495 resultados para Visual cue integration


Relevância:

20.00% 20.00%

Publicador:

Resumo:

Background: Pharmacists are considered medication experts but are underutilised mainly at the periphery of the primary healthcare team. General medical practitioners (GPs) in Malaysian private healthcare clinics are granted rights to prescribe and dispense medications, thus furhter limiting pharmacists involvement in ensuring safe use of medicines. The integration of pharmacist into private primary healthcare clinics has the potential to reduce medication-relation problems. Objective: To explore the views of consumers on the integration of pharmacists within private primary healthcare clinics in Malaysia. Method: A purposive sample of healthcare consumers in Selangor and Kuala Lumpur, Malaysia were invited to participate in focus groups and semi-structured interviews. Sessions were audio recorded and transcribed verbatim and thematically analysed using NVivo 10. Results: A total of 24 healthcare consumers particpated in two focus groups and six semi-structured interviews. Four major themes were identified: (1) Pharmacists role viewed mainly as supplying medications, (2) Readiness to accept pharmacists in private healthcare clinics, (3) Willingness to pay for pharmacy services, and (4) Concerns about GPs resistance to pharmacist integration. Consumers felt that a pharmacist integrated into private prumary healthcare clinics could offer potential benefits such as counter-checking prescriptions to ensure correct medication is supplied and counselling consumers on their medications and the potential side effects. The potential to increase in costs to consumers and GPs reluctance were perceived as barriers to integration. Conclusion: This study provides insights into consumers perspectives on the roles of pharmacists within private primary healthcare clinics in Malaysia. Consumers generally supported pharmacist integration into private primary healthcare clinics. However, for pharmacists to expand their capacity in providing integrated and collaborative primary care services to consumers, barriers to pharmacist integration need to be addressed.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

This paper provides a preliminary analysis of an autonomous uncooperative collision avoidance strategy for unmanned aircraft using image-based visual control. Assuming target detection, the approach consists of three parts. First, a novel decision strategy is used to determine appropriate reference image features to track for safe avoidance. This is achieved by considering the current rules of the air (regulations), the properties of spiral motion and the expected visual tracking errors. Second, a spherical visual predictive control (VPC) scheme is used to guide the aircraft along a safe spiral-like trajectory about the object. Lastly, a stopping decision based on thresholding a cost function is used to determine when to stop the avoidance behaviour. The approach does not require estimation of range or time to collision, and instead relies on tuning two mutually exclusive decision thresholds to ensure satisfactory performance.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

This paper presents a 100 Hz monocular position based visual servoing system to control a quadrotor flying in close proximity to vertical structures approximating a narrow, locally linear shape. Assuming the object boundaries are represented by parallel vertical lines in the image, detection and tracking is achieved using Plücker line representation and a line tracker. The visual information is fused with IMU data in an EKF framework to provide fast and accurate state estimation. A nested control design provides position and velocity control with respect to the object. Our approach is aimed at high performance on-board control for applications allowing only small error margins and without a motion capture system, as required for real world infrastructure inspection. Simulated and ground-truthed experimental results are presented.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

The value of information technology (IT) is often realized when continuously being used after users’ initial acceptance. However, previous research on continuing IT usage is limited for dismissing the importance of mental goals in directing users’ behaviors and for inadequately accommodating the group context of users. This in-progress paper offers a synthesis of several literature to conceptualize continuing IT usage as multilevel constructs and to view IT usage behavior as directed and energized by a set of mental goals. Drawing from the self-regulation theory in the social psychology, this paper proposes a process model, positioning continuing IT usage as multiple-goal pursuit. An agent-based modeling approach is suggested to further explore causal and analytical implications of the proposed process model.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

We have developed a Hierarchical Look-Ahead Trajectory Model (HiLAM) that incorporates the firing pattern of medial entorhinal grid cells in a planning circuit that includes interactions with hippocampus and prefrontal cortex. We show the model’s flexibility in representing large real world environments using odometry information obtained from challenging video sequences. We acquire the visual data from a camera mounted on a small tele-operated vehicle. The camera has a panoramic field of view with its focal point approximately 5 cm above the ground level, similar to what would be expected from a rat’s point of view. Using established algorithms for calculating perceptual speed from the apparent rate of visual change over time, we generate raw dead reckoning information which loses spatial fidelity over time due to error accumulation. We rectify the loss of fidelity by exploiting the loop-closure detection ability of a biologically inspired, robot navigation model termed RatSLAM. The rectified motion information serves as a velocity input to the HiLAM to encode the environment in the form of grid cell and place cell maps. Finally, we show goal directed path planning results of HiLAM in two different environments, an indoor square maze used in rodent experiments and an outdoor arena more than two orders of magnitude larger than the indoor maze. Together these results bridge for the first time the gap between higher fidelity bio-inspired navigation models (HiLAM) and more abstracted but highly functional bio-inspired robotic mapping systems (RatSLAM), and move from simulated environments into real-world studies in rodent-sized arenas and beyond.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

In this chapter Knight & Dooley discuss arts learning and issues of educational authenticity via children’s engagement with iPads (O’Mara & Laidlaw 2011; Shifflet, Toledo & Mattoon 2012). The chapter begins by considering common perceptions about art and how these popular beliefs and conditions affect and influence how children’s art is defined and valorized. The art produced by children using iPads is then discussed through key observations and reflections, and the chapter concludes with some recommendations when selecting apps for making art.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

In design studio, sketching or visual thinking is part of processes that assist students to achieve final design solutions. At QUT’s First and Third Year industrial design studio classes we engage in a variety of teaching pedagogies from which we identify ‘Concept Bombs’ as an instrumental in the development of students’ visual thinking and reflective design process, and also as a vehicle to foster positive student engagement. Our ‘formula’: Concept Bombs are 20 minute design tasks focusing on rapid development of initial concept designs and free-hand sketching. Our experience and surveys tell us that students value intensive studio activities especially when combined with timely assessment and feedback. While conventional longer-duration design projects are essential for allowing students to engage with the full depth and complexity of the design process, short and intensive design activities introduce variety to the learning experience and enhance student engagement. This paper presents a comparative analysis of First and Third Year students’ Concept Bomb sketches to describe the types of design knowledge embedded in them, a discussion of limitations and opportunities of this pedagogical technique, as well as considerations for future development of studio based tasks of this kind as design pedagogies in the midst of current university education trends.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Supercapacitors are increasingly used as short term energy storage elements in distributed generation systems. The traditional approach in integrating them to the main system is the use of interfacing dc-dc converters which introduce additional costs and power losses. This paper therefore, presents a novel direct integration scheme for supercapacitors and thereby eliminates associated costs and power losses of interfacing converters. The idea is simply to replace ordinary capacitors of three-level flying-capacitor rectifiers with supercapacitors and operate them under variable voltage conditions. An analysis on the reduction of power losses by the proposed system is presented. Furthermore, supercapacitor sizing and implementation issues such as effects of the variable voltage operation and resistive behavior of supercapacitors at high frequencies are also discussed. Simulation results are presented to verify the efficacy of the proposed system in suppressing short term power fluctuations in wind generation system.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Battery/supercapacitor hybrid energy storage systems have been gaining popularity in electric vehicles due to their excellent power and energy performances. Conventional designs of such systems require interfacing dc-dc converters. These additional dc-dc converters increase power loss, complexity, weight and cost. Therefore, this paper proposes a new direct integration scheme for battery/supercapacitor hybrid energy storage systems using a double ended inverter system. This unique approach eliminates the need for interfacing converters and thus it is free from aforementioned drawbacks. Furthermore, the proposed system offers seven operating modes to improve the effective use of available energy in a typical drive cycle of a hybrid electric vehicle. Simulation results are presented to verify the efficacy of the proposed system and control techniques.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Battery-supercapacitor hybrid energy storage systems are becoming popular in the renewable energy sector due to their improved power and energy performances. These hybrid systems require separate dc-dc converters, or at least one dc-dc converter for the supercapacitor bank, to connect them to the dc-link of the grid interfacing inverter. These additional dc-dc converters increase power losses, complexity and cost. Therefore, possibility of their direct connection is investigated in this paper. The inverter system used in this study is formed by cascading two 3-level inverters, named as the “main inverter” and the “auxiliary inverter”, through a coupling transformer. In the test system the main inverter is connected with the rectified output of a wind generator while the auxiliary inverter is directly attached to a battery and a supercapacitor bank. The major issues with this approach are the dynamic changes in dc-link voltages and inevitable imbalances in the auxiliary inverter voltages, which results in unevenly distributed space vectors. A modified SVM technique is proposed to solve this issue. A PWM based time sharing method is proposed for power sharing between the battery and the supercapacitor. Simulation results are presented to verify the efficacy of the proposed modulation and control techniques.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

This paper presents a grid-side inverter based supercapacitor direct integration scheme for wind power systems. The inverter used in this study consists of a conventional two-level inverter and three H-bridge modules. Three supercapacitor banks are directly connected to the dc-links of H-bridge modules. This approach eliminates the need for interfacing dc-dc converters and thus considerably improves the overall efficiency. However, for the maximum utilization of super capacitors their voltages should be allowed to vary. As a result of this variable voltage space vectors of the hybrid inverter get distributed unevenly. To handle this issue, a modified PWM method and a space vector modulation method are proposed and they can generate undistorted current even in the presence of unevenly distributed space vectors. A supercapacitor voltage balancing method is also presented in this paper. Simulation results are presented to validate the efficacy of the proposed scheme, modulation methods and control techniques.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

In project management today, sustainability considerations are becoming increasingly necessary as an inclusion into project discovery, design and delivery phase methodologies. However, sustainability cannot always be tacked on to traditional project management approaches and still achieve the best project outcomes. Throw in the particular considerations for a culturally specific project, as for Aboriginal and Torres Strait Islander people, and the traditional project management approach is at risk of not meeting the needs of stakeholders or their engagement. In this presentation, we will briefly demonstrate how from beginning with sustainability considerations and integrating both project management principles and Aboriginal and Torres Strait Islander va lu es that QUT's Oodgeroo Unit is actioning a 'means to ends' integration approach for stakeholder engagement in two national Aboriginal and Torres Strait Islander projects. The iterative discovery and design of the federally Higher Education Participation and Partnerships Program (HEPPP) funded Aboriginal and Torres Strait Islander Higher Education Social Marketing Strategy (Strategy) and the Aboriginal and Torres Strait Islander Higher Education Portal (Portal) projects is being informed through a 'means' to 'ends' user- and design -led project management approach for inclusivity, visioning, and participation informing these projects for susta inable national deliverables. This approach draws upon the integration of Sustain ability Development Pillars and Project Management Pillars with the contextual lens of our proposed Aboriginal and Torres Strait Islander Pillars as the underpinning methodology of the Strategy and Portal Project's Communication and Collaboration Plan and approach with stakeholders. These th ree Pillars are integrated further through participatory consideration and inclu sion of comparative models: Daly's Sustainability Triangle, Walker's Object Design, Maslow's Hierarchy of Human Needs, Olsen's Four Layers of Communication,Project Management In stitute's (PMI's) Integrated Framework for Organisational Project Management, with the Aborig inal and Torres Strait Islander six core research ethics values. This presentation invites participants to join us in envisioning the 'ultimate means' of Environment, Del ivery and Sovereignty, through Economy, Design and Self-determination to the 'ultimate ends' of Social, Discove ry and Cultural Safety principles through stakeholder engagement.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

This paper presents a new direct integration scheme for supercapacitors that are used to mitigate short term power fluctuations in wind power systems. The proposed scheme uses the popular dual inverter topology for grid connection as well as interfacing a supercapacitor bank. The dual inverter system is formed by cascading two 2-level inverters named as the “main inverter” and the “auxiliary inverter”. The main inverter is powered by the rectified output of a wind turbine coupled permanent magnet synchronous generator. The auxiliary inverter is directly connected to a super capacitor bank. This approach eliminates the need for an interfacing dc-dc converter for the supercapacitor bank and thus improves the overall efficiency. A detailed analysis on the effects of non-integer dynamically changing voltage ratio is presented. The concept of integrated boost rectifier is used to carry out the Maximum Power Point Tracking (MPPT) of the wind turbine generator. Another novel feature of this paper is the power reference adjuster which effectively manages capacitor charging and discharging at extreme conditions. Simulation results are presented to verify the efficacy of the proposed system in suppressing short term wind power fluctuations.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Achieving business and IT integration is strategic goal for many organisations – it has almost become the ‘Holy Grail’ of organisational success. In this environment Enterprise Resource Planning (ERP) packages have become the defacto option for addressing this issue. Integration has come to mean adopting ERP, through configuration and without customization, but this all or nothing approach has proved difficult for many organisations. In part 1 of a 2 part update we provide evidence from the field that suggests that whilst costly, if managed appropriately, customization can have value in aiding organisational integration efforts. In part 2, we discuss in more detail the benefits and pitfalls involved in enacting a non-standard based integration strategy.