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Technological Solutions (technological + solution)
Selected AbstractsMultiscale approach to geo-composite cellular structures subjected to rock impactsINTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS, Issue 13 2007François Nicot Abstract Geo-composite cellular structures are an efficient technological solution for various applications in civil engineering. This type of structure is particularly well adapted to resisting rockfalls and can act as a defensive structure. However, the design of such structures is for the most part empirically based; this lack of research-based design stagnates optimization and advanced development. In this paper, the mechanical behaviour of a geo-composite cellular structure is investigated using a multi-scale approach, from the individual cell made up of an assembly of rocky particles contained in a wire netting cage to the entire structure composed of a regular array of cells. Based on discrete modelling of both the cell and structure scales, a computational tool has been developed for design purposes. Copyright © 2007 John Wiley & Sons, Ltd. [source] A preliminary comparative analysis of 3D body scanner, manually taken girth body measurements and size chart measurementsINTERNATIONAL JOURNAL OF CONSUMER STUDIES, Issue 3 2010Pinkie E. Zwane Abstract In an attempt to provide a technological solution to the influx of cheap imports in South Africa and bridging the technology divide between Africa and the rest of the world, the Council for Scientific and Industrial Research procured a three-dimensional body scanner from the Textile and Clothing Technology Corporation, in the US. The pilot study was aimed at introducing the technology to the South African consumers, and to compare the scanned data with the manually taken measurements. A convenience sample of 56 females in South Africa was interviewed using a structured questionnaire. Interviews were used to capture views on acceptance of the technology, prior to being scanned. Scanning garments made from a stretchy fabric were designed and sewn in four sizes of small, medium, large and extra large. A covariance, one sample t -test and paired t - tests were used for data analyses. Almost all respondents felt comfortable with the designed scanning garments and the scanning process. The scanner measurements were generally more numerical in value than the manual measurements for a body part as expected, although the disparity was on the higher side than expected. The discernible difference between means of scanned data and standard values in the currently used sizing charts highlighted the long overdue need to update the sizing charts using a national anthropometric database generated locally. [source] Modernizing times: UK hearing-impaired consumers at the policy crossroadsINTERNATIONAL JOURNAL OF CONSUMER STUDIES, Issue 2 2008Liz Ross Abstract Although there is now a long-standing belief in the UK that free consumer choice improves market efficiency, the supply of some consumer products and services remained controlled by the state. In the interests of consumers, it regards as vulnerable to misdirection and malpractice or unlikely to have the technical expertise to make informed decisions. Historically, the supply of hearings aids has been restricted to the National Health Service and specific licensed practitioners in the independent sector. Recent changes to both product and service provision have brought about a radical alteration to this situation, and to the framework of control. This case study of a changing healthcare system demonstrates more generally the difficulties experienced by people trying to improve or maintain auditory functions for speech communication. Access to appropriate technological solutions may be precluded by cost, distribution arrangements or lack of knowledge. Overarching these difficulties, regional health policy variations within the UK mean that consumer experiences vary according to where they live. Consumer influence over the direction and scope of changes to the hearing aid market is limited despite the rhetoric of choice. This article examines the emerging ,liberalized' market and its contradictions. [source] A Conceptual Model for Nursing InformationINTERNATIONAL JOURNAL OF NURSING TERMINOLOGIES AND CLASSIFICATION, Issue 2 2008Rodney Hughes MSc PURPOSE.,This Conceptual Model for Nursing Information describes the core activities of nursing, the collection of information about these activities, and argues that these activities must be described using standardized nursing languages. DATA SOURCES.,Relevant literature, both national and international, was reviewed and summarized. DATA SYNTHESIS.,A maximum data set for nursing was developed. CONCLUSIONS.,In the United Kingdom, a new and radical approach to the process of nursing is required; one that demonstrates that nursing is the decision-making that takes place in all core activities of nursing. IMPLICATIONS FOR NURSING PRACTICE.,Unless nurses have a clear view of what the profession requires from technological solutions for the recording of nursing activities, less than optimal solutions will be forced upon the profession. [source] From data to knowledge and back again: understanding the limitations of KMSKNOWLEDGE AND PROCESS MANAGEMENT: THE JOURNAL OF CORPORATE TRANSFORMATION, Issue 3 2003Tom ButlerArticle first published online: 21 JUL 200 Researchers in the field of information systems (IS) view IT-enabled knowledge management solutions as novel approaches to the stimulation of creativity and innovation in post-industrial organizations; hence, the focus by researchers on the role of information and communication technologies (ICT) in enabling and supporting knowledge work. However, despite some success stories, recent research indicates that the majority of knowledge management systems (KMS) have been unsuccessful. This situation has led some to voice deep-seated concerns about the knowledge management paradigm and its influence on the IS field,particularly the belief that IT can help capture, store and transfer knowledge. This paper's objective is to deepen the IS field's understanding of the limitations and capabilities of knowledge management systems. A case study of an Irish software vendor's experiences in developing KMS using case-based reasoning technologies is undertaken to help achieve this objective. The findings of this study illustrate that: (a) the KMS developed in the organization studied did not meet the claims of their creators, as the applications provided a poor approximation of the ,horizons of understanding' of domain experts whose knowledge these systems purported to capture, store and transfer; (b) the ontological and epistemological perspectives of developers were overtly functionalist in orientation and were insensitive to the socially constructed and institutional nature and context of knowledge. The findings lend weight to the claim that information technology deals with data only, and knowledge management requires social as opposed to technical support, in that appropriate institutional mechanisms, rather that technological solutions, constitute the corporate memory. Copyright © 2003 John Wiley & Sons, Ltd. [source] Policy options for responding to the growing challenge from obesity (PorGrow) in PolandOBESITY REVIEWS, Issue 2007L. Szponar Summary To explore the perspectives of stakeholders towards a range of policy options to respond to obesity in Poland, a multi-criteria mapping method was used. During structured interviews, stakeholders were invited to appraise policy options by reference to criteria of their own choosing. They also provided relative weightings to their criteria, generating overall rankings of the policy options in relation to each other. Efficacy, feasibility and societal benefits were the groups of criteria deemed most important. There was most consensus in favour of options related to health education, particularly in schools, compared with options that aimed at modifying the environment to prevent obesity, i.e. options around physical activity, modifying the supply and demand for food products, and information-related options. There was little support for technological solutions or institutional reforms. There was broad consensus that to reverse the rising trend in the incidence of obesity, it will be necessary to implement a portfolio of measures, but options related to behaviour change through education are most highly regarded. It will also be necessary to invest in improved surveillance and monitoring of Polish dietary practices, levels of physical activity and obesity in terms of data on height, weight and body mass indexes. [source] Balancing the Need to Develop Coastal Areas with the Desire for an Ecologically Functioning Coastal Environment: Is Net Ecosystem Improvement Possible?RESTORATION ECOLOGY, Issue 1 2005R.M. Thom Abstract The global human population is growing exponentially, close to a majority lives and works near the coast, and coastal commerce and development are critical to the economies of many nations. Hence, coastal areas will continue to be a major focus of development and economic activity. People desire the economic advantages provided by coastal development along with the fisheries and social commodities supported by estuarine and coastal ecosystems. Because of these facts, we view the challenge of balancing coastal development with enhancing nearshore marine and estuarine ecosystems (i.e., net ecosystem improvement) as the top priority for coastal researchers in this century. Our restoration research in Pacific Northwest estuaries and participation in nearshore project design and impact mitigation has largely dealt with these competing goals. To this end, we have applied conceptual models, comprehensive assessment methods, and principles of restoration ecology, conservation biology, and adaptive management to incorporate science into decisions about uses of estuarine systems. Case studies of Bainbridge Island and the Columbia River demonstrate the use of objective, defensible methods to prioritize tidally influenced shorelines and habitats (i.e., riparian forests, marshes, unvegetated flats, rocky shores, seagrass meadows, kelp forests) for preservation, conservation, and restoration. Case studies of Clinton, Washington, and Port Townsend, Washington, demonstrate the incorporation of an ecological perspective and technological solutions into design of overwater structures to minimize impacts on nearshore ecosystems. Adaptive management has allowed coastal development and restoration uncertainties to be better evaluated, with the information used to improve management decisions. Although unproven on a large scale, we think these kinds of methods can contribute to the net improvement of already degraded ecosystems. The ingredients include applied science to understand the issues, education, incentives, empirical data, cumulative impact analysis, and an effective adaptive management program. Because the option of net ecosystem improvement is often more costly than alternatives such as no net loss, commitment by the local or regional community to this approach is essential. [source] Assessment of the impact of salinity and irradiance on the combined carbon dioxide sequestration and carotenoids production by Dunaliella salina: A mathematical modelBIOTECHNOLOGY & BIOENGINEERING, Issue 2 2009O.Q.F. Araújo Abstract Current anthropogenic activities have been causing a significant increase in the atmospheric concentration of CO2 over the past 60 years. To mitigate the consequent global warming problem, efficient technological solutions, based on economical and technical grounds, are required. In this work, microalgae are studied as important biological systems of CO2 fixation into organic compounds through photosynthesis. These microorganisms are potential sources of a wide variety of interesting chemical compounds, which can be used for commercial purposes, reducing the cost of CO2 capture and sequestration. Specifically, Dunaliella salina culture was studied aiming at the impact evaluation of operational conditions over cellular growth and carotenoid production associated with the CO2 sequestration on focus. The main experimental parameters investigated were salinity and irradiance conditions. The experimental results supported the development of a descriptive mathematical model of the process. Based on the proposed model, a sensitivity analysis was carried out to investigate the operational conditions that maximize CO2 consumption and carotenoid production, in order to guide further development of technological routes for CO2 capture through microalgae. A preliminary cost estimation of CO2 sequestration combined to carotenoids production for a 200 MW power plant is presented, based on the growth rates achieved in this study. Biotechnol. Bioeng. 2009;102: 425,435. © 2008 Wiley Periodicals, Inc. [source] Environmental awakening in the Swedish pulp and paper industry: pollution resistance and firm responses in the Early 20th century,BUSINESS STRATEGY AND THE ENVIRONMENT, Issue 1 2009Kristina Söderholm Abstract The purpose of this article is to analyse in what way a conflict in the early 20th century (1904,1911) over a Swedish pulp mill's emissions into air and water impacted on the technology choices and strategies of the mill. The article also analyses what characterized the company's other responses to the complaints, in the form of counter-arguments, as well as engagement of experts. The access to information about the deliberations at the mill's board meetings is very rare in historical studies of company behaviour in relation to the environment, and provides us with a unique opportunity to comprehend in what way business strategies were developed during the course of the conflict. Technology choices are often characterized by the search for knowledge that enables a company to employ existing but not yet developed technical potentials, rather than choices between known technical solutions. We emphasize that this is particularly evident in a case where a company is forced to alter its technology in order to solve previously unknown environmental problems. In spite of a persistent search, the mill did not find any ready-made technological solutions to the environmental problems faced and was therefore forced to engage scientific expertise and even initiate basic scientific research. In 1911, the Swedish Supreme Administrative Court ordered the mill to undertake a number of pollution abatement investments. Interestingly , and partly in line with the so-called Porter hypothesis , the long-run economics of these investments turned out to be more favourable than anticipated prior to the verdict. Copyright © 2006 John Wiley & Sons, Ltd and ERP Environment. [source] Understanding the potential role of mobile phone-based monitoring on asthma self-management: qualitative studyCLINICAL & EXPERIMENTAL ALLERGY, Issue 5 2007H. Pinnock Summary Background National and international healthcare policy increasingly seeks technological solutions to the challenge of providing care for people with long-term conditions. Novel technologies, however, have the potential to change the dynamics of disease monitoring and self-management. We aimed to explore the opinions and concerns of people with asthma and primary care clinicians on the potential role of mobile phone monitoring technology (transmitting symptoms and peak flows, with immediate feedback of control and reminder of appropriate actions) in supporting asthma self-management. Methods This qualitative study recruited 48 participants (34 adults and teenagers with asthma, 14 asthma nurses and doctors) from primary care in Lothian (Central Scotland) and Kent (South East England). Thirty-nine participated in six focus groups, which included a demonstration of the technology; nine gave in-depth interviews before and after a 4-week trial of the technology. Results Participants considered that mobile phone-based monitoring systems can facilitate guided self-management although, paradoxically, may engender dependence on professional/technological support. In the early phases, as patients are learning to accept, understand and control their asthma, this support was seen as providing much-needed confidence. During the maintenance phase, when self-management predominates, patient and professionals were concerned that increased dependence may be unhelpful, although they appreciated that maintaining an on-going record could facilitate consultations. Conclusion Mobile phone-based monitoring systems have the potential to support guided self-management by aiding transition from clinician-supported early phases to effective self-management during the maintenance phase. Continuing development, adoption and formal evaluation of these systems should take account of the insights provided by our data. [source] Precision of transfer of preoperative planning for oral implants based on cone-beam CT-scan images through a robotic drilling machineCLINICAL ORAL IMPLANTS RESEARCH, Issue 6 2002An in vitro study Abstract: In this study, an image-guided system for oral implant placement was assessed. A specially designed mechanical tool has been elaborated to transfer the preoperative implant axis planned on 3-dimensional imagery into a surgical template by a numerically controlled drilling machine. The main drawback of image-guiding systems is the use of preoperative computed tomography, which is expensive and delivers high radiation doses. Therefore, in this study the image-guiding system was coupled with a cone-beam tomograph that significantly decreased both cost and radiation doses. Three edentulous models were used. To determine the accuracy of the system, the ability of a 1.8-mm diameter drill to enter a 2.0-mm diameter, 10-mm-long titanium tube inserted on the model with no contact was verified. Because the drill entered the tubes with no contact and went beyond the end of the tube, the transfer error was less than 0.2 mm for translation and less than 1.1° for rotation. The method presented here is low cost and high precision compared to other technological solutions such as tracking. Further assessment in the surgical field should lead to daily use of this system for flapless surgery, to prepare a prosthesis prior to surgery for immediate loading, to reduce risk of injuring critical anatomical structures and to eliminate manual placement error. [source] | ||||||||||||||||