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Moskeér i Danmark II: En ny kortlægning af danske moskeér og muslimske bedesteder

AU Library Scholarly Publishing Services Pub Date : 2017-12-21 DOI: 10.7146/AUL.239.171

Lene Kühle, M. Larsen

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引用次数: 4

Livslang aflæring og pædagogisk livskunst

AU Library Scholarly Publishing Services Pub Date : 2017-11-14 DOI: 10.7146/AUL.238.170

A. Sørensen

引用次数: 0

Influence of smectite content on the deformation behaviour of clay 蒙脱石含量对粘土变形特性的影响

AU Library Scholarly Publishing Services Pub Date : 2017-10-16 DOI: 10.7146/AUL.235.168

M. R. Lodahl

{"title":"Influence of smectite content on the deformation behaviour of clay","authors":"M. R. Lodahl","doi":"10.7146/AUL.235.168","DOIUrl":"https://doi.org/10.7146/AUL.235.168","url":null,"abstract":"A number of structures are planned to be constructed on or in the Palaeogene clays in Denmark, e.g. the re-development of Aarhus O and the construction of the Femern Fixed Link. The Palaeogene clays are generally of very high plasticity, hold low strengths and have high deformation potentials despite being previously compressed by past glaciations. When unloaded the clay adsorbs water and swells profoundly. These geotechnical traits pose a challenge and must be accounted for when designing a structure situated on high plasticity clays. When not considered, the features of the Palaeogene clay may pose a safety concern for the building and settlements may develop over time. Previous studies on Palaeogene clays in Denmark have shown, that the well-known index relations used in Danish geotechnical practice are generally not valid for the in situ behaviour of high plasticity clays. Moreover, several studies illustrates how the vertical yield stress derived from the compression curves of high plasticity clays does not reflect the previously sustained overburden, which normally is the case for clays of low to medium plasticity. The feature have been described as \"lack of stress memory\". The present thesis investigates the 1D deformation behaviour of high plasticity clays. The effects of the clay mineral smectite on the deformation and swelling potential of the high plasticity clays are of special focus. Based on 1D compression tests the deformation potential of a range of artificial specimens made from mixtures of kaolinite and smectite minerals were investigated. Features typically observed for Danish Palaeogene clays were also observed for the artificial mixtures, e.g. high plasticity and low stiffness, which have both been related to the smectite content in the tested, artificial specimens. Based on a number of tests, conducted following different loading programmes, a deformation model framework is presented which captures the essential features of the high plasticity clays. The model reproduces the compression curves obtained from testing of artificial specimens quite well and have also successfully been applied to reproduce compression curves from oedometer tests on intact natural highly plastic clays presented in literature. Based on the conducted tests it was observed that the lack of stress memory was related to the void ratio increase on a former unloading step, and thus directly affected by the smectite content of the specimen and the extent of unloading. It was also found that the compression potential in normally and overconsolidated conditions is dictated by smectite content but also affected by the length of the stress path followed during testing.","PeriodicalId":126978,"journal":{"name":"AU Library Scholarly Publishing Services","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114035394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Prototypiske situationer med brug af datavisualisering i skolen

AU Library Scholarly Publishing Services Pub Date : 2017-10-02 DOI: 10.7146/AUL.232.167

Jesper Bremholm, Uffe Thomas Jankvist, Ulf Dalvad Berthelsen, F. Holst

{"title":"Prototypiske situationer med brug af datavisualisering i skolen","authors":"Jesper Bremholm, Uffe Thomas Jankvist, Ulf Dalvad Berthelsen, F. Holst","doi":"10.7146/AUL.232.167","DOIUrl":"https://doi.org/10.7146/AUL.232.167","url":null,"abstract":"Denne rapport praesenterer i overbliksform en raekke beskrivelser af forskellige situati-oner og sammenhaenge hvor det vil kunne vaere relevant og udbytterigt for skolens fag-professionelle (laerere, paedagoger, AKT-vejleder m.fl.) at anvende datavisualiseringer i deres paedagogiske og didaktiske arbejde med henblik pa at styrke elevers progression savel fagligt som socialt. Beskrivelserne er udarbejdet af fagdidaktiske forskere fra DPU, Aarhus Universitet i samarbejde med laerere fra forskellige fag og klassetrin. Med datavisualisering menes at forskellige typer tilgaengelige data (fx om elevers trivsel og faglige praestationer) integreres, analyseres og repraesenteres i anskueliggorende di-gitale formater (visualiseringer). Et sadan paedagogisk datavisualiseringsredskab er pa rapportens affattelsestidspunkt ikke udviklet til brug i en dansk skolekontekst, og det er derfor vigtigt at understrege at de beskrevne prototypiske brugssituationer ikke er em-pirisk baserede, men derimod er taenkte eller forestillede scenarier. I beskrivelsen af si-tuationerne er navnet VisuData anvendt som betegnelse for dette taenkte digitale visua-liseringsredskab. Det er altsa vigtigt at holde sig for oje under laesningen af beskrivel-serne at VisuData pa affattelsestidspunktet ikke er en teknologi der faktisk findes. Rapporten er udarbejdet i tilknytning til Progressionsdataprojektet (ogsa kendt som Projekt vedrorende data om laerernes laering og progression) der fandt sted i perioden forar 2016 – efterar 2017 under ledelse af SFI og med deltagelse af bl.a. DPU og EVA. Udbudsgiver for projektet var Styrelsen for It og Laering (STIL), Undervisningsministeriet.","PeriodicalId":126978,"journal":{"name":"AU Library Scholarly Publishing Services","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132032442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

SALSA: A Formal Hierarchical Optimization Framework for Smart Grid SALSA:一种正式的智能电网分层优化框架

AU Library Scholarly Publishing Services Pub Date : 2017-09-25 DOI: 10.7146/AUL.231.166

Armin Ghasem Azar

{"title":"SALSA: A Formal Hierarchical Optimization Framework for Smart Grid","authors":"Armin Ghasem Azar","doi":"10.7146/AUL.231.166","DOIUrl":"https://doi.org/10.7146/AUL.231.166","url":null,"abstract":"The smart grid, by the integration of advanced control and optimization technologies, provides the traditional grid with an indisputable opportunity to deliver and utilize the electricity more efficiently. Building smart grid applications is a challenging task, which requires a formal modeling, integration, and validation framework for various smart grid domains. The design flow of such applications must adapt to the grid requirements and ensure the security of supply and demand. This dissertation, by proposing a formal framework for customers and operations domains in the smart grid, aims at delivering a smooth way for: i) formalizing their interactions and functionalities, ii) upgrading their components independently, and iii) evaluating their performance quantitatively and qualitatively. The framework follows an event-driven demand response program taking no historical data and forecasting service into account. A scalable neighborhood of prosumers (inside the customers domain), which are equipped with smart appliances, photovoltaics, and battery energy storage systems, are considered. They individually schedule their appliances and sell/purchase their surplus/demand to/from the grid with the purposes of maximizing their comfort and profit at each instant of time. To orchestrate such trade relations, a bilateral multi-issue negotiation approach between a virtual power plant (on behalf of prosumers) and an aggregator (inside the operations domain) in a non-cooperative environment is employed. The aggregator, with the objectives of maximizing its profit and minimizing the grid purchase, intends to match prosumers' supply with demand. As a result, this framework particularly addresses the challenges of: i) scalable and hierarchical load demand scheduling, and ii) the match between the large penetration of renewable energy sources being produced and consumed. It is comprised of two generic multi-objective mixed integer nonlinear programming models for prosumers and the aggregator. These models support different scheduling mechanisms and electricity consumption threshold policies. The effectiveness of the framework is evaluated through various case studies based on economic and environmental assessment metrics. An interactive web service for the framework has also been developed and demonstrated.","PeriodicalId":126978,"journal":{"name":"AU Library Scholarly Publishing Services","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128716579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Eksistensanalyse som pædagogik

AU Library Scholarly Publishing Services Pub Date : 2017-09-22 DOI: 10.7146/AUL.230.165

A. Sørensen

引用次数: 0

Aristoteles fra lægekunst til livskunst

AU Library Scholarly Publishing Services Pub Date : 2017-08-25 DOI: 10.7146/aul.228.164

A. Sørensen

引用次数: 0

Normalitetens filsosofi og idéhistorie 常态哲学和思想史

AU Library Scholarly Publishing Services Pub Date : 2017-08-04 DOI: 10.7146/AUL.218.159

Anders Dræby Sørensen

引用次数: 0

Geoarkæologiske undersøgelser af plantenæringsstoffer i de forhistorisk dyrkningssystemer ved Østerild

AU Library Scholarly Publishing Services Pub Date : 2017-08-02 DOI: 10.7146/AUL.216.158

S. Kristiansen

{"title":"Geoarkæologiske undersøgelser af plantenæringsstoffer i de forhistorisk dyrkningssystemer ved Østerild","authors":"S. Kristiansen","doi":"10.7146/AUL.216.158","DOIUrl":"https://doi.org/10.7146/AUL.216.158","url":null,"abstract":"For Muesum for Thy og Vester Hanherred er der undersogt hvorvidt der kan observe-res hvor meget, og i sa fald med hvad et marksystem ved Osterild dateret til lige om-kring 500 ar f.Kr., dvs. pa overgang mellem bronze- og jernalder, har vaeret godsket. For at belyse dette, er jordprover indsamlet ved molleplads 7 som var datidens land-brugsland (dvs. indmark), og som reference, Molleplads 3 som tolkes som datidens graesningsoverdrev (dvs. udmark) ud godskning. Der er anvendt en ny multigrund-stofs baseret tilgang til at belyse tilforslen af godning til markerne, og ikke blot den traditionelle metode baseret pa fosfat alene. Jordproverne er indsamlet fra udvalgte horisonter, torret, nedknust og oplost vha. 4-syrer inden 36 grundstoffer er analyse-ret i syreudtraekket ha. ICP-MS metoden. Derudover er jordens tekstur bestemt samt C og N. Endelig er en samlet multivariat statistisk analyse (PCA) lavet pa dataene in-den en geoarkaeologiske tolkning af de samlede resultater. Dataene viser, at al flyvesandet kun har faet indblandet meget lidt sand- og gruspartikler fra omrader hvor der ikke findes helt den samme flyvesand. Indholdene af kulstof og kvaelstof viser ikke noget entydigt billede pga. de varierende bevarings-forhold siden jernalderen, men forskelle i indholdet af traekul bor undersoges naer-mere for evt. indflydelse pa datidens dyrkningspotentiale. Der er kun sma forskelle i indholdene af plantenaeringsstoffer imellem de pro-ver vi har fra ind- og udmarkerne pa stedet, og ikke nogle som er signifikant forskel-lige. PCA analysen viste at de tidligere dyrkede jorde var en adskilt gruppe fra de ikke-dyrkede jorde. Indbydes relationer imellem de forskellige grundstoffer i jordpro-verne kunne alene tolkes som geologisk betinget.","PeriodicalId":126978,"journal":{"name":"AU Library Scholarly Publishing Services","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116679806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Pædagogikken som livskunst og livslang aflæring

AU Library Scholarly Publishing Services Pub Date : 2017-08-02 DOI: 10.7146/AUL.217.157

Anders Dræby Sørensen

引用次数: 0