Towards a Framework for Testing Structural Source-Code Regularities

As size and complexity of software systems increase, preserving the design and specification of their implementation structure gains importance in order to maintain the evolvability of the system. However, due to constant changes, the implementation structure and its documentation tend to dilute over time. Building on the underlying models of intensional views and intensional relations, our IntensiVE tool-suite helps a developer in documenting structural source-code regularities, verifying them and offering fine-grained feedback when the code does not satisfy those regularities

Sensitivity between oxygen and EPR signal dealing with carbon black used as biosensor

In order to identify potential candidates as sensors for in vivo EPR oximetry, we carried out a systematic study among commercially available carbon black. A total of 43 carbon blacks were tested. Only two carbon blacks presented a stable, reproducible, and sensitive response to pO(2) for more than 2 months. Therefore, these two carbon blacks should be considered as good candidates to be used as oxygen sensor using in vivo EPR spectroscopy

Chemical and electrochemical synthesis of polypyrrole nanotubules

Polypyrrole (PPy) has been chemically and electrochemically synthesized inside the pens of home-made nanoporous polycarbonate (PC) Particle Track-etched Membranes (nano-PTM). The morphologies of the obtained PPy nanostructures have been carefully studied using a Field-Effect Scanning Electron Microscope (FE-SEM). By chemical synthesis, perfectly cylindrical 15 nm diameter PPy tubules have been successfully prepared

Intrachain and Interchain Thermal Conduction in Polymers

It is shown here that oriented polymers are good candidates to get a better understanding of the thermal conductivity in semi-crystalline polymers. By measuring the thermal conductivity parallel and perpendicular to the polymer chains as a function of temperature, the thermal-transfer mechanisms along and across the chains could be identified. The mechanisms leading to the thermal-conductivity increase upon stretching will be discussed

Effects of LiDAR data reduction and breaklines on the accuracy of digital elevation model

This paper explores the effects of LiDAR data reduction on the accuracies of produced TINs and gridded DEMs. It examined to what extent a set of LiDAR (light detection and ranging) data can be reduced without sacrificing the accuracy of produced terrain model. A primary focus was on the integration of breaklines to the reduction process to assess the contribution of breaklines to improving the accuracy of terrain models in data reduction. A series of TINs and gridded DEMs were produced and assessed at reduced data density levels with and without breaklines respectively. The results showed that LiDAR data can be reduced to a certain level without significantly decreasing the accuracy of produced terrain models. When incorporating breaklines into terrain modelling, the accuracy of produced TINs and gridded DEMs decreased only slightly as data density decreased, indicating that breaklines made a significant contribution to improving the accuracy of terrain models in data reduction