HardwareX最新文献_第6页

The Open SprayBot: A high-throughput paper spray mass spectrometry platform for disease screening 开放喷雾机器人：用于疾病筛查的高通量纸喷雾质谱平台

IF 2

HardwareX Pub Date : 2024-06-30 DOI: 10.1016/j.ohx.2024.e00551

Nancy Shyrley García-Rojas , Héctor Guillén-Alonso , Scott MacKay , Claudia Torres-Calzada , Leonardo Daniel Soto-Rodriguez , Robert Winkler , David S. Wishart

{"title":"The Open SprayBot: A high-throughput paper spray mass spectrometry platform for disease screening","authors":"Nancy Shyrley García-Rojas , Héctor Guillén-Alonso , Scott MacKay , Claudia Torres-Calzada , Leonardo Daniel Soto-Rodriguez , Robert Winkler , David S. Wishart","doi":"10.1016/j.ohx.2024.e00551","DOIUrl":"https://doi.org/10.1016/j.ohx.2024.e00551","url":null,"abstract":"<div><p>Newborn disease screening increases survival, improves quality of life and reduces treatment costs for healthcare systems. Mass spectrometry (MS) is an effective method for metabolic screening. However, conventional analytical methods require biofluid handling and cooling conditions during transport, making the logistics difficult and expensive, especially for remote regions. ’Paper-spray’ (PS) ionization generates a charged solvent spray from samples deposited on paper strips. Therefore, samples can be applied on a suitable matrix and shipped as dried spots to diagnostic laboratories with standard postal or messenger services. We built a robotic platform, the ’Open SprayBot’, to automatically analyze paper-deposited samples via PS-MS and increase the sample throughput. The system is operated via RUMBA32 and Arduino Mega boards. A commercial syringe pump and power supply provide solvent application and electrical current required for PS-MS. The usability of the Open SprayBot was demonstrated by quantifying palmitoyl-l-carnitine, a common biomarker in newborn screening.</p></div>","PeriodicalId":37503,"journal":{"name":"HardwareX","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2024-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2468067224000452/pdfft?md5=a074d019adac06613ad70d177839978c&pid=1-s2.0-S2468067224000452-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141541607","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

Cost-effective, open-source light shutters with Arduino control 采用 Arduino 控制的低成本、开源百叶窗

IF 2

HardwareX Pub Date : 2024-06-27 DOI: 10.1016/j.ohx.2024.e00548

Mathias S. Fischer, Martin C. Fischer

{"title":"Cost-effective, open-source light shutters with Arduino control","authors":"Mathias S. Fischer, Martin C. Fischer","doi":"10.1016/j.ohx.2024.e00548","DOIUrl":"https://doi.org/10.1016/j.ohx.2024.e00548","url":null,"abstract":"<div><p>In optical experiments, shutters are devices that open or close a path of light. They are often used to limit the duration of light exposure onto a target or onto a detector to reduce possible light-induced damage. Many commercial shutters are available for different applications – some provide very fast opening and closing times, some can handle large optical powers, and others allow for fail-safe operation. Many of these devices are costly and offer limited control options. Here we provide an open-source design for a low-cost, general purpose shutter system based on ubiquitous actuators (servo motors or solenoids) that are connected to an Arduino-based controller. Several shutters can be controlled by one controller, further reducing system cost. The state of the shutters can be controlled via a display built into the controller, by serial commands via USB, or by electrical control lines. The use of a microcontroller makes the shutter controller adaptable – only control options that are used need to be included, and the design accommodates a selection of display and actuator options. We provide designs for all required components, including 3D print files for the actuator holders and cases, the Arduino code, libraries for serial communication (C and python), and example graphical user interfaces for testing.</p></div>","PeriodicalId":37503,"journal":{"name":"HardwareX","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2468067224000427/pdfft?md5=02fce5019067842722b3fd9fb7f6343c&pid=1-s2.0-S2468067224000427-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141595289","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

Spin coating on a budget: A 3D-Printed all-mechanical alternative for cost-effective thin-film deposition 低成本旋转镀膜：用于经济高效薄膜沉积的三维打印全机械替代方案

IF 2

HardwareX Pub Date : 2024-06-25 DOI: 10.1016/j.ohx.2024.e00547

Apostolos Kalafatis , Lazaros Theofylaktos , Thomas Stergiopoulos

{"title":"Spin coating on a budget: A 3D-Printed all-mechanical alternative for cost-effective thin-film deposition","authors":"Apostolos Kalafatis , Lazaros Theofylaktos , Thomas Stergiopoulos","doi":"10.1016/j.ohx.2024.e00547","DOIUrl":"https://doi.org/10.1016/j.ohx.2024.e00547","url":null,"abstract":"<div><p>Spin coating stands out as the most employed thin-film deposition technique across a variety of scientific fields. Particularly in the past two decades, spin coaters have become increasingly popular due to the emergence of solution-processed semiconductors such as quantum dots and perovskites. However, acquiring commercial spin coaters from reputable suppliers remains a significant financial burden for many laboratories, particularly for smaller research or educational facilities. Prompted by the simple mechanical principles of the device, in this work, we present a 3D-printed analogue that can be printed and assembled in under 10 h and costs less than 5 euros per device. The operating principle is fully mechanical since the rotating motion is induced by gas flow. It does not require any additional components such as DC motors, motor drivers, circuitry or software and thus it can be fully operational off the grid. Additionally, the gas flow generates a purging effect that was found to be rather advantageous for film formation. To prove the effectiveness of this device, we have employed it to fabricate planar thin-film antimony sulfide (Sb<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>S<span><math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math></span>) solar cells. The optoelectronic characteristics of solar cells revealed noteworthy improvements, particularly in terms of repeatability, when compared to those fabricated with a commercial spin coater.</p></div>","PeriodicalId":37503,"journal":{"name":"HardwareX","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2468067224000415/pdfft?md5=d7ed86757b39b824cfab5fb316ccc443&pid=1-s2.0-S2468067224000415-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141484336","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 collaborative smart plugs for energy management 用于能源管理的开放式协作智能插头

IF 2

HardwareX Pub Date : 2024-06-24 DOI: 10.1016/j.ohx.2024.e00549

Almir Neto , Luis Gomes , Zita Vale

{"title":"Open collaborative smart plugs for energy management","authors":"Almir Neto , Luis Gomes , Zita Vale","doi":"10.1016/j.ohx.2024.e00549","DOIUrl":"https://doi.org/10.1016/j.ohx.2024.e00549","url":null,"abstract":"<div><p>Given the growth of domotics and home automation, there is a need to use smart devices that integrate energy management systems and enable the automation of the environment. Considering the need to study the relationship between the environmental parameters in which the equipment is located and the energy parameters, an Environmental Awareness smart Plug (EnAPlug) is proposed with the application of machine learning (Tiny ML).This article presents a demonstration of EnAPlug applied to a refrigerator for predictions on internal humidity and activation motor for 5 min-ahead prediction on its operation, i.e., turning on or off. The two models for forecasting humidity presented Root Mean Squared Error (RMSE) results of 0.055 and 0.058 and a Coefficient of determination (r2 score) of 0.97 and 0.99, respectively. For the motor activation prediction, the results obtained were an accuracy of 94.74% and 94.84%, an F1 score of 0.97 for OFF, 0.94 for ON for Forecast 1 and 0.97 for OFF and 0.93 for ON for Forecast 2. Although the prototype does not have commercial purposes, what differs from existing smart plugs is the option to store data locally. The results are promising, as it allows for better energy management with implementation of machine learning.</p></div>","PeriodicalId":37503,"journal":{"name":"HardwareX","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2468067224000439/pdfft?md5=e5aa4a205a113e154480157d4ebf84fd&pid=1-s2.0-S2468067224000439-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141484337","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

Economically viable electromechanical tensile testing equipment for stretchable sensor assessment 用于评估可拉伸传感器的经济可行的机电拉伸测试设备

IF 2

HardwareX Pub Date : 2024-06-21 DOI: 10.1016/j.ohx.2024.e00546

Ardi Wiranata , Witnadi Dardjat Premiaji , Widya Kartika , Burhan Febrinawarta , Zebing Mao , Hifni Mukhtar Ariyadi , Nyayu Aisyah , Ryan Anugrah Putra , Kevin G.H. Mangunkusumo , Muhammad Akhsin Muflikhun

{"title":"Economically viable electromechanical tensile testing equipment for stretchable sensor assessment","authors":"Ardi Wiranata , Witnadi Dardjat Premiaji , Widya Kartika , Burhan Febrinawarta , Zebing Mao , Hifni Mukhtar Ariyadi , Nyayu Aisyah , Ryan Anugrah Putra , Kevin G.H. Mangunkusumo , Muhammad Akhsin Muflikhun","doi":"10.1016/j.ohx.2024.e00546","DOIUrl":"https://doi.org/10.1016/j.ohx.2024.e00546","url":null,"abstract":"<div><p>The growing interest in soft robotics increases the demand for stretchable sensors. The high performance of stretchable sensors depends much on the linearity, reliability and hysteresis of the stretchable conductive materials. In the applications of conductive materials such as in dielectric elastomer actuators, a stretchable conductive material should maintain the conductivity while sustaining large and multiple cycles of stretch and release tests. To understand the stretchable electrode quality, researchers should perform an electromechanical test. However, researchers require a high investment cost to use a professional type of electromechanical tensile test. In this research, we proposed an economically viable version of the Do-it-yourself (DIY) electromechanical tensile test (EMTT) to resolve the high investment cost problems. The DIY-EMTT is based on the Arduino-nano module. We integrate the load cell, displacement sensor, motor linear stage and DIY resistance meter. We can use the DIY mechanism to suppress the instrumental cost from thousands to hundreds of dollars. Furthermore, we provide a step-by-step guide to build the DIY-EMTT. We expect our DIY-EMTT to boost stretchable sensor development in soft robotics.</p></div>","PeriodicalId":37503,"journal":{"name":"HardwareX","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2024-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2468067224000403/pdfft?md5=9a69e4c68c937fb445026e8d8cd93acc&pid=1-s2.0-S2468067224000403-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141484338","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-source and low-cost miniature microscope for on-site fluorescence detection 用于现场荧光检测的开源低成本微型显微镜

IF 2.2

HardwareX Pub Date : 2024-06-15 DOI: 10.1016/j.ohx.2024.e00545

Michio Kawai , Haruka Oda , Hisatoshi Mimura , Toshihisa Osaki , Shoji Takeuchi

{"title":"Open-source and low-cost miniature microscope for on-site fluorescence detection","authors":"Michio Kawai , Haruka Oda , Hisatoshi Mimura , Toshihisa Osaki , Shoji Takeuchi","doi":"10.1016/j.ohx.2024.e00545","DOIUrl":"10.1016/j.ohx.2024.e00545","url":null,"abstract":"<div><p>The development of a compact and affordable fluorescence microscope can be a formidable challenge for growing needs in on-site testing and detection of fluorescent labeled biological systems, especially for those who specialize in biology rather than in engineering. In response to such a situation, we present an open-source miniature fluorescence microscope using Raspberry Pi. Our fluorescence microscope, with dimensions of 19.2 × 13.6 × 8.2 cm<sup>3</sup> (including the display, computer, light-blocking case, and other operational requirements), not only offers cost-effectiveness (costing less than $500) but is also highly customizable to meet specific application needs. The 12.3-megapixel Raspberry Pi HQ Camera captures high-resolution imagery, while the equipped wide-angle lens provides a field of view measuring 21 × 15 mm<sup>2</sup>. The integrated wireless LAN in the Raspberry Pi, along with software-controllable high-powered fluorescence LEDs, holds potential for a wide range of applications. This open-source fluorescence microscope offers biohybrid sensor developers a versatile tool to streamline unfamiliar mechanical design tasks and open new opportunities for on-site fluorescence detections.</p></div>","PeriodicalId":37503,"journal":{"name":"HardwareX","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2468067224000397/pdfft?md5=18dd140f976bac9efd53aa37b67dcb27&pid=1-s2.0-S2468067224000397-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141408108","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

mSLAb – An open-source masked stereolithography (mSLA) bioprinter mSLAb - 一种开源的掩膜立体光刻 (mSLA) 生物打印机

IF 2.2

HardwareX Pub Date : 2024-06-10 DOI: 10.1016/j.ohx.2024.e00543

Benedikt K. Kaufmann , Matthias Rudolph , Markus Pechtl , Geronimo Wildenburg , Oliver Hayden , Hauke Clausen-Schaumann , Stefanie Sudhop

{"title":"mSLAb – An open-source masked stereolithography (mSLA) bioprinter","authors":"Benedikt K. Kaufmann , Matthias Rudolph , Markus Pechtl , Geronimo Wildenburg , Oliver Hayden , Hauke Clausen-Schaumann , Stefanie Sudhop","doi":"10.1016/j.ohx.2024.e00543","DOIUrl":"https://doi.org/10.1016/j.ohx.2024.e00543","url":null,"abstract":"<div><p>3D bioprinting is a tissue engineering approach using additive manufacturing to fabricate tissue equivalents for regenerative medicine or medical drug testing. For this purpose, biomaterials that provide the essential microenvironment to support the viability of cells integrated directly or seeded after printing are processed into three-dimensional (3D) structures. Compared to extrusion-based 3D printing, which is most commonly used in bioprinting, stereolithography (SLA) offers a higher printing resolution and faster processing speeds with a wide range of cell-friendly materials such as gelatin- or collagen-based hydrogels and SLA is, therefore, well suited to generate 3D tissue constructs.</p><p>While there have been numerous publications of conversions and upgrades for extrusion-based printers, this is not the case for state-of-the-art SLA technology in bioprinting. The high cost of proprietary printers severely limits teaching and research in SLA bioprinting. With mSLAb, we present a low-cost and open-source high-resolution 3D bioprinter based on masked SLA (mSLA). mSLAb is based on an entry-level (€350) desktop mSLA printer (Phrozen Sonic Mini 4 K), equipped with temperature control and humidification of the printing chamber to enable the processing of cell-friendly hydrogels. Additionally, the build platform was redesigned for easy sample handling and microscopic analysis of the printed constructs. All modifications were done with off-the-shelf hardware and in-house designed 3D printed components, printed with the same printer that was being modified.</p><p>We validated the system by printing macroscopic porous scaffolds as well as hollow channels from gelatin-based hydrogels as representative structures needed in tissue engineering.</p></div>","PeriodicalId":37503,"journal":{"name":"HardwareX","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2468067224000373/pdfft?md5=ec317346b50888f0400eb86d4e8c357b&pid=1-s2.0-S2468067224000373-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141328369","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

FriiTriga, a triggered controller with an optical beam shutter using a hard disk drive voice-coil actuator FriiTriga，一种使用硬盘驱动器音圈致动器的带光学光束快门的触发式控制器

IF 2.2

HardwareX Pub Date : 2024-06-07 DOI: 10.1016/j.ohx.2024.e00542

Dam-Bé L. Douti, Chérif Ouro-Wassara, Essohana Mabafei

{"title":"FriiTriga, a triggered controller with an optical beam shutter using a hard disk drive voice-coil actuator","authors":"Dam-Bé L. Douti, Chérif Ouro-Wassara, Essohana Mabafei","doi":"10.1016/j.ohx.2024.e00542","DOIUrl":"https://doi.org/10.1016/j.ohx.2024.e00542","url":null,"abstract":"<div><p>We present in this article the complete setup to build a triggered controller with a mechanical optical shutter. The system is a low cost, Do-It-Yourself, and easy to implement setup with three functionalities: Manual mode, direct mode with TTL signal command and Triggered mode with a TTL signal command. Our setup is primarily intended to be integrated in optical setup where one needs to control the opening time of a light path, but can be used also for any other setup where one wants to send a TTL signal to command another subsystem (in our case the shutter is that subsystem). The shutter used here is hard disk drive voice-coil actuator, which was already demonstrated to have interesting potentialities to be a mechanical shutter.</p><p>In the Manual mode, this setup achieves an opening and closing time of 3 ms. In Direct mode with TTL signal command, the setup has a delay response time of 19 ms and a minimum open pulse time of 23 ms. This low cost device which can be made with less than 50€, have similar characteristics with commercial ones which can be twenty times more expensive.</p></div>","PeriodicalId":37503,"journal":{"name":"HardwareX","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2468067224000361/pdfft?md5=2caef0e9157e28a65c774adc62ab45fe&pid=1-s2.0-S2468067224000361-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141322635","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 low-cost, portable device for the study of the malaria parasite’s growth inhibition via microwave exposure 用于研究通过微波照射抑制疟原虫生长的低成本便携式设备

IF 2.2

HardwareX Pub Date : 2024-06-06 DOI: 10.1016/j.ohx.2024.e00540

Esteban Rua , Lorena Coronado , Carlos A. Donado Morcillo , Ricardo Correa , Lina Solís , Carmenza Spadafora , Alejandro Von Chong

{"title":"A low-cost, portable device for the study of the malaria parasite’s growth inhibition via microwave exposure","authors":"Esteban Rua , Lorena Coronado , Carlos A. Donado Morcillo , Ricardo Correa , Lina Solís , Carmenza Spadafora , Alejandro Von Chong","doi":"10.1016/j.ohx.2024.e00540","DOIUrl":"https://doi.org/10.1016/j.ohx.2024.e00540","url":null,"abstract":"<div><p>Recently, a novel method for the growth inhibition of malaria parasites using microwaves was proposed. However, the apparatuses used to demonstrate this method are high-cost and immovable, hindering the progression in this field of research, which is still in its early stages. This paper presents the redesign, construction, and validation of an equivalent system, converting it into a portable and low-cost system, capable of replacing the existing one. The proposed system is mainly composed of an RF generator (MAX2870), an RF amplifier (SKYWORKS 66292-11) and a graphical user interface. Likewise, the RF applicator proposed by the original study was redesigned, resulting in a five-fold improvement in return loss. The obtained results indicate that the proposed system achieves 90% parasite growth inhibition, matching the performance of its counterpart at less than 1% of its cost. These results represent a breakthrough for the creation of smaller, enhanced devices that open new possibilities for an alternative treatment to combat this devastating disease.</p></div>","PeriodicalId":37503,"journal":{"name":"HardwareX","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2468067224000348/pdfft?md5=bf21b4a594515c26c17691b57adc7241&pid=1-s2.0-S2468067224000348-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141322661","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

Real-time ultrasonic water level IoT sensor for in-situ soil permeability testing 用于原位土壤渗透性测试的实时超声波水位物联网传感器

IF 2.2

HardwareX Pub Date : 2024-06-06 DOI: 10.1016/j.ohx.2024.e00541

Pablo Blanco-Gómez , Alexis Mateu-Belloch , José Luis Jiménez-García , Antoni J. Salas-Cantarellas , Juan J. Pieras-Company , Ernest Santamaría-Casals

{"title":"Real-time ultrasonic water level IoT sensor for in-situ soil permeability testing","authors":"Pablo Blanco-Gómez , Alexis Mateu-Belloch , José Luis Jiménez-García , Antoni J. Salas-Cantarellas , Juan J. Pieras-Company , Ernest Santamaría-Casals","doi":"10.1016/j.ohx.2024.e00541","DOIUrl":"https://doi.org/10.1016/j.ohx.2024.e00541","url":null,"abstract":"<div><p>Soil permeability tests require a time series of water level measurements to determine system losses, including both infiltration and evaporation. Laboratory measurements of flow are standardised by international regulations such as ASTM International, ISO or UNE, but field measurements are not as well described and in some cases may require definition and specification of test conditions. This is the case for geosynthetic clay liner (GCL) products, where permeability is assessed by a laboratory measurement using a flexible wall permeameter as defined in standard test method D 5887-04. This method is not able to evaluate the performance of such products in the field and therefore cannot guarantee their ability to be used for the repair of landfill liner overlays. For this reason, we have defined a field test in a confined steel ring and developed a real-time ultrasonic IoT device to evaluate water losses over a period of time. The test method was applied in Mallorca (Spain) and as a result the quality of a landfill cover repair solution was evaluated, the corresponding civil works were carried out and the basis for future field measurements of soil permeability tests on different materials and conditions was established.</p></div>","PeriodicalId":37503,"journal":{"name":"HardwareX","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S246806722400035X/pdfft?md5=870ef9afe03ad0eb6cc6d4848d0929c4&pid=1-s2.0-S246806722400035X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141322662","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