A decision support tool for resource allocation in batch manufacturing

A decision support tool for production planning is discussed in this paper to perform the job of machine grouping and labour allocation within a machining line. The production plans within the industrial partner have been historically inefficient because the relationship between the cycle times, the machine group size, and the operator's utilisation hasn't been properly understood. Starting with a simulation model, a rule-base has been generated to predict the operator's utilisation for a range of production settings. The resource allocation problem is then solved by breaking the problem into a series of smaller sized tasks. The objective is to minimise the number of operators and the difference between the maximum and minimum cycle times of machines within each group. The results from this decision support tool is presented for the particular case study.

Practicality of a technological tool for the teaching of the first year psychology students

The current paper discusses the applicability of an online manual for the teaching of first year psychology laboratory programs and compares it with conventional teaching methods. For the first time, in 2001, the manual for the first year program was made available via a website. This method was in contrast to the text manual that was utilised previously. When the text manual was used, students needed to bring it each week to class. However, with the online manual, students were required to be cognisant of several aspects of the week's laboratory agenda prior to attending the class and did not have immediate access to the manual in class. This was quite uncustomary to both students and staff members and therefore necessitated a great amount of time to be spent reviewing the contents of the week's work before attending class. It also caused inconvenience both in terms of students not having ready access to necessary information, and staff having to photocopy bulk information as and when required. What was discovered at the end of the semester was that a technological tool, because of its ability to provide easy access, may not be applicable to teach all subjects, particularly not the psychology lab program, and hence a thorough evaluation of the practicality of the device is required prior to adoption.

Flavour as an analytical tool : an anti-inflammatory compound in olive oil

The chemical senses have been underutilised as analytical instruments, although as detectors of chemicals our senses are highly specialised biological machines. This paper reviews the current state of knowledge of the chemical senses. A novel technique was used to isolate and identify a flavour-active non-steroidal antiinflammatory compound in virgin olive oil.

Critical incident analyses : a practice learning tool for students and practitioners

The development of critical skills in social work students and practitioners has been a major focus of social work education and training in recent years. Critical incident analysis has developed as a tool to aid critical reflection in practice, in health and social work. This paper provides an overview of the use of the tool in these fields. It then reports on a demonstration project which sought to examine how critical incident analysis might be used as a form of assessment and as a supervisory tool by social work students and practice teachers. An evaluation of the project is provided. Completion of critical incident analyses using the framework was found to provide a structured approach to critical reflection. It assisted the integration of theory and practice and the examination of value issues. Students and practice teachers identify its use in supervision and its potential as an assessment tool. The paper concludes with a discussion on the potential uses of critical incident analyses, with particular attention given to its use to develop anti-oppressive practice.

Two-mode overconstrained three-DOFs rotational-translational linear-motor-based parallel-kinematics mechanism for machine tool applications

The paper introduces a family of three-DOFs translational-rotational Parallel-Kinematics Mechanisms (PKMs) as well as the mobility analysis of such family using Lie-group theory. Each member of this family has two-rotational one-translational DOFs. A novel mechanism is presented and analyzed as a representative of that family. The use and the practical value of that modular mechanism are emphasized.

The right tool for the job? Use of the multiple intelligences and Bloom's taxonomy grid

This article explores the tacit understanding of teachers in the field of gifted educational practices after their participation in gifted education professional development. The data for this article are drawn from a single-case qualitative study where semi-structured interviews were held with teachers, administrators and support staff in a metropolitan Victorian primary school. The findings lead to two main arguments: first, that some teachers preserved their deeply entrenched beliefs and assumptions about the gifted, the talented and intelligence[s]; and second, that teachers, without critical examination, eagerly adopted and adapted Gardner's Multiple Intelligences theory, overlaid with Bloom's Revised Taxonomy of Thinking as a means for addressing individual differences in the classroom. The article argues that teachers welcomed the Gardner/Bloom matrix for its 'tick-the-box' simplicity, with little insight into the theoretical models. Whilst the matrix had an immediate value in the mixed ability classrooms, in the long term it did not support the learning needs of gifted students. [Author abstract]

Producing a GIS based multiple criteria analysis tool for regional sustainability assessment: the problem of weighting

Decision support tools will be useful in guiding regions to sustainability. These need to be simple but effective at identifying, for regional managers, areas most in need of initiatives to progress sustainability. Multiple criteria analysis (MCA) is often used as a decision support tool for a wide range of applications. This method allows many criteria to be considered at one time. It does this by giving a ranking of possible options based on how closely each option meets the criteria. Thus, it is suited to the assessment of regional sustainability as it can consider a number of indicators simultaneously and demonstrates how sustainability can vary at small scales across the region. Coupling MCA with GIS to produce maps, allows this analysis to become visual giving the manager a picture of sustainability across the region. To do this each indicator is standardised to a common scale so that it can be compared to other indicators. A weighting is then applied to each indicator to calculate weighted summation for each area in the region. This paper argues that this is the critical step in developing a useful decision support tool. A study being conducted in south west Victoria demonstrates that the weights chosen can have a dramatic impact on the results of the sustainability assessment. It is therefore imperative that careful consideration be given to determining indicator weights in a way that is objective and fully considers the impact of that indicator on regional sustainability.

On-line tool condition monitoring and control system in forging processes

Cold bulk metal forming has made large-scale production of small complex solid parts economically feasible. Tooling used in metal forming poses many uncertainties in the preliminary cost estimation and production process and continual tool replacement and maintenance dramatically reduces productivity and raises manufacturing cost. In order to tackle this, an on-line tool condition monitoring system using artificial neural network (ANN) to integrate information from multiple sensors for forging process has been developed. Together with the force, acoustic emission signals and process conditions, information developed from theoretical models is integrated into the ANN tool monitoring system to predict tool life and provide the maintenance schedule.

Equity-focused health impact assessment: a tool to assist policy makers in addressing health inequalities.

In Australasia (Australia and New Zealand) the use of health impact assessment (HIA) as a tool for improved policy development is comparatively new. The public health workforce do not routinely assess the potential health and equity impacts of proposed policies or programs. The Australasian Collaboration for Health Equity Impact Assessment was funded to develop a strategic framework for equity-focused HIA (EFHIA) with the intent of strengthening the ways in which equity is addressed in each step of HIA. The collaboration developed a draft framework for EFHIA that mirrored, but modified the commonly accepted steps of HIA; tested the draft framework in six different health service delivery settings; analysed the feedback about application of the draft EFHIA framework and modified it accordingly. The strategic framework shows promise in providing a systematic process for identifying potential differential health impacts and assessing the extent to which these are avoidable and unfair. This paper presents the EFHIA framework and discusses some of the issues that arose in the case study sites undertaking equity-focused HIA.

Determination of astaxanthin steroisomers and colour attributes in flesh of rainbow trout (Oncorhynchus mykiss) as a tool to distinguish the dietary pigmentation source

The presence of carotenoids in animal tissue reflects their sources along the food chain. Astaxanthin, the main carotenoid used for salmonid pigmentation, is usually included in the feed as a synthetic product. However, other dietary sources of astaxanthin such as shrimp or krill wastes, algae meal or yeasts are also available on the market. Astaxanthin possesses two identical asymmetric atoms at C-3 and C-3' making possible three optical isomers with all-trans configuration of the chain: 3S,3'S, 3R,3'S, and 3R,3'R. The distribution of the isomers in natural astaxanthin differs from that of the synthetic product. This latter is a racemic mixture, with a typical ratio of 1:2:1 (3S,3'S:3R,3'S:3R,3'R), while astaxanthin from natural sources has a variable distribution of the isomers deriving from the different biological organism that synthesized it. The high-performance liquid chromatographic (HPLC) analysis of all-trans isomers of astaxanthin was performed in different pigment sources, such as red yeast Phaffia rhodozyma, alga meal Haematococcus pluvialis, krill meal and oil, and shrimp meal. With the aim to investigate astaxanthin isomer ratios in flesh of fish fed different carotenoid sources, three groups of rainbow trout were fed for 60 days diets containing astaxanthin from synthetic source, H. pluvialis algae meal and P. rhodozyma red yeast. Moreover, the distribution of optical isomers of astaxanthin in trout purchased on the Italian market was investigated. A characteristic distribution of astaxanthin stereoisomers was detected for each pigment sources and such distribution was reproduced in the flesh of trout fed with that source. Colour values measured in different sites of fillet of rainbow trout fed with different pigment sources showed no significant differences. Similarly, different sources of pigment (natural or synthetic) produced colour values of fresh fillet with no relevant or significant differences. The coefficient of distance computed amongst the feed ingredient and the trout fillet astaxanthin stereoisomers was a useful tool to identify the origin of the pigment used on farm.

The overt behaviour scale (OBS): a tool for measuring challenging behaviours following ABI in community settings

OBJECTIVES: The Overt Behaviour Scale (OBS) was designed as a comprehensive measure of common challenging behaviours observed after acquired brain injury (ABI) in community settings. The OBS comprises 34 items in nine categories that measure aggression, inappropriate sexual behaviour, perseveration, wandering, inappropriate social behaviour and lack of initiation. The aim of the current study was to determine the reliability, validity and responsiveness of the OBS. METHOD: Two adult community-based samples of people with ABI were recruited. Sample 1 (n= 30) were concurrently evaluated on the OBS by two raters and again 1 week later to test stability. Other validating scales were also administered. Sample 2 (n= 28) were clients of the ABI Behaviour Consultancy who were treated for challenging behaviours and were administered the OBS before treatment commenced and then again 4 months later. RESULTS: Inter-rater reliability and stability coefficients for the OBS total score was strong (0.97 and 0.77, respectively). Initial evidence of convergent and divergent validity was shown by the differential pattern of correlations with other measures. Moderate-to-strong coefficients (range 0.37-0.66) were observed between the OBS and other measures that had behavioural content (i.e. Mayo-Portland Adaptability Inventory, Current Behaviour Scale, Neurobehavioural Rating Scale-Revised). Divergent validity was shown by the lack of correlation between the OBS and the sub-scales of these tools that do not measure challenging behaviour. Finally, responsiveness was demonstrated with a significant decrease in OBS scores in the expected direction over the 4-month period. This improvement was confirmed by corroborating evidence from key informants. CONCLUSION: The OBS shows promise as a reliable, valid and responsive measure that can be used for the systematic assessment of challenging behaviours in community settings.