Green Computing Research Articles

Developing biobased and degradable polyazomethines from hemin

The development of biobased polymers is emerging as a critical issue for researchers in this era, especially for conjugated or semiconducting polymers, due to the lack of natural conjugated building blocks. In addition, it is of urgent importance to develop degradable polymers to diminish the increasing amount of plastic waste. Therefore, we aim to utilize hemin-based materials as a building block to develop semi-conjugated, degradable, and biobased polymers in this study. Accordingly, hemin derived from bovine is modified to remove the ferric ion and functionalize with amine or aldehyde groups. The aldehyde-functionalized protoporphyrin is copolymerized with p-phenylenediamine, 2,7-fluorenediamine, and amine-functionalized protoporphyrin to form a series of polyazomethines of PDA, FDA, and PPIX. The semi-conjugated polyazomethines exhibit varied electrostatic potential distributions and frontier energy levels based on their compositions; in addition, all the polyazomethines present high biobased contents spanning the range of 60–80%. Notably, PPIX can be rapidly depolymerized by acid hydrolysis with 0.01 mol L−1 of HCl within several hours, guaranteed by the evolutions of optical absorption and size-exclusion chromatography, which show that the polyazomethines degrade to monomers to short-chain oligomers. In the aspect of the optoelectronic device application, the semi-conjugated characteristics of the hemin-based polyazomethines give rise to their high performance as a photoresponsive polymer electret in photonic transistor memory. By fine-tuning the molecular structure and energy levels, the developed polyazomethine of FDA achieves decent data discernibility and long-termed cyclic operation as a component of memory electronics, thereby rendering green electronics exceptionally economical and environmentally feasible.

Tuning low frequency dielectric properties of flexible ternary polymer blend film reinforced with bio- ionic liquid for the application in green electronics

Biofriendly conducting polymeric blends and composites exhibiting high dielectric constant and dielectric loss are promising for applications as sensors, actuators, microwave absorbing materials, fuel cells and biomedical applications. A great deal of work is reported on using fillers such as conductive nanomaterials, bio ceramics, carbon nanotubes, graphene etc in blends of Polyvinylchloride, Polyvinylpyrrolidone, Polymethylmethacrylate, Polyvinyl alcohol with conducting polymer Polypyrrole, Polyaniline for enhancing their conductivities, tailoring dielectric and electrical, thermal and surface properties of such polymeric materials. However, appropriate dispersion of such fillers in polymeric matrices remains technically challenging. In this regard, bio-ionic liquids have emerged as a novel class of materials and their combination with specific polymer blends opens the possibility to develop smart novel materials with different morphologies. Present work aims to explore the low frequency dielectric properties exhibited by free standing, flexible, biofriendly/biodegradable ternary polymer blend film of Polyvinylchloride-Polyvinylpyrrolidone-Polypyrrole reinforced with choline acetate. The detailed analysis of low frequency dielectric properties authenticates that addition of choline acetate result in modifying the dielectric properties of ternary polymer blend film.. The harmlessness of these films was confirmed from disk diffusion test indicating their benign nature towards (Escherichia coli) (CFT073) and (Bacillus subtilis). Therefore, the developed films can potentially be used for various scale multifunctional dielectric and electrical applications working in close contact with living matter, green electronics and various health monitoring systems.

Green Wireless Networks for Iraq: Transitioning Wireless Base Stations to Renewable Energy

Green Wireless Networks for Iraq: Transitioning Wireless Base Stations to Renewable Energy

High‐Performance Nd: AIZO/Al2O3 Dual Active Layer Design Without Thermal Annealing: High‐Speed Electron Transport and Defect Modification in Thin Film Transistors

Flexible wearable electronics have been developing rapidly in recent years, and one of its core devices, thin‐film transistor (TFT), is also attracting attention. Current TFT preparation processes usually require high annealing temperatures (>350 °C), which is not conducive to their application on most flexible substrates (PET, PEN, nanopaper, etc.). In this article, a strategy for the room temperature preparation of Nd:AIZO/Al2O3 dual‐layer TFT devices is proposed, which has appreciable electrical properties without additional annealing treatment. Taguchi orthogonal experimental methods are used to investigate the effects of three essential process parameters on the performance of the films and devices. As Nd:AIZO deposition time decreases and Al2O3 oxygen percentage and time during deposition increase, the μsat and SS of TFT devices are improved. With the preferred combination of parameters applied to the device preparation, the device exhibits a saturation mobility μsat of 24.3 cm2 V−1 s−1, a threshold voltage Vth of −1.4 V, a subthreshold swing SS of 0.21 V decade−1 and an Ion/Ioff ratio of 4.26 × 108. The ultra‐thin Al2O3 layer act as defect modification and form high‐speed electron transport in channel layer. The room temperature preparation of the dual‐layer TFT process proposed in this article is compatible with large‐size low‐cost flexible substrates. It has great potential for application in green flexible wearable electronics.

Enhancing green service innovation behavior through green involvement: the role of information technology adoption

Purpose Developing green innovative services is critical to the restaurant industry to achieve significant benefits as well as environmental sustainability. This study aims to explore the mechanisms through which employees’ green involvement can foster green service innovation behavior.Design/methodology/approach The data set garnered from employees who worked in restaurants was used to test these mechanisms. A partial least square technique was conducted on this data set.Findings The results revealed the employees’ green involvement significantly influences their green service innovation intention, which subsequently influences their green service innovation behavior. Furthermore, information technology (IT) adoption was found to fortify the linkage of employee green involvement with green service innovation intention.Practical implications The results suggest to the restaurant industry that awareness of green service innovation and IT adoption practices can help restaurants to develop effective sustainability work practices and meet societal expectations.Originality/value This study extends the restaurant management literature by linking the green involvement of restaurant employees to green service innovation intention as well as identifying the moderating role of IT adoption underlying this link.

Green information technology and green information systems: science mapping of present and future trends

Green information technology and green information systems: science mapping of present and future trends

Nexus among green intellectual capital, green information systems, green management initiatives and sustainable performance: a mediated-moderated perspective

PurposeSustainability issues are crucial in today’s competitive environment. The integration of technology plays a vital role in the attainment of sustainability objectives. The study aims to investigate the relationship between green intellectual capital (IC), green information systems (IS), green management initiatives (GMI) and green technology adoption in light of natural resource-orchestration theory (ROT). Moreover, digital technology adoption mediates between green IC, green IS, GMI and sustainable performance. Finally, digital transformation strategy is used as a moderator between green technology adoption and sustainable performance.Design/methodology/approachA sample of 484 managers from automobile manufacturing companies was used in this study to evaluate the proposed relationships using the Structural Equation Modeling (SEM) methodology.FindingsFindings reveal that green IC, green IS and GMI significantly influence green technology adoption. Besides, green technology adoption plays a crucial role in improving sustainable performance. Moreover, green technology adoption significantly mediates between green IC, green IS, GMI and sustainable performance. Finally, a digital transformation strategy significantly strengthens the relationship between green technology adoption and sustainable performance.Practical implicationsThe organizations need green technology adoption to address environmental concerns, respond to consumer demand, achieve cost savings and comply with government regulations. Besides, in decision-making, organizations must focus on green IC, green IS, GMI, green technology adoption and digital transformation strategy to boost sustainable performance.Originality/valueThe originality of this study lies in its use of the natural ROT as a framework to examine the impact of multiple green resources on green technology adoption, leading to sustainable performance. Digital transformation strategy is used as a moderator between green technology adoption and sustainable performance. This study provides a comprehensive and integrated perspective on the subject with empirical evidence and relevant insights, contributing to the advancement of the field.

Tackling Digital Degree in Education: Optimal Use of Green Information and Communication Technology (GICT)

The COVID-19 pandemic has resulted in a significant increase in the use of Information and Communication Technology (ICT) in all areas of the education sector, particularly in developed economies as well as developing countries, regardless of preparedness. This is because, under the new normal, ICT adoption has become ubiquitous and fast-moving, even in the face of impending challenges. In the case of education, in particular, the disruption caused by the pandemic has caused ICT to become an instantaneous apparatus that has sustained the teaching and learning sector during the global lockdown that ravaged the world between 2019 and 2020, with consequences that are still visible today. Once more, the pandemic's outbreak made it clear to world leaders in numerous developing nations that they had no option but to use an ICT tool that was accelerating the growth of their countries' national knowledge bases. Notwithstanding the apparent difficulties integrating ICT into teaching and learning, the COVID-19 pandemic's effects accelerated the spread of ICT, forcing teachers and students in Nigeria and, in fact, around the world, to work online despite their readiness in terms of knowledge, abilities, and resources. In today's globalized world, ICT has become indispensable in filling gaps in the education sector, but it is also important to recognize the role of green information technology. This study examined how ICT instantly filled in the educational gaps during a pandemic-related lockdown, as well as how Green IT impacts our ecology. In order to truly close the digital divide that existed in the education sector in today's carefree world, the research has supplied the essential information and details, as well as recommendations for how to best use ICT tools to secure the ecosystem. Keywords: ICT, Covid -19 Pandemic, Green IT, Digital Divide. Aims Research Journal Reference Format: Malasowe, B.O., Okpor, M.D. & Edim, B.E. (2024): Tackling Digital Degree in Education: Optimal Use of Green Information and Communication Technology (GICT). Advances in Multidisciplinary and Scientific Research Journal Vol. 10. No. 1. Pp 67-76. www.isteams.net/aimsjournal. dx.doi.org/10.22624/AIMS/V10N1P5

IEEE Journal on Flexible Electronics Call for Papers: Special Issue on Circular, Sustainable, and Green Electronics

IEEE Journal on Flexible Electronics Call for Papers: Special Issue on Circular, Sustainable, and Green Electronics

Crunching Numbers, Sustainably

Abstract Energy use in computing a growing challenge. The ever-expanding use of artificial intelligence and other high performing computing applications only adds to the problem, demanding more energy and generating more carbon emissions. Computer scientists and microelectronics engineers are striving to reduce the digital world’s carbon footprint in an approach called green computing.

Design of a Power Efficient Model of PWM Generator for Green Communication using High Performance FPGAs

Aim: This paper will focus on promoting the ideas of green communication Background: Pulse Width Modulation (PWM) generator is used to control the power transfer in any communication model. It is one of the most crucial parts of an electrical circuit. Our main focus in this research work is to develop an energy and power-efficient PWM generator by using Field Programmable Gate Array (FPGA) logic to elevate green communication Objective: Our main focus in this research work is to develop an energy and power-efficient PWM generator by using Field Programmable Gate Array (FPGA) logic to elevate green communication. Methods: In order to make the PWM suitable for GC, we have implemented the design on VIVADO ISE from Xilinx. The power analysis as well as resource utilization are targeted on three different FPGAs. Results: Different IO standards of Stub Series Terminated Logic (SSTL) family are explored at different FPGA’s. Power analysis is deployed on the 7 series FPGAs of 3 different categories i.e., Spartan 7 (channel length = 28 nm), Kintex 7 (channel length = 20 nm) and ultra scale Zynq 7 (channel length = 16 nm). Conclusion: It can be concluded from power analysis that SPARTAN-7 device is the most powerefficient and ZYNQ Ultra scale+utilizes the highest amount of power. However, KINTEX-7 Ultrascale device lies in the middle of both these devices as far as power consumption is concerned. There is a reduction of 43.07% TP consumption for SPARTAN-7 device with SSTL135 IO when equated with ZYNQ Ultra scale+ with SSTL18_I IO. Also, it can be observed from sections 5.1, 5.2 and 5.3 that there is more contribution of DP in TP consumption than SP. Hence the device utilizes additional power when it is in active state than static state. Since PWM generator is an integral part of data and wireless communication, it should require less power for proficient transmission and wellorganized green computing and communication.

Advancing green computing: Practices, strategies, and impact in modern software development for environmental sustainability

Advancing Green Computing: Practices, Strategies, and Impact in Modern Software Development for Environmental Sustainability explores the evolving landscape of green computing within the realm of software development, emphasizing the imperative for environmentally sustainable practices. In response to escalating environmental concerns, the computing industry is undergoing a paradigm shift towards reducing its carbon footprint and mitigating ecological impacts. This shift is particularly crucial in software development, given its pervasive influence on technological ecosystems. The review delves into the multifaceted dimensions of green computing, elucidating various practices and strategies that are instrumental in fostering environmental sustainability. From optimizing code efficiency to embracing energy-efficient computing architectures, the review underscores the diverse approaches available to software developers in minimizing resource consumption and carbon emissions. Furthermore, it examines the broader ramifications of these practices, emphasizing their potential to reshape the software industry's ecological footprint and contribute to global efforts for environmental conservation. Moreover, the review highlights the symbiotic relationship between green computing and modern software development methodologies. It elucidates how principles such as agile development and DevOps can be synergistically integrated with green computing practices to enhance sustainability throughout the software development lifecycle. By adopting an interdisciplinary approach that integrates environmental considerations into software design, development, and deployment processes, organizations can catalyze transformative changes towards a greener computing ecosystem. The review also investigates the tangible impact of green computing practices on environmental sustainability metrics. Through case studies and empirical analyses, it showcases the efficacy of various strategies in reducing energy consumption, carbon emissions, and electronic waste generation. Additionally, it discusses the economic and societal benefits accrued from adopting environmentally sustainable practices, ranging from cost savings to enhanced corporate social responsibility. Advancing Green Computing: Practices, Strategies, and Impact in Modern Software Development for Environmental Sustainability provides a comprehensive overview of the evolving landscape of green computing within the context of software development. It elucidates the myriad opportunities and challenges associated with fostering environmental sustainability in the computing industry and underscores the transformative potential of integrating green computing principles into modern software development practices.

Sustainable IT practices in Nigerian banking: Environmental perspectives review

This review paper aims to critically analyze sustainable information technology (IT) practices in the Nigerian banking sector, focusing on environmental perspectives. The primary objective is to identify and evaluate the extent to which Nigerian banks have integrated sustainable IT practices and the impact of these practices on environmental sustainability. The methodology involves a comprehensive review of existing literature, including academic journals, industry reports, and case studies, to gather insights into the current state of sustainable IT in Nigerian banking. Key findings reveal that while some Nigerian banks have begun to adopt green IT initiatives, such as paperless operations, energy-efficient data centers, and electronic banking services, the overall adoption rate is relatively low compared to global standards. The study identifies barriers to adoption, including lack of awareness, limited regulatory frameworks, and inadequate infrastructure. Despite these challenges, the paper highlights the potential benefits of sustainable IT practices, such as reduced carbon footprint, operational cost savings, and enhanced corporate reputation. The paper concludes that for Nigerian banks to fully embrace sustainable IT practices, there needs to be a concerted effort involving policy formulation, awareness campaigns, and investment in green technologies. It recommends that stakeholders, including government, regulatory bodies, and the banks themselves, collaborate to create an enabling environment for sustainable IT. This review contributes to the understanding of sustainable IT in the Nigerian banking sector and provides a foundation for future research and policy development in this area.

The role of IT in sustainable environmental management: A global perspective review

This review offers a comprehensive overview of the intricate relationship between Information Technology (IT) and sustainable environmental management on a global scale. As the world grapples with environmental challenges, understanding the pivotal role of IT in fostering sustainability becomes increasingly imperative. The review begins by acknowledging the pressing environmental issues faced globally, including climate change, resource depletion, and biodiversity loss. It highlights the potential of IT to serve as a transformative force in addressing these challenges and fostering sustainable practices across various industries. The review explores how IT contributes to environmental sustainability through improved monitoring, data collection, and analysis. It delves into the role of technologies such as Internet of Things (IoT) devices, sensors, and satellite imaging in providing real-time environmental data. This information enables better decision-making, resource management, and the implementation of eco-friendly practices. Furthermore, the review examines the role of IT in promoting energy efficiency and reducing carbon footprints. It discusses the adoption of smart grids, energy management systems, and sustainable software solutions that contribute to optimizing energy consumption and reducing environmental impact. The review also explores the concept of "green IT," emphasizing the importance of adopting environmentally friendly practices in the design, production, and disposal of IT equipment. It discusses initiatives aimed at minimizing electronic waste and promoting the circular economy within the IT industry. Additionally, the global perspective of the review sheds light on how IT facilitates collaboration and knowledge sharing among nations and organizations. The review underlines the significance of international cooperation in leveraging IT for sustainable environmental management, emphasizing the role of technology in achieving global environmental goals. In conclusion, this review underscores the multifaceted role of IT in promoting sustainable environmental management globally. It emphasizes the transformative potential of IT in addressing environmental challenges, fostering innovation, and driving collaborative efforts towards a more sustainable and resilient future.

Comparative Study of Building Performance Efficiency Analysis Methods using EDGE Rating Tools and Sefaira Energy Efficient Design Software

Comparative Study of Building Performance Efficiency Analysis Methods using EDGE Rating Tools and Sefaira Energy Efficient Design Software

Correction to: Performance comparison of external modulators in RoF for green radio communication

Correction to: Performance comparison of external modulators in RoF for green radio communication

A zinc porphyrin-amidine as a green carbon-based electron transport material for organic-light emitting diodes

Charge injection and transport interlayers based on artificial green carbon materials are imperative for a sustainable future of many classes of optoelectronic devices, including organic light-emitting diodes (OLEDs). Especially, porphyrin derivatives can act as efficient energy and charge funnels mimicking their successful photosynthetic function. Here, we report on the application of a novel green carbon material, in particular, a zinc porphyrin derivative bearing an amidine functional group (referred to as ZnP-amidine), as an electron transport material in fluorescent OLEDs based on a green-yellow co-polymer emitter. ZnP-amidine is processed from environmental friendly solvents without any annealing requirements thus being suitable for low-cost sustainable optoelectronics. It is applies as an ultra-thin interlayer between the aluminum cathode and the emissive layer to enable efficient electron transport and stable performance. This work paves the path towards low-cost green carbon materials inspired by natural processes for organic optoelectronics.

Transparent Structures for ZnO Thin Film Paper Transistors Fabricated by Pulsed Electron Beam Deposition.

Thin film transistors on paper are increasingly in demand for emerging applications, such as flexible displays and sensors for wearable and disposable devices, making paper a promising substrate for green electronics and the circular economy. ZnO self-assembled thin film transistors on a paper substrate, also using paper as a gate dielectric, were fabricated by pulsed electron beam deposition (PED) at room temperature. These self-assembled ZnO thin film transistor source-channel-drain structures were obtained in a single deposition process using 200 and 300 µm metal wires as obstacles in the path of the ablation plasma. These transistors exhibited a memory effect, with two distinct states, "on" and "off", and with a field-effect mobility of about 25 cm2/Vs in both states. For the "on" state, a threshold voltage (Vth on = -1.75 V) and subthreshold swing (S = 1.1 V/decade) were determined, while, in the "off" state, Vth off = +1.8 V and S = 1.34 V/decade were obtained. A 1.6 μA maximum drain current was obtained in the "off" state, and 11.5 μA was obtained in the "on" state of the transistor. Due to ZnO's non-toxicity, such self-assembled transistors are promising as components for flexible, disposable smart labels and other various green paper-based electronics.

Biodegradable Solid Polymer Electrolytes from the Discarded Cataractous Eye Protein Isolate.

The protein extracted from the discarded eye lenses postcataract surgery, referred to as the cataractous eye protein isolate (CEPI), is employed as a polymer matrix for the construction of solid polymer electrolyte species (SPEs). SPEs are expected to be inexpensive, conductive, and mechanically stable in order to be economically and commercially viable. Environmentally, these materials should be biodegradable and nontoxic. Taking these factors into account, we investigated the possibility of using a discarded protein as a polymer matrix for SPEs. Natural compounds sorbitol and sinapic acid (SA) are used as the plasticizer and cross-linker, respectively, to tune the mechanical as well as electrochemical properties. The specific material formed is demonstrated to have high ionic conductivity ranging from ∼2 × 10-2 to ∼8 × 10-2 S cm-1. Without the addition of any salt, the ionic conductivity of sorbitol-plasticized non-cross-linked CEPI is ∼7.5 × 10-2 S cm-1. Upon the addition of NaCl, the conductivity is enhanced to ∼8 × 10-1 S cm-1. This study shows the possibility of utilizing a discarded protein CEPI as an alternative polymer matrix with further potential for the construction of tunable, flexible, recyclable, biocompatible, and biodegradable SPEs for flexible green electronics and biological devices.

Biodegradable Conducting PVA-Hydrogel Based on Carbon Quantum Dots: Study of the Synergistic Effect of Additives

Conductive hydrogels are becoming one of the most important milestones for the development of new scaffolds, biosensors, supercapacitors, and green electronics within the field of biomedicine. In this work, we study the effect of different types of electroactive additives such as poly(3,4-ethylenedioxythiophene), tannic acid, and carbon quantum dots (CQDs), to form different poly(vinyl alcohol) (PVA)-based hydrogels with enhanced electrochemical properties. Different physicochemical tests are carried out to characterize the different PVA-based hybrid hydrogels and the rates of their degradation and loss of electroactivity throughout an eight-week biodegradation process. This work shows the individual and synergistic effects of the additives on various mechanical properties, including storage modulus and swelling ratio, and electrochemical properties of the PVA hydrogel. The additives have proven to enhance the electroactivity of the PVA-based hydrogels but as well their degradation. Finally, the use of the new hydrogel as a pressure sensor is also investigated. The study provides an insight on the potential use of CQDs, in synergy with other electroactivity enhancers, in the fabrication of novel hybrid conducting hydrogels in green electronics.Graphical