Information, communication and space technology applications for sustainable development

Author(s):  
Phillip Olla
2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Mohammed Amin Rabah ◽  
Bekhti Mohammed

Purpose The present work aims to analyze the performance of a newly designed graphene-based patch antenna by varying the chemical potential in graphene sheet, using the CST Microwave Studio ® software. This study mainly seeks to discuss and assess the advantage of using graphene, instead of copper, as the radiating patch. It should be noted that graphene is a new material that possesses unique properties. Its parameters are optimized for the purpose of introducing it in satellite technology. Design/methodology/approach The use of graphene as a radiating patch of space technology applications, where a polygonal graphene patch antenna element is designed by the CST Microwave Studio ® software with Taconic RF-41 substrate to resonate in the satellite bands. Findings Analysis of a graphene patch sheet by a variation in the chemical potential to ensure operation in a space environment. Originality/value The increase in the chemical potential for a graphene patch antenna has shown a prominent increase in the values of the gain. A new contribution, by the combination of the antenna performance improvement techniques and the use of graphene as a radiating patch of space technology applications.


Author(s):  
Ray Walshe ◽  
Kevin Casey ◽  
Jane Kernan ◽  
Donal Fitzpatrick

Emerging Technologies like Artificial Intelligence (AI), Big Data, Internet of Things (IoT), Blockchain and 5G communications are innovation accelerators creating new products, processes and industries by disrupting the Information Communication Technologies status quo. International Standards Development Organisations (SDOs) and Standard Setting Organisations (SSOs) develop and evolve consensus documents of the state of the art and publish these international agreements as Standards. In this document the authors present uses cases where some of these emerging technologies can contribute significantly to achieving the United Nations Sustainable Development Goals.


Author(s):  
Laura Tolliver ◽  
Xiaoning Jiang ◽  
Tian-Bing Xu

Electromechanical actuators that generate large displacements, have large load capabilities, and demonstrate strong resonance characteristics are in great demand in the areas of precision positioning, active vibration control, and energy harvesting. Piezoelectric materials have been widely investigated for these applications because of their high energy density, quick response time, and relatively low driving voltages, but they demonstrate very small strain, typically about 0.1%. We present experimental and finite element results for two designs that use active and passive frames, respectively, to enhance the small strain in piezoelectric multilayer stacks. The first design, stacked-HYBATS, employs the synergetic contribution of d33 and d31 mode piezoelectric material. Finite element results show that this structure can generate over 50 microns of displacement and nearly 40 N of blocking force in a 36 mm × 22 mm × 10 mm footprint. The second design employs frames made from passive materials to form two stages of strain amplification in a 42 mm × 30 mm × 20 mm footprint. This two-stage design can produce over 600 microns of displacement and has a blocking force of 27 N. The active and passive materials of both designs can be varied to maximize displacement and/or blocking force. The stacked-HYBATS and the two-stage amplification system display favorable force-displacement capabilities and are promising for a variety of manufacturing and space technology applications.


Electronics ◽  
2019 ◽  
Vol 8 (3) ◽  
pp. 264 ◽  
Author(s):  
David Valiente ◽  
Luis Payá ◽  
Susana Fernández de Ávila ◽  
Juan Ferrer ◽  
Oscar Reinoso

Over the past few decades, the incipient growth of technology applications sustained by electronics has contributed to the adaption of learning programs in many engineering degrees at university, fostering the presence of electronics subjects. This highlights the paramount importance of improving the teaching of electronics, especially in the first years of Bachelor’s degrees in engineering. However, despite the fact that the teaching programs have been periodically renewed with more practical sessions, the students’ outcomes are still noticeably low. So far, results only confirm improvements in the students’ performance in the resolution of electronic circuits. Nonetheless, this is generally subject to the application of repetitive circuit resolution models, to the detriment of the real and active understanding of electronic principles. In this context, this study assesses the actual efficacy of different ICT (Information, Communication and Technology) resources, introduced into an electronics course, taught in an engineering Bachelor’s degree, within the Spanish official university system. These resources have been sequentially introduced during five consecutive years. We have conducted a statistical analysis to infer whether all the resources are equally relevant for the achievement of the students or not. In addition, we have designed a survey to measure the perceived improvement in the understanding of concepts, acquired competences, and reported satisfaction and attitude towards the use of specific resources during the program. Amongst others, LMS (Learning Management System) support, online PBL (Problem-Based Learning) activities, and CSA (Circuit Simulation Applets) have been considered. Overall, the designed learning program has been intended to provide students with long-term references to enrich their resources’ background regarding electronics.


Author(s):  
Mrs. Marthamma D Y

Abstract: There is no doubt that the integration of ICT in the provision of library services can bring great benefits to the entire community and the nation. ICTs, which continue to be a support tool for the provision of up-to-date and timely information and library services, are also essential for sustainable development .This paper is an attempt to examine the critical role that information and communication technology (ICT). How it plays important role in the management and delivery of library services in sustainable development. Despite the wide range of opportunities offered by the advent of ICT, it has been observed that the application of ICT to library services appears inadequate, probably due to several challenges. Using the simple literature search methodology, the paper sought to review the related literature on ICT resources and ICT-based services in libraries, the benefits of ICT and the role of libraries in sustainable development. The document also identified the challenges of using ICT in libraries. Among other things, it was recommended to improve the capacity and level of adoption of ICT by libraries. Keywords: Information and Communication Technology (ICT), Libraries, Sustainable Development, ICT-based library services


Author(s):  
Zainab Sambo Gidadawa ◽  
Mansur Bello Dogondaji

Information communication Technology (ICT) is an indispensable part of the contemporary world. Infact, culture and society have to be adjusted to meet the challenge of knowledge age. The pervasiveness of ICT has brought about rapid technological, social, political and economic transformation, which has eventuated in a network society organized around ICT. In view of the above therefore, the paper tries to highlight on the application of ICT in Nigerian educational system for achieving sustainable development. Also, the paper discusses the concept of ICT, sustainable development as well as the computer itself and its major components. Finally, the paper concludes on the challenges of ICT in Nigeria and some possible recommendations were offered.


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