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Keywords = luggage bag

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19 pages, 8806 KiB  
Article
Research Driven by User Demand for the Design of a Cross-Border Travel Credential Bag
by Shuyun Li, Xizhi Zhang, Kuohsun Wen and Jiawei Jiang
Sustainability 2024, 16(21), 9547; https://doi.org/10.3390/su16219547 - 1 Nov 2024
Cited by 1 | Viewed by 1331
Abstract
Cross-border travel often presents challenges in document storage, which can burden travelers. This study addresses the issue by designing a credential bag that enhances safety, convenience, and environmental sustainability. Utilizing design research, we applied the KANO model to categorize user needs, employed analytic [...] Read more.
Cross-border travel often presents challenges in document storage, which can burden travelers. This study addresses the issue by designing a credential bag that enhances safety, convenience, and environmental sustainability. Utilizing design research, we applied the KANO model to categorize user needs, employed analytic hierarchy process to prioritize these needs, and used quality functional deployment to translate them into specific design elements. The KANO model has identified a total of 18 demand indicators, including “must-be”, one-dimensional, and attractive. An analytic hierarchy process analysis of the secondary indicators found that demands for the security of anti-theft, partition storage of documents, a variety of carrying methods and green sustainability have relatively high weight. The innovative solutions derived from the KANO-AHP-QFD model improve design practices and user experience in document storage. This approach offers a scientific and practical reference for the sustainable development of travel supplies and the luggage industry. Full article
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19 pages, 5278 KiB  
Article
A Novel Method for Improving Baggage Classification Using a Hyper Model of Fusion of DenseNet-161 and EfficientNet-B5
by Mohammed Ali Saleh, Mohamed Abdouh and Mohamed K. Ramadan
Big Data Cogn. Comput. 2024, 8(10), 135; https://doi.org/10.3390/bdcc8100135 - 11 Oct 2024
Viewed by 1561
Abstract
In response to rising concerns over crime rates, there has been an increasing demand for automated video surveillance systems that are capable of detecting human activities involving carried objects. This paper proposes a hyper-model ensemble to classify humans carrying baggage based on the [...] Read more.
In response to rising concerns over crime rates, there has been an increasing demand for automated video surveillance systems that are capable of detecting human activities involving carried objects. This paper proposes a hyper-model ensemble to classify humans carrying baggage based on the type of bags they are carrying. The Fastai framework is leveraged for its computational prowess, user-friendly workflow, and effective data-cleansing capabilities. The PETA dataset is utilized and automatically re-annotated into five classes based on the baggage type, including Carrying Backpack, Carrying Luggage Case, Carrying Messenger Bag, Carrying Nothing, and Carrying Other. The classification task employs two pretrained models, DenseNet-161 and EfficientNet-B5, with a hyper-model ensemble that combines them to enhance accuracy. A “fit-one-cycle” strategy was implemented to reduce the training time and improve accuracy. The proposed hyper-model ensemble has been experimentally validated and compared to existing methods, demonstrating an accuracy of 98.6% that exceeds current approaches in terms of accuracy, macro-F1, and micro-F1. DenseNet-161 and EfficientNet-B5 have achieved accuracy rates of 95.5% and 97.3%, respectively. These findings contribute to expanding research on automated video surveillance systems, and the proposed model holds promise for further development and use in diverse applications. Full article
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13 pages, 4196 KiB  
Article
Mechanical Performance of Glass/Epoxy Composites Loaded with Silane-Treated Aluminum Hydroxide Fillers
by Khubab Shaker, Muhammad Adnan, Yasir Nawab, Muhammad Umair, Madeha Jabbar, Amna Siddique and Ahsan Ahmad
Polymers 2023, 15(17), 3514; https://doi.org/10.3390/polym15173514 - 23 Aug 2023
Cited by 8 | Viewed by 1836
Abstract
This study investigates the influence of silane-treated aluminum hydroxide on the mechanical performance of flame-retardant composites. These composites have potential applications for luggage bags, as a replacement for conventional plastics, offering more durability and lighter weight. Glass fabric was used as the reinforcement, [...] Read more.
This study investigates the influence of silane-treated aluminum hydroxide on the mechanical performance of flame-retardant composites. These composites have potential applications for luggage bags, as a replacement for conventional plastics, offering more durability and lighter weight. Glass fabric was used as the reinforcement, while epoxy was used as the matrix material. To impart flame retardancy, aluminum hydroxide nanoparticles were used as fillers in different weight % age (5%, 10% and 15%). As these are inorganic particles and have compatibility issues with the matrix material, silane-coupling agents (Dynasylan® 6490 and Dynasylan Glymo) were used to treat these filler particles. Both the silane-coupling agents fraction used for treatment and the fillers fraction added to the composites were varied to determine the most optimum combination. The mechanical properties of the developed composites such as tensile, flexural, and short beam shear strength were investigated. The best results were exhibited by 10% aluminum hydroxide fillers treated with 1% (by weight) coupling agent (Dynasylan Glymo). Full article
(This article belongs to the Section Polymer Composites and Nanocomposites)
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17 pages, 2996 KiB  
Concept Paper
Development of a Passenger Assistance System to Increase the Attractiveness of Local Public Transport
by Anja K. Faulhaber, Jens Hegenberg, Sophie Elise Kahnt, Franz Lambrecht, Daniel Leonhäuser, Stefan Saake, Franka Wehr, Ludger Schmidt and Carsten Sommer
Sustainability 2022, 14(7), 4151; https://doi.org/10.3390/su14074151 - 31 Mar 2022
Cited by 4 | Viewed by 3231
Abstract
In this paper, we present a concept for an assistance system for public transport passengers currently being developed for Kassel, Germany, and its surrounding area. The assistance system aims at increasing the attractiveness of local public transport by reducing barriers to use, thus [...] Read more.
In this paper, we present a concept for an assistance system for public transport passengers currently being developed for Kassel, Germany, and its surrounding area. The assistance system aims at increasing the attractiveness of local public transport by reducing barriers to use, thus promoting sustainable travel behavior. Three main barriers were identified: crowded vehicles, missed connections, and inconveniences in the transportation of shopping bags and luggage. To tackle these issues, three assistance system services were conceptualized: the occupancy rate informing passengers about the occupancy level of vehicles, the transfer connection monitor and secure system giving passengers the option to communicate transfer connection requests, and the delivery service allowing the use of public transport while shopping without the need to transport purchased goods. The three services are presented in detail along with the user interfaces they will be integrated into. Moreover, for the further implementation of the assistance system, a user requirement analysis is outlined. We finally give an overview and outlook regarding the implementation and evaluation of the concept in laboratory studies and a one-year field study. Full article
(This article belongs to the Special Issue Innovative Interactions for Smart Public Transport)
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16 pages, 4557 KiB  
Article
Polyurethane Impregnation for Improving the Mechanical and the Water Resistance of Polypropylene-Based Textiles
by Antonella Patti, Francesco Costa, Marta Perrotti, Domenico Barbarino and Domenico Acierno
Materials 2021, 14(8), 1951; https://doi.org/10.3390/ma14081951 - 13 Apr 2021
Cited by 23 | Viewed by 3864
Abstract
Commercial waterborne polyurethane (PU) dispersions, different in chemistry and selected on the basis of eco-friendly components, have been applied to a common polypropylene (PP)-based woven fabric. Impregnation has been chosen as a textile treatment for improving the features of basic technical textiles in [...] Read more.
Commercial waterborne polyurethane (PU) dispersions, different in chemistry and selected on the basis of eco-friendly components, have been applied to a common polypropylene (PP)-based woven fabric. Impregnation has been chosen as a textile treatment for improving the features of basic technical textiles in light of potential applicability in luggage and bag production. The effect of drying method, performed under conditions achieved by varying the process temperature and pressure, on the features of the treated textiles, has been verified. The prepared specimens were characterized in terms of mechanical behavior (tensile, tear and abrasion resistance) and water resistance (surface wettability and hydrostatic pressure throughout the treated textiles). The experimental results suggest an incremental improvement of the tensile features for all the investigated specimens. For tear strength, no augmentation compared to that of the neat textile, could be verified as a consequence of polyurethane treatment. Remarkable improvements of abrasion resistance were displayed for all the impregnated PP textiles. Benefits in water resistance could be attributed to the presence of hydrophobic PU in the textile weaving of the PP samples. The ultimate improvement in water resistance was dependent on drying conditions. Full article
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