Showing papers by "Swinburne University of Technology published in 1988"
TL;DR: In this paper, the authors studied the flotation behavior of quartz particles, whose surfaces have been hydrophobized to varying extents with an organosilane compound, and found that the attachment process is most efficient for particles of about 38 μm in diameter under the experimental conditions.
218 citations
TL;DR: Using a dynamic programming formulation, an analysis of the innings of the team which bats first and that the team batting second has an advantage is presented to shed some light on possible batting tactics.
Abstract: Using a dynamic programming formulation, an analysis is presented of the innings of the team which bats first (here referred to as the first innings) and the innings of the team which bats second (here referred to as the second innings). This allows a calculation, at any stage of the innings, of the optimal scoring rate, along with an estimate of the total number of runs to be scored (in the first innings) or the chance of winning (in the second innings). The analysis is used to shed some light on possible batting tactics (in terms of the best run rate at any stage of the innings), to quantify the effects of selecting extra batsmen in a side, and to suggest a method for the development of alternative measures of player performance. Results suggest that scoring rates should be more uniform than at present, and that the team batting second has an advantage. Possible extensions to the model are discussed.
94 citations
TL;DR: In this paper, the authors present some recent data on why organizations invest in exercise and physical fitness programs for their stiff, concluding that, owing to a lack of evaluation studies, organizations act mainly on the basis of assumption and belief.
Abstract: This paper presents some recent data on why organizations invest in exercise and physical fitness programmes for their stiff. These data suggest that, owing to a lack of evaluation studies, organizations act mainly on the basis of assumption and belief. However, from a subsequent review of the available literature on the personal and organizational effects of such programmes, it appears that these assumptions and beliefs are not altogether unfounded. The paper concludes by discussing the ways in which exercise and employee fitness programmes might help die individual and their organization in terms of the management of health at work.
31 citations
TL;DR: In this paper, a computer program has been developed to calculate the critical properties of binary mixtures from Deiters' equation of state, which gives good results for mixtures of moderately different size molecules whereas Guggenheim's equation is superior for dissimilar size molecules.
17 citations
13 citations
TL;DR: In this paper, a range of standard subjective well-being and self-report personality measures was administererd by means of a structured interview to 144 subjects, and multiple regression analysis showed general emotional vulnerability followed by interpersonal warmth to be highly predictive of SWB.
Abstract: Costa and McCrae have proposed that neuroticism and interpersonal warmth are major determinants of subjective well-being (SWB) while gregariousness is not. To test this formulation, a range of standard SWB and self-report personality measures was administererd by means of a structured interview to 144 subjects. Multiple regression analysis showed general emotional vulnerability followed by interpersonal warmth to be highly predictive of SWB. Gregariousness was not significantly predictive of SWB. The findings imply that the amount of social support available to an individual may be less important in contributing to well-being than is generally believed.
7 citations
TL;DR: For males, both relationship quality and personality characteristics of neuroticism and extraversion were significantly related to psychological adjustment, however, for females, perceived relationship quality was not related to well-being once the effects of personality characteristics were controlled for.
Abstract: The finding (Cramer, 1985) that psychological adjustment is positively related to facilitative relationship quality for females but not for males was not supported in a study of 61 couples. For males, both relationship quality and personality characteristics of neuroticism and extraversion were significantly related to psychological adjustment. However, for females, perceived relationship quality was not related to well-being once the effects of personality characteristics were controlled for. These findings are consistent with other reports of gender and sex- role differences in the process of social relationship support utilization. The findings may have implications for marital counselling.
6 citations
TL;DR: In this article, the authors examined the use of recently developed equations of state for critical phenomena and concluded that Deiters' equation is incapable of accurately predicting the gas-liquid critical properties of mixtures of dissimilar size molecules whereas a hard convex body equation does not yield significantly better results than a simple hard sphere equation.
5 citations
TL;DR: It was concluded that the volunteer counsellors were likely to be able to respond adequately to most presenting problems, with the possible exception of calls concerning sexual abuse of children.
Abstract: SynopsisThis paper reports a study of the counselling services offered by Parents Anonymous, a mutual-aid organisation which offers help to persons with problems involving child abuse. The overall goals of the study were to determine the effectivenes of the program of recruiting, training and supervising volunteer telephone counsellors; and to determine the level of client satisfaction with the face-to-face counselling help provided. It was concluded that the volunteer counsellors were likely to be able to respond adequately to most presenting problems, with the possible exception of calls concerning sexual abuse of children. The mayority of clients surveyed were satisfied with the face-to-face counselling help received.
4 citations
3 citations
TL;DR: In this article, a survey of 60 Australian manufacturing companies was conducted and it was discovered that it is possible to categorize companies according to their formal corporate planning systems and the degree of sophistication therein.
01 Jan 1988
TL;DR: In this paper, a quasi-two-dimensional temperature model for the cooling of structural steel sections is presented, where a minimal temperature differential between different parts of the steel sections was obtained.
Abstract: The development and application of a quasi-two-dimensional temperature model for the cooling of structural steel sections is presented. Utilising an intensive enhanced water cooling regimen, a minimal temperature differential between different parts of the steel sections is obtained.
TL;DR: O'Driscoll and Rizzo as mentioned in this paper, 1988). The Economics of Time and Ignorance by Gerald P. o'driscoll if and Mario J. Ritzo if.
Abstract: (1988). The Economics of Time and Ignorance by Gerald P. o'Driscoll if. and Mario J. Rizzo (Blackwell, Oxford, 1985), pp. X + 261, 8.50, ISBN 0-631-15484-1. Prometheus: Vol. 6, No. 2, pp. 437-438.
01 Jan 1988
TL;DR: The methods of structural analysis presented in the previous chapters have been based on relationships between internal actions and displacements of the elements of a structure, and on relationship between the external loads and the internal actions.
Abstract: The methods of structural analysis presented in the previous chapters have been based on relationships between internal actions and displacements of the elements of a structure, and on relationships between the external loads and the internal actions. The relationships have been based on two fundamental requirements in the analysis of static structural systems: firstly that the structure must be in equilibrium, and secondly that the deformation of the structure must be compatible and meet the boundary conditions. Equilibrium has been satisfied by applying the equations of statics, while compatibility has been based on the geometry of the elastic curve or the geometry of the deformed element. The resulting techniques have been general enough to cover a wide range of structural analysis problems for both statically determinate and statically indeterminate systems.
01 Jan 1988
TL;DR: Structural analysis was the first aspect to which digital computers were applied and is now carried out as a routine design office procedure on a wide range of computer systems.
Abstract: Structural analysis, the fundamentals of which are the subject of this text, is simply a part of the overall design process in structural engineering. Since it often requires considerable computational effort though, it is not surprising to learn that the analysis was the first aspect to which digital computers were applied. What might be described as computer aided analysis is now carried out as a routine design office procedure on a wide range of computer systems.
01 Jan 1988
TL;DR: The general basis of the matrix stiffness method was well understood prior to the development of the digital computer, so that analysts were left with having to find the solution to a large number of simultaneous equations by hand calculation, or to avoid them.
Abstract: It is a characteristic of the structural analysis problem that most formulations lead to the need to solve a set of simultaneous equations. Without using a computer or programmable calculator, solving four or more equations is a tedious, if not daunting, task that most people would prefer to avoid. The general basis of the matrix stiffness method as presented in earlier chapters was well understood prior to the development of the digital computer, so that analysts were left with having to find the solution to a large number of simultaneous equations by hand calculation, or to avoid them.
01 Jan 1988
TL;DR: All structural analysis is approximate since some idealisation of structural behaviour is involved in proposing the model for analysis and there are clear cases where a known principle is relaxed, or a condition is assumed, that makes the analysis approximate in the accepted sense of the word.
Abstract: Experienced structural engineers have expressed a concern that the adoption of computer-based methods of analysis and design will lead to a generation of structural engineers who have little feel for and understanding of structural behaviour. Engineering educators are aware of this and many have noted the blind fascination that students seem to have for numbers forming the output of a computer. There are several ways of tackling the problem. One solution lies in the way in which the interface between the user and the computer program is developed. The user should have a feeling of being in control and not being divorced from an automatic process. Alternatively, and more importantly, structural engineers must be trained continually to exercise engineering judgement on the results from computer programs or other methods of analysis. One way of achieving this last objective is to introduce a study of approximate methods of structural analysis. In one sense, all structural analysis is approximate since some idealisation of structural behaviour is involved in proposing the model for analysis. However, there are clear cases where a known principle is relaxed, or a condition is assumed, that makes the analysis approximate in the accepted sense of the word.
01 Jan 1988
TL;DR: In this paper, a general technique applicable to all classes of structure is presented, which uses coordinate transformation and it is first necessary to discuss the axes of reference used to define the structure and its actions.
Abstract: In a final presentation of the matrix stiffness method of structural analysis, a general technique applicable to all classes of structure is outlined. The technique uses coordinate transformation and it is first necessary to discuss the axes of reference used to define the structure and its actions.
01 Jan 1988
TL;DR: The analysis of structures has long been a subject of enquiry by intellectual man as discussed by the authors, and attempts to determine the nature of forces within structures has kept pace with man's determination to build.
Abstract: The analysis of structures has long been a subject of enquiry by intellectual man. Attempts to determine the nature of forces within structures has kept pace with man’s determination to build. Serious study commenced in the 16th and 17th Centuries with scholars such as Leonardo Da Vinci and Galileo Galilei. Rapid progress was made during the 18th and 19th Centuries, and particularly in the Industrial Revolution, when many classical theories of structural behaviour were first put forward. More recently, the advent of the digital computer has led to a re-appraisal of the theory of structures. It is now expected that computations associated with the analysis of structures will be carried out by computer.