COSMOL

Free software, it can be useful.


Modelling

Flow Modelling Simulation

Computer simulation of flow and heat transfer improves customers’ profitability through improved designs, better quality products, higher production rates and shorter lead times. It provides cost effective solutions, reducing the need for prototypes and experiments enabling ‘right first time’ designs based on increased understanding of products and processes

http://www.acel.co.uk/CFD_consulting.html

surf  COSMOL web and you will find good software applications and services.
:-)

Marriage Vs PhD

This is terrible, after finishing the house duties and working in simulation for a change in my insignificant life as PhD student. So, I have found myself identified with this,

and the next one is dedicated to my supervisor



 

Characterisation of an LED-Based Micro-Optical Encoder

Author(s):
Luis Acevedo - Heriot-Watt University
Prof. Marc Desmulliez - Heriot-Watt University
Dr. John Carr - Renishaw plc

Industry:
Electronics, Research, Semiconductor

Products:
PCI-7340, UMI-7772/74 To AKD Drive Cable, LabVIEW

The Challenge:
Building a 2D scanning system to study the light emitted by micro-optoelectromechanical systems (MOEMS) for optical encoders, which are devices that take high-precision distance and position measurements.

The Solution:
Using NI motion hardware and NI LabVIEW software to perform 2D scanning above the surface of the encoder and to collect the light emitted by the LED to assess the profile of the beam as it travels through various optical elements, and then compare it with an optical software simulation package.

Figure 1.  Profiling Incoherent Light

Author Information:
Luis Acevedo
Heriot-Watt University

Plane waves - Edge effects

Lumerical solves diffraction orders for nano materials using FDTD. This tool is more powerful than the conventional raytracing software as BRO (ASAP or APEX), Zemax, CODE V, Photon Engineering and so on.

I believe that RSOFT in BPM can male the job.

Lumerical has a supreme support, tutorials and training courses across the world.

Objective

This section describes how the plane wave source can be affected by PML boundary conditions.  A similar problem occurs when a source does not span the entire simulation width.

Employing the industry-proven finite-difference time-domain (FDTD) algorithm, FDTD Solutions empowers device and components designers to confront challenging optical propagation design problems. Rapid prototyping and reduced reliance upon experimental validation leads to drastically reduced product development costs and time-to-market.

       Testimonial

"FDTD Solutions ... dramatically outperforms the rival software in terms of speed, the transparent user environment, the analysis tools, and the support. ... It is the complete package: an elegant interface, a powerful scripting language which has essentially replaced matlab for my data processing, an accurate treatment of metals and loss, an invaluable database of example simulations and scripts, and same-day support from physicists with a deep understanding of my research questions.
M. McCutcheon, Harvard University

Micro and nano systems Laboratory

Tel Aviv is one of the pioneers in designing and EEG MEMs for Neurology diagnostics. Below you can read one of their applications.

Biophysics of Neurons

Neuronal biophysics concerns with many different properties. One of the most conspicuous is their mechanics. Mechanical properties appear to profoundly affect neuronal morphology, wiring, function, and motility. Using large locust cultures we are trying to explore these various effects.

     Axonal mechanics demonstrated

Sarit Anava, Alon Greenbaum, Eshel Ben Jacob, Yael Hanein and Amir Ayali

The regulative role of neurite mechanical tension in network development,

Biophysical Journal, Vol.96, pp. 16611670, 2009.

     Neuronal shape is correlated with motility but also with tension

          Neuronal adhesion to rough surfaces

Raya Sorkin, Alon Greenbaum, Moshe David-Pur, Sarit Anava, Amir Ayali, Eshel Ben-Jacob, andYael Hanein, Process entanglement as a neuronal adhesion mechanism, Nanotechnology, Vol. 20, pp. 015101, 2009.

If you are interested contact

Yael Hanein, Ph.D.

         http://www.eng.tau.ac.il/~hanein/

Optical modelling points the way to PDT progress

Good Paper in modelling
Cheers

Computer Graphics: Three-Dimensional Graphics and Realism — Ray Tracing, Global  

           Illumination,    Beam Tracing, Geometric Anti-Aliasing.

                                     

              Alexander Reshetov Alexei Soupikov Jim Hurley Intel Corporation

               e-mail: {Alexander.Reshetov, Alexei.Soupikov, Jim.Hurley}@intel.com