Bulletin Autumn‧Winter 1980

Hung, H. S . ， ‘Computer calculation of mechanisms involving intermittent motions', Mathematical Research Centre Report, 2026, US Army, (1979). Tung, Douglas S . ， 'Enchanced thoughts on computer studies and instructional computing in secondary education in Hong Kong ’， Hong Kong Science TeacherJournals, 8:1, (1980.6). Tung, Douglas S . ， Lo ， Wai-hon, Chan, Irene Wai-Fong & Chong, Wing-Kong,A learning aid to elementary COBOL: A structured programming approach, Caves Books (H.K.) Co., (1980). Department of Electronics 電子學系 Chen, C. F. & Hsiao, C. H . ， 'Solving integral equations via Walsh functions', Computer and Electrical Engineering, 6，(1979). Chen, C. F. & Leung ， K. K . ， 'A new look at partial fraction expansion from a high-level language viewpoint', International Conference on Circuits and Computers Proceedings, 1 ， New York, (1980). Chen, T. C., 'Overlap and pipeline processing', Intro duction to ComputerArchitecture ,SecondEdition, (Stone, H., ed.), Science Research Associates, Chicago, (1980). Choy, T.T.C., 'An introduction to biomedical engineering', Resonance , (1979). Dahele, J. S. & Cullen, A. L., ‘Electric probe measure ments on microst rip', IEEE Transactions on Micro wave Theory & Techniques, 28:7, (1980). Kwok, H.H.L. & Siu ， W.C., 'Carrier concentration and mobility in chemically-sprayed CdS thin films', Thin Solid Films, 61:2，(1979). Kwok, H.H.L., ‘Applications o f autoregressive technique to spectral analysis o f physiological signals', Automedica, 3，(1979). Kwok, H.H.L. & Lee ， K.F., 'Temperature-dependence of the physical parameters o f a simple transistor model' ， Solid-State Electronics, 23 :2, (1980). Kwok, H.H.L . ， ‘Effects of inhomogeneity on thermo electric andphotothermo electric analyses', Journal o fPhysics. D (Applied Physics), 13，(1980). Kwok, H.H.L. & Chau ， Y. C., 'Carrier density and mobility in CdxZn1-xS chemically-sprayed films', Thin Solid Films, 66:3，(1980). Kwok, H.H.L., Leung, T. C . ， Smallwood, R. & Linkens, D. A., 'Autoregressive model order selection applied to physiological signals', Auto medica, 3:4, ( 1 9 80). Lam, Y. W., Siu, W. C. & Lee, Y. C., 'Simple tech niques for making patterns of tin oxide films', Solid-State Technology, 22, (1979). Lee, K. F. & Chu, L.W.M .， 'Instability o f ion-ion- hybrid waves in current-carrying plasmas', Journal o fPlasma Physics, 22, (1979). Lee, K. F .， 'Instability of lower-hybrid waves in collisional plasmas with a field-aligned current', Journal o f Plasma Physics, 23, (1980). Poon, R.K.L., ‘A power-law fit to oxygen absorption at 60 GHz and its application to remote sensing of atmospheric temperature', Radio Science, 15, (1980). Yeung, K. S., ‘A quick method for estimating roots of p o l y n o m i a l s ' , Rosonance, 6 ， (1979). Yeung, K. S., ‘On determination o f frequency- dependent two-port parameters in multistage amplifiers', International Journal o f Electronics, 49:3,(1980). Yeung, K. S., 'Plotting frequency characteristics from the unfactored polynomial', International Journal o f Electronics, 49:3, (1980). Department of Mathematics 數學系 Chan, W. L. & Tai, C. H., ‘Oscillations in a class of nonlinear retarded differential equations', South east AsianMathematics SocietyBulletin, 3, (1979). Chan, W. L. & Ho, L. F., 'Lower bounds and duality in the optimal control of distributed systems', Journal o fMathematics Analysis and Applications, 70:2,(1979). Chan, Wj L . & Ng, S. K . ， 'Normality and proper performance improvement in periodic control', Journal o f Optimization Theory and Applications, 29:2,(1979). Chan, W. L. & Li, C. W., ‘Controllabilities, observa b ility and duality in linear systems with multiple norm-bounded controllers', Proceedings, 18th IEEE Conference in Decision and Control, (1979.12). Chan, N. N .， 'Estimating linear functional relation ships,,RecentDevelopments in StatisticalInference and Data Analysis, North-Holland, Amsterdam, (1980). Chan,N. N. & Wong, C. S., ‘Existence of an A-optimal model for a regression experiment', Journal o f Mathematical Analysis and Applications, 77, (1980). Chan, W. L. & Tai ， C. H .， 'Variational approximations in energy space for the regulator problem with time delay ， Journal o f Optimization Theory and Applications, 30:2，(1980). Chow, H. L., ‘On topologically simple semigroups', Revue Roumaine de Mathematiques pures ep appliquees, 24，(1979). Lai, K. F., ‘Tamagawa number', Compositio Mathe matica, 41 ， (1980). Shenton, L. R., Bowman, K. O. & Lam ， H. K . ， 'Com ments on a paper by R. C. Geary on standardized 58