1000 resultados para Mean Queues


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The residential market in Melbourne is often referred to as the ‘auction capital of the world’ with approximately 30-35% of housing transfers undertaken via the auction process, most of which are conducted on the weekend and then reported in the media the following day. The most quoted measurement of auction success is via the clearance rate which simply indicates the proportion of signed contracts of sale within the auction process. At the same time the clearance rate can have a relatively large variance where the residential market can traditionally range from very good (i.e. a high clearance rate) to very poor (i.e. a low clearance rate). The subsequent effect on the market can directly increase or decrease demand, predominantly based only on this single measure of the perceived level of auction clearance rates only.

This paper examines the concept of the auction clearance rates and the heavy reliance on the only one measure of success (i.e. the clearance rates), regardless of other variables. The emphasis is placed on the auction clearance rate as one measure of demand in the housing market but within the context of the definition of market value i.e. willing buyer-willing seller. This is supported by a discussion about other variables including the asking price, the auction process itself, marketing considerations and seasonal adjustments. The findings provide an insight into how to correctly interpret the auction clearance rate in the context of the overall supply-demand interactions. Whilst the auction process is clearly an integral part of the residential transfer process it is essential that the auction clearance rate is used with caution and also in conjunction with other variables.

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In this paper we provide a systematic investigation of a family of composed aggregation functions which generalize the Bonferroni mean. Such extensions of the Bonferroni mean are capable of modeling the concepts of hard and soft partial conjunction and disjunction as well as that of k-tolerance and k-intolerance. There are several interesting special cases with quite an intuitive interpretation for application.

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Critical research in education is not what it used to be. It must now engage with a differently structured and globalized world with different social and material conditions for its peoples. This paper sets out to name the contemporary structure of feeling in which education researchers now work, particularly in terms of what now is to be the object of their educational theorizing and research and what are to be the intellectual resources brought to bear on such activity. The intention is to open up debate, recognizing that there are no easy answers and yet acknowledging the need for answers to be attempted. It is, therefore, an invitation premised on an optimism of the will to complement legitimate pessimism of the intellect. It concludes that a critical engagement with these matters demands a modernist/postmodernist, reconstructive/deconstructive reflexivity in the mobilizing of a new sociological imagination applied across the broad spectrum which is educational research.

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The Bradley report argues that we need a more "sophisticated approach" to equity. This includes a joined-up approach to TAFE and higher education. We need to think in terms of a tertiary system and to examine the pathways between them for their equity consequences.

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Measurements have been made of the solvation forces between mica surfaces in the even-numbered n-alkanes from hexane to hexadecane. In all cases the force law is qualitatively very similar, characterized by a decaying oscillatory function of distance, as occurs for simple isotropic liquids. The spacing between successive minima in the force does not increase with carbon number, and is comparable to the width of a linear alkane molecule rather than its length or any average diameter. This suggests that the alkanes have some tendency towards a parallel orientation near the mica surfaces. The measurements give no indication of any strong repulsive component expected from mean-field theories of higher alkanes or polymers. The results of one such theory are presented, and the reasons for its failure to match the experimental data are discussed.

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The effects of high pressure on molecular arrangment in liquid crystals were observed by optical measurements on two nematogens. It was possible to deduce how volume varies as a factor of temperature and pressure and how nematic order parameter changes under the influence of high pressure.

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There is growing recognition that promoting wellbeing requires a holistic approach to social work practice which includes understanding the role of religion in the lives of service users. This is reflected in a number of mentions of religion in the new code of ethics produced by the Australian Association of Social Workers. However, any consideration of whether religion has a place in social work should not only occur at the individual level, but also consider faith-based agencies. This paper considers the implications of this for social work education in respect of developing curriculum which acknowledges the religious dimension of the lives of many service users; skill development to enable social workers to broach issues of religion with service users; and working in or with faith-based agencies.

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To learn more about the governance of sport organizations, this study explored what meaning board members of national sport organizations (NSOs) attach to the concept of "strategic capability". In so doing, the inquiry also identified factors considered to constrain or enable board strategic function. This paper draws on a body of knowledge developed over 38 years on board strategic function, primarily from the commercial setting but also from the emerging body of work in the nonprofit and sport governance setting. Located within the interpretive research paradigm this study engaged a range of different qualitative methods including cognitive mapping and visual imagery. Working across two NSOs in New Zealand, four elements were generated that served as reference points in mapping out the meaning of a strategically able board. These were categorized as the need to have capable people, a frame of reference, facilitative board processes, and facilitative regional relationships.

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As mean fibre diameter (MFD) is the primary determinant of mohair price we aimed to quantify the lifetime changes in mohair MFDas Angora goats aged and grew. Measurements were made over 12 shearing periods on a population of Angora goats representing the current range and diversity of genetic origins including South African, Texan and interbred admixtures of these and Australian sources. Records of sire, dam, birthweight, birth parity, liveweight, fleece growth and fleece quality were taken for does and castrated males (wethers) (n = 267 animals). Fleece-free liveweights (FFLwt) were determined for each goat at shearing time by subtracting the greasy fleece weight from the liveweight recorded immediately before shearing. A restricted maximum likelihood growth curve model was developed for relating MFD to FFLwt, age and other measurements.Asimple way of describing the results is:MFD= k (FFLwt)b E; where k is a parameter that can vary in a systematic way with shearing(age), breed, weaning weight, sire, dam and individual; b is a parameter that is the same for nearly the whole study; and E are independent errors from a log-normal distribution. The analysis shows that ^b = 0.34, with s.e. (^b) = 0.021. Thus, mohair MFD was allometrically related to the cube root of FFLwt over the lifetime of Angora goats. However, the allometric proportionality constant differed in a systematic way with age at shearing, genetic strain, weaning weight, sire, dam and individual. For Texan-breed goats, MFD decreased as weaning weight increased (P = 0.00016). The findings indicate that management factors that affect liveweight and weaning weight have lifetime effects on mohair fibre diameter and therefore the value of mohair and the profitability of the mohair enterprise.

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This paper presents ‘narrative’ as a theoretically informed qualitative perspective to explore and substantiate such abstract concept as ‘museum impact’. It argues that the impact of museums is best understood via the meanings visitors make and negotiate in the long-term. This provides critical insights into what a museum visit means and how its impact is negotiated within time and space. I lay out the theoretical rationale and methodological approach for the research project underpinning this paper while future publications will provide empirical findings and theoretical conclusions.

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This paper proposes an innovative optimized parametric method for construction of prediction intervals (PIs) for uncertainty quantification. The mean-variance estimation (MVE) method employs two separate neural network (NN) models to estimate the mean and variance of targets. A new training method is developed in this study that adjusts parameters of NN models through minimization of a PI-based cost functions. A simulated annealing method is applied for minimization of the nonlinear non-differentiable cost function. The performance of the proposed method for PI construction is examined using monthly data sets taken from a wind farm in Australia. PIs for the wind farm power generation are constructed with five confidence levels between 50% and 90%. Demonstrated results indicate that valid PIs constructed using the optimized MVE method have a quality much better than the traditional MVE-based PIs.