Abstract : Recently, we have many research works on the neural networks and their related issues, even for network communications and information exchange. For exchangeability of neural network frameworks, the Neural Network Exchange Format (NNEF) specification is now widely used. Due to very large size of these neural networks, their accelerations are actively explored, and can be achieved through massively parallel processing techniques. In this paper, we present a prototype implementation of C++ code generator with parallel-processing accelerations with CUDA and underlying GPUs, for the NNEF specification files. We show the feasibility and also technical issues including C++ template uses with CUDA kernels.. Full article
Abstract : In the extrusion industry, the die design process is often a trial-and-error process that involves a number of failures before reaching the required specific profile. Analysis of die failure is an important aspect of predicting the failure rate and enhancing the durability of Aluminum extrusion dies. The present study focused on the Aluminum extrusion process using semi-hollow dies of hot-work H13 steel with different shapes and sizes to determine their defect rate and percentage of failure. The extrusion speed, pressure, and friction temperatures are three major parameters in Aluminum extrusion profile defects and also in die failures. Based on the data collected from the aluminum extrusion process, analysis has revealed that Extrusion die failure can significantly impact production, product quality, and costs. Understanding the causes and effects and implementing preventive measures are essential for minimizing die failures, optimizing the production process, and ensuring consistent quality output in the extrusion industry.. Full article
Abstract : Powder coating is an electrostatic spray deposition process that involves the spraying of finely ground, electrostatically charged, pre-prepared powder onto the aluminium profiles in order to improve the aesthetic value and impart corrosion resistance. This study is focused on the impact of aluminium profiles sagging during powder coating for the IWIN-S profiles, which have a weight of less than 1 kg weight per metre in the industry. In order to provide continuous support at either end of the profiles Jig rods with two distinct needle orientations are developed to minimise the effects of sagging and ensure consistent coating across the profiles. The design has been validated using the Ansys Workbench software. Implementing new jig rods in the powder coating process prevents profiles from sagging and reduces the amount of LPG and electricity required to coat the profiles. It also reduces the amount of time required to coat each profile. The re-working of pieces with lesser coating thickness and inadequate powder coverage has been significantly decreased, with a productivity improvement of 60–85% per shift.. Full article
Abstract : The in vitro regeneration system of rice plants is known to be very well established compared to other plants. However, several rice genotypes are still recalcitrant for regeneration and genetic transformation, including the local rice cultivar Mentik Susu. Therefore, improving and optimizing tissue culture system protocols for regenerating fertile plants is a prerequisite for the application of genome editing. The purpose of this study was to evaluate the concentration of hygromycin and its effect on regeneration response, and introduce the CRISPR/Cas9 cassette construct that carries gRNA from the OsCKX2 gene into the rice cv. Mentik susu through A. tumefaciens-mediated transformation. The immature embryo of rice cv. Mentik susu is used for regeneration and transformation study. Analysis of the sensitivity level of explants derived from immature embryos of rice cv. Mentik susu was conducted at different hygromycin concentrations added in the callus induction medium, i.e. 0, 10, 15, 20, 25, and 30 mg L-1 as treatments. The A. tumefaciens vector strain LBA4404 harboring a CRISPR/Cas9_gRNA/OsCKX2 plasmid was used in for genetic transformation of rice cv. Mentik susu. The results showed that the hygromycin concentration of 10 mg L-1 was the suitable concentration that could be used for callus selection during the transformation using A. tumefaciens. Regeneration study of callus of rice Mentik Susu revealed that callus regeneration without adding of hygromycin in the medium produced 93 plants (81%), whereas the regeneration with hygromycin addition produced 2 plants (8.7%). Molecular detection presence of the OsCKX2 gene target construct obtained 23 putative Mentik Susu rice lines positive for the hptII gene and the Cas9 gene produced 9 lines. Further analysis of the transgenic plants are required to identify the occurrence of mutagenesis which is induced by CRISPR/cas9 system.. Full article