Vice-Chancellor's Report 1978-82

Yeung ,Kai-shing 楊啓誠 ——. "On determinatio n o f frequency-dependen t two-por t parameter s i n multistag e amplifiers. " International Journal of Electronics, 49: 3 (1980) . ——. "Plottin g frequenc y characteristic s fro m th e unfactore d polynomial. " International Journal of Electronics, 49: 3 (1980) . —— "A remar k o n th e us e o f Remec' s metho d o f findin g breadawa y points. " IEEE Transactions on Automatic Control, AC-26:4 (1981) . ——. "Applicatio n o f Routh's criterion to test for positive real functions." Electronics Letters, 17:1 1 (1981). ——. "Stabilit y o f reduced model obtained by truncation. " Electronics Letters, 1 7 :11 (1981). 系内同寅合著 Co-authored Publications (Intra-department ) 114 Dahele , J.S. ; Lam , Y.W. ; an d Liao , York . ''Work-stud y programm e i n electronics. " Hong Kong Engineer, 8 (1980 ), pp. 19-21. 115 Dahele , J.S . an d Lee , Kai-fong . "A dual-frequenc y circula r dis c microstri p antenn a wit h tunabl e characteristics. " I n Proceedings of the 12th European Microwave Conference(Finland ), pp. 390-395. 1982 . 116 Dahele , J.S. an d Lee , Kai-fong . "Characteristic s o f annularrin g microstri p antenna. " Electronics Letters, 18:2 4 (1982) , pp. 1051-1052 . 117 Dahele , J.S. an d Lee , Kai-fong. "Som e mircowav e an d antenna research at Th e Chines e Universti y o f Hong Kong." Hong Kong Engineer, 1981.8 , pp. 31-38 . 118 Dahele , J.S . an d Lee, Kai-fong. "Theoretica l an d experimental studie s o f th e driving-poin t impedanc e o f corner-reflecto r antennas." IEEE Transactions on Antennas and Propagation, AP-30: 4 (1982.7), pp. 686-692. 119 Dahele , J.S. and Lee, Kai-fong. "Tunable microstrip antenn. " (Britis h Patent, Application No . 8207726) , 1982.3 . 120 Kwok , Harr y H.L . an d La m Y.W . "Silico n sola r cell s an d their terrestria l applications. " Hong Kong Engineer, 9(1981) . 121 Kwok , Harr y H.L . an d Lee , Kai-fong. "Temperature-dependenc e o f the physical parameters of a simple transistor model. " Solid-State Electronics, 23: 2 (1980), pp. 185-187 . 數學系 Department o f Mathematic s Chan, Wai-leung 陳偉良 ——. "Suboptimalit y i n linea r contro l system s wit h tim e delay. " Journal of Australian Mathematics Society, B-2 3 (1982 ) pp. 428-437. —— an d (Ng, S.K.). "Variationa l control problems for linear differential systems with stieltjes boundary conditions. " Journal of Australian Mathematics Society, B-2 0 (1978). —— an d (Ng , S.K.) . "Optima l periodi c contro l i n linea r quadrati c problems. " I n Proceedings of the 17th IEEE Conferenceon Decision and Control 1979.1 . —— an d (Li, C.W.) . "Controllabilities , observabilit y an d duality i n linea r systems with multiple norm-bounded controllers ." I n Proceedings of the 18th IEEE Conference in Decision and Control 1979.12 . —— an d (Ho , L.F.) . "Lowe r bound s an d dualit y i n th e optima l contro l o f distribute d systems. " Journal of Mathematical Analysis and Applications, 70: 2 (1979) . —— an d (Ng , S.K.) . "Normalit y an d proper performanc e improvemen t i n periodi c control. " Journal of Optimization Theory and Applications, 29:2(1979) . —— an d (Tai , C.H.). "Oscillation s i n a class of nonlinear retarde d differential equations." Southeast Asian Mathematics Society Bulletin, 3 (1979). —— an d (Tai , C.H.) . "Variationa l approximation s i n energ y spac e fo r th e regulato r proble m wit h tim e delay. " Journal of Optimization Theory and Applications, 30:2(1980) . —— an d (Li , C.W.) . "Controllability , observabilit y an d dualit y i n infinit e dimensiona l linea r system s wit h multipl e norm - bounded controllers. "International Journal of Control, 33: 6 (1981) , pp. 1039-1058 . ——and (Ng , S.K.) . "Minimum principle for systems with boundary condition s and cost having stieltjes-type integrals." Journal of Optimization Theory and Applications, 33: 4 (1981), pp. 557-573 . ——and (Wong , Y.K.) . "Stat e deadbea t contro l b y linea r functio n observer. " I n Preprints International Federation of Automatic Control, 8th Triennial World Congress (Kyoto), pp . 96-101. 1 (1981). ——and (Li , C.W.) . "Max-Mi n controllabilit y i n pursui t game s with norm-bounded controls. " Journal of Optimization Theory and Applications, 39: 1 (1982.5), pp. 89-113 . ——and (Lau , C.K.) . "Constraine d stochasti c controllabilit y o f infinit e dimensiona l linear systems. " Journal of Mathematical Analysis and Applications, 85: 1 (1982), pp. 46-78. Chow, Hing-lun 周慶麟 ——. "A note on nilpotent measures. " Archiv Der Mathematik, XXX I (1978-79) . 132