A CMOS UWB transmitter for possible use for medical and biological imaging based on radio-wave induced ultrasound

2013 ◽  
Author(s):  
Andrew Nguyen ◽  
Cam Nguyen
Keyword(s):  
Radio Wave ◽  
Biological Imaging ◽  
Medical And Biological Imaging ◽  
Wave Induced

scholarly journals How, precisely, can astronomy be of benefit to anyone?

2009 ◽  
Vol 5 (S260) ◽  
pp. 381-392
Author(s):  
Bernard J. T. Jones
Keyword(s):  
Higher Education ◽  
Developing Countries ◽  
Industrial Process ◽  
Biological Imaging ◽  
Point Of View ◽  
Astronomy Education ◽  
Know How ◽  
Medical And Biological Imaging ◽  
Industrial Process Control ◽  
Observational Science

AbstractAstronomy as an observational science is technology driven both from the point of view of data acquisition and of data processing and visualisation. Astronomy exploits a very wide base of technologies which are developed, enhanced and extended by users. Consequently, astronomy can return new and enhanced technologies to areas well outside of astronomy itself. My own hi-tech company, Astraguard, a video imaging company, is a small but significant example of that technology return. Astronomy can provide both know-how and people for a diverse variety of areas: security, industrial process control, medical and biological imaging, petrochemicals, databases, and the financial industries to name but a few. It is unfortunate that those who teach astronomy are generally not aware of these possibilities.In this lecture I hope to take a first step towards showing what is possible. I hope to convince the reader that astronomy education, at all levels, can play a significant role in career development outside of astronomy and in higher education in developing countries.

scholarly journals Soft X-ray Microscopy Techniques for Medical and Biological Imaging at TwinMic—Elettra

2021 ◽  
Vol 11 (16) ◽  
pp. 7216
Author(s):  
Alessandra Gianoncelli ◽  
Valentina Bonanni ◽  
Gianluca Gariani ◽  
Francesco Guzzi ◽  
Lorella Pascolo ◽  
...  
Keyword(s):  
Life Sciences ◽  
High Sensitivity ◽  
High Impact ◽  
Biological Imaging ◽  
Biological Processes ◽  
Length Scales ◽  
X Ray ◽  
Impact Studies ◽  
Medical And Biological Imaging ◽  
Microscopy Techniques

Progress in nanotechnology calls for material probing techniques of high sensitivity and resolution. Such techniques are also used for high-impact studies of nanoscale materials in medicine and biology. Soft X-ray microscopy has been successfully used for investigating complex biological processes occurring at micrometric and sub-micrometric length scales and is one of the most powerful tools in medicine and the life sciences. Here, we present the capabilities of the TwinMic soft X-ray microscopy end-station at the Elettra synchrotron in the context of medical and biological imaging, while we also describe novel uses and developments.

Observation of Radio-Wave-Induced Red Hydroxyl Emission at Low Altitude in the Ionosphere

2005 ◽  
Vol 94 (9) ◽  
Author(s):  
L. M. Kagan ◽  
M. J. Nicolls ◽  
M. C. Kelley ◽  
H. C. Carlson ◽  
V. V. Belikovich ◽  
...  
Keyword(s):  
Radio Wave ◽  
Hydroxyl Emission ◽  
Low Altitude ◽  
Wave Induced

X-ray Gabor holography

1995 ◽  
Vol 53 ◽  
pp. 612-613
Author(s):  
Steve Lindaas ◽  
Chris Jacobsen ◽  
Alex Kalinovsky ◽  
Malcolm Howells
Keyword(s):  
Surface Relief ◽  
Biological Imaging ◽  
Specimen Preparation ◽  
X Rays ◽  
X Ray ◽  
Water Window ◽  
Biological Objects ◽  
Transmission Imaging ◽  
Atomic Force ◽  
Electron Microscopes

Soft x-ray microscopy offers an approach to transmission imaging of wet, micron-thick biological objects at a resolution superior to that of optical microscopes and with less specimen preparation/manipulation than electron microscopes. Gabor holography has unique characteristics which make it particularly well suited for certain investigations: it requires no prefocussing, it is compatible with flash x-ray sources, and it is able to use the whole footprint of multimode sources. Our method serves to refine this technique in anticipation of the development of suitable flash sources (such as x-ray lasers) and to develop cryo capabilities with which to reduce specimen damage. Our primary emphasis has been on biological imaging so we use x-rays in the water window (between the Oxygen-K and Carbon-K absorption edges) with which we record holograms in vacuum or in air.The hologram is recorded on a high resolution recording medium; our work employs the photoresist poly(methylmethacrylate) (PMMA). Following resist “development” (solvent etching), a surface relief pattern is produced which an atomic force microscope is aptly suited to image.

Complementary Z-Contrast Imaging and Digital Image Processing

1985 ◽  
Vol 43 ◽  
pp. 304-305
Author(s):  
K. N. Colonna ◽  
G. Oliphant
Keyword(s):  
Image Processing ◽  
Heavy Metal ◽  
Digital Image Processing ◽  
Digital Image ◽  
Biological Tissue ◽  
Biological Imaging ◽  
Tissue Preparation ◽  
Contrast Imaging ◽  
Imaging Tool ◽  
Z Contrast

Harmonious use of Z-contrast imaging and digital image processing as an analytical imaging tool was developed and demonstrated in studying the elemental constitution of human and maturing rabbit spermatozoa. Due to its analog origin (Fig. 1), the Z-contrast image offers information unique to the science of biological imaging. Despite the information and distinct advantages it offers, the potential of Z-contrast imaging is extremely limited without the application of techniques of digital image processing. For the first time in biological imaging, this study demonstrates the tremendous potential involved in the complementary use of Z-contrast imaging and digital image processing.Imaging in the Z-contrast mode is powerful for three distinct reasons, the first of which involves tissue preparation. It affords biologists the opportunity to visualize biological tissue without the use of heavy metal fixatives and stains. For years biologists have used heavy metal components to compensate for the limited electron scattering properties of biological tissue.

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