Wen Long Yue

This paper proposes a Ku-band cavity antenna for integrated packaging. The whole structure uses glass with micro-grooves as the substrate, and SOG and Parylene-N film on the upper part forms a cavity structure. The antenna pattern is fabricated on top of the film. The ground plane is on the bottom of a glass substrate. The optimized antenna has a thinner thickness and higher radiation performance. The antenna has a maximum gain of 9.6 dBi and an impedance bandwidth of 0.17 GHz. An all-glass antenna is designed for a comparative study, and it is found that the maximum gain of the design in this paper can be increased by 39%.

As an important tool to study the microstructure and properties of materials, High Resolution Transmission Electron Microscope (HRTEM) images can obtain the lattice fringe image (reflecting the crystal plane spacing information), structure image and individual atom image (which reflects the configuration of atoms or atomic groups in crystal structure). Despite the rapid development of HTTEM devices, HRTEM images still have limited achievable resolution for human visual system. With the rapid development of deep learning technology in recent years, researchers are actively exploring the Super-resolution (SR) model based on deep learning, and the model has reached the current best level in various SR benchmarks. Using SR to reconstruct high-resolution HRTEM image is helpful to the material science research. However, there is one core issue that has not been resolved: most of these super-resolution methods require the training data to exist in pairs. In actual scenarios, especially for HRTEM images, there are no corresponding HR images. To reconstruct high quality HRTEM image, a novel Super-Resolution architecture for HRTEM images is proposed in this paper. Borrowing the idea from Dual Regression Networks (DRN), we introduce an additional dual regression structure to ESRGAN, by training the model with unpaired HRTEM images and paired nature images. Results of extensive benchmark experiments demonstrate that the proposed method achieves better performance than the most resent SISR methods with both quantitative and visual results.

Disadvantages of normal boundary conditions and advantages of the combination coefficient method of the adjacent point are analysed. Recursion formulas and algorithms for inverse of the cubic uniform B-spline with different boundary conditions are presented. The algorithms are simple, fast and satisfied with upper designers' demands.

The cubic B-Spline curves have many engineering applications, such as graphic matching, materials cutting and layout arrangement. The existing mathematical representations, usually defined as polynomial function, its coefficient matrix of non-uniform B-Spline curves are complicated, difficult to understand, and require sophisticated algorithm in programming implementation. This paper aims at presenting a procedure based on the de Boor-Cox recursion formula, the coefficient matrixes of non-uniform B-Spline curves could be deducted. The application of this approach has been successfully used in shoe manufacturing process for material cutting control system.

Railway level crossing accident is one of the major contributing factors of railway related fatalities in many countries. Even though railway level...

In the past decades, modelling techniques have become a valuable decision support tool and been applied widely in transportation planning. The main principles of transport modelling are based on static and dynamic modelling principles at macroscopic and microscopic levels. They have complementary characteristics. However, little work has been directed to conduct detailed analysis, comparison or integration for different models. The gap brings out the motive of the study. The main aims of this study are to analyse and compare the characters for both static and dynamic modellings and assemble the advantages from them for the further development, improvement and researches.

Local Area Traffic Management (LATM) has been used for dealing with safety problem on residential streets for many years. With the question raised by some researchers for how many benefits could be brought from these LATM schemes, this paper depicts the impacts of the LATM schemes on the safety based on accident rates resulting from two case studies in metropolitan Adelaide, South Australia. A comparison of the evaluations of safety benefits between the two schemes is conducted. The analysis results showed that the effect of the schemes is limited in the road networks regarding to safety, especially in the external network, however they did bring benefits of reducing speed. The scheme, which is area-wide is more likely to bring safety benefits to the area, and influencing the internal network traffic operation.