Browsing by Author "LEE, YY"

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A PRECISION EXPERIMENT ON ELECTRONS, PHOTONS AND MUONS AT LHC
(1993-02-01)
AZIZ, T
;
BOCK, R
;
BRAUNSCHWEIG, W
;
GEULIG, E
;
HILGERS, K
We describe the upgrade of the L3 detector for running at LHC. The principle goals are the precise measurement of electrons, photons and muons.
KINETICS OF THE REACTION OF HSO WITH O3 AT TEMPERATURES 273-423 K
(1994-01-01)
LEE, YY
;
LEE, YP
;
WANG, NS
;
應用化學系
;
Department of Applied Chemistry
The rate coefficient of the reaction of HSO with O3 at five temperatures in the range 273-423 K was determined by means of the discharge-flow/laser-induced-fluorescence technique. The laser-induced fluorescence of HSO was detected by the gated photon-counting technique; a detection limit approximately 4 X 10(9) molecules cm -3 was achieved. The reaction was carried out under pseudo-first-order conditions with [03] much greater than [HSO]; the rate coefficient was determined to be k = (4.7 +/- 1.0) X 10(-14) CM3 Molecule-1 s-1 at 298 K, approximately 30% greater than, but within experimental uncertainty of the only previous measurement by Wang and Howard by means of the discharge-flow/laser-magnetic-resonance technique. The temperature dependence of the rate coefficient is expressed in the Arrhenius form, k(T) = (2.1 +/- 0.7) X 10(-12) exp[- (1120 +/- 320)/T] cm3 molecule-1 s-1.
THE MOST VITAL EDGES WITH RESPECT TO THE NUMBER OF SPANNING-TREES IN 2-TERMINAL SERIES-PARALLEL GRAPHS
(1992)
JAN, RH
;
HSU, LH
;
LEE, YY
;
資訊工程學系
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Department of Computer Science
A set E' of k edges in a multigraph G = (V, E) is said to be a k most vital edge set (k-MVE set) if these edges being removed from G, the resultant graph G' = (V,E - E') has minimum number of spanning trees. The problem of finding a k-MVE set for two-terminal series-parallel graphs is considered in this paper. We present an O(Absolute value of E) time algorithm for the case k = 1, and an O(Absolute value of V(k) + Absolute value of E) time algorithm for arbitrary k.