1,348 research outputs found
Nitrate And Bicarbonate Selective Chemfets
The development of durable anion selective CHEMFET micro sensors is described. Selectivity in these sensors is either obtained from differences in hydration energy of the anions (the Hlofmeister series, giving nitrate selectivity) or by introduction of a new class of uranyl salophene ionophores (bicarbonate selectivity). The durability of the nitrate sensor was enhanced by using polysiloxane membranes in which 1 cationic tetraalkylammonium sites were covalently bound to the membrane matrix
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Sensor Grid Design For High Resolution 3D Acoustic Measurements Of Musical Instruments.
Much of the research undertaken in the field of musical acoustic analysis involves (electro)mechanical actuation of the instruments under measurement conditions without the musician present. This has the benefit of repeatability, so that apparatus can be designed in order to make asynchronous measurements at different points in 3D space. It also means that the instrument is analysed in its pure form without any acoustic aberrations presented by a human performer. However it has been found that when a musician performs on the instrument, this repeatability is absent (despite the musician’s self-belief in their own consistency) and an alternative approach must be taken to make 3-dimensional acoustic measurements with the musician present. Musicians could of course be present during actuated musical instrument analysis but this is not (yet) a common approach. The research project described in this paper is ongoing and recent developments of sensor grid geometry are presented here along with some promising initial results. The sensor array geometry has been investigated with respect to: optimal spacing, minimising errors in data interpolation at high frequency, and practicality for construction and actual use. Some preliminary data from a section of the array grid has been obtained and is presented here in order to demonstrate the robustness of the data at high frequencies. There is some discussion of the likely errors in interpolation of the data and some further ideas are explored regarding the manipulation of the recorded data
Quality of Democracy in Quadruple Helix Structures: The Quality of Democracy in the United States and in Austria, Challenges and Opportunities for Development. ACES Working Papers, 2012
This contribution focuses on analyzing the quality of democracy of the United States (U.S.) and of Austria by using a comparative approach. Even though comparisons are not the only possible or legitimate method of research, this analysis is based on the opinion that comparisons provide crucial analytical perspectives and learning opportunities. Following is the proposition, put directly forward: national political systems (political systems) are comprehensively understood only by using an international comparative approach. International comparisons (of country-based systems) are common (see the status of comparative politics, for example in Sodaro, 2004). Comparisons do not have to be based necessarily on national systems alone, but can also be carried out using “within”-comparisons inside (or beyond) sub-units or regional sub-national systems, for instance the individual provinces in the case of Austria (Campbell, 2007, p. 382)
FARM LEVEL CONSEQUENCES OF CANADIAN AND U.S. DAIRY POLICIES
Agricultural and Food Policy, Livestock Production/Industries,
Novel water-soluble b-cyclodextrin-calix[4]arene couples as fluorescent sensor molecules for the detection of neutral analytes
Strukturen und Modelle der Forschungsfinanzierung in Deutschland: Eine Policy-Analyse
Abstract: This paper focuses on the financing patterns of R&D (research and experimental development) in Germany. Primarily it reflects the experiences of West Germany and the method of our analysis is based on expert interviews, of which most were carried out in December 1992. A twofold approach was followed. (1) Firstly, the structural framework of the German R&D system, and its financing, is described with a particular emphasis on the policy profiles of the DFG (German Research Society) and the BMFT (Federal Ministry of Research and Technology). Additionally, we also covered the latest trends in the financing of academic research. (2) Secondly, we aimed at three German success models for the financing of R&D. These are: - The Verbund-Research (Collaborative Research) of the BMFT: Within this scheme academic and industrial research partners are linked and the BMFT only partially finances those clusters (the threshold of financing for the BMFT is 50 Prozent). - The Fraunhofer-Gesellschaft (FhG/Fraunhofer Society): The FhG, a non-university research network, has a mixed funding base, consisting of three components - public basic funding, public contract funding and private (industrial) contract funding. - The implementation of foundations: The two major German foundations, the Volkswagen Foundation (VW-Stiftung) and the Environment Foundation (Umwelt-Stiftung), originated from the privatization of public industrial ownership. The German foundations play a key role for the financing of R&D and developed, through a special policy profile, a division of labor with the public institutions (like the DFG and BMFT).
Modeling Quantitative Value of Habitats for Marine and Estuarine Populations
Coastal habitats (e.g., seagrass beds, shallow mud and sand flats) strongly influence survival, growth, and reproduction of exploited marine fish and invertebrate species. Many of these species have declined over the past decades, coincident with widespread degradation of coastal habitats, such that an urgent need exists to model the quantitative value of coastal habitats to their population dynamics. Demand for habitat considerations will increase as fisheries management contends with habitat issues in stock assessments and management in general moves towards a more ecosystem-based approach. The modeling of habitat function to support fishery species has, to date, been done on a case-by-case basis involving diverse approaches and types of population models, which has made it difficult to generalize about methods for incorporating habitat into population models. In this review, we offer guiding concepts for how habitat effects can be incorporated in population models commonly used to simulate the population dynamics of exploited fish and invertebrate species. We categorize population models based on whether they are static or dynamic representations of population status, and for dynamic, further into unstructured, age/size class structured, and individual-based. We then use examples to illustrate how habitat has been incorporated, implicitly (correlative) and explicitly (mechanistically), into each of these categories. We describe the methods used and provide details on their implementation and utility to facilitate adaptation of the approaches for other species and systems. We anticipate that our review can serve as a stimulus for more widespread use of population models to quantify the value of coastal habitats for exploited species, so that their importance can be accurately realized and to facilitate cross-species and cross-system comparisons. Quantitative evaluation of habitat effects in population dynamics will increasingly be needed for traditional stock assessments, ecosystem-based fisheries management, conservation of at-risk habitats, and recovery of overexploited stocks that rely on critical coastal habitats during their life cycle
Inland extent of the Weddell Sea Rift imaged by new aerogeophysical data
Peer reviewedPostprin
The internal layering of Pine Island Glacier, West Antarctica, from airborne radar-sounding data
This paper presents an overview of internal layering across Pine Island Glacier, West Antarctica, as measured from airborne-radar data acquired during a survey conducted by the British Antarctic Survey and the University of Texas in the 2004/05 season. Internal layering is classified according to type (continuous/discontinuous/missing) and the results compared with InSAR velocities. Several areas exhibit disruption of internal layers that is most likely caused by large basal shear stresses. Signs of changes in flow were identified in a few inter-tributary areas, but overall the layering classification and distribution of layers indicate that only minor changes in ice-flow regime have taken place. This is supported by bed-topography data that show the main trunk of the glacier, as well as some of the tributaries, are topographically controlled and located in deep basins
A case study: the rehabilitation of residential buildings in Parque Alcosa district, analysis of common diseases and intervention proposal
La barriada del Parque Alcosa se localiza en el noroeste del núcleo urbano de Sevilla, y está formada por un conjunto de 10.640 viviendas de promoción pública construida durante los años 69-72 por el constructor valenciano Alfredo Corral. Existen tres modelos de edificación diferentes que responden a fases de construcción, siendo objeto de estudio en este
artículo la correspondiente a la primera fase, comprendidas por las calles Ciudad de Játiva, Gandía, Sueca, Onteniente, Carcagente, Burjasot, Godella, Alfafar, Buñol, Paterna y Oliva. El presente trabajo expone el análisis de las patologías constructivas comunes existentes en la fase 1 del Parque Alcosa, relacionadas con el carácter potencialmente expansivo de
los terrenos donde se ubica. Así mismo se desarrollan las soluciones constructivas de la intervención proyectada, llevado a cabo mediante el programa de Rehabilitación Singular de Edificios de la Empresa Pública del Suelo de Andalucía.The Parque Alcosa district is located in northwestern area of Seville. It consists of 10,640 public housing development,that was promoted throughout the years 69-72 by the builder Alfredo Corral. There are three different building types which correspond to the different building stages. This article focuses on the the first one, which includes the streets, Ciudad de
Jativa, Gandía, Sueca, Onteniente, Carcagente, Burjasot, Godella, Alfafar, Buñol, Paterna y Oliva. The present paper provides a constructive analisys of common building pathologies in phase 1 of Parque Alcosa, related to the potentially expansive features of the land where it is located. This paper also describes the structural sollutions for the projected intervention designed by the architect who subscribes, and was supported by the Public Land Company of Andalusia, under the Singular Building Rehabilitation program
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