IoT-Based Agro-Toolbox for Soil Analysis and Environmental Monitoring

Pechlivani, Eleftheria Maria; Papadimitriou, Athanasios; Pemas, Sotirios; Ntinas, Georgios; Tzovaras, Dimitrios

doi:10.3390/mi14091698

Cited by 15 publications

(4 citation statements)

References 24 publications

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“…AM has shown great potential for utilizing recycling feedstock for sports equipment or clothing. TPU and PLA have been used lately to produce 3D printed shoe soles [128,146] and other flexible products (e.g., protective mouthguards) [147]. Protective sports equipment is an adequate application for reused automotive and electronic waste polymers (rABS or rPC).…”

Section: Large Scale Additive Manufacturing and Possible Future Appli...mentioning

confidence: 99%

Mechanical Performance of Recycled 3D Printed Sustainable Polymer-Based Composites: A Literature Review

Kyriakidis,

Kladovasilakis,

Pechlivani

et al. 2024

J. Compos. Sci.

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The development of efficient waste valorization strategies has emerged as an important field in the overall efforts for alignment with the environmental goals that have been set by the European Union (EU) Green Deal regarding the development of sustainable circular economy models. Additive manufacturing has emerged as a sustainable method for secondary life product development with the main advantages of it being a form of net-zero waste production and having the ability to successfully transport complex design to actual products finding applications in the industry for rapid prototyping or for tailored products. The insertion of eco-friendly sustainable materials in these processes can lead to significant reduction in material footprints and lower energy demands for the manufacturing process, helping achieve Sustainable Development Goal 12 (SDG12) set by the EU for responsible production and consumption. The aim of this comprehensive review is to state the existing progress regarding the incorporation of sustainable polymeric composite materials in additive manufacturing (AM) processes and identify possible gaps for further research. In this context, a comprehensive presentation of the reacquired materials coming from urban and industrial waste valorization processes and that are used to produce sustainable composites is made. Then, an assessment of the printability and the mechanical response of the constructed composites is made, by taking into consideration some key thermal, rheological and mechanical properties (e.g., viscosity, melting and degradation temperature, tensile and impact strength). Finally, existing life cycle analysis results are presented regarding overall energy demands and environmental footprint during the waste-to-feedstock and the manufacturing processes. A lack of scientific research was observed, regarding the manifestation of novel evaluation techniques such as dynamic mechanical analysis and impact testing. Assessing the dynamic response is vital for evaluating whether these types of composites are adequate for upscaling and use in real life applications.

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Section: Large Scale Additive Manufacturing and Possible Future Appli...mentioning

confidence: 99%

Mechanical Performance of Recycled 3D Printed Sustainable Polymer-Based Composites: A Literature Review

Kyriakidis,

Kladovasilakis,

Pechlivani

et al. 2024

J. Compos. Sci.

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“…The materials used were PETG (poly ethylene terephthalate glycol) and PLA (polylactic acid) in filament form with a diameter of 1.75 mm. PETG was chosen for the external parts because it is a durable material and is also recyclable and reusable [31,32]. PLA was selected because it is an environmentally friendly material and has biodegradable properties [33,34].…”

Section: Design and 3d Printingmentioning

confidence: 99%

Low-Cost Hyperspectral Imaging Device for Portable Remote Sensing

Pechlivani,

Papadimitriou,

Pemas

et al. 2023

Instruments

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Hyperspectral imaging has revolutionized various scientific fields by enabling a detailed analysis of objects and materials based on their spectral signatures. However, the high cost and complexity of commercial hyperspectral camera systems limit their accessibility to researchers and professionals. In this paper, a do-it-yourself (DIY) hyperspectral camera device that offers a cost-effective and user-friendly alternative to hyperspectral imaging is presented. The proposed device leverages off-the-shelf components, commercially available hardware parts, open-source software, and novel calibration techniques to capture and process hyperspectral imaging data. The design considerations, hardware components, and construction process are discussed, providing a comprehensive guide for building the device. Furthermore, the performance of the DIY hyperspectral camera is investigated through experimental evaluations with a multi-color 3D-printed box in order to validate its sensitivities to red, green, blue, orange and white colors.

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“…Microfluidic devices are well known for their miniaturization potential and high throughput. IoT-based wearable microfluidic sensing can non-invasively process and analyze biological and environmental components that could affect personal health, enabling smart personalized wellness monitoring [ 7 , 8 , 9 ]. Several microfluidic separation technologies have been introduced to continuously sort or separate sample particles by size fractions.…”

Section: Introductionmentioning

confidence: 99%

Geometry Scaling for Externally Balanced Cascade Deterministic Lateral Displacement Microfluidic Separation of Multi-Size Particles

Yin,

Dávila-Montero,

Mason

2024

Micromachines

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To non-invasively monitor personal biological and environmental samples in Internet of Things (IoT)-based wearable microfluidic sensing applications, the particle size could be key to sensing, which emphasizes the need for particle size fractionation. Deterministic lateral displacement (DLD) is a microfluidic structure that has shown great potential for the size fractionation of micro- and nano-sized particles. This paper introduces a new externally balanced multi-section cascade DLD approach with a section-scaling technique aimed at expanding the dynamic range of particle size separation. To analyze the design tradeoffs of this new approach, a robust model that also accounts for practical fabrication limits is presented, enabling designers to visualize compromises between the overall device size and the achievement of various performance goals. Furthermore, results show that a wide variety of size fractionation ranges and size separation resolutions can be achieved by cascading multiple sections of an increasingly smaller gap size and critical separation dimension. Model results based on DLD theoretical equations are first presented, followed by model results that apply the scaling restrictions associated with the second order of effects, including practical fabrication limits, the gap/pillar size ratio, and pillar shape.

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IoT-Based Agro-Toolbox for Soil Analysis and Environmental Monitoring

Cited by 15 publications

References 24 publications

Mechanical Performance of Recycled 3D Printed Sustainable Polymer-Based Composites: A Literature Review

Mechanical Performance of Recycled 3D Printed Sustainable Polymer-Based Composites: A Literature Review

Low-Cost Hyperspectral Imaging Device for Portable Remote Sensing

Geometry Scaling for Externally Balanced Cascade Deterministic Lateral Displacement Microfluidic Separation of Multi-Size Particles

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