Publications

Hadgraft, RG & Volker, RE 1981, A model for predicting aquifer recharge from rainfall and river flow..
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Groundwater management programs frequently require data on the response of the aquifer to its various inputs and outputs. A numerical model has been developed to assist in the assessment of recharge quantities. The model is designed to be capable of representing the processes of rainfall and river recharge, irrigation extraction and leakage to the sea.-from Authors

Cohen, GL & Shannon, AG 1981, 'John Ward's method for the calculation of Pi', Historia Mathematica, vol. 8, no. 2, pp. 133-144.
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What may be the last attempt to use geometric methods to calculate pi is found in a textbook published in England in 1707. The underlying algebraic and numerical methods are analyzed in this paper. © 1981.

Davis, HA, Gass, GC, Eager, D & Bassett, J 1981, 'Oxygen deficit during incremental exercise', European Journal of Applied Physiology and Occupational Physiology, vol. 47, no. 2, pp. 133-140.
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GASS, GC, CAMP, EM, DAVIS, HA, EAGER, D & GROUT, L 1981, 'The effects of prolonged exercise on spinally injured subjects', Medicine & Science in Sports & Exercise, vol. 13, no. 5, pp. 277???283-277???283.
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Hadgraft, RG, Volker, RE & Stark, KP 1981, 'unknown', IN: PROC. 19TH IAHR CONGRESS, (NEW DELHI, INDIA: FEB. 1-7, 1981), vol. 4, New Delhi, India, IAHR, 1981, Subject-C(b), Paper 11.
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Dynamic programming and simulation have been used to study a water resource system involving a major surface storage and an aquifer located downstream. The aquifer provides approximately 250,000 ML of irrigation water annually and natural recharge is augmented by artificial recharge using river water. Results are presented from various operating rules to determine the optimal strategy of releases from the surface storage. The operating rules depend on factors such as reservoir level, expected inflows and water demands. (A)

Kalam, MA 1981, 'MODIFIED RAYLEIGH-RITZ METHOD IN NONAXISYMMETRIC THERMOELASTIC ANALYSIS OF AN ORTHOTROPIC CYLINDER', Journal of Thermal Stresses, vol. 4, no. 1, pp. 31-38.
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Kumar, A & Waldron, KJ 1981, 'NUMERICAL PLOTTING OF SURFACES OF POSITIONING ACCURACY OF MANIPULATORS.', Mechanism & Machine Theory, vol. 16, no. 4.
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A mathematical model of the random positioning errors of mechanical manipulators is developed. This model is applied to a computer program to plot the generating curves of equal error surfaces for given manipulator geometries.

Miyanaga, Y, Miki, N, Nagai, N & Hatori, K 1981, 'ADAPTIVE SIMULTANEOUS ESTIMATION OF TIME VARIABLE AUTOREGRESSIVE AND MOVING-AVERAGE PARAMETERS.', Systems, computers, controls, vol. 12, no. 2, pp. 70-77.
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A new adaptive simultaneous estimation of time-variable autoregressive and moving-average parameters is proposed. The detection and quantitative estimation of variation of ARMA parameters are realized from the maximum likelihood function of prediction errors at each instant. This algorithm enables one to estimate MA parameters accurately. The algorithm is also used to identify a reference model with unknown inputs. In speech analysis, this method is shown to be used for correct estimation of ARMA parameters.

SAYERS, BM, RUGGIERO, C & FEUERLICHT, J 1981, 'STATISTICAL VARIABILITY OF BIOMEDICAL DATA .2. THE INFLUENCE OF SERIAL-CORRELATION ON POWER ESTIMATES, AND ON COMPARATIVE TESTING OF SAMPLES', MEDICAL INFORMATICS, vol. 6, no. 3, pp. 207-220.
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VOINOV, AA & SVIREZHEV, YM 1981, 'STABILITY OF A SIMPLE FRESH-WATER ECOSYSTEM MODEL', ZHURNAL OBSHCHEI BIOLOGII, vol. 42, no. 6, pp. 936-940.

WHITE, CP, RICHARDSON, RH & POSEN, S 1981, 'THE SYNTHESIS OF DIHYDROXYLATED VITAMIN D METABOLITES BY HUMAN RENAL MITOCHONDRIA', The Journal of Clinical Endocrinology & Metabolism, vol. 53, no. 2, pp. 450-452.
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Bakoss, SL, Faulkes, KA & Pulmano, VA 1970, 'DETERMINATION OF CREEP AND SHRINKAGE CHARACTERISTICS FOR THE PREDICTION OF THE LONG-TERM DEFORMATIONS OF REINFORCED CONCRETE BEAMS.', National Conference Publication - Institution of Engineers, Australia, pp. 31-36.

Bone, DJ, Bachor, H-A & Sandeman, RJ 1970, 'Behaviour of a Dense Metal Vapour Resonantly Pumped by a CW Dye Laser', Second Australian Laser Conference.

Hadgraft, RG, Volker, RE & Stark, KP 1970, 'OPTIMAL CONJUNCTIVE OPERATION OF A SURFACE RESERVOIR AND AN AQUIFER.', Proceedings, Congress - International Association For Hydraulic Research, pp. 183-191.

Song, SM & Waldron, KJ 1970, 'THEORETICAL AND NUMERICAL IMPROVEMENTS TO AN INTERACTIVE LINKAGE DESIGN PROGRAM - RECSYN.', Proceedings - OSU Applied Mechanisms Conference (Oklahoma State University).

TATEISHI, T, SHIRASAKI, Y, MIYANAGA, Y & FUKUBAYASHI, T 1970, 'QUANTITATIVE-ANALYSIS OF THE TRABECULAR PATTERN AND RHEOLOGICAL CHARACTERISTICS OF HUMAN CANCELLOUS BONE', BIORHEOLOGY, PERGAMON-ELSEVIER SCIENCE LTD, pp. 126-126.