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A 100-Fold Improvement in Lithography Resolution Realized with a 150-Year-Old “Perfect Imaging” System

Juan Carlos Miñano and Dejan Grabovičkić
Cedint Polytechnic University of Madrid
Spain

The idea of "perfect imaging", that is a resolution less than the wavelength of light producing the image, was first proposed in the mid-19th century by famed Scottish physicist James Clerk Maxwell. For the next 150 years, it was widely believed that such was impossible due to the fact that light diffracts around points that are the same size or smaller in wavelength. Then, in 2009, Ulf ...

Reduced-Weight Reaction Sphere Makes Way for Extra Satellite Payload

Leopoldo Rossini, Emmanuel Onillon, & Olivier Chetelat

CSEM SA, Neuchatel, Switzerland

CSEM is a private applied research and development center specializing in micro-technology, system engineering, micro-electronics, and communications technologies. One of their latest projects is working on minimizing the weight of satellite attitude control systems as every gram of payload matters when launching a satellite into orbit (€15,000 per kilogram). CSEM hopes to accomplish this task ...

MRI Tumor-Tracked Cancer Treatment

Gino Fallone and colleagues
Cross Cancer Institute
Edmonton, AB, Canada

Radiation therapy targeting in cancer treatment involves many uncertainties, including the movement of targeted sites due to breathing and the like. Magnetic resonance imaging (MRI) can accurately identify the location of a tumor in soft tissue, but unfortunately its magnetic field can interfere with radiation treatment delivered by a linear particle accelerator (Linac). A team of researchers at ...

Simulation of Magnetic Flux Leakage Inspection

Oliver Nemitz
Salzgitter Mannesmann Forschung, Duisburg, Germany

Salzgitter Mannesmann Forschung (SZMF) advances testing methods for the Salzgitter Group, a leading company that works with the manufacture of, among other things, pipes. In the manufacturing of heavy steel tubing, it is important maintain quality, which is done through conduct non-destructive testing (NDT) using large magnets to identify flaws (magnetic flux leakage inspection). Oliver Nemitz ...

Switching Made Easy

Matthias Richwin,
Leopold Kostal GmbH,
Dortmund, Germany

Modern cars offer a wide range of complex functionality that comes with several design challenges. This story discusses some of the necessary updates to a roof module in a premium car and the charging system of an electric car. The roof module of a particular model houses several components. 90% of the generated heat goes into its printed circuit board (PCB), so temperature control is vital for ...

Dielectric Stress Simulation Advances Design of ABB Smart Grid-Ready Tap Changers

Tommi Paananen, David Geibel, Bill Teising, Mårten Almkvist, Jon Brasher, Josh Elder, Bob Elick and Chris Whitten
ABB Alamo
Tennessee

Consumers of power rely on fairly stable voltages. Transformers contain tap changers which vary the ratio of secondary to primary turns by switching the point at which either the input or output circuits are connected. Changing this ratio enables stepped voltage regulation of the output. As the world moves toward the modernized smart grid, the tap changer’s design must be altered to make it ...

Submarines: Corrosion Protection or Enemy Detection?

David Schaefer
University of Duisburg-Essen, Duisburg, Germany

Germany's Technical Center for Ships and Naval Weapons, Bundeswehr, Germany

Submarines create underwater electric potential (UEP) signatures when using corrosion protection systems. These signatures are detectable by enemy vessels, an undesirable effect of the corrosion protection. Germany’s Technical Center for Ships and Naval Weapons (WTD 71) has worked with the Laboratory for General and Theoretical Electrical Engineering (ATE) at the University of Duisburg-Essen ...

Modeling of Laminar Flow Static Mixers

Nagi Elabbasi, Xiaohu Liu, & Stuart Brown
Veryst Engineering LLC, Needham, MA, USA

Mike Vidal & Matthew Pappalardo
Nordson EFD, East Providence, RI, USA

Veryst Engineering, a company that provides consulting in engineering design and product manufacturing, has collaborated with Nordson EFD, one of the leading manufacturers of precision dispensing systems, to optimize their static mixers. Static mixers are inexpensive and efficient mechanisms for mixing laminar viscous fluids, where molecular diffusion is minimal. Here, the fluids must be ...

Optimized Heating Process with Uniform Coating

Mika Judin
Rautaruukki Oyj
Hämeenlinna, Finland

Rautaruukki Oyj supplies metal-based components and systems to the construction and mechanical engineering industries, where process engineer, Mika Judin, works with optimizing their coating technologies. When coating rolled metal with paint, it is important that the coating be applied such that it is not discolored or damaged, and that it is applied evenly. Heat transfer therefore needs to be ...

Understanding the Origin of Uncertainty in Thermometer Calibration

Jonathan Pearce
National Physical Laboratory
UK

Thermometers have widespread application and like any measurement device, they must be calibrated. Many do this with the International Temperature Scale of 1990 (ITS-90), which is a platinum resistance thermometer that calibrates using a fixed point cell, which is a container with a well running through its center for insertion of the thermometer. The container has a material of 99.9999% purity. ...

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