Integrated Resource Planning for a Chinese Urban Development

Urban areas manage vast quantities of energy, water and waste resources. In order to minimise the cost and environmental impact, optimisation modelling is often used in the design and operation of these systems. However, traditional modelling approaches only consider the energy, water and waste sectors in isolation. This approach neglects the synergies possible between these systems whereby outputs from one system form an input to another, and hence sets an upper bound on economic and environmental impact minimisation. We formulate a mixed integer linear programming (MILP) model which takes a ‘systems-of-infrastructure systems’ approach to show how resource consumption can be reduced. The model takes as inputs possible resource conversion and transportation infrastructure and resources, and resource demands, and returns the optimal infrastructure choice and layout. The model is called PRaQ because it models ‘processes, resources and qualities.’ We apply the model to the design of a new urban development in China for three scenarios of various levels of resource integration. Results are still to be obtained

Introduction: Waterloo and is afterlife in the nineteenth-century periodical and newspaper press

This article contextualises the battle of Waterloo and its impact on cultural life through the pages of the printed press. It looks at specific case studies and selects a number of issues to demonstrate how this event was possible the most defining battle of the nineteenth century

Re-use of an ontology for modelling urban energy systems

The use of ontologies for the interoperability of software models is widespread, with many applications also in the energy domain. By formulating a shared data structure and a definition of concepts and their properties, a language is created that can be used between modellers and - formalised in an ontology - between model components. When modelling energy systems, connections between different infrastructures are critical, e.g. the interaction between the gas and electricity markets or the need for various infrastructures including power, heat, water and transport in cities. While a commonly shared ontology of energy systems would be highly desirable, the fact is that different existing models or applications already use dedicated ontologies, and have been demonstrated to work well using them. To benefit from linking data sources and connecting models developed with different ontologies, a translation between concepts can be made. In this paper a model of an urban energy system built upon one ontology is initialised using energy transformation technologies defined in another ontology, thus illustrating how this common perspective might benefit researchers in the energy domain. ©2010 IEEE

Assessment of Design Procedures for Vertical Borehole Heat Exchangers

The use of ground source energy systems is a well-established method to provide low cost heating to buildings, diversify the energy mix and help meeting increasingly stricter sustainability targets. However, considerable uncertainties remain over their efficient design, with several standards, guidelines and manuals being proposed over the last few years. This paper aims at providing insight into the implications to the design of a vertical borehole heat exchanger of the adoption of different design procedures. The hypothetical case of a typical dwelling located in London, UK, is analysed in order to highlight the impact on the final design of the chosen methodology. Moreover, a parametric study using an analytical design procedure was performed to point out the influence of various factors, such as borehole characteristics and thermal properties of the ground. It is shown that there are considerable discrepancies between design methods and that uncertainties in some input parameters, such as the thermal properties of the ground, which for relatively small systems are often selected from tables rather than measured in situ, may have a substantial influence on the length of borehole required

Why regenerative stem cell medicine progresses slower than expected

Stem cell research has been acclaimed to revolutionize the future of medicine, and to offer new treatments for previously incurable diseases. Despite years of research, however, the therapeutic potential of stem cell research has not yet been fully realized. By June 2014, the US Food and Drug Administration had approved only five stem cell-based medicinal products, all of which cord blood derived hematopoietic stem cell products for the cure of blood and immunological diseases. Anticipated treatments for cancer, neurodegenerative disorders, gastroenterological, myocardial, and other diseases are still far from routine applications. What are the reasons for the slow progress in the stem cell field, and the mismatch between public expectations and actual achievements

Alien Registration- Keirstead, Randolph (Caribou, Aroostook County)

https://digitalmaine.com/alien_docs/25945/thumbnail.jp

Alien Registration- Keirstead, Anna M. (Mapleton, Aroostook County)

https://digitalmaine.com/alien_docs/34008/thumbnail.jp

Alien Registration- Keirstead, Wellington C. (Mapleton, Aroostook County)

https://digitalmaine.com/alien_docs/34009/thumbnail.jp