6,113 research outputs found
DELTA 2000: Inventarisatie huidige situatie Deltawateren
No full textHet Zuidelijke Deltagebied is een uniek gebied waar water centraal staat. De karakteristieke eigenschappen van de watersystemen vormen het visitekaartje van de regio. Dit is een visitekaartje ingekleurd met zowel internationaal erkende natuurwaarden als met economische belangrijke sectoren als zeevaart en schelpdiervisserij en recreatie. Water kan ook bedreigend zijn; het handhaven van veiligheid tegen overstromingen blijft voortdurend een punt van aandacht. Met zoveel water kan het gebied terecht als Blauwe Delta worden aangeduid. Het project Blauwe Delta is onderverdeeld in verschillende deelprojecten waaronder gradiënten & peildynamiek, veiligheid, ontwikkelingen in de scheepvaart, en een literatuurstudie naar de aanwezige wetenschappelijke kennis, alsook naar het vigerende beleid voor de deltawateren. Het rapport wat u nu voor u heeft is het resultaat van deze literatuurstudie. Om overlap met de andere deelprojecten te voorkomen wordt waar nodig naar deze projecten verwezen. Achtereenvolgens worden de voornaamste kenmerken van de bekkens beschreven, opvallende zaken ten aanzien van het beheer, de functies van elk bekken worden geïnventariseerd en er wordt aangegeven welke eisen de functies aan het watersysteem stellen. Daarnaast is per bekken aandacht besteed aan \u91kansen en bedreigingen\u92 en \u91autonome ontwikkelingen en trends\u92. Geprobeerd is de kennisleemten aan te geven. Ieder hoofdstuk eindigt met een korte samenvatting. Eerst zijn de zoute bekkens behandeld , daarna de brakke en tenslotte de zoete bekkens. Binnen deze indeling is de volgorde alfabetisch. De volgende bekkens zijn besproken: - Gravelingenmeer - Oosterschelde - Voordelta - Westerschelde - Markiezaatsmeer - Veerse meer - Binnenschelde - Haringvliet en Hollandsche Diep - Volkerak/Zoommeer Ten slotte wordt de delta als geheel besproken.Blauwe Delt
Amfibisch wonen in de delta
No full textAlle signalen wijzen erop: onze manier van bouwen en wonen in de delta is op de lange termijn niet vol te houden. Onderzoeker milieutechnisch ontwerpen en universitair hoofddocent aan de TU Delft Fransje Hooimeijer pleit daarom voor een radicale herijking van het deltabeheer. Een ontwerpende, interdisciplinaire aanpak is de eerste stap om de Nederlandse delta in de toekomst veilig en leefbaar te houden. En ja, dat levert soms provocatieve ontwerpen op.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Environmental Technology and Desig
(re)Generation Delta: Landscape Strategy for a sustainably managed Pearl River Delta
No full textUrbanismArchitectur
UMBC Social Science Alumni in Government, Business, and Non-Profit Careers
No full textOn this episode we hear a rebroadcast of a special 5th anniversary event hosted by the UMBC Center for Social Science (CS3).
The roundtable, which took place in October of 2023, brought together three fabulous UMBC alumni from across the social sciences: Dr. Delta Merner, (GES ’14), Lead Scientist, Science Hub for Climate Litigation at the Union of Concerned Scientists; Dr. Brent Gibbons, (PUBL ’13), Health Policy Researcher in the Health Economics Program at RTI International; and Dr. Brittany Gay, (PSYC ’21), Associate Director of Implementation Science at the Research-to-Policy Collaboration (RPC). The roundtable was moderated by CS3’s Associate Director, Dr. Felipe Filomeno. Click here for a full recording of the event.https://socialscience.umbc.edu/episode-49
Contribution to the design of continuous -time Sigma - Delta Modulators based on time delay elements
No full textThe research carried out in this thesis is focused in the development of a new class of data converters for digital radio. There are two main architectures for communication receivers which perform a digital demodulation. One of them is based on analog demodulation to the base band and digitization of the I/Q components. Another option is to digitize the band pass signal at the output of the IF stage using a bandpass Sigma-Delta modulator. Bandpass Sigma- Delta modulators can be implemented with discrete-time circuits, using switched capacitors or continuous-time circuits. The main innovation introduced in this work is the use of passive transmission lines in the loop filter of a bandpass continuous-time Sigma-Delta modulator instead of the conventional solution with gm-C or LC resonators. As long as transmission lines are used as replacement of a LC resonator in RF technology, it seems compelling that transmission lines could improve bandpass continuous-time Sigma-Delta modulators. The analysis of a Sigma- Delta modulator using distributed resonators has led to a completely new family of Sigma- Delta modulators which possess properties inherited both from continuous-time and discretetime Sigma-Delta modulators. In this thesis we present the basic theory and the practical design trade-offs of this new family of Sigma-Delta modulators. Three demonstration chips have been implemented to validate the theoretical developments. The first two are a proof of concept of the application of transmission lines to build lowpass and bandpass modulators. The third chip summarizes all the contributions of the thesis. It consists of a transmission line Sigma-Delta modulator which combines subsampling techniques, a mismatch insensitive circuitry and a quadrature architecture to implement the IF to digital stage of a receiver
Delta Urbanism, Premises: Editorial
No full textThe title of this journal is the offspring of Han Meyer who started the interdisciplinary research movement Delta Urbanism about 25 years ago. The two words describe the concept that brings focus on an integrative and interdisciplinary approach in the planning, designing and engineering of urbanised deltas –fragile and highly dynamic landscapes at sea, in deltas, and in estuaries– facing extreme challenges from competing claims and interests. As discourse, it investigates the possibilities to combine flood resilience, soil regeneration and water management strategies with urban design, landscape architecture and spatial planning. Finally, as practice, it has the objective to improve spatial form, function, and performance and innovate urban systems in urban and metropolitan delta and coastal regions.The urgency for this novel approach is seen in the quest for a new dynamic equilibrium between urban growth, port- development, agriculture, environmental and ecological qualities, flood-defence systems and fresh-water supply. Delta Urbanism, as a field of interest and action, positions itself in this search of a new modernity: planning, designing and engineering the co-existence and equity between different forms of life and inhabitation and their reciprocity within the natural environment as a whole.Urban DesignEnvironmental Technology and DesignHydraulic Structures and Flood Ris
Voorbeeldenboek: Natuurvriendelijke oevers en waterberging
No full textSinds het begin van de jaren '90 worden er in het beheersgebied van waterschap Hollandse Delta op allerlei plaatsen natuurvriendelijke oevers en waterbergingsgebieden aangelegd. Deze oevers zijn goed voor de waterkwaliteit en vergroten het bergend volume van het watersysteem. Helaas is gebleken dat bij het maken van een inrichtingsplan voor zulke gebieden niet altijd voldoende rekening wordt gehouden met de manier waarop later het beheer en onderhoud moeten worden uitgevoerd. In voorliggend "voorbeeldenboek" zijn daarom enkele uitgevoerde projecten opgenomen. Deze zijn onderverdeeld in: 1. Flauwe oevers 2. Plasbermen 3. Poelen 4. Uitvoeringskwesties Het voorbeeldenboek geeft geen volledig en uitputtend overzicht van de gerealiseerde projecten, maar bevat een willekeurige selectie van uitgevoerde projecten waarvan toevallig zowel duidelijke foto's als ontwerptekeningen voorhanden waren
Delta Urbanism coming of age: 25 years of Delta Urbanism where are we now?
No full text‘Delta Urbanism’ is a common field of interest of different disciplines, which discovered the need to work together in order to be able to develop fruitful strategies for the future development of urbanized delta regions. The birth of this collaboration can be dated in the 1980s and 1990s, with the rise of three different fields of concern on the effects of industrial society: the concern on the environmental impact of industrialization, the concern on the alarming state of affairs of cities in these years, and the rising concern on climate change. The development of a real program of Delta Urbanism at TU Delft started in 2005, with the International Architecture Biennale Rotterdamon ‘the Flood’, the Katrina disaster in New Orleans and the start of the new Delta Program in the Netherlands as important driving forces. Important in the Delta Urbanism program is the search for a new ‘Darwinistic’ approach, emphasizing the evolutionary character of delta regions, and adaptivity as a main strategy to survive. This approach should substitute the traditional. Reductionist ‘Einstein’ approach, which is fitting in the dominating paradigm of the industrial society. Delta Urbanism itself can also be considered an evolutionary field of interest: it is under construction continuously. For the future, we can appoint four important issues to be elaborated: a more radical approach of the new adage ‘working with water’, water as a leverage for a complex society in transition; making delta landscapes adaptive, and design as an explorative method.Urban Desig
Flood Delta City Index: Drivers to Support Adaptation of Cities
No full textTo help decision makers in delta areas to select appropriate adaptation and mitigation strategies it is necessary to have a clear picture of the main drivers of risk and how risk evolves under changing conditions. Acknowledging these problems, the Delta Alliance and the TU Delft took the initiative to develop a new index that helps cities to better understand the dominant drivers of risk, formulate ambitions, and compare and share their results with other delta regions. The approach is based on previous work at TU Delft in collaboration with HKV and Deltares. The goal of this index is not to formulate an “exact” risk number, but aims to serve as a benchmark that supports communicating risk within the political arena and a peer-to-peer learning process with other deltas.Safety and Security ScienceOLD Urban Composition
Introduction. The Southwest Delta: Space for 'controlled dynamics'
No full textThe Southwest Delta is perhaps the most dynamic region in the low-lying Dutch Delta, both in terms of the dynamics of the relationship between water and land, and in terms of the dynamics of urban and economic growth and their consequences for land-use.OLD Urban Composition
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