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- Publication . Thesis . 2022Open Access EnglishAuthors:Hector, Andrew;Hector, Andrew;
handle: 10214/27403
Publisher: University of GuelphCountry: CanadaFour trials across Ontario were sampled to evaluate the effects of best management practices (BMP) on six soil health indicators (SHI). As well, the use of near infrared (NIR) and mid infrared (MIR) spectroscopy to predict SHI was explored at site and regional levels. Lastly, MIR spectroscopy was utilized to identify differences in soils under differing BMPs. The study found no-tillage (NT) improved SHI values at two of three sites. Inclusion of cover crops and small grains in rotation improved SHI values at one site, while no significant differences were found at two sites. The study found that MIR models predicted SHI better than NIR models. As well, the use of competitive adaptive reweighted sampling (CARS) feature selection improved model performance compared to full spectra models. Lastly, differences were found between MIR spectra from soils under NT and moldboard plow treatments and between annual versus perennial crop rotations. Ontario Agri-Food Innovation Alliance
add Add to ORCIDPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product. - Publication . 2022Open AccessAuthors:Lacalle Úbeda, Ignacio;Lacalle Úbeda, Ignacio;
handle: 10251/190634
Publisher: Universitat Politecnica de ValenciaCountry: Spain[ES] El Internet de las Cosas (IoT) ha experimentado un gran crecimiento en los últimos años. El incremento en el número de dispositivos, una mayor miniaturización de la capacidad de computación y las técnicas de virtualización, han favorecido su adopción en la industria y en otros sectores. Asimismo, la introducción de nuevas tecnologías (como la Inteligencia Artificial, el 5G, el Tactile Internet o la Realidad Aumentada) y el auge del edge computing preparan el terreno, y formulan los requisitos, para lo que se conoce como Internet de las Cosas de Nueva Generación (NGIoT). Estos avances plantean nuevos desafíos tales como el establecimiento de arquitecturas que cubran dichas necesidades y a la vez resulten flexibles, escalables y prácticas para implementar servicios que aporten valor a la sociedad. En este sentido, el IoT puede resultar un elemento clave para el establecimiento de políticas y la toma de decisiones. Una herramienta muy útil para ello es la definición y cálculo de indicadores compuestos, que representan un impacto en un fenómeno real a través de un único valor. La generación de estos indicadores es un aspecto promovido por entidades oficiales como la Unión Europea, aunque su automatización y uso en entornos de tiempo real es un campo poco explorado. Este tipo de índices deben seguir una serie de operaciones matemáticas y formalidades (normalización, ponderación, agregación¿) para ser considerados válidos. Esta tesis doctoral plantea la unión de ambos campos en alza, proponiendo una arquitectura de Internet de las Cosas de nueva generación orientada al servicio de cálculo y predicción de indicadores compuestos. Partiendo de la experiencia del candidato en proyectos de investigación europeos y regionales, y construyendo sobre tecnologías open source, se ha incluido el diseño, desarrollo e integración de los módulos de dicha arquitectura (adquisición de datos, procesamiento, visualización y seguridad) como parte de la tesis. Dichos planteamientos e implementaciones se han validado en cinco escenarios diferentes, cubriendo cinco índices compuestos en entornos con requisitos dispares siguiendo una metodología diseñada durante este trabajo. Los casos de uso están centrados en aspectos de sostenibilidad en entornos urbano y marítimo-portuario, pero se ha destacado que la solución puede ser extrapolada a otros sectores ya que ha sido diseñada de una manera agnóstica. El resultado de la tesis ha sido, además, analizado desde el punto de vista de transferencia tecnológica. Se ha propuesto la formulación de un producto, así como una posible financiación en fases de madurez más avanzadas y su potencial explotación como elemento comercializable [CA] La Internet de les Coses (IoT) ha experimentat un gran creixement en els últims anys. L'increment en el nombre de dispositius, una major miniaturització de la capacitat de computació i les tècniques de virtualització, han afavorit la seua adopció en la indústria i en altres sectors. Així mateix, la introducció de noves tecnologies (com la Intel·ligència Artificial, el 5G, la Internet Tàctil o la Realitat Augmentada) i l'auge del edge computing preparen el terreny, i formulen els requisits, per al que es coneix com a Internet de les Coses de Nova Generació (NGIoT). Aquests avanços plantegen nous desafiaments com ara l'establiment d'arquitectures que cobrisquen aquestes necessitats i resulten, alhora, flexibles, escalables i pràctiques per a implementar serveis que aporten valor a la societat. Ací, el IoT pot resultar un element clau per a l'establiment de polítiques i la presa de decisions. Una eina molt útil en aquest sentit és la definició i càlcul d'indicadors compostos, que representen un impacte en un fenomen real a través d'un únic valor. La generació d'aquests indicadors és un aspecte promogut per entitats oficials com la Unió Europea, encara que la seua automatització i ús en entorns de temps real és un camp poc explorat. Aquest tipus d'índexs han de seguir una sèrie d'operacions matemàtiques i formalitats (normalització, ponderació, agregació¿) per a ser considerats vàlids. Aquesta tesi doctoral planteja la unió de tots dos camps en alça, proposant una arquitectura d'Internet de les Coses de nova generació orientada al servei de càlcul i predicció d'indicadors compostos. Partint de l'experiència del candidat en projectes d'investigació europeus i regionals, i construint sobre tecnologies open source, s'ha inclòs el disseny, desenvolupament i integració dels mòduls d'aquesta arquitectura (adquisició de dades, processament, visualització i seguretat) com a part de la tesi. Aquests plantejaments i implementacions s'han validat en cinc escenaris diferents, cobrint cinc índexs compostos en entorns amb requisits dispars seguint una metodologia dissenyada durant aquest treball. Els casos d'ús estan centrats en aspectes de sostenibilitat en entorns urbà i marítim-portuari, però s'ha destacat que la solució pot ser extrapolada a altres sectors ja que ha sigut dissenyada d'una manera agnòstica. El resultat de la tesi ha sigut, a més, analitzat des del punt de vista de transferència tecnològica. S'ha proposat la formulació d'un producte, així com un possible finançament en fases de maduresa més avançades i la seua potencial explotació com a element comercialitzable [EN] The Internet of Things (IoT) has experienced tremendous growth in recent years. The increase in the number of devices, greater miniaturization of computing capacity and virtualization techniques have favored its adoption in industry and other sectors. Likewise, the introduction of new technologies (such as Artificial Intelligence, 5G, Tactile Internet or Augmented Reality), together with the rise of edge computing, are paving the way, and formulating the requirements, for what is known as the Next Generation Internet of Things (NGIoT). These advances pose new challenges such as the establishment of proper architectures that meet those needs and, at the same time, are flexible, scalable, and practical for implementing services that bring value to society. In this sense, IoT could be a key element for policy and decision making. A very useful tool for this is the definition and calculation of composite indicators, which represent an impact on a real phenomenon through a single value. The generation of these indicators is an aspect promoted by official entities such as the European Union, although their automation and use in real-time environments is a rather uncharted research field. This type of indexes must follow a series of mathematical operations and formalities (normalization, weighting, aggregation...) to be considered valid. This doctoral thesis proposes the union of both fields, proposing a new generation Internet of Things architecture oriented to the calculation and prediction of composite indicators. Based on the candidate's experience in European and regional research projects, and building on open source technologies, the design, development and integration of the modules of such architecture (data acquisition, processing, visualization and security) has been included as part of the thesis. These approaches and implementations have been validated in five different scenarios, covering five composite indexes in environments with disparate requirements following a methodology designed during this work. The use cases are focused on sustainability aspects in urban and maritime-port environments, but it has been highlighted that the solution can be extrapolated to other sectors as it has been designed in an agnostic way. The result of the thesis has also been analyzed from the point of view of technology transfer. A tentative product definition has been formulated, as well as a possible financing in more advanced stages of maturity and its potential exploitation as a marketable element
Average popularityAverage popularity In bottom 99%Average influencePopularity: Citation-based measure reflecting the current impact.Average influence In bottom 99%Influence: Citation-based measure reflecting the total impact.add Add to ORCIDPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product. - Publication . Thesis . 2022Open Access EnglishAuthors:Brown, Austin;Brown, Austin;
handle: 10214/27434
Publisher: University of GuelphCountry: CanadaThe mobilization of scientific knowledge for agricultural application has long been supported by Radio broadcast in Africa. Digital radio and mobile phone integration are becoming linked with radio and physical extension services, known as Radio+. Farm Radio International provides radio extension services in Ghana and participated in a research attachment for this study. There is a need to improve the content and delivery of agricultural extension services. The study utilized Collaborative Inquiry interviews, a process involving semi-structured, in-depth and interactive discussions. Farm Radio International employees were the interview demographic. The interview data was analyzed using a deductive thematic coding process using NVivo. Issues with funding and capacity, participatory processes, and digital development consistently effect all sectors of agricultural extension in Ghana. Based on these results, the recommendation provided is the development of a digital extension application to serve as a mobile communications and information hub to farmers in rural Ghana.
add Add to ORCIDPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product. - Publication . Thesis . 2022Open Access EnglishAuthors:Craig, Valerie;Craig, Valerie;
handle: 10214/27391
Publisher: University of GuelphCountry: CanadaMaize black layer (BL) is the developmental stage where plants reach physiological maturity, which is a desirable trait, but phenotyping this trait is time consuming and costly. Any tool enabling high-throughput phenotyping of BL would be an invaluable asset for developing or maintaining short-season maize hybrids. This thesis investigated the potential of using remote sensing (RS) technologies to detect BL. The spectral signatures of 16 short-season maize hybrids were captured using a ground-based hyperspectral sensor through the late grain filling period (GFP) which were then used to develop and test vegetation indices (VIs) that correlated with BL formation. Two of these VIs, the normalized green red difference index (NGRDI) and the novel VI.5 were highly accurate, specific, and had spectral curves that match the physiology of maize in the late GFP. These findings suggest that high-throughput phenotyping of maize BL is possible using RS technologies. Natural Sciences and Engineering Research Council (NSERC) Discovery Grant, Natural Sciences and Engineering Research Council (NSERC) Collaborative Research and Development (CRD) grant with the support of Maizex Seeds Inc.
add Add to ORCIDPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product. - Publication . Thesis . 2022Open Access IndonesianAuthors:Millenika, Prayudha;Millenika, Prayudha;Country: Indonesia
Kebutuhan air pada tanaman merupakan hal yang penting bagi kondisi tanaman. Tanaman akan tumbuh dengan baik bila diberi perawatan yang benar, yaitu dengan cara menyiram dengan air yang cukup ketika tanah kering secara teratur serta menjaga kelembapan tanahnya, dan bila tanaman kekurangan atau kelebihan air dapat menyebabkan tanaman tidak tumbuh dengan baik dan bisa saja tanaman akan mati, dari permasalahan tersebut dibangun sebuah alat yang dapat memonitoring kelembapan tanah serta mengontrol penyiraman secara otomatis maupun manual, dengan memanfaatkan teknologi Internet of Things dan aplikasi telegram agar dapat memantau dan mengontrol melalui handphone. Alat ini menggunakan mikrokontroler ESP32 sebagai kontrol utama, yang terhubung dengan telegram. Pemantauan kelembaban tanah dilakukan menggunakan sensor YL-69, nantinya hasil pembacaan akan ditampilkan ke aplikasi telegram dan LCD, untuk penyiraman dapat dilakukan menggunakan aplikasi telegram atau ketika nilai kelembapan tanah kurang dari batas yang ditentukan, maka relay akan aktif untuk menyalakan pompa, untuk buka tutup kanopi, dapat dilakukan menggunakan aplikasi telegram atau melalui pembacaan sensor YL-83 jika terbaca kurang dari 2800, untuk mengecek kapasitas bak air menggunakan sensor ultrasonik HC-SR04. Waktu Respons pengontrolan sistem melalui telegram dipengaruhi oleh koneksi internet. The water requirement is vital for the condition of the plant, by giving the right care makes plants will grow well, regularly watering when the soil is dry and keeping the soil moist, and if the plant lacks or has excess water it causes the plant not to grow properly and the plant may die, from these problems, a tool was built that can monitor soil moisture and control watering automatically or manually, by utilizing Internet of Things technology and the telegram application so that it can monitor and control via mobile phones. This tool uses an ESP32 microcontroller as the main control, which is connected to a telegram, to monitor the soil moisture using the YL-69 sensor, then the reading results will be displayed on the telegram application and LCD, watering can be done using the telegram application or else when the soil moisture value is less than the specified limit, the relay will activate to turn on the pump, to opening and closing the canopy can be done using the telegram application or the YL-83 sensor reading if it reads less than 2800, to check the capacity of the water tank using the ultrasonic sensor HC-SR04. The response time of controlling the system via telegram is affected by the internet connection.
- Publication . Thesis . 2022Open Access EnglishAuthors:Illesinghe, Kasuni Sachithra;Illesinghe, Kasuni Sachithra;
handle: 10214/27352
Publisher: University of GuelphCountry: CanadaSri Lankans use Facebook (Fb) to communicate and share information. The virtual communities of practices (VCoPs) share knowledge and build relationships while encouraging learning and providing opportunities for doing business. Yet, online misinformation circulation threatens the information-sharing and learning process within VCoPs. Therefore, members of Fb communities could be easy targets of misinformation. This study explores how knowledge sharing and learning occur within Fb Virtual Communities in Sri Lanka with the threat of disseminating misinformation. The research findings revealed that while Fb VCoPs share knowledge related to diverse agricultural topics via different mediums to provide solutions to overcome the prevailing challenges in Sri Lankan agriculture, online misinformation threatens the sustainability of VCoPs. State interference, members’ violent behaviour, and lack of diverse content decrease members’ engagement. Research results highlight the importance of tackling the misinformation threat and the necessity of government support in developing the capacities of these VCoPs. 2023-12-31
add Add to ORCIDPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product. - Publication . Thesis . 2022Open Access EnglishAuthors:Mass, Jakob;Mass, Jakob;Country: Estonia
Värkvõrk, ehk Asjade Internet (Internet of Things, lüh IoT) edendab lahendusi nagu nn tark linn, kus meid igapäevaselt ümbritsevad objektid on ühendatud infosüsteemidega ja ka üksteisega. Selliseks näiteks võib olla teekatete seisukorra monitoorimissüsteem. Võrku ühendatud sõidukitelt (nt bussidelt) kogutakse videomaterjali, mida seejärel töödeldakse, et tuvastada löökauke või lume kogunemist. Tavaliselt hõlmab selline lahendus keeruka tsentraalse süsteemi ehitamist. Otsuste langetamiseks (nt milliseid sõidukeid parasjagu protsessi kaasata) vajab keskne süsteem pidevat ühendust kõigi IoT seadmetega. Seadmete hulga kasvades võib keskne lahendus aga muutuda pudelikaelaks. Selliste protsesside disaini, haldust, automatiseerimist ja seiret hõlbustavad märkimisväärselt äriprotsesside halduse (Business Process Management, lüh BPM) valdkonna standardid ja tööriistad. Paraku ei ole BPM tehnoloogiad koheselt kasutatavad uute paradigmadega nagu Udu- ja Servaarvutus, mis tuleviku värkvõrgu jaoks vajalikud on. Nende puhul liigub suur osa otsustustest ja arvutustest üksikutest andmekeskustest servavõrgu seadmetele, mis asuvad lõppkasutajatele ja IoT seadmetele lähemal. Videotöötlust võiks teostada mini-andmekeskustes, mis on paigaldatud üle linna, näiteks bussipeatustesse. Arvestades IoT seadmete üha suurenevat hulka, vähendab selline koormuse jaotamine vähendab riski, et tsentraalne andmekeskust ülekoormamist. Doktoritöö uurib, kuidas mobiilsusega seonduvaid IoT protsesse taoliselt ümber korraldada, kohanedes pidevalt muutlikule, liikuvate seadmetega täidetud servavõrgule. Nimelt on ühendused katkendlikud, mistõttu otsuste langetus ja planeerimine peavad arvestama muuhulgas mobiilseadmete liikumistrajektoore. Töö raames valminud prototüüpe testiti Android seadmetel ja simulatsioonides. Lisaks valmis tööriistakomplekt STEP-ONE, mis võimaldab teadlastel hõlpsalt simuleerida ja analüüsida taolisi probleeme erinevais realistlikes stsenaariumites nagu seda on tark linn. The Internet of Things (IoT) promotes solutions such as a smart city, where everyday objects connect with info systems and each other. One example is a road condition monitoring system, where connected vehicles, such as buses, capture video, which is then processed to detect potholes and snow build-up. Building such a solution typically involves establishing a complex centralised system. The centralised approach may become a bottleneck as the number of IoT devices keeps growing. It relies on constant connectivity to all involved devices to make decisions, such as which vehicles to involve in the process. Designing, automating, managing, and monitoring such processes can greatly be supported using the standards and software systems provided by the field of Business Process Management (BPM). However, BPM techniques are not directly applicable to new computing paradigms, such as Fog Computing and Edge Computing, on which the future of IoT relies. Here, a lot of decision-making and processing is moved from central data-centers to devices in the network edge, near the end-users and IoT sensors. For example, video could be processed in mini-datacenters deployed throughout the city, e.g., at bus stops. This load distribution reduces the risk of the ever-growing number of IoT devices overloading the data center. This thesis studies how to reorganise the process execution in this decentralised fashion, where processes must dynamically adapt to the volatile edge environment filled with moving devices. Namely, connectivity is intermittent, so decision-making and planning need to involve factors such as the movement trajectories of mobile devices. We examined this issue in simulations and with a prototype for Android smartphones. We also showcase the STEP-ONE toolset, allowing researchers to conveniently simulate and analyse these issues in different realistic scenarios, such as those in a smart city. https://www.ester.ee/record=b5525514
- Publication . Thesis . 2022Open AccessAuthors:Jimmy Quang Minh Ngoc Tran;Jimmy Quang Minh Ngoc Tran;Publisher: Ryerson University Library and Archives
When disaster strikes in urban areas, the devastating results are collapsed structures that may contain voids, and trapped people within. To a large extent, the speed with which these victims can be found and extricated determines the likelihood of their survival. Specially trained and equipped emergency first responders are tasked with trying to save their lives by locating and extricating trapped victims from these dangerous environments. Telepresence systems can help first responders search for casualties from a safe location. Most automated search systems intended for use in urban disasters, come in the form of remotely operated robots. This work takes a different approach to telepresence and robotics. This work is an extension of previous work that exploits the intelligence and characteristics of trained search dogs combined with compatible technology and used as components in new kinds of telepresence systems for urban search and rescue (USAR) operations. The Canine Remote Deployment System (CRDS) is a tool that emergency responders can use to deliver critical supplies to trapped victims in rubble using dogs. The first contribution of this work is the development of the bark detection system for automatically triggering deployment of packages near trapped victims from the CRDS-guaranteeing accurate package deployment even when remote communication with the dog is impossible. A well-known ground robot problem is the difficulty in designing a mobility mechanism to traverse rubble. Another contribution of this thesis is the Canine Assisted Robot Deployment (CARD) framework and the design of a robot capable of being carried by a search dog. This work extends the responder’s telepresence in rescue operations by bringing robots much deeper into the disaster site than current methods. Visual odometry is used in location tracking in GPS-denied environments and can be used in rescue operations. This research explores the limitation of RGB-D cameras for visual odometry for this application. An algorithm called pseudo-Random Interest Points Extractor was developed iv to track images over visually feature-sparse areas with the potential use of visually reconstructing canine search paths to victims. This work concentrates on using visual odometry from data collected from a search dog-mounted RGB-D camera. The task of model stabilization is difficult due to the nature of dog’s constant and unpredictable movements, asthe data contains many motion blurred images. The development of an algorithm called Intelligent Frame Selector is shown to improve visual odometry for systems carried by search dogs by intelligently filtering data and selecting only usable frames. The algorithm can be applied to any general visual odometry pipeline beneficially as the technique reduces cumulative error problems by using less data.
Average popularityAverage popularity In bottom 99%Average influencePopularity: Citation-based measure reflecting the current impact.Average influence In bottom 99%Influence: Citation-based measure reflecting the total impact.add Add to ORCIDPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product. - Publication . Thesis . 2022Open Access IndonesianAuthors:Johanes, Jelvis;Johanes, Jelvis;Country: Indonesia
Jantung merupakan organ penting dalam tubuh manusia yang difungsikan untuk memompa darah ke seluruh tubuh. Untuk membantu memudahkan manusia dalam melakukan pemeriksaan detak jantung maka dalam penelitian ini menyajikan sebuah alat monitoring detak jantung dan suhu tubuh menggunakan Internet of Things. Internet of Things (IoT) adalah konsep dimana berbagai perangkat bersensor saling terhubung melalui internet untuk mengumpulkan dan mentransfer data. Dalam metode pengujian ini melibatkan 10 orang manahiswa, 1 orang anak-anak, 1 orang remaja, 1 orang dewasa, 1 orang lanjut usia, 1 orang dengan perokok aktif, 1 orang atlet dan 1 orang dengan berat badan berlebih (obesitas). Dalam pengujian ini menggunakan 2 buah sensor yaitu sensor MAX30105 sebagai sensor pengukuran detak jantung dan GY-906 sebagai sensor pengukur suhu tubuh. Dari hasil pengujian menggunakan alat pembanding error yang didapatkan rata-rata 0,06% untuk detak jantung dan 0,01 % untu suhu tubuh. Dalam pengujian sensor MAX30105 terdapat juga kadar oksigen dalam darah yang terdeteksi The heart is an important organ in the human body that functions to pump blood throughout the body. To help make it easier for humans to check their heart rate, this study presents a heart rate and body temperature monitoring tool using the Internet of Things. Internet of Things (IoT) is a concept where various sensor devices are interconnected via the internet to collect and transfer data. In this test method involved 10 students, 1 child, 1 teenager, 1 adult, 1 elderly person, 1 person with an active smoker, 1 athlete and 1 person with excess weight (obesity). In this test, 2 sensors are used, namely the MAX30105 sensor as a heart rate measurement sensor and the GY-906 as a body temperature sensor. From the test results using a comparison tool, the error obtained an average of 0.06% for heart rate and 0.01% for body temperature. In testing the MAX30105 sensor there is also a detectable level of oxygen in the blood.
- Publication . Other literature type . Doctoral thesis . Thesis . 2022Open Access EnglishAuthors:Giulio Mangino;Giulio Mangino;
handle: 10251/188916
Publisher: Universitat Politècnica de ValènciaCountry: SpainProject: EC | G2P-SOL (677379)[CAT] L'albergínia (Solanum melongena L.) és un dels cultius comercials d'hortalisses solanácees més importants que es cultiva àmpliament a Àsia i la regió del Mediterrani. Malgrat la seua importància econòmica, la disponibilitat de poblacions experimentals i eines genòmiques per al millorament és encara molt limitada en comparació amb altres cultius importants. A causa de l'alteració progressiva de l'ecosistema global pel canvi climàtic, les plantes estan constantment exposades a condicions ambientals estressants que impacten negativament en la seua productivitat. El coll de botella genètic ocorregut durant la domesticació de l'albergínia, que limita la disponibilitat de recursos genètics per al seu millorament genètic, fa que aquest cultiu siga extremadament vulnerable al canvi climàtic, per la qual cosa es requereixen noves estratègies per a reduir la seua erosió genètica. En aquest context, els parents silvestres dels cultius (CWRs) han demostrat ser un recurs genètic vàlid per a la millora vegetal, ja que el seu ús permet ampliar la diversitat genètica dels cultius i, en paral·lel, desenvolupar varietats millorades adaptades al canvi climàtic. Per a aconseguir aquest objectiu, en aquesta tesi doctoral presentem el desenvolupament i l'avaluació de materials avançats d'albergínia obtinguts mitjançant l'ús de parents silvestres. En el primer capítol, realitzem una avaluació fenotípica en dos ambients d'un conjunt de 16 IL d'albergínia amb introgresions de S. incanum, un parent silvestre. Es van puntuar dèsset caràcters agronòmics per a avaluar el rendiment de les ILs en comparació amb el parental recurrent i identificar els QTL per als caràcters investigats. Trobarem diferències morfològiques significatives entre els parentals, i l'híbrid va resultar heteròtic per als caràcters de vigor. A pesar que la interacció entre genotip i ambient (G x E) va resultar significativa per a la majoria dels caràcters, en general les ILs van mostrar poques diferències fenotípiques amb el progenitor receptor, fins i tot en presència de grans fragments d'introgresió del progenitor silvestre. Es van trobar valors de heredabilitat baixos a moderats per als caràcters agronòmics. En total, detectarem deu QTL estables, dos dels quals estaven relacionats a caràcters de planta i quatre per a caràcters de flor i fruit. En general, les introgresions de S. incanum van millorar els valors mitjos de la majoria dels caràcters de planta i flor, i van disminuir el dels caràcters de fruit. Per a tres QTL relacionats amb la longitud del pedicel del fruit i amb el pes del fruit, trobem evidència de sintenia amb altres QTLs identificats prèviament en poblacions d'albergínia. Set QTL eren nous, dels quals quatre estaven relacionats amb l'altura de la planta, amb la espinositat del calze de la flor i amb la llargària del pedicel del fruit no van colocalitzar amb cap QTL prèviament identificat en les poblacions d'albergínia, i tres relacionats amb el diàmetre de la tija, amb la llargària del peduncle i de l'estigma, van ser els primers reportats en albergínia per a aquests caràcters. En el segon capítol, el conjunt de IL d'albergínia amb introgresions de S. incanum es va avaluar per a la forma del fruit en dos ambients. Específicament, realitzarem un fenotipado detallat dels fruits dels parentals, de l'híbrid i de les ILs utilitzant 32 descriptors morfològics de l'eina fenómica Tomato Analyzer. Es van trobar grans diferències morfològiques en els fruits dels parentals, i l'híbrid va presentar valors negatius de heterosis per a molts dels caràcters de forma del fruit, sent fenotípicamente més pròxim al parental S. incanum. Per a la majoria dels descriptors de forma del fruit observarem diferències significatives entre les ILs i el parental recipient, fins i tot en presència de xicotets fragments d'introgresió del parental silvestre. A pesar que la contribució de l'ambient i la interacció G × E van ser significatives per a quasi tots els descriptors, trobem que els seus... [ES] La berenjena (Solanum melongena L.) es uno de los cultivos comerciales de hortalizas solanáceas más importantes que se cultiva ampliamente en Asia y la región del Mediterráneo. A pesar de su importancia económica, la disponibilidad de poblaciones experimentales y herramientas genómicas para el mejoramiento es aún muy limitada en comparación con otros cultivos importantes. Debido a la alteración progresiva del ecosistema global por el cambio climático, las plantas están constantemente expuestas a condiciones ambientales estresantes que impactan negativamente en su productividad. El cuello de botella genético ocurrido durante la domesticación de la berenjena, que limita la disponibilidad de recursos genéticos para su mejoramiento genético, hace que este cultivo sea extremadamente vulnerable al cambio climático, por lo que se requieren nuevas estrategias para reducir su erosión genética. En este contexto, los parientes silvestres de los cultivos (CWRs) han demostrado ser un recurso genético válido para la mejora vegetal, ya que su uso permite ampliar la diversidad genética de los cultivos y, en paralelo, desarrollar variedades mejoradas adaptadas al cambio climático. Para lograr este objetivo, en esta tesis doctoral informamos sobre el desarrollo y la evaluación de materiales avanzados de berenjena obtenidos mediante el uso de parientes silvestres. En el primer capítulo, realizamos una evaluación fenotípica en dos ambientes de un conjunto de 16 ILs de berenjena con introgresión de S. incanum, un pariente silvestre. Se evaluaron diecisiete caracteres agronómicos para comparar el rendimiento de las ILs con el parental recurrente e identificar QTLs para los caracteres investigados. Encontramos diferencias morfológicas significativas entre los parentales, y el híbrido resultó heterótico para los caracteres de vigor. A pesar de que la interacción entre genotipo y ambiente (G x E) resultó significativa para la mayoría de los caracteres, en general las ILs mostraron pocas diferencias fenotípicas con el progenitor receptor, incluso en presencia de grandes fragmentos de introgresión del progenitor silvestre. Se encontraron valores de heredabilidad bajos a moderados para los caracteres agronómicos. En total, detectamos diez QTLs estables, dos de los cuales estaban relacionados con caracteres de planta y cuatro para caracteres de flor y fruto. En general, las introgresiones de S. incanum mejoraron los valores medios de la mayoría de los caracteres de planta y flor, y disminuyeron el de los caracteres de fruto. Para tres QTLs relacionados con la longitud del pedicelo del fruto y con el peso del fruto, encontramos evidencia de sintenia con otros QTLs identificados previamente en poblaciones de berenjena. Siete QTLs eran nuevos, de los cuales cuatro relacionados con la altura de la planta, con la espinosidad del cáliz de la flor y con la longitud del pedicelo del fruto no colocalizaron con ningún QTL previamente identificado en las poblaciones de berenjena, y tres relacionados con el diámetro del tallo, con la longitud del pedúnculo y del estigma, fueron los primeros identificados en berenjena para estos caracteres. En el segundo capítulo, el conjunto de IL de berenjena con introgresiones de S. incanum se evaluó para la forma del fruto en dos ambientes. Específicamente, realizamos un fenotipado detallado de los frutos de los parentales, del híbrido y de las ILs utilizando 32 descriptores morfológicos de la herramienta fenómica Tomato Analyzer. Se encontraron grandes diferencias morfológicas en los frutos de los parentales, y el híbrido presentó valores negativos de heterosis para muchos de los caracteres de forma del fruto, siendo fenotípicamente más cercano al parental S. incanum. Para la mayoría de los descriptores de forma del fruto observamos diferencias significativas entre las ILs y el parental receptor, incluso en presencia de pequeños fragmentos de introgresión del parental silvestre. A pesar de que la contribución del ambiente y la... [EN] Eggplant (Solanum melongena L.) is one of the most important commercial solanaceous vegetable crops grown widely in Asia and Mediterranean region. Despite its economic importance, the availability of experimental populations and genomic tools for breeding is still very limited compared to other major crops. Due to the progressive alteration of global ecosystem by climate change, plants are constantly exposed to stressful environmental conditions that impact negatively on their productivity. The genetic bottleneck occurred during eggplant domestication, which limits the availability of genetic resources for its genetic improvement, makes this crop extremely vulnerable to climate change, and, therefore, new strategies are needed for reducing its genetic erosion. In this context, crop wild relatives (CWRs) have demonstrated to be a valid genetic resources for plant breeding, as their use allows to broaden the genetic diversity of the crop and, in parallel, develop improved varieties adapted to climate change. To achieve this objective, in this doctoral thesis we reported on the development and evaluation of eggplant advanced materials obtained by using crop wild relatives. In the first chapter, we have conducted a phenotypic evaluation in two environments of a set of 16 eggplant ILs with introgression from S. incanum, a close wild relative. Seventeen agronomic traits were scored to test the performance of ILs compared to the recurrent parent and identify QTLs for the investigated traits. We found significant morphological differences between parents, and the hybrid was heterotic for vigour related traits. Although significant genotype x environment interaction (G x E) was detected for most traits, the ILs generally exhibited few phenotypic differences with recipient parent, even in the presence of large introgression fragments from the wild parent. Low to moderate heritability values were found for the agronomic traits. In total, we detected ten stable QTLs, two of which were for plant-related traits and four for both flower- and fruit-related traits. In general, S. incanum introgressions improved the performance of most plant- and flower-related traits and decreased that of fruit-related traits. For three QTLs related to fruit pedicel length and fruit weight, we found evidence of synteny to other QTLs previously reported in eggplant populations. Seven QTLs were new, of which four related to plant height, flower calyx prickles, and fruit pedicel length, did not colocalized with any previous identified QTLs in eggplant populations, and three related to stem diameter, peduncle length, and stigma length, were the first reported in eggplant for these traits. In the second chapter, the set of eggplant ILs with introgression from S. incanum was evaluated for fruit shape in two environments. Specifically, we performed a detailed phenotyping of the fruits of the parents, hybrid, and ILs using 32 morphological descriptors of the phenomics tool Tomato Analyzer. Large differences in fruit morphology were found between ILs parents, and the hybrid exhibited negative values of heterosis for many fruit shape traits, being phenotypically closer to S. incanum parent. For most fruit shape descriptors, we observed significant differences between ILs and recipient parent, even in the presence of small wild donor fragments. Although the contribution of the environment and G × E interaction were significant for almost all descriptors, we found that their effects on fruit shape were relatively low, and the observed variations in fruit shape was mainly genetically regulated. Hierarchical clustering revealed nine clusters of highly correlated traits and six ILs groups. A total of 41 QTLs were mapped. Of these, sixteen associated to Basic Measurement and Fruit Shape Index descriptors were syntenic to other previously reported in several intraspecific and interspecific eggplant populations, while twenty-five QTLs related to Blockiness, Homogeneity.... This work was undertaken as part of the initiative “Adapting Agriculture to Climate Change: Collecting, Protecting, and Preparing Crop Wild Relatives”, which is supported by the Government of Norway. The project is managed by the Global Crop Diversity Trust with the Millennium Seed Bank of the Royal Botanic Gardens, Kew and implemented in partnership with national and international gene banks and plant breeding institutes around the world. For further information, see the project website: http://www.cwrdiversity.org/. Funding was also received from Spanish Ministerio de Economía, Industria y Competitividad and Fondo Europeo de Desarrollo Regional (grant AGL2015-64755-R from MINECO/FEDER); from Ministerio de Ciencia, Innovación y Universidades, Agencia Estatal de Investigación and Fondo Europeo de Desarrollo Regional (grant RTI-2018-094592-B-100 from MCIU/AEI/FEDER, UE); from European Union’s Horizon 2020 Research and Innovation Programme under grant agreement No. 677379 (G2P-SOL project: Linking genetic resources, genomes and phenotypes of Solanaceous crops); and from Vicerrectorado de Investigación, Innovación y Transferencia de la Universitat Politècnica de València (Ayuda a Primeros Proyectos de Investigación; PAID-06-18). Giulio Mangino is grateful to Generalitat Valenciana for a predoctoral grant within the Santiago Grisolía programme (GRISOLIAP/2016/012).
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- Publication . Thesis . 2022Open Access EnglishAuthors:Hector, Andrew;Hector, Andrew;
handle: 10214/27403
Publisher: University of GuelphCountry: CanadaFour trials across Ontario were sampled to evaluate the effects of best management practices (BMP) on six soil health indicators (SHI). As well, the use of near infrared (NIR) and mid infrared (MIR) spectroscopy to predict SHI was explored at site and regional levels. Lastly, MIR spectroscopy was utilized to identify differences in soils under differing BMPs. The study found no-tillage (NT) improved SHI values at two of three sites. Inclusion of cover crops and small grains in rotation improved SHI values at one site, while no significant differences were found at two sites. The study found that MIR models predicted SHI better than NIR models. As well, the use of competitive adaptive reweighted sampling (CARS) feature selection improved model performance compared to full spectra models. Lastly, differences were found between MIR spectra from soils under NT and moldboard plow treatments and between annual versus perennial crop rotations. Ontario Agri-Food Innovation Alliance
add Add to ORCIDPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product. - Publication . 2022Open AccessAuthors:Lacalle Úbeda, Ignacio;Lacalle Úbeda, Ignacio;
handle: 10251/190634
Publisher: Universitat Politecnica de ValenciaCountry: Spain[ES] El Internet de las Cosas (IoT) ha experimentado un gran crecimiento en los últimos años. El incremento en el número de dispositivos, una mayor miniaturización de la capacidad de computación y las técnicas de virtualización, han favorecido su adopción en la industria y en otros sectores. Asimismo, la introducción de nuevas tecnologías (como la Inteligencia Artificial, el 5G, el Tactile Internet o la Realidad Aumentada) y el auge del edge computing preparan el terreno, y formulan los requisitos, para lo que se conoce como Internet de las Cosas de Nueva Generación (NGIoT). Estos avances plantean nuevos desafíos tales como el establecimiento de arquitecturas que cubran dichas necesidades y a la vez resulten flexibles, escalables y prácticas para implementar servicios que aporten valor a la sociedad. En este sentido, el IoT puede resultar un elemento clave para el establecimiento de políticas y la toma de decisiones. Una herramienta muy útil para ello es la definición y cálculo de indicadores compuestos, que representan un impacto en un fenómeno real a través de un único valor. La generación de estos indicadores es un aspecto promovido por entidades oficiales como la Unión Europea, aunque su automatización y uso en entornos de tiempo real es un campo poco explorado. Este tipo de índices deben seguir una serie de operaciones matemáticas y formalidades (normalización, ponderación, agregación¿) para ser considerados válidos. Esta tesis doctoral plantea la unión de ambos campos en alza, proponiendo una arquitectura de Internet de las Cosas de nueva generación orientada al servicio de cálculo y predicción de indicadores compuestos. Partiendo de la experiencia del candidato en proyectos de investigación europeos y regionales, y construyendo sobre tecnologías open source, se ha incluido el diseño, desarrollo e integración de los módulos de dicha arquitectura (adquisición de datos, procesamiento, visualización y seguridad) como parte de la tesis. Dichos planteamientos e implementaciones se han validado en cinco escenarios diferentes, cubriendo cinco índices compuestos en entornos con requisitos dispares siguiendo una metodología diseñada durante este trabajo. Los casos de uso están centrados en aspectos de sostenibilidad en entornos urbano y marítimo-portuario, pero se ha destacado que la solución puede ser extrapolada a otros sectores ya que ha sido diseñada de una manera agnóstica. El resultado de la tesis ha sido, además, analizado desde el punto de vista de transferencia tecnológica. Se ha propuesto la formulación de un producto, así como una posible financiación en fases de madurez más avanzadas y su potencial explotación como elemento comercializable [CA] La Internet de les Coses (IoT) ha experimentat un gran creixement en els últims anys. L'increment en el nombre de dispositius, una major miniaturització de la capacitat de computació i les tècniques de virtualització, han afavorit la seua adopció en la indústria i en altres sectors. Així mateix, la introducció de noves tecnologies (com la Intel·ligència Artificial, el 5G, la Internet Tàctil o la Realitat Augmentada) i l'auge del edge computing preparen el terreny, i formulen els requisits, per al que es coneix com a Internet de les Coses de Nova Generació (NGIoT). Aquests avanços plantegen nous desafiaments com ara l'establiment d'arquitectures que cobrisquen aquestes necessitats i resulten, alhora, flexibles, escalables i pràctiques per a implementar serveis que aporten valor a la societat. Ací, el IoT pot resultar un element clau per a l'establiment de polítiques i la presa de decisions. Una eina molt útil en aquest sentit és la definició i càlcul d'indicadors compostos, que representen un impacte en un fenomen real a través d'un únic valor. La generació d'aquests indicadors és un aspecte promogut per entitats oficials com la Unió Europea, encara que la seua automatització i ús en entorns de temps real és un camp poc explorat. Aquest tipus d'índexs han de seguir una sèrie d'operacions matemàtiques i formalitats (normalització, ponderació, agregació¿) per a ser considerats vàlids. Aquesta tesi doctoral planteja la unió de tots dos camps en alça, proposant una arquitectura d'Internet de les Coses de nova generació orientada al servei de càlcul i predicció d'indicadors compostos. Partint de l'experiència del candidat en projectes d'investigació europeus i regionals, i construint sobre tecnologies open source, s'ha inclòs el disseny, desenvolupament i integració dels mòduls d'aquesta arquitectura (adquisició de dades, processament, visualització i seguretat) com a part de la tesi. Aquests plantejaments i implementacions s'han validat en cinc escenaris diferents, cobrint cinc índexs compostos en entorns amb requisits dispars seguint una metodologia dissenyada durant aquest treball. Els casos d'ús estan centrats en aspectes de sostenibilitat en entorns urbà i marítim-portuari, però s'ha destacat que la solució pot ser extrapolada a altres sectors ja que ha sigut dissenyada d'una manera agnòstica. El resultat de la tesi ha sigut, a més, analitzat des del punt de vista de transferència tecnològica. S'ha proposat la formulació d'un producte, així com un possible finançament en fases de maduresa més avançades i la seua potencial explotació com a element comercialitzable [EN] The Internet of Things (IoT) has experienced tremendous growth in recent years. The increase in the number of devices, greater miniaturization of computing capacity and virtualization techniques have favored its adoption in industry and other sectors. Likewise, the introduction of new technologies (such as Artificial Intelligence, 5G, Tactile Internet or Augmented Reality), together with the rise of edge computing, are paving the way, and formulating the requirements, for what is known as the Next Generation Internet of Things (NGIoT). These advances pose new challenges such as the establishment of proper architectures that meet those needs and, at the same time, are flexible, scalable, and practical for implementing services that bring value to society. In this sense, IoT could be a key element for policy and decision making. A very useful tool for this is the definition and calculation of composite indicators, which represent an impact on a real phenomenon through a single value. The generation of these indicators is an aspect promoted by official entities such as the European Union, although their automation and use in real-time environments is a rather uncharted research field. This type of indexes must follow a series of mathematical operations and formalities (normalization, weighting, aggregation...) to be considered valid. This doctoral thesis proposes the union of both fields, proposing a new generation Internet of Things architecture oriented to the calculation and prediction of composite indicators. Based on the candidate's experience in European and regional research projects, and building on open source technologies, the design, development and integration of the modules of such architecture (data acquisition, processing, visualization and security) has been included as part of the thesis. These approaches and implementations have been validated in five different scenarios, covering five composite indexes in environments with disparate requirements following a methodology designed during this work. The use cases are focused on sustainability aspects in urban and maritime-port environments, but it has been highlighted that the solution can be extrapolated to other sectors as it has been designed in an agnostic way. The result of the thesis has also been analyzed from the point of view of technology transfer. A tentative product definition has been formulated, as well as a possible financing in more advanced stages of maturity and its potential exploitation as a marketable element
Average popularityAverage popularity In bottom 99%Average influencePopularity: Citation-based measure reflecting the current impact.Average influence In bottom 99%Influence: Citation-based measure reflecting the total impact.add Add to ORCIDPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product. - Publication . Thesis . 2022Open Access EnglishAuthors:Brown, Austin;Brown, Austin;
handle: 10214/27434
Publisher: University of GuelphCountry: CanadaThe mobilization of scientific knowledge for agricultural application has long been supported by Radio broadcast in Africa. Digital radio and mobile phone integration are becoming linked with radio and physical extension services, known as Radio+. Farm Radio International provides radio extension services in Ghana and participated in a research attachment for this study. There is a need to improve the content and delivery of agricultural extension services. The study utilized Collaborative Inquiry interviews, a process involving semi-structured, in-depth and interactive discussions. Farm Radio International employees were the interview demographic. The interview data was analyzed using a deductive thematic coding process using NVivo. Issues with funding and capacity, participatory processes, and digital development consistently effect all sectors of agricultural extension in Ghana. Based on these results, the recommendation provided is the development of a digital extension application to serve as a mobile communications and information hub to farmers in rural Ghana.
add Add to ORCIDPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product. - Publication . Thesis . 2022Open Access EnglishAuthors:Craig, Valerie;Craig, Valerie;
handle: 10214/27391
Publisher: University of GuelphCountry: CanadaMaize black layer (BL) is the developmental stage where plants reach physiological maturity, which is a desirable trait, but phenotyping this trait is time consuming and costly. Any tool enabling high-throughput phenotyping of BL would be an invaluable asset for developing or maintaining short-season maize hybrids. This thesis investigated the potential of using remote sensing (RS) technologies to detect BL. The spectral signatures of 16 short-season maize hybrids were captured using a ground-based hyperspectral sensor through the late grain filling period (GFP) which were then used to develop and test vegetation indices (VIs) that correlated with BL formation. Two of these VIs, the normalized green red difference index (NGRDI) and the novel VI.5 were highly accurate, specific, and had spectral curves that match the physiology of maize in the late GFP. These findings suggest that high-throughput phenotyping of maize BL is possible using RS technologies. Natural Sciences and Engineering Research Council (NSERC) Discovery Grant, Natural Sciences and Engineering Research Council (NSERC) Collaborative Research and Development (CRD) grant with the support of Maizex Seeds Inc.
add Add to ORCIDPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product. - Publication . Thesis . 2022Open Access IndonesianAuthors:Millenika, Prayudha;Millenika, Prayudha;Country: Indonesia
Kebutuhan air pada tanaman merupakan hal yang penting bagi kondisi tanaman. Tanaman akan tumbuh dengan baik bila diberi perawatan yang benar, yaitu dengan cara menyiram dengan air yang cukup ketika tanah kering secara teratur serta menjaga kelembapan tanahnya, dan bila tanaman kekurangan atau kelebihan air dapat menyebabkan tanaman tidak tumbuh dengan baik dan bisa saja tanaman akan mati, dari permasalahan tersebut dibangun sebuah alat yang dapat memonitoring kelembapan tanah serta mengontrol penyiraman secara otomatis maupun manual, dengan memanfaatkan teknologi Internet of Things dan aplikasi telegram agar dapat memantau dan mengontrol melalui handphone. Alat ini menggunakan mikrokontroler ESP32 sebagai kontrol utama, yang terhubung dengan telegram. Pemantauan kelembaban tanah dilakukan menggunakan sensor YL-69, nantinya hasil pembacaan akan ditampilkan ke aplikasi telegram dan LCD, untuk penyiraman dapat dilakukan menggunakan aplikasi telegram atau ketika nilai kelembapan tanah kurang dari batas yang ditentukan, maka relay akan aktif untuk menyalakan pompa, untuk buka tutup kanopi, dapat dilakukan menggunakan aplikasi telegram atau melalui pembacaan sensor YL-83 jika terbaca kurang dari 2800, untuk mengecek kapasitas bak air menggunakan sensor ultrasonik HC-SR04. Waktu Respons pengontrolan sistem melalui telegram dipengaruhi oleh koneksi internet. The water requirement is vital for the condition of the plant, by giving the right care makes plants will grow well, regularly watering when the soil is dry and keeping the soil moist, and if the plant lacks or has excess water it causes the plant not to grow properly and the plant may die, from these problems, a tool was built that can monitor soil moisture and control watering automatically or manually, by utilizing Internet of Things technology and the telegram application so that it can monitor and control via mobile phones. This tool uses an ESP32 microcontroller as the main control, which is connected to a telegram, to monitor the soil moisture using the YL-69 sensor, then the reading results will be displayed on the telegram application and LCD, watering can be done using the telegram application or else when the soil moisture value is less than the specified limit, the relay will activate to turn on the pump, to opening and closing the canopy can be done using the telegram application or the YL-83 sensor reading if it reads less than 2800, to check the capacity of the water tank using the ultrasonic sensor HC-SR04. The response time of controlling the system via telegram is affected by the internet connection.
- Publication . Thesis . 2022Open Access EnglishAuthors:Illesinghe, Kasuni Sachithra;Illesinghe, Kasuni Sachithra;
handle: 10214/27352
Publisher: University of GuelphCountry: CanadaSri Lankans use Facebook (Fb) to communicate and share information. The virtual communities of practices (VCoPs) share knowledge and build relationships while encouraging learning and providing opportunities for doing business. Yet, online misinformation circulation threatens the information-sharing and learning process within VCoPs. Therefore, members of Fb communities could be easy targets of misinformation. This study explores how knowledge sharing and learning occur within Fb Virtual Communities in Sri Lanka with the threat of disseminating misinformation. The research findings revealed that while Fb VCoPs share knowledge related to diverse agricultural topics via different mediums to provide solutions to overcome the prevailing challenges in Sri Lankan agriculture, online misinformation threatens the sustainability of VCoPs. State interference, members’ violent behaviour, and lack of diverse content decrease members’ engagement. Research results highlight the importance of tackling the misinformation threat and the necessity of government support in developing the capacities of these VCoPs. 2023-12-31
add Add to ORCIDPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product. - Publication . Thesis . 2022Open Access EnglishAuthors:Mass, Jakob;Mass, Jakob;Country: Estonia
Värkvõrk, ehk Asjade Internet (Internet of Things, lüh IoT) edendab lahendusi nagu nn tark linn, kus meid igapäevaselt ümbritsevad objektid on ühendatud infosüsteemidega ja ka üksteisega. Selliseks näiteks võib olla teekatete seisukorra monitoorimissüsteem. Võrku ühendatud sõidukitelt (nt bussidelt) kogutakse videomaterjali, mida seejärel töödeldakse, et tuvastada löökauke või lume kogunemist. Tavaliselt hõlmab selline lahendus keeruka tsentraalse süsteemi ehitamist. Otsuste langetamiseks (nt milliseid sõidukeid parasjagu protsessi kaasata) vajab keskne süsteem pidevat ühendust kõigi IoT seadmetega. Seadmete hulga kasvades võib keskne lahendus aga muutuda pudelikaelaks. Selliste protsesside disaini, haldust, automatiseerimist ja seiret hõlbustavad märkimisväärselt äriprotsesside halduse (Business Process Management, lüh BPM) valdkonna standardid ja tööriistad. Paraku ei ole BPM tehnoloogiad koheselt kasutatavad uute paradigmadega nagu Udu- ja Servaarvutus, mis tuleviku värkvõrgu jaoks vajalikud on. Nende puhul liigub suur osa otsustustest ja arvutustest üksikutest andmekeskustest servavõrgu seadmetele, mis asuvad lõppkasutajatele ja IoT seadmetele lähemal. Videotöötlust võiks teostada mini-andmekeskustes, mis on paigaldatud üle linna, näiteks bussipeatustesse. Arvestades IoT seadmete üha suurenevat hulka, vähendab selline koormuse jaotamine vähendab riski, et tsentraalne andmekeskust ülekoormamist. Doktoritöö uurib, kuidas mobiilsusega seonduvaid IoT protsesse taoliselt ümber korraldada, kohanedes pidevalt muutlikule, liikuvate seadmetega täidetud servavõrgule. Nimelt on ühendused katkendlikud, mistõttu otsuste langetus ja planeerimine peavad arvestama muuhulgas mobiilseadmete liikumistrajektoore. Töö raames valminud prototüüpe testiti Android seadmetel ja simulatsioonides. Lisaks valmis tööriistakomplekt STEP-ONE, mis võimaldab teadlastel hõlpsalt simuleerida ja analüüsida taolisi probleeme erinevais realistlikes stsenaariumites nagu seda on tark linn. The Internet of Things (IoT) promotes solutions such as a smart city, where everyday objects connect with info systems and each other. One example is a road condition monitoring system, where connected vehicles, such as buses, capture video, which is then processed to detect potholes and snow build-up. Building such a solution typically involves establishing a complex centralised system. The centralised approach may become a bottleneck as the number of IoT devices keeps growing. It relies on constant connectivity to all involved devices to make decisions, such as which vehicles to involve in the process. Designing, automating, managing, and monitoring such processes can greatly be supported using the standards and software systems provided by the field of Business Process Management (BPM). However, BPM techniques are not directly applicable to new computing paradigms, such as Fog Computing and Edge Computing, on which the future of IoT relies. Here, a lot of decision-making and processing is moved from central data-centers to devices in the network edge, near the end-users and IoT sensors. For example, video could be processed in mini-datacenters deployed throughout the city, e.g., at bus stops. This load distribution reduces the risk of the ever-growing number of IoT devices overloading the data center. This thesis studies how to reorganise the process execution in this decentralised fashion, where processes must dynamically adapt to the volatile edge environment filled with moving devices. Namely, connectivity is intermittent, so decision-making and planning need to involve factors such as the movement trajectories of mobile devices. We examined this issue in simulations and with a prototype for Android smartphones. We also showcase the STEP-ONE toolset, allowing researchers to conveniently simulate and analyse these issues in different realistic scenarios, such as those in a smart city. https://www.ester.ee/record=b5525514
- Publication . Thesis . 2022Open AccessAuthors:Jimmy Quang Minh Ngoc Tran;Jimmy Quang Minh Ngoc Tran;Publisher: Ryerson University Library and Archives
When disaster strikes in urban areas, the devastating results are collapsed structures that may contain voids, and trapped people within. To a large extent, the speed with which these victims can be found and extricated determines the likelihood of their survival. Specially trained and equipped emergency first responders are tasked with trying to save their lives by locating and extricating trapped victims from these dangerous environments. Telepresence systems can help first responders search for casualties from a safe location. Most automated search systems intended for use in urban disasters, come in the form of remotely operated robots. This work takes a different approach to telepresence and robotics. This work is an extension of previous work that exploits the intelligence and characteristics of trained search dogs combined with compatible technology and used as components in new kinds of telepresence systems for urban search and rescue (USAR) operations. The Canine Remote Deployment System (CRDS) is a tool that emergency responders can use to deliver critical supplies to trapped victims in rubble using dogs. The first contribution of this work is the development of the bark detection system for automatically triggering deployment of packages near trapped victims from the CRDS-guaranteeing accurate package deployment even when remote communication with the dog is impossible. A well-known ground robot problem is the difficulty in designing a mobility mechanism to traverse rubble. Another contribution of this thesis is the Canine Assisted Robot Deployment (CARD) framework and the design of a robot capable of being carried by a search dog. This work extends the responder’s telepresence in rescue operations by bringing robots much deeper into the disaster site than current methods. Visual odometry is used in location tracking in GPS-denied environments and can be used in rescue operations. This research explores the limitation of RGB-D cameras for visual odometry for this application. An algorithm called pseudo-Random Interest Points Extractor was developed iv to track images over visually feature-sparse areas with the potential use of visually reconstructing canine search paths to victims. This work concentrates on using visual odometry from data collected from a search dog-mounted RGB-D camera. The task of model stabilization is difficult due to the nature of dog’s constant and unpredictable movements, asthe data contains many motion blurred images. The development of an algorithm called Intelligent Frame Selector is shown to improve visual odometry for systems carried by search dogs by intelligently filtering data and selecting only usable frames. The algorithm can be applied to any general visual odometry pipeline beneficially as the technique reduces cumulative error problems by using less data.
Average popularityAverage popularity In bottom 99%Average influencePopularity: Citation-based measure reflecting the current impact.Average influence In bottom 99%Influence: Citation-based measure reflecting the total impact.add Add to ORCIDPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product. - Publication . Thesis . 2022Open Access IndonesianAuthors:Johanes, Jelvis;Johanes, Jelvis;Country: Indonesia
Jantung merupakan organ penting dalam tubuh manusia yang difungsikan untuk memompa darah ke seluruh tubuh. Untuk membantu memudahkan manusia dalam melakukan pemeriksaan detak jantung maka dalam penelitian ini menyajikan sebuah alat monitoring detak jantung dan suhu tubuh menggunakan Internet of Things. Internet of Things (IoT) adalah konsep dimana berbagai perangkat bersensor saling terhubung melalui internet untuk mengumpulkan dan mentransfer data. Dalam metode pengujian ini melibatkan 10 orang manahiswa, 1 orang anak-anak, 1 orang remaja, 1 orang dewasa, 1 orang lanjut usia, 1 orang dengan perokok aktif, 1 orang atlet dan 1 orang dengan berat badan berlebih (obesitas). Dalam pengujian ini menggunakan 2 buah sensor yaitu sensor MAX30105 sebagai sensor pengukuran detak jantung dan GY-906 sebagai sensor pengukur suhu tubuh. Dari hasil pengujian menggunakan alat pembanding error yang didapatkan rata-rata 0,06% untuk detak jantung dan 0,01 % untu suhu tubuh. Dalam pengujian sensor MAX30105 terdapat juga kadar oksigen dalam darah yang terdeteksi The heart is an important organ in the human body that functions to pump blood throughout the body. To help make it easier for humans to check their heart rate, this study presents a heart rate and body temperature monitoring tool using the Internet of Things. Internet of Things (IoT) is a concept where various sensor devices are interconnected via the internet to collect and transfer data. In this test method involved 10 students, 1 child, 1 teenager, 1 adult, 1 elderly person, 1 person with an active smoker, 1 athlete and 1 person with excess weight (obesity). In this test, 2 sensors are used, namely the MAX30105 sensor as a heart rate measurement sensor and the GY-906 as a body temperature sensor. From the test results using a comparison tool, the error obtained an average of 0.06% for heart rate and 0.01% for body temperature. In testing the MAX30105 sensor there is also a detectable level of oxygen in the blood.
- Publication . Other literature type . Doctoral thesis . Thesis . 2022Open Access EnglishAuthors:Giulio Mangino;Giulio Mangino;
handle: 10251/188916
Publisher: Universitat Politècnica de ValènciaCountry: SpainProject: EC | G2P-SOL (677379)[CAT] L'albergínia (Solanum melongena L.) és un dels cultius comercials d'hortalisses solanácees més importants que es cultiva àmpliament a Àsia i la regió del Mediterrani. Malgrat la seua importància econòmica, la disponibilitat de poblacions experimentals i eines genòmiques per al millorament és encara molt limitada en comparació amb altres cultius importants. A causa de l'alteració progressiva de l'ecosistema global pel canvi climàtic, les plantes estan constantment exposades a condicions ambientals estressants que impacten negativament en la seua productivitat. El coll de botella genètic ocorregut durant la domesticació de l'albergínia, que limita la disponibilitat de recursos genètics per al seu millorament genètic, fa que aquest cultiu siga extremadament vulnerable al canvi climàtic, per la qual cosa es requereixen noves estratègies per a reduir la seua erosió genètica. En aquest context, els parents silvestres dels cultius (CWRs) han demostrat ser un recurs genètic vàlid per a la millora vegetal, ja que el seu ús permet ampliar la diversitat genètica dels cultius i, en paral·lel, desenvolupar varietats millorades adaptades al canvi climàtic. Per a aconseguir aquest objectiu, en aquesta tesi doctoral presentem el desenvolupament i l'avaluació de materials avançats d'albergínia obtinguts mitjançant l'ús de parents silvestres. En el primer capítol, realitzem una avaluació fenotípica en dos ambients d'un conjunt de 16 IL d'albergínia amb introgresions de S. incanum, un parent silvestre. Es van puntuar dèsset caràcters agronòmics per a avaluar el rendiment de les ILs en comparació amb el parental recurrent i identificar els QTL per als caràcters investigats. Trobarem diferències morfològiques significatives entre els parentals, i l'híbrid va resultar heteròtic per als caràcters de vigor. A pesar que la interacció entre genotip i ambient (G x E) va resultar significativa per a la majoria dels caràcters, en general les ILs van mostrar poques diferències fenotípiques amb el progenitor receptor, fins i tot en presència de grans fragments d'introgresió del progenitor silvestre. Es van trobar valors de heredabilitat baixos a moderats per als caràcters agronòmics. En total, detectarem deu QTL estables, dos dels quals estaven relacionats a caràcters de planta i quatre per a caràcters de flor i fruit. En general, les introgresions de S. incanum van millorar els valors mitjos de la majoria dels caràcters de planta i flor, i van disminuir el dels caràcters de fruit. Per a tres QTL relacionats amb la longitud del pedicel del fruit i amb el pes del fruit, trobem evidència de sintenia amb altres QTLs identificats prèviament en poblacions d'albergínia. Set QTL eren nous, dels quals quatre estaven relacionats amb l'altura de la planta, amb la espinositat del calze de la flor i amb la llargària del pedicel del fruit no van colocalitzar amb cap QTL prèviament identificat en les poblacions d'albergínia, i tres relacionats amb el diàmetre de la tija, amb la llargària del peduncle i de l'estigma, van ser els primers reportats en albergínia per a aquests caràcters. En el segon capítol, el conjunt de IL d'albergínia amb introgresions de S. incanum es va avaluar per a la forma del fruit en dos ambients. Específicament, realitzarem un fenotipado detallat dels fruits dels parentals, de l'híbrid i de les ILs utilitzant 32 descriptors morfològics de l'eina fenómica Tomato Analyzer. Es van trobar grans diferències morfològiques en els fruits dels parentals, i l'híbrid va presentar valors negatius de heterosis per a molts dels caràcters de forma del fruit, sent fenotípicamente més pròxim al parental S. incanum. Per a la majoria dels descriptors de forma del fruit observarem diferències significatives entre les ILs i el parental recipient, fins i tot en presència de xicotets fragments d'introgresió del parental silvestre. A pesar que la contribució de l'ambient i la interacció G × E van ser significatives per a quasi tots els descriptors, trobem que els seus... [ES] La berenjena (Solanum melongena L.) es uno de los cultivos comerciales de hortalizas solanáceas más importantes que se cultiva ampliamente en Asia y la región del Mediterráneo. A pesar de su importancia económica, la disponibilidad de poblaciones experimentales y herramientas genómicas para el mejoramiento es aún muy limitada en comparación con otros cultivos importantes. Debido a la alteración progresiva del ecosistema global por el cambio climático, las plantas están constantemente expuestas a condiciones ambientales estresantes que impactan negativamente en su productividad. El cuello de botella genético ocurrido durante la domesticación de la berenjena, que limita la disponibilidad de recursos genéticos para su mejoramiento genético, hace que este cultivo sea extremadamente vulnerable al cambio climático, por lo que se requieren nuevas estrategias para reducir su erosión genética. En este contexto, los parientes silvestres de los cultivos (CWRs) han demostrado ser un recurso genético válido para la mejora vegetal, ya que su uso permite ampliar la diversidad genética de los cultivos y, en paralelo, desarrollar variedades mejoradas adaptadas al cambio climático. Para lograr este objetivo, en esta tesis doctoral informamos sobre el desarrollo y la evaluación de materiales avanzados de berenjena obtenidos mediante el uso de parientes silvestres. En el primer capítulo, realizamos una evaluación fenotípica en dos ambientes de un conjunto de 16 ILs de berenjena con introgresión de S. incanum, un pariente silvestre. Se evaluaron diecisiete caracteres agronómicos para comparar el rendimiento de las ILs con el parental recurrente e identificar QTLs para los caracteres investigados. Encontramos diferencias morfológicas significativas entre los parentales, y el híbrido resultó heterótico para los caracteres de vigor. A pesar de que la interacción entre genotipo y ambiente (G x E) resultó significativa para la mayoría de los caracteres, en general las ILs mostraron pocas diferencias fenotípicas con el progenitor receptor, incluso en presencia de grandes fragmentos de introgresión del progenitor silvestre. Se encontraron valores de heredabilidad bajos a moderados para los caracteres agronómicos. En total, detectamos diez QTLs estables, dos de los cuales estaban relacionados con caracteres de planta y cuatro para caracteres de flor y fruto. En general, las introgresiones de S. incanum mejoraron los valores medios de la mayoría de los caracteres de planta y flor, y disminuyeron el de los caracteres de fruto. Para tres QTLs relacionados con la longitud del pedicelo del fruto y con el peso del fruto, encontramos evidencia de sintenia con otros QTLs identificados previamente en poblaciones de berenjena. Siete QTLs eran nuevos, de los cuales cuatro relacionados con la altura de la planta, con la espinosidad del cáliz de la flor y con la longitud del pedicelo del fruto no colocalizaron con ningún QTL previamente identificado en las poblaciones de berenjena, y tres relacionados con el diámetro del tallo, con la longitud del pedúnculo y del estigma, fueron los primeros identificados en berenjena para estos caracteres. En el segundo capítulo, el conjunto de IL de berenjena con introgresiones de S. incanum se evaluó para la forma del fruto en dos ambientes. Específicamente, realizamos un fenotipado detallado de los frutos de los parentales, del híbrido y de las ILs utilizando 32 descriptores morfológicos de la herramienta fenómica Tomato Analyzer. Se encontraron grandes diferencias morfológicas en los frutos de los parentales, y el híbrido presentó valores negativos de heterosis para muchos de los caracteres de forma del fruto, siendo fenotípicamente más cercano al parental S. incanum. Para la mayoría de los descriptores de forma del fruto observamos diferencias significativas entre las ILs y el parental receptor, incluso en presencia de pequeños fragmentos de introgresión del parental silvestre. A pesar de que la contribución del ambiente y la... [EN] Eggplant (Solanum melongena L.) is one of the most important commercial solanaceous vegetable crops grown widely in Asia and Mediterranean region. Despite its economic importance, the availability of experimental populations and genomic tools for breeding is still very limited compared to other major crops. Due to the progressive alteration of global ecosystem by climate change, plants are constantly exposed to stressful environmental conditions that impact negatively on their productivity. The genetic bottleneck occurred during eggplant domestication, which limits the availability of genetic resources for its genetic improvement, makes this crop extremely vulnerable to climate change, and, therefore, new strategies are needed for reducing its genetic erosion. In this context, crop wild relatives (CWRs) have demonstrated to be a valid genetic resources for plant breeding, as their use allows to broaden the genetic diversity of the crop and, in parallel, develop improved varieties adapted to climate change. To achieve this objective, in this doctoral thesis we reported on the development and evaluation of eggplant advanced materials obtained by using crop wild relatives. In the first chapter, we have conducted a phenotypic evaluation in two environments of a set of 16 eggplant ILs with introgression from S. incanum, a close wild relative. Seventeen agronomic traits were scored to test the performance of ILs compared to the recurrent parent and identify QTLs for the investigated traits. We found significant morphological differences between parents, and the hybrid was heterotic for vigour related traits. Although significant genotype x environment interaction (G x E) was detected for most traits, the ILs generally exhibited few phenotypic differences with recipient parent, even in the presence of large introgression fragments from the wild parent. Low to moderate heritability values were found for the agronomic traits. In total, we detected ten stable QTLs, two of which were for plant-related traits and four for both flower- and fruit-related traits. In general, S. incanum introgressions improved the performance of most plant- and flower-related traits and decreased that of fruit-related traits. For three QTLs related to fruit pedicel length and fruit weight, we found evidence of synteny to other QTLs previously reported in eggplant populations. Seven QTLs were new, of which four related to plant height, flower calyx prickles, and fruit pedicel length, did not colocalized with any previous identified QTLs in eggplant populations, and three related to stem diameter, peduncle length, and stigma length, were the first reported in eggplant for these traits. In the second chapter, the set of eggplant ILs with introgression from S. incanum was evaluated for fruit shape in two environments. Specifically, we performed a detailed phenotyping of the fruits of the parents, hybrid, and ILs using 32 morphological descriptors of the phenomics tool Tomato Analyzer. Large differences in fruit morphology were found between ILs parents, and the hybrid exhibited negative values of heterosis for many fruit shape traits, being phenotypically closer to S. incanum parent. For most fruit shape descriptors, we observed significant differences between ILs and recipient parent, even in the presence of small wild donor fragments. Although the contribution of the environment and G × E interaction were significant for almost all descriptors, we found that their effects on fruit shape were relatively low, and the observed variations in fruit shape was mainly genetically regulated. Hierarchical clustering revealed nine clusters of highly correlated traits and six ILs groups. A total of 41 QTLs were mapped. Of these, sixteen associated to Basic Measurement and Fruit Shape Index descriptors were syntenic to other previously reported in several intraspecific and interspecific eggplant populations, while twenty-five QTLs related to Blockiness, Homogeneity.... This work was undertaken as part of the initiative “Adapting Agriculture to Climate Change: Collecting, Protecting, and Preparing Crop Wild Relatives”, which is supported by the Government of Norway. The project is managed by the Global Crop Diversity Trust with the Millennium Seed Bank of the Royal Botanic Gardens, Kew and implemented in partnership with national and international gene banks and plant breeding institutes around the world. For further information, see the project website: http://www.cwrdiversity.org/. Funding was also received from Spanish Ministerio de Economía, Industria y Competitividad and Fondo Europeo de Desarrollo Regional (grant AGL2015-64755-R from MINECO/FEDER); from Ministerio de Ciencia, Innovación y Universidades, Agencia Estatal de Investigación and Fondo Europeo de Desarrollo Regional (grant RTI-2018-094592-B-100 from MCIU/AEI/FEDER, UE); from European Union’s Horizon 2020 Research and Innovation Programme under grant agreement No. 677379 (G2P-SOL project: Linking genetic resources, genomes and phenotypes of Solanaceous crops); and from Vicerrectorado de Investigación, Innovación y Transferencia de la Universitat Politècnica de València (Ayuda a Primeros Proyectos de Investigación; PAID-06-18). Giulio Mangino is grateful to Generalitat Valenciana for a predoctoral grant within the Santiago Grisolía programme (GRISOLIAP/2016/012).
Average popularityAverage popularity In bottom 99%Average influencePopularity: Citation-based measure reflecting the current impact.Average influence In bottom 99%Influence: Citation-based measure reflecting the total impact.add Add to ORCIDPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.