Past Issues

Welcome to IJLERA! International Journal of Latest Engineering Research and Applications

Volume 07 - Issue 02 (February 2022)


Title:
Object Depth Estimation Network using Hard Parameter Sharing and Attention Module
Authors:
Jiwon Seo, Euiyoung Cha
Source:
International Journal of Latest Engineering Research and Applications, pp 01 - 05, Vol 07 - No. 02, 2022
Abstract:
Because of improvement of deep learning techniques, deep learning using computer vision has also been used widely at many fields including classification, detection and segmentation. Especially, various computer vision systems are applied in the field of automatic driving. In this study, we constructed CNN network that predicts the depth of detected pedestrian and vehicle. The network is designed as encoder-decoder with skip connection manner. Based on YOLOv3 and CBAM, encoder detects objects. Decoder predicts multiple scales of disparity map and calculate depth values. Depth is predicted with monocular image. Entire network is trained using self-supervised learning method.
Keywords:
Monocular depth estimation, Object detection, Attention, Hard parameter sharing, Self-supervised learning
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Title:
Rethinking Robustness in Machine Learning: Use of Generative Adversarial Networks for Enhanced Robustness
Authors:
Ayse Arslan
Source:
International Journal of Latest Engineering Research and Applications, pp 06 - 12, Vol 07 - No. 02, 2022
Abstract:
Machine learning (ML) is increasingly being used in real-world applications, so understanding the uncertainty and robustness of a model is necessary to ensure performance in practice. This paper explores approximations for robustness which can meaningfully explain the behavior of any black box model. Starting with a discussion on components of a robust model this paper offers some techniques based on the Generative Adversarial Network (GAN) approach to improve the robustness of a model. The study concludes that a clear understanding of robust models for ML allows to improve information for practitioners, and helps to develop tools that assess the robustness of ML. Also, ML tools and libraries could benefit from a clear understanding on how information should be presented and how these tools are used.
Keywords:
ML, AI, robustness, safety, algorithm, software engineering, explainability interpretability
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Title:
Synthesis and Characterization of Magnetic Iron Oxide Nanoparticles (IONPs)
Authors:
Halah Taher M Arishi
Source:
International Journal of Latest Engineering Research and Applications, pp 13 - 19, Vol 07 - No. 02, 2022
Abstract:
The nanoparticles have physical and synthetic properties which are based on the combination cycle and the singular parts that make up the particles. One likewise understands that the amalgamation interaction utilized fundamentally affects the qualities of the nanoparticles. Various techniques for union utilize distinctive IONP's improvement processes, which places extraordinary limitations on the nanoparticles. There are two primary classes of iron oxide nanoparticles, to be specific magnetite and maghemite which is the oxidized type of magnetites. Note that attractive iron oxides are dangerous and ought to be taken care of with outrageous consideration. This is significant on the grounds that attractive iron oxides are created under specific rigid conditions that serve to improve the harmfulness of these substances. Nonetheless, considers in-vitro preparation have served to demonstrate that whenever utilized the right way, attractive iron oxides negligibly affect the clients. As indicated by the review, attractive iron oxide ought to be dealt with successfully to guarantee that not presented to any substances may deliver it harmful and serve to make it hazardous to the last client who uses items produced using these parts.
Keywords:
Nanotechnology. Supramolecular. Bioseparation. Bulk. Co-precipitation.
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Title:
Polymer Nanocomposites: Synthesis and Characterization
Authors:
Ayisha Ali M Arishi
Source:
International Journal of Latest Engineering Research and Applications, pp 20 - 25, Vol 07 - No. 02, 2022
Abstract:
The properties of polymer nanocomposites take after their microstructures, which are significantly impacted by control of nanoparticle scattering to achieve the ideal properties of the materials. By coordinating the nano-polymers, the attributes of the singular polymers, like warm, optical, mechanical and gas properties, are effectively upgraded. Polymer nanocomposite materials of are utilized in the support of underlying parts as a result of their high solidarity to length proportion and high opposition. Due to their primary properties, they are additionally significant in clinical applications utilized for the support of biodegradable polymeric nanocomposites during the time spent bone tissue re-designing. The level of crystallinity, just as the pace of crystallization, can without much of a stretch be impacted. Utilizing determined conditions, spherulitic development is controlled in the restricted space with the goal that the principal cores are missing from the heterogeneous crystallization, including homogeneous nucleation prompting the side-effects. Also, the carbon nanotube has mechanical, warm, and electrical properties, makes it appropriate for use in the development of support materials. The advancement of multifunctional polymer nanocomposites of the primary properties make them considerably more grounded than steel yet lighter than aluminum, and they have electrical conductivity more noteworthy than copper.
Keywords:
Nanocomposites.Nanotechnology. Reinforcement. Polymer.Carbon nanotubes.
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Title:
The heritage of Robert Maillart: innovation and optimization of the bridge structures
Authors:
Mauricio Díaz Valdés
Source:
International Journal of Latest Engineering Research and Applications, pp 26 - 31, Vol 07 - No. 02, 2022
Abstract:
The swiss engineer Robert Maillart (1872-1940) was commissioned to build some of the best bridges of the twentieth century in Switzerland. He was the forerunner of using reinforced concrete especially in the design of thin arch structures as well as the introduction of new geometric shapes to the structure made it go down in history as one of the most important figures in the history of the construction of the 20th century. Each of their designs innovatively and elegantly solves one of the basic engineering problems: support large amounts of weight through the arch. The history of construction through time has always sought to generate new proposals that adapt to the needs of each century and without a doubt Robert Maillart was in charge of revolutionizing the design process of concrete bridges and was one of the pioneers of the structures of the twentieth century; even today his legacy remains latent. This paper presents the results of Maillart´s obtained through his designs of the structural calculations and how his technological and material innovations are very important and currently used. It will be explained concisely the design of Salginatobel (1929) bridge, which is one of Robert Maillart's key works. Through the analysis of the Salginatobel bridge we can observe the three Maillart methods: the proper use of parabolas, the distribution of loads on the bridge and the correct application of geometry for structural efficiency. These methods are the key part of Maillart's works to mix geometry and structural design to have a result referring to structural optimization.
Keywords:
Structural Design, Design Methods, Salginatobel Bridge, Construction Process, Geometry
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Title:
Orbit-Counting theorem in NG Groups not Subset of S3
Authors:
Faraj.A.Abdunabi, Ahmed shletiet, EmanSaad sati
Source:
International Journal of Latest Engineering Research and Applications, pp 32 - 36, Vol 07 - No. 02, 2022
Abstract:
In this paper, we rewrite orbit-counting theorem in NG-groups. Some other authors called it Burnside's counting theorem, the Cauchy Frobenius lemma. It is a result in group theory which is often useful in taking account of symmetry when counting mathematical objects.)
Keywords:
Finite groups, Symmetric groups, fixed points.
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Title:
Experimental Investigation on Hybrid Fibre Reinforced Concrete by Partial Replacement of M-Sand with Fine Aggregate
Authors:
N. Nageswari, Dr. R. Divahar
Source:
International Journal of Latest Engineering Research and Applications, pp 37 - 43, Vol 07 - No. 02, 2022
Abstract:
Over many years, there has been a huge expansion in the utilization of fibre in concrete for further developing its properties like elasticity and pliability. The fibre concrete is utilized in retrofitting existing substantial constructions. Among numerous kinds of strands accessible today, glass fibre is a new presentation in field of substantial innovation. Hybrid fibre in suitable combination may potential improve the overall properties and performance of concrete. Jute and glass fibre is used as a hybrid fibre. M-sand is delivered from hard granite stone by smashing. Fine aggregate is replaced by M-sand as 10%, 15% and 20%. For this study M25 grade concrete is used. Fibres are used in different proportion such as 0.2%, 0.4%, 0.6% and 0.8% respectively. In this study experiment were led in investigation the impact of Jute and Glass Fibre in various extent in solidified cement. Compressive strength, split rigidity and flexural strength test for 7, 14 and 28 days were tested.
Keywords:
Jute and glass fiber, M-sand, compressive strength, split tensile strength, flexural strength.
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