1,720,975 research outputs found
Set-Based Development of an Autonomous Waste Collection System for Unmanned Surface Vessels
No full textDen økende utfordringen med marint avfall utgjør en betydelig trussel mot økosystemer og klima. Hvert år havner millioner av tonn avfall I alle verdens hav og forårsaker skade i en grad vi ennå ikke vet konsekvensene av. Innovasjon innen teknologi gir en unik mulighet til å bekjempe dette problemet. Utviklingen av autonome ubemannede overflatefartøyer (USV) for avfalls håndtering er en foreslått løsning for å hjelpe til med å løse problemet. Dette arbeidet er motivert av å utnytte teknologi for bidra mot et renere, sunnere marint miljø og, til syvende og sist, en mer bærekraftig fremtid for planeten vår.
Denne oppgaven utforsker det spennende potensialet ved å håndtere marint avfall ved hjelp av USV-er, og fokuserer spesifikt på å utvikle et mekanisk system for en spesifikk USV. Dette unike systemet er designet for aktivt å finne, samle, transportere og deponere gjenstander som flyter i vannoverflaten. Prosjektet er en del av et pågående prosjekt av Clean Sea Solutions, tett knyttet til Norges teknisk-naturvitenskapelige universitet (NTNU). Studien ser på rasjonelle funksjons-, bruker- og ytelseskrav for å skape et optimalt design. Studien kombinerer eksisterende produktutviklingstilnærminger med innovative løsninger, som resulterer i et designforslag som er unikt, innovativt og mer effektivt enn lignende prosjekter. Set-Based Concurrent Engineering (SBCE) har blitt brukt som den primære produktutviklingsstrategien, som gjorde det mulig å utforske og begrense flere designalternativer samtidig, redusere designrisiko og ta velinformerte beslutninger. Denne forskningstilnærmingen kan potensielt være en inspirasjon for tilsvarende fysiske produktutviklingsprosjekter. Selv om prosjektet fortsatt er utsatt for noen teknologiske hull, belyser dette prosjektet en lovende vei for å bruke teknologi for å møte miljøutfordringer. Denne designen takler ikke bare fysisk avfall, men gir også rom for å oppdage andre mulige bruksområder. Det endelige designforslaget har bevist sin gyldighet ved å utføre testing under realistiske driftsforhold. Det kommer også frem at prosjektet har bidratt til å løfte Teknologimodenheten (TRL) flere steg gjennom denne utviklingen.The escalating challenge of marine waste presents a significant threat to our ecosystems and climate. Each year, millions of tons of waste, end up in our oceans, causing harm to an extent we do not yet know the consequences of. Innovations in technology provide a unique opportunity to combat this issue. The development of autonomous Unmanned Surface Vessels (USVs) for waste collection is a proposed solution to help address the problem. This work is motivated by a commitment to leveraging technology to the global efforts towards a cleaner, healthier marine environment and, ultimately, a more sustainable future for our planet.
This thesis explores the exciting potential of managing marine waste using USV's, focusing specifically on developing a mechanical system for a specific USV. This unique system is designed to actively find, collect, transport, and dispose of objects floating on the water's surface. The project is part of ongoing research by Clean Sea Solutions, linked closely with the Norwegian University of Science and Technology (NTNU). The study looks into rational function, user, and performance requirements to create an optimal design. The study combines existing product development approaches with innovative solutions, that result in a design proposal that is unique, innovative, and more efficient than similar projects. Set-Based Concurrent Engineering (SBCE) has been employed as the primary product development strategy, which allowed for exploring and narrowing down multiple design options concurrently, reducing design risks and making well-informed decisions. This research approach could potentially be an inspiration for corresponding physical product development projects. While the project still is prone to some technological gaps, this project illuminates a promising path for using technology to address environmental challenges. This design not only tackles physical waste but also leaves room for discovering other possible applications. The final design proposal has proven its validity by performing testing under realistic operating conditions. It also emerges that the project has contributed to lifting the Technology Readiness Level (TRL) several steps through this development
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Customer-focused development practices in Systems Engineering companies: A case study across industry sectors
No full text
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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