723 research outputs found

    Strategic Water Resources in Central Asia: in search of a new international legal order. EUCAM Policy Brief No. 14, May 2010

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    The allocation and use of the water resources of Central Asia is one of the most difficult issues to arise out of the break-up of the Soviet Union. How should the waters of the great Central Asian rivers, the Syr Darya and Amu Darya, be used? To generate much needed hydropower electricity in the mountainous countries in which they arise? Or for irrigation in the energy-rich downstream countries? The aim of this paper is to describe the basic problem and the efforts undertaken both by the Central Asian states and the international community, including the EU, to seek a resolution. It traces recent developments relating to the planned construction of dams, the modification of energy supplies and the periodic issue of increasingly bellicose statements from the capitals of the region. Finally it looks into the challenge for establishing a modern international legal order to govern the region's strategic water resources

    Automatic Recognition of Light Microscope Pollen Images

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    This paper is a progress report on a project aimed at the realization of a low-cost, automatic, trainable system "AutoStage" for recognition and counting of pollen. Previous work on image feature selection and classification has been extended by design and integration of an XY stage to allow slides to be scanned, an auto focus system, and segmentation software. The results of a series of classification tests are reported, and verified by comparison with classification performance by expert palynologists. A number of technical issues are addressed, including pollen slide preparation and slide sampling protocols

    Can bus really be the new tram?

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    Bus Rapid Transit (BRT) appears to be less expensive to build and operate than tram systems but can it really approach the performance level of a tram system and what is the environmental performance of comparable systems? This paper reports systematic research on these issues, particularly relating to where an urban transit system seeks to attract discretionary car users. A model has been developed to compare the implementation, operational costs and environmental impacts of a comparable tram and high quality guided BRT system. This models a UK situation, but draws upon information from elsewhere in Europe and North America. The design of the BRT system delivers equivalent performance to trams in capacity and passenger experience. This ‘equivalence’ model shows that the capital costs of the high-spec BRT system are two-thirds those of tram. This is less of a cost saving than is often claimed, suggesting that, in practice, BRT is built to a lower specification that tram systems. Operational costs do not significantly differ. Using hybrid-engine BRT vehicles, CO2 emissions are similar, BRT has lower PM10 emissions, but NOx from BRT remains higher than for trams. Although the cost differences for equivalent systems are less than is often claimed, there are substantial benefits in the flexible development of BRT, with it less vulnerable to variations from forecast ridership numbers, and development can be split into fundable stages, growing the business case for incremental upgrading. High-spec BRT can to be the new tram, but the ‘value for money’ case for BRT should not be at the expense of quality and transport planning impact

    Adaptability and survival in small- and medium-sized firms

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    This article considers the causal connection between adaptability and survival in populations of small- and medium-sized enterprises. Some literatures have downplayed adaptability by focusing on statics and equilibria (parts of mainstream economics). Others have argued that it is very difficult to make individual firms more adaptable, and the focus should be on selection forces in the population as a whole (early organizational ecology). In contrast, writers on strategy devote much attention to improvements in adaptability. Here we outline an approach to the measure of adaptability that focuses on organizational dispositions and routines, and is usable within large samples of firms. This approach was field tested on 909 firms in 2008 in the East of England. A follow-up survey during the severe recession and shakeout in 2009 provided an opportunity to assess the relationship between adaptability and survival. The results were then replicated and interpreted using a computer simulation. While preliminary, our overall findings suggest that adaptability can have a small but important effect in some circumstances. But our evidence is also consistent with a decline in adaptability in individual firms through time, and the strong overall effect of selection forces. Our interpretative methodology may signpost a route toward the reconciliation of “selectionist” and “adaptationist” views in the literature

    Adaptive Stand Up Paddleboard

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    The task of this project was to create an adaptive paddleboard capable of being ridden by someone who does not have full mobility in one or more of their lower extremities. This project was worked on by a team of five students - three mechanical engineers and two kinesiology students - to create an effective and robust design for the client. To do this, the team regularly met with the client and used individual and group expertise in various fields to bring the best product to the end user. The client, Damien, was a firefighter who was injured in July 2015 after a tree fell on him while he was on duty. The incident left Damien with an incomplete spinal cord injury at level T12 and L1. An incomplete spinal cord injury differs from a complete spinal cord injury in that the spinal cord is not completely severed; instead, due to vertebrae compression or fracture, the axons of a nerve are crushed or destroyed, affecting the ability of motor or sensory information to be transmitted to the brain. However, because of the incomplete nature of the injury, some motor and sensory function is still preserved. The extent of sensory and/or motor preservation is highly varied from person to person because of the difference in the amount of damage on each person’s nerve fibers. Injuries to the L1 vertebrae commonly result in mild loss of function in the hips and legs. As is typical with these types of thoracic injuries, Damien retained full function and strength in his arms and hands. Damien began working on strengthening his legs and reestablishing patterned neural activity in the Central Nervous System (CNS) through intensive therapy at Project Walk in the third quarter of 2015. The therapy is an intensive physical therapy regime; with the goal of being able to walk by the time his therapy is completed. The project was meant to be used by the client for the entirety of his therapy and beyond. For this, the team went through many designs and ideas before all settling on one style, a rear folding, low profile support that could assist the client in a standing position. This design went through a multitude of design changes and iterations as proof of concept tests and analysis was done throughout the year. Consultation with the client, sponsors, advisors, and those interested in the project or working on something similar were paramount helping the team finalize the design. The final chosen design is a modified version of the preliminary selected design. Upon presenting the final preliminary design to Damien, the team received valuable feedback regarding how he planned to use the board, as well as his progress in his ability to move his legs. The largest change Damien wanted to see in the design was the addition of a seating position on the board, which became a focus for the team. Furthermore, Damien expressed how he was very comfortable using dip bars to move his body up and down, as this is a very common movement for wheelchair users. The team took this feedback, in addition to other items, and integrated them into the design in an attempt to create the product so it uniquely fit Damien’s desires. One major breakthrough on the project was that of the insert design used to attach the structure to the board. Through research into methods to attaching structures to prefabricated paddleboards, there was no basis that could be found, as most products of this type were made building custom boards. For this project, and the help of SUP Think Tank and Ding King Surfboard Repair, the team used the “top hat” method, which consists of the following order for each of the four insert locations: two layers of carbon fiber sheets, three layers of 4 oz. fiberglass sheets, the wooden inserts, and then three more layers of 4 oz. fiberglass. Another major recognition was that of automated machining, where using CNC machines became a major help when having tried and failed and hand machining certain aspect of this project. All of this lead to the final design for the adaptive stand up paddleboard project. The final design consists of three positions, kneeling, sitting, and standing. Movement between these positions is possible with the use of the dip bars Damien suggested, and the low profile idea from the initial concept was kept. This low profile concept allows the standing and sitting support to fold down against the paddleboard, also clearing room for a more comfortable kneeling position. The entire project was made marine compatible, with the structure being made of anodized aluminum, nylon straps, and stainless steel bolts and pins. This design was made modular, so it could be removed from the board if necessary, allowing the paddleboard to progress with the client throughout his recovery and more, assisting him in all areas necessary

    A trait-based approach for predicting species responses to environmental change from sparse data : how well might terrestrial mammals track climate change?

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    Acknowledgements LS was supported by two STSMs by the COST Action ES1101 ”Harmonising Global Biodiversity Modelling“ (Harmbio), supported by COST (European Cooperation in Science and Technology). JMB and SMW were funded by CEH projects NEC05264 and NEC05100. JMJT and SCFP are grateful for the support of the Natural Environment Research Council UK (NE/J008001/1). LS, JAH and JMJT conceived the original idea. LS, JAH, JMB, TC & JMJT designed the study; LS collected the data; LS and TC performed the statistical analyses; LS conducted the integrodifference modelling assisted by JMB and SMW. LS conducted the individual-based modelling assisted by SCFP. LS led the writing supported by JMJT, JMB, SCFP, SMW, TC, JAH and GB.Peer reviewedPublisher PD
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