HardwareX最新文献

3D-printed pulsator to enhance mass transfer in electrochemical reactors

IF 2

HardwareX Pub Date : 2025-03-27 DOI: 10.1016/j.ohx.2025.e00645

Kavin Teenakul, Luis Fernando Arenas, Jonas Hereijgers

{"title":"3D-printed pulsator to enhance mass transfer in electrochemical reactors","authors":"Kavin Teenakul, Luis Fernando Arenas, Jonas Hereijgers","doi":"10.1016/j.ohx.2025.e00645","DOIUrl":"10.1016/j.ohx.2025.e00645","url":null,"abstract":"<div><div>This study presents a cost-effective diaphragm pulsator, constructed for approximately €500, designed to enhance mass transport in laboratory electrochemical reactors. The pulsator allows accurate control of pulsation frequency between 1 Hz and 6 Hz and displacement volume, with simple programmability using an Arduino microcontroller. The design features multiple chambers that effectively isolate corrosive liquids from the mechanical components, ensuring durability and extended operational life. The pulsator’s 3D-printed components can be customized with different materials to suit various applications. Engineered to generate a pulsating flow profile that closely resembles a sinusoidal wave, video tracking analysis confirmed the sinusoidal nature of the flow, demonstrating consistent flow profile generation with adjustable frequency and amplitude. The maximum volume displacement achieved was 11.9 mL, which was reduced to 2.0 mL when the electrochemical cell was connected. Limiting current experiments with a ferri/ferrocyanide electrolyte showed that the mass transport coefficient of a typical cell increased from 2.3 × 10<sup>−3</sup> cm/s under constant flow to 4.5 × 10<sup>−3</sup> cm/s under pulsating conditions. These findings validate that the adjustable, Arduino-programmable sinusoidal pulsation generated by the diaphragm pulsator offers a practical and customizable method for enhancing mass transport in small-scale electrochemical reactors.</div></div>","PeriodicalId":37503,"journal":{"name":"HardwareX","volume":"22 ","pages":"Article e00645"},"PeriodicalIF":2.0,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143746590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A 360-degree imagery-multisensor system for visualizing environmental parameters in architecture and urban spaces

IF 2

HardwareX Pub Date : 2025-03-25 DOI: 10.1016/j.ohx.2025.e00643

Mojtaba Parsaee , André Potvin , Jean-François Lalonde , Marc Hébert , Claude M.H. Demers

{"title":"A 360-degree imagery-multisensor system for visualizing environmental parameters in architecture and urban spaces","authors":"Mojtaba Parsaee , André Potvin , Jean-François Lalonde , Marc Hébert , Claude M.H. Demers","doi":"10.1016/j.ohx.2025.e00643","DOIUrl":"10.1016/j.ohx.2025.e00643","url":null,"abstract":"<div><div>This research has designed a 360-degree imagery-multisensor system aiming to capture and visualize environmental parameters in architecture and urban spaces. Unlike existing tools, this system enables simultaneous recording of both imagery and non-imagery environmental data, including lighting, thermal, air quality, sound, and physical space parameters, within a 360-degree field of view. Lighting conditions are captured using panoramic high dynamic range imagery, complemented by a 360-degree array of sensors measuring illuminance levels and spectral power distribution. Thermal and air quality conditions are recorded using 360-degree thermal imagery, combined with hygrometers and air particle meters. Sound levels are also monitored across the full 360-degree field. The system is built using 3D printing technologies and Raspberry Pi computers, equipped with various sensor modules. Custom Python scripts enable real-time data capture, processing, and visualization. This cost-effective, easy-to-manufacture, programmable, and customizable innovation is aimed at students and educators in design and architecture, as well as building engineers. Furthermore, integrating imagery and sensor data supports the development of immersive virtual and augmented reality applications, offering new opportunities for education and the exploration of effective design solutions.</div></div>","PeriodicalId":37503,"journal":{"name":"HardwareX","volume":"22 ","pages":"Article e00643"},"PeriodicalIF":2.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143746544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Open-access smart blood pump platform for controlling extracorporeal membrane oxygenation

IF 2

HardwareX Pub Date : 2025-03-25 DOI: 10.1016/j.ohx.2025.e00644

Gabriella Glomp , Michael Cortelli , Briana Bernicker , Matthew Bacchetta , Rei Ukita

{"title":"Open-access smart blood pump platform for controlling extracorporeal membrane oxygenation","authors":"Gabriella Glomp , Michael Cortelli , Briana Bernicker , Matthew Bacchetta , Rei Ukita","doi":"10.1016/j.ohx.2025.e00644","DOIUrl":"10.1016/j.ohx.2025.e00644","url":null,"abstract":"<div><div>Clinical blood pump consoles for extracorporeal membrane oxygenation (ECMO) are poorly accessible to researchers due to their high cost. Furthermore, clinical machines are built and designed at a high level of information security, which limits their integration with third-party machines and software. These barriers hinder researchers from customizing blood pump consoles for their investigational needs, limiting innovations and advancements in the areas of blood pump automation and pulsation. To address these needs, we present on a programmable Smart Blood Pump console. This console can be assembled for under $200 and uses open-source tools including Arduino. Using this console, centrifugal blood pump heads can be operated at clinically relevant levels of flow and pressure needed in extracorporeal life support applications (>250 mmHg pressure head, >4 L/min of blood flow). Additionally, the programmable nature allows for utility beyond the standard indications of clinical extracorporeal blood pumps, including pulsatility and servo control. For future directions, this console will be further developed to accommodate a wider range of clinical pump heads. We envision that this will be an affordable, open-access platform to suit the varying needs of engineers and researchers for fostering innovations in ECMO technology.</div></div>","PeriodicalId":37503,"journal":{"name":"HardwareX","volume":"22 ","pages":"Article e00644"},"PeriodicalIF":2.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143726104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and implementation of a module for teaching and research on SCRs for power electronics

IF 2

HardwareX Pub Date : 2025-03-22 DOI: 10.1016/j.ohx.2025.e00640

Jhon Bayona, Nancy Gélvez, Helbert Espitia

引用次数: 0

Microscope Upcycling: Transforming legacy microscopes into automated cloud-integrated imaging systems

IF 2

HardwareX Pub Date : 2025-03-19 DOI: 10.1016/j.ohx.2025.e00637

Drew Ehrlich , Yohei Rosen , David F. Parks , Kivilcim Doganyigit , Ryan Fenimore , Samira Vera-Choqqueccota , Sebastian Hernandez , Anna Toledo , David Haussler , Sri Kurniawan , Mircea Teodorescu

引用次数: 0

Flexible hardware for teaching and research in renewable energy and off-grid microgrids

IF 2

HardwareX Pub Date : 2025-03-18 DOI: 10.1016/j.ohx.2025.e00636

Cristian Escudero-Quintero, Juan Pablo Guzman-Rodriguez, Juan Pablo Villegas-Ceballos, Elkin Edilberto Henao-Bravo, Daniel Gonzalez-Montoya

{"title":"Flexible hardware for teaching and research in renewable energy and off-grid microgrids","authors":"Cristian Escudero-Quintero, Juan Pablo Guzman-Rodriguez, Juan Pablo Villegas-Ceballos, Elkin Edilberto Henao-Bravo, Daniel Gonzalez-Montoya","doi":"10.1016/j.ohx.2025.e00636","DOIUrl":"10.1016/j.ohx.2025.e00636","url":null,"abstract":"<div><div>Microgrids are an active research field due to their integration of renewable and non-renewable energy sources alongside energy storage systems to supply both DC and AC loads. While existing studies extensively explore hierarchical control structures, focusing on algorithm design and optimization, practical implementation remains challenging due to system complexity. This paper presents the development of a low-power microgrid hardware platform based on power converters and controllers, enabling experimental validation of the second and third levels of hierarchical control. The platform enables real-time energy management using FPPT algorithms while providing an intuitive graphical interface for data visualization and system monitoring. Experimental results confirm the system’s capability of dynamically managing energy flows, ensuring stable operation under varying load conditions. The system demonstrates reliable operation handling loads of up to 100 W, with scalability to 200 W, providing an effective tool for testing and research in microgrid control strategies.</div></div>","PeriodicalId":37503,"journal":{"name":"HardwareX","volume":"22 ","pages":"Article e00636"},"PeriodicalIF":2.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143706131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and fabrication of a 3D-printed drone-integrated winching system

IF 2

HardwareX Pub Date : 2025-03-18 DOI: 10.1016/j.ohx.2025.e00642

William Crowe, Benicio Costales, Kyle Luthy

引用次数: 0

Open-source portable solar power supply for plasma generators

IF 2

HardwareX Pub Date : 2025-03-17 DOI: 10.1016/j.ohx.2025.e00641

Md Motakabbir Rahman , Wei Zhang , Ying Zheng , Joshua M. Pearce

{"title":"Open-source portable solar power supply for plasma generators","authors":"Md Motakabbir Rahman , Wei Zhang , Ying Zheng , Joshua M. Pearce","doi":"10.1016/j.ohx.2025.e00641","DOIUrl":"10.1016/j.ohx.2025.e00641","url":null,"abstract":"<div><div>Non thermal plasmas created by dielectric barrier discharge can break down methane directly to constituent elements without carbon dioxide emissions to produce a high-purity hydrogen and byproduct of solid carbon. To fulfill the environmental promise of plasma generators they must be powered with sustainable energy sources such as solar photovoltaic (PV) systems. There is a need to overcome the limitations of past approaches to power plasma systems to develop a completely open source solar PV system design capable of providing the necessary high-quality power. To overcome this research gap, this article provides a customizable open-source PV-powered design for plasma generators, which allows off-grid operation. This design facilitates the modification of existing lab-grade plasma generator setups into portable solar-powered systems. The open source inverter provides for AC loads at both 120 V and 230 V and has an acceptable total harmonic distortion of 3.58 %. The system was successfully able to power plasma generation and produce high quality plasmas with methane. Plasma generators are highly sensitive to any input voltage variation and power oscillation and the open source system provided higher power applied to the plasma reactor, which resulted in increased CH<sub>4</sub> conversion by 60.5 % and H<sub>2</sub> production 44.7 % compared to grid supply.</div></div>","PeriodicalId":37503,"journal":{"name":"HardwareX","volume":"22 ","pages":"Article e00641"},"PeriodicalIF":2.0,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Autonomous water sampling and quality monitoring in remote locations: A novel approach using a remote-controlled boat

IF 2

HardwareX Pub Date : 2025-03-08 DOI: 10.1016/j.ohx.2025.e00634

Ashish Shukla , Robert Ross , Bishakh Bhattacharya , Alex Stumpf

{"title":"Autonomous water sampling and quality monitoring in remote locations: A novel approach using a remote-controlled boat","authors":"Ashish Shukla , Robert Ross , Bishakh Bhattacharya , Alex Stumpf","doi":"10.1016/j.ohx.2025.e00634","DOIUrl":"10.1016/j.ohx.2025.e00634","url":null,"abstract":"<div><div>Water quality varies widely across the globe due to numerous sources of contamination. This disparity emphasizes the urgent need to achieve UN Sustainable Development Goal 6, which aims to ensure universal access to clean water and sanitation. Traditional water monitoring approaches often come with high costs, limited time fidelity, and the absence of territorial dimensionality (often at fixed points). These approaches rely on either manual sampling or stationary buoy platforms, which are labour-intensive and cannot be easily accessed to retrieve water samples (for stationary systems). This paper presents an inexpensive, modified remote-controlled (RC) boat based water monitoring system that is open source, compact, robust, highly adaptable and capable of traversing various riverine environments to collect water and perform samples anywhere within the water body. The solution enhances data quality, facilitates laboratory microbiological investigation, and provides combined water quality data and water samples for comprehensive analysis. The platform comprises a remotely operated boat equipped with lab-grade sensors (pH, dissolved oxygen, conductivity, ORP, temperature) and a sonar depth sensor. It efficiently collects high-resolution spatio-temporal water-quality data with a high accuracy RTK-GPS system and allows eight separate water samples to be collected at different locations. The sensors were validated using lab-grade equipment, followed by successful field testing that confirmed their accuracy and reliability in real-world conditions.</div></div>","PeriodicalId":37503,"journal":{"name":"HardwareX","volume":"22 ","pages":"Article e00634"},"PeriodicalIF":2.0,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143706132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A compact electromagnetic syringe stirrer and temperature controller for the reliable dispensing of living cells and microparticles

IF 2

HardwareX Pub Date : 2025-03-04 DOI: 10.1016/j.ohx.2025.e00638

Maryamsadat Ghoreishi , Giovanna Peruzzi , Lucia Iafrate , Gianluca Cidonio , Noemi D’Abbondanza , Giancarlo Ruocco , Marco Leonetti , Riccardo Reale

{"title":"A compact electromagnetic syringe stirrer and temperature controller for the reliable dispensing of living cells and microparticles","authors":"Maryamsadat Ghoreishi , Giovanna Peruzzi , Lucia Iafrate , Gianluca Cidonio , Noemi D’Abbondanza , Giancarlo Ruocco , Marco Leonetti , Riccardo Reale","doi":"10.1016/j.ohx.2025.e00638","DOIUrl":"10.1016/j.ohx.2025.e00638","url":null,"abstract":"<div><div>Lab-on-chip technologies frequently require biological samples, such as cells or microorganisms, to be maintained inside a syringe for prolonged periods of time during operations. Challenges include preventing cell sedimentation, ensuring cell viability, and maintaining buffer rheological properties (i.e. viscosity and density) constant, particularly in applications like 3D bioprinting and diagnostic assays. To address these challenges, we have developed the Syringe Electromagnetic Controller (SEC), an integrated system capable of simultaneously stirring and thermoregulating samples inside a syringe. SEC prevents sedimentation through the cyclic movement of a magnet actuated by an electromagnetic field, while maintaining a stable temperature (within ± 0.5 °C from a set-point) with a feedback loop. The system is compact, cost-effective, and easily integrated into various setups. Experimental validation shows that SEC effectively keeps living cells in suspension and at a constant temperature without compromising cell viability. Thus, we have ultimately demonstrated the functionality of SEC as a versatile solution for enhancing the reliability of lab-on-chip applications.</div></div>","PeriodicalId":37503,"journal":{"name":"HardwareX","volume":"22 ","pages":"Article e00638"},"PeriodicalIF":2.0,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143619150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0