895 resultados para power line communication


Relevância:

30.00% 30.00%

Publicador:

Resumo:

Purpose: – The purpose of this paper is to document the progress made in a specified period and the experience of managers and staff in sustaining the high performance team approach in a plastics factory.

Design/methodology/approach: – Single-case analysis was conducted on data collected through semi-structured interviews and site observations made with two managers and one team of six in a multinational plastics manufacturer (Visy) headquartered in Australia.

Findings: – Based on the authors' experiences and literature review a successful high performance team requires clear targets and efficiency standards, communication, rules of behaviour, continual input of facts and feedback, and last but not least – recognition of successes.

Research limitations/implications: – The findings are based on observations and interviews conducted in one part of a multinational organization in Australia. No follow-up interviews could be undertaken to track the progress.

Originality/value: – No other similar study had been undertaken in this organisation documenting the experiences of a quality improvement team and its interactions with managers. The findings have practical implications for industrial and other kinds of organisations engaged in implementing quality improvements through enhanced teamwork.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

This research investigated the effect of dynamically repositioning the geographic location of a mobile base station within a sensor network in order to reduce energy consumption and increase network lifetime. Through simulation and experimental methodology, the proposed approach outperformed existing methods by extending network lifetime whilst reducing energy consumption.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

A biographical work presenting 19th century South Australian surveyor general and founder of Darwin, George Goyder, as a significant figure in colonial environmental history. Focuses on tracing the growth of experience and insight which enabled him to map, as Goyder's line, his insight into the importance of rainfall variability.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

One way to represent and communicate density in the spatial disciplines including architecture, town planning and geography is through the map, plan or aerial photograph. These media and tools are generally perceived to be objective and analytical modes of practice. But what else do these modes of representation mediate? The paper will respond to this question by exploring notions of ontology, notions of dwelling and being in relation to lines and drawing techniques. A map or plan is an image, in addition to a mode of communication, and affects visual pleasure. As proposals of an unbuilt world and documents of existing environment, drawings contain lines of desire. The thesis is that the lines provide a corporeal framework for an imaginary projection between the viewer and a ‘real’ built environment. The paper becomes focussed on the specifics of the ‘green line’ that has represented post-war Beirut, and is typical of representation of sites of conflict.

In the plans of post-war Beirut an almost straight line running from the top to the bottom of the page is highlighted and represents a trajectory from the Place des Martyr to the Pine Forest. To descend from this metaphoric height of the map into the streets of Beirut is to confront urban density, traffic congestion, pollution exacerbated by dust, and a lack of greenery. During the war much of the fighting occurred across this marker, and since, it has been described as an empty neutral space due to the destruction of edifices on either side, and is often proposed as the only appropriate site for building projects of national significance. Is its emptiness an a priori condition of imaginary projections? Will it remain forever empty of the density everywhere else in Beirut? Who wants to dwell there?
This paper will examine the several nuances of the ‘green line’ and what role it plays between representation and defining ontological environments.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

This thesis explores the voices of Aboriginal women in the Reconciliation movement from 1991to 2001. It charts their success and failure, the power of the media and Reconciliation symbolism. Some of these women leaders retain a passionate commitment to Reconciliation while others have totally withdrawn from the process.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

This article reports research that attempts to characterize what is powerful about digital multimodal texts. Building from recent theoretical work on understanding the workings and implications of multimodal communication, the authors call for a continuing empirical investigation into the roles that digital multimodal texts play in real-world contexts, and they offer one example of how such investigations might be approached. Drawing on data from the practice of multimedia digital storytelling, specifically a piece titled “Lyfe-N-Rhyme,” created by Oakland, California, artist Randy Young (accessible at http://www.oaklanddusty.org/videos.php), the authors detail the method and results of a fine-grained multimodal analysis, revealing semiotic relationships between and among different, copresent modes. It is in these relationships, the authors argue, that the expressive power of multimodality resides.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

In both policy and practice, collusion is a perplexing area of academic integrity. Students are expected to learn to work collaboratively in university courses, yet are often required to submit assessment tasks as individuals whilst in group-work situations. This paper discusses the tension between 'collaboration' and 'collusion' in group-work and the consequences for crossing the line. Adopting a theoretical framework from Bourdieu's work (Bourdieu and Passeron, 1971; Bourdieu, 1991) on symbolic power, the notion of legitimate voice and intertextuality, this paper outlines the effects on the academic identities of 17 students found 'guilty' of collusion in one Australian university. In addition, 34 staff involved in formal disciplinary procedures were interviewed. The findings indicate that collusion is a fraught notion and not approached systematically across the university, nor with any degree of confidence by staff or students. The delineation between 'acceptable collaboration' and 'collusion' appears to be founded in shifting sands, with negative attitudes towards collaborative tasks being the main lesson learned by students.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

All over the world, electrical power systems are encountering radical change stimulated by the urgent need to decarbonize electricity supply, to swap aging resources and to make effective application of swiftly evolving information and communication technologies (ICTs). All of these goals converge toward one direction; ‘Smart Grid.’ The Smart Grid can be described as the transparent, seamless, and instantaneous two-way delivery of energy information, enabling the electricity industry to better manage energy delivery and transmission and empowering consumers to have more control over energy decisions. Basically, the vision of Smart Grid is to provide much better visibility to lower-voltage networks as well as to permit the involvement of consumers in the function of the power system, mostly through smart meters and Smart Homes. A Smart Grid incorporates the features of advanced ICTs to convey real-time information and facilitate the almost instantaneous stability of supply and demand on the electrical grid. The operational data collected by Smart Grid and its sub-systems will allow system operators to quickly recognize the best line of attack to protect against attacks, susceptibility, and so on, sourced by a variety of incidents. However, Smart Grid initially depends upon knowing and researching key performance components and developing the proper education program to equip current and future workforce with the knowledge and skills for exploitation of this greatly advanced system. The aim of this chapter is to provide a basic discussion of the Smart Grid concept, evolution and components of Smart Grid, environmental impacts of Smart Grid and then in some detail, to describe the technologies that are required for its realization. Even though the Smart Grid concept is not yet fully defined, the chapter will be helpful in describing the key enabling technologies and thus allowing the reader to play a part in the debate over the future of the Smart Grid. The chapter concludes with the experimental description and results of developing a hybrid prediction method for solar power which is applicable to successfully implement the ‘Smart Grid.’

Relevância:

30.00% 30.00%

Publicador:

Resumo:

An operational transconductance amplifier (OTA) using dynamic threshold MOS (DTMOS) and hybrid compensation technique is presented in this paper. The proposed topology is based on a bulk and gate driven input differential pair. Two separate capacitors are employed for the OTA compensation where one of them is used in a signal path and the other one in a non-signal path. The circuit is designed in the 0.18μm CMOS TSMC technology. The proposed design technique shows remarkable enhancement in unity gain-bandwidth and also in DC gain compared to the bulk driven input differential pair OTAs. The Hspice simulation results show that the amplifier has a 92dB open-loop DC gain and a unity gain-bandwidth of 135kHz while operating at 0.4V supply voltage. The total power consumption is as low as 386nW which makes it suitable for low-power bio-medical and bio-implantable applications.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

A highly linear, low voltage, low power, low noise amplifier (LNA) using a novel nonlinearity cancellation technique is presented in this paper. Parallel Inductor (PI) matching is used to increase LNA gain by 3dB at the desired frequency. The linear LNA was designed and simulated in a TSMC 0.18μm CMOS process at 5GHz frequency. By employing the proposed technique, the IIP3 is improved by 12dB in contrast to the conventional folded cascode LNA, reaching −1dBm without having any significant effect on the other LNA parameters such as gain, NF and also power consumption. The proposed LNA also delivers a voltage gain (S21) of 12.25dB with a noise figure of 3.5dB, while consuming only 1.28mW of DC power with a low supply voltage of 0.6V.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

 Across the 1990s, Indonesian writers used the short story genre to represent human rights abuses in Indonesia.These rights included freedom of speech, right to life and right to assembly. The short story had great impact, depicting dramatically both perpetrators and victims, and exposing the social, economic and political conditions which bred such abuses.