Showing papers by "University of Wollongong published in 1976"

Modelling the Port as an Operational System: A Perspective for Research

Abstract: Geographic studies of port morphology—descriptions of land use patterns and functions, of land use changes, of the evolution of form, and of the regularities in that form—have failed to develop qua...

Sequence in Australian coal seams

Abstract: An embedded Markov model is used to test microlithotype analyses of subsections of a wide range of Australian coal seams for the presence of nonrandom sequences of lithologies. The data for individual seams, transformed to give five states (four states if dirt bands are excluded),were summed into geologically and geographically distinct groupings. The results suggest that dirt bands form an essential part of the sequences and that partial or complete cyclicity is present in many seam groupings. The cyclicity is either asymmetric or partially symmetric with the vitrite +clarite content of the coal decreasing upwards within each cycle. A new cycle is marked either by a sharp reversion, or by a slightly gradational reversion, to a vitrite +clariterich lithology. This reversion may or may not be preceded by a dirt band. In virtually all groupings, a vitrite +clarite-rich lithology is the most likely type after a dirt band. The sequences are similar to those that have been described in European coals and it seems probable that the presence of intraseam, cyclic sequences is a normal, rather than an unusual condition, within coal seams. This cyclicity is a response to changes in the sedimentation balance. These changes are probably due in large part to processes originating within the peat-forming environment but processes external to this environment are also likely to produce cyclic sequences of coal lithologies.

The mass spectrometric identification of dipeptide mixtures obtained from dipeptidylaminopeptidase. I—hydrolysates†

Abstract: The amino acid sequence of a polypeptide can be deduced by an identification of all the dipeptides obtained from a Dipeptidylaminopeptidase I hydrolysate of the original polypeptide and its des N-terminal amino acid derivative. The components of such dipeptide mixtures can be readily identified from the chemical ionization (helium) mass spectra of their N-ethoxycarbonylpropenyl methyl ester derivatives without prior separation. The pyrolytic conversion of N-protected peptide dimethyltrideuteromethyl anilinium salts to their methyl esters in the direct insertion probe of a mass spectrometer was found to be most suitable for the derivatization of such dipeptide mixtures.

Palynological evidence for the age of the synorogenic Brewer Conglomerate, Amadeus Basin, central Australia

Abstract: An assemblage of spores recovered from the Undandita Member of the Brewer Conglomerate, the uppermost unit of the Pertnjara Group in the Amadeus Basin of central Australia, establishes the age of that formation as Late Devonian. Comparison with spore assemblages from sedimentary basins in Western Australia indicates that the central Australian assemblage is dateable within the post-early Frasnian to pre-late Famennian interval. Fish remains and spores previously described from the Parke Siltstone at the base of the Pertnjara Group are of probable early Frasnian age, so it now appears that the entire group was deposited during the Late Devonian. The Brewer Conglomerate is of synorogenic origin, and was deposited during uplift associated with the Alice Springs Orogeny; the spore data thus indicate that this tectonic event began in the Late Devonian. Isotopic age determinations in the Arltunga Nappe Complex and the Strangways Range of the Arunta Block have yielded Early Carboniferous dates. These possibly re...

Some extensions of the keyfitz momentum relationship

Abstract: A stable population, such that the total birthrateB(t) =Boerot, is abruptly altered by modifying the age-specific birth rate,m(x). The survivor function remains unaltered. The modified population ultimately settles down to a stable behavior, such thatB(t) =B1er1t. It is shown thatB1/B0 = (R0 −R1)/[(r0 −r1)R0Z1], whereR0,R1 are the net reproduction rates before and after the change, and\(\bar Z_1 \) expected age giving birth for the stable population after the change. The age structure and transients resulting from the change are also described. The effect of an abrupt change in the survivor functionl(x) is also investigated for the simple case where the change is caused by alteringl(x) toe−λxl(x). It is shown that the above ratio becomes\(B_1 /B_0 = N_1 /N_0 = [1 - \smallint _0^\infty e^{ - kx} g(x)dx]/\bar Z_1 \lambda \), whereN refers to the numbers in the population,k =r0 + λ, andg(x) =m(x)l(x), the value before the change. A measure for the reproductive worth of the population is also established.

Rapid and Quantitative Blood Analysis for Free Fatty Acids by Chemical Ionization Mass Spectrometry

Abstract: A quantitative analysis of fatty acids in micro-samples of dried blood spots by chemical ionization mass spectrometry has been developed. Isotope determination was used as the quantitating technique using the corresponding deuterium labeled internal standards. The procedure yields excellent precision and accuracy as demonstrated by the analysis of known fatty acid mixtures and of both C12:0 to C18:0 acids and phytanic acid in the blood from patients.

Palaeomagnetism, radiometric age and geochemistry of an adamellite at Yetholme, N.S.W.

Abstract: The adamellite that outcrops at Yetholme in central western New South Wales is a satellite body of the Bathurst batholith. Fresh exposures have recently become available in a new road cutting. Abundant potassium‐feldspar megacrysts and mafic xenoliths occur in the adamellite and it is cut by aplite and dolerite dykes. The fresh rocks have been sampled for petrological and geochemical studies and for radiometric dating. Palaeomagnetic data from three rock types (adamellite, xenoliths, and dolerite) indicate stability of magnetization. Results of all these studies complement each other. Radiometric ages (K‐Ar) for the adamellite and dolerite confirm a Late Carboniferous age (312 m.y.) of emplacement, as does a Rb‐Sr age (325 ± 17 m.y.) determination on the aplite. These confirm three earlier radiometric age determinations for the Bathurst batholith and country rocks and stratigraphic age estimates. The palaeomagnetic directions from these three (Yetholme) rock types agree well with other palaeomagn...

Orthogonal designs V: Orders divisible by eight

Abstract: Constructions are given for orthogonal designs in orders divisible by eight. These are then used to show all two variable orthogonal designs exist in orders 24, 32 and 48. The existence of two variable designs in order 40 and three variable designs in order 24 is discussed. The conjectures on the existence of all orthogonal designs (1, k) and skew-symmetric weighing matrices for weights k = 1, 2, ..., 2.t9-1 are resolved in the affirmative for orders 2.t9, t > 3 a positive integer. Disciplines Physical Sciences and Mathematics Publication Details Jennifer Seberry Wallis, Orthogonal designs V: Orders divisible by eight, Utilitas Mathematica, 9, (1976), 263-281. This journal article is available at Research Online: http://ro.uow.edu.au/infopapers/970 ORTHOGONAL DESIGNS V: ORDERS DIVISIBLE BY EIGHT Jennifer Seberry Wallis ABSTRACT. Constructions are given for orthogonal designs in orders divisible by eight. These are then used to show all two variable orthogonal designs exist in orders 24, 32 and 48. The existence of two variable designs in order 40 and three variable designs in order 24 is discussed. The conjectures on the existence of all orthogonal designs (1, k) and skew-symmetric weighing matrices for weights k = 1, 2, ... , 2:9-1 are resolved in the affirmative for orders 2:9, t ~ 3 a positive integer. Constructions are given for orthogonal designs in orders divisible by eight. These are then used to show all two variable orthogonal designs exist in orders 24, 32 and 48. The existence of two variable designs in order 40 and three variable designs in order 24 is discussed. The conjectures on the existence of all orthogonal designs (1, k) and skew-symmetric weighing matrices for weights k = 1, 2, ... , 2:9-1 are resolved in the affirmative for orders 2:9, t ~ 3 a positive integer.

Sectarianism versus Ecumenism: the Impact on British Churches of the Missionary Movement to India, c. 1800–1860

Abstract: In October 1826, an impassioned letter appeared in The Times , written by an outraged correspondent whose house had been entered unceremoniously by two offensive females who demanded first a donation towards the construction of a missionary training college and then a justification of his refusal to subscribe. He fulminated against the triumphalism of voluntary religious societies: ‘It seems “to grow by what it feeds on”’ The first half of the nineteenth century in Britain was certainly an age of ‘evangelical aggression’, and probably the modern missionary movement was making an impression on British society far deeper than it made on such countries as India and Africa, to which missionaries were sent. Missionary enthusiasm appears to have increased lay giving for home missions as well as foreign missions; it probably stimulated interest in home missions and increased the number of candidates for the ministry; it almost certainly provided a fillip to theological education; it reinforced the already existing tendency to express piety in activity rather than quiescence; it helped to bury fatalistic and deterministic theological systems; it appears to have appealed, like the later temperance movement, to all classes of society; and (perhaps related to the last claim) it declared war on denominational bigotry.

Theory of isomer shift in hemin

Abstract: Using the self-consistent charge extended Huckel procedure, the charge density difference Δϱ at Fe57 nucleus, between hemin and Fe+3 ion is calculated. This is combined with the recent value of the calibration constant, −0.23±0.02a 0 3 mm/sec to obtain an isomer shift of −0.374 mm/sec between hemin and Fe+3 in good agreement with the value −0.392 mm/sec derived from experimental data and the calculated value of the isomer shift of Fe+3 with respect to K3FeF6 from first principle covalency investigations in the latter compound. Δϱ is composed of contributions from core and valence electrons of the same order of magnitude, with the latter being more than one-half of the former. The core contribution is composed of a number of terms of comparable magnitude and differing signs, whose significance is discussed.

The mechanical behaviour of cerium-modified alpha-beta brass at high temperatures

Abstract: The mechanical behaviour of a fine-grained Cu-38.6% Zn alloy with and without 0.07% Ce was studied at 475 to 675° C. It was found that the addition of Ce lowered the flow stress by a factor of three. It was concluded that this arose from a decrease in the volume fraction of the harder alpha phase due to the reduced zinc solubility.

A note on using sequences to construct orthogonal designs

Abstract: Several constructions are given which show how to construct orthogonal designs from sequences of commuting variables with zero non-periodic auto-correlation function. Disciplines Physical Sciences and Mathematics Publication Details Robinson, PJ and Seberry, J, A note on using sequences to construct orthogonal designs, Colloquia Mathematica Societatis Janos Bolyai, 18, 1976, 911-932. This journal article is available at Research Online: http://ro.uow.edu.au/infopapers/979

The ultimate and transient effects of a catastrophe which eliminates a fraction of an age group in a population

Abstract: A catastrophe which eliminates a fraction of an age group in a population is investigated, and the asymptotic reduction in the population is obtained. It is shown that the loss of a youthful group is ultimately more damaging than the loss of an older group. An investigation of the transients following a catastrophe shows that they are reduced to less than 1% of the steady state after a small number of generations.

Commutative non-associative number theory

Abstract: Trevor Evans in (8) introduced postulates for a non-associative numbertheory similar to, but less general than, those of A. Robinson (9). Evans'number theory is also non-commutative under addition and multiplication,but an alternative equality axiom also suggested by Robinson leads to a numbertheory which is commutative under addition and still non-associative except inthe special case:a+ib+a) = (a+b)+a. (1)In this paper we prove that the theorems in Evans' paper hold for thecommutative system and provide some interpretations based mainly on workof Etherington (1-7).Evans' and Robinson's systemsEvans' primitive terms are the set of non-associative numbers (" numbers "in the axioms below) and the binary operation of addition. His axioms areas follows:(i) 1 is a number,(ii) to every pair of numbers a, b there corresponds a third called the sumof a and b and written a+b,(iii) there are no numbers a, b such that a+b = 1,(iv) if the numbers a, b and c, d are such that a+b = c+d, then a = cand b = d,(v) if a set of numbers contains 1, and if whenever it contains numbersa, b then it contains a+b, then the set contains all numbers.Robinson's axioms are equivalent except that he allows for a number ofelements that are (like 1) irreducible in the sense of (iii). Any realisation ofhis axioms he calls a forest. (This suggests one of the interpretations to begiven later.) The set of irreducible elements is called the base of the forestand the cardinal number of this se ordert the of the forest.Evans' system is a forest of orde 1 (whicr h Robinson calls a simple forest),the restriction to one irreducible element is also included in the inductionaxiom (v).

Using cyclotomy to construct orthogonal designs

Abstract: An orthogonal design of order n and type ( s 1 , s 2 ) on the commuting variables x 1 , x 2 is a matrix of order n with entries from {0, ± x 1 , ± x 2 } whose row vectors are formally orthogonal. This note uses cyclotomy to construct orthogonal designs and finds several infinite families of new designs.

People at the polls: a geographical analysis of a local government election, Wollongong, 1974

Abstract: This thesis examines the pattern of voting of the 1974 Wollongong City Council Local Government Election. The analysis is conducted at three levels; first, overall, in which the effect of socio-economic factors upon the party vote at each booth is considered; second, within the Wards, in which the local context of voting is reviewed; and thirdly, the issue level. Multiple correlation and regression analysis was used in an attempt to understand the pattern of variation in the relative magnitude of the party related vote. Residuals from the analysis suggested the operation of ward based factors,thus in Chapter 4 the scale of the analysis was changed in an attempt to determine whether or not local effects noted in the literature of electoral geography could be discerned. Because of data and system problems, however, this analysis could not be conducted in a way that gave results capable of being added to those from the previous analysis. Instead, the local effect was sought at the intra party intra ward level and among the votffiobtained by independents. At both levels local effects were found to exist, although there appeared to be other systematically operating factors within some wards that affected the voting response surface. TI1e thesis then turns to an examination of some well marked inter ward variations in the nature of local effects. One of the most important factors contributing departures from a regular local effect was found to be the 'common ticket' electoral strategy which results in a candidate gaining almost uniform support across the ward. Local factors influencing the flow of information could still be seen to affect these results and three case studies of this situation are included. Re-examination of the support for 'party' candidates in other wards indicated that two other ii

Children coping with crisis in Papua New Guinea and Australia: A cross-cultural application of an analogue

Abstract: The extinction period of an instrumental learning paradigm was employed, as by Viney and Clarke (1974), as an experimental analogue of Caplan’s concept of crisis. Data from Papua New Guinea and Australian preschool children indicated that: (1) Papua New Guinea children made more fixed responses, as predicted, but showed fewer “giving up” reactions than Australian children; (2) no differences were found between children from 2 Papua New Guinea subcultures; and (3) in terms of replication of earlier results (a) the negative effect of the loss of social rather than nonsocial sources of need satisfaction in the “crisis” on “giving up” only was fully confirmed, and (b) the positive effects of the availability of social rather than nonsocial stimuli during the “crisis” on fixed responses, frustration, and the more adaptive seeking of new, alternative responses were noted for the children of both cultures but were especially salient within the Papua New Guinea sample.

A Rapid and Quantitative Gas Chromatographic Determination of Glutamine in the Presence of Glutamic Acid

Abstract: Glutamine can be converted to a stable volatile derivative by treatment with methanol and acetic anhydride. The method is suitable for the quantitative gas chromatographic determination of glutamine in the presence of glutamic acid.