Jingjing Feng Cheng Liu Wei Zhang Shuying Hao

The micro-electro-mechanical system (MEMS) resonator developed based on surface processing technology usually changes the section shape either due to excessive etching or insufficient etching. In this paper, a section parameter is proposed to describe the microbeam changes in the upper and lower sections. The effect of section change on the mechanical properties is studied analytically and veri...

Journal: :Analytical chemistry 2009
Erdmann Rapp Ales Charvát Alexander Beinsen Uwe Plessmann Udo Reichl Andreas Seidel-Morgenstern Henning Urlaub Bernd Abel

A new atmospheric pressure (AP)-MALDI-type interface has been developed based on a free liquid (FL) microbeam/microdroplets and a mid-infrared optical parametric oscillator (mid-IR OPO). The device is integrated into a standard on-line nanoESI interface. The generation of molecular ions in the gas phase is believed to be the result of a fast (explosive) laser-induced evaporative dispersion(not ...

Journal: :Polymer 2022

Surface properties of monofilaments can be tailored with radial structural gradients, which is specific interest for technical textile applications. Radial gradients in fine (≤ 40 μm thick) poly(ethylene terephthalate) have been studied high-resolution Raman mapping and one-dimensional microbeam small-angle x-ray scattering tomography. Filaments melt-spun by using online offline drawing techniq...

Journal: :Review of Scientific Instruments 2008

Journal: :Journal of the Spectroscopical Society of Japan 1995

2015
Guido A Drexler Christian Siebenwirth Sophie E Drexler Stefanie Girst Christoph Greubel Günther Dollinger Anna A Friedl

Ion microbeams are important tools in radiobiological research. Still, the worldwide number of ion microbeam facilities where biological experiments can be performed is limited. Even fewer facilities combine ion microirradiation with live-cell imaging to allow microscopic observation of cellular response reactions starting very fast after irradiation and continuing for many hours. At SNAKE, the...

2017
Mihaela Ghita Stephen J. McMahon Laura E. Taggart Karl T. Butterworth Giuseppe Schettino Kevin M. Prise

Gold nanoparticles (GNPs) have been demonstrated as effective radiosensitizing agents in a range of preclinical models using broad field sources of various energies. This study aimed to distinguish between these mechanisms by applying subcellular targeting using a soft X-ray microbeam in combination with GNPs. DNA damage and repair kinetics were determined following nuclear and cytoplasmic irra...

Journal: :Uchu Seibutsu Kagaku 2004
Yasuhiko Kobayashi Tomoo Funayama Seiichi Wada Yoshiya Furusawa Mizuho Aoki Chunlin Shao Yuichiro Yokota Tetsuya Sakashita Yoshitaka Matsumoto Takehiko Kakizaki Nobuyuki Hamada

We have established a single cell irradiation system, which allows selected cells to be individually hit with defined number of heavy charged particles, using a collimated heavy-ion microbeam apparatus at JAERI-Takasaki. This system has been developed to study radiobiological processes in hit cells and bystander cells exposed to low dose and low dose-rate high-LET radiations, in ways that canno...

2005
KIMBERLEY HUGHES ARTHUR FORER PAULA WILSON CYNTHIA LEGGIADRO

Marginal bands were isolated from newt red blood cells and, using monochromatic light from an ultraviolet microbeam, the marginal band microtubules were irradiated in vitro to produce areas of reduced birefringence (ARBs). The ARBs neither moved nor changed shape after they were formed, though the marginal bands sometimes changed shape during the irradiation. Marginal band ARBs 'were regions in...

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