32 research outputs found
Development of Sol-Gel ferroelectric thin films for photonic applications
No full textIn this thesis, the author has prepared and characterized sol-gel processed ferroelectric thin films, including barium titante, and lithium niobate/tantalate.Doctor of Philosophy (EEE
A novel algorithm for remote image progressive coding based on ROI
No full textProgressive coding technology based on ROI can effectively improve network transmission efficiency of remote image and meet application demand for users to concern important region with a priority. This article firstly analyzes traditional ROI coding method based on bit plane shift, points out existent deficiency of such methods; then put forward a novel ROI progressive coding algorithm. Basic principle of this algorithm is that, on the basis of regular wavelet subband, separate high frequency subbands into high frequency ROI subband and high frequency BG subband and rearrange transformed wavelet subbands, then realize progressive coding from low frequency subband, high frequency ROI subband to high frequency BG subband; at last, effectiveness and superiority of this algorithm are verified by experimental analysis. ? 2009 IEEE.EI
The Measurement of Capital Stock of China
No full textCapital stock is an important indicator in economics, it is an important indicator to measure the social and economic development status. But the research of capital stock is not wildly contributed. This paper is to measure capital stock and forecast future capital stock with time series models. The author conducts empirical methods based on the measurement methods of previous scholars. The paper concludes that the capital stock is growing stably, and with established new mathematical models and time series models, and combined with the latest data, measures the capital stock of China
Assessing the effectiveness and cost effectiveness of adaptive e-Learning to improve dietary behaviour: protocol for a systematic review
No full textBackground: The composition of habitual diets is associated with adverse or protective effects on aspects of health. Consequently, UK public health policy strongly advocates dietary change for the improvement of population health and emphasises the importance of individual empowerment to improve health. A new and evolving area in the promotion of dietary behavioural change is e-Learning, the use of interactive electronic media to facilitate teaching and learning on a range of issues, including diet and health. The aims of this systematic review are to determine the effectiveness and cost-effectiveness of adaptive e-Learning for improving dietary behaviours.
Methods/Design: The research will consist of a systematic review and a cost-effectiveness analysis. Studies will be considered for the review if they are randomised controlled trials, involving participants aged 13 or over, which evaluate the effectiveness or efficacy of interactive software programmes for improving dietary behaviour. Primary outcome measures will be those related to dietary behaviours, including estimated intakes of energy, nutrients and dietary fibre, or the estimated number of servings per day of foods or food groups. Secondary outcome measures will be objective clinical measures that are likely to respond to changes in dietary behaviours, such as anthropometry or blood biochemistry. Knowledge, self-efficacy, intention and emotion will be examined as mediators of dietary behaviour change in order to explore potential mechanisms of action. Databases will be searched using a comprehensive four-part search strategy, and the results exported to a bibliographic database. Two review authors will independently screen results to identify potentially eligible studies, and will independently extract data from included studies, with any discrepancies at each stage settled by a third author. Standardised forms and criteria will be used. A descriptive analysis of included studies will describe study design, participants, the intervention, and outcomes. Statistical analyses appropriate to the data extracted, and an economic evaluation using a cost-utility analysis, will be undertaken if sufficient data exist, and effective components of successful interventions will be investigated.
Discussion: This review aims to provide comprehensive evidence of the effectiveness and cost-effectiveness of adaptive e-Learning interventions for dietary behaviour change, and explore potential psychological mechanisms of action and the effective components of effective interventions. This can inform policy makers and healthcare commissioners in deciding whether e-Learning should be part of a comprehensive response to the improvement of dietary behaviour for health, and if so which components should be present for interventions to be effective
The effects of energy drinks on the structure and function of epithelial cells and fibroblasts.
No full textEnergy drinks and their ingredients were studied at the cellular level. This project continued previous research that was conducted at Saint Mary’s College of California during the summer of 2010. 8 Cellular effects of energy drinks were assessed on two cell types: Madin-Darby Canine Kidney (MDCK) cells and rat embryonic fibroblasts. To examine effects of energy drinks on cellular structure and function, cells were treated with Monster Energy and 5-hour Energy. It was discovered that both types of energy drinks negatively impacted cell structure and function in epithelial cells and fibroblasts
Applications of the IAPWS-95 formulation in fluid inclusion and mineral-fluid phase equilibria
No full textAbstractThe IAPWS-95 formulation explicit in Helmholtz free energy proposed by Wagner and Pruβ (2002) is the best equation of state of water, from which all thermodynamic properties can be obtained over a wide T–p range from 273.16 to 1273 K and from 0 to 1000 MPa with experimental accuracy. This paper reports the applications of the IAPWS-95 formulation in fluid inclusion and mineral-water phase equilibria. A reliable and highly efficient calculation method is presented for the saturated properties of water so that the formulation can be conveniently applied in the study of fluid inclusion, such as calculating homogenization pressures, homogenization densities (or molar volumes), volume fractions and isochores. Meanwhile, the univariant curves of some mineral-dehydration reactions are calculated based on the IAPWS-95 formulation. The computer code of the IAPWS-95 formulation can be obtained from the corresponding author
Design and research on GeoIP
No full textBased on the coding of The EMD (The extended model based on mapping division) subdivision mesh, we designed an network address coding of subdivision mesh (GeoIP). In this paper, the method that the coding of The EMD subdivision mesh combines with IPv6 is proposed. Through the method we can organize Spatial Data by the storage architecture model that every server stands for a geographic area. The main idea is following: first, extend the length of EMD subdivision mesh code to 68 bits; then insert the GeoIP into IPv6 address, after that the IPv6 network is divided by VLSM(Variable Length Subnet Mask) in accordance with the Division strategy of the EMD subdivision mesh. By this way, every Subnet or every network node can stand for some subdivision mesh, we can realize the goal that organize the global Spatial Data by geographic position, so that the global Spatial Data can be managed in order and in a highly-efficient way. ? 2010 IEEE.EI
Research and Implementation on the Anytime-Anywhere-Service System
No full textWith the rapid development of remote sensing technologies, the amount of the remote sensing image data is increasing dramatically. However, the remote sensing image data's usage rate still remains very low. To solve this problem, we propose a new Service model: Anytime-Anywhere Service (AA-Service) model, under which users can get remote sensing images anytime and anywhere. Then we implemented and tested our AA-Service System based on this Service model. First of all, we introduced the framework of the AA-Service System. The AA-Service System includes three units: Data Center, Communication Unit, and User Unit; and provides three kinds of Services: image Service, plotting Service, and update Service. The features of the AA-Service are seamless coverage, all online Service, and efficient distribution. Secondly, we also described the three key technologies of the AA-Service System in this paper: distributing data according to the users' needs, updating remote sensing image partially and transmitting data in an efficient way. In the AA-Service System, the remote sensing image is organized by the global subdivision compression pyramid which enables the System to distribute remote sensing images of different resolution to users according to the users' requests. When the remote sensing image is changing, the System only updates the changed area rather than the whole image. This is different from other image Service models which distribute remote sensing images by scene or map sheet. In addition, this System ensures reliable and efficient data transmission by integrating three communication methods: BeiDou communication, CDMA communication and Internet communication, and using a new packet loss retransmission mechanism. Thirdly, we listed the statistics data of the System test. In the System test, we measured the Qos and consumed time of image Service, plotting Service and update Service respectively. The results show that this AA-Service System can provide the remote sensing images Service anytime and anywhere in a short time and in a good Qos. By using this AA-Service System, the remote sensing image data's usage rate will be increased and users can experience more convenient remote sensing images Service in their daily life.Computer Science, Information SystemsEngineering, Electrical & ElectronicEICPCI-S(ISTP)
Optimal integration of a hybrid solar-battery power source into smart home nanogrid with plug-in electric vehicle
No full textHybrid solar-battery power source is essential in the nexus of plug-in electric vehicle (PEV), renewables, and smart building. This paper devises an optimization framework for efficient energy management and components sizing of a single smart home with home battery, PEV, and potovoltatic (PV) arrays. We seek to maximize the home economy, while satisfying home power demand and PEV driving. Based on the structure and system models of the smart home nanogrid, a convex programming (CP) problem is formulated to rapidly and efficiently optimize both the control decision and parameters of the home battery energy storage system (BESS). Considering different time horizons of optimization, home BESS prices, types and control modes of PEVs, the parameters of home BESS and electric cost are systematically investigated. Based on the developed CP control law in home to vehicle (H2V) mode and vehicle to home (V2H) mode, the home with BESS does not buy electric energy from the grid during the electric price's peak periods
