Search results for "DSO"

Comparison of adsorption properties of commercial silica and rice husk ash (RHA) silica: A study by NIR spectroscopy

2021

Abstract Adsorption properties of Silica gel (commercial silica), rice husk ash (RHA) silica, and their hydrothermally treated products towards water molecules were studied in this work. RHA silica was prepared by heating rice husk to 650°C for 4 h after pretreatment with hydrochloric acid. Portions of the samples of silica were evacuated at 200℃ and then allowed to adsorb water molecules from the surrounding air at either 42 or 50% humidity. The near infrared spectra of these samples were measured at different time intervals during their adsorption of water molecules. The evolved near infrared spectra were analyzed using second derivative techniques. Adsorption properties of these samples …

How do different network positions affect crowd members' success in crowdsourcing challenges?

2023

In the crowdsourcing challenges, crowd members can interact with each other by, for example, chatting, exchanging feedback, providing advice, discussing, and commenting on ideas. These social interactions shape a network structure, which is a set of social relationships developed by crowd members. This study aims at investigating how occupying diverse network positions within a crowdsourcing challenge network increases the members' likelihood to succeed in a competition. Leveraging prior literature on social networks and crowdsourcing research, we theorize how central and structural hole network positions influence the crowd members' likelihood of winning crowdsourcing challenges by leverag…

Etat de l’art et enjeux du community management sur les plateformes de Crowdfunding

2014

L'étude de cinq mois réalisée sous la direction d'Olivier Galibert par le Cimeos en collaboration avec idStarter, puis la collaboration entre septembre et octobre 2014 entre Arnaud Belorgey (porteur du projet de création d'entreprise IdStarter) et Nicolas Peirot (Jeune chercheur au CIMEOS) ont été l'occasion de dresser un état de l'art du community management dans le cadre de dispositifs de crowdsourcing et de crowdfunding, de mettre en place une observation de communautés en acte sur trois campagnes de crowdfunding, mais aussi de préciser l’offre de la société idStarter.Ce travail a donné lieu à une série d'enseignements en matière de "community management créatif".

‘To own or not to own?’ A study on the determinants and consequences of alternative intellectual property rights arrangements in crowdsourcing for in…

2018

Due to copyright restrictions, the access to the full text of this article is only available via subscription. Firms are increasingly engaging in crowdsourcing for innovation to access new knowledge beyond their boundaries; however, scholars are no closer to understanding what guides seeker firms in deciding the level at which to acquire rights from solvers and the effect that this decision has on the performance of crowdsourcing contests. Integrating property rights theory and the problem-solving perspective while leveraging exploratory interviews and observations, we build a theoretical framework to examine how specific attributes of the technical problem broadcast by firms affect the see…

Translating Migration in the Visual Arts: Calais Children and Project#RefugeeCameras as Collaborative Counter Narratives

2019

This study investigates the modalities through which the migrant crisis is portrayed in the creative artistic sector while accelerating the spread of political participatory and activist movements in the areas of subtitling and amateur translation. Participation and activism have stimulated the sphere of translation that has been acting as an important stimulus for the international mushrooming of artistic creativities on public spaces and digital platforms, and also for a different political and cultural reframing of the migrant crisis. 21 st -century mobility has made translation a crucial device for the negotiation of linguacultural transactions within cultural institutions, public space…

Pilsoņu likumdošanas digitālās platformas ManaBalss.lv izvērtējums

2018

Bakalaura darba temats ir “Pilsoņu likumdošanas digitālās platformas ManaBalss.lv izvērtējums”. Autors ar šī pētījuma mērķi vēlas noskaidrot, kāds ir bijis iemesls šādas kolektīvās inteliģences platformas izveidei un to, vai platforma ir sasniegusi savu dibināšanas mērķi. Darba gaitā tika noskaidrots, kas ir kolektīvā inteliģence un tās sniegtās iespējas. Ar interviju palīdzību, tika veikts ManaBalss.lv platformas izvērtējums – tās mērķis, vai mērķis ir sasniegts, vai platforma veicina pilsoņu līdzdalību demokrātiskajos procesos. Darba gaitā izvirzītā hipotēze apstiprinājās – kolektīvās inteliģences platforma ManaBalss.lv ir sasniegusi savus mērķus.

Tailoring oxide properties: An impact on adsorption characteristics of molecules and metals

2014

Abstract Both density functional theory calculations and numerous experimental studies demonstrate a variety of unique features in metal supported oxide films and transition metal doped simple oxides, which are markedly different from their unmodified counterparts. This review highlights, from the computational perspective, recent literature on the properties of the above mentioned surfaces and how they adsorb and activate different species, support metal aggregates, and even catalyse reactions. The adsorption of Au atoms and clusters on metal-supported MgO films are reviewed together with the cluster׳s theoretically predicted ability to activate and dissociate O 2 at the Au–MgO(100)/Ag(100…

Metronidazole/montmorillonite nanodevices for controlled drug delivery

2014

Is it a tool or a toy? How user's conception of a system’s purpose affect their experience and use

2019

The boundary between hedonic and utilitarian information systems has become increasingly blurred during recent years due to the rise of developments such as gamification. Therefore, users may perceive the purpose of the same system differently, ranging from pure utility to pure play. However, in literature that addresses why people adopt and use information systems, the relationship between the users conception of the purpose of the system, and their experience and use of it has not yet been investigated. Therefore, in this study we investigate the interaction effects between users’ utility-fun conceptions of the system and the perceived enjoyment and usefulness from its use, on their post-…

Protocol: A literature review about the use of crowdsourcing in educational environments

2016

<p>The objective with the protocol described in this paper is to review the existing literature in relation to the implementation of crowdsourcing in educational environments. It seeks to give answer to 4 questions. First, it seeks to answer the question of which kind of crowdsourcing initiatives are more appropriate to be used for educational activities. In second place it’s important to find out whether there is any particular discipline in which crowdsourcing, by its nature, can be applied more naturally. Third, it seeks to identify which factors influence both positively and negatively in the teaching/learning experience using crowdsourcing. Finally, the last question to answer, t…