166 research outputs found
Vibration of Bundled Conductors Following Ice Shedding
No full textThe dynamic behavior of bundled conductors following ice shedding from one subconductor is examined numerically using the finite-element method. An existing model of ice shedding from a single conductor is improved by developing a model of spacers which connect subconductors in the span. The resulting system makes it possible to simulate vibrations following ice shedding from one span of an overhead transmission line with twin, triple, or quad bundles. Vibration characteristics are evaluated as the following parameters are varied: thickness of shed ice, distance between adjacent spacers, and number of subconductors in the bundle. Simulation results will provide information on how the amplitude of vibration and the transient dynamic forces change with the application of spacers. The maximum jump height of the ice-shedding cable, the maximum drop of the loaded cable, and the maximum cable tension are approximated as power functions of ice thickness and the distance between adjacent spacers
Scanning tunneling microscopy and spectroscopy studies of graphene
No full textIn the two-dimensional (2D) lattice of graphene, consisting of carbon atoms arranged in a honeycomb lattice, the charge carriers are described by a Dirac-Weyl Hamiltonian. Seeking to understand their unique nature, this thesis presents results of scanning tunneling microscopy (STM) and spectroscopy (STS) experiments at low temperatures and in magnetic fi eld. These techniques give access, down to atomic scales, to structural information as well as to the electronic properties of graphene. The main findings include the observation of quantized Landau levels (LL) in the presence of magnetic field, their dependence on carrier density and e ffects of charged impurities and other disorder on the LL spectrum. Twisting graphene layers away from the equilibrium Bernal stacking leads to the formation of Moir e patterns that signi ficantly alter the electronic properties of graphene stacks. The second part of the thesis discusses the eff ects of such rotations on the electronic properties as a function of twist angle.Ph. D.Includes bibliographical referencesby Adina Luican-Maye
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Improving the Epidemiological Understanding of the Dynamic Relationship Between Life Course Financial Well-being and Health (vol 6, pg 28, 2019)
No full textThe original version of this article unfortunately contained a mistake. The name of the third author should be presented as "First name: Adina" "Last name: Zeki Al Hazzouri" and should be cited as Zeki Al Hazzouri, A
Approaches to Monitoring and Evaluation Strategy Development
No full textThe Handbook aims to provide decision-makers with a comprehensive NBS impact assessment framework, and a robust set of indicators and methodologies to assess impacts of nature-based solutions across 12 societal challenge areas: Climate Resilience; Water Management; Natural and Climate Hazards; Green Space Management; Biodiversity; Air Quality; Place Regeneration; Knowledge and Social Capacity Building for Sustainable Urban Transformation; Participatory Planning and Governance; Social Justice and Social Cohesion; Health and Well-being; New Economic Opportunities and Green Jobs. Indicators have been developed collaboratively by representatives of 17 individual EU-funded NBS projects and collaborating institutions such as the EEA and JRC, as part of the European Taskforce for NBS Impact Assessment, with the four-fold objective of: serving as a reference for relevant EU policies and activities; orient urban practitioners in developing robust impact evaluation frameworks for nature-based solutions at different scales; expand upon the pioneering work of the EKLIPSE framework by providing a comprehensive set of indicators and methodologies; and build the European evidence base regarding NBS impacts. They reflect the state of the art in current scientific research on impacts of nature-based solutions and valid and standardized methods of assessment, as well as the state of play in urban implementation of evaluation frameworks.Heritage & Technolog
Pictorial Interview of Children’s Metacognition and Executive Functions (PIC–ME): A Comparison Between Children With and Without Attention Deficit Hyperactivity Disorder
No full textAbstract
Date Presented 3/30/2017
The Pictorial Interview of Children’s Metacognition and Executive Functions (PIC–ME) was designed to evaluate self-perception of executive function challenges in daily life among children with attention deficit hyperactivity disorder and to promote their engagement in goal setting. Results support the initial reliability and validity of the PIC–ME.
Primary Author and Speaker: Ruthie Traub Bar-Ilan
Contributing Authors: Adina Maeir</jats:p
Towards a theory of denominals in English and Romanian
No full textThe aim of this thesis is two-fold. On the one hand, it has a descriptive purpose, as it strives to capture the differences between denominal verbs in English and Romanian from a descriptive point of view by looking at significant data: a database of English denominal verbs created by Clark & Clark (1979), a database of Romanian denominal verbs created by the author of this thesis on the basis of a bilingual dictionary (Halvorsen 2007). An essential difference is the fact that, while English denominals have the same form as the bare noun they derive from (dance-dance, butter-butter, corral-corral, hammer-hammer), Romanian denominals have a different form: while the noun has the form dans, the verb is dansa, with an additional suffix indicating the declension. Moreover, denominals are very productive in English, whereas they are not in Romanian: there is no correspondent for the verb to shelve, for instance; instead, Romanian uses the periphrastic a pune pe raft ‘to put on shelf’.
On the other hand, the thesis has a theoretical purpose. It aims at clarifying the notion of denominal verb, at presenting the analyses that have been proposed as accounts of denominals in the literature (Hale & Keyser 1998, 2002, Mateu 200, 2002, Ramchand 2008 a.o.), but it also aims at putting forth a novel approach starting from the nanosyntactic framework (Starke 2001, 2009, Caha 2009, Pancheva 2011), according to which lexical items may target phrasal nodes. I have embraced Ramchand’s (2008) analysis of verbs along the tripartition InitiationP, ProcessP, resultP, together with Svenonius’s (2007) and Pantcheva’s (2011) nanosyntactic decomposition of spatial prepositions (as RouteP>SourceP>GoalP>PlaceP>N). Thus, an item such as the denominal corral (the horses), paraphrased as ‘put the horses in the corral’ may be argued to spell out InitP, ProcP, GoalP, PlaceP, N, an item such as the verb dance, paraphrased as ‘do a dance’ may be argued to spell out InitP, ProcP, N, whereas pseudoagentive verbs like spy spell out InitP, ProcP, PP, N, as also indicated by the paraphrase ‘act like a spy’. As for instrument verbs such as hammer, it may be argued they spell out InitP, ProcP, PP, N, if one thinks of a paraphrase such as ‘hit with a hammer’, or even InitP, ProcP, N, if one embraces a ‘use a hammer’ paraphrase. A similar proposal is adopted for Romanian denominals. In the various analyses I provided throughout the thesis, I sometimes tried to make use of silent items such as the silent prepositions IN, ON or the silent preposition WITH. Such silent items feed the structure with meaning which cannot be otherwise captured by the projections, given that they are not fine-grained enough. Moreover, interestingly, the lexical item lexicalizing the extremity (initP) will never be used in the actual language as a spell out of Proc or Goal or Place. Such a gap can be argued to be verb-specific. If, on the other hand, one postulates silent items, the absence of a preposition corral or a preposition hammer could be explained by the presence of a silent item IN or WITH lexicalizing the GoalP or the PP.
A Phrasal Spell-Out account is a viable option for explaining the formation of denominals. However, it has its problems and limits. If one take an example such as Linda danced into the room, embacing the nanosyntax way of storing items as trees in the lexicon would lead to the conclusion that the item dance into has to be stored in the lexicon, just as all the other manner verbs in English combining with a GoalP. This would result in a burdensome lexicon, which is undesirable and can be avoided if one adopts a view where syntax exists as a module per se, distinct from the lexicon.
All in all, the thesis discusses a novel approach to denominals, applying it to verbs in English and Romanian, and trying to see to what extent such an approach can capture their formation and behaviour
Enterprise strategic alignment method: a cross-disciplinary capability-driven approach
No full textThe environment of organisations is changing more rapidly in the recent years, which makes it increasingly more difficult to stay competitive. Organisations need to ensure that when they make transformations, they focus on maintaining or improving their strategic alignment. However, the current research is not sufficient for addressing these needs, mainly due to a lack of cross-disciplinary knowledge. The Enterprise Strategic Alignment Method (ESAM) is designed to help organisations improve their strategic alignment by combining information from four different disciplines, namely Strategic Management, Capability-based planning, Enterprise Architecture, and Portfolio Management. The focus of the ESAM is on the collaboration between different stakeholders within an organisation, with an emphasis on improving communication, facilitating better partnerships, supporting improved governance, promoting an integrated architecture, and ensuring an alignment between the different types of organisational measurements. The ESAM has been validated and evaluated with the help of three very distinct case studies, in terms of organisation type and scope of the case study. The results indicate that the method has had a positive influence on aspects relating to communication, which are identified by literature as enablers of strategic alignment, while other aspects have proven to be situational. The ESAM is also supported by a software tool (a management dashboard template, several canvases, and a strategy design tool) and by two serious games (one board game and one computer game)
A method to facilitate enterprise architecture continuous improvement
No full textLAUREA MAGISTRALECon la globalizzazione, il breve ciclo di vita del prodotto e il progresso delle moderne tecnologie, la sopravvivenza e la competitività delle organizzazioni dipendono dall'adattamento, dall'innovazione e dalla risposta rapida. Nonostante l'agilità sia considerata un fattore cruciale di successo per le aziende, è stato fatto meno lavoro per aiutare le organizzazioni a trasformarsi in agili, sfruttando le sfide e trasformandole in opportunità. Gli attuali lavori per facilitare questa trasformazione senza intoppi si concentrano sull'allineamento business-IT poiché né il business né l'IT possono aprire la strada al successo individualmente. In questo lavoro, ci siamo concentrati su uno dei più famosi strumenti di allineamento business-IT, Enterprise Architecture. Nonostante si sostenga che facilitino l'allineamento tra business e IT e, in definitiva, l'agilità, la natura complessa di questi modelli e i lunghi tempi di sviluppo impediscono loro di trattare l'agilità. Quindi, sviluppiamo un metodo per facilitare lo sviluppo continuo di Enterprise Architecture risolvendo il loro problema di complessità. Nello sviluppo del nostro metodo, combiniamo vari approcci e mettiamo insieme conoscenze sparse. Mettiamo l'accento su aspetti cruciali come la comunicazione e la collaborazione che vengono per lo più ignorati. Poiché questi modelli fungono da strumenti primari per illustrare l'impatto del cambiamento e la gravità, facilitare il loro sviluppo continuo ha un impatto drastico sui tempi di decisione. Attraverso questo approccio, forniamo ai decisori le informazioni necessarie per prendere decisioni importanti in modo rapido e informato. Sottolineiamo che le decisioni rapide non sono necessariamente buone. La capacità dei decisori di prendere rapidamente buone decisioni dipende dal livello di informazioni che pongono.With globalization, short product life cycle, and advancement of modern technologies, organizations' survival and competitiveness depend on adapting, innovating, and responding quickly. Despite the fact that agility is considered a crucial success factor for companies, less work has been done to assist organizations in transforming into agile, exploiting challenges, and turning them into opportunities. Current works on facilitating this smooth transformation focus on business-IT alignment as neither business nor IT can pave the road to success individually. In this work, we have focused on one of the most famous business-IT alignment tools, Enterprise Architecture. Despite being claimed to facilitate business-IT alignment and ultimately agility, these models' complex nature and long development time prevent them from treating agile. Hence, we develop a method to facilitate Enterprise Architecture continuous development by resolving their complexity issue. In developing our method, we combine various approaches and bring scattered knowledge together. We put the emphasis on the crucial aspects such as communication and collaboration that are mostly ignored. Since these models serve as the primary tools for illustrating the impact of change and the severity, facilitating their continuous development drastically impacts the decision time. Through this approach, we provide the decision makers with the information required to make important decisions quickly and informed. We emphasize that quick decisions are not necessarily good ones. Decision-makers' ability to make good decisions quickly depends on the level of information they pose
A Measurement Instrument for Enterprise Architecture Resilience Research: A Pilot Study on Digital Transformation
No full textEnterprise Architecture can contribute positively to enterprise resilience. In this connected dynamic world Enterprise Architecture Resilience is an emergent area of Information Systems research that is characterized through an abundance of conceptual work with little empirical research. To fill this gap, this paper reports on the development and validation of an instrument to measure various resilience attributes and barriers in context to digital transformation in organizations. We advance an extended model for a multi-stage measurement instrument development procedure, which incorporates feedback from both academics and practitioners. We identify two main contributions: First, we provide a validated measurement instrument for the study of Enterprise Architecture Resilience factors in context to digital transformation in organizations, which can be used to assist in further empirical studies that investigate phenomena associated with the enterprise architecture domain. Second, in doing so, we describe in detail a procedural model for developing measurement instruments that ensure high levels of reliability and validity, which may assist fellow scholars in executing their empirical research
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